ФОТОРЕАКТИВНЫЙ ПОЛИАМИДНЫЙ ПОЛИМЕР И СПОСОБ ЕГО ПОЛУЧЕНИЯ

Изобретение относится к фотореактивному полиамидному полимеру и сополимеру, применяемых для фотоориентации жидких кристаллов в устройствах отображения информации, таких как LCD, а также к способам получения полимера и сополимера, и к ориентирующему слою, содержащему полиамидный полимер или сополимер. Фотореактивный полиамидный полимер содержит повторяющееся звено формулы 1:где m равно от 10 до 1000; n равно от 2 до 6; и Rобозначает фотореактивную функциональную группу, выбранную из группы, включающей функциональную группу на основе циннамата формулы 1a, функциональную группу на основе кумарина формулы 1b и функциональную группу на основе азогруппы формулы 1c:где n1 равно целому числу от 0 до 4; n2 равно целому числу от 0 до 5. Фотореактивный полиамидный сополимер содержит вышеуказанное звено формулы 1 и повторяющееся звено формулы 2:где 1 равно от 10 до 1000; n равно от 2 до 6; и Rозначает атом водорода или замещенный либо незамещенный алкил, имеющий от 1 до 20 атомов углерода. Способ получения ...

СПОСОБ ПОЛУЧЕНИЯ ЖИДКОКРИСТАЛЛИЧЕСКОЙ ПОЛИМЕРНОЙ ПЛЕНКИ

... 1. Способ получения пленки из замещенного полипараксилилена путем последовательного осуществления в вакууме в трехзонном реакторе, состоящем из зоны сублимации, зоны пиролиза и зоны конденсации, сублимации и пиролиза замещенного циклического дипараксилилена при температуре от 450 до 700°С с последующей конденсацией и одновременной полимеризацией полученного замещенного параксилилена на подложке с образованием пленки замещенного полипараксилилена, отличающийся тем, что остаточное давление в системе составляет от 0,000001 до 0,5 мм рт.ст., сублимацию проводят при температуре от 0 до 350°С, конденсацию и одновременную полимеризацию проводят при температуре от 150 до 320°С, причем процесс осуществляют при скорости формирования пленки при полимеризации, составляющей от 0,0001 до 0,01 мкм/мин, а группы-заместители в замещенном циклическом дипараксилилене имеют концевые мезогенные группы. 2. Способ по п.1, отличающийся тем, что сублимацию проводят при температуре от 15 до 100°С. 3. Способ по п ...

Способ изготовления устойчивого к нагрузкам жидкокристаллического переключающего и индикаторного устройства

Сущность- изобретения: добавление коронан- дов или криптандов к сегнетоэлектрическим жидкокристаллическим (СЖК)-смесям может перевести СЖК-материал в состояние с букшелф - или квази-букшелф -геометрией. При использовании СЖК-смесей такого типа поврежденные под действием нагрузок дисплеи могут регенерироваться за счет кратковременной обработки электрическим полем. 4зпф-лы. 9 ил, Зтабл.

FLÜSSIGKRISTALL ORIENTIERUNGSCHICHT

FLUESSIGKRISTALLANZEIGEGERAET

LIQUID CRYSTAL CELL AND METHOD OF FABRICATION THEREOF

... 1385294 Liquid crystal compositions ASAHI GLASS CO Ltd 24 May 1973 [25 May 1972] 24885/73 Heading C4X [Also in Division H4] A liquid crystal material contains preferably 0À03-5% of a fluoralkyl compound. In use in an electro-optic cell the compound reacts with the inner surfaces of the cell and imposes a uniform molecular alignment on the material. As described the material is a 1 : 1 mixture of pmethoxy- and p-ethoxy-benzylidene-p-n-butylanilines.

Multiblock compounds comprising hydrocarbon blocks & fluorocarbon, siloxane, or oligo-/poly-(oxaalkylene) block and their use in liquid crystal materials

LIQUID CRYSTAL DISPLAY ELEMENT

FUNKTIONALISIERTE PHOTO-REACTIVE CONNECTIONS

NEW LIQUID CRYSTAL MEANS OF ORIENTATION

TOPOLOGICAL-STRUCTURED POLYMER COATING

Topologically structured polymer coating

PROCESS OF ALIGNING LIQUID CRYSTAL MEDIA

Process for forming a homogeneously oriented film of a nematic liquid crystal

A homogeneously oriented film of a nematic liquid crystal consisting in the action on the molecules of the liquid crystal confined by two plates by an orienting matrix produced on the plate surfaces that are in contact with the molecules of the liquid crystal is produced. For this the orienting matrix (3) is at least one monomolecular layer (13) of a surface-active substance which, prior to application to the surfaces of the plates (2) that are in contact with the molecules (1) of the liquid crystal, forms at the liquid-gas phase boundary and after application is subjected to a thermal treatment at a temperature of from 80 to 180 DEG C. The films obtained can be used as clock indicators in digital displays. ...

Process for orienting the molecules of liquid crystals

The molecules of a liquid crystal layer disposed atop a silicon dioxide-coated surface of an electro-optical device are oriented by treating the coated surface with a mixture of an aliphatic alcohol and of an amine before the liquid crystals are applied. The surface is then washed with an inert organic solvent. In this way the crystals can be oriented perpendicularly to the surface without increasing their conductivity.

Optical laminate, polarizing plate and organic EL display device

Cinnamic acid derivative, polymer thereof, and liquid crystal alignment layer comprising cured article thereof

Provided is a liquid crystal alignment layer of which a constituent member is a compound represented by general formula (I).

The liquid crystal panel, display device and manufacturing method of liquid crystal panel

Liquid crystal aligning agent and using the liquid crystal aligning agent of the liquid crystal alignment film

Manufacturing composition of the orientation layer, the display substrate and its manufacturing method, and display panel

Liquid crystal compsn - contg a non-ionic aligning agent for electro optical cells

LIQUID CRYSTAL CELL AND METHOD OF FABRICATION THEREOF

manufacturing method of liquid crystal cell using self-assembled monolayers

NEMATIC LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL DISPLAY DEVICE UTILIZING THE SAME

LIQUID CRYSTAL ALIGNMENT LAYER, LIQUID CRYSTAL DEVICE USING THE SAME AND METHOD FOR MANUFACTURING THE SAME

... 본 발명은 액정 배향층 및 이를 이용한 액정표시소자의 제조방법에 관한 것으로, 더욱 상세하게는 기존의 폴리이미드 배향막 없이 액정층의 액정분자들을 균일하게 배열할 수 있는 액정 배향층 및 이를 이용한 액정표시소자의 제조방법에 관한 것이다. 본 발명에 따르면 기존의 폴리이미드 배향막 없이 액정분자들을 균일하게 배열할 수 있고 우수한 전기광학특성을 구현할 수 있다.

ALIGNMENT LAYER EMPLOYING POLYIMIDE COMPOUND COMPRISING DISCOTIC LC COMPOUND AND POLYIMIDE COMPOUND HAVING AZO GROUP, AND LCD DEVICE

PURPOSE: An alignment layer, and a liquid crystal display(LCD) device containing the alignment layer are provided to increase the view angle of an LCD device and to obtain optical alignment more simply. CONSTITUTION: An alignment layer comprises a second polyimide compound which comprises a discotic liquid crystal compound showing light alignment, and a first polyimide compound having an azo group and showing an optical anisotropicity. Preferably the discotic liquid crystal compound is represented by the formula 2; and the first polyimide compound is represented by the formula 1. © KIPO 2008 ...

LIQUID CRYSTAL ALIGNMENT COMPOSITION, METHOD OF PREPARING LIQUID CRYSTAL ALIGNMENT FILM, AND LIQUID CRYSTAL ALIGNMENT FILM, LIQUID CRYSTAL DISPLAY USING THE SAME

LIQUID CRYSTAL ALIGNING AGENT, LIQUID CRYSTAL ALIGNMENT FILM AND LIQUID CRYSTAL DEVICE

Provided is a liquid crystal aligning agent which can provide a liquid crystal device having excellent light stability. The liquid crystal aligning agent contains a polymer [A] which is at least one material selected from a group consisting of a polymer of a monomer having a polymerizable unsaturated bond, and a phenol-based polymer. The polymer [A] includes a group represented by -COOX^1, wherein X^1 represents a group detached by at least one between heat and light. COPYRIGHT KIPO 2016 ...

폴리아믹산 또는 그 유도체를 포함하는 액정 배향제, 액정 배향막 및 액정 표시 소자

... 본 발명은 폴리아믹산 및 그 유도체로 이루어지는 군에서 선택되는 적어도 1개의 중합체 및 N-메틸-2-피롤리돈, γ-부티로락톤 등으로 이루어지는 군에서 선택되는 제 1 용제, 부틸셀로솔브, 1-부톡시-2-프로판올, 디에틸렌글리콜에틸메틸에테르 등으로 이루어지는 군에서 선택되는 제 2 용제, 디이소부틸케톤, 디펜틸에테르로 이루어지는 군에서 선택되는 제 3 용제, 하기 식(1)로 나타내는 화합물의 군에서 선택되는 제 4 용제를 함유하는 액정 배향제에 관한 것이다. 액정 배향막용 도포막을 잉크젯법으로 인쇄하여 형성할 때에 본 발명의 액정 배향제를 사용하면, 도포막의 줄무늬 불균일을 방지할 수 있어, 막의 수축이나 에지의 들쭉날쭉함이 발생하지 않는다는 이점을 나타낸다. 식(1)에 있어서, R1이 탄소수 2의 알킬일 때 R2는 탄소수 3의 알킬이고, R1이 탄소수 4의 알킬일 때 R2는 탄소수 1 또는 2의 알킬이다.

LIQUID CRYSTAL ALIGNING AGENT, LIQUID CRYSTAL ALIGNMENT FILM AND LIQUID CRYSTAL DEVICE, AND METHOD FOR PRODUCING SAME

The present invention relates to a liquid crystal aligning agent which shows good rework property in a process for producing a liquid crystal alignment film and provides a liquid crystal device having excellent electrical properties. The liquid crystal aligning agent comprises a polymer component and a compound represented by chemical formula (1). In chemical formula (1), R^11 and R^12 satisfy (i) or (ii): (i) R^11 represents H or a monovalent organic group, and R^12 represents an organic group with a valence of (m+r). (ii) R^11 and R^12 are bound to each other to form a nitrogen-containing heterocycle. X^1 represents a protecting group, X^2 represents a group capable of forming a covalent bond or ionic bond with the polymer component, or a group capable of intermolecular polymerization of X^2, with the proviso that X^2 is different from a group represented by ′-N(R^11)_2-k-(X^1)_k′, m is an integer of 1 or more, r is an integer of 0 or more, m and r satisfy m+r>=2, and k is 1 or 2. COPYRIGHT ...

LIQUID CRYSTAL ALIGNING AGENT, LIQUID CRYSTAL ALIGNMENT FILM, LIQUID CRYSTAL DEVICE, MANUFACTURING METHOD FOR LIQUID CRYSTAL ALIGNMENT FILM, AND COMPOUND

Provided in the present invention is a liquid crystal aligning agent having good coatability on substrates. The liquid crystal aligning agent comprises a silsesquioxane (L) having a ladder-type structure represented by formula (1). In the formula (1), E^1 and E^2 each independently represent a monovalent organic group; n is an integer of 2 or greater; and E^1 and E^2s on different repeating units may be identical or different. COPYRIGHT KIPO 2017 ...

액정 표시 장치

... 본 발명은, 특정의 액정 조성물과 특정의 경화성 수지 조성물의 경화물을 사용한 씰제를 사용한 액정 표시 장치에 관한 것이다. 본 발명은, 액정층의 전압 유지율(VHR)의 저하, 이온 밀도(ID)의 증가를 방지해, 흰빠짐(白拔), 배향 불균일, 소부(燒付) 등의 표시 불량의 문제를 해결하는 액정 표시 장치를 제공하는 것이다. 본 발명의 액정 표시 장치는 액정층의 전압 유지율(VHR)의 저하를 방지하며, 배향 불균일, 소부 등의 표시 불량의 발생을 억제하는 특징을 가지므로, 특히, 액티브 매트릭스 구동용의 IPS 모드, FFS 모드 액정 표시 장치에 유용해, 액정 TV, 모니터, 휴대전화, 스마트폰 등의 액정 표시 장치에 적용할 수 있다.

SUBSTRATE, LIQUID CRYSTAL DISPLAY DEVICE INCLUDING SAME AND FABRICATING METHOD THEREOF

The present invention provides a substrate for a liquid crystal display which comprises a substrate, and an alignment film disposed on the substrate and made of an alignment material including photodegradable monomer, photoisomerizable monomer and an alignment part. The present invention provides a method for manufacturing a semiconductor device which comprises a step of applying an alignment material including photodegradable monomer, photoisomerizable monomer and an alignment part to the upper surface of a substrate and forming an alignment material layer; a step of performing first heat treatment on the alignment material, a step of emitting an ultraviolet ray to the alignment material film, and a step of performing second heat treatment on the alignment material. It is possible to reduce bright points and improve display quality such as a control ratio, and also to reduce afterimage and improve reliability, by forming the alignment film by ultraviolet irradiation to the alignment material ...

LIQUID CRYSTAL-ALIGNING AGENT, LIQUID CRYSTAL ALIGNMENT FILM, LIQUID CRYSTAL DEVICE, MANUFACTURING METHOD FOR LIQUID CRYSTAL ALIGNMENT FILM, POLYMER, AND DIAMINE

Provided is a liquid crystal aligning agent capable of having good liquid crystal aligning properties even with a reduced amount of exposure during a photo alignment process, and providing a liquid crystal device having excellent electric characteristics and contrast characteristics. A polymer [P] having a partial structure represented by formula (1) on its backbone is included in the liquid crystal aligning agent. In the formula (1): R^1 is a hydrogen atom, a fluorine atom, an alkyl group having 1-3 carbon atoms, a fluoroalkyl group having 1-3 carbon atoms, or a divalent linking group which bonds to Ar^1 to form part of the ring; R^4 is a hydrogen atom, a fluorine atom, an alkyl group having 1-3 carbon atoms, a fluoroalkyl group having 1-3 carbon atoms, or a divalent linking group which bonds to Ar^2 to form part of the ring; R^2, R^3, R^5 and R^6 are a hydrogen atom, a fluorine atom, an alkyl group having 1-3 carbon atoms or a fluoroalkyl group having 1-3 carbon atoms. Ar^1 and Ar^2 are ...

액정 배향제, 액정 배향막 및 액정 표시 소자

... 본 발명에 의하면, 고효율로 배향 제어능이 부여되고, 번인 특성이 우수한, 횡전계 구동형 액정 표시 소자용 액정 배향막을 부여하는 신규 중합체 조성물과, 그것을 사용하는 횡전계 구동형 액정 표시 소자용 액정 배향막이 제공된다. 본 발명은, (A) 소정의 온도 범위에서 액정성을 발현하는 감광성의 측사슬형 고분자, (B) 디이소시아네이트 성분 및 테트라카르복실산 유도체에서 선택되는 적어도 1 종과, 디아민 화합물의 2 종 이상을 사용하여 제조된 중합체, 및 (C) 유기 용매를 함유하는 중합체 조성물에 관한 것이다. 또 본 발명은, 당해 조성물을 횡전계 구동용의 도전막을 갖는 기판 상에 도포하여 도막을 형성하는 공정, 얻어진 도막에 편광한 자외선을 조사하는 공정 및 얻어진 도막을 가열하는 공정을 갖는, 액정 배향막을 갖는 기판의 제조 방법에 관한 것이다.

액정 배향제, 액정 배향막, 및 액정 표시 소자

... 배선 구조나 C/H 의 영향으로 발생하는 배향막의 도포 불량이나, 액정 표시 소자의 표시 불균일성 불량을 억제할 수 있고, 또한, 액정 배향제의 점도를 낮게 하면서, 수지 성분 비율을 크게 한 액정 배향제, 액정 배향막 및 액정 표시 소자를 제공한다. 폴리이미드 전구체 및 그 이미드화물인 폴리이미드로 이루어지는 군에서 선택되는 적어도 1 종의 중합체와, 하기의 용매 A, 용매 B 및 용매 C 를 함유하는 용매를 함유하는 것을 특징으로 하는 액정 배향제. 용매 A : N-메틸-2-피롤리돈, N-에틸-2-피롤리돈, γ-부티로락톤 및 디메틸이미다졸리디논으로 이루어지는 군에서 선택되는 적어도 1 종. 용매 B : 디프로필렌글리콜디메틸에테르 용매 C : 하기 식 (a) 로 나타내는 화합물 [화학식 1] (R1, R2 는 각각 독립적으로, 직사슬 또는 분기의, 탄소수 1 ∼ 8 의 알킬기이고, R1 및 R2 의 탄소수의 합계는 4 이상이다.) ...

PHOTO-CURABLE COMPOSITION, OPTICAL ANISTROPIC FILM AND ITS PREPARATION METHOD

Liquid Crystal Device

액정 배향제, 액정 배향막, 및 그것을 사용한 액정 표시 소자

... 본 발명은, 저온 소성이 가능하고 또한 액정 배향제의 인쇄성 (폴리머의 용제에의 용해성) 이 양호하고, 또한 액정의 배향성과 전압 유지율이 양호한 액정 배향막을 갖는 액정 표시 소자, 및 그 액정 배향막을 형성하기 위한 액정 배향제를 제공한다. 본 발명은, 하기 식 (1) ∼ (3) 으로 이루어지는 군에서 선택되는 적어도 1 개의 하이드라지드 유도체와, 하기 식 (4) 및 하기 식 (5) 에서 선택되는 적어도 1 종의 화합물을 반응시켜 얻어지는 중합체를 함유하는 액정 배향제에 관한 것이다. (상기 식 중, W, X, Z 는 각각 독립적으로 2 가의 유기기를 나타내고, Z 는 단결합 또는 2 가의 유기기를 나타낸다).

Photoalignment composition

Liquid crystal display

There is provided a liquid crystal display including: a liquid crystal display element which includes a pair of alignment films which are provided on facing surface sides of a pair of substrates, and a liquid crystal layer which is provided between the pair of alignment films and is configured to have a liquid crystal composition containing liquid crystal molecules having negative dielectric anisotropy, in which at least one of the pair of alignment films contains a compound obtained by crosslinking polymer compounds each including a first side chain which interacts with the liquid crystal molecules and a crosslinkable functional group as a second side chain, with each other, the liquid crystal composition configuring the liquid crystal layer contains at least one kind of an alkenyl compound represented by the following general formula (AN-1), and pretilt is applied to the liquid crystal molecules by the crosslinked compound.

A liquid crystal alignment film and a liquid crystal display element having the liquid crystal alignment film

The invention relates to a liquid crystal alignment agent, a liquid crystal alignment film and a liquid crystal display element having the liquid crystal alignment film. The liquid crystal alignment agent includes a polymer composition (A) and a solvent (B). The polymer composition (A) is obtained by reacting a mixture. The mixture includes a tetracarboxylic dianhydride component (a) and a diamine component (b). The diamine component (b) includes a diamine compound (b-1) represented by formula (I). As the bond energy of C-N of the acylamide group is stronger than both the bond energy of C-O of the ester group and the bond energy of C-O of the ether group, so by using the diamine compound having acylamide, the alignment film formed therefrom has an excellent thermal reliability and can improve the lifetime of the liquid crystal display devices.

Liquid crystal alignment agent containing end-modified polyamic acid ester, and liquid crystal alignment film

Disclosed is a liquid crystal alignment agent which contains a polyamic acid ester having a repeating unit, and having an end modified such that an amino group on the end has a specific structure. The liquid crystal alignment agent is characterised in containing: a polyamic acid ester having a repeating unit represented by general formula (1), and having an end modified such that an amino group on the end has a specific structure represented by general formula (2); and an organic solvent. (In general formula (1), X1 represents a tetravalent organic group, Y1 represents a divalent organic group, R1 represents a C1-5 alkyl group, and A1 and A2 independently represent a C1-10 alkyl group, alkenyl group, or alkynyl group which can have a hydrogen atom or a substituent.) (In general formula (2), A represents a single bond, -O-, -S-, or -NR3-, R1 and R2 independently represent a C1-30 organic group, and R2 and R3 can bond to form a ring structure. A3 represents a hydrogen atom or an optionally ...

Liquid crystal alignment agent containing end-modified polyamic acid ester, and liquid crystal alignment film

Disclosed is a liquid crystal alignment agent which can reduce microscopic irregularities on the surface of liquid crystal alignment films, improves liquid crystal alignment properties, and has improved electrical characteristics, such as the relaxation of residual DC voltage, and VHR/ion density. The liquid crystal alignment agent is characterised in containing: a polyamic acid ester having a structural unit represented by general formula (1), and having an end modified such that an amino group on the end has a specific structure represented by general formula (3); a polyamic acid having a structural unit represented by general formula (2); and an organic solvent. (R1 represents a C1-5 alkyl group, A1 and A2 independently represent a hydrogen atom or an optionally substituted C1-10 alkyl group, alkenyl group or alkynyl group, X1 and X2 represent a tetravalent organic group, and Y1 and Y2 represent a divalent organic group.) (In general formula (3), A represents a single bond, -O-, -S-, ...

O-plate having excellent durability and integrated polarizing plate comprising the same

There are provided an optical compensation film including an alignment film whose adhesiveness to a substrate and a liquid crystal layer and alignment property are excellent when a novel substrate is used to solve the problem regarding deteriorated durability being caused when a retardation film including a liquid crystal film is used under a hot and humid environment, and an integrated polarizing plate comprising the same. The O-plate includes a substrate; an alignment film prepared by coating the substrate with a composition for an alignment film that is composed of polyvinyl alcohol, a multifunctional acrylate monomer, a compatibilizing agent, a photo initiator and a solvent, followed by undergoing drying, curing and rubbing processes; and a splay-aligned liquid crystal film formed on the alignment film.

Liquid crystal alignment agent, liquid crystal alignment film, method for forming liquid crystal alignment film, liquid crystal display element, and polyorganosiloxane compounds

The present invention provides a liquid crystal alignment film which fully satisfies that as a liquid crystal display element in the practical aspects requires characteristics such as liquid crystal alignment properties, voltage retention and light resistance, etc.; a method for forming the liquid crystal alignment film; a liquid crystal alignment agent which has excellent storage stability suitable for as a forming material of the liquid crystal alignment film and can adopt the liquid crystal alignment film formed by photoalignment; and a liquid crystal display element having the liquid crystal alignment film. The liquid crystal alignment agent comprises [A] polyorganosiloxane compounds having at least one structure selected from the group consisting of a piperidine structure, a phenol structure and an aniline structure.

Optical element, its manufacturing method, and liquid crystal display device

To provide an optical element the view angle dependence of whose phase difference can be controlled without depending on only the selection of materials, so that the heat resistance of the optical element whose phase difference has the desired view angle dependence can be improved. The optical element 100 in which a polymerizable liquid crystal monomer is hybrid-oriented, is composed of a first polymerizable liquid crystal monomer M1 oriented while keeping a fixed angle with respect to the oriented surface and a second polymerizable liquid crystal monomer M2 hybrid-oriented with respect to the oriented surface, so that the view angle dependence of the phase difference of the optical element is controlled by the content ratio of the first polymerizable liquid crystal monomer M1 to the second polymerizable liquid crystal monomer M2. The optical element is manufactured by layering a first layer 101 formed by using the first polymerizable liquid crystal monomer M1 on an oriented film and a ...

Liquid crystal alignment agent, liquid crystal alignment film and liquid crystal display element

Provided is a liquid crystal alignment agent which can provide a liquid crystal display element which contains a durability such as being able to keep alignment for a liquid crystal even if a liquid crystal display element is used over a long period of time. The liquid crystal alignment agent comprises polymer with a repeating unit from an ethylenically unsaturated monomer, wherein the repeating unit comprises a cycloamine structure in which 2 carbon atoms adjacent to a nitrogen atom respectively have 2 substituents represented by following formula (S) and a phenol structure in which at least one ortho-carbon atom adjacent to hydroxyl has a substituent represented by following formula (S). -R11-X-R12 (S) ...

Liquid crystal alignment agent

The present invention provides a liquid crystal alignment agent for liquid crystal display element and a liquid crystal display element made of the liquid crystal alignment agent. Even under the conditions of that not limited on ITO, and using the reflect electrode, the liquid crystal alignment film with excellent calcining property also could be obtained by using the said liquid crystal alignment agent. The said liquid crystal alignment agent contains 100 part by weight of polymer having repeat units of the amidic acid and imide, the ratio of the said amidic acid repeat units are 40~60% based on the weight of total repeat units, and at least 5 part by weight of a compound comprising at least 2 epoxy inside the molecular.

Liquid crystal alignment agent, liquid crystal alignment film and liquid crystal display element which can improve the response speed of the liquid crystal display element and can provide high reliability

The present invention provides a liquid crystal alignment agent, a liquid crystal alignment film and a liquid crystal display element, which can improve the response speed of the liquid crystal display element and can provide high reliability, wherein the liquid crystal alignment agent is formed by irradiating with long-wavelength ultraviolet ray so that polymeric compounds in the liquid crystal and/or the liquid crystal alignment film are efficiently reacted and then the polymeric compounds in the liquid crystal and/or the liquid crystal alignment film proceed to the reaction step. The liquid crystal alignment agent comprises a polymer having the side chain structure represented by the following formula (I). The definitions of the dots and marks in the formula are the contents as described in the specification.

Liquid crystal compound, liquid crystal composition and use of the same

The invention seeks for a liquid crystal medium having stability to heat and light etc., a wide range of liquid crystal phase temperature, an extremely large dielectric anisotropy, and exhibiting optical isotropic liquid crystal phase. Further, the invention seeks various optical devices having a short response time, a large contrast ratio, and a low driving voltage, which can be used in a wide temperature range. The invention provides a liquid crystal composition having an achiral component T including at least one of compound (1) represented by the following formula (1), and a chiral agent. The liquid crystal composition exhibits an optical isotropic liquid crystal phase. (In the formula (1), R1 is, for example, an alkyl group with carbon number of 1-12; L1, L2 and L3 each independently represent hydrogen, fluorine, or chlorine; Y1 is, for example, fluorine.).

Liquid crystal aligning agent, liquid crystal alignment film and liquid crystal display element

Provided is a liquid crystal aligning agent which has excellent storage stability and is capable of providing a liquid crystal alignment film that exhibits excellent rubbing resistance, excellent liquid crystal alignment stability and quick reduction of accumulated charge, while being suppressed in flickering (namely, being at a low flicker level) immediately after driving. A liquid crystal aligning agent which contains: a polyamic acid ester having a specific repeating unit having a structure of formula (Y1-1) and a specific repeating unit having a structure of formula (Y2-1) (component A); and a polyamic acid having a specific structure (component B). (In the formulae, the symbols are as defined in the description.).

Liquid crystal alignment agent, liquid crystal alignment film, method for producing liquid crystal alignment film, liquid crystal display element and method for producing liquid crystal display element

The invention provides a liquid crystal alignment agent, which may obtain a liquid crystal alignment film good at a liquid crystal alignment property and an alignment stability. The liquid crystal alignment agent of the invention contains a polymer constituent, and a compound (D) represented by Formula (1) below. (In the formula, A1 is a group including a polymerizable unsaturated bond, A2 is a functional group which may react with an epoxy group, R1 is a (m+n) valent organic group, m is an integer ranging from 2 to 18, and n is an integer ranging from 1 to 18, wherein, (m+n) 20 is satisfied.).

Cured film forming composition, alignment material and retardation material

Liquid crystal device

Liquid crystal aligning film composition, liquid crystal aligning film and liquid crystal display element

Liquid crystal alignment agnet, liquid crystal alignment film, liquid crystal display device and method for fabricating liquid crystal display device

Liquid crystal orientation agent and liquid crystal display element

Vertical liquid crystal alignment agent and vertic

LIQUID CRYSTAL COMPOSITION, OPTICALLY ANISOTROPIC LAYER, OPTICAL LAMINATE, AND IMAGE DISPLAY DEVICE

A liquid crystal composition contains a liquid crystal compound; a photo-alignment compound; and a polymer obtained by polymerizing a monomer having two or more radically polymerizable double bonds and one or more hydroxyl groups.

LIQUID CRYSTAL DISPLAY AND METHOD OF MANUFACTURING THE SAME

A liquid crystal display, including: a first substrate, and a second substrate facing the first substrate; a liquid crystal layer disposed between the first substrate and the second substrates; a first liquid crystal alignment layer disposed between the liquid crystal layer and the first substrate; and a second liquid crystal alignment layer disposed between the liquid crystal layer and the second substrate, wherein: at least one of the first liquid crystal alignment layer and the second liquid crystal alignment layer includes reactive mesogens; and the liquid crystal layer includes an antioxidant.

Electro-optical cell for field effect type liquid crystal display

An electro-optical cell comprises, on an optical path, a pair of electrode base plates and a nematic liquid crystal material having a positive dielectric anisotropy and sandwiched between the electrode base plates, each of which comprises a transparent base plate having an inner surface, an electrode film provided on the inner surface, and a polyimide resin film orientated in one direction and provided on the inner surface over the electrode film, the electrode base plates being mutually disposed on opposite sides of the liquid crystal material with their respective polyimide resin films on their inner sides in mutually facing state with the orientated direction of one polyimide resin film intersecting that of the other as viewed along the optical path. An advantageous feature of this electro-optical cell is that the electrode base plates thereof has durable and heat-resistant orientation which can impart a uniform, initial alignment of ample strength to the liquid crystal.

Aligned emissive polymer blend, film and device based thereon

The invention relates to aligned emissive polymer blended with at least one chromophore with rigid-rod-type or discotic asymmetric molecular structure; to film incorporating such polymer blends; to devices incorporating such polymers blends or films, and to uses thereof.

LIQUID CRYSTAL DISPLAY HAVING HIGH RESPONSE SPEED

First alignment is performed by forming an alignment layer that includes a photopolymerizable monomer or oligomer on a substrate and the like, introducing liquid crystal, and bringing the liquid crystal into contact with the alignment layer including the photopolymerizable monomer or oligomer. The liquid crystal is then subjected to secondary alignment by photopolymerizing the photopolymerizable monomer or oligomer including the alignment layer to form an alignment regulator in a state in which an electric field is applied to the liquid crystal to hange the alignment of the liquid crystal.

NEGATIVE LIQUID CRYSTAL MATERIAL, LIQUID CRYSTAL CELL, AND LIQUID CRYSTAL DISPLAY

... in the chemical formula (1), X and Y are each H or a halogen group, and at least one of X and Y is a halogen group; and R and R′ are each a linear saturated alkyl group having 1 to 5 carbon atoms or a linear saturated alkoxy group having 1 to 5 carbon atoms.

Mixture for liquid crystal medium and liquid crystal display using the same

The present invention provides a mixture for liquid crystal medium and a liquid crystal display using the same. The mixture for liquid crystal medium comprises: at least one anisotropic liquid crystal material and a polymerizable monomer which will polymerize under UV irradiation. The weight percentage of the polymerizable monomer accounts for 0.1% to 1% of the total mixture for liquid crystal medium. In the mixture for liquid crystal medium and a liquid crystal display using the same according to the present invention, by using a polymerizable monomer which will polymerize under UV irradiation and the appropriate content ratio, the polymer bump with small size and good uniformity can be obtained within the mixture for liquid crystal medium after the polymerization, which avoids the bad liquid crystal alignment and the light spot occurred at the dark state of the liquid crystal panel, and then increases the response rapid of the liquid crystal panel to obtain high contrast ratio and stable ...

ALIGNMENT LAYER COMPOSITION, LIQUID CRYSTAL DISPLAY INCLUDING THE ALIGNMENT LAYER COMPOSITION, AND MANUFACTURING METHOD OF THE LIQUID CRYSTAL DISPLAY

An alignment layer composition including a copolymer of a dianhydride compound and a diamine compound, wherein the copolymer includes a repeating unit represented by Formula 1: wherein each of Ar1 and Ar2 is independently a substituted or unsubstituted aromatic group comprising 6 to 30 carbon atoms, X is an electron donating group, and is an ester group, wherein “*” indicates a point of attachment to the aromatic groups Ar1 and Ar2.

LIQUID CRYSTAL DISPLAY DEVICE AND MANUFACTURING METHOD THEREOF

An IPS type liquid crystal display device superior in mass productivity and improved in image quality with a higher contrast ratio by decreasing the occurrence of defective display due to the disorder of the initial liquid crystal alignment by the liquid orientation control film and realizing stable alignment of liquid crystals comprises: a pair of substrates, at least one which is transparent; a liquid crystal layer disposed between the pair of substrates; a group of electrodes formed on at least one of the pair of substrates to apply an electric field to the liquid crystal layer; plural active elements connected to the group of electrodes; and an orientation control film disposed on at least one of the pair of substrates, wherein said orientation control film is made of a photosensitive polyimide and a polyamide acid ester and is given orientation control ability by being irradiated with substantially linearly polarized light.

LIQUID CRYSTAL DISPLAY AND METHOD OF MANUFACTURING THE SAME

The liquid crystal display including a substrate; a thin film transistor disposed on the substrate; a field generating electrode in electrical communication with the thin film transistor; and an alignment layer disposed on the field generating electrode, wherein the alignment layer includes a self-assembled monolayer (SAM) derived from at least a first precursor compound and a second precursor compound, and wherein the first and second precursor compounds are different.

Liquid crystal alignment agent, liquid crystal alignment film manufactured using the same, and liquid crystal display device including the liquid crystal alignment film

Disclosed is a liquid crystal alignment agent that includes a polymer including polyamic acid including a repeating unit represented by the following Chemical Formula 1, polyimide including a repeating unit represented by the following Chemical Formula 2, or a combination thereof. In Chemical Formulae 1 and 2, X1, X2, Y1 and Y2 are the same as defined in the detailed description.

LIQUID CRYSTAL DISPLAY DEVICE, METHOD OF MANUFACTURING THE SAME, AND ALIGNMENT LAYER COMPOSITION

A liquid crystal display includes: a lower substrate; an upper substrate facing the lower substrate; an alignment layer on the lower substrate and the upper substrate; and a liquid crystal layer between the lower substrate and the upper substrate. The alignment layer includes two monomers including polyimide and a reactive mesogen, and an alignment solvent. The alignment solvent includes a first solvent configured to increase solubility of a polymer, a second solvent configured to increase spreadability of the alignment solvent, and a third solvent configured to decrease vapor pressure of the alignment solvent. A total content of the first solvent and the second solvent is from about 70 weight percent to about 95 weight percent based on a total weight of the alignment solvent. The alignment solvent has the vapor pressure at 90° C. from about 10 mm Hg to about 20 mm Hg.

LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL DISPLAY INCLUDING THE SAME

A liquid crystal composition includes at least one of liquid crystal molecules represented by Chemical Formulas A and B: where in Chemical Formulas A and B, L 1 to L 4 are each independently —H, —F, —Cl, —OCF 3 , —CF 3 , —CH 2 F, or —CHF 2 , R 1 to R 4 are each independently hydrogen, a halogen, a cyano group, a C1-C12 alkyl group, or a C1-C12 alkoxy group, and Z 1 to Z 4 are each independently a single bond, —O—, —COO—, —OCO—, —CF 2 O—, —OCF 2 —, —CH 2 O—, —OCH 2 —, —SCH 2 —, —CH 2 S—, —CH 2 CH 2 —, —C 2 F 4 —, —CH 2 CF 2 —, —CF 2 CH 2 —, —CH 2n —, where n is a natural number of 1 to 12, —CH═CH—, —CF═CF—, —CH═CF—, —CF═CH—, —C═C—, or —CH═CHCH 2 O.

Liquid crystal aligning agent and liquid crystal display device employing it

A liquid crystal aligning agent comprising a low resistance polyimide precursor having a volume resistivity of from 1×1010 to 1×1014 Ωcm when formed into a film, and a high alignment polyimide precursor or polyimide having a specific structure, and a liquid crystal display device employing this liquid crystal aligning agent.

LIQUID CRYSTAL MEDIUM

The present invention relates to a liquid crystal (LC) medium, to its use for optical, electro-optical and electronic purposes, in particular in LC displays, especially in LC displays of the PS (polymer sustained) or PSA (polymer sustained alignment) type, and to LC displays, especially PS or PSA displays, comprising said LC medium.

LIQUID CRYSTAL DISPLAYS WITH HOMEOTROPIC ALIGNMENT

Liquid-crystalline medium

The present invention relates to a liquid-crystalline medium, characterised in that it contains - a polymerisable component (A) containing one more polymerisable compounds and - a liquid-crystalline component (B) containing one more compounds of the general formula I and additionally comprises one or more compounds selected from the group consisting of the general formulae IX to XV, in which R0, rings A1 and A2, Z1, Z2, Y1-4, X0 and r are as defined in Claim 1.

РАЗВЕТВЛЕННЫЙ КРЕМНИЙОРГАНИЧЕСКИЙ ПОЛИМЕР И СПОСОБ ИЗГОТОВЛЕНИЯ ЖИДКОКРИСТАЛЛИЧЕСКИХ ПАНЕЛЕЙ ОТОБРАЖЕНИЯ ИНФОРМАЦИИ

Изобретение относится к области способов отображения информации и, в частности, к разветвленному кремнийорганическому полимеру и способу изготовления жидкокристаллической панели отображения с разветвленным кремнийорганическим полимером без использования пленки для выравнивания. Изобретение также относится к жидкокристаллической панели отображения, изготовленной этим способом. Разветвленный кремнийорганический полимер с молекулярной формулой I,где Rнепосредственно соединен с атомом кремния, Rсоединен с атомом кремния через атом кислорода, и два соседних атома кремния соединены через атом кислорода; где n - целое число в интервале от 2 до 15; где R- C-Cалкил; и где R- -(CH)-CONH-HC=CH-COO-CH. 3 н. и 13 з.п. ф-лы, 4 ил.

Flüssigkristallanzeigen mit homöotroper Ausrichtung

Die vorliegende Erfindung betrifft flüssig kristalline Medien (FK-Medien) enthaltend selbst-ausrichtende Additive, die eine homöotrope (vertikale) Ausrichtung der FK-Medien an einer Oberfläche oder den Zellwänden einer Flüssigkristallanzeige (FK-Anzeige) bewirken. Die Erfindung umfasst daher auch FK-Anzeigen mit homäotroper Ausrichtung des flüssigkristallinen Mediums (FK-Medium) ohne konventionelle Imid-Orientierungsschichten. Die FK-Medien sind optional durch eine polymerisierbare oder polymerisierte Komponente ergänzt, die zur Stabilisierung der Ausrichtung, zur Justierung des Tiltwinkels und/oder als Passivierungsschicht dient.

Heterocyclic diaza cpd. in liquid crystalline dielectric - for electrooptical registration devices, giving stable orientation parallel to electrode surfaces

A liquid crystalline dielectric is prepd. by mixing (a) a liquid crystalline material with (b) 0.001-5 (0.01-2) wt.% of is not 1 cpd. of formula (I) (where R' and R2 are H, or together form CH2-(CH2-Z-CH2)p-CH2; X is -CH2-or -CO-; Y is -Z-CH2-CH2- or a gp. with formula -Z-; Z is O, S or NH; m and n are 0,1 or 2; and p is 1,2 or 3. Acid addn. salts and/or metal salt chelate complexes of I may also be used. The dielectric is used in electro-optical registration devices. The dielectric becomes tably oriented parallel to the electrode surfaces in the registration device.

Electro-optical liquid-crystal display

The present invention provides an electro-optical liquid crystal display, in particular an STN (Super Twisted Nematic) display with low addressing voltage, which uses organic alignment layers of low layer thickness. The display includes a liquid crystal layer between two substrates, and alignment layers with a thickness in the range 3 nm to 150 nm situated on the insides of the substrates. The liquid crystal layer has a twist angle in the range of 110{ to 360{ and a surface tilt angle in the range of 2{ to 20{. The liquid crystal media has high dielectric anisotropy and a relatively broad operating and storage temperature range.

Bistable nematic liquid crystal device

A bistable nematic liquid crystal device comprises a layer of a nematic or long pitch cholesteric material contained between two cells walls. One or both walls are surface treated to provide two stable alignment directions into which liquid crystal molecules may switch under the influence of an applied electric field. This surface treatment also provides pretilt to the molecules and the pretilt angle may be different for the two alignment directions. The invention improves the switching by removing inelastic azimuthal memory anchoring energy and reducing azimuthal and zenithal anchoring energy of liquid crystal molecules at the cell walls without substantially changing molecular pretilt angles. The reduction in anchoring energy may be by a treatment to the cell walls or by an additive in the liquid crystal material. The treatment and additive may be an oligomer or short chain polymer applied to the wall prior to assembly in a cell, or as an up to 5% additive. The oligomer may be UV cured ...

Liquid crystal display device and method of fabricating the same

Materials

Liquid crystal devices and method for manufacturing liquid crystal devices

MODIFIZIERTE NEMATISCHE PHASEN

LIQUIDCRYSTALLINE MATERIAL WITH HOMEOTROPER ADJUSTMENT

Sptical compensatory sheet and method for preparing optically anisotropic layer

LIQUID CRYSTAL DISPLAY DEVICE

POLYMERS HAVING ENHANCED ELECTRICAL AND MAGNETIC PROPERTIES

... "POLYMERS HAVING ENHANCED ELECTRICAL AND MAGNETIC PROPERTIES" Liquid crystal polyerms are associated with units which are active an an electric or magnetic field to produce a polymeric product having enhanced physical magnetic or electric properties. The electrically or magnetically active unit used in the invention can be associated with the liquid crystal polymer by reaction with the liquid crystal polymer to form a copolymer, or by being dissolved or otherwise intimately mixed in the liquid crystal polymer. Suitable magnetically active units include metal complexes based on bis(salicylidene)ethylenediimine.

PHOTOALIGNMENT MATERIALS HAVING IMPROVED ADHESION

The present disclosure provides for new photoalignment (co)polymer materials which demonstrate improved adhesion to a substrate. The (co)polymeric structure includes at least one photochemically active chromophore and at least one adhesion promoter group. Articles of manufacture, optical elements, ophthalmic elements and liquid crystal cells which include at least one photoalignment layer made from the photoalignment (co)polymer materials and methods for formation are also disclosed.

Liquid crystal composition, liquid crystal display device, and method for producing liquid crystal display device

The present invention provides a liquid crystal composition making it possible to shorten cycle times and obtain excellent display quality, while also providing a liquid crystal device in which the liquid crystal composition is used, and a method for producing the liquid crystal display device. This liquid crystal composition contains a liquid crystal material and at least one radically polymerizable monomer, at least one of the radically polymerizable monomers being a compound having a structure for generating a radical by a self-cleavage reaction caused by light irradiation, and having at least two radically polymerizable groups.

LIQUID CRYSTAL DISPLAY DEVICE

Liquid crystal composition and liquid crystal display including the same

Process of producing light-reflective film and light-reflective film

A process for producing a light-reflective film is disclosed. The process comprises (a) applying a curable liquid crystal composition to a first film having a thickness of d 1 ; (b) drying the applied curable liquid crystal composition to form a cholesteric liquid crystal phase; (c) carrying out a curing reaction of the curable liquid crystal composition and fixing the cholesteric liquid crystal phase to form a lower layer; (d) repeating the set of the steps (a)-(c) three or more times on the lower layer to form a light-reflective multilayer having four or more layers of a fixed cholesteric liquid crystal phase; and (e) transferring the light-reflective multilayer, formed on the first film, onto a second film having a thickness of d 2 which is smaller than d 1 ; wherein the first film, fulfilling the condition of formula (1), is used. ( d 1 ) 2 × ( Y 1 ) ( d 3 ) × ( 1 - P 1 ) ≧ 0.0002 ( 1 )

Liquid crystal alignment agent and liquid crystal alignment film formed therefore and manufacturing method thereof

The present invention provides a free radical polymerizable liquid crystal alignment agent having superior coating ability, a manufacturing method, which comprises the process of coating the liquid crystal alignment agent onto a substrate, carrying out dehydration/ring-closure and free radical polymerization, enables obtaining a liquid crystal alignment film with superior reliability, superior voltage holding ratio and easy control of pretilt angle, and enables the manufacture of a liquid crystal display element provided with a liquid crystal alignment film. The free radical polymerizable liquid crystal alignment agent comprises a molecular compound containing at least 2 polymerizable maleamic acid groups and an organic solvent.

Liquid crystal display and method for manufacturing the same

A liquid crystal display including a first substrate and a second substrate facing each other, a first alignment layer disposed on the first substrate, the first alignment layer including a vertical photo-alignment material, a second alignment layer disposed on the second substrate, the second alignment layer including a vertical alignment material, and a liquid crystal layer disposed between the first substrate and the second substrate.

Photoaligning material with lateral substitution

The present invention relates to photoaligning material with lateral substitution, compositions thereof, and its use for optical and electro optical devices, especially liquid crystal devices (LCDs).

Liquid crystal display and method of manufacturing the same

A liquid crystal display includes a first substrate, a second substrate, and a liquid crystal layer disposed between the first substrate and the second substrate. The first substrate includes a first base substrate, a pixel electrode disposed on the first base substrate and including a plurality of branch portions, and a first alignment layer disposed on the pixel electrode. The second substrate includes a second base substrate, a common electrode disposed on the second base substrate, and a second alignment layer disposed on the common electrode.

Liquid crystalline media and liquid crystal displays with a polymer-stabilized homeotropic orientation

The present invention relates to liquid-crystal displays (LC displays) with polymer-stabilised, homeotropic (vertical) alignment of the liquid-crystalline medium (LC medium) without conventional imide alignment layers. The LC medium according to the invention comprises particles having a mass of at least 450 Da which have been functionalised by a polar, organic anchor group.

ALIGNMENT LAYER, LIQUID CRYSTAL DISPLAY DEVICE, AND METHOD FOR MANUFACTURING THE SAME

An alignment layer, a liquid crystal display device, and a method for manufacturing the same. The alignment layer includes a first substance for forming a first main chain and a second substance for forming a second main chain on a substrate. The first substance is bonded to photocuring agents, and the second substance is bonded to vertical alignment groups. The photocuring agents are crosslinked to each other and are aligned at a pretilt angle with respect to the substrate. The vertical alignment groups are aligned substantially vertically to the substrate. The first and second substances are different from each other. 1. An alignment layer comprising:a first main chain comprising a first substance and photocuring agents bonded to the first substance on a substrate; anda second main chain disposed on the substrate and comprising a second substance and vertical alignment groups bonded to the second substance,wherein the photocuring agents are crosslinked to each other and aligned at a pretilt angle with respect to the substrate, the vertical alignment groups are aligned substantially vertically to the substrate, and the first and second substances are different from each other.2. The alignment layer as claimed in claim 1 , wherein the first substance comprises polyethylene.3. The alignment layer as claimed in claim 2 , wherein the second substance comprises polyimide.4. The alignment layer as claimed in claim 3 , further comprising a crosslinker.5. The alignment layer as claimed in claim 4 , wherein relative amounts of the first substance and the second substance vary along a thickness direction of the alignment layer.6. The alignment layer as claimed in claim 3 , wherein relative amounts of the first substance and the second substance vary along a thickness direction of the alignment layer.7. The alignment layer as claimed in claim 2 , further comprising a crosslinker.8. The alignment layer as claimed in claim 7 , wherein relative amounts of the first substance and ...

LIQUID-CRYSTALLINE MEDIUM AND LIQUID-CRYSTAL DISPLAYS

The present invention relates to liquid-crystal media and liquid-crystal displays (LC displays) comprising these media with homeotropic (vertical) alignment of the liquid-crystalline medium (LC medium). The LC medium having positive dielectric anisotropy according to the invention comprises particles having a mass of at least 450 Da which have been functionalised by a polar, organic anchor group. It is preferably stabilised by a polymerisable component. 1. LC medium comprising a low-molecular-weight liquid-crystalline component having positive dielectric anisotropy with a value Δ∈≧1.5 and a component (N) comprising particles having a mass of at least 450 Da , where the particles contain one or more organic polar anchor groups.2. LC medium according to claim 1 , characterised in that it comprises a polymerisable or polymerised component claim 1 , where the polymerised component is obtainable by polymerisation of a polymerisable component.3. LC medium according to claim 1 , characterised in that component (N) consists of dissolved or dispersed particles.4. LC medium according to claim 1 , characterised in that the particles of component (N) have a side ratio d/dof at most 3:1.5. LC medium according to claim 1 , characterised in that the particles of component (N) are organic molecules.6. LC medium according to claim 1 , characterised in that the particles of component (N) are organic/inorganic hybrid particles.7. LC medium according to claim 1 , characterised in that component (N) comprises silsesquioxane compounds.8. LC medium according to claim 1 , characterised in that the particles of component (N) have been functionalised by one or more anchor groups containing at least one or more heteroatoms selected from the elements N claim 1 , O claim 1 , S and P.10. LC medium according to claim 1 , characterised in that the particles of component (N) each have precisely one anchor group.11. LC medium according to claim 1 , characterised in that it comprises the particles of ...

LIQUID CRYSTAL COMPOSITION, LIQUID CRYSTAL ELEMENT, AND LIQUID CRYSTAL DISPLAY DEVICE

A novel liquid crystal composition that can be used for a variety of liquid crystal devices is provided. A stable liquid crystal element that is driven at low voltage and that withstands physical impact is provided with the use of the novel liquid crystal composition. A highly reliable liquid crystal display device with low power consumption and high display quality is provided with the use of the liquid crystal element. The liquid crystal composition exhibits a blue phase and contains nematic liquid crystal, 1,4:3,6-dianhydro-2,5-bis[4-(n-hexyl-1-oxy)benzoic acid]sorbitol (abbreviation: ISO-(6OBA)) represented by the structural formula (100) as a first chiral agent, and (4R,5R)-4,5-bis[hydroxy-di(phenanthren-9-yl)methyl]-2,2-dimethyl-1,3-dioxolane (abbreviation: R-DOL-Pn) represented by the structural formula (101) as a second chiral agent. 2. The liquid crystal composition according to further containing a polymerizable monomer and a polymerization initiator.3. The liquid crystal composition according to exhibiting a blue phase.4. The liquid crystal composition according to having a temperature range within which a blue phase appears higher than 3.9° C. and lower than 5.1° C.5. The liquid crystal composition according to having a helical twisting power of 80 μmor higher.7. The liquid crystal element according to further containing a polymer between the first substrate and the second substrate.8. The liquid crystal element according to claim 6 , wherein the liquid crystal composition exhibits a blue phase.9. The liquid crystal element according to claim 6 , wherein the liquid crystal composition has a temperature range within which a blue phase appears higher than 3.9° C. and lower than 5.1° C.10. The liquid crystal element according to claim 6 , wherein the liquid crystal composition has a helical twisting power of 80 μmor higher.11. The liquid crystal element according to claim 6 , wherein a blue phase keeps appearing after a pressing force endurance test.12. The ...

COMPOSITION FOR FORMING LIQUID CRYSTAL LAYER, LIQUID CRYSTAL DISPLAY DEVICE, AND METHOD FOR PRODUCING LIQUID CRYSTAL DISPLAY DEVICE

The present invention provides a composition for forming a liquid crystal layer which enables to achieve takt time reduction and high display quality. The liquid crystal display device according to the present invention includes a liquid crystal material, and a monomer, the monomer being a compound having a structure that generates ketyl radicals when undergoing a hydrogen abstraction reaction caused by exposure to light. 1. A composition for forming a liquid crystal layer comprisinga liquid crystal material, anda monomer,the monomer being a compound having a structure that generates ketyl radicals when undergoing a hydrogen abstraction reaction caused by exposure to light.3. The composition for forming a liquid crystal layer according to claim 2 ,wherein the m is 1.6. The composition for forming a liquid crystal layer according to claim 2 ,{'sup': '1', 'wherein the Pis an acryloyloxy group, a methacryloyloxy group, a vinyl group, a vinyloxy group, an acryloylamino group, or a methacryloylamino group.'}7. The composition for forming a liquid crystal layer according to claim 1 , further comprising at least one monomer that contains a monofunctional or polyfunctional polymerizable group having a ring structure.8. The composition for forming a liquid crystal layer according to claim 7 , {'br': None, 'sup': 2', '2', '4', '3', '4', '3, 'sub': p', 'n, 'P—S—R-A-(Z-A)R\u2003\u2003(3)'}, 'wherein the monomer that contains a monofunctional or polyfunctional polymerizable group having a ring structure is a compound represented by the following formula (3){'sup': 3', '4', '2', '2, 'sub': 2', '5, 'wherein Ris a —R—Sp-Pgroup, a hydrogen atom, a halogen atom, a —CN group, a —NOgroup, a —NCO group, a —NCS group, an —OCN group, a —SCN group, a —SFgroup, or a C1-C12 linear or branched alkyl group;'}{'sup': '2', 'Pis a polymerizable group;'}{'sup': '2', 'Spis a C1-C6 linear, branched, or cyclic alkylene or alkyleneoxy group, or a direct bond;'}{'sup': '3', 'a hydrogen atom in Rmay be ...

Display device

According to one embodiment, a display device includes a first substrate unit, a second substrate unit, a display layer, and a sealing portion. The first substrate unit includes a first substrate, a display electrode, a terminal portion, and a first insulating layer. The first substrate has a first major surface. The first major surface has a display region and a peripheral region. The display electrode is provided in the display region. The terminal portion is provided in the peripheral region and electrically connected to the display electrode. The first insulating layer is provided on the display and peripheral regions. The second substrate unit faces the first major surface. The display layer is provided between the display electrode and the second substrate unit. The sealing portion is provided between the first and second substrate units. The sealing portion surrounds the display layer and contacts the first insulating layer.

LIQUID CRYSTAL ALIGNMENT AGENT, AND LIQUID CRYSTAL ALIGNMENT FILM AND LIQUID CRYSTAL DISPLAY ELEMENT FORMED FROM THE LIQUID CRYSTAL ALIGNMENT AGENT

A liquid crystal alignment agent including a polymer composition and a solvent. The polymer composition is obtained by subjecting a mixture including a tetracarboxylic dianhydride component, a multi-amine component of formula (I) defined herein, and a diamine component to a reaction. The diamine component includes a diamine compound of formula (II) defined herein. 2. The liquid crystal alignment agent as claimed in claim 1 , wherein said multi-amine component of formula (I) is in an amount ranging from 1 mole to 10 moles and said diamine compound of formula (II) is in an amount ranging from 5 moles to 70 moles based on 100 moles of a combination of said multi-amine component of formula (I) and said diamine component.3. The liquid crystal alignment agent as claimed in claim 1 , wherein a molar ratio of said diamine compound of formula (II) to said multi-amine component of formula (I) ranges from 3 to 50.4. The liquid crystal alignment agent as claimed in claim 3 , wherein said molar ratio of said diamine compound of formula (II) to said multi-amine component of formula (I) ranges from 5 to 40.5. The liquid crystal alignment agent as claimed in claim 4 , wherein said molar ratio of said diamine compound of formula (II) to said multi-amine component of formula (I) ranges from 10 to 30.6. The liquid crystal alignment agent as claimed in claim 1 , wherein said polymer composition has an imidization ratio ranging from 30% to 80%.7. The liquid crystal alignment agent as claimed in claim 1 , having a viscosity at 25° C. ranging from 15 cps to 40 cps.8. A liquid crystal alignment film formed from the liquid crystal alignment agent as claimed in .9. A liquid crystal display element claim 8 , comprising the liquid crystal alignment film as claimed in . This application claims priority of Taiwanese Application No. 101114528, filed on Apr. 24, 2012.1. Field of the InventionThis invention relates to a liquid crystal alignment agent, more particularly to a liquid crystal alignment ...

LIQUID CRYSTAL ALIGNMENT AGENT, LIQUID CRYSTAL DISPLAY, AND METHOD FOR MANUFACTURING LIQUID CRYSTAL DISPLAY

The present invention provides a liquid crystal alignment agent capable of preventing a decrease in voltage holding ratio (VHR), a liquid crystal display containing such a liquid crystal alignment agent, and a method for manufacturing such a liquid crystal display. Aspects of the present invention include a liquid crystal alignment agent containing at least one polymer selected from a polyamic acid and an imide polymer thereof and at least one difunctional monomer having an anthracene or phenanthrene structure, a liquid crystal display including an alignment film formed on at least one of an active substrate and a counter substrate using the above liquid crystal alignment agent, and a method for manufacturing a liquid crystal display including the steps of forming an active substrate and forming a counter substrate, at least one of which includes forming an alignment film on the active substrate or the counter substrate using the above liquid crystal alignment agent. 2. The liquid crystal alignment agent according to claim 1 , wherein in general formula (I) claim 1 , n=0 claim 1 , Pand Pare the same or different and are acrylate or methacrylate claim 1 , and Ais the polycyclic aromatic hydrocarbon represented by formula (1) or (6).3. The liquid crystal alignment agent according to claim 1 , wherein the at least one polymer aligns a liquid crystal perpendicularly.4. The liquid crystal alignment agent according to claim 1 , wherein the at least one polymer has a photoreactive functional group.5. The liquid crystal alignment agent according to claim 4 , wherein the photoreactive functional group is one of chalcone claim 4 , cinnamate claim 4 , azo claim 4 , and coumarin.6. The liquid crystal alignment agent according to claim 1 , wherein the weight percentage of the at least one difunctional monomer to the at least one polymer is more than 5% and is less than 20%.8. The liquid crystal display according to claim 7 , wherein in general formula (I) claim 7 , n=0 claim 7 , ...

LIQUID CRYSTAL DISPLAY DEVICE

A liquid crystal display device includes: a pair of substrates, at least one of which is transparent; a liquid crystal layer placed between the pair of substrates; an electrode group, formed on at least one of the pair of substrates, for applying an electric field to the liquid crystal layer; and an alignment control film placed on at least one of the pair of substrates, in which the alignment control film is formed of polyimide and a precursor of the polyimide, each of the polyimide and the precursor of the polyimide contains, as a material, a specific cyclobutanetetracarboxylic acid dianhydride derivative and aromatic diamine, and the alignment control film is provided with alignment capability by photo-alignment treatment. 1a pair of substrates, at least one of which is transparent;a liquid crystal layer placed between the pair of substrates;an electrode group, formed on at least one of the pair of substrates, for applying an electric field to the liquid crystal layer; andan alignment control film placed on at least one of the pair of substrates,wherein the alignment control film is formed of polyimide and a precursor of the polyimide,each of the polyimide and the precursor of the polyimide being obtained from a cyclobutanetetracarboxylic acid dianhydride derivative represented by the following chemical formula (1) and aromatic diamine as reactants, andthe alignment control film is provided with alignment capability by photo-alignment treatment:. A liquid crystal display device, comprising:wherein the aromatic diamine contains at least one kind of aromatic diamines selected from a compound group represented by the following chemical formulae (102), (103), (104), (105), (106), (109) and (110):where at least one of Zto Zis a substituent represented by —NR, —SR, —OH, —COR, —(CH)—COOR, —CN, or —NO(R's each independently represent a hydrogen atom or an alkyl group having a carbon number of 1 to 4, and n represents an integer of 0 to 2), and the others are hydrogen ...

LIQUID CRYSTAL ALIGNMENT FILM AND LIQUID CRYSTAL ALIGNMENT ELEMENT USING THE SAME

The present invention provides a free radical polymerizable liquid crystal alignment agent having superior coating ability, a manufacturing method, which comprises the process of coating the liquid crystal alignment agent onto a substrate, and processing the liquid crystal alignment agent with dehydration/ring-closure reaction and free radical polymerization, enables obtaining a liquid crystal alignment film with superior reliability, superior voltage holding ratio and easy control of pretilt angle, and enables the manufacture of a liquid crystal display element provided with a liquid crystal alignment film. The free radical polymerizable liquid crystal alignment agent comprises a molecular compound containing at least 2 polymerizable maleamic acid groups and an organic solvent. 2. The liquid crystal alignment film as claimed in claim 1 , wherein said crosslinked structure is obtained from a free radical polymerization of molecular compound containing at least 2 polymerizable maleamic acid groups (A).3. The liquid crystal alignment film as claimed in claim 2 , wherein said free radical polymerization is conducted on the C═C double bonds of maleimide groups of said molecular compound containing at least 2 polymerizable maleamic acid groups (A) formed through dyhydration/ring-closure reactions.4. The liquid crystal alignment film as claimed in claim 2 , wherein said molecular compound containing at least 2 polymerizable maleamic acid groups (A) is obtained from a reaction between maleic anhydride derivatives and multiple amino group compounds.6. The liquid crystal display element as claimed in claim 5 , wherein said crosslinked structure is obtained from a free radical polymerization of molecular compound containing at least 2 polymerizable maleamic acid groups (A).7. The liquid crystal display element as claimed in claim 5 , wherein said free radical polymerization is conducted on the C═C double bonds of maleimide groups of said molecular compound containing at least ...

LIQUID-CRYSTAL DISPLAYS HAVING HOMEOTROPIC ALIGNMENT

The present invention relates to liquid-crystalline media (LC media) comprising self-aligning additives which effect homeotropic (vertical) alignment of the LC media at a surface or the cell walls of a liquid-crystal display (LC display). The invention therefore also encompasses LC displays having homeotropic alignment of the liquid-crystalline medium (LC medium) without conventional imide alignment layers. The LC media are optionally supplemented by a polymerisable or polymerised component, which serves for stabilisation of the alignment, for adjustment of the tilt angle and/or as passivation layer. 1. LC medium comprising a low-molecular-weight liquid-crystalline component and one or more organic compounds , where the organic compound contains at least one polar anchor group and at least one long-chain non-polar radical having at least 8 C atoms.2. LC medium according to claim 1 , characterised in that it additionally comprises a polymerisable or polymerised component claim 1 , where the polymerised component is obtainable by polymerisation of a polymerisable component.3. LC medium according to claim 1 , characterised in that the long-chain non-polar radical encompasses an aliphatic hydrocarbon radical claim 1 , which is optionally unsaturated or halogenated by F and/or Cl and in which one or more non-adjacent and non-terminal CHgroups may be replaced by —O— claim 1 , —(CO)— or an ester group and in which one CHgroup may be replaced by a cycloalkylene group having 3 to 8 C atoms.4. LC medium according to claim 1 , characterised in that the polar anchor group of the organic compound contains at least one OH structure or an N atom in a primary or secondary or tertiary amino group.8. LC medium according to claim 1 , characterised in that claim 1 , for the compound of the formula I claim 1 ,{'sup': '1', 'Rdenotes an alkyl group having 8 to 20 C atoms.'}9. LC medium according to claim 1 , characterised in that it comprises the organic compound containing at least one ...

Polymer/liquid crystal composite and liquid crystal display device including the same

The occurrence of a defective orientation of a polymer/liquid crystal composite is suppressed. In addition, the occurrence of defective display of a liquid crystal display device including the polymer/liquid crystal composite is suppressed. In the polymer/liquid crystal composite exhibiting a blue phase, a plurality of domains are included and defective orientations easily occur at boundaries between the domains. Thus, by lowering orientation periodicities at boundaries between the domains, a defect-free orientation to high orientation periodicities at the boundary between adjacent domains can be obtained. Specifically, the polymer/liquid crystal composite exhibiting the blue phase includes the plurality of domains each of which has a size of 3 μm or less.

LIQUID CRYSTAL COMPOSITION, METHOD OF FORMING AN OPTICALLY ISOTROPIC PHASE OF A LIQUID CRYSTAL, AND LIQUID CRYSTAL DISPLAY DEVICE INCLUDING THE SAME

A liquid crystal composition including about 70 percent by weight to about 98 percent by weight of a liquid crystal molecule; and about 2 percent by weight to about 30 percent by weight of a hydrogel agent, each based on a total weight of the liquid crystal composition. 1. A liquid crystal composition comprising:about 70 percent by weight to about 98 percent by weight of a liquid crystal molecule; andabout 2 percent by weight to about 30 percent by weight of a hydrogel agent, each based on a total weight of the liquid crystal composition.2. The liquid crystal composition of claim 1 , wherein the liquid crystal molecule comprises at least one selected from a nematic liquid crystal claim 1 , a smectic liquid crystal and a cholesteric liquid crystal.3. The liquid crystal composition of claim 1 , wherein the hydrogel agent comprises an alkylamide compound.5. The liquid crystal composition of claim 3 , wherein the hydrogel agent comprises a hydroxyalkylamide compound.7. The liquid crystal composition of claim 1 , further comprising less than about 20 percent by weight of a chiral dopant claim 1 , based on a total weight of the liquid crystal composition.8. A method of forming an optically isotropic phase of a liquid crystal claim 1 , the method comprising:heating a liquid crystal composition comprisingabout 70 percent by weight to about 98 percent by weight of a liquid crystal molecule, andabout 2 percent by weight to about 30 percent by weight of a hydrogel agent, each based on a total weight of the liquid crystal composition; andcooling the liquid crystal composition to form the optically isotropic phase of the liquid crystal.9. The method of claim 8 , wherein the liquid crystal composition is heated at a temperature of equal to or greater than a phase transition temperature of the liquid crystal composition.10. The method of claim 9 , wherein the temperature of the heated liquid crystal composition is about 80° C. to 130° C.11. The method of claim 8 , wherein the ...

PHOTOALIGNMENT OF MATERIALS INCLUDING LIQUID CRYSTALS

Embodiments described herein relate to compositions, devices, and methods for the alignment of certain materials including liquid crystals. In some cases, a photoresponsive material include a moiety capable of undergoing a di-pi-methane rearrangement. Methods described herein may provide chemically and/or thermally stable alignment materials for use in a various technologies, including transistors, luminescent devices, and liquid crystal devices. 1. A polymer , comprising:{'sup': '3', 'a photoreactive species comprising an sp-hybridized carbon covalently bonded to at least two carbon-carbon double bond groups, wherein the photoreactive species is able to undergo a di-pi-methane rearrangement upon exposure to electromagnetic radiation.'}224-. (canceled)25. A device , comprising:an anisotropic material; and{'sup': '3', 'a photoreactive material in contact with the anisotropic material, the photoreactive material comprising a species comprising an sp-hybridized carbon covalently bonded to at least two carbon-carbon double bond groups, wherein the species undergoes a di-pi-methane rearrangement upon exposure to electromagnetic radiation.'}2628-. (canceled)3049-. (canceled)50. A device , comprising:an anisotropic material; andan alignment material comprising a photoproduct of a di-pi-methane rearrangement in physical contact with the anisotropic material.5153-. (canceled)54. A method , comprising:{'sup': '3', 'providing a polymer comprising a photoreactive species comprising an sp-hybridized carbon covalently bonded to at least two carbon-carbon double bond groups; and'}exposing the polymer to electromagnetic radiation under conditions sufficient to promote a di-pi-methane rearrangement, thereby forming a photoproduct.5568-. (canceled)69. A method for alignment of an anisotropic material , comprising:exposing a material comprising a photoreactive species to electromagnetic radiation to produce a photoproduct via a di-pi-methane rearrangement of the photoreactive species; ...

POLYMERIZABLE COMPOUND-CONTAINING LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL DISPLAY DEVICE USING THE SAME

A polymerizable compound-containing liquid crystal composition of the present invention relates to a liquid crystal composition containing a polymerizable compound represented by general formula (I) and a compound represented by general formula (II) and can be used for a liquid crystal display device imparted with liquid crystal aligning ability by polymerization. The polymerizable liquid crystal composition is required to cause no precipitation in a wide temperature range and have a low viscosity corresponding to fast switching, and a liquid crystal display device using the composition is required to have more stable alignment after polymerization and to cause no defect in display characteristics. In the present invention, the problems can be solved using a specified compound. 117-. (canceled)19. The polymerizable compound-containing liquid crystal composition according to claim 18 , where comprising a polymerizable compound represented by general formula (I-1) as the first component.20. The polymerizable compound-containing liquid crystal composition according to claim 18 , wherein in the general formula (I-1) to the general formula (I-4) claim 18 , Rand Rare each independently formula (R-1) or (R-2).21. The polymerizable compound-containing liquid crystal composition according to claim 18 , wherein in the general formula (I-1) to the general formula (I-4) claim 18 , Rand Rare each formula (R-2).26. The polymerizable compound-containing liquid crystal composition according to claim 18 , wherein the content of the compound represented by the general formula (I-1) to the general formula (I-4) is 0.01% by mass to 2.0% by mass.27. The polymerizable compound-containing liquid crystal composition according claim 18 , wherein the content of the compound represented by the general formula (II) is 5% by mass to 35% by mass.28. The polymerizable compound-containing liquid crystal composition according to claim 18 , wherein the content of the compound represented by the ...

LIQUID-CRYSTALLINE MEDIUM

The present invention relates to a liquid-crystalline medium, characterised in that it contains 6. A liquid-crystalline medium according to claim 1 , wherein the proportion of the compounds of formula I in the mixture as a whole is from 2 to 30% by weight based on the total mixture.7. A liquid-crystalline medium according to claim 1 , which contains <5% by weight of a polymerizable compound based on the liquid crystalline mixture.8. A method of achieving an electro-optical effect comprising applying an electric signal to a liquid crystalline medium of .9. An electro-optical liquid-crystal display containing a liquid-crystalline medium according to .10. An electro-optical liquid-crystal display according to claim 9 , which is a TN claim 9 , TN-TFT claim 9 , FFS or IPS display.11. A liquid-crystalline medium according to claim 3 , wherein Pand Pdenote acrylate or methacrylate.13. A liquid-crystalline medium according to claim 3 , wherein P denotes vinyloxy claim 3 , acrylate claim 3 , methacrylate claim 3 , fluoroacrylate claim 3 , chloroacrylate claim 3 , oxetane or epoxide.14. A liquid-crystalline medium according to claim 3 , wherein Zis —CFO—.15. A liquid-crystalline medium according to claim 3 , wherein Zis a single bond.16. A liquid-crystalline medium according to claim 3 , wherein L is F.17. A liquid-crystalline medium according to claim 3 , wherein Ris n-alkyl claim 3 , n-alkoxy claim 3 , n-oxaalkyl claim 3 , n-fluoroalkyl claim 3 , n-fluoroalkoxy or n-alkenyl claim 3 , each having up to 6 carbon atoms. The present invention relates to a liquid-crystalline medium containing at least one polymerisable compound, to the use thereof for electro-optical purposes, and to display devices containing this medium.Liquid crystals are used principally as dielectrics in display devices, since the optical properties of such substances can be modified by an applied voltage. Electro-optical devices based on liquid crystals are extremely well known to the person skilled in the ...

LIQUID-CRYSTALLINE MEDIUM

The present invention relates to a liquid-crystalline medium, characterised in that it contains 6. A liquid-crystalline medium according to claim 1 , wherein the proportion of the compounds of formula I in the mixture as a whole is from 2 to 30% by weight based on the total mixture.7. A liquid-crystalline medium according to claim 1 , which contains <5% by weight of a polymerizable compound based on the liquid crystalline mixture.8. A method of achieving an electro-optical effect comprising applying an electric signal to a liquid crystalline medium of .9. An electro-optical liquid-crystal display containing a liquid-crystalline medium according to .10. An electro-optical liquid-crystal display according to claim 9 , which is a TN claim 9 , TN-TFT claim 9 , FFS or IPS display.11. A liquid-crystalline medium according to claim 3 , wherein Pand Pdenote acrylate or methacrylate.13. A liquid-crystalline medium according to claim 3 , wherein P denotes vinyloxy claim 3 , acrylate claim 3 , methacrylate claim 3 , fluoroacrylate claim 3 , chloroacrylate claim 3 , oxetane or epoxide.14. A liquid-crystalline medium according to claim 3 , wherein Zis —CFO—.15. A liquid-crystalline medium according to claim 3 , wherein Zis a single bond.16. A liquid-crystalline medium according to claim 3 , wherein L is F.17. A liquid-crystalline medium according to claim 1 , wherein Ris n-alkyl claim 1 , n-alkoxy claim 1 , n-oxaalkyl claim 1 , n-fluoroalkyl claim 1 , n-fluoroalkoxy or n-alkenyl claim 1 , each having up to 6 carbon atoms and Xis F claim 1 , Cl claim 1 , CF claim 1 , OCFor OCHF.18. A liquid-crystalline medium according to claim 1 , which contains a compound of formula IX to XV.19. A liquid-crystalline medium according to claim 1 , which contains a compound of formula XVI to XX.20. A liquid-crystalline medium according to claim 1 , which contains a compound of formula XXIII. The present invention relates to a liquid-crystalline medium containing at least one polymerisable compound ...

LIQUID-CRYSTALLINE MEDIUM

The present invention relates to a liquid-crystalline medium, characterised in that it contains 6. A liquid-crystalline medium according to claim 1 , wherein the proportion of the compounds of formula I in the mixture as a whole is from 2 to 30% by weight based on the total mixture.7. A liquid-crystalline medium according to claim 1 , which contains <5% by weight of a polymerizable compound based on the liquid crystalline mixture.8. A method of achieving an electro-optical effect comprising applying an electric signal to a liquid crystalline medium of .9. An electro-optical liquid-crystal display containing a liquid-crystalline medium according to .10. An electro-optical liquid-crystal display according to claim 9 , which is a TN claim 9 , TN-TFT claim 9 , FFS or IPS display.11. A liquid-crystalline medium according to claim 3 , wherein Pand Pdenote acrylate or methacrylate.13. A liquid-crystalline medium according to claim 3 , wherein P denotes vinyloxy claim 3 , acrylate claim 3 , methacrylate claim 3 , fluoroacrylate claim 3 , chloroacrylate claim 3 , oxetane or epoxide.14. A liquid-crystalline medium according to claim 3 , wherein Zis —CFO—.15. A liquid-crystalline medium according to claim 3 , wherein Zis a single bond.16. A liquid-crystalline medium according to claim 3 , wherein L is F.17. A liquid-crystalline medium according to claim 1 , wherein Ris n-alkyl claim 1 , n-alkoxy claim 1 , n-oxaalkyl claim 1 , n-fluoroalkyl claim 1 , n-fluoroalkoxy or n-alkenyl claim 1 , each having up to 6 carbon atoms.18. A liquid-crystalline medium according to claim 1 , which contains a compound of formula XXIV-1.19. A liquid-crystalline medium according to claim 1 , which contains a compound of formula XXIV-2.20. A liquid-crystalline medium according to claim 1 , which contains a compound of formula XXIV-3 or XXIV-4. The present invention relates to a liquid-crystalline medium containing at least one polymerisable compound, to the use thereof for electro-optical purposes, ...

MANUFACTURING METHOD OF LIQUID CRYSTAL ALIGNMENT FILM AND LIQUID CRYSTAL ALIGNMENT ELEMENT

The present invention provides a free radical polymerizable liquid crystal alignment agent having superior coating ability, a manufacturing method, which comprises the process of coating the liquid crystal alignment agent onto a substrate, and processing the liquid crystal alignment agent with dehydration/ring-closure reaction and free radical polymerization, enables obtaining a liquid crystal alignment film with superior reliability, superior voltage holding ratio and easy control of pretilt angle, and enables the manufacture of a liquid crystal display element provided with a liquid crystal alignment film. The free radical polymerizable liquid crystal alignment agent comprises a molecular compound containing at least 2 polymerizable maleamic acid groups and an organic solvent. 2. The method as claimed in claim 1 , wherein said free radical polymerization is conducted on the C═C double bonds of maleimide groups of said molecular compound containing at least 2 polymerizable maleamic acid groups (A) formed through dyhydration/ring-closure reactions.3. The method as claimed in claim 1 , wherein said molecular compound containing at least 2 polymerizable maleamic acid groups (A) is obtained from a reaction between maleic anhydride derivatives and multiple amino group compounds. This application is a continuation-in-part application of and claims the priority benefit of U.S. patent application Ser. No. 13/373,402, filed on Nov. 14, 2011. This prior application Ser. No. 13/373,402 is a divisional application of U.S. application Ser. No. 12/382,098, filed on Mar. 9, 2009 and claims the priority benefit of Taiwan application serial no. 097109435, filed on Mar. 18, 2008 and Taiwan application serial no. 098104483, filed on Feb. 12, 2009. The entirety of each of the above-mentioned patent applications is hereby incorporated by reference herein and made a part of this specification.1. Field of the InventionThe present invention relates to a novel liquid crystal alignment ...

LIQUID CRYSTAL ELEMENT AND LIQUID CRYSTAL COMPOSITION

A liquid crystal element which comprises: a pair of substrates with electrodes, in which the substrates are arranged so as to face each other and at least one of the substrates is a transparent substrate; and a liquid crystal light adjusting layer which is disposed between the substrates and contains a composite containing a chiral nematic liquid crystal phase and a polymer resin phase, wherein the polymer resin phase contains a polymer compound having a specific repeating unit, and dielectric constant anisotropy of the chiral nematic liquid crystal phase is positive. 3. The liquid crystal element according to claim 2 , wherein the compound represented by the above general formula (3) is detected in an amount of 0.10 mg or more and 0.85 mg or less by derivatization pyrolytic gas chromatography of 1.00 mg of the polymer resin phase in the presence of an organic alkali derivatizing agent.6. The liquid crystal element according to claim 1 , wherein distance (d) between the substrates with electrodes is 100 μm or less and 2 μm or more and the relationship (d)/(p) between the chiral pitch length (p) of the chiral nematic liquid crystal and the distance (d) is 1 or more.7. The liquid crystal element according to claim 1 , wherein the liquid crystal light adjusting layer is a polymer stabilized liquid crystal.8. The liquid crystal element according to claim 1 , wherein claim 1 , the liquid crystal element has a region where visible light transmittance at the time when at least one of direct-current voltage or alternative-current voltage is applied claim 1 , decreases as compared with the visible light transmittance at the time when the voltage is not applied.9. The liquid crystal element according to claim 1 , wherein haze at the time when at least one of direct-current voltage or alternative-current voltage is applied is 70% or more and haze at the time when voltage is not applied is 15% or less.10. The liquid crystal element according to claim 1 , wherein claim 1 , in ...

LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL DISPLAY DEVICE

A liquid crystal composition that satisfies at least one of characteristics such as a high maximum temperature of a nematic phase, a low minimum temperature of a nematic phase, a small viscosity, a suitable optical anisotropy, a large negative dielectric anisotropy, a large specific resistance, a high stability to ultraviolet light and a high stability to heat or that is suitably balanced between at least two of the characteristics, is described. The liquid crystal composition includes a compound having three or more polymerizable groups as a first component and a compound having one or two polymerizable groups as a second component in a suitable ratio, and that may include a specific compound having a large negative dielectric anisotropy and a low minimum temperature as a third component or a specific compound having a small viscosity or a high maximum temperature as a fourth component. 1. A liquid crystal composition having a nematic phase and including at least one compound selected from the group of compounds having three or more polymerizable groups as a first component and at least one compound selected from the group of compounds having one polymerizable group and compounds having two polymerizable groups as a second component.6. The liquid crystal composition according to claim 1 , wherein the ratio of the first and second components in total is in the range of 0.03 part by weight to 10 parts by weight based on the liquid crystal composition claim 1 , excluding the first and second components.10. The liquid crystal composition according to claim 1 , further including at least one compound selected from the group of compounds represented formula (4) as a fourth component:{'sup': 7', '8', '7', '8, 'wherein Rand Rare independently alkyl having 1 to 12 carbons, alkoxy having 1 to 12 carbons, alkenyl having 2 to 12 carbons or alkenyl having 2 to 12 carbons in which at least one hydrogen has been replaced by fluorine; ring K, ring L and ring M are independently 1, ...

Polymerizable monomer and liquid crystal material applied to display panel

A polymerizable monomer adopted to a display panel is represented as following chemical formula: wherein, m≧0; “Z” is selected from oxygen, sulfur, carbonyl, caroboxyl, methyoxy, methylthio, thio, ethenylcarbonyl, carbonylethenyl, difluoromethoxy, difluoro methylthio, ethyl, difluoroethane, 1,2 difluoroethane, vinylene, difluoroethenylene, ethynyl, or single bond. “X 1 ” and “X 2 ” are independently selected from oxygen, sulfur, methyoxy, carbonyl, caroboxyl, -carbamoyl, methylthio, ethenylcarbonyl, carbonylethenyl, or single bond. “Sp 1 ” and “Sp 2 ” are independently a spacer or single bond. “P 1 ” and “P 2 ” are independently a polymerizable group.

Mixture for Liquid Crystal Medium and Liquid Crystal Display Using the Same

The present invention provides a mixture for liquid crystal medium and a liquid crystal display using the same. The mixture for liquid crystal medium comprises: at least one anisotropic liquid crystal material and only one polymerizable monomer which will polymerize under UV irradiation. The weight percentage of the polymerizable monomer accounts for 0.1% to 1% of the total mixture for liquid crystal medium. In the mixture for liquid crystal medium and a liquid crystal display using the same according to the present invention, by using only one polymerizable monomer which will polymerize under UV irradiation and the appropriate content ratio, the polymer bump with small size and good uniformity can be obtained within the mixture for liquid crystal medium after the polymerization, which avoids the bad liquid crystal alignment and the light spot occurred at the dark state of the liquid crystal panel, and then increases the response rapid of the liquid crystal panel to obtain high contrast ratio and stable mass production.

Mixture for Liquid Crystal Medium and Liquid Crystal Display Using the Same

The present invention provides a mixture for liquid crystal medium and a liquid crystal display using the same. The mixture for liquid crystal medium comprises: at least one anisotropic liquid crystal material and a polymerizable monomer which will polymerize under UV irradiation. The weight percentage of the polymerizable monomer accounts for 0.1% to 1% of the total mixture for liquid crystal medium. In the mixture for liquid crystal medium and a liquid crystal display using the same according to the present invention, by using a polymerizable monomer which will polymerize under UV irradiation and the appropriate content ratio, the polymer bump with small size and good uniformity can be obtained within the mixture for liquid crystal medium after the polymerization, which avoids the bad liquid crystal alignment and the light spot occurred at the dark state of the liquid crystal panel, and then increases the response rapid of the liquid crystal panel to obtain high contrast ratio and stable mass production. 3. The mixture for liquid crystal medium as claimed in claim 2 , characterized in that any hydrogen on the aromatic ring in the structural formula of the polymerizable monomer may be substituted by the group of —F claim 2 , —Cl claim 2 , —Br claim 2 , methyl or —CN.9. The liquid crystal display as claimed in claim 8 , characterized in that any hydrogen on the aromatic ring in the structural formulas of the polymerizable monomer may be substituted by the group of —F claim 8 , —Cl claim 8 , —Br claim 8 , methyl or —CN. This application claims priority to Chinese Patent Application Serial No. 201210360685.1, named as “mixture for liquid crystal medium and liquid crystal display using the same”, filed on Sep. 21, 2012, the specification of which is incorporated herein by reference.1. Field of the InventionThe present invention relates to the field of liquid crystal display technology, and in particular to a mixture for liquid crystal medium and a liquid crystal ...

Mixture for Liquid Crystal Medium and Liquid Crystal Display Using the Same

The present invention provides a mixture for liquid crystal medium and a liquid crystal display using the same. The mixture for liquid crystal medium comprises: at least one anisotropic liquid crystal material and two polymerizable monomers which will polymerize under UV irradiation. The weight percentage of the polymerizable monomers accounts for 0.1% to 1% of the total mixture for liquid crystal medium. In the mixture for liquid crystal medium and a liquid crystal display using the same according to the present invention, by using two or more polymerizable monomers which will polymerize under UV irradiation and the appropriate content ratio, the polymer bump with small size and good uniformity can be obtained within the mixture for liquid crystal medium after the polymerization, which avoids the bad liquid crystal alignment and the light spot occurred at the dark state of the liquid crystal panel, and then increases the response rapid of the liquid crystal panel to obtain high contrast ratio and stable mass production. 1. A mixture for liquid crystal medium comprising: at least one liquid crystal material and two polymerizable monomers which will polymerize under UV irradiation , the liquid crystal material comprising an alkenyl compound which is stable to the polymerization reaction during the polymerization of the polymerizable monomers , the weight percentage of the polymerizable monomers accounting for 0.1% to 1% of the total mixture for liquid crystal medium; the structural formulas of the two polymerizable monomers composed of two benzene rings , wherein the structure comprising two benzene rings is formed by two benzene rings connected directly with each other , the benzene ring is directly connected with at least one polymerizable group , and the polymerizable groups on the two polymerizable monomers are all methacrylate group when they are different.3. The mixture for liquid crystal medium as claimed in claim 2 , characterized in that any hydrogen on the ...

Mixture for Liquid Crystal Medium and Liquid Crystal Display Using the Same

The present invention provides a mixture for liquid crystal medium and a liquid crystal display using the same. The mixture for liquid crystal medium comprises: at least one anisotropic liquid crystal material and two or more polymerizable monomers which will polymerize under UV irradiation. The weight percentage of the polymerizable monomers accounts for 0.1% to 1% of the total mixture for liquid crystal medium. In the mixture for liquid crystal medium and a liquid crystal display using the same according to the present invention, by using two or more polymerizable monomers which will polymerize under UV irradiation and the appropriate content ratio, the polymer bump with small size and good uniformity can be obtained within the mixture for liquid crystal medium after the polymerization, which avoids the bad liquid crystal alignment and the light spot occurred at the dark state of the liquid crystal panel, and then increases the response rapid of the liquid crystal panel to obtain high contrast ratio and stable mass production.

Mixture for Liquid Crystal Medium and Liquid Crystal Display Using the Same

The present invention provides a mixture for liquid crystal medium and a liquid crystal display using the same. The mixture for liquid crystal medium comprises: at least one anisotropic liquid crystal material and a polymerizable monomer which will polymerize under UV irradiation. The weight percentage of the polymerizable monomer accounts for 0.1% to 1% of the total mixture for liquid crystal medium. In the mixture for liquid crystal medium and a liquid crystal display using the same according to the present invention, by using a polymerizable monomer which will polymerize under UV irradiation and the appropriate content ratio, the polymer bump with small size and good uniformity can be obtained within the mixture for liquid crystal medium after the polymerization, which avoids the bad liquid crystal alignment and the light spot occurred at the dark state of the liquid crystal panel, and then increases the response rapid of the liquid crystal panel to obtain high contrast ratio and stable mass production. 2. The mixture for liquid crystal medium as claimed in claim 1 , characterized in that any hydrogen on the aromatic ring in the structural formula of the polymerizable monomer may be substituted by the group of —F claim 1 , —Cl claim 1 , —Br claim 1 , methyl or —CN.6. The liquid crystal display as claimed in claim 5 , characterized in that any hydrogen on the aromatic ring in the structural formulas of the polymerizable monomer may be substituted by the group of —F claim 5 , —Cl claim 5 , —Br claim 5 , methyl or —CN. This application claims priority to Chinese Patent Application Serial No. 201210360684.7, named as “mixture for liquid crystal medium and liquid crystal display using the same”, filed on Sep. 21, 2012, the specification of which is incorporated herein by reference.1. Field of the InventionThe present invention relates to the field of liquid crystal display technology, and in particular to a mixture for liquid crystal medium and a liquid crystal ...

LIQUID CRYSTAL DISPLAY DEVICE

A liquid crystal display device includes a TFT substrate having a first alignment film and an opposing substrate having a second alignment film with liquid crystals sandwiched therebetween. One of the first and second alignment films, comprises a first polyimide produced via polyamide acid ester containing cyclobutane as a precursor and a second polyimide produced via polyamide acid as a precursor. The polyamide acid has a higher polarity than that of the polyamide acid ester. The one of the first and second alignment films is responsive to photo-alignment. A first side of the one of the first and second alignment films is adjacent to the liquid crystals, and a second side thereof is closer to one of the TFT substrate and the counter substrate than the first side. The first side contains more of the first polyimide and less of the second polyimide than the second side. 1. A method for fabricating a liquid crystal display device including a TFT substrate having a photo-alignment film formed over a pixel electrode and a common electrode;an opposing substrate which faces the TFT substrate; anda liquid crystal layer sandwiched between the TFT substrate and the opposing substrate;whereinthe method comprising steps of:forming a mixture material that is a material of the photo-alignment film on the TFT substrate,imidizing the mixture material so that a precursor contained in the mixture material is imidized,irradiating a polyimide formed from the imidized precursor with ultraviolet light for photo-alignment without heating; andheating the polyimide to form the alignment film after the irradiation.2. The method for fabricating a liquid crystal display device according to claim 1 ,wherein an irradiance level of the ultraviolet light is from 2000 to 5000 mJ/cm2, a temperature at which the TFT substrate and the opposing substrate are heated after the ultraviolet light irradiation is not less than 230° C., and an interval after the ultraviolet light irradiation until heating ...

Polymerizable compound, composition, polymer, optically anisotropic body, liquid crystal display device, and organic el device

It is an object of the present invention to provide a polymerizable compound suitable as a material for optically anisotropic bodies having excellent optical properties, a composition containing the polymerizable compound, a polymer obtained by polymerizing the polymerizable compound, an optically anisotropic body formed of the polymer, and a liquid crystal display device including the optically anisotropic body.

POLYSILSESQUIOXANE-DENDRON LIQUID CRYSTALS AND METHOD FOR PREPARING THE SAME

Due to excellent processability of the POSS-dendron-structured liquid crystal compound according to the present invention, it is possible to coat and print on the compound and, also, to manufacture large size flexible devices. 3. The liquid crystal compound of claim 1 , wherein Rand Rare independently C-Clinear or branched alkyl claim 1 , or C-Calkenyl.4. The liquid crystal compound of claim 1 , wherein Rand Rare independently C-Clinear or branched alkyl claim 1 , or C-Calkenyl claim 1 , of which at least one carbon atom is substituted by O claim 1 , S claim 1 , N or F.5. The liquid crystal compound of claim 1 , wherein Rand Rare independently C-Calkylene claim 1 , C-Calkoxy claim 1 , C-Cfluoroalkylene claim 1 , C-Cether claim 1 , C-Cfluoroether claim 1 , or —ORO— claim 1 , where Ris C-Calkylene or C-Cfluoroalkylene.8. The liquid crystal compound of claim 1 , wherein the liquid crystal compound of the POSS-dendron structure has a weight average molecular weight of 500-3 claim 1 ,000 g/mol.9. A liquid crystal display device comprising the liquid crystal compound of claim 1 , wherein the liquid crystal compound is used as an additive to a liquid crystal layer so as to improve alignment of liquid crystal molecules claim 1 , or to enhance orientation of the liquid crystal by being located at either or both of the upper or lower side of the liquid crystal surface.11. The method of claim 10 , wherein the R-M-R—Ar is reacted with the polysilsesquioxane after introducing —NCO to the end group of the polysilsesquioxane at the step (iv).12. A liquid crystal display device comprising the liquid crystal compound of claim 2 , wherein the liquid crystal compound is used as an additive to a liquid crystal layer so as to improve alignment of liquid crystal molecules claim 2 , or to enhance orientation of the liquid crystal by being located at either or both of the upper or lower side of the liquid crystal surface.13. A liquid crystal display device comprising the liquid crystal ...

POLYMER FOR LIQUID CRYSTAL ALIGNMENT AGENT, LIQUID CRYSTAL ALIGNMENT AGENT COMPRISING THE SAME, AND LIQUID CRYSTAL ALIGNMENT FILM AND LIQUID CRYSTAL DISPLAY DEVICE USING THE SAME

The present invention relates to a polymer having excellent liquid crystal alignment and electrical properties and thus is suitable for use as a liquid crystal alignment agent, a liquid crystal alignment agent containing the same, a liquid crystal aligning film formed from the liquid crystal alignment agent, and a liquid crystal display device containing the liquid crystal aligning film. 2. The polymer for a liquid crystal alignment agent according to claim 1 , wherein in the Chemical Formula 4 claim 1 , one of Zto Zis nitrogen and the rest are carbon.3. The polymer for a liquid crystal alignment agent according to claim 1 , wherein in the Chemical Formula 4 claim 1 , one of Zand Zis nitrogen claim 1 , the other is carbon claim 1 , and Zand Zare carbon.4. The polymer for a liquid crystal alignment agent according to claim 1 , wherein in the Chemical Formula 4 claim 1 , A is oxygen and a is 0.9. The polymer for a liquid crystal alignment agent according to claim 1 , wherein the polymer for a liquid crystal alignment agent has a weight average molecular weight of 1000 g/mol to 200 claim 1 ,000 g/mol.10. A liquid crystal alignment agent comprising the polymer for a liquid crystal alignment agent of .11. A liquid crystal alignment film comprising the liquid crystal alignment agent of .12. A liquid crystal display device comprising the liquid crystal alignment film of .13. A liquid crystal alignment agent comprising the polymer for a liquid crystal alignment agent of .14. A liquid crystal alignment film comprising the liquid crystal alignment agent of .15. A liquid crystal display device comprising the liquid crystal alignment film of . This application claims the benefit of priority from Korean Patent Application No. 10-2017-0063089 filed on May 22, 2017 and Korean Patent Application No. 10-2017-0150899 filed on Nov. 13, 2017 with the Korean Intellectual Property Office, the disclosures of which are incorporated herein by reference in their entirety.The present ...

Polymerizable polar compound, liquid crystal composition and liquid crystal display element

A compound represented by Formula (1): R 1 is hydrogen or an alkyl group that may be substituted; rings A 1 to A 2 are cyclohexylene or phenylene that may be substituted; a is 0 to 4; Z 1 is a single bond or an alkylene group that may be substituted; Sp 1 to Sp 3 are a single bond or an alkylene that may be substituted; M 1 to M 4 are H, F, Cl, or an alkyl group that may be substituted; R 2 and R 3 are hydrogen, a group represented by Formula (1-a), or an alkyl group having 1 to 5 carbon atoms that may be substituted; and at least one of R 2 and R 3 is a group represented by Formula (1-a); Sp 4 is a single bond or an alkylene group that may be substituted; R 4 and R 5 are hydrogen or an alkyl group; and at least one of R 4 and R 5 is an alkyl group.

LIQUID CRYSTAL ALIGNING AGENT COMPOSITION, METHOD FOR PRODUCING LIQUID CRYSTAL ALIGNMENT FILM USING SAME, AND LIQUID CRYSTAL ALIGNMENT FILM USING SAME

The present invention provides a liquid crystal aligning agent composition that has excellent storage stability, can secure a high imidization rate, and can produce a liquid crystal alignment film having improved film strength together with liquid crystal alignment properties, a method for producing a liquid crystal alignment film using the same, and a liquid crystal alignment film and a liquid crystal display device using the same. 2. The liquid crystal aligning agent composition of claim 1 , wherein the functional group substituted in the primary or secondary amine is capable of being substituted with a hydrogen atom at a temperature of 90° C. or higher.3. The liquid crystal aligning agent composition of claim 1 , wherein the primary or secondary amine compound is included in an amount of 0.03 parts by weight to 30 parts by weight claim 1 , based on a total of 100 parts by weight of the first polymer for the liquid crystal aligning agent and the second polymer for the liquid crystal aligning agent.4. The liquid crystal aligning agent composition of claim 1 , wherein the primary amine or the secondary amine in the primary or secondary amine compounds each independently has a linear or cyclic structure.6. The liquid crystal aligning agent composition of claim 1 , wherein a weight ratio between the first polymer for a liquid crystal aligning agent and the second polymer for a liquid crystal aligning agent is 1:9 to 9:1.7. The liquid crystal aligning agent composition of claim 1 , wherein the molecular weight of the compound having two or more epoxy groups in a molecule is 100 g/mol to 10 claim 1 ,000 g/mol.8. The liquid crystal aligning agent composition of claim 1 , wherein the compound having two or more epoxy groups in a molecule is a cycloaliphatic-based epoxy claim 1 , a bisphenol-based epoxy claim 1 , or a novolac-based epoxy.9. The liquid crystal aligning agent composition of claim 1 , wherein the compound having two or more epoxy groups in a molecule is ...

LIQUID CRYSTAL ALIGNMENT FILM AND LIQUID CRYSTAL DISPLAY DEVICE USING THE SAME

A liquid crystal alignment film comprising a polymer, having an excellent alignment property, stability, and high film strength, and thus exhibiting excellent durability and a high residual image characteristic, and a liquid crystal display device using the liquid crystal alignment film. 2. The liquid crystal alignment film of claim 1 , wherein claim 1 , in Chemical Formula 8 claim 1 , Arand Arare each independently phenylene claim 1 ,{'sup': 1', '2, 'Qand Qare an alkyleneoxy group having 1 to 3 carbon atoms,'}L is —COO—, andn is 1.3. The liquid crystal alignment film of claim 1 , wherein claim 1 , in Chemical Formula 8 claim 1 , Arand Arare each independently phenylene claim 1 ,{'sup': 1', '2, 'Qand Qare each independently an alkyleneoxy group having 1 to 3 carbon atoms,'}L is —COO— or —OCO—, andn is 2.4. The liquid crystal alignment film of claim 1 , wherein claim 1 , in Chemical Formula 8 claim 1 , Aris phenylene claim 1 , and Aris phenylene or biphenylene claim 1 ,{'sup': 1', '2, 'Qand Qare each independently an alkyleneoxy group having 1 to 3 carbon atoms,'}L is —COO— or —OCO—, andn is 2.7. The liquid crystal alignment film of claim 6 , wherein claim 6 , in the liquid crystal alignment film claim 6 ,the weight ratio between the second polymer andthe first polymer is 10:90 to 90:10.8. The liquid crystal alignment film of claim 1 , wherein the first polymer has a weight average molecular weight (measured by a GPC method) of 5000 to 100 claim 1 ,000.9. A liquid crystal display device including the liquid crystal alignment film of . This application is a 35 U.S.C. § 371 National Phase Entry Application from PCT/KR2018/011265, filed on Sep. 21, 2018, and designating the United States, which claims priority to and the benefit of Korean Patent Application No. 10-2017-0134828, filed on Oct. 17, 2017, and Korean Patent Application No. 10-2018-0113253, filed on Sep. 20, 2018, with the Korean Intellectual Property Office, the disclosures of which are incorporated herein ...

METHOD FOR MANUFACTURING A LIQUID CRYSTAL DISPLAY DEVICE AND LIQUID CRYSTAL MIXTURE

The invention relates to a method of manufacturing a liquid crystal display device wherein a liquid crystal mixture having positive dielectric anisotropy or negative dielectric anisotropy is interposed between a first substrate and a second substrate, the liquid crystal mixture comprising liquid crystal molecules, a self assembling photoalignment agent, a polymerisable compound, and wherein said LC mixture is photoaligned by irradiation with linearly polarised ultraviolet light and then cured by irradiation with ultraviolet light. 2. The method according to claim 1 , characterised in that the polarised light is ultraviolet light.3. The method according to claim 1 , characterised in that the total concentration of the one or more compounds of formula S in the liquid crystal mixture is in the range of from 0.01 to 10%.4. The method according to claim 1 , characterised in that the total concentration of the one or more compounds of formula P in the liquid crystal mixture is in the range of from 0.01 to 10%.7. The method according to claim 1 , characterised in that the LC mixture has negative dielectric anisotropy.9. The method according to claim 1 , characterised in that the LC mixture has positive dielectric anisotropy.14. (canceled)15. (canceled)16. Liquid crystal display claim 1 , characterised in that it is manufactured according to the method of .17. Liquid crystal display according to claim 16 , wherein the liquid crystal display is an IPS or FFS display.20. A process for the preparation of LC mixtures according to claim 19 , characterised in that one or more mesogenic or liquid crystalline compounds are mixed with each other and that one or more self assembling photoalignment agents of formula S and one or more polymerisable compounds of formula P are added.21. Liquid crystal display claim 19 , comprising an LC mixture according to .22. Liquid crystal display according to claim 21 , wherein the liquid crystal display is an IPS or FFS display. The invention ...

CONDUCTIVE ALIGNMENT LAYER, MANUFACTURE METHOD OF THE CONDUCTIVE ALIGNMENT LAYER, DISPLAY SUBSTRATE COMPRISING THE CONDUCTIVE ALIGNMENT LAYER, AND DISPLAY DEVICE

Disclosed are a conductive alignment layer, a manufacture method of the conductive alignment layer, a display substrate comprising the conductive alignment layer and a display device which relate to the technology of LCD, simplify the manufacture method of conductive layer and alignment layer and also reduce the complexity in manufacturing a LCD device by preparing the conductive layer and the alignment layer in the substrate simultaneously through utilizing a material possessing both conductivity and alignment, without the need of preparing the conductive layer and the alignment layer separately. 1. A conductive alignment layer , comprising:a conductive material and an alignment material; or,a conductive alignment material; and,wherein the conductive alignment layer is configured to possess both conductivity and alignment.2. The conductive alignment layer of claim 1 , further comprising a pigment to form a conductive alignment color filter (CF) layer;wherein the conductive alignment CF layer is configured to possess conductivity, alignment and color rendering.3. The conductive alignment layer of claim 1 , wherein the conductive material is selected from a group consisting of carbon material claim 1 , metal nanostructured material claim 1 , conductive polymer material and organic conductive material.4. The conductive alignment layer of claim 3 , wherein the carbon material is selected from a group consisting of carbon nanotube claim 3 , graphite and carbon black.5. The conductive alignment layer of claim 1 , wherein the alignment material is a photosensitive alignment molecule or a surface-active agent;wherein the photosensitive alignment molecule is selected from a group consisting of photoisomerized azobenzene group, photodimerized cinnamic acid ester, chalcone group, photodegraded cyclobutane dianhydride polyimide, polyimide, polyvinyl alcohol, polyacrylic resin and polysilane;wherein the surface-active agent is selected from a group consisting of polyimide, ...

LAMINATED GLASS AND PROJECTION IMAGE DISPLAY SYSTEM

The present invention is to provide a laminated glass having excellent impact resistance and a projection image display system. The laminated glass of the present invention includes a first glass plate, an alignment film containing a vinyl alcohol resin, a retardation layer formed of a composition containing a polymerizable liquid crystal compound and a compound represented by Formula (1), a cholesteric liquid crystal layer, and a second glass plate in this order. 3. The laminated glass according to claim 2 ,{'sup': 2', '4, 'wherein Lrepresents a single bond or a divalent linking group selected from the group consisting of —O—, —CO—, —NR—, —S—, an alkylene group, and a combination thereof, and'}{'sup': '4', 'Rrepresents a hydrogen atom or an alkyl group.'}5. The laminated glass according to claim 1 ,wherein the compound has a molecular weight of 200 or more and less than 350.6. The laminated glass according to claim 1 ,wherein a content of the compound in the composition is 0.30 to 6.0 parts by mass with respect to 100 parts by mass of the polymerizable liquid crystal compound.7. A projection image display system comprising:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'the laminated glass according to ; and'}a projector.9. The laminated glass according to claim 2 ,wherein the compound has a molecular weight of 200 or more and less than 350.10. The laminated glass according to claim 2 ,wherein a content of the compound in the composition is 0.30 to 6.0 parts by mass with respect to 100 parts by mass of the polymerizable liquid crystal compound.11. A projection image display system comprising:{'claim-ref': {'@idref': 'CLM-00002', 'claim 2'}, 'the laminated glass according to ; and'}a projector.13. The laminated glass according to claim 3 ,wherein the compound has a molecular weight of 200 or more and less than 350.14. The laminated glass according to claim 3 ,wherein a content of the compound in the composition is 0.30 to 6.0 parts by mass with respect to 100 ...

Polymerizable compound, polymer, polymerizable composition, film, and half mirror for displaying projection image

The present invention provides a polymerizable compound denoted by Formula (I): in the formula, Z 1 and Z 2 represent an arylene group, and the like, m represents 1 or 2, n represents an integer of 0 or 1, and when m is 2, n is 0, L 1 , L 2 , L 3 , and L 4 each independently represent a linking group such as —C(═O)O— and —OC(═O)—, T 3 represents -Sp 4 -R 4 , X represents —O—, and the like, r represents 1 to 4, Sp 1 , Sp 2 , Sp 3 , Sp 4 , and Sp 5 each independently represent a single bond or a linking group, R 1 and R 2 each independently represent a polymerizable group, and R 3 , R 4 , and R 5 each independently represent a hydrogen atom, a polymerizable group, or the like; a polymerizable composition containing the polymerizable compound described above; a film formed of the polymerizable composition described above; and a half mirror for displaying a projection image including the film described above.

NEMATIC LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL DEVICE USING THE SAME

There are provided a polymerizable-compound-containing nematic liquid crystal composition which is useful as a material for a liquid crystal display and which has a negative dielectric anisotropy (Δ∈), and a liquid crystal display device using such a nematic liquid crystal composition. The polymerizable compound is polymerized without interference with generation of the pretilt angle of the liquid crystal molecules by exposure to ultraviolet in a process for producing a device, so that a PSA display device in which a proper pretilt angle is given and which has well stabilized alignment state, a high response speed, and excellent display quality with defective display being eliminated or reduced can be produced. A liquid crystal display device using the liquid crystal composition is useful as an active-matrix liquid crystal display device and can be applied to PSVA liquid crystal display devices. 3. The liquid crystal composition according to claim 2 , wherein one or more compounds selected from the group consisting of the compounds represented by General Formulae (Ia) and (Id) are used as the second component claim 2 , and the total amount of the selected compounds is in the range of 90 to 100 mass % relative to the amount of the whole second component.6. The liquid crystal composition according to claim 5 , wherein Rin General Formula (II) is represented by (R-1) and/or (R-2).9. A liquid crystal display device comprising the liquid crystal composition containing the polymerizable compound according to claim 1 , wherein the polymerizable compound in the liquid crystal composition is polymerized to enable alignment of liquid crystal molecules.10. A liquid crystal display comprising the liquid crystal device according to . The present invention relates to a nematic liquid crystal composition which is useful as a material for a liquid crystal display and which has a negative dielectric anisotropy (Δ∈), and the present invention also relates to a liquid crystal display ...

LIQUID CRYSTAL ALIGNING AGENT COMPOSITION, METHOD FOR PREPARING LIQUID CRYSTAL ALIGNMENT FILM USING SAME, AND LIQUID CRYSTAL ALIGNMENT FILM AND LIQUID CRYSTAL DISPLAY DEVICE USING SAME

Provided is a liquid crystal aligning agent composition including a liquid crystal polymer together with a polyimide-based (co)polymer, a method for preparing a liquid crystal alignment film using the same, and a liquid crystal alignment film and a liquid crystal display device using the same. 1. A liquid crystal aligning agent composition comprising:a polyimide-based (co)polymer containing at least one selected from the group consisting of a polyamic acid repeating unit, a polyamic acid ester repeating unit, and a polyimide repeating unit; andan aromatic polyester-based polymer.2. The liquid crystal aligning agent composition of claim 1 , wherein the polyimide-based (co)polymer and the aromatic polyester-based polymer are mixed in a weight ratio of 1:99 to 1:0.5.3. The liquid crystal aligning agent composition of claim 1 , wherein the aromatic polyester-based polymer has a weight average molecular weight of 10 claim 1 ,000 g/mol to 100 claim 1 ,000 g/mol.6. The liquid crystal aligning agent composition of claim 5 , wherein claim 5 , in Chemical Formula 1-1 claim 5 , Ris an alkylene group having 8 to 14 carbon atoms claim 5 , and Ar is an arylene group having 10 to 15 carbon atoms.7. The liquid crystal aligning agent composition of claim 1 , wherein the aromatic polyester-based polymer has liquid crystallinity at 200° C. to 240° C.10. A method for preparing a liquid crystal alignment film claim 1 , comprising the steps of:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'coating the liquid crystal aligning agent composition of onto a substrate to form a coating film;'}drying the coating film;irradiating the dried coating film with light or rubbing the coating film to provide an alignment-treated coating film; andheat-treating and curing the alignment-treated coating film.11. The method of claim 10 , wherein the step of drying the coating film is performed at a temperature of 50° C. to 150° C.12. The method of claim 10 , wherein the step of heat-treating and curing ...

LIQUID CRYSTAL DISPLAY UNIT AND METHOD OF MANUFACTURING THE SAME

A method of manufacturing a liquid crystal display device with which response characteristics are able to be easily improved without using major equipment is provided. The method of manufacturing a liquid crystal display device includes steps of forming a first alignment film including a polymer compound having a crosslinkable functional group as a side chain on one substrate of a pair of substrates; forming a second alignment film on the other substrate of the pair of substrates; arranging the pair of substrates so that the first alignment film and the second alignment film are opposed to each other, and sealing a liquid crystal layer containing a liquid crystal molecule having negative dielectric constant anisotropy between the first alignment film and the second alignment film; and bridging the polymer compound to give pre-tilt to the liquid crystal molecule after sealing the liquid crystal layer. 1. A method of manufacturing a liquid crystal display unit comprising the steps of:forming a first alignment film including a polymer compound comprising a main chain and a side chain having a crosslinkable functional group bonded to the main chain;forming a second alignment film on a second substrate;arranging the first and second substrates so that the first alignment film and the second alignment film are opposed to each other, and sealing a liquid crystal layer containing a liquid crystal molecule having positive dielectric constant anisotropy between the first alignment film and the second alignment film; andbridging the polymer compound through the crosslinkable functional group of the polymer compound to give pretilt to the liquid crystal molecule after sealing the liquid crystal layer,wherein,bridging of the polymer compound occurs through the crosslinkable functional group of the side chain from a different main chain or the same main chain of the polymer.2. The method of manufacturing a liquid crystal display unit according to claim 1 , wherein while the ...

LIQUID CRYSTAL DISPLAY DEVICE

A liquid crystal display device includes a TFT substrate having a first alignment film and an opposing substrate having a second alignment film with liquid crystals sandwiched therebetween. One of the first and second alignment films, comprises a first polyimide produced via polyamide acid ester containing cyclobutane as a precursor and a second polyimide produced via polyamide acid as a precursor. The polyamide acid has a higher polarity than that of the polyamide acid ester. The one of the first and second alignment films is responsive to photo-alignment. A first side of the one of the first and second alignment films is adjacent to the liquid crystals, and a second side thereof is closer to one of the TFT substrate and the counter substrate than the first side. The first side contains more of the first polyimide and less of the second polyimide than the second side. 1. A liquid crystal display device comprising:a TFT substrate in which an alignment film is formed over a pixel including a pixel electrode and a TFT;an opposing substrate which faces the TFT substrate and in which an alignment film is formed,liquid crystals sandwiched between the alignment film of the TFT substrate and the alignment film of the opposing substrate;wherein a first alignment films, either one of the alignment film of the TFT substrate and the alignment film of the opposing substrate, comprising a first polyimide produced by a first compound containing cyclobutane as a precursor and a second polyimide produced by a second compound as a precursor,the second compound having higher polarity than that of the first compound,a photo-alignment process is applied to the first alignment film,a first side of the first alignment film is adjacent to the liquid crystals, a second side of the first alignment film is closer to one of the TFT substrate and the counter substrate than the first side,wherein the first side contains more the first polyimide than the second side contains, the second side ...

OPTICAL ELEMENT, LIGHT GUIDE ELEMENT, AND IMAGE DISPLAY DEVICE

Provided are an optical element that can make the brightness of light emitted from a light guide plate uniform, a light guide element, and an image display device. The optical element includes a patterned cholesteric liquid crystal layer that is obtained by immobilizing a cholesteric liquid crystalline phase, in which the patterned cholesteric liquid crystal layer has a liquid crystal alignment pattern in which a direction of an optical axis derived from a liquid crystal compound changes while continuously rotating in at least one in-plane direction, and the patterned cholesteric liquid crystal layer has regions having different pitches of helical structures in a plane. 1. An optical element comprising a patterned cholesteric liquid crystal layer that is obtained by immobilizing a cholesteric liquid crystalline phase ,wherein the patterned cholesteric liquid crystal layer has a liquid crystal alignment pattern in which a direction of an optical axis derived from a liquid crystal compound changes while continuously rotating in at least one in-plane direction, andthe patterned cholesteric liquid crystal layer has regions having different pitches of helical structures in a plane.2. The optical element according to claim 1 ,wherein in the patterned cholesteric liquid crystal layer, a pitch of a helical structure increases from one side toward another side in the in-plane direction.3. The optical element according to claim 1 , comprising:a plurality of cholesteric liquid crystal layers,wherein the cholesteric liquid crystal layers have different twisted directions of helical structures, andat least one of the cholesteric liquid crystal layers is the patterned cholesteric liquid crystal layer.4. The optical element according to claim 3 , comprising:the patterned cholesteric liquid crystal layers having different twisted directions of helical structures,wherein in the patterned cholesteric liquid crystal layers having different twisted directions of helical structures, ...

DISPLAY BASEPLATE AND PREPARATION METHOD THEREOF, AND DISPLAY DEVICE

A display baseplate and preparation method thereof, and a display device are provided, which belong to the field of display technology. The display baseplate includes a substrate and a conductive alignment film over the substrate. The conductive alignment film is of a composite material comprising graphene and polyimide. 1. A display baseplate , comprising:a substrate anda conductive alignment film over the substrate,wherein the conductive alignment film is of a composite material comprising graphene and polyimide.2. The display baseplate according to claim 1 , wherein a content of the polyimide by weight is greater than that of the graphene in the composite material.3. The display baseplate according to claim 1 , wherein the composite material further comprises polyacrylic acid.4. The display baseplate according to claim 3 , wherein a content of the polyimide by weight is greater than that of the polyacrylic acid in the composite material.5. The display baseplate according to claim 2 , wherein the content of the polyimide by weight in the composite material is greater than 50%.6. The display baseplate according to claim 2 , wherein the content of the polyimide by weight in the composite material is greater than 80%.7. A method for preparing a display baseplate claim 2 , comprising:forming a composite material comprising graphene and polyimide; andforming a conductive alignment film on a substrate of the display baseplate, wherein conductive alignment film is formed using the composite material.8. The method according to claim 7 , wherein forming of the composite material comprises:providing graphene oxide;preparing a mixture of graphene oxide and polyacrylic acid; andcausing a reduction of the mixture of the graphene oxide and polyacrylic acid, thereby producing the composite material comprising graphene and polyimide.9. The method according to claim 8 , wherein preparing of the mixture of graphene oxide and polyacrylic acid comprises:dissolving the graphene oxide ...

PHOTO-ALIGNMENT COMPOSITION AND METHOD OF MANUFACTURING A DISPLAY PANEL USING THE SAME

A photo-alignment composition includes a compound comprising a repeat unit represented by Chemical Formula 1 and a solvent. The photo-alignment composition is coated on a first substrate and a second substrate facing the first substrate, thus forming alignment layers. A liquid crystal layer is formed between the first substrate and the second substrate. The photo-alignment composition includes a compound structure having a high decomposition rate and a functional group capable of a hydrogen bond, which is weaker than a covalent bond. Thus, a hardness of the alignment layer may be improved at a room temperature, and a hydrogen bonding functional group of the photo-alignment composition may be decomposed at a high temperature thus photo-aligning the alignment layer. Therefore, an afterimage of a screen may decrease, and a hardness of the alignment layer may increase.

LIQUID CRYSTAL ALIGNING AGENT, LIQUID CRYSTAL ALIGNMENT FILM AND LIQUID CRYSTAL DISPLAY ELEMENT

The present invention relates to a liquid crystal aligning agent which contains a polymer that has a site having an isocyanate group and/or a blocked isocyanate group, a site having a photoreactive group having photoalignment, and a site having at least one functional group selected from an amino group and a hydroxyl group in each molecule. The present invention provides a liquid crystal display element which enables baking at low temperatures during the formation of a liquid crystal alignment film by a photoalignment method, the liquid crystal alignment film being able to be imparted with alignment regulating property and pretilt angle developing property. 1. A liquid crystal aligning agent , comprising a polymer having:(a) a site having an isocyanate group and/or a blocked isocyanate group;(b) a site having at least one functional group selected from an amino group and a hydroxyl group within each molecule; and(c) a site having a photoreactive group having photoalignment.2. The liquid crystal aligning agent according to claim 1 , wherein the site (a) having an isocyanate group and/or a blocked isocyanate group is represented by formula (1):{'br': None, 'sub': a', 'a, '—S—I\u2003\u2003(1)'}wherein Ia represents an isocyanate group or a blocked isocyanate group,Sa represents a spacer unit, anda bonding pointer left of Sa means a bonding to a backbone of the polymer optionally via a spacer.3. The liquid crystal aligning agent according to claim 1 , wherein the site (a) having an isocyanate group and/or a blocked isocyanate group is derived from a monomer represented by formula (1m):{'br': None, 'sub': a', 'b', 'a', 'a', 'p, 'M—M\ue8a0S—I]\u2003\u2003(1m)'}wherein Ma represents a first polymerizable group,Mb represents a single bond, a divalent heterocycle, a trivalent heterocycle, a tetravalent heterocycle, a substituted or unsubstituted linear or branched alkyl group having a carbon number of 1 to 10, a divalent aromatic group, a trivalent aromatic group, a ...

LIQUID CRYSTAL DISPLAY DEVICE AND METHOD FOR PRODUCING THE SAME

Provided are a liquid crystal display device that suppresses occurrence of drop marks during production without degrading various properties, such as dielectric anisotropy, viscosity, nematic phase upper limit temperature, rotational viscosity (γ), and ghosting property, and a method for producing the liquid crystal display device. A liquid crystal display device of the present invention includes a liquid crystal composition layer sandwiched between a first substrate and a second substrate and vertical alignment films and that contain a polymer of a polymerizable compound having a polyimide skeleton as a main chain and a crosslinkable functional group as a side chain. The liquid crystal composition constituting the liquid crystal composition layer contains compounds represented by general formulae (I) and (II). 2. The liquid crystal display device according to claim 1 , comprising a plurality of pixels each including two or more domains with pretilt angles different from one another.3. The liquid crystal display device according to claim 1 , wherein in the vertical alignment film claim 1 , the main chain is a thermosetting polyimide or a soluble polyimide.4. The liquid crystal display device according to claim 1 , wherein the first substrate includes a common electrode and the second substrate includes a pixel electrode driven by a thin film transistor.5. The liquid crystal display device according to claim 4 , wherein the pixel electrode has comb-tooth slits that extend in four directions from the center of the pixel so as to form four domains in which the liquid crystal molecules in the liquid crystal composition layer align in different directions.6. The liquid crystal display device according to claim 1 , wherein the liquid crystal composition layer is formed by a dropping method.7. The liquid crystal display device according to claim 1 , wherein the liquid crystal composition contains 30 to 50 mass % of the compound represented by general formula (I) and 30 to ...

LIQUID CRYSTAL COMPOSITION

A liquid crystal composition, a liquid crystal film and a display device are provided. The liquid crystal composition can be uniformly aligned with no problems such as dewetting in an operation of aligning horizontally alignable liquid crystals. Also, a state of the aligned liquid crystal compound can be stably maintained. 2. The liquid crystal composition of claim 1 , wherein the horizontally alignable liquid crystal compound comprises a multifunctional polymerizable liquid crystal compound and a monofunctional polymerizable liquid crystal compound.3. The liquid crystal composition of claim 2 , wherein the monofunctional polymerizable liquid crystal compound is comprised at a content of greater than 0 parts by weight and not more than 100 parts by weight claim 2 , based on 100 parts by weight of the multifunctional polymerizable liquid crystal compound.4. The liquid crystal composition of claim 1 , which satisfies the requirements of the following General Formula 1:{'br': None, 'X<8% \u2003\u2003General Formula 1'}wherein X represents a percentage (%) of the absolute value of a variation in phase difference value of a liquid crystal layer formed of the liquid crystal composition after the liquid crystal layer is kept at 80° C. for 100 hours, based on the initial phase difference value of the liquid crystal layer.6. The liquid crystal composition of claim 1 , wherein the amine compound is a compound in which claim 1 , in Formula 3 claim 1 , each of Land Lis a single bond claim 1 , Ris hydrogen claim 1 , Ris an alkyl group having 1 to 12 carbon atoms or -L-N(R)(R) claim 1 , and Lis an alkylene or alkylidene group having 1 to 12 carbon atoms claim 1 , and Rand Rare each independently hydrogen claim 1 , a linear or branched alkyl group having 1 to 12 carbon atoms or a cycloalkyl group having 3 to 16 carbon atoms.7. The liquid crystal composition of claim 1 , wherein the amine compound is a compound in which claim 1 , in Formula 3 claim 1 , each of Land Lis a single ...

METHOD OF FABRICATING A LIQUID CRYSTAL POLYMER FILM

A method of fabricating a liquid crystal polymer film includes providing a support substrate having a surface having a shape arranged to define a form of a liquid crystal polymer film to be fabricated; applying a layer of a photoaligning material over the surface of the support substrate, the photoaligning material having an absorption band; exposing the layer of photoaligning material to a light having a linear polarization and the light comprising a wavelength within the absorption band to convert the layer of photoaligning material into a layer of photoaligned material; applying a layer of a polymerizable liquid crystal over the layer of photoaligned material; performing photopolymerization of the layer of polymerizable liquid crystal to form a liquid crystal polymer film; applying a solvent to the layer of photoaligned material, the solvent formulated to dissolve the photoaligned material to thereby release the liquid crystal polymer film from the support substrate; and removing the liquid crystal polymer film from the support substrate. 1. A method of fabricating a liquid crystal polymer film , the method comprising:(a) providing a support substrate having a surface having a shape arranged to define a form of a liquid crystal polymer film to be fabricated;(b) applying a layer of a photoaligning material over said surface of said support substrate, said photoaligning material having an absorption band;(c) exposing said layer of photoaligning material to a light having a linear polarization and said light comprising a wavelength within said absorption band to convert said layer of photoaligning material into a layer of photoaligned material;(d) applying a layer of a polymerizable liquid crystal over said layer of photoaligned material;(e) performing photopolymerization of said layer of polymerizable liquid crystal to form a liquid crystal polymer film of about 1 μm in thickness;(f) applying a solvent to said layer of photoaligned material, said solvent formulated ...

LIQUID CRYSTAL ALIGNMENT AGENT, LIQUID CRYSTAL ALIGNMENT FILM, AND LIQUID CRYSTAL DISPLAY ELEMENT

A liquid crystal alignment agent capable of forming a liquid crystal alignment film having good ultraviolet reliability, the liquid crystal alignment film, and a liquid crystal display element having the same are provided. The liquid crystal alignment agent includes a polymer (A) and a solvent (B). The polymer (A) is obtained by reacting a mixture. The mixture includes a tetracarboxylic dianhydride component (a) and a diamine component (b). The diamine component (b) includes a diamine compound (b-1) represented by formula (1), a diamine compound (b-2) represented by formula (2), and a diamine compound (b-3) having a structure represented by formula (3). 3. The liquid crystal alignment agent of claim 1 , wherein in formula (2) claim 1 , Yeach independently represents a single bond claim 1 , a Cto Calkylene group claim 1 , or a phenylene group.5. The liquid crystal alignment agent of claim 1 , wherein in formula (2) claim 1 , Yeach independently represents a pyrrolyl group claim 1 , an imidazolyl group claim 1 , a pyrazolyl group claim 1 , a pyridyl group claim 1 , or a pyrimidinyl group.6. The liquid crystal alignment agent of claim 1 , wherein in formula (2) claim 1 , j represents an integer of 1 to 3.8. The liquid crystal alignment agent of claim 1 , wherein based on a usage amount of 100 moles of the diamine component (b) claim 1 , a usage amount of the diamine compound (b-1) represented by formula (1) is 0.3 moles to 10 moles claim 1 , a usage amount of the diamine compound (b-2) represented by formula (2) is 0.3 moles to 10 moles claim 1 , and a usage amount of the diamine compound (b-3) having the structure represented by formula (3) is 5 moles to 90 moles.9. A liquid crystal alignment film formed by the liquid crystal alignment agent of .10. A liquid crystal display element claim 9 , comprising the liquid crystal alignment film of . This application claims the priority benefit of Taiwan application serial no. 103125328, filed on Jul. 24, 2014. The entirety of ...

LIQUID CRYSTAL ALIGNMENT AGENT, LIQUID CRYSTAL ALIGNMENT FILM, AND LIQUID CRYSTAL DISPLAY ELEMENT

A liquid crystal alignment agent capable of forming a liquid crystal alignment film having good pre-tilt angle light stability, the liquid crystal alignment film, and a liquid crystal display element having the liquid crystal alignment film are provided. The liquid crystal alignment agent includes a polymer (A), a photosensitive polysiloxane (B), and a solvent (C). The polymer (A) is obtained by reacting a mixture, wherein the mixture includes a tetracarboxylic dianhydride component (a1) and a diamine component (a2). The diamine component (a2) includes a diamine compound (a2-1) represented by formula (1). The photosensitive polysiloxane (B) is obtained by reacting a silane compound (b1-1) containing an epoxy group and a cinnamic acid derivative (b2). 4. The liquid crystal alignment agent of claim 1 , wherein based on a usage amount of 100 moles of the diamine component (a2) claim 1 , a usage amount of the diamine compound (a2-1) is 0.5 moles to 20 moles.5. The liquid crystal alignment agent of claim 1 , wherein based on 100 parts by weight of the polymer (A) claim 1 , a usage amount of the photosensitive polysiloxane (B) is 3 parts by weight to 30 parts by weight; and a usage amount of the solvent (C) is 800 parts by weight to 4000 parts by weight.6. The liquid crystal alignment agent of claim 1 , wherein a molar equivalent ratio (b2)/(b1−1) of the cinnamic acid derivative (b2) to the silane compound (b1−1) containing an epoxy group is 0.1 to 0.7.7. The liquid crystal alignment agent of claim 1 , wherein an imidization ratio of the polymer (A) is 3% to 50%.8. A liquid crystal alignment film formed by the liquid crystal alignment agent of .9. A liquid crystal display element claim 8 , comprising the liquid crystal alignment film of . This application claims the priority benefit of Taiwan application serial no. 104123417, filed on Jul. 20, 2015. The entirety of the above-mentioned patent application is hereby incorporated by reference herein and made a part of this ...

LIQUID CRYSTAL DISPLAYS AND LIQUID CRYSTALLINE MEDIA WITH HOMEOTROPIC ALIGNMENT

The present invention relates to liquid-crystalline media (LC media) having negative or positive dielectric anisotropy comprising self-aligning mesogens (SAMs) which effect homeotropic (vertical) alignment of the LC media at a surface or the cell walls of a liquid-crystal display (LC display). The invention therefore also encompasses LC displays having homeotropic alignment of the liquid-crystalline medium (LC medium) without conventional imide alignment layers. The LC media may be supplemented by a polymerisable or polymerised component, which serves for stabilisation of the alignment, for adjustment of the tilt angle and/or as passivation layer. 1. A LC medium comprising a low-molecular-weight liquid-crystalline component and one or more organic compounds , where the organic compound contains at least one polar anchor group and at least one ring group , the polar anchor group of the organic compound contains at least one OH structure or an N atom in a primary or secondary or tertiary amino group , and wherein the anchor group is not comprised of a OH group which is a screened OH group as in 2 ,6-di-tert-butylphenol ,said LC medium being nematic.2. The LC medium according to claim 1 , additionally comprising a polymerizable or polymerized component claim 1 , where the polymerized component is obtainable by polymerization of a polymerizable component.3. The LC medium according to claim 1 , wherein the organic compound has a relative molar mass of greater than 100 g/mol.4. The LC medium according to claim 1 , wherein the polar anchor group of the organic compound denotes a group of the formula R claim 1 , where{'sup': 2', '0, 'sub': '2', 'Rdenotes straight-chain, branched or cyclic alkyl having 1 to 25 C atoms, in which, in addition, one or more non-adjacent CHgroups may be replaced by —NR, —O—, —S—, —CO—, —CO—O—, —O—CO—, —O—CO—O— in such a way that N, O and/or S atoms are not linked directly to one another, and in which, in addition, one or more tertiary carbon ...

FABRICATION METHOD OF DISPLAY DEVICE AND DISPLAY DEVICE

Provided is a fabrication method of a display device. The method includes providing an alignment solution on at least one of a first substrate and a second substrate, curing the alignment solution to form a main alignment layer, and providing a liquid crystal composition including liquid crystal molecules to form a liquid crystal layer between the first substrate and the second substrate. The alignment solution or the liquid crystal composition includes a reactive mesogen represented by the following Formula 1. 2. The fabrication method of a display device as claimed in claim 1 , the alignment solution comprising the reactive mesogen claim 1 , the method further comprising: applying heat to the main alignment layer and the liquid crystal layer to elute the reactive mesogen in the main alignment layer to the liquid crystal layer; andproviding the liquid crystal layer with light to perform reaction of the reactive mesogen to form an alignment forming layer.3. The fabrication method of a display device as claimed in claim 2 , the curing step further comprising:pre-curing the alignment solution at a first temperature; andmain curing the pre-cured alignment solution at a second temperature higher than the first temperature.4. The fabrication method of a display device as claimed in claim 2 , the alignment solution comprising a solvent and a solid content claim 2 ,the solid content comprising an alignment agent for forming the main alignment layer and the reactive mesogen for forming the alignment forming layer, andthe reactive mesogen being included in an amount ratio from about 1 to about 30 wt % based on an amount of the solid content.5. The fabrication method of a display device as claimed in claim 2 , the using step further comprising:providing the liquid crystal composition on at least one of the first substrate and the second substrate;providing an encapsulating solution on at least one of the first substrate and the second substrate;facing the first substrate and ...

LIQUID CRYSTAL ALIGNING AGENT, LIQUID CRYSTAL ALIGNING LAYER, METHODS OF PREPARING THE SAME, AND LIQUID CRYSTAL DISPLAY PANEL

Provided a liquid crystal aligning agent capable of prevent liquid crystal molecules from polarization including a polyimide precursor, a cationic exchange resin and a solvent. The present invention further provides a liquid crystal aligning layer formed from the liquid crystal aligning agent, methods of preparing the liquid crystal aligning agent and the liquid crystal aligning layer, and a liquid crystal display panel including the liquid crystal aligning layer. 1. A liquid crystal aligning agent comprising a polyimide precursor , a cationic exchange resin and a solvent.3. The liquid crystal aligning agent of wherein the R is one selected from the group consisting of —SOH claim 2 , —COOH and —COSH.4. The liquid crystal aligning agent of wherein the cationic exchange resin has a less density as compared to the polyimide precursor.5. The liquid crystal aligning agent of comprising:the polyimide precursor: 20-40 parts by weight;the cationic exchange resin: 1-3 parts by weight; andthe solvent: 160-200 parts by weight.6. The liquid crystal aligning agent of wherein the solvent is one or more selected from the group consisting of N-methyl-2-pyrrolidone claim 1 , γ-butyrolactone claim 1 , dimethylformamide claim 1 , dimethylacetamide claim 1 , tetrafuran and butoxyethanol.7. (canceled)8. A liquid crystal aligning layer formed from the liquid crystal aligning agent of .9. (canceled)10. A liquid crystal display panel comprising the liquid crystal aligning layer of . Embodiments of the present invention relates to a liquid crystal aligning agent, a liquid crystal aligning layer formed from the liquid crystal aligning agent, methods of preparing the same, and a liquid crystal display panel comprising the liquid crystal aligning layer.Liquid Crystal Displays (LCDs) are one of electronic products having the most potential to develop in the field of displays. They have various substantive advantages including low driving voltage, low power consumption, light weight, no harmful ...

LIQUID CRYSTAL ALIGNING AGENT CONTAINING CROSSLINKING AGENT AND POLYMER THAT HAS SITE HAVING ISOCYANATE GROUP AND/OR BLOCKED ISOCYANATE GROUP AND SITE HAVING PHOTOREACTIVITY, LIQUID CRYSTAL ALIGNMENT FILM, AND LIQUID CRYSTAL DISPLAY ELEMENT

Provided is a liquid crystal display element that can be baked at a low temperature when forming a liquid crystal alignment film capable of imparting an alignment regulating property and a pretilt angle developing property via a photoalignment method. Further provided is a liquid crystal display element in which the liquid crystal pretilt angles are highly stable, and display burn-in hardly occurs even due to long usage. Further provided are a vertical liquid crystal alignment film to be used in the liquid crystal display element, and a liquid crystal aligning agent with which it is possible to provide the vertical liquid crystal alignment film. A liquid crystal aligning agent of the present invention contains: component (A), which is a polymer including (A-1) a site having an isocyanate group and/or a blocked isocyanate group and (A-2) a site having photoreactivity; component (B), which is a compound having, in a molecule, at least two functional groups of at least one type selected from the group consisting of an amino group and a hydroxyl group; and an organic solvent. 1: A liquid crystal aligning agent comprising the following component (A) , the following component (B) , and an organic solvent:Component (A): a polymer comprising a (A-1) site having an isocyanate group and/or a blocked isocyanate group; and a (A-2) site having photoalignment;Component (B): a compound comprising in a molecule of the compound two or more functional groups, each of which is at least one selected from the group consisting of an amino group and a hydroxyl group.2: The liquid crystal aligning agent according to claim 1 ,wherein the (A-1) site having an isocyanate group and/or a blocked isocyanate group is represented by following formula (1), wherein Ia represents an isocyanate group or a blocked isocyanate group, {'br': None, 'sub': a', 'a, '—S—I\u2003\u2003(1)'}, 'Sa represents a spacer unit, and the bonding pointer left of Sa represents bonding to the backbone of a polymer of the ...

VERTICAL ALIGNMENT LIQUID CRYSTAL DISPLAY AND MANUFACTURE METHOD THEREOF

A vertical alignment liquid crystal display includes a first substrate, a second substrate, a liquid crystal layer located between the first substrate and the second substrate, a first and a second passivation layers respectively located at inner sides of the first and the second substrates, a common electrode layer and a pixel electrode layer respectively located on the first and the second passivation layers. The liquid crystal layer includes liquid crystal molecules, auxiliary alignment agent and a polymer network penetrating the entire liquid crystal layer. The auxiliary alignment agent makes the liquid crystal molecules in the liquid crystal layer vertically aligned on the surfaces of the first and the second substrates. The polymer network stabilizes alignment of the liquid crystal molecules and enhances vertical alignment effect of the auxiliary alignment agent to the liquid crystal molecules. 1. A vertical alignment liquid crystal display , comprising a first substrate , a second substrate , oppositely located with the first substrate , a liquid crystal layer located between the first substrate and the second substrate , a first passivation layer and a second passivation layer respectively located at inner sides of the first substrate and the second substrate , and a common electrode layer and a pixel electrode layer respectively located on the first passivation layer and the second passivation layer;wherein the liquid crystal layer comprises liquid crystal molecules, auxiliary alignment agent and a polymer network penetrating the entire liquid crystal layer; the auxiliary alignment agent makes the liquid crystal molecules in the liquid crystal layer vertically aligned on the first substrate and the second substrate; the polymer network stabilizes alignment of the liquid crystal molecules and enhances vertical alignment effect of the auxiliary alignment agent to the liquid crystal molecules;wherein the polymer network is formed through polymerization of ...

LIQUID CRYSTAL ALIGNING AGENT COMPOSITION, METHOD FOR PREPARING LIQUID CRYSTAL ALIGNMENT FILM USING SAME, AND LIQUID CRYSTAL ALIGNMENT FILM USING SAME

The present invention relates to a liquid crystal aligning agent composition including a terminal modifier of a specific chemical structure together with a polyimide or a precursor polymer thereof. 4. The liquid crystal aligning agent composition of claim 1 , wherein the terminal modifier compound represented by Chemical Formula 1 is present in an amount of 0.1% by weight to 20% by weight claim 1 ,. based on the total weight of the liquid crystal aligning agent composition.10. The liquid crystal aligning agent composition of claim 8 , wherein the second polymer is contained in an amount of 0.5% by weight to 40% by weight claim 8 , based on the total weight of the liquid crystal aligning agent composition.11. A method for preparing a liquid crystal alignment film including the steps of:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'coating the liquid crystal aligning agent composition of onto a substrate to form a coating film;'}drying the coating film;irradiating the dried coating film with light or rubbing the coating film to perform alignment treatment; andheat-treating and curing the alignment-treated coating film.12. The method for preparing a liquid crystal alignment film of claim 11 , wherein the step of drying the coating film is performed at a temperature of 50° C. to 150° C.13. The method for preparing a liquid crystal alignment film of claim 11 , wherein the step of heat-treating and curing the alignment-treated coating film is performed at a temperature of 180° C. to 300° C.14. A liquid crystal alignment film comprising an aligned cured product of the liquid crystal aligning agent composition of .15. A liquid crystal display device comprising the liquid crystal alignment film of . This application is a National Phase entry pursuant to 35 U.S.C. § 371 of PCT/KR2019/000160 filed on Jan. 4, 2019, and claims the benefits of filing date of Korean Patent Application No. 10-2018-0007958 filed with Korean Intellectual Property Office on Jan. 22, 2018, the ...

OPTICAL DEVICE

An optical device is described, including a switching layer that includes an anisotropic light-emitting material for absorbing and radiating light and switches alignment of the light-emitting material, an alignment layer in contact with the switching layer, an optical energy conversion means that converts the radiated light into at least one energy form selected from heat and electricity, and a light guide system that is in physical contact with the optical energy conversion means and guides the radiated light to the optical energy conversion means. The switching layer controls transmission of light through the optical device. The alignment layer includes 80 wt % or more of a polyorganosiloxane. 1. An optical device , comprising:a switching layer, comprising an anisotropic light-emitting material for absorbing and radiating light, and switching alignment of the light-emitting material;an alignment layer in contact with the switching layer;an optical energy conversion means, converting radiated light into at least one energy form selected from heat and electricity; anda light guide system in physical contact with the optical energy conversion means and guiding the radiated light to the optical energy conversion means, whereinthe switching layer controls transmission of light through the optical device, andthe alignment layer comprises 80 wt % or more of a polyorganosiloxane.2. The optical device of claim 1 , wherein the polyorganosiloxane is a polymer obtained by hydrolysis and condensation reactions of a silane compound.3. The optical device of claim 1 , wherein the polyorganosiloxane is a polymer obtained by a reaction in presence of a dicarboxylic acid and an alcohol.5. The optical device of claim 1 , wherein the polyorganosiloxane has an epoxy group.6. Use of the optical device of for a window claim 1 , a vehicle claim 1 , a building claim 1 , a greenhouse claim 1 , eyeglasses claim 1 , safety glass claim 1 , an optical instrument claim 1 , a soundproof wall ...

LIQUID CRYSTAL DISPLAY ELEMENT AND METHOD FOR PRODUCING SAME

The invention provides a liquid crystal display element hardly generating drop marks at the time of producing, and having high reliability and improved properties of a liquid crystal display element such as dielectric anisotropy, viscosity, a nematic phase upper limit temperature, or rotational viscosity (γ) without deteriorating the properties of the liquid crystal display element and burn-in properties of the liquid crystal display element, and a method for producing the same. In addition, according to the invention, it is possible to effectively use the liquid crystal display element as a display element of a liquid crystal TV, a monitor, and the like, due to excellent high-response speed, a low frequency of occurrence of burn-in, a low frequency of generation of drop marks at the time of the producing, excellent properties of the liquid crystal display element, and high reliability. 113-. (canceled)15. The liquid crystal display element according to claim 14 , which includes a plurality of pixels claim 14 ,wherein the pixel includes two or more regions having different pretilt angles.16. The liquid crystal display element according to claim 14 ,wherein the first substrate is provided with a common electrode, andthe second substrate is provided with a pixel electrode.17. The liquid crystal display element according to claim 16 ,wherein the alignment film which applies a charge approximately vertically to the first substrate and the second substrate and controls a liquid crystal molecule in the liquid crystal composition layer is provided between the common electrode and the pixel electrode.18. The liquid crystal display element according to claim 14 ,wherein the alignment film includes a polymer which controls the direction of alignment of the liquid crystal molecule in the liquid crystal composition layer or is formed of a cured material of a polymerizable liquid crystal compound.19. The liquid crystal display element according to claim 18 ,wherein the polymer ...

LIQUID-CRYSTAL DISPLAY

The present invention relates to a method of manufacturing a liquid crystal display (LCD) of the polymer stabilized ultra fast (PS-UF) twisted nematic (TN) mode, to an LCD obtained by this method and to an LC medium used therein. 1. An LC display comprising;a) a first substrate and a second substrate, the first substrate being equipped with a first electrode layer and optionally a first alignment layer, the second substrate being equipped with a second electrode layer and optionally a second alignment layer,b) a layer of a nematic liquid crystal (LC) medium containing a chiral additive and having positive dielectric anisotropy being dispensed between the first and the second substrate,c) optionally a first polarizer on the side of the first substrate facing away from the LC layer and a second polarizer on the side of the second substrate facing away from the LC layer, said polarizers preferably being oriented such that their transmission planes for plane-polarized light are at right angles (crossed nicols),wherein the longitudinal axes of the LC molecules are oriented parallel or tilted relative to the planes of the substrates, and the chiral additive induces in the LC molecules of the LC medium a helical twist along an axis perpendicular to the substrates with a given pitch p,wherein layer of the LC medium has a thickness d, and the ratio d/p is ≥0.5,wherein the twist angle of the helical twist of the LC molecules is from 60 to 120°, andwherein the display further comprises a polymer layer deposited on one or both of said first and second electrode or, if present, on one or both of said first and second alignment layer,wherein said polymer layers are formed from one or more polymerizable mesogenic compounds, which are contained in the LC medium at a concentration from 1 to <3%, and which are polymerized in situ after the LC medium has been dispensed between the two substrates.2. The display according to claim 1 , characterized in that the concentration of the ...

Liquid crystal display and method of manufacturing the same

The invention relates to a liquid crystal display utilizing a vertically aligned state of liquid crystal molecules when no voltage is applied and to a method of manufacturing the same. The liquid crystal display includes a monofunctional monomer having a structure expressed by X—R (where X represents an acrylate group or a methacrylate group, and R represents an organic group having a steroid skeleton). A liquid crystal material is sandwiched between substrates which is then irradiated with ultraviolet rays to cure the monofunctional monomer, thereby forming a polymer film at an interface of a substrate. The monofunctional monomer has a hydrophobic skeleton such as an alkyl chain and a photoreactive group on one side of the skeleton.

THIN-FILM BROADBAND AND WIDE-ANGLE DEVICES FOR GENERATING AND SAMPLING POLARIZATION STATES

Exemplary thin-film optical devices have first and second layer groups disposed as a layer stack on a substrate. The first layer group comprises a first PPN layer, a first LCP layer, and a first barrier layer all superposed. The second layer group is superposed relative to the first layer group, and includes a second PPN layer, a second LCP layer, and a second barrier layer all superposed. The first and second layer groups cooperate to polarize multiple wavelengths of an incident light flux in a broadband and/or wide-angle manner Each of the layer groups has an alignment layer, a respective liquid-crystal polymer layer, and a barrier layer. 1. An optical device , comprising:a substrate;a color filter array; andfirst and second retarder layer groups forming a layer stack on the substrate, the first retarder layer group comprising a first alignment layer and a first liquid-crystal-polymer (LCP) layer, the first LCP layer including molecules aligned with molecules in the first alignment layer;the second retarder layer group comprising a second alignment layer and a second LCP layer, the second LCP layer including molecules aligned with molecules of the second alignment layer; anda polarization layer group in the stack, the polarization layer group comprising a respective alignment layer and a respective LCP layer, the respective LCP layer including molecules aligned with molecules of the respective alignment layer, wherein the optical device is pixelated, wherein each pixel is responsive to different respective polarization states of incident light at different colors, wherein the polarization states are linear, elliptical, and/or circular polarization states.2. The optical device of claim 1 , further comprising at least a first barrier layer situated in the stack between the first and second retarder layer groups.3. The optical device of claim 1 , wherein the polarization layer group and at least one of the first and second retarder layer groups are pixelated.4. The ...

POLYMERIZABLE LIQUID CRYSTAL COMPOSITION AND OPTICAL ANISOTROPIC FILM

A subject is a polymerizable liquid crystal composition in which tilt alignment is easily developed and an optical anisotropic film obtained therefrom. A solution is a polymerizable liquid crystal composition containing one or more polymerizable liquid crystal compounds selected from compounds represented by formulas (1-1), (1-2) and (1-3), and a polymerizable liquid crystal compound represented by formula (2-1). In the following formula, for example, Zand Zare hydrogen; Wis independently hydrogen, fluorine or a methoxy; Wand Ware independently hydrogen or methyl; Xis independently a single bond or —CHCH—; and for example, Wis methyl; and Xis —O—; and m1, m2, n1 and n2 are 2 to 15. Moreover, Zis hydrogen or methyl; Ris an alkyl ester-containing substituent; Wis hydrogen; Xis —COO—; Xis —O—, for example; and m3 is 2 to 15 and q1 is 0 to 2. 5. The polymerizable liquid crystal composition according to claim 1 , wherein a ratio of component (A) is 10 to 97% by weight and a ratio of component (B) is 3 to 90% by weight claim 1 , based on the total weight of component (A) and component (B).6. The polymerizable liquid crystal composition according to claim 1 , wherein a ratio of component (A) is 15 to 85% by weight and a ratio of component (B) is 15 to 85% by weight claim 1 , based on the total weight of component (A) and component (B).7. The polymerizable liquid crystal composition according to claim 1 , further comprising a surfactant.8. The polymerizable liquid crystal composition according to claim 7 , wherein the surfactant is any one of vinyl-based polyalkyl acrylates claim 7 , polyalkyl methacrylates claim 7 , polyalkyl vinyl ethers claim 7 , polybutadienes claim 7 , polyolefins and polyvinyl ethers.10. An optical anisotropic film having tilt alignment in an alignment state of a liquid crystal composition claim 1 , obtained by curing the polymerizable liquid crystal composition according to claim 1 , that is coated on a surface treated alignment film.11. An optical ...

LIQUID CRYSTAL DISPLAY DEVICE AND METHOD FOR PRODUCING THE SAME

Provided are a liquid crystal display device that suppresses occurrence of drop marks during production without degrading various properties, such as dielectric anisotropy, viscosity, nematic phase upper limit temperature, rotational viscosity (γ), and ghosting property, and a method for producing the liquid crystal display device. 112-. (canceled)14. The liquid crystal display device according to claim 13 , comprising a plurality of pixels each including two or more domains with pretilt angles different from one another.15. The liquid crystal display device according to claim 13 , wherein the vertical alignment film is in homeotropic alignment or hybrid alignment.16. The liquid crystal display device according to claim 13 , wherein the first substrate has a common electrode and the second substrate has a pixel electrode driven by a thin film transistor.17. The liquid crystal display device according to claim 16 , wherein the pixel electrode has comb-tooth slits that extend in four directions from the center of the pixel so as to form four domains in which the liquid crystal molecules in the liquid crystal composition layer align in different directions.18. The liquid crystal display device according to claim 13 , wherein the liquid crystal composition layer is formed by a dropping method.19. The liquid crystal display device according to claim 13 , wherein the liquid crystal composition contains 30 to 50 mass % of the compound represented by general formula (I) and 30 to 50 mass % of the compound represented by general formula (II). The present invention relates to a liquid crystal display device useful as a constitutional member of a liquid crystal television or the like and a method for producing the liquid crystal display device.Liquid crystal display devices are used in watches, calculators, various measuring instruments, automobile panels, word processors, electronic notepads, printers, computers, televisions, clocks, advertising boards, etc. Representative ...

LIQUID CRYSTAL ALIGNMENT AGENT, LIQUID CRYSTAL ALIGNMENT FILM, AND LIQUID CRYSTAL DISPLAY ELEMENT HAVING THE SAME

The present invention relates to a liquid crystal alignment agent, a liquid crystal alignment film and a liquid crystal display element. The liquid crystal alignment agent includes a polymer composition (A) synthesized by tetracarboxylic dianhydride compound (a) and diamine compound (b), and a solvent (B). The diamine compound (b) includes diamine (b-1) shown as following formula (I) and diamine (b-2): 3. The liquid crystal alignment agent of claim 1 , wherein based on a total amount of the diamine compound (b) as 100 moles claim 1 , an amount of the at least one diamine (b-1) having a structure of formula (I) is 5 moles to 40 moles claim 1 , and an amount of the at least one diamine (b-2) having a structure of formula (II) is 30 moles to 70 moles.4. The liquid crystal alignment agent of claim 1 , wherein a molar ratio [(b-1)/(b-2)] of the at least one diamine (b-1) having a structure of formula (I) to the at least one diamine (b-2) having a structure of formula (II) is 0.1 to 1.2.5. The liquid crystal alignment agent of claim 4 , wherein the molar ratio [(b-1)/(b-2)] of the at least one diamine (b-1) having a structure of formula (I) to the at least one diamine (b-2) having a structure of formula (II) is 0.2 to 1.2.6. The liquid crystal alignment agent of claim 5 , wherein the molar ratio [(b-1)/(b-2)] of the at least one diamine (b-1) having a structure of formula (I) to the at least one diamine (b-2) having a structure of formula (II) is 0.2 to 1.1.7. A liquid crystal alignment film claim 1 , comprising a liquid crystal alignment agent of .8. A liquid crystal display element claim 7 , comprising a liquid crystal alignment film of . This application claims priority to Taiwan Application Serial Number 104124278, filed on Jul. 27, 2015, which is herein incorporated by reference.Field of InventionThe present invention relates to a liquid crystal alignment agent, a liquid crystal alignment film and a liquid crystal display element. More particularly, the present ...

COMPOSITION FOR ALIGNING, DISPLAY PANEL AND METHOD OF MANUFACTURING SAME

A composition for aligning includes a macromolecular compound and a reactive mesogen. The macromolecular compound is formed by a condensation polymerization reaction of a dianhydride monomer, and a diamine monomer including a photo reactive group. Thus, the composition for aligning includes the reactive mesogen, so that the reactive mesogen is not included in a liquid crystal layer. 2. The composition of claim 1 , wherein the first macromolecular compound is formed by a condensation polymerization reaction of the dianhydride monomer claim 1 , and the diamine monomer claim 1 , the diamine monomer comprises a vertical aligning diamine monomer represented by the Chemical Formula 2 and a photo reactive diamine monomer represented by the Chemical Formula 3 claim 1 , andwherein, a molar ratio of the vertical aligning diamine monomer and the photo reactive diamine monomer is about 7:3 to about 3:7.3. The composition of claim 2 , wherein an amount of the photo reactive monomer is about 15 mol % to about 35 mol % based on a total mol forming the first macromolecular compound.4. The composition of claim 1 , further comprising:a second macromolecular compound formed by a condensation polymerization reaction of the dianhydride monomer represented by the Chemical Formula 1, and the diamine monomer represented by the Chemical Formula 2.5. The composition of claim 4 , wherein a molar ratio of the first macromolecular compound and the second macromolecular compound is about 6:4 to about 8:2.6. The composition of claim 4 , wherein an amount of the reactive mesogen is about 1 wt % to about 20 wt % based on a total weight of the first macromolecular compound and the second macromolecular compound.8. The composition of claim 7 , wherein at least one hydrogen atom of the benzene ring of M1 is substituted by an alkyl group having 1 to 20 carbon atoms claim 7 , an alkoxy group having 1 to 20 carbon atoms claim 7 , a fluorine claim 7 , a bromine claim 7 , an iodine claim 7 , an amine group ...

COMPOSITION KIT, LAMINATE AND METHOD FOR PRODUCING SAME, AND BANDPASS FILTER

The present invention provides a composition kit which is suitably used for more convenient production of a bandpass filter with reduced angle dependence, a laminate and a method for producing the same, and a bandpass filter. The composition kit of the present invention includes a first composition containing a liquid crystal compound having a polymerizable group and a dextrorotatory chiral agent, a second composition containing a liquid crystal compound having a polymerizable group and a levorotatory chiral agent, and a third composition containing a color material. 1. A method for producing a bandpass filter comprising a laminate including a reflective laminated film formed of a plurality of light reflecting layers disposed adjacent to one another and a light absorbing layer , the method comprising:a step of applying a first composition containing a liquid crystal compound having a polymerizable group and a dextrorotatory chiral agent to form a coating film and forming a light reflecting layer Xa formed by irradiating the coating film with light and immobilizing a dextrorotatory cholesteric liquid crystalline phase;a step of applying a second composition containing a liquid crystal compound having a polymerizable group and a levorotatory chiral agent to form a coating film and forming a light reflecting layer Xb formed by irradiating the coating film with light and immobilizing a levorotatory cholesteric liquid crystalline phase; anda step of applying a third composition containing a color material to form the light absorbing layer.2. The method for producing a bandpass filter according to claim 1 , wherein the helical twisting power of the dextrorotatory chiral agent is 30 μmor more.3. The method for producing a bandpass filter according to claim 1 , wherein the helical twisting power of the levorotatory chiral agent is 30 μmor more.6. The method for producing a bandpass filter according to claim 1 , wherein the color material is a pigment.7. The method for ...

REACTIVE PERPENDICULAR ALIGNED MATERIAL, LIQUID CRYSTAL DISPLAY PANEL, AND METHOD OF LIQUID CRYSTAL ALIGNMENT

The disclosure provides a reactive perpendicular aligned material, a liquid crystal display panel, and a method for aligning liquid crystals, a general structural formula of the reactive perpendicular aligned material is A-Z—R, A is —CH═CH—COOH; Z is 6. A liquid crystal display panel according to claim 3 , wherein in the liquid crystal layer claim 3 , content of the reactive perpendicular aligned materials is 0.1%˜5 wt %; content of the reactive monomer is 0.01˜0.1 wt %.7. The liquid crystal display panel according to claim 3 , wherein the first substrate and the second substrate are a CF substrate and a TFT substrate respectively; the first electrode and the second electrode are a common electrode and a pixel electrode respectively.9. The method for aligning liquid crystals according to claim 8 , wherein in the liquid crystal layer in the liquid crystal display panel in the step 1 claim 8 , content of the reactive perpendicular aligned materials is 0.1%˜5 wt %; content of the reactive monomer is 0.01˜0.1 wt %.10. The method for aligning liquid crystals according to claim 8 , wherein in the step 2 and step 3 claim 8 , a value of the voltage applied to the two sides of the liquid crystal layer is 15˜25V; in the step 3 claim 8 , intensity of the UV light radiated on the liquid crystal display panel is 50˜85 mW/cm; a wavelength of the UV light is 365 nm. The present disclosure relates to a display technology field, and more particularly to a reactive perpendicular aligned material, a liquid crystal display panel, and a method of liquid crystal alignment.With the development of the display technology, flat display devices such as a liquid crystal display (LCD) are widely employed in various consumer electronics like a mobile phone, a television, personal digital assistance, a digital camera, a laptop, a desktop computer, locating in the mainstream of display devices.Most of liquid crystal display devices on the market are backlight liquid crystal displays, including ...

REACTIVE PERPENDICULAR ALIGNED ORGANOSILICON MATERIAL AND MANUFACTURE METHOD OF LIQUID CRYSTAL DISPLAY PANEL

The disclosure provides a reactive perpendicular aligned organosilicon material and a manufacture method of a liquid crystal display panel, a general structural formula of the reactive perpendicular aligned organosilicon material is A-R, A is —SiCl; R represents a linear chained or a branched chained alkyl group with 5˜20 C atoms, a CHgroup in the alkyl group is substituted by a phenyl group, a naphthenic base, —CONH—, —COO—, —O—CO—, —S—, —CO— or —CH═CH—, or a F atom or a Cl atom substitutes for a H atom in the alkyl group. A Cl atom in the reactive perpendicular aligned organosilicon material and —OH on a surface of the substrate without a PI film can form a hydrogen bond, leading to vertical arrangement of liquid crystal molecules. 1. A reactive perpendicular aligned organosilicon material , whose general structural formula is A-R ,{'sub': '3', 'wherein A is —SiCl;'}{'sub': '2', 'R represents a linear chained or a branched chained alkyl group with 5˜20 C atoms, a CHgroup in the alkyl group is substituted by a phenyl group, a naphthenic base, —CONH—, —COO—, —O—CO—, —S—, —CO— or —CH═CH—, or a F atom or a Cl atom substitutes for a H atom in the alkyl group.'}3. A manufacture method of a liquid crystal display panel , comprising following steps:step 1, providing a CF substrate, a TFT substrate, and a liquid crystal mixture;wherein a first electrode is disposed on a surface of a side of the CF substrate, a second electrode is disposed on a surface of a side of the TFT substrate;{'sub': 3', '2, 'the liquid crystal mixture comprising liquid crystal molecules, reactive perpendicular aligned organosilicon materials, and reactive monomers, wherein a general structural formula of the reactive perpendicular aligned organosilicon material is A-R, A is —SiCl; R represents a linear chained or a branched chained alkyl group with 5˜20 C atoms, a CHgroup in the alkyl group is substituted by a phenyl group, a naphthenic base, —CONH—, —COO—, —O—CO—, —S—, —CO— or —CH═CH—, or a F atom ...

ALIGNMENT COMPOSITION, LIQUID CRYSTAL DISPLAY PANEL AND METHOD OF MANUFACTURING SAME

An alignment composition an alignment composition includes an alignment polymer and a reactive mesogen. The alignment polymer includes a polyimide backbone and a vertical alignment side chain combined with the polyimide backbone. The reactive mesogen may be represented by the following Chemical Formula 1. This application claims priority to Korean Patent Application No. 10-2014-0097165, filed on Jul. 30, 2014, and Korean Patent Application No. 10-2015-0099015, filed on Jul. 13, 2015, and all the benefits accruing therefrom under 35 U.S.C. §119, the contents of both of which are incorporated by reference herein in their entireties.1. FieldThe inventive concept relates to an alignment composition. More particularly, the inventive concept relates to an alignment composition capable of improving afterimage characteristics of a display panel, a display panel formed using the alignment composition, and a method of manufacturing a display panel using the alignment composition.2. Description of the Related ArtLiquid crystal display apparatuses are one type of flat panel display (FPD). In a liquid crystal display apparatus, voltages are applied to liquid crystal molecules to adjust alignment of the molecules, thereby changing the optical characteristics of a liquid crystal cell, such as birefringence, optical activity, dichroism and light scattering, to display an image.The liquid crystal display apparatus includes a display panel and a backlight assembly. Liquid crystal molecules of the display panel need to be aligned in a direction to have uniform brightness and high contrast ratio.Recently, an alignment composition for liquid crystal molecules in a display panel (i.e., an alignment composition), which includes a reactive mesogen as a side chain of an alignment polymer, has been used to improve the transmissivity and the response speed of the liquid crystal display apparatus. However, when the reactive mesogen is included in the alignment polymer as a side chain of the ...

LIQUID CRYSTAL DISPLAY DEVICE

An alignment film is given a 2-layer structure comprising a photoalignment film that is photoalignable and a low-resistivity alignment film whose resistivity is smaller than that of the photoalignment film. The photoalignment film is formed by a polyimide whose precursor is polyamide acid alkyl ester, the number molecular weight of the photoalignment film is large, and the stability of alignment of the photoalignment film by photoalignment is excellent. The low-resistivity alignment film is formed by a polyimide whose precursor is polyamide acid, the number molecular weight of the low-resistivity alignment film is small, and the resistivity of the low-resistivity alignment film is small. The 2-layer structure alignment film can be maintaining an excellent photoalignment characteristic, so DC afterimages can be controlled. 1. An alignment film varnish for a liquid crystal display device comprising:a first compound including photodegradable polymer, anda second compound including polyamide acid;wherein the second compound has higher affinity with an Indium Tin Oxide than that of the first compound.2. The alignment film varnish according to claim 1 ,wherein the alignment film varnish is utilized for forming a photo alignment film.3. The alignment film varnish according to claim 1 ,wherein the second compound has higher affinity with an organic passivation film of the liquid crystal display device than that of the first compound.4. The alignment film varnish according to claim 1 ,wherein the photodegradable polymer is a polyamide acid ester.5. The alignment film varnish according to claim 1 ,wherein a resistance of imidized first compound is higher than a resistance of imidized second compound.6. The alignment film varnish according to claim 1 , wherein a molecular weight of the first compound is larger than that of the second compound.7. A liquid crystal display device comprising:an alignment film formed by imidizing an alignment film varnish; andan electrode having a ...

Device for regulating the entry of light

The application relates to a device for regulating the entry of light into a room, which comprises a switchable layer of specific design comprising a twisted nematic liquid-crystalline medium and a dichroic compound.

LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL PANEL

The present invention provides a polymerizable monomer, a liquid crystal composition containing the polymerizable monomer and a vertical alignment liquid crystal panel. The polymerizable monomer which the present invention provides may generate free radicals more easily under the UV exposure, so as to solve the RM residue due to the improvement of the curing ability of the RM and thus improve the image sticking issue of the liquid crystal panel. 2. The liquid crystal composition according to claim 1 , wherein the liquid crystal molecule is a vertical alignment liquid crystal molecule.3. The liquid crystal composition according to claim 1 , wherein the liquid crystal composition is a liquid crystal composition of one-drop filling technology.5. The liquid crystal composition according to claim 4 , wherein the liquid crystal molecule is a vertical alignment liquid crystal molecule.6. The liquid crystal composition according to claim 4 , wherein the liquid crystal composition is a liquid crystal composition of one-drop filling technology.73. A liquid crystal panel comprising a first transparent substrate and a second transparent substrate which are equipped with an alignment film claim 4 , respectively claim 4 , wherein a liquid crystal composition according to claim 4 , claim 4 , or is dispersed and distributed on surfaces of the alignment films of the first transparent substrate and the second transparent substrate.8. The liquid crystal panel according to claim 7 , wherein the alignment film is a vertical alignment type alignment film.9. The liquid crystal panel according to claim 7 , wherein the first transparent substrate is a color filter substrate claim 7 , and the second transparent substrate is a thin film transistor array substrate.10. The liquid crystal panel according to claim 7 , wherein the liquid crystal composition is a liquid crystal composition of one-drop filling technology. The present invention relates to a liquid crystal composition, especially ...

LIQUID CRYSTAL ALIGNMENT COMPOSITION, METHOD OF PREPARING LIQUID CRYSTAL ALIGNMENT FILM, AND LIQUID CRYSTAL ALIGNMENT FILM, AND LIQUID CRYSTAL DISPLAY USING THE SAME

The present invention relates to a liquid crystal alignment composition comprising first liquid crystal alignment polymer; second liquid crystal alignment polymer; and a cross-linking agent compound, a method for preparing a liquid crystal alignment film using the same, a liquid crystal alignment film and a liquid crystal display using the same. 3. The liquid crystal alignment composition according to claim 1 , wherein in the Chemical Formula 8 claim 1 , one of Ato Ais nitrogen claim 1 , and the others are carbon.4. The liquid crystal alignment composition according to claim 1 , wherein in the Chemical Formula 8 claim 1 , one of Aand Ais nitrogen and the other is carbon claim 1 , and Aand Aare carbon.5. The liquid crystal alignment composition according to claim 1 , wherein in the Chemical Formula 8 claim 1 , Ais nitrogen claim 1 , Ris hydrogen claim 1 , and a is 1.7. The liquid crystal alignment composition according to claim 1 , wherein the first liquid crystal alignment polymer and the second liquid crystal alignment polymer are included at a weight ratio of 5:95 to 95:5.9. The liquid crystal alignment composition according to claim 1 , wherein in the Chemical Formula 9 claim 1 ,{'sup': '6', 'Ais a C1-10 alkylene group,'}J is 2,{'sup': 2', '3, 'Land Lare each independently, a C1-5 alkylene group, and'}{'sup': 6', '7, 'Rand Rare each independently, the silicon-containing monovalent functional group.'}11. A method for preparing a liquid crystal alignment film claim 1 , comprising steps of:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'applying the liquid crystal alignment composition of on a substrate to form a coating;'}drying the coating;irradiating light to the coating or rubbing the coating to progress alignment treatment; andheat treating the alignment-treated coating to cure.13. A liquid crystal alignment film comprising the aligned and cured product of the liquid crystal alignment composition of .14. A liquid crystal display comprising the liquid crystal ...

LIQUID CRYSTAL DISPLAY DEVICE

The present invention provides a liquid crystal display device that can retain a favorable VHR and a low residual DC voltage and minimize display unevenness such as stains and image sticking, in long-term use at high temperatures. The liquid crystal display device includes a first substrate including a pixel electrode; a second substrate facing the first substrate; a liquid crystal layer sandwiched between the first substrate and the second substrate; an aromatic polyimide-based alignment film disposed on at least one of the first substrate and the second substrate; and a radical generator capable of supplying a radical to the liquid crystal layer upon being irradiated with light, the liquid crystal layer containing a liquid crystal compound with an alkenyl group, the aromatic polyimide-based alignment film containing at least one polymer selected from a polyimide and a polyamic acid and being in no contact with the pixel electrode, the at least one polymer containing an aromatic tetracarboxylic dianhydride monomer unit. 1. A liquid crystal display device comprising:a first substrate including a pixel electrode;a second substrate facing the first substrate;a liquid crystal layer sandwiched between the first substrate and the second substrate;an aromatic polyimide-based alignment film disposed on at least one of the first substrate and the second substrate; anda radical generator capable of supplying a radical to the liquid crystal layer upon being irradiated with light,the liquid crystal layer containing a liquid crystal compound with an alkenyl group,the aromatic polyimide-based alignment film containing at least one polymer selected from a polyimide and a polyamic acid and being in no contact with the pixel electrode,the at least one polymer containing an aromatic tetracarboxylic dianhydride monomer unit.2. The liquid crystal display device according to claim 1 ,wherein the radical generator generates a radical upon being irradiated with ultraviolet light or ...

LIQUID CRYSTAL COMPOSITION

The present application relates to a liquid crystal composition, a liquid crystal cell, a liquid crystal film, and methods of preparing the same. As an exemplary liquid crystal composition, according to the present application can provide a liquid crystal layer aligned without a special alignment layer. According to the liquid crystal composition, all of the liquid crystal cell, in which the liquid crystal layer is maintained in a non-polymerized state, and the liquid crystal film prepared by polymerizing the liquid crystal layer can be provided. 1. A liquid crystal composition , comprising:a photo-alignment material comprising a halogen element; anda liquid crystal compound.3. The liquid crystal composition of claim 1 , wherein the liquid crystal compound is comprised in an amounts of 30 parts by weight to 300 parts by weight claim 1 , relative to 100 parts by weight of the photo-alignment material including the halogen element.4. The liquid crystal composition of claim 1 , wherein the liquid crystal compound is a polymerized liquid crystal compound or a non-polymerized liquid crystal compound.5. The liquid crystal composition of claim 1 , further comprising a solvent.6. The liquid crystal composition of claim 5 , wherein the solvent is cyclopentanone claim 5 , cyclohexanone claim 5 , chlorobenzene claim 5 , N-methylpyrrolidone claim 5 , toluene claim 5 , xylene claim 5 , mesitylene claim 5 , cymene claim 5 , dimethylsulfoxide claim 5 , dimethylformamide claim 5 , chloroform claim 5 , gamma butyrolactone claim 5 , or tetrahydrofuran.7. A liquid crystal film claim 5 , comprising:a substrate layer; and{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'a liquid crystal layer formed by the liquid crystal composition of formed on the substrate layer and a liquid crystal compound is present in an aligned state in the liquid crystal layer.'}8. The liquid crystal film of claim 7 , wherein the substrate layer is a substrate layer without orientation and the liquid crystal ...

POLARIZING ELEMENT, CIRCULARLY POLARIZING PLATE, AND IMAGE DISPLAY DEVICE

An object of the present invention is to provide a polarizing element which has an excellent antireflection function as being applied to an image display device; and a circularly polarizing plate and an image display device, each of which has the polarizing element. The polarizing element of an embodiment of the present invention has an alignment film and an anisotropic light-absorbing film formed using a dichroic substance, in which a degree S of alignment of the anisotropic light-absorbing film is 0.92 or more, and an average refractive index nat a wavelength of 400 to 700 nm of the alignment film is 1.55 to 2.0. 1. A polarizing element comprising:an alignment film; andan anisotropic light-absorbing film formed using a dichroic substance,wherein a degree S of alignment of the anisotropic light-absorbing film is 0.92 or more, and{'sub': 'ave', 'an average refractive index nat a wavelength of 400 to 700 nm of the alignment film is 1.55 to 2.0.'}2. The polarizing element according to claim 1 ,wherein an in-plane refractive index anisotropy Δn at a wavelength of 550 nm of the alignment film is 0.10 or more.3. The polarizing element according to claim 2 ,wherein the refractive index anisotropy Δn is 0.20 or more.4. The polarizing element according to claim 1 ,{'sub': 'ave', 'wherein the average refractive index nis 1.55 to 1.80.'}5. The polarizing element according to claim 1 ,{'sub': '550', 'wherein an average refractive index nat a wavelength of 550 nm of the alignment film is 1.55 to 1.75.'}6. The polarizing element according to claim 1 ,{'sub': 450', '550, 'wherein a ratio of an average refractive index nat a wavelength of 450 nm of the alignment film to the average refractive index nat a wavelength of 550 nm of the alignment film is 1.0 or more.'}7. The polarizing element according to claim 1 ,{'sub': 550', '550, 'wherein in a case where a refractive index of the anisotropic light-absorbing film is defined as Nxand a refractive index of the alignment film is ...

Photoalignment Materials Having Improved Adhesion

The present disclosure provides for new photoalignment (co)polymer materials which demonstrate improved adhesion to a substrate. The (co)polymeric structure includes at least one photochemically active chromophore and at least one adhesion promoter group. Articles of manufacture, optical elements, ophthalmic elements and liquid crystal cells which include at least one photoalignment layer made from the photoalignment (co)polymer materials and methods for formation are also disclosed. 2. The article of manufacture of claim 1 , wherein the article is an active liquid crystal cell claim 1 , a passive liquid crystal cell claim 1 , an optical element claim 1 , or an ophthalmic element.4. The optical element of claim 3 , wherein the optical element is an ophthalmic element claim 3 , a display element claim 3 , a window claim 3 , a mirror claim 3 , an active liquid crystal cell element claim 3 , or a passive liquid crystal cell element.5. The optical element of claim 3 , wherein the at least partial layer has an adhesion to the surface of the substrate having a value of 5% to 100% adherence as measured by cross-hatch adhesion tape test.6. The optical element of claim 3 , wherein the first at least partial layer is at least partially aligned by exposure to polarized electromagnetic radiation.7. The optical element of claim 6 , further comprising one or more additional at least partial layers on at least a portion of the surface of the substrate claim 6 , wherein the one or more additional layers are selected from a tie layer claim 6 , a primer layer claim 6 , an abrasion resistant coating claim 6 , a hard coating claim 6 , a protective coating claim 6 , a reflective coating claim 6 , a photochromic coating claim 6 , an anti-reflective coating claim 6 , a linearly polarizing coating claim 6 , a circularly polarizing coating claim 6 , an elliptically polarizing coating claim 6 , a transitional coating claim 6 , a liquid crystal material layer claim 6 , an alignment material ...

Liquid crystal composition and liquid crystal optical device

To provide a high quality liquid crystal optical device irrespective of the size of the liquid crystal optical device, while simplifying the production process, and a liquid crystal composition suitable for such a liquid crystal optical device. The liquid crystal composition of the present invention is a liquid crystal composition comprising a liquid crystal compound which shows liquid crystallinity and which is a non-curable compound, a liquid crystalline curable compound having a polymerizable functional group, and a non-liquid crystalline curable compound having a polymerizable functional group, wherein the content of the non-liquid crystalline curable compound is larger than the content of the liquid crystalline curable compound, and the total amount of the liquid crystalline curable compound and the non-liquid crystalline curable compound is at least 8 mass % and less than 20 mass % of the entirety.

LIQUID CRYSTAL ARTICLE AND FABRICATION THEREOF

Provided are liquid crystal articles and methods for forming the same. The liquid crystal articles comprise a substrate and an alignment layer deposited over the substrate. The alignment layer includes a molecular crystalline material formed from a lyotropic liquid crystal material. The liquid crystal device includes a thermotropic liquid crystal layer deposited over the alignment layer. 1. An article comprising:a first substrate and second substrate;a molecular alignment layer having a thickness in a range from 30 to 100 nanometers and comprising a molecular crystalline material formed from lyotropic liquid crystal material and in contact with the first substrate; anda thermotropic liquid crystal layer comprising thermotropic liquid crystal molecules disposed between the first substrate and second substrate and in contact with the molecular alignment layer.2. (canceled)3. (canceled)4. The article according to claim 1 , further comprising a surface energy modification agent between the molecular alignment layer and the thermotropic liquid crystal layer.5. The article according to claim 4 , wherein the surface modification agent comprises a surfactant.6. The article according to claim 1 , wherein the substrate further comprises a primer layer in contact with the molecular alignment layer.13. The article according to claim 1 , wherein the molecular alignment layer forms discrete structures that are isolated from each other on the substrate.14. The article according to claim 13 , wherein the discrete structures are separated from adjacent discrete structures by a first distance value and have a first height value from a surface of the substrate and the first distance value is less than 10 micrometers and greater than 500 times the first height value.15. An optical component comprising:a substrate;a molecular alignment layer having a thickness in a range from 30 to 100 nanometers and comprising a molecular crystalline material formed from lyotropic liquid crystal ...

ALIGNMENT LAYER AND LIQUID CRYSTAL DISPLAY INCLUDING THE SAME

An alignment layer includes at least one of photostabilizers expressed by Formula 1 and Formula 2. 4. The alignment layer of claim 1 , whereinthe alignment layer further comprises:a first material including a dianhydride based monomer; anda second material including a diamine based monomer.5. The alignment layer of claim 4 , whereinthe photostabilizer is bound to the diamine based monomer.6. The alignment layer of claim 4 , whereinthe first material comprises an alicyclic dianhydride based monomer, andthe second material comprises at least one of an aromatic diamine based monomer, an aliphatic ring substituted aromatic diamine based monomer, a photoreactive diamine based monomer, and an alkylated aromatic diamine based monomer.9. The liquid crystal display of claim 8 , whereinthe liquid crystal molecules comprise an alkenyl group.13. The liquid crystal display of claim 9 , whereinthe alignment layer further comprises:a first material comprising a dianhydride based monomer; anda second material comprising a diamine based monomer.14. The liquid crystal display of claim 13 , whereinthe photostabilizer is bound to the diamine based monomer.15. The liquid crystal display of claim 13 , whereinthe first material comprises an alicyclic dianhydride based monomer, andthe second material comprises at least one of an aromatic diamine based monomer, an aliphatic ring substituted aromatic diamine based monomer, a photoreactive diamine based monomer, and an alkylated aromatic diamine based monomer. This application claims priority to and the benefit of Korean Patent Application No. 10-2015-0109433, filed on Aug. 3, 2015, and all the benefits accruing therefrom under 35 U.S.C., the content of which in its entirety is herein incorporated by reference.(a) FieldThe present invention relates to an alignment layer and a liquid crystal display including the same.(b) Description of the Related ArtA liquid crystal display (LCD) is a kind of flat panel display which is widely used. The ...

DISPLAY PANEL AND MANUFACTURING METHOD THEREOF

A manufacturing method of a display panel includes following steps. A pixel array substrate and an opposite substrate are provided. An interface layer is formed on the pixel array substrate or on the opposite substrate, and the interface layer includes at least one dianhydride compound, a polyimide precursor obtained by subjecting at least one diamine compound to a reaction, and a polyimide compound obtained by subjecting the polyimide precursor to imidization. The polyimide compound includes at least one diamine compound having a photo-reactive side chain. 1. A manufacturing method of a display panel , comprising:providing a pixel array substrate and an opposite substrate; andforming an interface layer on the pixel array substrate or the opposite substrate, the interface layer comprising at least one dianhydride compound, a polyimide precursor obtained by subjecting at least one diamine compound to a reaction, and a polyimide compound obtained by subjecting the polyimide precursor to imidization, wherein the polyimide compound includes at least one diamine compound having a photo-reactive side chain.2. The manufacturing method of claim 1 , further comprising:assembling the pixel array substrate and the opposite substrate and injecting a liquid crystal material composition into a space between the pixel array substrate and the opposite substrate, wherein the liquid crystal material composition includes a liquid crystal material and a reactive monomer; andperforming an irradiation process, such that the interface layer and the liquid crystal material composition are polymerized to form at least one polymer layer.5. The manufacturing method of claim 1 , wherein the at least one diamine compound accounts for 50 mol % of a total sum of the interface layer claim 1 , and the at least one dianhydride compound accounts for 50 mol % of the total sum of the interface layer.6. The manufacturing method of claim 1 , wherein the at least one diamine compound further comprises an ...

LIQUID CRYSTAL DISPLAY DEVICE AND ALIGNMENT FILM MATERIAL THEREOF

To form an optical alignment film having large anchoring strength and suppress an AC afterimage of a liquid crystal display device, in a liquid crystal display device of an IPS mode. In an alignment film material subjected to optical alignment processing, polyimide which becomes a rigid high molecule and polyimide which becomes a flexible high molecule are mixed and used. The material of the present invention can easily rotate oligomer after irradiating polarized ultraviolet rays and improve a UV-absorbed two-color ratio of an alignment film. Accordingly, an anchoring strength for liquid crystals by the alignment film is large to suppress an AC afterimage. 2. The alignment material according to claim 1 ,wherein (Chem. 1) is 1,2-bis(4-aminophenyl)ethane, (Chem. 5 is a paraphenylene diamine derivative), (Chem. 3 is 1,3-dimethyl cyclobutane tetracarboxylic acid dianhydride) and (Chem. 4 is 4,4′-Diaminodiphenyl ether).3. The alignment film material according to :wherein the first alignment film material produced using by a dehydrated condensate of (Chem. 1) and (Chem. 3) or (Chem. 4) and (Chem. 3), or, esterifying the dehydrated condensate of (Chem. 1) and (Chem. 3) or (Chem. 4) and (Chem. 3) is more than 0 wt % and equal to or less than 80 wt % with respect to a total weight of alignment film material.4. The alignment film material according to :wherein the first alignment film material produced using by a dehydrated condensate of (Chem. 1) and (Chem. 3) or (Chem. 4) and (Chem. 3), or, esterifying the dehydrated condensate of (Chem. 1) and (Chem. 3) or (Chem. 4) and (Chem. 3) is more than 20 wt. % and equal to or less than 60 wt. % with respect to a total weight of the alignment film material.5. The alignment film material according to claim 1 , wherein the alignment material is an optical alignment film material.6. The alignment film material according to claim 2 , wherein the alignment film material is an optical alignment film material.7. The alignment film material ...

Alignment film, polymer, and liquid crystal display device

The present invention provides a liquid crystal display device in which image sticking and stains are sufficiently reduced. The present invention relates to an alignment film including: a polymer containing a piperidine skeleton-containing group and/or a quinone group; and a photo-aligning functional group. The present invention also relates to a polymer for use in the alignment film, the polymer containing a piperidine skeleton-containing group and/or a quinone group. The present invention also relates to a liquid crystal display device including: the alignment film; a pair of substrates; and a liquid crystal layer disposed between the substrates, wherein the alignment film is disposed between at least one of the substrates and the liquid crystal layer.

POLYMER FOR LIQUID CRYSTAL ALIGNING AGENT, LIQUID CRYSTAL ALIGNING AGENT COMPOSITION COMPRISING THE SAME, AND LIQUID CRYSTAL ALIGNING FILM AND LIQUID CRYSTAL DISPLAY DEVICE USING THE SAME

The present invention relates to a polymer which is excellent in terms of liquid crystal alignment property, durability, and electrical characteristics, and thus is suitable for use in a liquid crystal aligning agent, a liquid crystal aligning agent composition including the same, a liquid crystal alignment film formed from the liquid crystal aligning agent composition, and a liquid crystal display device including the liquid crystal alignment film. 2. The polymer for a liquid crystal aligning agent of claim 1 , wherein in Qto Qof the Chemical Formula 4 claim 1 , one of Qand Qis nitrogen and the other is carbon claim 1 , and Qand Qare carbon.3. The polymer for a liquid crystal aligning agent of claim 1 , wherein in Qto Qof the Chemical Formula 4 claim 1 , one of Qand Qis nitrogen and the other is carbon claim 1 , and Qand Qare carbon.4. The polymer for a liquid crystal aligning agent of claim 1 , wherein in the Chemical Formula 4 claim 1 , Ris hydrogen.7. The polymer for a liquid crystal aligning agent of claim 1 , wherein the polymer for a liquid crystal aligning agent has a weight average molecular weight of 100 g/mol to 200 claim 1 ,000 g/mol.8. A liquid crystal aligning agent composition comprising the polymer for a liquid crystal aligning agent of .9. A method for preparing a liquid crystal alignment film comprising the steps of:{'claim-ref': {'@idref': 'CLM-00008', 'claim 8'}, 'coating the liquid crystal aligning agent composition of onto a substrate to form a coating film;'}drying the coating film;irradiating the coating film immediately after the drying step with light or rubbing the coating film to perform alignment treatment; andheat-treating and curing the alignment-treated coating film.10. The method for preparing a liquid crystal alignment film of claim 9 , wherein the liquid crystal aligning agent composition is dissolved or dispersed in an organic solvent.11. The method for preparing a liquid crystal alignment film of claim 9 , wherein the step of ...

Cinnamic acid derivative, polymer thereof, and liquid crystal alignment layer comprising cured product thereof

Provided is a liquid crystal alignment layer of which a constituent member is a compound represented by the general formula (I).

LCD DEVICE

Provided is an LCD device having excellent high speed responsiveness. This LCD device contains a polymer or a copolymer in a liquid crystal composition sandwiched between two transparent substrates, at least one of which has an electrode, and the content of the polymer or the copolymer is 1% by mass or greater and less than 40% by mass of the total mass of the liquid crystal composition and the polymer or the copolymer. This LCD device can be applied to various operation modes such as TN, STN, ECB, VA, VA-TN, TPS, FFS, a π cell, OCB, and cholesteric liquid crystals. 1. An LCD device , comprising:a liquid crystal composition sandwiched between two transparent substrates, at least one of which has an electr ode,wherein the liquid crystal composition contains a polymer or a copolymer in an amount of 1% by mass or greater and less than 40% by mass with respect to the total mass of the liquid crystal composition and the polymer or the copolymer.2. The LCD device according to claim 1 , comprising:a polymer network as the polymer or the copolymer in the liquid crystal composition; andan alignment layer for aligning a liquid crystal composition on a transparent substrate.3. The LCD device according to claim 2 ,wherein the polymer network has uniaxial refractive index anisotropy, and an optical axis direction or an easy alignment axial direction of the polymer network is the same as an easy alignment axial direction of a low molecular weight liquid crystal.4. The LCD device according to claim 1 ,wherein liquid crystal molecules of a low molecular weight liquid crystal are formed to have a pretilt angle of 0° to 90° with respect to the transparent substrate.5. The LCD device according to claim 2 ,wherein a polymer network layer having a thickness of at least 0.5% or greater of a cell thickness with respect to a cell sectional direction is formed.6. The LCD device according to .wherein a polymer having refractive index anisotropy or an easy alignment axial direction in the ...

Curved liquid crystal display and method of manufacturing the same

A curved liquid crystal display includes a first curved substrate; a second curved substrate facing the first curved substrate; a liquid crystal layer disposed between the first curved substrate and the second curved substrate; a first curved liquid crystal alignment layer disposed between the liquid crystal layer and the first curved substrate and including vertical alignment functional groups; and a second curved liquid crystal alignment layer disposed between the liquid crystal layer and the second curved substrate.

THERMAL CROSSLINK MATERIAL, MANUFACTURE METHOD OF LIQUID CRYSTAL DISPLAY PANEL AND LIQUID CRYSTAL DISPLAY PANEL

Disclosed are thermal crosslink material, a manufacture method of a liquid crystal display panel and a liquid crystal display panel. A structural formula of the thermal crosslink material is 5. The manufacture method of the liquid crystal display panel according to claim 3 , wherein in the liquid crystal compound obtained in the step 1 claim 3 , a content of the thermal crosslink material is 0.1˜5 wt %.6. The manufacture method of the liquid crystal display panel according to claim 3 , wherein in the step 5 claim 3 , an irradiation intensity of the ultraviolet light is 50-100 mW/cm claim 3 , and an irradiation period is 1-5 min claim 3 , and a heating temperature is 110-130° C. claim 3 , and a heating period is 20-30 min.7. The manufacture method of the liquid crystal display panel according to claim 3 , wherein the liquid crystal display panel is a multi-domain vertical alignment type liquid crystal display panel claim 3 , and a plurality of roof shape projections are provided on the one side of the TFT substrate provided in the step 2 where the liquid crystal compound is pre-dropped claim 3 , and a plurality of roof shape projections are provided on the one side of the CF substrate provided in the step 3 where the sealant is pre-dropped.8. The manufacture method of the liquid crystal display panel according to claim 3 , wherein pixel electrodes are provided on the one side of the TFT substrate provided in the step 2 where the liquid crystal compound is pre-dropped claim 3 , and a common electrode is provided on the one side of the CF substrate provided in the step 3 where the sealant is pre-dropped. The present invention relates to a display manufacture field, and more particularly to thermal crosslink material, a manufacture method of a liquid crystal display panel and a liquid crystal display panel.The TFT-LCD (Thin Film Transistor Liquid Crystal Display) possesses advantages of thin body, power saving and no radiation to be widely used in many application ...

LIQUID CRYSTAL COMPOSITION AND A LIQUID CRYSTAL DISPLAY INCLUDING THE SAME

A liquid crystal display including a first substrate, a second substrate disposed opposite the first substrate, and a liquid crystal layer disposed between the first substrate and the second substrate. The liquid crystal layer includes a liquid crystal composition. The liquid crystal composition includes at least one of liquid crystal compounds including a cyclopentadienyl group. 2. The display of claim 1 , wherein the liquid crystal compounds of Formulae 1 to 3 are in an amount of more than about 0% by weight to about 50% by weight with respect to the liquid crystal composition.8. The display of claim 1 , wherein the liquid crystal composition has a negative dielectric anisotropy.10. The display of claim 1 , wherein the liquid crystal layer is driven in a vertical alignment mode.12. The composition of claim 11 , wherein the liquid crystal compounds of Formulae 1 to 3 are in an amount of more than about 0% by weight to about 50% by weight with respect to the liquid crystal composition.18. The composition of claim 11 , wherein the composition has a negative dielectric anisotropy.20. The composition of claim 11 , wherein the composition is used in a vertical alignment mode liquid crystal display. The present application claims priority under 35 U.S.C. § 119 to Korean Patent Application No. 10-2016-0102296, filed on Aug. 11, 2016 in the Korean Intellectual Property Office, the disclosure of which is incorporated by reference herein in its entirety.Exemplary embodiments of the present invention relate to a liquid crystal composition, and more particularly to a liquid crystal display including the same.A liquid crystal display may include a first substrate, a second substrate, and a liquid crystal layer. The first substrate may include a plurality of pixel electrodes. The second substrate may include a common electrode. The liquid crystal layer may be disposed between the first substrate and the second substrate. The liquid crystal display may display an image. The ...

LIQUID CRYSTAL DISPLAY AND LIQUID CRYSTAL COMPOSITION COMPRISED THEREOF

A liquid crystal display includes a first substrate, a second substrate opposing the first substrate, an electrode portion provided on at least one of the first and second substrates, and a liquid crystal layer provided between the first substrate and the second substrate and including a liquid crystal composition. The liquid crystal composition includes a liquid crystal compound including a cyclohexenylene group, and provides the liquid crystal display with low rotary viscosity and high voltage holding ratio. 2. The liquid crystal display of claim 1 , wherein the liquid crystal compound of Chemical Formula 1 is present in an amount exceeding 0 wt % but less than 15 wt % based on a total weight of the liquid crystal composition.10. The liquid crystal display of claim 9 , wherein any combination of the liquid crystal compound of Chemical Formula 1 and at least one of the liquid crystal compound of Chemical Formula 2 and the liquid crystal compound of Chemical Formula 3 claim 9 , is present in an amount exceeding 0 wt % but less than 15 wt % based on a total weight of the liquid crystal composition.12. The liquid crystal display of claim 11 , wherein the polymer obtained by polymerizing the monomer represented by Chemical Formula 4 includes an oxime or acetophenone photoinitiator.13. The liquid crystal display of claim 1 , further comprising a spacer between the first substrate and the second substrate claim 1 ,wherein the spacer is an organic polymer material including an oxime or acetophenone photoinitiator.14. The liquid crystal display of claim 1 , further comprising a color filter provided on one of the first and second substrates and displaying color claim 1 ,wherein the color filter is an organic polymer material including an oxime or acetophenone photoinitiator.15. The liquid crystal display of claim 1 , further comprising a black matrix provided on one of the first and second substrates and blocking transmitted light claim 1 ,wherein the black matrix includes ...

LIQUID CRYSTAL DISPLAY AND MANUFACTURING METHOD THEREOF

An exemplary embodiment of the present invention provides a liquid crystal display including: a first substrate; a second substrate configured to be separated from and overlap the first substrate; a liquid crystal layer disposed between the first substrate and the second substrate and including liquid crystal molecules; a first polymer layer disposed between the first substrate and the liquid crystal layer; a second polymer layer disposed between the second substrate and the liquid crystal layer; and a plurality of protrusions disposed in at least one of a first position between the first polymer layer and the liquid crystal layer and a second position between the second polymer layer and the liquid crystal layer, in which the protrusions include polymers of reactive mesogens, and the first polymer layer and the second polymer layer include a polymer of a compound represented by Chemical Formula 1. 5. The liquid crystal display of claim 1 , further comprising:a first electrode disposed between the first substrate and the liquid crystal layer; anda second electrode disposed between the second substrate and the liquid crystal layer,wherein the first polymer layer and the second polymer layer are respectively bonded to the first electrode and the second electrode.6. The liquid crystal display of claim 5 , wherein bonding of the first polymer layer and the first electrode and bonding of the second polymer layer and the second electrode are hydrogen bonding.7. The liquid crystal display of claim 6 , wherein Ra of the first polymer layer is hydrogen-bonded to the first electrode claim 6 , and Ra of the second polymer layer is hydrogen-bonded to the second electrode.8. The liquid crystal display of claim 1 , wherein P claim 1 , P claim 1 , or Pof the compound represented by Chemical Formula 1 polymerizes with P claim 1 , P claim 1 , or Pof the compound represented by Chemical Formula 1 adjacent thereto.9. The liquid crystal display of claim 1 , wherein the compound ...

MANUFACTURE METHOD OF LIQUID CRYSTAL DISPLAY PANEL

The present invention provides a manufacture method of a liquid crystal display panel. The graphene/PEDOT:PSS composite transparent conductive films replace the traditional ITO transparent conductive films, and a polar material is mixed in the liquid crystal compound of the liquid crystal display panel. The structural formula of the polar material is A-B, wherein the main function of the head group A is to create the larger intermolecular force between the polar material and the graphene/PEDOT:PSS composite transparent conductive films, and the main function of the tail group B is similar with the function of the PI branch to vertically align the liquid crystal molecules in the steric hindrance manner to act the effect of the vertical alignment; i.e. the polar material can generate a larger intermolecular force with the graphene/PEDOT:PSS composite transparent conductive films, and is vertically aligned on the TFT substrate and the CF substrate. 1. A manufacture method of a liquid crystal display panel , comprising steps of:{'b': '1', 'step , providing a TFT substrate and a CF substrate, and a first conductive film and a second conductive film are respectively formed on one sides of the TFT substrate and the CF substrate, and both the first conductive film and the second conductive film are graphene/PEDOT:PSS composite transparent conductive films;'}{'b': '2', 'step , mixing polar material into liquid crystal material to obtain liquid crystal compound;'}a structural formula of the polar material is A-B, whereinA is one or more polar groups connected to B, and the polar group is primary amine, secondary amine, tertiary amine, —OH, —COOH, —SH, —Si(CH3)3 or —CN;{'sub': '2', 'B is a linear or chain branched alkyl having 5-20 C atoms, and a first group obtained after some CHgroup in the alkyl is replaced by phenyl, cycloalkyl, —O—,—CONH—,—COO—,—O—CO— or —CH═CH— group, a second group obtained after some H atom in the alkyl is replaced by F atom or Cl atom, or a third ...

METHOD OF PRODUCING LIQUID CRYSTAL CELL, AND LIQUID CRYSTAL CELL

A method of producing a liquid crystal cell includes: a thin-film forming step of forming, on a surface of electrode-attached substrates including a TFT substrate and a slot substrate, the TFT substrate including a first dielectric substrate, TFTs, and patch electrodes electrically connected to the TFTs, the slot substrate including a second dielectric substrate and a slot electrode supported on the second dielectric substrate and having slots, a thin film so as to cover the patch electrodes and/or the slot electrode; and a light irradiating step of irradiating the thin film with light including p-polarized light to provide the thin film with alignment-regulating capability of aligning liquid crystal molecules to thereby obtain an alignment film. The thin film includes a polymer including a photoreactive functional group and exhibiting the alignment-regulating capability of the thin film in a direction orthogonal to a polarization axis of the p-polarized light. 1. A method of producing a liquid crystal cell , the method comprising:a thin-film forming step of forming, on a surface of at least one electrode-attached substrate of a pair of electrode-attached substrates including a TFT substrate and a slot substrate, the TFT substrate including a first dielectric substrate, a plurality of TFTs supported on the first dielectric substrate, and a plurality of patch electrodes electrically connected to the TFTs, the slot substrate including a second dielectric substrate and a slot electrode supported on the second dielectric substrate and having a plurality of slots, a thin film so as to cover the patch electrodes and/or the slot electrode; anda light irradiating step of irradiating the thin film with light including p-polarized light to provide the thin film with alignment-regulating capability of aligning liquid crystal molecules to thereby obtain an alignment film,wherein the thin film includes a polymer including a photoreactive functional group and exhibiting the ...