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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 1316. Отображено 100.
11-04-2013 дата публикации

CHLOROFLUOROBENZENE COMPOUND, OPTICALLY ISOTROPIC LIQUID CRYSTAL MEDIUM AND OPTICAL DEVICE

Номер: US20130088658A1
Автор: HASEBA YASUHIRO
Принадлежит:

A liquid crystal compound and a liquid crystal medium are described. The liquid crystal compound is stable to heat and light and has a large dielectric anisotropy and a large optical anisotropy. The liquid crystal medium has a wide temperature range of liquid crystal phase, a large optical anisotropy and a large dielectric anisotropy, and exhibits an optically isotropic liquid crystal phase. The liquid crystal compound has 4 or 5 benzene rings, one of which is a chlorofluorobenzene ring. The liquid crystal medium is characterized in containing the liquid crystal compound and a chiral dopant and exhibiting an optically isotropic liquid crystal phase. 10. The liquid crystal composition of claim 1 , further comprising at least one antioxidant claim 1 , at least one UV absorbent claim 1 , or at least one antioxidant and at least one UV absorbent.11. The liquid crystal composition of claim 1 , wherein the optically isotropic liquid crystal phase does not exhibit two or more colors of diffracted light.12. The liquid crystal composition of claim 1 , wherein the optically isotropic liquid crystal phase exhibits two or more colors of diffracted light.13. The liquid crystal composition of claim 11 , obtained by adding a chiral dopant to a composition having a temperature difference of 3-150° C. between an upper-limit temperature and a lower-limit temperature of co-existence of a chiral nematic phase and an isotropic phase.14. The liquid crystal composition of claim 12 , obtained by adding a chiral dopant to a composition having a temperature difference of 3-150° C. between an upper-limit temperature and a lower-limit temperature of co-existence of a chiral nematic phase and an isotropic phase.15. The liquid crystal composition of claim 11 , obtained by adding a chiral dopant to a composition having a temperature difference of 5-150° C. between an upper-limit temperature and a lower-limit temperature of co-existence of a chiral nematic phase and an isotropic phase.16. The ...

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Номер записи: 1
23-05-2013 дата публикации

Liquid crystal composition and liquid crystal display device

Номер: US20130126782A1
Автор: Manabu Kobayashi, Tetsuji Ishitani, Tomohiro Tamura, Yuko Kawata
Принадлежит: Semiconductor Energy Laboratory Co Ltd

A liquid crystal composition exhibiting a blue phase, which enables higher contrast, and a liquid crystal display device including the liquid crystal composition. The liquid crystal composition contains a chiral agent and liquid crystal containing a compound having three electron-withdrawing groups as end groups of a structure where a plurality of rings including at least one aromatic ring is linked to each other directly or with a linking group laid therebetween. At least one of the three electron-withdrawing groups includes a trifluoromethyl group. The peak of the diffracted wavelength on the longest wavelength side in the reflectance spectrum of the liquid crystal composition is less than or equal to 450 nm, preferably less than or equal to 420 nm. Furthermore, a liquid crystal display device can be provided with the use of the liquid crystal composition.

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Номер записи: 2
23-05-2013 дата публикации

COMPOUND HAVING PROPYL ETHER AS BONDING GROUP, LIQUID CRYSTAL COMPOSITION THEREOF AND LIQUID CRYSTAL DISPLAY DEVICE THEREOF

Номер: US20130126783A1
Автор: Kubo Takahiro, Tanaka Hiroyuki
Принадлежит:

A liquid crystal compound is described, which has stability to heat, light and so forth, keeps a nematic phase in a wide temperature range, has a small viscosity, a suitable optical anisotropy and a suitable elastic constant K, and further has a large negative dielectric anisotropy and an excellent compatibility with other liquid crystal compounds. The liquid crystal compound is represented by formula (1): 2. The compound according to claim 1 , wherein claim 1 , in formula (1) claim 1 , all of Z claim 1 , Z claim 1 , Zand Zis a single bond.6. A liquid crystal composition comprising two or more components claim 1 , containing at least one compound according to claim 1 , as one component.12. The liquid crystal composition according to claim 6 , further containing at least one optically active compound.13. The liquid crystal composition according to claim 6 , further containing at least one antioxidant and/or an ultraviolet absorber.14. A liquid crystal display device claim 6 , comprising the liquid crystal composition according to . The present invention relates to a new liquid crystal compound and a new liquid crystal composition. More specifically, the invention relates to a liquid crystal compound that has a negative dielectric anisotropy (Δ∈), and has a bonding group in which hydrogen in 1-position or 2-position of propyl ether is replaced by fluorine, a liquid crystal composition containing the liquid crystal compound and a liquid crystal display device including the liquid crystal composition.A liquid crystal display device typified by a liquid crystal display panel, a liquid crystal display module and so forth utilizes optical anisotropy, dielectric anisotropy and so forth of a liquid crystal compound (generically meaning a compound having a liquid crystal phase such as a nematic phase or a smectic phase, and a compound having no liquid crystal phase but being useful as a component of a liquid crystal composition, according to the invention). As an operating ...

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Номер записи: 3
30-05-2013 дата публикации

LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL DISPLAY DEVICE

Номер: US20130134355A1
Автор: HIRAOKA Takashi, Saito Masayuki
Принадлежит:

The invention provides a liquid crystal composition satisfying at least one of characteristics such as a high maximum temperature of a nematic phase, a low minimum temperature of the nematic phase, a small viscosity, a large optical anisotropy, a large positive dielectric anisotropy, a large specific resistance, a high stability to ultraviolet light and a high stability to heat, or provides a liquid crystal composition having a suitable balance regarding at least two of the characteristics. A liquid crystal display device containing such a liquid crystal composition is applied as an AM device having a short response time, a large voltage holding ratio, a large contrast ratio, a long service life and so forth, and thus can be suitably used for a liquid crystal projector, a liquid crystal television and so forth. 3. The liquid crystal composition according to claim 2 , wherein the first component is at least one compound selected from the group of compounds represented by formula (1-1).4. The liquid crystal composition according to claim 2 , wherein the first component is at least one compound selected from the group of compounds represented by formula (1-2).5. The liquid crystal composition according to claim 2 , wherein the first component is at least one compound selected from the group of compounds represented by formula (1-5).6. The liquid crystal composition according to claim 2 , wherein the first component is at least one compound selected from the group of compounds represented by formula (1-8).7. (canceled)8. The liquid crystal composition according to of claim 1 , wherein a ratio of the first component is in the range of 5% by weight to 40% by weight and a ratio of the second component is in the range of 5% by weight to 30% by weight based on the total weight of the liquid crystal composition.11. The liquid crystal composition according to claim 10 , wherein the third component is at least one compound selected from the group of compounds represented by ...

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Номер записи: 4
15-08-2013 дата публикации

LIQUID-CRYSTALLINE MEDIUM

Номер: US20130207038A1
Автор: CHOI Chang-Suk, Haensel Helmut, LEE Hee-Kyu, POHLE Andreas, YUN Chang-Jun, YUN Yong-Kuk
Принадлежит: Merck Patent GmBH

The invention relates to a liquid-crystalline medium, characterised in that it contains one or more compounds of the formula IA, 4. Liquid-crystalline medium according to claim 1 , characterised in that Xin formula IA denotes F claim 1 , OCF claim 1 , OCHF claim 1 , CF claim 1 , OCHF claim 1 , OCHFCF claim 1 , OCFCHFCF claim 1 , CF═CF claim 1 , CH═CF claim 1 , OCF═CFor OCH═CF.14. Liquid-crystalline medium according to claim 1 , characterised in that it contains at least two compounds of the formula IA and at least two compounds of the formula IIA.15. Liquid-crystalline medium according to claim 1 , characterised in that it contains in total ≧20% by weight of compounds of the formula IA and compounds of the formula IIB claim 1 , based on the mixture.16. Liquid-crystalline medium according to claim 1 , characterised in that it contains in total ≧20% by weight of compounds of the formula IA and compounds of the formula IIC claim 1 , based on the mixture.17. Liquid-crystalline medium according to claim 1 , characterised in that it has a dielectric anisotropy (Δ∈) of >1.5 at 20° C. and 1 kHz.18. Liquid-crystalline medium according to claim 1 , characterised in that it additionally contains one or more additive(s) selected from the group of the UV stabilisers claim 1 , dopants and antioxidants.19. Liquid-crystalline medium according to claim 1 , characterised in that it additionally contains one or more polymerisable compounds.20. Process for the preparation of a liquid-crystalline medium according to claim 1 , characterised in that one or more compounds of the formula IA and one or more compounds selected from the group of compounds of the formula IIA claim 1 , IIB and IIC as defined in claim 1 , are mixed with one or more mesogenic compounds and optionally also with one or more additives and/or at least one polymerisable compound.21. Use of a liquid-crystalline medium according to for electro-optical purposes.22. Use of the liquid-crystalline medium according to in ...

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Номер записи: 5
05-09-2013 дата публикации

Liquid crystal composition and liquid crystal display device

Номер: US20130228719A2
Автор: Masayuki Saito
Принадлежит: JNC Corp, JNC Petrochemical Corp

Providing a liquid crystal composition satisfies at least one of characteristics like a high maximum temperature of a nematic phase, a low minimum temperature of the 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. Providing a liquid crystal composition has a suitable balance regarding at least two of the characteristics. Providing an AM device has a short response time, a large voltage holding ratio, a large contrast ratio, a long service life and so forth. The liquid crystal composition has a negative dielectric anisotropy and contains a specific compound having a large negative dielectric anisotropy as a first component and a specific three-ring compound having a large optical anisotropy and a negative dielectric anisotropy as a second component, and a liquid crystal display device contains the composition.

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Номер записи: 6
12-09-2013 дата публикации

LIQUID CRYSTAL COMPOUND AND LIQUID CRYSTAL DISPLAY

Номер: US20130235320A1
Автор: Cheng Kung-Lung, Chin Chih-Lung, Lin Jian-Wen, Liu Shih-Hsien, Wu Chun-Ming
Принадлежит: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE

An embodiment of the disclosure provides a liquid crystal compound having the following formula: 10. The liquid crystal compound as claimed in claim 1 , wherein a dielectric anisotropy (Δ∈) of the liquid crystal compound is larger than 45.11. A liquid crystal display claim 1 , comprising:a first substrate;a second substrate disposed opposite to the first substrate; and{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'a liquid crystal layer disposed between the first substrate and the second substrate, wherein the liquid crystal layer comprises the liquid crystal compound as claimed in .'} This application is a Continuation-In-Part of pending U.S. patent application Ser. No. 13/340,257, filed Dec. 29, 2011 and entitled “Liquid crystal compound and liquid crystal display”, which claims priority of Taiwan Patent Application No. 100138436, filed on Oct. 24, 2011, the entirety of which is incorporated by reference herein.This application claims priority of Taiwan Patent Application No. 101137606, filed on Oct. 12, 2012, the entirety of which is incorporated by reference herein.The present invention relates to a liquid crystal compound, and in particular relates to a liquid crystal compound having high dielectric anisotropy.As technology has rapidly developed, various portable electronic products such as mobile phones, laptops, digital cameras, PDA, MP3, MP4, and etc. have become very important in modern day life. Meanwhile, advantages of liquid crystal displays include a small-size, light-weight, and low electricity consumption, and thus they have been frequently used in recent years. In a liquid crystal display, a liquid crystal material, which will affect the performance of a device using the same, plays an important role in the development of liquid crystal displays.A good liquid crystal material should be, for example, stable toward water, air, heat, and light and have an appropriate dielectric anisotropy (Δ∈), birefringence (Δn), and elastic constant (K). An ...

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Номер записи: 7
17-10-2013 дата публикации

TRICYCLIC COMPOUND HAVING A PLURALITY OF CF2O BONDING GROUPS, LIQUID CRYSTAL COMPOSITION, AND LIQUID CRYSTAL DISPLAY DEVICE

Номер: US20130271719A1
Автор: GOTOH YASUYUKI, Kubo Takahiro
Принадлежит:

To provide a liquid crystal compound having a large positive value of dielectric anisotropy and a small viscosity. The compound is represented by formula (1): 5. A liquid crystal composition containing at least one kind of the compound according to .10. The liquid crystal composition according to claim 5 , further containing an optically active compound.11. The liquid crystal composition according to claim 5 , further containing at least one kind selected from an antioxidant and an ultraviolet light absorber.12. A liquid crystal display device including the liquid crystal composition according to . The invention relates to a liquid crystal compound, a liquid crystal composition and a liquid crystal display device. More specifically, the invention relates to a tricyclic compound having a plurality of CFO bonding groups, a liquid crystal composition containing the compound and having a nematic phase, and a liquid crystal display device using the composition.A liquid crystal display device is widely utilized for a display of a personal computer, a television and so forth. The display device utilizes dielectric anisotropy, optical anisotropy or the like of a liquid crystal compound. As an operating mode of the display device, various modes are known, such as a phase change (PC) mode, a twisted nematic (TN) mode, a super twisted nematic (STN) mode, a bistable twisted nematic (BTN) mode, an electrically controlled birefringence (ECB) mode, an optically compensated bend (OCB) mode, an in-plane switching (IPS) mode, a vertical alignment (VA) mode and a polymer sustained alignment (PSA) mode.In such a liquid crystal display device, a liquid crystal composition having suitable physical properties is used. In order to further improve characteristics of the display device, the liquid crystal compound contained in the composition preferably has physical properties as shown in (1) to (8) below:(1) high stability to heat, light and so forth; (2) high clearing point; (3) low ...

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Номер записи: 8
24-10-2013 дата публикации

COMPOUND HAVING FOUR POLYMERIZABLE GROUPS, LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL DISPLAY DEVICE

Номер: US20130277609A1
Автор: Goto Yasuyuki, MATSUKUMA MAIKO, Yamashita Junichi
Принадлежит:

A compound represented by formula (1), a liquid crystal composition, a liquid crystal display device are described. 4. The compound according to claim 3 , wherein in formulas (1-1) to (1-6) claim 3 , s is 0.5. The compound according to claim 3 , wherein in formulas (1-1) to (1-6) claim 3 , Z claim 3 , Z claim 3 , Zand Zare independently a single bond; s is 0 or 1; Lis a single bond; Lis a single bond claim 3 , —COO— claim 3 , —CH═CH— claim 3 , —CH═CH—COO— claim 3 , —C(CH)—CH—COO— claim 3 , —CH═C(CH)—COO— claim 3 , —C(CH)═C(CH)—COO— claim 3 , —C≡C— claim 3 , —COCH═CH— claim 3 , —C(CH)═C(CH)— claim 3 , —CH═CH—CHO— claim 3 , —CH═CH—OCH— or —CO—; and P is CH═CH—COO— or CH═C(CH)—COO—.6. The compound according to claim 3 , wherein in formulas (1-1) to (1-6) claim 3 , Z claim 3 , Z claim 3 , Zand Zare independently —COO— claim 3 , —CHO— claim 3 , —CHCHO— or —CH═CHO—; s is 0 or 1; Lis a single bond; Lis a single bond claim 3 , —COO— claim 3 , —CH═CH— claim 3 , —CH═CH—COO— claim 3 , —C(CH)═CH—COO— claim 3 , —CH═C(CH)—COO— claim 3 , —C(CH)═C(CH)—COO— claim 3 , —C≡C— claim 3 , —COCH═CH— claim 3 , —C(CH)═C(CH)— claim 3 , —CH═CH—CHO— claim 3 , —CH═CH—OCH— or —CO—; and P is CH—CH—COO— or CH═C(CH)—COO—.7. The compound according to claim 3 , wherein in formulas (1-1) to (1-3) claim 3 , Z claim 3 , Z claim 3 , Zand Zare independently a single bond; s is 0 or 1; Lis a single bond; Lis a single bond claim 3 , —COO— claim 3 , —CH═CH— or —CH═CHCOO—; and P is CH—CH—COO— or CH═C(CH)—COO—.8. The compound according to claim 3 , wherein in formulas (1-1) to (1-3) claim 3 , Z claim 3 , Z claim 3 , Zand Zare independently —CHCHO— or —CH═CHO—; s is 0 or 1; Lis a single bond; Lis a single bond claim 3 , —COO— claim 3 , —CH═CH— or —CH═CHCOO—; and P is CH═CH—COO— or CH═C(CH)—COO—.9. A polymer obtained from the compound according to .10. A liquid crystal composition including the compound according to .18. A liquid crystal display device containing the liquid crystal composition according to . This ...

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Номер записи: 9
31-10-2013 дата публикации

OPTICALLY ISOTROPIC LIQUID CRYSTAL MEDIUM AND OPTICAL DEVICE

Номер: US20130289316A1
Автор: HASEBA YASUHIRO, Kuninobu Takafumi
Принадлежит:

A liquid crystal medium, which has a liquid crystal phase over a wide temperature range, a large refractive index anisotropy, and a large dielectric anisotropy, and exhibits an optically isotropic liquid crystal phase, is provided. The liquid crystal medium is characterized by containing a liquid crystal compound having four benzene rings and a difluoromethyleneoxy group, and a chiral reagent, and exhibiting an optically isotropic liquid crystal phase. 1. A compound, represented by the following Formula (1-2H) or Formula (1-3H),{'sup': H', 'H, 'sub': 1-20', '3, 'wherein in Formula (1-2H) and Formula (1-3H), Ris a Calkyl, and Xis fluorine or —CF.'} This is a continuation application of and claims the priority benefit of U.S. patent application Ser. No. 13/129,578, filed on May 17, 2011, now allowed, which is a 371 of international application of PCT application serial no. PCT/JP2009/068393, filed on Oct. 27, 2009, which claims the priority benefit of Japan application no. 2008-295842, filed on Nov. 19, 2008. 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 generally relates to a liquid crystal medium useful as a material for an optical device, and in particular, to a liquid crystal medium having a liquid crystal phase over a wide temperature range, and having a large dielectric anisotropy and a large refractive index anisotropy. The present invention further relates to an optical device using the liquid crystal medium, and in particular, to an optical device that can be used in a wide temperature range and driven at a low voltage, and is capable of achieving a high-speed electro-optical response. The so-called optical device refers to various devices using electro-optic effect to achieve the function of optical modulation or optical switching, for example, display devices (LCD devices) and optical modulation devices used in ...

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Номер записи: 10
21-11-2013 дата публикации

Phenolic compound having carbonyl as neighboring group and application thereof

Номер: US20130306909A1
Автор: Mayumi Goto, YASUYUKI Sasada
Принадлежит: JNC Corp, JNC Petrochemical Corp

To provide a liquid crystal compound having a large negative value of dielectric anisotropy (Δ∈). A compound is represented by formula (1): wherein, in formula (1), R 1 and R 2 are hydrogen, halogen or alkyl having 1 to 10 carbons, and in the alkyl, at least one of —CH 2 — may be replaced by —O—, at least one of —(CH 2 ) 2 — may be replaced by —CH═CH—, and at least one of hydrogen may be replaced by halogen; ring A 1 and ring A 2 are 1,4-cyclohexylene or 1,4-phenylene; Z 1 is a single bond, —(CH 2 ) 2 —, —CH 2 O—, —OCH 2 —, —CF 2 O—, —OCF 2 —, —COO—, or —OCO—; Y is halogen, —CF 3 , —CF 2 H or —CH 2 F; and m, n and p are 0, 1 or 2, and a sum (m+n) of m and n is 0, 1 or 2.

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Номер записи: 11
05-12-2013 дата публикации

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

Номер: US20130321745A1
Автор: Daisuke Kubota
Принадлежит: Semiconductor Energy Laboratory Co Ltd

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.

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Номер записи: 12
26-12-2013 дата публикации

Polymer-stabilized optical isotropic liquid crystal formulation and optical isotropic liquid crystal device

Номер: US20130341566A1
Автор: Pao-Ju Hsieh
Принадлежит: Industrial Technology Research Institute ITRI

An embodiment provides a polymer-stabilized optical isotropic liquid crystal formulation, including 50 to 99.5 parts by weight of an optical isotropic liquid crystal material; and 0.5 to 50 parts by weight of polymer, wherein the polymer is polymerized by an acrylic monomer containing fluorine groups and an acrylic monomer with a liquid crystal phase and/or an acrylic monomer without a liquid crystal phase.

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Номер записи: 13
06-02-2014 дата публикации

COMPOUND HAVING 2,2-DIFLUOROVINYLOXY GROUP OR 1,2,2-TRIFLUOROVINYLOXY GROUP, LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL DISPLAY DEVICE

Номер: US20140034876A1
Автор: GOTOH YASUYUKI, Ookawa Hiroki
Принадлежит:

To provide a liquid crystal compound having a high stability to light, a high clearing point, a low minimum temperature of a liquid crystal phase, a small viscosity, a suitable optical anisotropy, a large dielectric anisotropy, a suitable elastic constant and an excellent solubility in other liquid crystal compounds. The invention concerns a compound represented by formula (1), a liquid crystal composition containing the compound and a liquid crystal display device including the composition: 2. The compound according to claim 1 , wherein Ris alkyl having 1 to 20 carbons or alkenyl having 2 to 20 carbons; ring A claim 1 , ring Aand ring Aare independently 1 claim 1 ,4-cyclohexylene claim 1 , 1 claim 1 ,4-phenylene claim 1 , 2-fluoro-1 claim 1 ,4-phenylene claim 1 , 2 claim 1 ,6-difluoro-1 claim 1 ,4-phenylene claim 1 , tetrahydropyran-2 claim 1 ,5-diyl or 1 claim 1 ,3-dioxane-2 claim 1 ,5-diyl;{'sup': 1', '3, 'sub': '2', 'Zand Zare independently a single bond, —CH═CH— or —CFO—; and'}{'sup': 1', '2', '3, 'L, Land Lare independently hydrogen or fluorine.'}3. The compound according to claim 1 , wherein m is 1 or 2.4. The compound according to claim 1 , wherein ring Ais 1 claim 1 ,4-cyclohexylene claim 1 , 1 claim 1 ,4-phenylene claim 1 , 2-fluoro-1 claim 1 ,4-phenylene or 2 claim 1 ,6-difluoro-1 claim 1 ,4-phenylene.5. The compound according to claim 1 , wherein Zis a single bond.6. The compound according to claim 1 , wherein n is 0.9. A liquid crystal composition containing at least one of the compound according to .15. The liquid crystal composition according to claim 9 , further containing at least one of optically active compound.16. The liquid crystal composition according to claim 9 , further containing at least one of antioxidant and/or ultraviolet light absorber.17. A liquid crystal display device including the liquid crystal composition according to . The invention relates to a liquid crystal compound and a liquid crystal composition. More specifically, the ...

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Номер записи: 14
06-03-2014 дата публикации

Polymerizable monomer and liquid crystal material applied to display panel

Номер: US20140065323A1
Автор: Chung-Ching Hsieh, Hsi-Chien Lin, Te-Sheng Chen, Yang-Chu Lin
Принадлежит: AU OPTRONICS CORP

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.

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Номер записи: 15
13-03-2014 дата публикации

NEMATIC LIQUID CRYSTAL COMPOSITION, LIQUID CRYSTAL DISPLAY ELEMENT USING SAME

Номер: US20140070142A1
Автор: Kawakami Shotaro, Sudo Gou
Принадлежит: DIC CORPORATION

A nematic liquid crystal composition according to the invention is used for a liquid crystal display element for an active matrix drive for TV applications or the like for which a quick switching and a wide viewing angle are required. The liquid crystal composition has a negative dielectric anisotropy having a large absolute value and also has a sufficiently low viscosity. Therefore, the liquid crystal composition has excellent characteristic properties, that is, a quick switching, good display quality and a suppressed display defect, and is therefore suitable as a practical liquid crystal composition. Further, a liquid crystal display element produced using the liquid crystal composition can be used favorably as a liquid crystal display element of a VA type or the like. 115-. (canceled)18. The liquid crystal composition according to claim 16 , wherein the liquid crystal composition comprises formula (I) claim 16 , formulas (II-1A) claim 16 , (II-2A) claim 16 , and formula (III-A).19. The liquid crystal composition according to claim 16 , wherein the liquid crystal composition comprises formula (I) claim 16 , formulas (II-1B) claim 16 , (II-2A) claim 16 , and formula (III-A).20. The liquid crystal composition according to claim 16 , wherein the liquid crystal composition comprises formula (I) claim 16 , formulas (II-1A) claim 16 , (II-1B) claim 16 , (II-2A) claim 16 , and formula (III-A).21. The liquid crystal composition according to claim 16 , wherein a content of the liquid crystal compound having a chlorine atom is less than 10%.22. The liquid crystal composition according to claim 16 , wherein a content of the liquid crystal compound having an alkenyl group is less than 10%.23. The liquid crystal composition according to comprising a polymerizable compound.24. A liquid crystal display element using the liquid crystal composition described in .25. A liquid crystal display element for an active matrix drive using the liquid crystal composition described in .26. A ...

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Номер записи: 16
20-03-2014 дата публикации

LIQUID CRYSTAL COMPOUND, LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL DISPLAY DEVICE

Номер: US20140077131A1
Автор: SASADA Yasuyuki
Принадлежит:

The invention provides a liquid crystal compound represented by formula (1): 2. The compound according to claim 1 , wherein claim 1 , in formula (I) claim 1 ,{'sup': '1', 'Ris fluorine, alkyl having 1 to 10 carbons, alkenyl having 2 to 10 carbons, alkoxy having 1 to 9 carbons, alkoxyalkyl having 2 to 9 carbons, alkenyloxy having 3 to 9 carbons, polyfluoroalkyl having 1 to 10 carbons, polyfluoroalkoxy having 1 to 9 carbons, polyfluoroalkenyl having 2 to 10 carbons, or hydroxy-terminated alkyl having 1 to 10 carbons;'}{'sub': 2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '3', '2', '3', '2', '4, 'α and β are independently cyclohexane-1,3,5-triyl, 1,3,5-trioxane-2,4,6-triyl, benzene-1,3,5-triyl or 1,3,5-triazine-2,4,6-triyl; Z is a single bond, —(CH)—, —CHO—, —OCH—, —CFO—, —OCF—, —CH═CH—, —CF═CF—, —C≡C—, —COO—, —OCO—, —CHSiH—, —SiHCH—, —(CH)COO—, —OCO(CH)—, —(CH)CFO—, —OCF(CH)—, —(CH)O—, —O(CH)— or —(CH)—;'}and in formula (II),Sp is a single bond, unbranched alkylene having 1 to 10 carbons, alkenylene having 1 to 10 carbons, alkynylene having 1 to 10 carbons, oxyalkylene having 2 to 10 carbons, alkyleneoxy having 2 to 10 carbons or oxyalkyleneoxy having 3 to 10 carbons;Ra is independently fluorine, alkyl having 1 to 10 carbons, alkenyl having 2 to 10 carbons, alkoxy having 1 to 9 carbons, alkoxyalkyl having 2 to 9 carbons, alkenyloxy having 3 to 9 carbons, polyfluoroalkyl having 1 to 10 carbons, polyfluoroalkoxy having 1 to 9 carbons or polyfluoroalkenyl having 2 to 10 carbons;{'sup': 1', '2', '3', '4, 'sub': 3', '2, 'A, A, Aand Aare independently 1,4-cyclohexylene, 1,4-phenylene, cyclohexene-1,4-diyl, decahydronaphthalene-2,6-diyl, 1,2,3,4-tetrahydronaphthalene-2,6-diyl or naphthalene-2,6-diyl, and at least one of hydrogen may be replaced by fluorine, chlorine, —CFor —CHF;'}{'sup': 1', '2', '4, 'sub': 2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2 ...

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Номер записи: 17
07-01-2016 дата публикации

Liquid crystal composition and liquid crystal display device using the same

Номер: US20160002534A1
Автор: Jouji KAWAMURA, Makoto Negishi, Yoshinori Iwashita
Принадлежит: DIC Corp

There is provided a liquid crystal composition containing a compound represented by General Formula (i) (where R i represents an alkyl group having 1 to 5 carbon atoms) and a compound represented by Formula (ii), and there is also provided a liquid crystal display device using such a liquid crystal composition.

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Номер записи: 18
05-01-2017 дата публикации

BIMESOGENIC COMPOUNDS AND MESOGENIC MEDIA

Номер: US20170002268A1
Автор: ADLEM Kevin, Parri Owain Llyr, Saxton Patricia Eileen, TUFFIN Rachel
Принадлежит: Merck Patent GmBH

The invention relates to bimesogenic compounds of formula I 3. Bimesogenic compounds according to claim 1 , characterized in that both MGand MGcomprise one claim 1 , two or more 5-atomic rings.4. Bimesogenic compounds according to claim 1 , characterized in that Ris selected from OCF claim 1 , CF claim 1 , F claim 1 , Cl and CN.5. Bimesogenic compounds according to claim 1 , characterized in that Spis —(CH)— and o is 1 claim 1 , 3 or an integer from 5 to 15.6. (canceled)7. Liquid-crystalline medium claim 1 , characterised in that it comprises one or more bimesogenic compounds according to .9. (canceled)10. Liquid crystal device comprising a liquid crystalline medium comprising two or more components claim 1 , one or more of which is a bimesogenic compound of formula I according to .11. Liquid crystal device according to claim 10 , characterized in that it is a flexoelectric device. The invention relates to bimesogenic compounds of formula Iwherein R, R, MG, MGand Sphave the meaning given herein below, to the use of bimesogenic compounds of formula I in liquid crystal media and particular to flexoelectric liquid crystal devices comprising a liquid crystal medium according to the present invention.Liquid Crystal Displays (LCDs) are widely used to display information. LCDs are used for direct view displays, as well as for projection type displays. The electro-optical mode which is employed for most displays still is the twisted nematic (TN)-mode with its various modifications. Besides this mode, the super twisted nematic (STN)-mode and more recently the optically compensated bend (OCB)-mode and the electrically controlled birefringence (ECB)-mode with their various modifications, as e.g. the vertically aligned nematic (VAN), the patterned ITO vertically aligned nematic (PVA)-, the polymer stabilized vertically aligned nematic (PSVA)-mode and the multi domain vertically aligned nematic (MVA)-mode, as well as others, have been increasingly used. All these modes use an ...

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Номер записи: 19
04-01-2018 дата публикации

LIQUID-CRYSTALLINE MEDIUM

Номер: US20180002604A1
Автор: JEONG Ji-Won, JIN Min-Ok, LEE Eun-Kyu, PARK Mi-Na, YOON Hyun-Jin, YUN Yong-Kuk
Принадлежит: Merck Patent GmBH

The invention relates to a liquid-crystalline medium based on a mixture of polar compounds comprising a self-alignment additive for vertical alignment and additionally at least one compound of formula I as described more closely within this disclosure (polymerizable HALS), especially for vertically aligned display applications. 2. The liquid-crystalline medium according to claim 1 , wherein said medium comprises one or more additional polymerizable compounds or a polymer comprising their polymerized form.3. The liquid-crystalline medium according to claim 1 , wherein said self-alignment additive for vertical alignment is of formula II{'br': None, 'sup': '2', 'MES-R\u2003\u2003II'}in whichMES is a mesogenic group comprising one or more rings and optionally one or more polymerizable groups, and{'sup': '2', 'Ris a polar anchor group.'}4. The liquid-crystalline medium according to claim 1 , wherein said self-alignment additive for vertical alignment is of formula IIa{'br': None, 'sup': 1', '2', '2', '1', 'a, 'sub': 'm', 'R-[A-Z]-A-R\u2003\u2003(IIa)'}in which{'sup': 1', '2, 'A, Aeach, independently of one another, denote an aromatic, heteroaromatic, alicyclic or heterocyclic group, which may also contain fused rings, and which may also be mono- or polysubstituted by a group L or -Sp-P,'}{'sub': 2', '2, 'sup': 0', '0, 'L in each case, independently of one another, denotes H, F, Cl, Br, I, —CN, —NO, —NCO, —NCS, —OCN, —SCN, —C(═O)N(R), —C(═O)R, optionally substituted silyl, optionally substituted aryl or cycloalkyl having 3 to 20 C atoms, or straight-chain or branched alkyl, alkoxy, alkylcarbonyl, alkoxycarbonyl, alkylcarbonyloxy or alkoxycarbonyloxy having up to 25 C atoms, in which, in addition, one or more H atoms may each be replaced by F or Cl,'}P denotes a polymerizable group,Sp denotes a spacer group or a single bond,{'sup': 2', '0', '00, 'sub': 2', '2', '2', '2', '2', '2', '2', '2', '2', 'n1', '2', '2', '2', '2', '2', 'n1', 'n1', '2, 'Zin each case, independently ...

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Номер записи: 20
05-01-2017 дата публикации

Light modulation element

Номер: US20170003531A1
Автор: Geoffrey LUCKHURST, Karl Skjonnemand, Owain Llyr Parri, Rachel TUFFIN, Rebecca PROCTOR, Simon SIEMIANOWSKI
Принадлежит: Merck Patent GmBH

The invention provides a light modulation element comprising a flexoelectric polarisable liquid-crystalline medium, characterized in that the switching from a boundary state A to a boundary state B comprises a combination of a distinct flexoelectric switching regime and a distinct dielectric switching regime upon application of an electric field. Furthermore, the present invention relates to the use of such a light modulation element in an electro-optical device, i.e. an LCD display device, and electrooptical devices comprising the light modulation element according to the present invention. Moreover, the invention relates to a method of production of the light modulation element according to the present invention.

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Номер записи: 21
19-01-2017 дата публикации

LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL DISPLAY INCLUDING THE SAME

Номер: US20170015904A1
Автор: Jang Hye Kim, KIM Hoi-Lim, KIM Kyung Min, KIM Se Ran, KIM Si Heun, KWON SUN YOUNG, OH Keun Chan, RHO Soon Joon, SHIN Beom-Soo
Принадлежит:

A liquid crystal composition includes a first compound represented by Chemical Formula 1. 3. The liquid crystal composition of claim 2 , whereinthe first compound is present in an amount of about 20 wt % to about 40 wt % with respect to a total weight of the liquid crystal composition.9. The liquid crystal display of claim 8 , whereinthe first compound is present in an amount of about 20 wt % to about 40 wt % of a total weight of the liquid crystal composition.12. The liquid crystal display of claim 7 , whereinthe liquid crystal composition includes a plurality of liquid crystal molecules, andthe liquid crystal molecules are pretilted with respect to the first substrate or the second substrate.13. The liquid crystal display of claim 12 , whereinthe pretilt of the liquid crystal molecules is about 86 degrees to about 87.5 degrees. This application claims priority to and the benefit of Korean Patent Application No. 10-2015-0098957, filed on Jul. 13, 2015, and all the benefits accruing therefrom under 35 U.S.C. §119, the contents of which in their entirety are herein incorporated by reference.(a) FieldThe present invention relates to a liquid crystal composition and a liquid crystal display including the same.(b) Description of the Related ArtLiquid crystal displays are widely used as one type of flat panel display. The liquid crystal display includes two display panels on which field generating electrodes are formed, and a liquid crystal layer interposed between the display panels. In the liquid crystal display, a voltage is applied to the field generating electrodes to generate an electric field across the liquid crystal layer, and the alignment of liquid crystal molecules in the liquid crystal layer is determined by the electric field. Accordingly, the polarization of incident light can be controlled, thereby performing image display.The liquid crystal display includes a liquid crystal material that is capable of controlling the transmittance of light and obtaining ...

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Номер записи: 22
25-01-2018 дата публикации

BIMESOGENIC COMPOUNDS AND MESOGENIC MEDIA

Номер: US20180022996A1
Автор: ADLEM Kevin, ARASI Hassan, Parri Owain Llyr, TUFFIN Rachel
Принадлежит: Merck Patent GmBH

The invention relates to bimesogenic compounds of formula I 2. Bimesogenic compounds according to claim 1 , characterized in that{'sup': '1', 'CGis H-J-K, wherein'}{'sub': 2', '2', '2', '2', '3', '2, 'claim-text': alternatively, either —H-J- or -J-K— together may be —CH═CH— or —C≡C— and,', 'again alternatively, —H-J-K— together may be —CH═C═CH—, and, 'H, J and K are independently of each other selected from —CH—, —CHF—, —CF—, —O—, —S—, —(C═O)—, —CH(OR)—, —CH(R)—, —C(R)(R′)—, —SO—, —CF—, —CH(CF)—, —C(═CH)—, —NH—, —N(R)— and, —S(R)(R′)—,'}{'sub': '2', 'R and R′ are independently of each other an alkyl group having 1 to 5 carbon atoms, wherein one or two non-terminal and non-adjacent —CH— groups may be replaced by O.'}3. Bimesogenic compounds according to claim 1 , characterized in that at least one of Rand Ris selected from OCF claim 1 , CF claim 1 , F claim 1 , Cl and CN.4. Bimesogenic compounds according to claim 1 , characterized in that CGis (—CH) claim 1 , —CH—CF—O— claim 1 , —O—CF—CH— claim 1 , —CH—C(O)—O— or —O—C(O)—CH—.5. A method which comprises including one or more bimesogenic compounds according to in a liquid crystalline medium.6. Liquid-crystalline medium claim 1 , characterised in that it comprises one or more bimesogenic compounds according to .7. Liquid-crystalline medium according to claim 6 , characterised in that it additionally comprises one or more compounds selected from the group of the compounds of the formulae III{'br': None, 'sup': 31', '31', '31', '3', '32', '32', '32, 'R-MG-X-Sp-X-MG-R\u2003\u2003III'}wherein{'sup': 31', '32, 'sub': '2', 'claim-text': {'sub': '3', '—N(CH)—, —CO—, —COO—, —OCO—, —O—CO—O—, —S—CO—, —CO—S—, —CH═CH—, —CH═CF—, —CF═CF— or —C≡C— in such a manner that oxygen atoms are not linked directly to one another,'}, 'Rand Rare each independently H, F, Cl, CN, NCS or a straight-chain or branched alkyl group with 1 to 25 C atoms which may be unsubstituted, mono- or polysubstituted by halogen or CN, it being also possible for ...

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Номер записи: 23
29-01-2015 дата публикации

LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL DISPLAY ELEMENT USING THE SAME

Номер: US20150028257A1
Автор: Kawamura Joji
Принадлежит: DIC CORPORATION

The liquid crystal composition of the present invention can be used in a liquid crystal display element of an IPS type or a TN type in which display defects such as burn-in and dropping marks in high speed response are unlikely to be generated. Since the liquid crystal composition contains a component which is a dielectrically positive component including a dielectrically positive compound and a dielectrically neutral component of which dielectric anisotropy is greater than −2 and less than +2, the liquid crystal composition has excellent characteristics that the liquid crystal composition has a liquid crystal phase in a wide temperature range, low viscosity, excellent solubility at a low temperature, high specific resistance and a high voltage holding ratio, and is stable with respect to heat and light. 18-. (canceled)15. A liquid crystal display element for active matrix driving using the liquid crystal composition according to . The present invention relates to a nematic liquid crystal composition of which dielectric anisotropy (Δ∈) is a positive value useful as a liquid crystal display material and a liquid crystal display element using the same.The liquid crystal display element is used in various kinds of measuring apparatus, a panel for an automobile, a word processor, an electronic organizer, a printer, a computer, a TV, a clock, an advertising display board and the like including a watch and a calculator. The representative examples of the liquid crystal display method include a TN (twisted nematic) type, an STN (super twisted nematic) type, and a vertical alignment type and an IPS (in-plane switching) type using a TFT (thin film transistor). The liquid crystal composition used in these liquid crystal display elements is required to be stable with respect to external impetuses such as water, air, heat, and light, and to exhibit a liquid crystal phase in as wide temperature range around room temperature as possible, and to have a low viscosity and a low ...

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Номер записи: 24
17-02-2022 дата публикации

Mesogen Compounds

Номер: US20220049161A1
Автор: Grubb Alan M., Kumar Anil, Li Yannian, Reddy Ramaiahgari, Tripathi Suvagata
Принадлежит:

The present invention relates to mesogen compounds that include a first mesogen (Mesogen-1) and a second mesogen (Mesogen-2) that are connected by a linking group (-L-), as represented by the following Formula (I): 2. The mesogen-containing compound of claim 1 , wherein:{'claim-text': {'sub': '1', '#text': 'Qis a divalent group selected from the group consisting of unsubstituted or substituted cycloalkyl; unsubstituted or substituted phenyl; unsubstituted or substituted naphthyl; and unsubstituted or substituted triptycenyl; wherein the cycloalkyl substituents, phenyl substituents, naphthyl substituents, and triptycenyl substituents are each independently selected from alkyl and halogen; and'}, '#text': '(B) for Formula (III),'}{'claim-text': {'sub': ['2', '3'], '#text': 'Qand Qfor each occurrence are independently a divalent group selected from the group consisting of unsubstituted or substituted cycloalkyl; unsubstituted or substituted phenyl; unsubstituted or substituted naphthyl; and unsubstituted or substituted triptycenyl; wherein the cycloalkyl substituents, phenyl substituents, naphthyl substituents, and triptycenyl substituents are each independently selected from alkyl and halogen.'}, '#text': 'wherein independently for each of Formula (II) and Formula (III),'}3. The mesogen-containing compound of claim 2 , wherein:{'sub': '1', '#text': 'for Formula (III), Qis a divalent group selected from the group consisting of unsubstituted or substituted 1,4-cyclohexyl; unsubstituted or substituted 1,4-phenyl; unsubstituted or substituted 1,5-naphthyl; unsubstituted or substituted 2,6-naphthyl; unsubstituted or substituted 1,8-naphthyl; and unsubstituted or substituted 1,4-triptycenyl; wherein the 1,4-cyclohexyl substituents, 1,4-phenyl substituents, 1,5-naphthyl substituents, 2,6-naphthyl substituents, 1,8-naphthyl substituents, and 1,4-triptycenyl substituents are each independently selected from alkyl and halogen; and'}{'claim-text': {'sub': ['2', '3'], '#text': ' ...

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Номер записи: 25
05-02-2015 дата публикации

NEMATIC LIQUID CRYSTAL COMPOSITION, LIQUID CRYSTAL DISPLAY ELEMENT USING SAME

Номер: US20150034873A1
Автор: Kawakami Shotaro, SUDO Go
Принадлежит: DIC CORPORATION

A nematic liquid crystal composition according to the invention is used for a liquid crystal display element for an active matrix drive for TV applications or the like for which a high speed and a wide viewing angle are required. The liquid crystal composition has a negative dielectric anisotropy having a large absolute value and also has a sufficiently low viscosity. Therefore, the liquid crystal composition has excellent characteristic properties, that is, a high speed response, good display quality and a suppressed display defect, and is therefore suitable as a practical liquid crystal composition. Further, a liquid crystal display element produced using the liquid crystal composition can be used favorably as a liquid crystal display element of a VA type or the like. 2. The liquid crystal composition according to claim 1 , wherein Δ∈ at 25° C. is in a range of −2.0 to −6.0 claim 1 , a refractive index anisotropy (Δn) at 25° C. is in a range of 0.08 to 0.13 claim 1 , viscosity (η) at 20° C. is in a range of 10 to 30 mPa·s claim 1 , and a nematic phase-isotropic liquid phase transition temperature (T) is in a range of 60° C. to 120° C.4. The liquid crystal composition according to claim 1 , wherein a content of the second component is 10% to 90% by mass.7. The liquid crystal composition according to claim 1 , simultaneously comprising: formula (I) claim 1 , formulas (II-1A) claim 1 , (II-2A) claim 1 , and formula (III-A).8. The liquid crystal composition according to claim 1 , simultaneously comprising: formula (I) claim 1 , formulas (II-1B) claim 1 , (II-2A) claim 1 , and formula (III-A).9. The liquid crystal composition according to claim 1 , simultaneously comprising formula (I) claim 1 , formulas (II-1A) claim 1 , (II-1B) claim 1 , (II-2A) claim 1 , and formula (III-A).10. The liquid crystal composition according to claim 1 , wherein a content of the liquid crystal compound having a chlorine atom is less than 10%.11. The liquid crystal composition according to ...

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Номер записи: 26
25-02-2016 дата публикации

LIQUID CRYSTAL DISPLAY DEVICE

Номер: US20160054619A1
Автор: Asami Ryosuke, Kawamura Jouji, Koike Junichiro, Kuriyama Takeshi, MAKI Hiroshi, Shishikura Masami
Принадлежит: DIC CORPORATION

There is provided a liquid crystal display device that includes a liquid crystal composition and a color filter having a particular slope parameter that indicates the degree of aggregation of an organic pigment. The liquid crystal display device prevents a decrease in the voltage holding ratio (VHR) and an increase in the ion density (ID) in a liquid crystal layer and resolves the problems of display defects, such as white streaks, variations in alignment, and image sticking. The liquid crystal display device prevents a decrease in the voltage holding ratio (VHR) and an increase in the ion density (ID) in a liquid crystal layer and suppressing display defects such as image sticking. Therefore, the liquid crystal display device is useful for active matrix driving liquid crystal display devices with an IPS mode or an FFS mode and can be applied to liquid crystal display devices. 111.-. (canceled)13. The liquid crystal display device according to claim 12 , wherein in the scattering profile analysis of the organic pigment in the color filter claim 12 , the slope parameter in the analysis region (c1) is 1.5 or less.14. The liquid crystal display device according to claim 12 , wherein in the color filter claim 12 , a volume fraction of particles having a particle size of 100 nm or more and 1000 nm or less relative to all particles of the organic pigment is 7% or less.15. The liquid crystal display device according to claim 12 , wherein the organic pigment has a maximum transmission wavelength of 600 nm or more and 700 nm or less.16. The liquid crystal display device according to claim 12 , wherein the organic pigment has a maximum transmission wavelength of 500 nm or more and 600 nm or less.17. The liquid crystal display device according to claim 12 , wherein the organic pigment has a maximum transmission wavelength of 400 nm or more and 500 nm or less.18. The liquid crystal display device according to claim 12 , wherein the organic pigment is dispersed in a coating film ...

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Номер записи: 27
05-03-2015 дата публикации

LIQUID CRYSTAL COMPOSITION

Номер: US20150060734A1
Автор: Chen Jian-Hua, Su Chun-Wei
Принадлежит: Chunghwa Picture Tubes, LTD.

A liquid crystal composition including a first liquid crystal monomer, and a second liquid crystal monomer, wherein the ratio of the first liquid crystal monomer is 5 wt % to 10 wt % and the ratio of the second liquid crystal monomer is 90 wt % to 95 wt %, based on the total weight of the first liquid crystal monomer and the second liquid crystal monomer. The first liquid crystal monomer is selected from the group consisting of tetra-cyclic compounds represented by formula 1 to formula 6: 5. The liquid crystal composition of claim 1 , further comprising a polymerizable material comprising a polyol acrylate oligomer claim 1 , a liquid crystal polymerization initiator claim 1 , a difunctional acrylate monomer claim 1 , a polythiol monomer claim 1 , and a combination thereof claim 1 , wherein based on a total weight of the liquid crystal composition claim 1 , a ratio of the polymerizable material is 20 wt % to 50wt %. This application claims the priority benefit of Taiwan application serial no. 102131267, filed on Aug. 30, 2013. The entirety of the above-mentioned patent application is hereby incorporated by reference herein and made a part of this specification.1. Field of the InventionThe invention is related to a liquid crystal composition, and more particularly, to a liquid crystal composition including a liquid crystal monomer having a tetra-cyclic structure.2. Description of Related ArtIn recent years, with the development of technology, the transparent liquid crystal display (LCD) has become one of the directions the optoelectronics industry strives toward. In terms of the current transparent LCD, scattering and transmissive display modes are formed based on whether or not a voltage is driven such that display effects can be achieved without attaching a polarizer. Therefore, the current transparent LCD has the advantages of a simple process and low manufacturing costs.However, since the liquid crystal used by the current transparent LCD usually has the ...

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Номер записи: 28
03-03-2016 дата публикации

Nematic liquid crystal composition and liquid crystal display element using same

Номер: US20160060526A1
Автор: Go Sudo, Shotaro Kawakami
Принадлежит: DIC Corp

There is provided a positive liquid crystal composition that has a dielectric anisotropy useful as a liquid crystal display material. The liquid crystal composition has a liquid crystal phase in a wide temperature range, a low viscosity, a good solubility at low temperatures, a high resistivity, and a high voltage holding ratio, and is stable to heat and light. Use of this liquid crystal composition can provide a liquid crystal display element that has high displaying quality and is less likely to undergo displaying failures such as burn-in and dropping marks. A liquid crystal display element that employs the liquid crystal composition is useful for an active-matrix-driving liquid crystal display element and can be used for a liquid crystal display element that employs the TN mode, the IPS mode, the FFS mode, or the like.

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Номер записи: 29
04-03-2021 дата публикации

DIELECTRIC MATERIALS

Номер: US20210062091A1
Автор: Koppe Karsten, Larbig Gregor, Meyer Frank
Принадлежит: Merck Patent GmBH

The present invention relates to a novel class of polymers which can be used as dielectric material for the preparation of passivation layers in electronic devices. The polymers are prepared from polymerizable compounds having mesogenic groups and they provide excellent film forming capability and excellent mechanical properties and have a low dielectric constant and a low coefficient of thermal expansion (CTE). There is further provided a method for forming said polymers and an electronic device containing said polymers as dielectric material. Beyond that, the present invention relates to a manufacturing method for preparing a packaged microelectronic structure and to a microelectronic device comprising said packaged microelectronic structure formed by said manufacturing method. 1. Polymerizable compound , represented by Formula (1):{'br': None, 'sup': 1', '1', '1', '1, 'sub': 'm', 'P-Sp-(MG-Sp)-P\u2003\u2003Formula (1)'}wherein:m is an integer from 1 to 60;{'sup': '1', 'Pdenotes a polymerizable group (P);'}{'sup': '1', 'Spdenotes at each occurrence a spacer group (Sp) or a single bond;'} {'br': None, 'sup': 21', '21', '22', '22', '23, 'sub': k', 'l, '-(A-Z)-A-(Z-A)- \u2003\u2003Formula (2)'}, 'MG is a rod-shaped mesogenic group, which is preferably selected from Formula (2)wherein:{'sup': 21', '23, 'Ato Aare independently and at each occurrence independently of one another an aryl group, heteroaryl group, heterocyclic group, alicyclic group or cyclic imide group optionally being substituted by one or more identical or different groups L;'}{'sup': 21', '22', '01', '01', '01', '02', '01', '01', '01', '01', '02, 'sub': 2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '4', '2', '2', '2', '2', '2', '2, 'Zand Zare independently and at each occurrence independently from each other, —O—, —S—, —CO—, —COO—, —OCO—, —S—CO—, —CO—S—, —O—COO—, —CO—NR—, —NR—CO—, —NR—CO—NR, —NR—CO—O—, —O—CO—NR—, —OCH—, —CHO—, —SCH—, —CHS—, —CFO—, —OCF—, —CFS—, —SCF—, —CHCH—, —(CH)—, —CFCH—, — ...

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Номер записи: 30
22-05-2014 дата публикации

LIQUID CRYSTAL COMPOUND HAVING VINYLOXY, LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL DISPLAY DEVICE

Номер: US20140138582A1
Автор: GOTOH YASUYUKI, KOBAYASHI Masahide
Принадлежит:

A liquid crystal compound having high stability to heat, light and so forth, a high clearing point, a low minimum temperature of a liquid crystal phase, small viscosity, suitable optical anisotropy, large negative dielectric anisotropy, a suitable elastic constant and excellent compatibility with other liquid crystal compounds, a liquid crystal composition containing the compound, and a liquid crystal display device including the composition. The compound is represented by formula (1-1): 6. The compound according to , wherein , in formulas (1-5-1) to (1-5-12) according to , Ris alkyl having 1 to 10 carbons or alkenyl having 2 to 10 carbons , and Ris alkyl having 1 to 10 carbons or alkenyl having 3 to 10 carbons.7. Use of at least one of the compounds according to as a component of a liquid crystal composition.8. A liquid crystal composition claim 1 , containing at least one of the compounds according to .13. The liquid crystal composition according to claim 8 , further containing at least one optically active compound and/or at least one polymerizable compound.14. The liquid crystal composition according to claim 8 , further containing at least one antioxidant and/or at least one ultraviolet light absorber.15. A liquid crystal display device claim 8 , including the liquid crystal composition according to . The invention relates to a liquid crystal compound, a liquid crystal composition and a liquid crystal display device. More specifically, the invention relates to a compound that has vinyloxy and 2,3-difluoro-1,4-phenylene, and has a negative dielectric anisotropy, a liquid crystal composition containing the compound, and a liquid crystal display device including the composition.A liquid crystal display device is widely used for a display of a personal computer, a television and so forth. The device utilizes optical anisotropy, dielectric anisotropy and so forth of a liquid crystal compound. As an operating mode of the liquid crystal display device, a variety of ...

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Номер записи: 31
29-05-2014 дата публикации

LIQUID CRYSTAL COMPOUND HAVING CF2OCF3 AT TERMINAL, LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL DISPLAY DEVICE

Номер: US20140145113A1
Автор: Yamashita Junichi, YANO Tomohiro
Принадлежит:

A liquid crystal compound having high stability to heat, light and so forth, a high clearing point, a low minimum temperature of a liquid crystal phase, small viscosity, suitable optical anisotropy, large dielectric anisotropy, a suitable elastic constant and excellent compatibility with other liquid crystal compounds, a liquid crystal composition containing the compound, and a liquid crystal display device including the composition. The compound is represented by formula (1-1): 2. The compound according to claim 1 , wherein claim 1 , in formula (1) claim 1 , Z claim 1 , Z claim 1 , Zand Zare independently a single bond claim 1 , —(CH)— claim 1 , —CH═CH— claim 1 , —COO— claim 1 , —OCO— claim 1 , —CFO— claim 1 , —OCF— claim 1 , —CHO— or —OCH—.3. The compound according to claim 1 , wherein claim 1 , in formula (1) claim 1 , Ris alkyl having 1 to 10 carbons claim 1 , and in the alkyl claim 1 , at least one of —CH— may be replaced by —O— and at least one of —(CH)— may be replaced by —CH═CH—; and ring A claim 1 , ring A claim 1 , ring A claim 1 , ring Aand ring Aare independently 1 claim 1 ,4-cyclohexylene claim 1 , 1 claim 1 ,4-phenylene claim 1 , 1 claim 1 ,4-phenylene in which at least one of hydrogen is replaced by halogen claim 1 , tetrahydropyran-2 claim 1 ,5-diyl claim 1 , 1 claim 1 ,3-dioxane-2 claim 1 ,5-diyl claim 1 , pyrimidine-2 claim 1 ,5-diyl claim 1 , 2 claim 1 ,6 claim 1 ,7-trioxabicyclo[2.2.2]octane-1 claim 1 ,4-diyl claim 1 , naphthalene-2 claim 1 ,6-diyl claim 1 , or naphthalene-2 claim 1 ,6-diyl in which at least one of hydrogen is replaced by halogen claim 1 , or pyridine-2 claim 1 ,5-diyl.8. A liquid crystal composition claim 1 , containing at least one of the compounds according to .13. The liquid crystal composition according to claim 8 , further containing at least one optically active compound and/or at least one polymerizable compound.14. The liquid crystal composition according to claim 8 , further containing at least one antioxidant and/or at ...

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Номер записи: 32
11-03-2021 дата публикации

Polarizer and image display device

Номер: US20210072443A1
Автор: Wataru HOSHINO, Yuya Hamaguchi
Принадлежит: Fujifilm Corp

An object of the present invention is to provide a polarizer with a high degree of alignment and an image display device including the polarizer. The polarizer of the present invention is a polarizer which is formed of a polarizer-forming composition containing a liquid crystal compound, a first dichroic material, and a second dichroic material, in which the first dichroic material and the second dichroic material are aligned horizontally with respect to a surface of the polarizer, the first dichroic material is a compound compatible with the liquid crystal compound, and the second dichroic material is a compound which is not compatible with the liquid crystal compound.

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Номер записи: 33
24-03-2016 дата публикации

Liquid crystal composition and liquid crystal display comprising the liquid crystal composition

Номер: US20160083654A1
Автор: Fusayuki Takeshita, Jaejin Lyu, SiHeun Kim
Принадлежит: Samsung Display Co Ltd

A liquid crystal composition comprises at least one of first liquid crystal compounds represented by Formula 1, and a liquid crystal display including the liquid crystal composition: Wherein R 11 and R 12 , and n11 and n12 are defined as in the specification.

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Номер записи: 34
26-03-2015 дата публикации

COMPOUND HAVING 2-FLUOROPHENYLOXYMETHANE STRUCTURE

Номер: US20150087847A1
Автор: Kaneoya Masakazu, Kusumoto Tetsuo, Osawa Masashi, Takeuchi Kiyofumi, Tojo Kenta
Принадлежит: DIC CORPORATION

There is provided a compound having a good miscibility with another liquid crystal compound and having a combination of a low viscosity (η), high storage stability, and high Teven after being used to produce a liquid crystal composition. In particular, it is a compound having a 2-fluorophenyloxymethane structure is provided. Since the compound having a 2-fluorophenyloxymethane structure is highly miscible with another liquid crystal compound, using the compound having a 2-fluorophenyloxymethane structure as a component of a liquid crystal composition enables a production of a liquid crystal composition which exhibits a liquid crystal phase at low viscosity and in a wide temperature range and which has a high storage stability and enables production of a liquid crystal display device which responds fast and which has excellent display characteristics. 110-. (canceled)13. The compound according to claim 11 , wherein Yin General Formula (1) represents a fluorine atom.14. The compound according to claim 11 , wherein claim 11 , in General Formula (1) claim 11 , Ais a group represented by General Formula (A-2) claim 11 , and Yrepresents a hydrogen atom.15. The compound according to claim 11 , wherein Zand Zin General Formula (1) each independently represent —CHO— claim 11 , —OCH— claim 11 , —CFO— claim 11 , —OCF— claim 11 , or a single bond.16. The compound according to claim 11 , wherein at least any one of Yand Yin General Formula (1) represents a fluorine atom.17. The compound according to claim 11 , wherein each of Yand Yin General Formula (1) represents a fluorine atom.18. The compound according to claim 11 , wherein W in General Formula (1) represents a fluorine atom claim 11 , a trifluoromethoxy group claim 11 , or a trifluoromethyl group.19. A liquid crystal composition comprising at least one compound according to .20. A liquid crystal display device comprising the liquid crystal composition according to . The present invention relates to a compound having a 2- ...

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Номер записи: 35
01-04-2021 дата публикации

LIQUID CRYSTAL COMPOSITION AND PHOTOELECTRIC DISPLAY DEVICE THEREOF

Номер: US20210095208A1
Автор: Han Wenming, MA Wenyang, Yan Weigang
Принадлежит: Jiangsu Hecheng Display Technology Co., Ltd.

A liquid crystal composition includes one or more compounds of general Formula I in an amount of 1%-30% by weight of the total weight of the liquid crystal composition, one or more compounds of general Formula II in an amount of 5%-35% by weight of the total weight of the liquid crystal composition, and one or more compounds of general Formula III in an amount of 1%-35% by weight of the total weight of the liquid crystal composition. The liquid crystal composition has an appropriate clearing point, an appropriate optical anisotropy, an appropriate dielectric anisotropy, as well as a higher voltage holding ratio, a higher transmittance, a good high-temperature resistant performance and a faster response speed, thus being suitable for display modes, such as VA, IPS and FFS. A photoelectric display device includes the liquid crystal composition. 3. The liquid crystal composition according to claim 1 , wherein the one or more compounds of general Formula I provides 5%-25% by weight of the total weight of the liquid crystal composition claim 1 , the one or more compounds of general Formula II provides 8%-30% by weight of the total weight of the liquid crystal composition claim 1 , and the one or more compounds of general Formula III provides 5%-30% by weight of the total weight of the liquid crystal composition.5. The liquid crystal composition according to claim 4 , wherein the one or more compounds of general Formula IV provides 20%-60% by weight of the total weight of the liquid crystal composition.8. The liquid crystal composition according to claim 7 , wherein at least one of Rand Rrepresents Calkenyl.9. The liquid crystal composition according to claim 8 , wherein the compound of general Formula V provides 0-15% by weight of the total weight of the liquid crystal composition.10. A photoelectric display device comprising the liquid crystal composition according to . This application claims priority to and benefit of Chinese Patent Application No. 201910944321.X ...

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Номер записи: 36
12-05-2022 дата публикации

Polymerisable liquid crystal material and polymerised liquid crystal film

Номер: US20220145180A1
Автор: Bjoern SCHNATWINKEL, Hyun-Jin Yoon, Yong-Hyun Choi
Принадлежит: Merck Patent GmBH

The invention relates to a polymerisable LC material comprising one or more di- or multireactive mesogenic compounds and one or more compounds of formula UVI, wherein the individual radicals have one of the meaning as given in the claims. Furthermore, the present invention relates also to a method for its preparation, a polymer film with improved thermal durability and UV stability obtainable from a corresponding polymerisable LC material, to a method of preparation of such polymer film, and to the use of such polymer film and said polymerisable LC material for optical, electrooptical, decorative or security devices.

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Номер записи: 37
17-07-2014 дата публикации

LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL DISPLAY DEVICE

Номер: US20140198291A1
Автор: Matsumura Yoshinari, Saito Masayuki
Принадлежит:

A liquid crystal composition satisfying at least one of characteristics such as a high maximum temperature of a nematic phase, a low minimum temperature of the nematic phase, a small viscosity, a suitable optical anisotropy, a large dielectric anisotropy, a large specific resistance, a high stability to ultraviolet light and a high stability to heat, or having a suitable balance regarding at least two of the characteristics is provided; and an AM device having a short response time, a suitable pretilt, a large voltage holding ratio, a large contrast ratio, a long service life and so forth is provided. A solution is a liquid crystal composition containing a specific compound having a high maximum temperature and a large dielectric anisotropy as a first component and a polymerizable compound as a second component, and a liquid crystal display device including the composition. 3. (canceled)56-. (canceled)913-. (canceled)14. The liquid crystal composition according to claim 1 , wherein a ratio of the second component is in the range of 0.05 part by weight to 10 parts by weight based on 100 parts by weight of the liquid crystal composition excluding the second component.1720-. (canceled)21. The liquid crystal composition according to claim 15 , wherein a ratio of the third component is in the range of 10% by weight to 95% by weight based on the weight of the liquid crystal composition excluding the second component.2426-. (canceled)27. The liquid crystal composition according to claim 22 , wherein a ratio of the fourth component is in the range of 5% by weight to 40% by weight based on the weight of the liquid crystal composition excluding the second component.28. The liquid crystal composition according to claim 1 , wherein a maximum temperature of a nematic phase is 70° C. or higher claim 1 , an optical anisotropy (25° C.) at a wavelength of 589 nanometers is 0.08 or more claim 1 , and a dielectric anisotropy (25° C.) at a frequency of 1 kHz is 2 or more.29. A liquid ...

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Номер записи: 38
09-04-2020 дата публикации

LIQUID CRYSTAL FILM, OPTICAL LAMINATE, CIRCULARLY POLARIZING PLATE, AND ORGANIC ELECTROLUMINESCENT DISPLAY DEVICE

Номер: US20200109333A1
Автор: AKUTAGAWA Nobuyuki, INUSHIMA Reiko, KITAMURA Tetsu, TAMURA Akio, YOSHIMASA Keisuke
Принадлежит: FUJIFILM Corporation

The present invention provides a liquid crystal film having an optically anisotropic layer having excellent alignment and excellent adhesiveness. The present invention further provides an optical laminate, a circularly polarizing plate, and an organic EL display device, each of which uses the optically anisotropic layer. The liquid crystal film of an embodiment of the present invention is a liquid crystal film having at least an optically anisotropic layer formed with a liquid crystal composition including a polymerizable liquid crystal compound and a fluoroaliphatic group-containing copolymer, and a support, in which the fluoroaliphatic group-containing copolymer has a repeating unit derived from a fluoroaliphatic group-containing monomer represented by General Formula (1) and a repeating unit having a polymerizable group polymerizable with the polymerizable liquid crystal compound. 2. The liquid crystal film according to claim 1 ,wherein a content of the fluoroaliphatic group-containing copolymer in the liquid crystal composition is 0.01% to 0.20% by mass with respect to a total mass of the polymerizable liquid crystal compound.3. The liquid crystal film according to claim 1 ,wherein n represents an integer of 4 to 6.5. The liquid crystal film according to claim 4 , {'br': None, 'sup': 1', '1', '1', '3', '1', '1', '2', '2', '4', '4', '2', '2, 'E-SP-A-D-G-D-Ar-D-G-D-A-SP-E\u2003\u2003(W)'}, 'wherein the polymerizable liquid crystal compound is a compound represented by General Formula (W),'}in General Formula (W), Ar represents any one group selected from the group consisting of the groups represented by General Formulae (A1) to (A5),{'sup': 1', '2', '3', '1', '1', '2', '1', '2', '3', '4', '1', '2', '1', '2', '3', '4', '1', '2', '1', '2', '1', '2', '3', '4', '1', '2', '3', '4', '1', '2', '3', '1', '1', '2', '3', '4, 'D, D, D, and Deach independently represent a single bond, —CO—O—, —C(═S)O—, —CJJ-, —CJJ-CJJ-, —O—CJJ-, —CJJ-O—CJJ-, —CO—O—CJJ-, —O—CO—CJJ-, -CJJ-O—CO— ...

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Номер записи: 39
07-05-2015 дата публикации

LIQUID CRYSTAL COMPOUND WITH NEGATIVE DIELECTRIC ANISOTROPY, LIQUID CRYSTAL DISPLAY, AND OPTOELECTRONIC DEVICE

Номер: US20150124210A1
Автор: Cheng Kung-Lung, LIAW Chao-Wu, Lin Jian-Wen, Liu Shih-Hsien, WANG Kuo-Chang
Принадлежит: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE

Disclosed is a liquid crystal compound with negative dielectric anisotropy, having a general formula as Formula 1. 7. A liquid crystal display , comprising:a top substrate;a bottom substrate; anda liquid crystal layer disposed between the top substrate and the bottom substrate;{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'wherein the liquid crystal layer comprises the liquid crystal compound with negative dielectric anisotropy as claimed in .'}8. An optoelectronic device claim 7 , comprising the liquid crystal device as claimed in . The application is based on, and claims priority from, Taiwan Application Serial Number 102140034, filed on Nov. 5, 2013, the disclosure of which is hereby incorporated by reference herein in its entiretyThe technical field relates to a liquid crystal compound, and in particular to the synthesis and application thereof.Liquid crystal displays (LCD) based on the twisted nematic (TN) mode is the most common type of flat panel display (FPD). Based on the combination of liquid crystals and TFT arrays, the notebook came up in the beginning of the 1990s, and the development of electronics and materials thereof is continued until now. The prerequisite for liquid crystals is a broad nematic phase range of −40 to 100° C. in order to guarantee the so-called operating temperature range of LCDs. The clearing point of a liquid crystal is the temperature at which the liquid crystal phase vanishes. The clearing point must be at least 10° C. higher than the operating temperature of devices. The liquid crystal molecule can be operated in a display device. After a voltage is applied, the liquid crystal molecule is switched to a direction perpendicular to its original direction due to its inherent dielectric anisotropy. For example, after the positive dielectric anisotropic liquid crystal (utilized in general TN mode or IPS mode devices) is applied a driving voltage, a molecular long axis thereof will be influenced by and parallel to an electric field ...

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Номер записи: 40
25-04-2019 дата публикации

COMPOSITION AND LIQUID CRYSTAL DISPLAY DEVICE

Номер: US20190119573A1
Автор: Negishi Makoto, SUDO Go
Принадлежит: DIC CORPORATION

The present inventors have completed the present invention by examining various liquid crystal compounds and various chemical substances and finding that particular liquid crystal compounds can he combined to achieve the object. The composition contains compounds represented by the general formulae (i) to (vi). The liquid crystal display device contains the composition. 2. The composition according to claim 1 , further comprising a compound represented by the general formula (L).{'br': None, 'sup': L1', 'L1', 'L1', 'L2', 'L2', 'L3', 'L2, 'sub': n', {'sup2': 'L1'}], 'R-A-Z\ue8a0A-Z\ue8a0A-R(L)'}{'sup': L1', 'L2, 'sub': 2', '2, '(Rand Rindependently denote an alkyl group having 1 to 8 carbon atoms, and one —CH— or two or more nonadjacent —CH— groups in the alkyl group are independently optionally substituted with —CH═CH—, —C≡C—, —O—, —CO—, —COO—, or —OCO—,'}{'sup': 'L1', 'nis 0, 1, 2, or 3,'}{'sup': L1', 'L2', 'L3, 'A, A, and Aindependently denote a group selected from the group consisting of'}{'sub': '2', '(a) a 1,4-cyclohexylene group (in which one —CH— or two or more nonadjacent groups are optionally substituted with —O—),'}(b) a 1,4-phenylene group (in which one —CH═ or two or more nonadjacent —CH═ groups are optionally substituted with —N═), and(c) (c) a naphthalene-2,6-diyl group, a 1,2,3,4-tetrahydronaphthalene-2,6-diyl group, or a decahydronaphthalene-2,6-diyl group (one —CH═ or two or mute nonadjacent groups in the naphthalene-2,6-diyl group or in the 1,2,3,4-tetrahydronaphthalene-2,6-diyl group are optionally substituted with —N═),the groups (a), (b), and (c) are independently optionally substituted with a cyano group, a fluorine atom, or a chlorine atom,{'sup': L1', 'L2, 'sub': 2', '2', '2', '4', '2', '2', '2', '2, 'Zand Zindependently denote a single bond, —CHCH—, —(CH)—, —OCH—, —CHO—, —COO—, —OCO—, —OCF—, —CFO—, —CH═N—N═CH—, —CH═CH—, —CF═CF—, or —C≡C—, and'}{'sup': L1', 'L2', 'L1', 'L3, 'if nis 2 or 3, a plurality of As may be the same or different, and ...

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Номер записи: 41
14-05-2015 дата публикации

Dual-Frequency Bistable Liquid Crystal Display And The Liquid Crystal Mixture Thereof

Номер: US20150131039A1
Автор: CHEN Chia-Hui, CHEN Yen-Liang, Huang Chiu-Yuan, WANG Shyh-Yueh, Wang Xin-Jiu
Принадлежит:

A dual-frequency bistable liquid crystal display and the liquid crystal mixture thereof includes liquid crystal cell filled with a liquid crystal mixture which contains dual-frequency liquid crystal, chiral compound, and nematic liquid crystal mixture. The liquid crystal mixture has the characteristics of both the dual-frequency liquid crystal and cholesteric liquid crystal. The dual-frequency bistable liquid crystal display is driven in a frequency modulation mode and can be switched between two optical states by taking advantage of the dielectric anisotropy of the liquid crystal, which results in a short switching time and sharp contrast between two optical states. Furthermore, the maintaining of the two optical states requires no voltage, which does not require the use of a high voltage to destabilize the helical structure of the cholesteric liquid crystal, and does not have to go through a metastable stage. Hence, power consumption and switching time are reduced. 1. A dual-frequency bistable liquid crystal display comprising: a liquid crystal cell filled with a liquid crystal , the liquid crystal cell including two opposite substrates , each of substrates having an inner surface and an outer surface , and the two inner surfaces face toward each other , and on each the inner surface being provided an electrode layer , at least on one of the electrode layers being provided an alignment layer , and a color layer being provided on the outer surface of one of the substrates; the dual-frequency bistable liquid crystal display being characterized in that:the liquid crystal is a dual-frequency liquid crystal mixture formed by mixing dual-frequency liquid crystal, chiral compound, and a nematic liquid crystal mixture together,when at a low frequency, a dielectric anisotropy of the dual-frequency liquid crystal mixture is positive, and when at a high frequency, the dielectric anisotropy of the dual-frequency liquid crystal mixture is negative, and a dielectric anisotropy ...

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Номер записи: 42
21-05-2015 дата публикации

Optical Elements With Alignment Facilities For Optical Dyes

Номер: US20150138492A1
Автор: Anil Kumar, Jiping Shao, Peter C. Foller
Принадлежит: Transitions Optical Inc

The present invention relates to optical elements, such as but not limited to ophthalmic elements, comprising an alignment facility for an optical dye. The optical elements include a substrate; and an alignment facility for an optical dye connected to at least a portion of the substrate, where the alignment facility is an at least partial coating of an at least partially ordered liquid crystal material having at least a first general direction.

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Номер записи: 43
07-08-2014 дата публикации

LIQUID-CRYSTALLINE MEDIUM AND HIGH-FREQUENCY COMPONENTS COMPRISING SAME

Номер: US20140217325A1
Автор: KLASS Dagmar, Manabe Atsutaka
Принадлежит: Merck Patent GmBH

The present invention relates to liquid-crystalline media and to high-frequency components comprising same, especially microwave components for high-frequency devices, such as devices for shifting the phase of microwaves, in particular for microwave phased-array antennas. 6. Liquid-crystalline medium according to claim 1 , characterized in that the proportion of compounds of the formula I in the mixture as a whole is in the range from 5 to 80% by weight.7. Liquid-crystalline medium according to claim 1 , characterized in that the proportion of compounds of the formula IA in the mixture as a whole is in the range from 1 to 20% by weight.8. Liquid-crystalline medium according to claim 1 , characterized in that the proportion of compounds of the formula IB in the mixture as a whole is in the range from 5 to 60% by weight.9. Liquid-crystalline medium according to claim 1 , characterized in that the proportion of compounds of the formula IC in the mixture as a whole is in the range from 3 to 50% by weight.10. Liquid-crystalline medium according to claim 1 , characterized in that the proportion of compounds of the formula II in the mixture as a whole is in the range from 10 to 80% by weight.11. Liquid-crystalline medium according to claim 1 , characterized in that the proportion of compounds of the formula III in the mixture as a whole is in the range from 1 to 30% by weight.12. Liquid-crystalline medium according to claim 1 , characterized in that the proportion of compounds of the formula IV and V in the mixture as a whole is in the range from 1 to 40% by weight.13. Process for the preparation of a liquid-crystalline medium according to claim 1 , characterized in that at least one compound of the formula I is mixed with at least one further liquid-crystalline compound claim 1 , and additives are optionally added.16. Component for high-frequency technology claim 1 , characterized in that it comprises a liquid-crystalline medium according to .17. Component according to ...

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Номер записи: 44
28-05-2015 дата публикации

Liquid crystal composition

Номер: US20150147490A1
Автор: Chul In JOUNG, Doo Young HUH, Ji Youn Lee, Seong Jin Kim, Su Young Ryu
Принадлежит: LG Chem Ltd

Provided are a liquid crystal composition, a liquid crystal film and a display device. The liquid crystal composition according to the present application may form a liquid crystal layer in which staining due to a thickness difference does not occur even in large-area coating such that a liquid crystal layer can be formed on a base layer having erosivity to a raw material since the liquid crystal composition may have a suitable solubility even in a solvent in which solubility is normally low.

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Номер записи: 45
26-05-2016 дата публикации

LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL DISPLAY DEVICE

Номер: US20160145491A1
Автор: FURUSATO YOSHIMASA, Saito Masayuki
Принадлежит:

A liquid crystal composition satisfying at least one of characteristics such as a high maximum temperature of nematic phase, a low minimum temperature of nematic phase, small viscosity, suitable optical anisotropy, large positive dielectric anisotropy, large specific resistance, high stability to UV light and heat or a large elastic constant, or having a suitable balance regarding at least two of the characteristics, and an AM device having a short response time, a large voltage holding ratio, a low threshold voltage, a large contrast ratio and a long service life, etc. are described. The composition has a nematic phase and contains an additive that can suppress formation of an impurity, and a specific compound having large dielectric anisotropy as a first component, and may contain a specific compound having a high maximum temperature or small viscosity as a second component. The AM device is an LCD device including the composition. 3. (canceled)5. The liquid crystal composition of claim 1 , wherein a proportion of the first component is in a range of 10 wt % to 90 wt % based on a weight of the liquid crystal composition.8. The liquid crystal composition of claim 6 , wherein a proportion of the second component is in a range of 10 wt % to 90 wt % based on a weight of the liquid crystal composition.9. The liquid crystal composition of claim 1 , wherein a maximum temperature of a nematic phase is 70° C. or higher claim 1 , an optical anisotropy (measured at 25° C.) at a wavelength of 589 nanometers is 0.07 or more and a dielectric anisotropy (measured at 25° C.) at a frequency of 1 kHz is 2 or more.10. A liquid crystal display device claim 1 , including the liquid crystal composition of .11. The liquid crystal display device of claim 10 , of which an operating mode includes a TN mode claim 10 , an ECB mode claim 10 , an OCB mode claim 10 , an IPS mode claim 10 , an FFS mode or an FPA mode claim 10 , and a driving mode includes an active matrix mode.12. Use of the ...

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Номер записи: 46
02-06-2016 дата публикации

COMPOSITION FOR OPTICAL FILM AND FILMS AND DISPLAY DEVICE

Номер: US20160152896A1
Автор: Kwon Bok Soon, Park Sang Ho, YOO Joungeun
Принадлежит:

A composition for an optical film, including a homeotropic liquid crystal, a silane or germane compound including at least one fluorine at a terminal end thereof, and a polymerizable compound. 1. A composition for an optical film , comprising:a homeotropic liquid crystal;a silane or germane compound comprising at least one fluorine at a terminal end thereof; anda polymerizable compound.4. The composition for an optical film of claim 1 , wherein the polymerizable compound is represented by Chemical Formula C:{'br': None, 'sup': 3', '4, 'sub': 2', 's1', 'T1', '(3-T1)', '2', 'q1', '2', 'q2', '(3-T2)', '2', 's2', 'T2, '(P—(CH))—CR(CH)—O—(CH)—CR—((CH)—P)'}wherein in Chemical Formula C,R is hydrogen or a methyl group,{'sup': 3', '4, 'Pand Pare each independently a polymerizable functional group,'}S1, S2, q1, and q2 are each independently 0 or 1,T1 and T2 are each independently 2 or 3.5. The composition for an optical film of claim 1 , wherein the polymerizable compound comprises a compound having 4 to 10 acryloyl or acryloxy groups.6. The composition for an optical film of claim 1 , further comprising a solvent claim 1 , andwherein the composition comprises about 5 to about 50 percent by weight of the homeotropic liquid crystal, about 0.1 to about 1.1 percent by weight of the silane or germane compound, and about 1 to about 10 percent by weight of the polymerizable compound based on the total weight of the composition, andwherein the rest of the composition is the solvent.7. The composition for an optical film of claim 1 , further comprising a photoinitiator claim 1 , wherein an amount of the photoinitiator is about 0.1 to about 2 percent by weight based on the total weight of the composition.8. An optical film comprising:a substrate, anda liquid crystal layer positioned on one side of the substrate,wherein the liquid crystal layer comprises a homeotropic liquid crystal, a silane or germane compound comprising at least one fluorine at a terminal end thereof, and a polymer ...

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Номер записи: 47
21-08-2014 дата публикации

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

Номер: US20140231712A1
Автор: Kawamura Jouji
Принадлежит: DIC CORPORATION

A liquid crystal composition of the present invention has a liquid phase over a wide temperature range, low viscosity, good solubility at a low temperature, high resistivity and voltage holding ratio, and stability to heat and light, and can thus provide, in high yield, a liquid crystal display device having good display quality and causing little display defects such as image sticking, dropping marks, and the like. A liquid crystal display device using the liquid crystal composition of the present invention is useful, particularly useful for a liquid crystal display device for active matrix driving, because both fast response and suppression of display defects are achieved, and the liquid crystal display device can be applied to a liquid crystal display device for a VA mode, a PSVA mode, or a TN mode. 120-. (canceled)39. A liquid crystal display device for active matrix driving comprising the liquid crystal composition according to .40. A liquid crystal display device for an IPS mode claim 21 , a FFS mode claim 21 , or a VA-IPS mode claim 21 , comprising the liquid crystal composition according to . The present invention relates to a nematic liquid crystal composition useful as a liquid crystal display material and exhibiting a positive value of dielectric anisotropy (Δ∈), and also relates to a liquid crystal display device using the composition.Liquid crystal display devices have been used for watches and electronic calculators, various measuring apparatuses, automotive panels, word processors, electronic notebooks, printers, computers, televisions, watches, advertising displays, etc. Typical examples of a liquid crystal display mode include a TN (twisted nematic) mode, a STN (super twisted nematic) mode, a vertical alignment mode and an IPS (in-plane switching) mode using TFT (thin-film transistor), and the like. Liquid crystal compositions used for these liquid crystal display devices are required to have stability to external stimuli such as moisture, air, heat ...

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Номер записи: 48
17-06-2021 дата публикации

LIQUID CRYSTAL MATERIAL, METHOD OF MANUFACTURING LIQUID CRYSTAL DISPLAY PANEL, AND DISPLAY PANEL

Номер: US20210179941A1
Автор: Lan Song
Принадлежит:

The present disclosure provides a liquid crystal material, a method of manufacturing a liquid crystal display panel, and a display panel. The display panel includes a thin film transistor substrate, a color film substrate, a polymer layer structure, and a liquid crystal layer. During the preparation, after three different irradiations, the liquid crystal material is directly polymerized into the first polymer layer structure and the second polymer layer structure under the irradiations, eliminating the black matrix structure and the polyimide alignment film structure, improving the display effect of the panel, and reducing preparation costs. 1. A liquid crystal material , comprising:liquid crystal molecules; andan additive mixed with the liquid crystal molecules,wherein the additive polymerizes under irradiation and forms a polymer layer structure, andthe additive comprises a reactive material comprising a peroxide.2. The liquid crystal material according to claim 1 , wherein the additive further comprises a vertical alignment material.4. The liquid crystal material according to claim 2 , wherein a mass percentage of the reactive material is 1.0% to 20% claim 2 , a mass percentage of the vertical alignment material is 1.0% to 5.0% claim 2 , and a mass percentage of the liquid crystal molecules is 75% to 90%.5. A liquid crystal material claim 2 , comprising:liquid crystal molecules; andan additive mixed with the liquid crystal molecules,wherein the additive polymerizes under irradiation and forms a polymer layer structure.6. The liquid crystal material according to claim 5 , wherein the additive comprises a reactive material and a vertical alignment material.8. The liquid crystal material according to claim 6 , wherein a mass percentage of the reactive material is 1.0% to 20% claim 6 , a mass percentage of the vertical alignment material is 1.0% to 5.0% claim 6 , and a mass percentage of the liquid crystal molecules is 75% to 90%.9. A method of manufacturing a liquid ...

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Номер записи: 49
28-08-2014 дата публикации

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

Номер: US20140239226A1
Автор: Kawakami Shotaro, SUDO Go
Принадлежит: DIC CORPORATION

A liquid crystal composition of the present invention is used for a liquid crystal display device of an active matrix driving mode which is required to have fast response. The liquid crystal composition has negative dielectric anisotropy, a large absolute value thereof, and low viscosity. Also, the liquid crystal composition has excellent liquid crystallinity that does not decrease Δn and T, and the like, and exhibits a stable liquid crystal phase within a wide temperature range. Further, the liquid crystal composition is chemically stable to heat, light, water, and the like and is thus suitable for use in a liquid crystal display device in which display defects are suppressed in large-size application requiring high reliability. A liquid crystal display device using the liquid crystal composition can be suitably used as a liquid crystal display device of a VA mode or the like. 115-. (canceled)17. The liquid crystal composition according to claim 16 , wherein Δ∈ at 25° C. is within a range of −2.0 to −6.0 claim 16 , refractive index anisotropy (Δn) at 25° C. is within a range of 0.08 to 0.14 claim 16 , viscosity (η) at 20° C. is within a range of 10 to 30 mPa·s claim 16 , and a nematic-isotropic liquid phase transition temperature (T) is within a range of 60° C. to 120° C.19. The liquid crystal composition according to claim 18 , wherein a content of the third component is 5% to 50% by mass.22. The liquid crystal composition according to claim 21 , comprising the compound represented by the formula (I) claim 21 , at least one compound represented by the general formula (II-2) claim 21 , and at least one compound represented by the general formula (III-1).23. The liquid crystal composition according to claim 21 , comprising the compound represented by the formula (I) claim 21 , at least one compound represented by the general formula (II-2) claim 21 , and at least one compound represented by the general formula (III-2).24. The liquid crystal composition according to ...

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Номер записи: 50
22-09-2022 дата публикации

Multifunctional liquid crystalline photoreactive polymers for polarization holography

Номер: US20220298420A1
Автор: Junren WANG, Lu Lu, Mengfei WANG, Ryan LI
Принадлежит: Meta Platforms Technologies LLC

A multifunctional liquid crystalline photoreactive polymer in which at least some of the polymer side-chains have an ultraviolet photoreactive moiety and at least some of the polymer side-chains have a calamitic mesogenic moiety are provided. At least some of the polymer side-chains have a photo-curable moiety a thermal-curable moiety. In some embodiments, the polymer is in the form of a co-polymer. In some embodiments, the polymer is in the form of a ter-polymer. The polymer is used in applications that require stable birefringement films. Such films are produced from the polymer by subjecting the polymer to ultra-violet light to cause side-chain cross-linking thereby inducing anisotropy. The anisotropy is then amplified by exposing the polymer to an elevated temperature.

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Номер записи: 51
25-06-2015 дата публикации

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

Номер: US20150175885A1
Автор: Kawamura Jouji
Принадлежит: DIC CORPORATION

There is provided a liquid crystal composition having a positive dielectric anisotropy including: a dielectrically positive component (A) containing a dielectrically positive compound represented by Formula (1), and a dielectrically neutral component (B) having a dielectric anisotropy larger than −2 and smaller than +2 and containing at least one of dielectrically neutral compounds represented by Formulae (2.1) and (2.2). 121-. (canceled)42. An active-matrix-driving liquid crystal display device comprising the liquid crystal composition according to . The present invention relates to a nematic liquid crystal composition which is useful as a liquid crystal display material and which has a positive dielectric anisotropy (Δ∈), and the present invention also relates to a liquid crystal display device using such a nematic liquid crystal composition.Liquid crystal display devices have been applied to, for example, watches, calculators, a variety of measuring equipment, panels used in automobiles, word processors, electronic notebooks, printers, computers, television sets, clocks, and advertising boards. Representative examples of types of liquid crystal display devices include a TN (twisted nematic) type, an STN (super twisted nematic) type, and a vertical alignment type and IPS (in-plane switching) type in which a TFT (thin film transistor) is used. Liquid crystal compositions used for such liquid crystal display devices need to satisfy the following requirements: being stable to external elements such as moisture, air, heat, and light; having a liquid crystal phase in a broad temperature range mainly including room temperature as much as possible; having a low viscosity; and enabling a low driving voltage. Liquid crystal compositions contain several to tens of compounds to adjust, for instance, dielectric anisotropy (Δ∈) and/or refractive index anisotropy (Δn) to be values optimum to individual display devices.A liquid crystal composition having a negative Δ∈ is used in ...

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Номер записи: 52
01-07-2021 дата публикации

LIQUID CRYSTAL MIXTURE AND LIGHT MODULATING DEVICE USING THE SAME

Номер: US20210198575A1
Автор: WANG FEI, Xu Hui, Xue Jiuzhi, Zhang Hongwei
Принадлежит: Smart Liquid Crystal Technologies Co., Ltd.

A liquid crystal mixture applied in light modulating devices includes at least one compound selected from the group of compounds of formula I, at least one compound selected from the group of compounds of formula II and/or formula III, and at least one chiral compound. A light modulating device includes the liquid crystal mixture, where the light modulating device has reduced haze in the transparent state while increased opacity in the light scattering state. 2. The liquid crystal mixture as defined in claim 1 , comprising at least two compounds selected from the group of compounds of formula I.4. The liquid crystal mixture as defined in claim 1 , wherein Rand Reach independently denote —F claim 1 , —Cl claim 1 , —CN claim 1 , —OCF claim 1 , —CFor an unsubstituted chain alkyl group with 1-25 C atoms.6. The liquid crystal mixture as defined in claim 1 , further comprising at least one polymerizable monomer.7. The liquid crystal mixture as defined in claim 6 , further comprising at least one polymerization initiator.8. The liquid crystal mixture as defined in claim 1 , wherein the compound of formula I is 10%-34% by weight of the liquid crystal mixture.9. A light modulating device comprising the liquid crystal mixture as defined in claim 1 , including two stable states: the transparent state where substantially all the incident light goes through and the light scattering state where substantially all the incident light is scattered claim 1 , wherein the transparent state and the light scattering state may be switched by applying electrical field.10. The light modulating device as defined in claim 9 , wherein the haze of the transparent state is no more than 15%.11. The light modulating device as defined in claim 9 , wherein the haze of the light scattering state is no less than 80%. This application is the National Stage of International Application No. PCT/CN2018/116363, filed Nov. 20, 2018, which claims the benefit of Chinese Application No. 201711184202.6, filed ...

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Номер записи: 53
01-07-2021 дата публикации

DISPLAY SUBSTRATE HAVING WAVELENGTH-ACTUATABLE COLOR FILTER, DISPLAY APPARATUS HAVING THE SAME, AND METHOD OF OPERATING DISPLAY APPARATUS

Номер: US20210200022A1
Автор: LIU Deqiang, SHAO Xibin, Song Ping, WANG Feifei, Zhan Hongming, ZHAO Hebin
Принадлежит:

The present application discloses a display substrate. The display substrate includes a base substrate; a color filter on the base substrate and including a plurality of color filter blocks; and an actuator configured to actuate each of the plurality of color filter blocks thereby controlling a wavelength of light transmitted through each of the plurality of color filter blocks. 1. A display substrate , comprising:a base substrate;a color filter on the base substrate and comprising a plurality of color filter blocks; andan actuator configured to actuate each of the plurality of color filter blocks thereby controlling a wavelength of light transmitted through each of the plurality of color filter blocks.2. The display substrate of claim 1 , wherein the plurality of color filter blocks comprise at least a plurality of first color filter blocks and a plurality of second color filter blocks; andthe actuator is configured to actuate each of the plurality of first color filter blocks so that light of a first color transmitted through each of the plurality of first color filter blocks, and actuate each of the plurality of second color filter blocks so that light of a second color transmitted through each of the plurality of second color filter blocks, the first color being different from the second color.3. The display substrate of claim 1 , wherein the actuator is configured to control a thickness of each of the plurality of color filter blocks thereby controlling the wavelength of light transmitted through the plurality of color filter blocks.4. The display substrate of claim 1 , wherein each of the plurality of color filter blocks comprises a liquid crystal elastomer.5. The display substrate of claim 4 , wherein each of the plurality of color filter blocks comprises a co-polymer of a liquid crystal elastomer claim 4 , a low molecular weight liquid crystal molecule claim 4 , and a crosslinking monomer.6. The display substrate of claim 5 , wherein the crosslinking monomer ...

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Номер записи: 54
30-06-2016 дата публикации

Composition for optical film, and films and display device

Номер: US20160187552A1
Автор: Bok Soon Kwon, Joungeun YOO, Ki Tae Park, Sang Ho Park, Tae-Rae KIM
Принадлежит: SAMSUNG ELECTRONICS CO LTD

A composition for an optical film, including a first liquid crystal compound represented by the following Chemical Formula 1 and a second liquid crystal compound represented by the following Chemical Formula 2, wherein a difference between a solubility parameter of the first liquid crystal compound and a solubility parameter of the second liquid crystal compound is about 2.50 to about 2.90 wherein in Chemical Formulae 1 and 2, X, R 1 to R 3 , Z, n, m, and p are the same as described in the detailed description.

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Номер записи: 55
28-06-2018 дата публикации

POLYMERIZABLE COMPOSITION INCLUDING POLYMERIZABLE LIQUID CRYSTAL COMPOUND, FILM, AND METHOD OF MANUFACTURING FILM

Номер: US20180179445A1
Автор: ANZAI Akihiro, Inada Hiroshi, KATOH Shunya, SAIKI Yuki
Принадлежит: FUJIFILM Corporation

The present invention provides a polymerizable composition including a polymerizable liquid crystal compound of Formula (I) and a urethane (meth)acrylate monomer including a urethane bond and three or more (meth)acryloyl groups; 2. The polymerizable composition according to claim 1 , wherein claim 1 , in Formula (II) claim 1 , R represents a hydrogen atom.3. The polymerizable composition according to claim 1 , wherein A's each independently represent a cyclohexylene group that may have a sub stituent or a phenylene group that may have a substituent claim 1 , and the polymerizable liquid crystal compound includes a cyclohexylene group that may have at least one substituent and a phenylene group that may have at least one substituent.4. The polymerizable composition according to claim 3 , wherein the cyclohexylene group is an unsubstituted cyclohexylene group claim 3 , and the phenylene group has a group represented by —C(═O)—X-Sp-Q claim 3 , as a substituent claim 3 , wherein Xrepresents a single bond claim 3 , —O— claim 3 , —S— claim 3 , or —N(Sp-Q)- claim 3 , or a nitrogen atom in which Qand Spform a ring structure together claim 3 , Spand Speach independently represent a single bond and a linking group selected from the group consisting of a linear or branched alkylene group having 1 to 20 carbon atoms and a group in which one or more —CH-'s in a linear or branched alkylene group having 1 to 20 carbon atoms are substituted with O claim 3 , S claim 3 , NH claim 3 , N(CH)— claim 3 , —C(═O)— claim 3 , —OC(═O)— claim 3 , or —C(═O)O— claim 3 , and Qand Qeach independently represent a hydrogen atom claim 3 , a cycloalkyl group claim 3 , a group in which one or more —CH-'s in a cycloalkyl group are substituted with —O claim 3 , S claim 3 , NH claim 3 , N(CH)— claim 3 , —C(═O) claim 3 , —OC(═O)— claim 3 , or —C(═O)O— claim 3 , or any one polymerizable group selected from the group consisting of groups represented by Formulae Q-1 to Q-5.5. The polymerizable composition ...

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Номер записи: 56
13-06-2019 дата публикации

LIQUID CRYSTALLINE MEDIUM AND LIQUID CRYSTAL DISPLAY

Номер: US20190177618A1
Автор: CHOI Yong-Hyun, KANG Jae-Hyun, SONG Dong-Mee, YUN Yong-Kuk
Принадлежит: Merck Patent GmBH

The present invention relates to a liquid crystalline medium which comprises one or more mesogenic compounds selected from the group of compounds of formulae I and II as set forth in claim one or more chiral compounds and one or more polymerisable compounds, to a composite system obtained from or respectively obtainable from the medium by polymerising the one or more polymerisable compounds, and to liquid crystal displays comprising the composite system, in particular displays operating in reflective mode. The present invention further relates to a process for preparing the composite system comprising spatially selective polymerisation. 2. The medium according to claim 1 , wherein the one or more polymerisable compounds comprise at least one compound which contains a cycloalkyl group claim 1 , preferably selected from unsubstituted or substituted bridged bicyclic rings and unsubstituted or substituted adamantyl claim 1 , more preferably isobornyl or adamantyl.3. The medium according to claim 1 , wherein the one or more polymerisable compounds comprise one claim 1 , two or more acrylate and/or methacrylate groups.4. The medium according to claim 1 , wherein the one or more chiral compounds have an absolute value of the helical twisting power of 20 μmor more claim 1 ,and wherein preferably the one or more chiral compounds are present in a concentration such that the medium exhibits a selective reflection with a wavelength in the near UV or in the visible range of the electromagnetic spectrum.5. A composite system claim 1 , obtained from or respectively obtainable from the medium according to by polymerising the one or more polymerisable compoundswherein the system comprisesa low molecular weight component comprising the one or more mesogenic compounds selected from the group of compounds of formulae I and II, and the one or more chiral compounds, and 'comprising one or more polymeric structures obtained by or respectively obtainable from polymerising the one or more ...

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Номер записи: 57
09-07-2015 дата публикации

LIQUID CRYSTAL COMPOSITION, METHOD FOR MANUFACTURING THE SAME, AND FILM

Номер: US20150191652A1
Автор: KATOH Shunya, MATSUYAMA Hiroshi, Yoshikawa Masaru
Принадлежит: FUJIFILM Corporation

A method for manufacturing a liquid crystal composition, the method including concurrently obtaining a liquid crystal compound represented by the formula (I) and a liquid crystal compound represented by the formula (II), by allowing a compound represented by the formula (III) to react with a carboxylic acid represented by the formula (IV) and a carboxylic acid represented by the formula (V), wherein Prepresents a polymerizable group; Sprepresents a Cdivalent aliphatic group, etc; Trepresents a 1,4-phenylene group; Trepresents a divalent group having a single bond or cyclic structure; Arepresents —COO—, etc; Aand Arepresents —OCO—, etc; X represents a hydrogen atom, Calkyl group, etc; Yand Yrepresents O, NRor S; Rrepresents a hydrogen atom or methyl group; Formula (I) P-Sp-T-A-B-A-T-Sp-P; Formula (II) P-Sp-T-A-B-A-T-X; Formula (III) being HY—B—YH; Formula (IV) P-Sp-T-COOH; Formula (V) X-T-COOH. 1. A method for manufacturing a liquid crystal composition , the method comprising concurrently obtaining a liquid crystal compound represented by the formula (I) below and a liquid crystal compound represented by the formula (II) below , by allowing a compound represented by the formula (III) below to react with a carboxylic acid represented by the formula (IV) below and a carboxylic acid represented by the formula (V) below;{'br': None, 'sup': 1', '1', '1', '1', '2', '1', '1', '1, 'P-Sp-T-A-B-A-T-Sp-P\u2003\u2003Formula (I)'}{'br': None, 'sup': 1', '1', '1', '1', '3', '2, 'P-Sp-T-A-B-A-T-X\u2003\u2003Formula (II)'}{'br': None, 'sup': 1', '2, 'HY—B—YH\u2003\u2003Formula (III)'}{'br': None, 'sup': 1', '1', '1, 'P-Sp-T-COOH\u2003\u2003Formula (IV)'}{'br': None, 'sup': '2', 'X-T-COOH\u2003\u2003Formula (V)'}wherein,{'sup': '1', 'Prepresents a polymerizable group;'}{'sup': '1', 'sub': 3-12', '2', '2, 'Sprepresents a Cdivalent aliphatic group which may have a substituent, and one CHor two or more non-adjacent (CH) s in the aliphatic group may be substituted by —O—, —S—, —OCO—, — ...

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Номер записи: 58
04-06-2020 дата публикации

LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL DISPLAY DEVICE

Номер: US20200172811A1
Автор: Kurisawa Kazuki, Ohishi Haruki, SUDO Go, Taniguchi Shirou
Принадлежит: DIC CORPORATION

A problem to be solved by the present invention is to provide a liquid crystal composition having negative dielectric anisotropy (Δε), large refractive index anisotropy (Δn), a high nematic phase-isotopic liquid phase transition temperature (T), a low solid phase-nematic phase transition temperature (T), sufficiently low rotational viscosity (γ), and large elastic constant (K), and also to provide a VA-mode, FFS-mode, or IPS-mode liquid crystal display device using the liquid crystal composition, satisfying a high response speed, high VHR, and excellent low-temperature storage stability, and having no or very few display defects. According to the liquid crystal composition of the present invention, the problem is solved by a liquid crystal composition containing compounds represented by general formula (S1), general formula (S2), and general formula (S3). 4. The liquid crystal composition according to claim 3 , wherein the total content of the compounds contained in the liquid crystal composition and represented by the general formula (S1) claim 3 , the general formula (S2) claim 3 , the general formula (S3) claim 3 , the general formula (N-01) claim 3 , the general formula (N-02) claim 3 , the general formula (N-03) claim 3 , the general formula (N-04) claim 3 , the general formula (NU-01) claim 3 , the general formula (NU-02) claim 3 , the general formula (NU-03) claim 3 , the general formula (NU-04) claim 3 , the general formula (NU-05) claim 3 , and the general formula (NU-06) is 85% by mass to 100% by mass relative to the total of the composition.5. The liquid crystal composition according to claim 1 , comprising one or two or more compounds having a terphenyl structure or a tetraphenyl structure and a dielectric anisotropy (Δε) of more than +2.8. The liquid crystal composition according to claim 3 , comprising 10% by mass to 50% by mass of the compound represented by the general formula (S1) claim 3 , 14% by mass to 34% by mass of the compound represented by ...

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Номер записи: 59
18-09-2014 дата публикации

COMPOUND HAVING 2-FLUOROPHENYLOXYMETHANE STRUCTURE

Номер: US20140275577A1
Автор: Kaneoya Masakazu, Kusumoto Tetsuo, Osawa Masashi, Takeuchi Kiyofumi, Tojo Kenta
Принадлежит: DIC CORPORATION

The present invention relates to a compound having a 2-fluorophenyloxymethane structure and useful for organic electronic materials and medical and agricultural chemicals, particularly materials for liquid crystal display elements. 112-. (canceled)14. The compound according to claim 13 , wherein in the general formula (1) claim 13 , m represents 1 or 2 claim 13 , and n represents 0.15. The compound according to claim 13 , wherein in the general formula (1) claim 13 , m represents 0 claim 13 , and n represents 1 or 2.16. The compound according to claim 13 , wherein in the general formula (1) claim 13 , Zand Zeach independently represent —CFO— claim 13 , —OCF— claim 13 , —CHCH— claim 13 , or a single bond.19. The compound according to claim 13 , wherein in the general formula (1) claim 13 , Yand Yboth represent fluorine atoms.20. The compound according to claim 13 , wherein in the general formula (1) claim 13 , W represents a fluorine atom claim 13 , a —OCFgroup claim 13 , or a cyano group.21. The compound according to claim 13 , wherein in the general formula (1) claim 13 , W represents a —OCFgroup and Yand Yboth represent hydrogen atoms.22. A liquid crystal composition containing at least one compound according to .23. A liquid crystal display device using the liquid crystal composition according to . The present invention relates to a compound having a 2-fluorophenyloxymethane structure and useful for organic electronic materials and medical and agricultural chemicals, particularly materials for liquid crystal display elements.Liquid crystal display devices have been used for watches and electronic calculators, various measuring apparatuses, automotive panels, word processors, electronic notebooks, printers, computers, televisions, watches, advertising displays, etc. Typical examples of a liquid crystal display mode include a TN (twisted nematic) mode, a STN (super-twisted nematic) mode, a vertical alignment mode and an IPS (in-plane switching) mode using TFT (thin ...

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Номер записи: 60
23-07-2015 дата публикации

NEMATIC LIQUID CRYSTAL COMPOSITION

Номер: US20150203757A1
Автор: Kaneoya Masakazu, Kusumoto Tetsuo, Osawa Masashi, Takeuchi Kiyofumi, Tojo Kenta
Принадлежит: DIC CORPORATION

The present invention relates to a nematic liquid crystal composition useful as an electro-optic liquid crystal display material and having a positive dielectric anisotropy (Δ∈). The liquid crystal composition has refractive index anisotropy (Δn) adjusted to a desired level, a sufficiently low viscosity (η), and a positive dielectric anisotropy (Δ∈) while degradation of the temperature range of the nematic phase is avoided by suppressing the decrease in nematic phase-isotropic liquid phase transition temperature (T) and the increase in lower limit temperature of the nematic phase. The liquid crystal composition contains one or more compounds selected from compounds represented by general formula (LC0) and one or more compounds selected from a group of compounds represented by general formula (LC1) to general formula (LC5). 122.-. (canceled)25. The liquid crystal composition according to claim 23 , wherein Xin general formula (LC0) represents F.30. The liquid crystal composition according to claim 23 , wherein the liquid crystal composition contains one or more compounds in which Rto R claim 23 , R claim 23 , and/or Rpresent in general formula (LC1) to general formula (LC5) represents an alkenyl group having 2 to 5 carbon atoms.31. The liquid crystal composition according to claim 23 , wherein the liquid crystal composition contains one or more compounds in which at least one of Ato Aand/or Ato Apresent in general formula (LC0) to general formula (LC5) represents a tetrahydropyran-2 claim 23 ,5-diyl group.32. The liquid crystal composition according to claim 23 , wherein the liquid crystal composition contains one or more compounds in which at least one of Z claim 23 , Z claim 23 , Zto Z claim 23 , Z claim 23 , and Zthat are present in general formula (LC0) and general formula (LC3) to general formula (LC5) represents —CFO— or —OCF—.33. The liquid crystal composition according to claim 23 , wherein the liquid crystal composition contains 30 to 70% by mass of the ...

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Номер записи: 61
12-07-2018 дата публикации

Liquid-crystalline medium

Номер: US20180195002A1
Автор: Chang-Jun Yun, Chang-Suk Choi, Heui-Seok Jin, Yeon-Jeong Han, Yong-Kuk Yun
Принадлежит: Merck Patent GmBH

The present invention relates to liquid-crystalline media comprising one or more compounds selected from the compounds of formula I and compounds of formulae CV, OT and CP wherein the occurring groups have the meanings defined herein, and to liquid-crystal displays containing these media, especially to active-matrix displays and in particular to IPS and FFS displays. The invention further relates to a process for the fabrication of liquid crystal displays using the ODF process.

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Номер записи: 62
30-07-2015 дата публикации

POLYMER/LIQUID CRYSTAL COMPOSITE AND LIQUID CRYSTAL DISPLAY DEVICE INCLUDING THE SAME

Номер: US20150212348A1
Автор: KUBOTA Daisuke
Принадлежит:

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. 1. (canceled)2. A semiconductor device comprising:a gate electrode over a substrate;a gate insulating film over the gate electrode;an oxide semiconductor layer over the gate insulating film;a first electrode over the oxide semiconductor layer;a second electrode over the oxide semiconductor layer;an insulating film over the first electrode and the second electrode;a pixel electrode over the insulating film;a common electrode over the insulating film; and 'wherein the pixel electrode is electrically connected to the second electrode through a contact hole in the insulating film, and', 'a liquid crystal layer over the pixel electrode and the common electrode,'}wherein the liquid crystal layer includes a reaction initiator.3. The semiconductor device according to claim 2 ,wherein the liquid crystal layer includes a plurality domains, andwherein a size of each of the plurality domains is smaller than and equal to 3 μm.6. The semiconductor device according to claim 2 ,wherein the liquid crystal layer comprises a blue phase.7. The semiconductor device according to claim 2 ,wherein the liquid crystal layer comprises a network polymer.8. A semiconductor device comprising:a gate electrode over a substrate;a gate insulating ...

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Номер записи: 63
27-07-2017 дата публикации

LIQUID CRYSTAL COMPOSITION HAVING NEGATIVE DIELECTRIC ANISOTROPY AND DISPLAY DEVICE THEREOF

Номер: US20170210987A1
Автор: Han Wenming, MA Wenyang, Xu Haibin
Принадлежит: Jiangsu Hecheng Display Technology Co., Ltd.

The present invention discloses a liquid crystal composition comprising: 15-35% by weight of a compound of general formula I; 3-20% by weight of a compound of general formula II; 5-30% by weight of a compound of general formula III; 1-20% by weight of a compound of general formula IV; 10-35% by weight of a compound of general foiiiiula V-1 and/or a compound of general formula V-2; and 1-25% by weight of a compound of general formula VI. The liquid crystal composition provided by the present invention has the characteristics of an appropriate optical anisotropy, an appropriate dielectric anisotropy, a higher clearing point, a better voltage holding ratio, and a good UV-resistant stability, etc., and can be applied to a liquid crystal display. 8. The liquid crystal composition having a negative dielectric anisotropy according to claim 1 , wherein the compound of general formula III accounts for 10-30% of the total weight of said liquid crystal composition; the compound of general formula IV accounts for 3-20% of the total weight of said liquid crystal composition; the compound of general formula V-1 and/or general formula V-2 accounts for 12-30% of the total weight of said liquid crystal composition; and the compound of general formula VI-1 accounts for 3-18% of the total weight of said liquid crystal composition.9. The liquid crystal composition having a negative dielectric anisotropy according to claim 8 , wherein the compound of general formula VI-1 accounts for 5-15% of the total weight of said liquid crystal composition.12. A liquid crystal display claim 1 , comprising the liquid crystal composition having a negative dielectric anisotropy of .13. A liquid crystal display claim 11 , comprising the mixture of . The present invention relates to a liquid crystal composition, in particularly to a liquid crystal composition having an appropriate optical anisotropy, an appropriate dielectric anisotropy, a higher clearing point and a good UV-resistant stability, and a ...

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Номер записи: 64
04-08-2016 дата публикации

MESOGENIC COMPOUNDS AND MESOGENIC MEDIA

Номер: US20160222293A1
Автор: ADLEM Kevin, NAMUTEBI Mariam, Parri Owain Llyr, Saxton Patricia Eileen, SNOW Benjamin, TUFFIN Rachel
Принадлежит: Merck Patent GmBH

The invention relates to bimesogenic compounds of formula I 2. Compounds according to claim 1 , characterized in that MGis selected of partial formula II{'br': None, 'sup': 11', '1', '12, 'sub': 'k', '-A-(Z-A)-\u2003\u2003II'}wherein{'sup': '1', 'sub': 2', '2', '2', '2', '2', '2', '2', '4', '2', '2, 'Zis, independently of each other in each occurrence, a single bond, —COO—, —COO—, —O—CO—O—, —OCH—, —CHO—, —OCF—, —CFO—, —CHCH—, —(CH)—, —CFCF—, —CH═CH—, —CF═CF—, —CH═CH—COO—, —OCO—CH═CH— or —C≡C—, optionally substituted with one or more of F, S and/or Si, preferably substituted with one or more F-atoms, preferably a single bond,'}{'sup': 11', '12', '11', '12, 'sub': '2', 'Aand Aare each independently of each other in each occurrence 1,4-phenylene, wherein in addition one or more CH groups may be replaced by N, trans-1,4-cyclo-hexylene in which, in addition, one or two non-adjacent CHgroups may be replaced by O and/or S, 1,4-cyclohexenylene, 1,4-bicyclo-(2,2,2)-octylene, piperidine-1,4-diyl, naphthalene-2,6-diyl, decahydro-naphthalene-2,6-diyl, 1,2,3,4-tetrahydro-naphthalene-2,6-diyl, cyclobutane-1,3-diyl, spiro[3.3]heptane-2,6-diyl or dispiro[3.1.3.1]decane-2,8-diyl, it being possible for all these groups to be unsubstituted, mono-, di-, tri- or tetrasubstituted with F, Cl, CN or alkyl, alkoxy, alkylcarbonyl or alkoxycarbonyl groups with 1 to 7 C atoms, wherein one or more H atoms may be substituted by F or Cl, optionally one or more, preferably one, of the rings Aand Amay be 1,4-phenylene, wherein in addition one or more CH groups may be replaced by N, it being possible for all this group to be unsubstituted, mono-, di-, tri- or tetrasubstituted with F, Cl, CN or alkyl, alkoxy, alkylcarbonyl or alkoxycarbonyl groups with 1 to 7 C atoms, wherein one or more H atoms may be substituted by F or Cl, and'}k is 0, 1, 2, 3 or 4.4. Compounds according to claim 1 , characterized in that MGis selected from the group of formulae II-1 to II-26 and their mirror images{'br': None, '- ...

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Номер записи: 65
23-10-2014 дата публикации

LIQUID CRYSTAL COMPOUNDS CONTAINING A DIFLUOROMETHYLENEOXY LINKING GROUP THAT HYDROGEN SUBSTITUTED BY DEUTERIUM, THEIR PREPARATION AND APPLICATION

Номер: US20140312276A1
Автор: DUAN Ya Jie, HOU Ze Feng, HUA Rui Mao, LU Wen Hai, Wang Jin, YUN Guo Liang, Zhang Xing
Принадлежит:

This invention relates to liquid crystal compound of formula I containing a difluoromethyleneoxy linking group that hydrogen substituted by deuterium and therefore being very suitable for formulating a liquid crystal mixture. A liquid crystal mixture containing such type of liquid crystal compounds can be applied in various display devices. 5. A liquid-crystal mixture comprising component a claim 1 , wherein said component a comprises at least one compound of formula I according to .6. The liquid crystal mixture according to claim 5 , wherein the mass ratio of component a is 1˜80% in the liquid crystal mixture.8. The liquid crystal mixture according to claim 7 , wherein the mass ratio of component b claim 7 , component c claim 7 , component d claim 7 , component e and component f is 1˜70:1˜70:1˜30:1˜30:1˜50 in the liquid crystal mixture.9. The liquid crystal mixture according to claim 7 , consisting of component a-f claim 7 , wherein the mass ratio of component a claim 7 , component b claim 7 , component c claim 7 , component d claim 7 , component e and component f are is 1˜80:1˜70:1˜70:1˜30:1˜30:1˜50 in the liquid crystal mixtures.10. An electro-optical liquid crystal display device containing a liquid crystal mixture according to .11. The electro-optical liquid crystal display device according to claim 10 , wherein display modes of the device are TN claim 10 , STN claim 10 , IPS or VA.14. The liquid crystal mixture according to claim 6 , wherein the mass ratio of component a is 13˜21% in the liquid crystal mixture.15. The liquid-crystal mixture according to claim 7 , wherein the mass ratio of component b is 32˜57% claim 7 ,wherein the mass ratio of component c is 6˜24%,wherein the mass ratio of component d is 3˜8%,wherein the mass ratio of component e is 4˜9%, andwherein the mass ratio of component f is 11˜16%.16. The liquid crystal mixture according to claim 8 , wherein the mass ratio of component b claim 8 , component c claim 8 , component d claim 8 , component ...

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Номер записи: 66
11-08-2016 дата публикации

Polymerizable liquid crystal compound, and compensation film, antireflective film, and display device including the same

Номер: US20160230090A1
Автор: DMITRY Androsov, Jung Im HAN, Sang Ho Park, Won Cheol Jung
Принадлежит: SAMSUNG ELECTRONICS CO LTD

A polymerizable liquid crystal compound is represented by Chemical Formula 1: wherein, in Chemical Formula 1 groups and variables are the same as defined in the detailed description.

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Номер записи: 67
18-07-2019 дата публикации

LIQUID CRYSTAL COMPOSITION, OPTICAL FILM, POLARIZING PLATE, AND IMAGE DISPLAY DEVICE

Номер: US20190218460A1
Автор: IIJIMA Koji, KATOH Shunya, Nakamura Yuki, Suzuki Masaaki
Принадлежит: FUJIFILM Corporation

An object of the present invention is a liquid crystal composition which has excellent alignment properties, improves a surface state of an optically anisotropic layer to be formed, and improves adhesiveness with a polarizer, an optical film using the same, a polarizing plate, and an image display device. The liquid crystal composition according to the present invention is a liquid crystal composition containing a copolymer having a repeating unit represented by Formula (I) and a repeating unit represented by Formula (II), and a liquid crystal compound. 3. The liquid crystal composition according to claim 2 ,{'sup': '21', 'wherein Rin Formula (III) is an alkyl group having 1 to 20 carbon atoms in which at least one hydrogen atom is substituted with a fluorine atom.'}5. The liquid crystal composition according to claim 2 ,wherein a content of the repeating unit represented by Formula (I) is 10% to 50% by mass with respect to all repeating units, a content of the repeating unit represented by Formula (II) is 5% to 50% by mass with respect to all repeating units, and a content of the repeating unit represented by Formula (III) is 10% to 60% by mass with respect to all repeating units in the copolymer.8. The liquid crystal composition according to claim 1 ,wherein the liquid crystal compound is a rod-like liquid crystal compound having a polymerizable group or a disk-like liquid crystal compound having a polymerizable group.9. The liquid crystal composition according to claim 1 , further comprising: {'br': None, 'sub': n', 'm, 'sup': '100', '(Z)-L-(Q)\u2003\u2003(VI)'}, 'a compound represented by Formula (VI) at a content of 0.5% to 7.0% by mass with respect to the liquid crystal compound,'}{'sup': 100', '100, "in Formula (VI), Z represents a substituent having a polymerizable group; n represents an integer of 0 to 4; in a case where n is 2 or greater, two or more Z's may be the same or different from each other; Q represents a substituent containing at least one boron ...

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Номер записи: 68
27-08-2015 дата публикации

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

Номер: US20150240158A1
Автор: Kawamura Joji, Negishi Makoto, Niwa Masahiro
Принадлежит: DIC CORPORATION

A composition contains one or more compounds represented by general formula (i) and one or more compounds represented by general formula (ii), where a content of the compounds represented by general formula (i) is 5% to 30% and a content of the compounds represented by general formula (ii) is 5% to 25%: 17-. (canceled)9. The composition according to claim 8 , wherein one of Xto Xin general formula (i) represents a fluorine atom.12. A liquid crystal display device that uses the composition according to .13. An IPS element that uses the composition according to . The present invention particularly relates to a nematic liquid crystal composition that is useful as a liquid crystal display material and has dielectric anisotropy (Δ∈) that takes a positive value and to a liquid crystal display device that uses the nematic liquid crystal composition.Liquid crystal display devices are being used in watches, calculators, various measurement instruments, automobile panels, word processors, electronic organizers, printers, computers, televisions, clocks, advertising boards, etc. Typical examples of the liquid crystal display mode include TN (twisted nematic) mode, STN (super twisted nematic) mode, and vertical alignment or IPS (in-plane switching) that uses TFT (thin film transistors) mode. Liquid crystal compositions that are used in these liquid crystal display devices are required to be stable against external stimuli such as moisture, air, heat, and light, stay in a liquid crystal phase in a temperature range as wide as possible about room temperature, exhibit low viscosity, and operate at a low drive voltage. A liquid crystal composition is constituted by several to dozens of compounds in order to optimize dielectric anisotropy (Δ∈), refractive index anisotropy (Δn), and other properties for individual display devices.In a horizontal alignment-type display such as a TN, STN, or IPS (in-plane switching) display, a liquid crystal composition having a positive Δ∈ is used. ...

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Номер записи: 69
16-08-2018 дата публикации

LIQUID-CRYSTAL MEDIUM

Номер: US20180230381A1
Автор: OKAMURA Masahiko, SUGIYAMA Yasushi, Takeda Takanori, Tanaka Norihiko
Принадлежит: Merck Patent GmBH

The present invention relates to dielectrically positive liquid-crystalline media comprising one or more compounds of the formula I and II 2. Medium according to characterised in that the total concentration of compounds of formula I is 60% or more.3. Medium according to characterised in that the concentration of compounds of formula II is 5% or more.12. Medium according to characterised in that the total concentration of the compounds of formula I and II is 95% or less.13. Liquid-crystal display claim 1 , characterised in that it contains a medium according to .14. Use of a medium according to in a liquid-crystal display.15. Process for the preparation of a medium according to claim 9 , characterised in that one or more compounds of the formulae I and II claim 9 , are mixed with one or more of the compounds of formula III and/or one or more further mesogenic compounds.16. Process for the preparation of a medium according to claim 10 , characterised in that one or more compounds of the formulae I and II claim 10 , are mixed with one or more of the compounds of formula IV and/or one or more further mesogenic compounds. The present invention relates to liquid-crystalline (LC) media with positive dielectric anisotropy (Δε) and to liquid-crystal displays containing these media, especially to displays addressed by an active matrix and in particular to displays of the VA mode.There is a great demand for liquid crystal displays (LCD), in particular of the matrix type, which have at the same time very high specific resistance as well as a large working-temperature range, short response times even at low temperatures and low threshold voltages. LC media are required which facilitate the following advantages in LC cells:For LC cells, LC media are desired which enable greater multiplexability, lower threshold voltages and broader nematic phase ranges, in particular at low temperatures. A further widening of the available parameter latitude (clearing point, smectic-nematic ...

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Номер записи: 70
23-08-2018 дата публикации

METHOD FOR OBTAINING A MATERIAL COMPRISING A LIQUID CRYSTAL MIX WITH A STABILIZED BLUE PHASE AND OPTICAL ARTICLE COMPRISING THIS MATERIAL

Номер: US20180237694A1
Автор: Archambeau Samuel, Cano Jean-Paul, GUAZA Sevastian
Принадлежит: Essilor International

Disclosed herein is a method for obtaining a material comprising mesogenic compounds forming a liquid crystal mix with a stabilized blue phase. The method includes the steps of a) inducing the liquid crystal mix, contained in a chemical composition, to form the blue phase, then b) illuminating the chemical composition with a light beam of visible wavelength in order to trigger the polymerization of monomers contained in the chemical composition, to obtain the material comprising the liquid crystal mix in the blue phase stabilized by the polymerized monomers. The chemical composition contains a mesogenic system and a chemical photo-initiator system adapted to trigger the polymerization of the monomers when illuminated by the light beam of visible wavelength, in which the mesogenic system includes the mesogenic compounds forming the liquid crystal mix, a chiral dopant adapted to induce the blue phase, and a monomer mix comprising the monomers adapted to polymerize. 1. A method for obtaining a material comprising mesogenic compounds forming a liquid crystal mix with a stabilized blue phase , the method comprising:a) inducing the liquid crystal mix, contained in a chemical composition, to form the blue phase; thenb) illuminating the chemical composition with a light beam of visible wavelength in order to trigger the polymerization of monomers contained in the chemical composition, to obtain the material comprising the liquid crystal mix in the blue phase stabilized by the polymerized monomers,wherein:the chemical composition comprises a mesogenic system and a chemical photo-initiator system; the mesogenic compounds forming the liquid crystal mix,', 'a chiral dopant adapted to induce the blue phase, and', 'a monomer mix comprising the monomers adapted to polymerize; and, 'the mesogenic system comprises'}the chemical photo-initiator system is adapted to trigger the polymerization of the monomers when illuminated by the light beam of visible wavelength.221. The method of ...

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Номер записи: 71
23-08-2018 дата публикации

MATERIAL COMBINATION

Номер: US20180237696A1
Автор: Baker Philip, Brown Carl, PAARI Owain Llyr, SAGE Ian Charles, TUFFIN Rachel
Принадлежит: Merck Patent GmBH

The invention relates to a material combination comprising a first fluid comprising a liquid crystal material, and an electrically insulating second fluid substantially not miscible with the first fluid, and to an optical device using the same. 1. Material combination containinga first fluid, comprising a liquid crystal material, andan electrically insulating second fluid substantially not miscible with the first fluid,which are in contact with each other along a phase boundary.2. Material combination according to characterised in that the second fluid comprises one or more substantially fluorinated or perfluorinated organic compounds.3. Material combination according to wherein the second fluid consists of one or more perfluorinated organic compounds.6. Material combination according to with the first fluid being in the isotropic state at room temperature.7. Material combination according to characterised in that the first fluid has a dielectric constant of 100 to 1000 or above claim 1 , measured at 20° C. and 1 kHz.8. A Optical component comprising a fluid enclosure comprisinga first substrate,a second substrate placed opposite the first substrate, and{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'a material combination according to disposed between the first substrate and the second substrate.'}9. Optical component according to where the optical component utilises interdigitated electrodes placed on the first substrate.10. Optical component according to where the electrodes are covered by a polymer layer.11. Optical component according to where the polymer layer is a liquid crystal orientation layer.12. Method of production of an optical component comprising a fluid enclosure comprisinga first substrate,a second substrate placed opposite the first substrate, and{'claim-ref': [{'@idref': 'CLM-00001', 'claim 1'}, {'@idref': 'CLM-00001', 'claim 1'}, {'@idref': 'CLM-00001', 'claim 1'}], 'a material combination according to disposed between the first substrate and ...

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Номер записи: 72
10-09-2015 дата публикации

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

Номер: US20150252262A1
Автор: Kawamura Joji
Принадлежит:

The inventor of the present invention has investigated various liquid crystal compounds and various chemical substances and found that the object can be achieved by using a combination of particular liquid crystal compounds, thereby making the present invention. 15-. (canceled)7. The liquid crystal composition according to claim 6 , further comprising one or more compounds represented by general formula (L):{'br': None, 'sup': L1', 'L1', 'L1', 'L2', 'L2', 'L3', 'L2, 'sub': 'OL', 'R—B-L-B\ue8a0L-B\ue8a0R\u2003\u2003(L)'}{'sup': L1', 'L2, 'sub': 2', '2, 'claim-text': OL represents 0, 1, 2, or 3,', {'sup': L1', 'L2', 'L3, 'B, B, and Beach independently represent a group selected from the group consisting of'}], '(In the formula, Rand Reach independently represent an alkyl group having 1 to 8 carbon atoms where one —CH— or two or more non-adjacent —CH— in the alkyl group may each independently be substituted with —CH═CH—, —C≡C—, —O—, —CO—, —COO—, or —OCO—,'}{'sub': 2', '2, '(a) a 1,4-cyclohexylene group (one —CH— or two or more non-adjacent —CH— in this group may each be substituted with —O—) and'}(b) a 1,4-phenylene group (one —CH═ or two or more non-adjacent —CH═ in this group may each be substituted with —N═) [{'sup': L1', 'L2, 'sub': 2', '2', '2', '4', '2', '2', '2', '2, 'Land Leach independently represent a single bond, —CHCH—, —(CH)—, —OCH—, —CHO—, —COO—, —OCO—, —OCF—, —CFO—, —CH═N—N═CH—, —CH═CH—, —CF═CF—, or —C≡C—, and'}, {'sup': L2', 'L3, 'when OL represents 2 or 3 and a plurality of Lare present, they may be the same or different; when OL represents 2 or 3 and a plurality of Bare present, they may be the same or different; however, the compounds represented by formula (2.5) and general formula (IV) and compounds represented by formula (11.1) and formula (11.2) are excluded.)'}], 'where the group (a) and the group (b) may each independently be substituted with a cyano group, a fluorine atom, or a chlorine atom,'}9. An active matrix-driving liquid crystal display ...

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Номер записи: 73
30-08-2018 дата публикации

DIRECT MAPPING OF LOCAL DIRECTOR FIELD OF NEMATIC LIQUID CRYSTALS AT THE NANOSCALE

Номер: US20180244995A1
Автор: KAMIEN Randall D., Serra Francesca, Stebe Kathleen J., Xia Yu, Yang Shu
Принадлежит:

The present disclosure is directed to mesogenic compounds having a structure of Formula (I), (II) or (III): where A, B, X1, L, TG, m, and n are defined herein, and compositions containing these compounds, as well as articles made from such polymerized and prepolymerized compositions and methods of estimating the elastic constants and anchoring constants of a liquid crystal materials and mapping topological defect structures in liquid crystals using these compounds. 2. The mesogenic compound of claim 1 , wherein A is phenyl or pyridinyl.3. The mesogenic compound of claim 1 , wherein:(a) B is independently phenyl or pyridinyl at each occurrence; or(b) A is phenyl and B is pyridinyl at each occurrence or A is pyridinyl and B is phenyl at each occurrence; or(c) A and B are phenyl at every occurrence.45-. (canceled)6. The mesogenic compound of claim 2 , where each L is positioned para to one another on each A or B ring.8. The mesogenic compound of claim 1 , wherein one or both of A and B are independently naphthyl claim 1 , quinolinyl claim 1 , or isoquinolinyl.10. The mesogenic compound of claim 1 , wherein:{'sup': 1', '1', '1', '1, 'sub': 2', '2', '2, 'L is independently at each occurrence —C(O)—, —C(C═NOH)—, —C(O)O—, —OC(O)—, —C(O)N(R), —N(R)—C(O)—, —OC(O)O—, —OC(O)N(R)—, —N(R)C(O)O—, —S(O)—, —SO—, —CH(OH)—, or —C(OH)—; and'}{'sup': '1', 'sub': '1-3', 'Ris independently at each occurrence H or Calkyl.'}11. The mesogenic compound of claim 1 , wherein L is independently at each occurrence —C(O)O— claim 1 , —OC(O)— claim 1 , —C(O)NH— claim 1 , —NH—C(O)— claim 1 , —C(O)N(CH)— claim 1 , or —N(CH)—C(O)—.12. The mesogenic compound of claim 1 , wherein L is the same —C(O)O— or —OC(O)— at each occurrence.13. The mesogenic compound of claim 1 , wherein n is 1 and Xis nitro.14. The mesogenic compound of claim 1 , wherein TG independently comprises an epoxy claim 1 , alkene claim 1 , or glycidyl.15. The mesogenic compound of claim 1 , wherein TG is the same epoxy or glycidyl in ...

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Номер записи: 74
30-08-2018 дата публикации

Liquid crystal composition and liquid crystal display device

Номер: US20180244996A1
Автор: Atsushi Sakamoto, Masayuki Saito
Принадлежит: JNC Corp, JNC Petrochemical Corp

Shown are a liquid crystal composition satisfying at least one of characteristics such as high maximum temperature, low minimum temperature, low viscosity, suitable optical anisotropy and large negative dielectric anisotropy, or having a suitable balance regarding at least two of the characteristics, and an AM device including the composition. The liquid crystal composition contains a specific compound having large negative dielectric anisotropy as a first component, and a specific compound having low viscosity as a second component, and may contain a specific compound having negative dielectric anisotropy as a third component, a specific compound having high maximum temperature or low viscosity as a fourth component, or a specific compound having a polymerizable group as an additive.

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Номер записи: 75
17-09-2015 дата публикации

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

Номер: US20150259601A1
Автор: Kawakami Shotaro, SUDO Go
Принадлежит: DIC CORPORATION

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. 3. The polymerizable compound-containing liquid crystal composition according to claim 1 , wherein the general formula (I) is the general formula (I-1).4. The polymerizable compound-containing liquid crystal composition according to claim 1 , wherein in the general formula (I) claim 1 , Rand Rare each independently formula (R-1) or (R-2).5. The polymerizable compound-containing liquid crystal composition according to claim 1 , wherein in the general formula (I) claim 1 , Rand Rare each independently formula (R-2).9. The polymerizable compound-containing liquid crystal composition according to claim 1 , wherein the content of the compound represented by the general formula (I) is 0.01% by mass to 2.0% by mass.10. The polymerizable compound-containing liquid crystal composition according to claim 1 , wherein the content of the compound represented by the general formula (II) is 5% by mass to 35% by mass.11. The polymerizable compound-containing liquid crystal composition according to claim 1 , wherein the content of the compound represented by the general formula (III) is 5% by mass to 35% by mass.12. The polymerizable compound-containing liquid crystal composition according to claim 1 , ...

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Номер записи: 76
15-09-2016 дата публикации

LIQUID CRYSTALLINE MEDIUM

Номер: US20160264865A1
Автор: Bauer Monika, ENGEL Martin, Hirschmann Harald, WINDHORST Martina
Принадлежит: Merck Patent GmBH

The invention relates to a liquid-crystalline medium which comprises at least one compound of the formula IA, IB, IC, ID and/or IE, 3. The liquid-crystalline medium according to claim 1 , wherein the proportion of the compound(s) of the formulae IA to IE in the mixture as a whole is 1-50% by weight claim 1 , based on the mixture.14. The liquid-crystalline medium according to claim 1 , comprising at least one polymerizable compound.15. The liquid-crystalline medium according to claim 1 , comprising one or more conventional additives for liquid crystalline media.16. The liquid-crystalline medium according to claim 15 , wherein the additive is a free-radical scavenger claim 15 , antioxidant and/or UV stabilizer.17. A process for the preparation of a liquid-crystalline medium according to claim 1 , comprising mixing at least one compound of formulae IA to IE with at least one further mesogenic compound claim 1 , and optionally adding one or more conventional additives for liquid crystalline media and optionally adding at least one polymerizable compound.18. An electro-optical display having active-matrix addressing claim 1 , comprising as a dielectric claim 1 , a liquid-crystalline medium according to .19. The electro-optical display according to claim 18 , that is a VA claim 18 , PSA claim 18 , PA-VA claim 18 , PS-VA claim 18 , SA-VA claim 18 , SS-VA claim 18 , PALC claim 18 , IPS claim 18 , PS-IPS claim 18 , FFS claim 18 , UB-FFS or PS-FFS display.20. The electro-optical display according to claim 19 , that is an IPS claim 19 , PS-IPS claim 19 , FFS claim 19 , UB-FFS or PS-FFS display which has a planar alignment layer. The invention relates to a liquid-crystalline medium which comprises at least one compound of the formula IA, IB, IC, ID and/or IE,in whichMedia of this type can be used, in particular, for electro-optical displays having active-matrix addressing based on the ECB effect and for IPS (in-plane switching) displays or FFS (fringe field switching) displays. ...

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Номер записи: 77
14-09-2017 дата публикации

Liquid crystal composition and liquid crystal display element using the same

Номер: US20170260451A1
Автор: Joji Kawamura
Принадлежит: DIC Corp

The liquid crystal composition of the present invention can be used in a liquid crystal display element of an IPS type or a TN type in which display defects such as burn-in and dropping marks in high speed response are unlikely to be generated. Since the liquid crystal composition contains a component which is a dielectrically positive component including a dielectrically positive compound and a dielectrically neutral component of which dielectric anisotropy is greater than −2 and less than +2, the liquid crystal composition has excellent characteristics that the liquid crystal composition has a liquid crystal phase in a wide temperature range, low viscosity, excellent solubility at a low temperature, high specific resistance and a high voltage holding ratio, and is stable with respect to heat and light.

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Номер записи: 78
22-09-2016 дата публикации

POLYMERIZABLE LIQUID CRYSTAL COMPOSITION, AND ANISOTROPIC OPTICAL BODY, RETARDATION FILM, ANTIREFLECTIVE FILM, AND LIQUID CRYSTAL, DISPLAY ELEMENT FABRICATED USING COMPOSITION

Номер: US20160272888A1
Автор: Endou Koichi, Hatsusaka Kazuaki, Kuwana Yasuhiro, Nakata Hidetoshi, Yamamoto Mika
Принадлежит: DIC CORPORATION (TOKYO)

An object of the present invention is to provide a polymerizable liquid crystal composition with which two characteristics of smoothness of a surface of an anisotropic optical body and orientation properties of liquid crystals can be simultaneously improved, when preparing an anisotropic optical body to be obtained by photopolymerization of the polymerizable liquid crystal composition. Specifically, an object of the present invention is to provide a polymerizable liquid crystal composition containing specific polymerizable compounds and a fluorine-based surfactant. In addition, an anisotropic optical body, a retardation film, an antireflective film, and a liquid crystal display element prepared using the polymerizable liquid crystal composition of the present invention are also provided. 2. The polymerizable liquid crystal composition according to claim 1 ,{'sub': 'S', 'wherein the fluorine-based surfactant contains a group represented by —(XO)— (where X is an alkylene group having 1 to 10 carbon atoms and s is an integer equal to or greater than 1).'}7. An anisotropic optical body prepared by using the polymerizable liquid crystal composition according to .8. A retardation film prepared by using the polymerizable liquid crystal composition according to .9. An antireflective film prepared by using the polymerizable liquid crystal composition according to .10. A liquid crystal display element prepared by using the polymerizable liquid crystal composition according to . The present invention relates to a polymerizable liquid crystal composition which is useful as a constituent member of an anisotropic optical body used for optical compensation of a liquid crystal device, a display, an optical component, a colorant, a security marking, a member for laser emission, and a liquid crystal display, and an anisotropic optical body, a retardation film, an antireflective film, and a liquid crystal display element fabricated using composition.A polymerizable liquid crystal ...

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Номер записи: 79
11-12-2014 дата публикации

NEMATIC LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL DISPLAY ELEMENT USING SAME

Номер: US20140361220A1
Автор: Kawamura Joji
Принадлежит: DIC CORPORATION

The liquid crystal composition of the present invention is used for liquid crystal display devices of an IPS mode, a TN mode, and the like that have a high response speed and do not easily cause display defectiveness such as ghosting or dropping marks. The liquid crystal composition contains a component which is a dielectrically positive component containing a dielectrically positive compound and a dielectrically neural component which exhibits dielectric anisotropy greater than −2 and smaller than +2. The liquid crystal composition has excellent properties in which the composition forms a liquid crystal phase in a wide temperature range, has a low viscosity, dissolves excellently at a low temperature, has a high degree of specific resistance and voltage holding ratio, and is stable with respect to heat or light. 116.-. (canceled)32. A liquid crystal display device for driving an active matrix that uses the liquid crystal composition according to . The present invention relates to a nematic liquid crystal composition, which is useful as a liquid crystal display material and has dielectric anisotropy (Δ∈) of a positive value, and a liquid crystal display device using the composition.Liquid crystal display devices are being used for timepieces, electronic calculators, various measurement instruments, automobile panels, word processors, electronic diaries, printers, computers, televisions, timepieces, advertising display boards, and the like. The liquid crystal display modes typically include a Twisted Nematic (TN) mode, a Super-Twisted Nematic (STN) mode, a vertical alignment mode using a Thin Transistor Film (TFT), In-Plane Switching (IPN) mode, and the like. A Liquid crystal composition used for these liquid crystal display devices is required to be stable with respect to external stimulation such as moisture, air, heat, and light, forms a liquid crystal phase in the widest possible temperature range with room temperature as a center of the range, and has a low ...

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Номер записи: 80
13-08-2020 дата публикации

PREPARATION METHOD FOR A TEMPERATURE-RESPONSIVE LIGHT REFLECTING COATING AND THE LIGHT REFLECTING COATING

Номер: US20200257170A1
Автор: DE HAAN Laurens, Zhang Pei, Zhao Wei, Zhou Guofu
Принадлежит:

A preparation method for a temperature-responsive light reflecting coating is provided comprising: forming a main chain cholesteric phase liquid crystal polymer by a polymerization reaction between an acrylate liquid crystal and an amine, and coating the main chain cholesteric phase liquid crystal polymer on a substrate to form a light reflecting coating, wherein the acrylate comprises a chiral acrylate, and the reflection wavelength of the reflecting coating is determined by the content of the chiral acrylate liquid crystal and the polymerization degree of the main chain cholesteric phase liquid crystal polymer formed. The method may further comprise cross-linking the main chain cholesteric phase liquid crystal polymer to obtain a polymer network so as to form a solid coating. The present disclosure further provides a temperature-responsive light reflecting coating. The preparation of the main chain cholesteric phase liquid crystal polymer of the present disclosure requires only a simple thermally-driven polymerization reaction. 1. A preparation method for a temperature-responsive light reflecting coating , wherein the method comprises forming a main chain cholesteric phase liquid crystal polymer by a polymerization reaction between one or a mixture of diacrylate liquid crystals and an amine , and coating the main chain cholesteric phase liquid crystal polymer on a substrate to form a light reflecting coating , wherein the diacrylate liquid crystal mixture comprises at least one chiral diacrylate liquid crystal , and the reflection wavelength of the reflecting coating is determined by the content of chiral diacrylate liquid crystal and the polymerization degree of the main chain cholesteric phase liquid crystal polymer formed.2. The preparation method for a temperature-responsive light reflecting coating according to claim 1 , wherein the polymerization reaction between the diacrylate liquid crystal and the amine is carried out as follows:the amine reacts with the ...

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Номер записи: 81
08-10-2015 дата публикации

LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL DISPLAY

Номер: US20150284633A1
Автор: KIM Min-Hee, KIM Min-jae, OH Keun Chan, PARK Joon-Hyung
Принадлежит:

A liquid crystal composition includes a first compound represented by following Chemical Formula 1, a second compound represented by following Chemical Formula 2, and at least one of a third compound represented by following Chemical Formula 3 and a fourth compound represented by following Chemical Formula 4. 2. The liquid crystal composition of claim 1 , wherein the liquid crystal composition comprises the first compound claim 1 , the second compound claim 1 , and the third compound claim 1 , and an amount of the third compound is more than about 0.1 ppm to less than about 5000 ppm.3. The liquid crystal composition of claim 1 , wherein the liquid crystal composition comprises the first compound claim 1 , the second compound claim 1 , and the fourth compound claim 1 , and an amount of the fourth compound is more than about 0.1 ppm to less than about 5000 ppm.7. The liquid crystal composition of claim 6 , wherein the liquid crystal composition comprises the first compound claim 6 , the second compound claim 6 , the third compound claim 6 , the fifth compound claim 6 , the sixth compound claim 6 , and the seventh compound claim 6 , and an amount of the third compound is more than about 0.1 ppm to less than about 5000 ppm.8. The liquid crystal composition of claim 6 , wherein the liquid crystal composition comprises the first compound claim 6 , the second compound claim 6 , the fourth compound claim 6 , the fifth compound claim 6 , the sixth compound claim 6 , and the seventh compound claim 6 , and an amount of the fourth compound is more than about 0.1 ppm to less than about 5000 ppm.9. The liquid crystal composition of claim 1 , wherein the liquid crystal composition has a refractive anisotropy of about 0.080 to about 0.130.10. The liquid crystal composition of claim 1 , wherein the liquid crystal composition has dielectric anisotropy of about −4.0 to about −2.5.12. The liquid crystal display of claim 11 , wherein the liquid crystal composition comprises the first ...

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Номер записи: 82
20-08-2020 дата публикации

POLYMERIZABLE POLAR COMPOUND, LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL DISPLAY DEVICE

Номер: US20200263089A1
Автор: Kondo Fumitaka, SAGO Hiroki, YANO Tomohiro
Принадлежит:

A polar compound having high chemical stability, high capability of aligning liquid crystal molecules, high solubility in a liquid crystal composition, and a large voltage holding ratio when the compound is used in a liquid crystal display device; and a composition containing the compound. The compound is represented by formula (1). In formula (1), for example, Pis a group represented by any one of formulas (1b) to (1i), Pis a group represented by formula (1d), Spand Spare a single bond, Z, Z, Z, Zand Zare —COO—, and ring A, ring A, ring Aand ring Aare 1,4-phenylene: 5. The compound according to claim 4 , represented by any one of formula (1-1-1) claim 4 , (1-2-1) or (1-3-1) claim 4 , wherein any one of Z claim 4 , Zor Zis —COO— or —OCO—.6. The compound according to claim 4 , represented by any one of formula (1-1-1) claim 4 , (1-2-1) or (1-3-1) claim 4 , wherein any one of Z claim 4 , Zor Zis —CH═CHCOO— claim 4 , —OCOCH═CH— claim 4 , —CH═CH— claim 4 , —CH═CHCO— or —COCH═CH—.9. A liquid crystal composition claim 1 , containing at least one compound according to .16. The liquid crystal composition according to claim 9 , further containing at least one of a polymerizable compound other than formulas (1) and (16) claim 9 , a polymerization initiator claim 9 , a polymerization inhibitor claim 9 , an optically active compound claim 9 , an antioxidant claim 9 , an ultraviolet light absorber claim 9 , a light stabilizer claim 9 , a heat stabilizer and an antifoaming agent.17. A liquid crystal display device claim 9 , including at least one liquid crystal composition according to . The invention relates to a polymerizable polar compound, a liquid crystal composition and a liquid crystal display device. More specifically, the invention relates to a polymerizable polar compound having an itaconate group, a liquid crystal composition that contains the compound and has positive or negative dielectric anisotropy, and a liquid crystal display device including the composition.In a ...

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Номер записи: 83
15-10-2015 дата публикации

FLUOROBIPHENYL-CONTAINING COMPOSITION

Номер: US20150291881A1
Автор: Kawamura Joji, Negishi Makoto, Niwa Masahiro
Принадлежит: DIC CORPORATION

There is provided a composition containing a compound represented by General Formula (i) and a compound represented by General Formula (ii) 18-. (canceled)10. The composition used in a liquid crystal display device according to claim 9 , wherein in the compound represented by General Formula (ii) claim 9 , Xis a fluorine atom; and X claim 9 , X claim 9 , and Xare hydrogen atoms.15. The composition used in a liquid crystal display device according to claim 9 , wherein at least one of Xto Xis a fluorine atom.18. A liquid crystal display device comprising the composition used in a liquid crystal display according to .19. An IPS device comprising the composition used in a liquid crystal display device according to .20. An FFS device comprising the composition used in a liquid crystal display device according to . The present invention particularly relates to a nematic liquid crystal composition which is useful as a liquid crystal display material and which has a positive dielectric anisotropy (ΔΣ).Liquid crystal display devices have been applied to, for example, watches, calculators, a variety of measuring equipment, panels used in automobiles, word processors, electronic notebooks, printers, computers, television sets, clocks, and advertising boards. Representative examples of types of liquid crystal display devices include a TN (twisted nematic) type, an STN (super twisted nematic) type, and vertical alignment and IPS (in-plane switching) types involving use of a TFT (thin film transistor). Liquid crystal compositions used in such liquid crystal display devices need to satisfy the following requirements: being stable to external stimuli such as moisture, air, heat, and light; having a liquid crystal phase in a wide temperature range mainly including room temperature as much as possible; having a low viscosity; and enabling a low driving voltage. In addition, liquid crystal compositions are composed of several to tens of compounds in order to adjust, for example, the ...

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Номер записи: 84
25-12-2014 дата публикации

COMPOUND, LIQUID CRYSTAL COMPOSITION, POLYMER MATERIAL AND FILM

Номер: US20140374657A1
Автор: KATOH Shunya, MATSUYAMA Hiroshi
Принадлежит: FUJIFILM Corporation

A liquid crystal composition comprising a compound represented by the following formula has sufficient solubility and a wide usable concentration range, and exhibits excellent haze-lowering performance. Brepresents an n-valent chain linking group, Land Lrepresent a single bond, —O—, —S—, —CO—, —COO—, —OCO—, etc, Arepresents a divalent aromatic hydrocarbon group or a divalent heterocyclic group, Arepresents an aromatic hydrocarbon group, Sprepresents a single bond, or an alkylene group, Hbrepresents a fluorine-substituted alkyl group, n represents 2 to 6, m represents 0 to 2, and l represents 2 or 3.

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Номер записи: 85
05-09-2019 дата публикации

CURVED LIQUID CRYSTAL DISPLAY DEVICE

Номер: US20190271886A1
Автор: HONG Jiphyo, LIM Ho
Принадлежит:

A curved liquid crystal display device, includes: a first bent substrate; a second bent substrate disposed facing the first bent substrate; a liquid crystal layer disposed between the first bent substrate and the second bent substrate, the liquid crystal layer including first liquid crystal molecules disposed adjacent to the first bent substrate and second liquid crystal molecules disposed adjacent to the second bent substrate; a first alignment inducing layer disposed between the first bent substrate and the liquid crystal layer; and a second alignment inducing layer disposed between the second bent substrate and the liquid crystal layer, wherein one of the first alignment inducing layer and the second alignment inducing layer includes a polymerized reactive mesogen, and the remaining alignment inducing layer includes polyimide. 1. A curved liquid crystal display device , comprising:a first bent substrate;a second bent substrate disposed facing the first bent substrate;a liquid crystal layer disposed between the first bent substrate and the second bent substrate, the liquid crystal layer comprising first liquid crystal molecules disposed adjacent to the first bent substrate and second liquid crystal molecules disposed adjacent to the second bent substrate;a first alignment inducing layer disposed between the first bent substrate and the liquid crystal layer; anda second alignment inducing layer disposed between the second bent substrate and the liquid crystal layer,wherein one of the first alignment inducing layer and the second alignment inducing layer comprises a polymerized reactive mesogen, and the remaining alignment inducing layer comprises polyimide.2. The curved liquid crystal display device of claim 1 , wherein the first bent substrate has a first radius of curvature claim 1 , and the second bent substrate has a second radius of curvature claim 1 , andthe first radius of curvature is greater than or equal to the second radius of curvature.3. The curved ...

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Номер записи: 86
29-10-2015 дата публикации

Liquid crystal composition and liquid crystal display element using same

Номер: US20150307780A1
Автор: Joji Kawamura, Makoto Negishi, Masahiro Niwa, Yoshinori Iwashita
Принадлежит: DIC Corp

This liquid crystal composition includes at least one compound represented by general formula (i), and at least one compound represented by general formula (ii) (in the formulae: R i1 , R i2 , and R ii1 each independently represent a C1-8 alkyl group; one or at least two non-adjacent-CH 2 — groups in these alkyl groups may each independently be substituted with —CH═CH—, —C≡C—, —O—, —CO—, —COO—, or —OCO—; the hydrogen in these alkyl groups may be substituted with fluorine or chlorine; X i1 , X i2 , X i3 , X i4 , X i11 , and X ii2 each independently represent hydrogen or fluorine; and A ii1 , A ii2 , and A ii3 each independently represent a trans-1,4-cyclohexylene group, or a 1,4-phenylene group which may have the hydrogen therein substituted with fluorine or chlorine).

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Номер записи: 87
29-10-2015 дата публикации

LIQUID CRYSTAL DISPLAY DEVICE

Номер: US20150309361A1
Автор: Funakura Seiji, Kaneoya Masakazu, Oshiumi Isao, Shimada Katsunori, Takeuchi Kiyofumi
Принадлежит: DIC CORPORATION

There is provided a liquid crystal display apparatus that may limit a reduction in the voltage holding ratio (VHR) of a liquid crystal layer and limit an increase in the ion density (ID) in the liquid crystal layer and address issues of faulty display such as white missing pixels, alignment inconsistencies, and burn-in. Having a feature of limiting a reduction in the VHR of a liquid crystal layer and limiting an increase in an ion density (ID) in the liquid crystal layer and thereby reducing occurrence of faulty display such as burn-in, the liquid crystal display apparatus according to the present invention may be particularly suitably used as a VA-mode or PSVA-mode liquid crystal display apparatus for active-matrix driving and may be used as a liquid crystal display apparatus included in a liquid crystal TV, a monitor, a mobile phone, a smart phone, or the like. 115-. (canceled)17. The liquid crystal display apparatus according to claim 16 , wherein the RGB three-color pixel portions include claim 16 , as a coloring material claim 16 , a pigment having a water-soluble content of 0% by mass or more and 1.0% by mass or less and a specific electrical conductivity of 10 μS/cm or more and 100 μS/cm or less.18. The liquid crystal display apparatus according to claim 16 , wherein the RGB three-color pixel portions include an R pixel portion including claim 16 , as a coloring material claim 16 , a diketopyrrolopyrrole-based red pigment; a G pixel portion including claim 16 , as a coloring material claim 16 , a halogenated metal phthalocyanine pigment; and a B pixel portion including claim 16 , as a coloring material claim 16 , an ∈-type phthalocyanine pigment and/or a triarylmethane pigment.19. The liquid crystal display apparatus according to claim 18 ,wherein the halogenated metal phthalocyanine pigment included in the G pixel portion includes, as a central metal, a metal selected from the group consisting of Al, Si, Sc, Ti, V, Mg, Fe, Co, Ni, Zn, Cu, Ga, Ge, Y, Zr, Nb, ...

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Номер записи: 88
05-11-2015 дата публикации

NEMATIC LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL DISPLAY DEVICE

Номер: US20150315468A1
Автор: Kawakami Shotaro, SUDO Go
Принадлежит: DIC CORPORATION

There is provided a liquid crystal composition having a sufficiently low viscosity (η), a sufficiently low rotational viscosity (γ1), a high elastic constant (K), and negative Δε with a high absolute value without decreasing the refractive index anisotropy (Δn) and the nematic phase-isotropic liquid phase transition temperature (T); and a liquid crystal display device with a VA mode or the like that uses the liquid crystal composition and has high display quality and high response speed. The liquid crystal display device that uses the liquid crystal composition of the present invention has a distinguished feature of high-speed response and is particularly useful as an active matrix driving liquid crystal display device. The liquid crystal display device is applicable to a VA mode, PSVA mode, PSA mode, IPS mode, or ECB mode liquid crystal display device. 117-. (canceled)20. The liquid crystal composition according to claim 18 , wherein a content of the first component is 3 mass % to 70 mass %.21. The liquid crystal composition according to claim 18 , wherein a content of the second component is 3 mass % to 70 mass %.25. The liquid crystal composition according to claim 24 , wherein the compounds represented by the general formula (I-1) claim 24 , the general formula (II-A) claim 24 , the general formula (III-A) claim 24 , and the general formula (V) are contained at the same time.26. The liquid crystal composition according to claim 24 , wherein the compounds represented by the general formula (I-1) claim 24 , the general formula (II-B) claim 24 , the general formula (III-A) claim 24 , and the general formula (V) are contained at the same time.27. The liquid crystal composition according to claim 24 , wherein the compounds represented by the general formula (I-1) claim 24 , the general formula (II-A) claim 24 , the general formula (II-B) claim 24 , the general formula (III-A) claim 24 , and the general formula (V) are contained at the same time.28. The liquid crystal ...

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Номер записи: 89
05-11-2015 дата публикации

Nematic liquid crystal composition and liquid crystal display element using same

Номер: US20150315469A1
Автор: Go Sudo, Shotaro Kawakami
Принадлежит: DIC Corp

There is provided a liquid crystal composition having a dielectric anisotropy (Δ∈) large in absolute value, a sufficiently low viscosity (η), a sufficiently low rotational viscosity (γ 1 ), and a high elastic constant (K 33 ) without decreased refractive index anisotropy (Δn) or nematic phase-isotropic liquid phase transition temperature (T ni ). A liquid crystal display device, such as a VA mode liquid crystal display device, including the liquid crystal composition has high response speed and good display quality with few or no display defects. The liquid crystal display device including the liquid crystal composition is useful as an active-matrix liquid crystal display device and is applicable as a liquid crystal display device such as a VA mode or PSVA mode liquid crystal display device.

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Номер записи: 90
05-11-2015 дата публикации

LIQUID CRYSTAL DISPLAY DEVICE

Номер: US20150316815A1
Автор: Funakura Seiji, Kawamura Jouji, Kuriyama Takeshi, Shimada Katsunori
Принадлежит: DIC CORPORATION

There is provided a liquid crystal display device capable of preventing a decrease in voltage holding ratio (VHR) of a liquid crystal layer and an increase in ion density (ID) and resolving the problem of display defects such as white spots, alignment unevenness, image sticking, and the like. The liquid crystal display device prevents a decrease in voltage holding ratio (VHR) of a liquid crystal layer and an increase in on density (ID) and suppresses the occurrence of display defects such as image sticking, and the like. The liquid crystal display device is useful for an IPS-mode or FES-mode liquid crystal display device for active matrix driving. The application of the device can include liquid crystal TVs, monitors, cellular phones, smart phones, and the like. 2. The liquid crystal display device according to claim 1 , wherein the RGB three-color pixel portions include claim 1 , as colorants claim 1 , C. I. Solvent Red 124 in the R pixel portion claim 1 , a mixture of C. I. Solvent Blue 67 and C. I. Solvent Yellow 162 in the G pixel portion claim 1 , and C. I. Solvent Blue 7 in the B pixel portion.3. The liquid crystal display device according claim 1 , to claim 1 , wherein the RGB three-color pixel portions include claim 1 , as colorants claim 1 , C. I. Pigment Red 254 in the R pixel portion claim 1 , C. I. Pigment Green 7 and/or 36 in the G pixel portion claim 1 , and C. I. Pigment Blue 15:6 in the B pixel portion.4. The liquid crystal display device according to claim 1 , wherein the R pixel portion further contains at least one organic dye/pigment selected from the group consisting of C. I. Pigment Red 177 claim 1 , 242 claim 1 , 166 claim 1 , 167 claim 1 , and 179 claim 1 , C. I. Pigment Orange 38 and 71 claim 1 , C. I. Pigment Yellow 150 claim 1 , 215 claim 1 , 185 claim 1 , 138 claim 1 , and 139 claim 1 , C. I. Solvent Red 89 claim 1 , C. I. Solvent Orange 56 claim 1 , and C. I. Solvent Yellow 21 claim 1 , 82 claim 1 , 83:1 claim 1 , 33 claim 1 , and 162.5. ...

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Номер записи: 91
03-11-2016 дата публикации

Liquid crystal composition, liquid crystal display including the same and method of manufacturing thereof

Номер: US20160319193A1
Автор: Ji Hong BAE, Sung-Hwan Hong, Young Mi Cho
Принадлежит: Samsung Display Co Ltd

A liquid crystal composition includes at least one liquid crystal molecule represented by Chemical Formulas 1-1 to 1-6, and at least one liquid crystal molecule represented by Chemical Formulas 2-1 to 2-6.

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Номер записи: 92
19-11-2015 дата публикации

LIQUID CRYSTALLINE MEDIUM AND LIQUID CRYSTAL DISPLAY

Номер: US20150329782A1
Автор: ADLEM Kevin, Jin Heui-Seok, LEE Sang-kyu, LEE Seung-Eun, Park Won-Hoon, Parri Owain Llyr, Saxton Patricia, SKJONNEMAND Karl, Wilkes David
Принадлежит: Merck Patent GmBH

The instant invention relates to liquid crystalline media comprising

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Номер записи: 93
26-11-2015 дата публикации

COMPOSITION

Номер: US20150337203A1
Автор: HIDA Noriyuki, OKAWA Haruki
Принадлежит: Sumitomo Chemical Company, Limited

Provided is a composition that can form a polarizing film with high dichroic ratio, which contains a compound having a function as a dichroic dye and having a local maximum absorption in a wavelength range of 350 to 550 nm. The composition contains a compound represented by the formula (1) and a polymerizable liquid crystal compound: 3. The composition according to or , wherein the polymerizable liquid crystal compound exhibits a smectic liquid crystal phase.4. The composition according to claim 1 , wherein the compound further comprises a polymerization initiator.5. A polarizing film formed from the composition according to .6. The polarizing film according to claim 1 , wherein a local maximum absorption wavelength (λmax1) of the polarizing film according to is longer than a local maximum absorption wavelength (λmax2) of the compound represented by the formula (1) contained in the polarizing film.7. The polarizing film according to claim 6 , wherein a difference between λmax 1 and λmax 2 is 15 nm or longer.8. The polarizing film according to claim 5 , wherein the polarizing film exhibits a Bragg peak in x-diffraction measurement.9. A liquid crystal display device comprising the polarizing film according to .10. A liquid crystal cell comprising a substrate claim 5 , a liquid crystal layer claim 5 , and the polarizing film according to .11. The liquid crystal cell according to claim 10 , wherein the polarizing film is disposed between the substrate and the liquid crystal layer.12. The liquid crystal cell according to claim 11 , further comprising a color filter disposed between the substrate and the liquid crystal layer.13. A circularly polarizing plate comprising the polarizing film according to and a ¼ wavelength plate.14. An organic EL display device comprising the circularly polarizing plate according to and an organic EL element.18. A polarizing film comprising the compound according to .19. A liquid crystal display device comprising the polarizing film ...

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Номер записи: 94
16-11-2017 дата публикации

Liquid crystal display device and method for manufacturing same

Номер: US20170327743A1
Автор: Fumitaka Kondo, Keisuke Izawa, Yukio Hirano, Yuko Katano
Принадлежит: JNC Corp, JNC Petrochemical Corp

The present invention relates to a liquid crystal display element including a pair of a substrate arranged opposite to each other, an electrode group disposed on one side or both sides of the pair of substrates facing each other, a plurality of active elements connected to the electrode group, a liquid crystal alignment film disposed on each facing side of the pair of substrates, and a liquid crystal layer interposed between the pair of substrates, wherein the liquid crystal alignment film is manufactured by irradiating linearly polarized light to a film obtained from polyamic acid or a derivative thereof having a photoisomerization structure in the main chain or a film being subject to heat-baking so as to provide alignment-controlling capability, and the liquid crystal layer is a liquid crystal composition having negative (−) dielectric anisotropy. By the present invention, a liquid crystal display element having improved image sticking characteristics and good alignment stability is provided.

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Номер записи: 95
08-10-2020 дата публикации

LIGHT-ABSORBING ANISOTROPIC FILM, OPTICAL LAMINATE, AND IMAGE DISPLAY DEVICE

Номер: US20200318011A1
Автор: Nishimura Naoya, SHIBATA Naoya
Принадлежит: FUJIFILM Corporation

An object of the present invention is to provide a light-absorbing anisotropic film having an excellent degree of alignment of a dichroic azo coloring agent; an optical laminate including the same; and an image display device using the same. The light-absorbing anisotropic film according to an embodiment of the present invention is a light-absorbing anisotropic film which is formed of a liquid crystal composition containing a dichroic azo coloring agent compound, a liquid crystalline compound, and a compound represented by Formula (1) and has a front transmittance of 60% or less, and in which a content mass ratio of the dichroic azo coloring agent compound to the liquid crystalline compound is 5% to 35% by mass. 2. The light-absorbing anisotropic film according to claim 1 ,wherein the content mass ratio of the dichroic azo coloring agent compound to the liquid crystalline compound is 5% to 25% by mass.3. The light-absorbing anisotropic film according to claim 1 ,wherein the content mass ratio of the dichroic azo coloring agent compound to the liquid crystalline compound is more than 10% by mass and 25% by mass or less.4. The light-absorbing anisotropic film according to claim 1 ,wherein a content molar ratio of the compound represented by Formula (1) to the dichroic azo coloring agent compound is 1% to 50% by mole.5. The light-absorbing anisotropic film according to claim 1 ,wherein the content molar ratio of the compound represented by Formula (1) to the dichroic azo coloring agent compound is 3.5% to 10% by mole.6. The light-absorbing anisotropic film according to claim 1 ,wherein m in Formula (1) is 1.9. The light-absorbing anisotropic film according to claim 1 ,wherein the compound represented by Formula (1) is dibutylhydroxytoluene,10. An optical laminate comprising:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'the light-absorbing anisotropic film according to ; and'}a photo-alignment layer,wherein the light-absorbing anisotropic film is formed on the ...

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Номер записи: 96
23-11-2017 дата публикации

Liquid Crystal Compound, Liquid Crystal Composition and Liquid Crystal Display Device Using the Same

Номер: US20170336660A1
Автор: Kishikawa Keiki, LEE Sang Ho, MASUKAWA Tokifumi, SASADA Yasuyuki
Принадлежит:

Provided is a liquid crystal compound that can obtain a high-speed response and a sufficient contrast ratio in switching of a display device. A compound represented by formula (1) described below is utilized. 2. The compound according to claim 1 ,{'sub': 3', '3, 'wherein, in formula (1), ring A is naphthylene, phenantolylene or anthracenylene, and in the groups, at least one piece of hydrogen may be independently replaced by fluorine, —CHor —CF.'}4. The compound according to claim 3 , wherein claim 3 , in formulas (1-1) to (1-12) claim 3 , T claim 3 , T claim 3 , T claim 3 , T claim 3 , T claim 3 , T claim 3 , T claim 3 , T claim 3 , Tand Tare independently hydrogen claim 3 , fluorine or —CH.5. The compound according to claim 3 , wherein claim 3 , in formulas (1-1) to (1-12) claim 3 , X claim 3 , X claim 3 , Yand Yare fluorine.6. The compound according to claim 3 , represented by any one of formula (1-1) claim 3 , formula (1-2) claim 3 , formula (1-5) claim 3 , formula (1-6) claim 3 , formula (1-11) or formula (1-12).7. The compound according to claim 3 , represented by any one of formula (1-3) claim 3 , formula (1-4) claim 3 , formula (1-7) claim 3 , formula (1-8) claim 3 , formula (1-9) or formula (1-10).9. The compound according to claim 8 , wherein claim 8 , in formula (1-1-A) claim 8 , formula (1-2-A) claim 8 , formula (1-5-A) claim 8 , formula (1-6-A) claim 8 , formula (1-11-A) and formula (1-12-A) claim 8 , both of Xand Yare hydrogen.10. The compound according to claim 9 , represented by formula (1-1-A) and formula (1-2-A).11. A liquid crystal composition claim 1 , containing at least one compound according to .16. A liquid crystal display device claim 11 , including the liquid crystal composition according to . The invention relates to a liquid crystal compound. Moreover, the invention also relates to a liquid crystal composition using the liquid crystal compound and a liquid crystal display device using the same.A liquid crystal television using a liquid ...

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Номер записи: 97
10-12-2015 дата публикации

LIQUID CRYSTAL DISPLAY DEVICE

Номер: US20150355499A1
Автор: Funakura Seiji, Kawamura Jouji, Kimura Akira, Kuriyama Takeshi, Shimada Katsunori
Принадлежит: DIC CORPORATION

The present invention provides a liquid crystal display device in which a decrease in the voltage holding ratio (VHR) of a liquid crystal layer and an increase in the ion density (ID) are prevented and problems of display defects such as white streaks, alignment unevenness, and image sticking are overcome. The liquid crystal display device of the present invention in which a decrease in the voltage holding ratio (VHR) of a liquid crystal layer and an increase in the ion density (ID) are prevented and problems of display defects such as image sticking are overcome is particularly useful for active matrix driving liquid crystal display devices with an IPS mode and an FFS mode and can be applied to liquid crystal display devices of liquid crystal televisions, monitors, cellular phones, and smart phones. 112-. (canceled)14. The liquid crystal display device according to claim 13 , wherein the RGB three color pixel portions contain claim 13 , as coloring materials claim 13 , a diketopyrrolopyrrole pigment and/or an anionic red organic dye in an R pixel portion and an ∈-type copper phthalocyanine pigment and/or a cationic blue organic dye in a B pixel portion.15. The liquid crystal display device according to claim 13 , wherein the RGB three color pixel portions contain claim 13 , as coloring materials claim 13 , C.I. Solvent Red 124 in an R pixel portion and C.I. Solvent Blue 7 in a B pixel portion.16. The liquid crystal display device according to claim 13 , wherein the RGB three color pixel portions contain claim 13 , as coloring materials claim 13 , C.I. Pigment Red 254 in an R pixel portion and C.I. Pigment Blue 15:6 in a B pixel portion.17. The liquid crystal display device according to claim 13 , wherein the G pixel portion contains a halogenated zinc phthalocyanine pigment which includes Zn as the central metal and in which 8 to 16 halogen atoms per molecule of phthalocyanine bond to benzene rings of a phthalocyanine molecule.18. The liquid crystal display device ...

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Номер записи: 98
30-11-2017 дата публикации

Liquid crystal display device

Номер: US20170343840A1
Автор: Hiroyuki Omura, Jun Hashimoto, Junichi Baba, Kazuyoshi Hosaka, Noritoshi Miki, Shota Yoshida
Принадлежит: KYUSYU NANOTEC OPTICS CO Ltd, Nissan Chemical Corp

To provide a liquid crystal display device, whereby transparency when no voltage is applied and scattering properties when a voltage is applied, are good, adhesion between a liquid crystal layer and a vertical liquid crystal alignment film is high, and its lifespan is long even in a severe environment. The liquid crystal display device has a liquid crystal layer formed by disposing a liquid crystal composition containing a liquid crystal and a polymerizable compound between a pair of substrates provided with electrodes, and irradiating and curing the composition with ultraviolet rays by an ultraviolet irradiation apparatus, and at least one of the substrates is provided with a liquid crystal alignment film to vertically align a liquid crystal, wherein the ultraviolet irradiation apparatus is an ultraviolet irradiation apparatus capable of controlling the irradiation light intensity and wavelength of the ultraviolet rays to be irradiated and the surface temperature of the pair of the substrates, the liquid crystal composition contains a compound represented by the formula [1], and the liquid crystal alignment film is a liquid crystal alignment film obtained from a liquid crystal alignment treating agent containing a polymer having a side chain structure represented by the formula [2-1] or formula [2-2]. X 1 -X 2 -X 3 -X 4 -X 5 -X 6 X 7  p X 8   [1] (X 1 is a specific side chain structure; X 2 , X 3 , X 4 and X 6 are each a single bond, etc.; X 5 and X 7 are each a benzene ring, etc.; p is an integer of from 0 to 4; and X 8 is a C 1-18 alkyl group, etc.), —Y 1 -Y 2 -Y 3 -Y 4 Y 5  n Y 6   [2-1] (Y 1 , Y 2 and Y 3 are each a single bond; Y 4 and Y 5 are each a benzene ring, etc.; n is from 0 to 4; and Y 6 is a C 1-18 alkyl group, etc., —Y 7 -Y 8   [2-2] (Y 7 is a single bond; and Y 8 is a C 8-22 alkyl group, etc.).

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Номер записи: 99
17-12-2015 дата публикации

Polymerizable compound having lateral substituent in terminal ring structure

Номер: US20150361190A1
Автор: Masahiro Horiguchi, Masanao Hayashi, Masayuki Iwakubo, Takashi Matsumoto, Tetuo Kusumoto, Yoshio Aoki
Принадлежит: DIC Corp

An object of the invention is to provide a polymerizable compound having small refractive index anisotropy and having high storage stability and high alignment properties when constituting a polymerizable liquid crystal composition, and provide a polymerizable liquid crystal composition containing the polymerizable compound. Further, the object is to provide a polymer produced by polymerizing the polymerizable liquid crystal composition and an optically anisotropic body including the polymer. The present invention provides a polymerizable compound represented by general formula (I), a polymerizable liquid crystal composition containing the compound as a constituent component, and further provides a polymer produced by polymerizing the polymerizable liquid crystal composition and an optically anisotropic body including the polymer.

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Номер записи: 100