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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 1472. Отображено 100.
26-07-2012 дата публикации

Liquid crystal compound having negative dielectric anisotropy, liquid crystal composition and liquid crystal display device using the same

Номер: US20120190897A1
Автор: Junichi Yamashita, Masahide Kobayashi, Sayaka Fujimori
Принадлежит: JNC Corp, JNC Petrochemical Corp

The invention provides a liquid crystal compound having general physical properties necessary for the liquid crystal compound, namely, stability to heat, light and so forth, a small viscosity, a refractive index anisotropy having a suitable magnitude value, a dielectric anisotropy having a suitable magnitude value, steep electrooptical characteristics, a wide temperature range of a nematic phase, and an excellent compatibility with other liquid crystal compounds, in particular, a liquid crystal compound having a wide temperature range of the nematic phase; a compound represented by formula (i): wherein, for example, R 1 and R 2 are alkyl having 1 to 8 carbons or alkenyl having 2 to 8 carbons; ring A 1 is trans-1,4-cyclohexylene or 1,4-phenylene; ring A 2 is trans-1,4-cyclohexylene or 2,3-difluoro-1,4-phenylene; Q 1 and Q 2 are fluorine or chlorine; and h is 0, 1 or 2.

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Номер записи: 1
16-08-2012 дата публикации

Compounds for a liquid crystal medium and high-frequency components containing said liquid crystal medium

Номер: US20120205583A1
Автор: Atsutaka Manabe, Christian Jasper, Detlef Pauluth, Elvira Montenegro, Volker REIFFENRATH
Принадлежит: Merck Patent GmBH

The present invention relates to bistolans of the formula I where one or more of the radicals L 1 to L 3 denote an R x , where R x denotes cyclopropyl, cyclobutyl, cyclopentyl or cyclohexyl, and the other parameters are as defined in Claim 1 . The invention also encompasses liquid-crystalline media which comprise the title compounds, to components for high-frequency technology which comprise these media, in particular phase shifters and microwave array antennae.

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Номер записи: 2
04-10-2012 дата публикации

Liquid crystalline medium

Номер: US20120248374A1
Автор: Melanie Klasen-Memmer, Sabine Schoen
Принадлежит: Merck Patent GmBH

The present invention relates to a liquid-crystalline medium based on a mixture of polar compounds having negative dielectric anisotropy (Δ∈), which is distinguished by the fact that it has a value for the ratio γ 1 /Δn 2 in the range 6-45 with a clearing point of >60° C. and a Δ∈ of ≦−2.3. Media of this type are particularly suitable for electro-optical displays having active-matrix addressing based on the ECB, PA LCD, FFS or IPS effect.

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Номер записи: 3
18-04-2013 дата публикации

POLYMERIZABLE COMPOUNDS AND USE THEREOF IN LIQUID CRYSTAL DISPLAYS

Номер: US20130093975A1
Автор: Derow Stephan, GOETZ Achim, Taugerbeck Andreas
Принадлежит: Merck Patent Gesellschaft Mit Beschrankter Haftung

The present invention relates to polymerisable compounds, to processes and intermediates for the preparation thereof, and to the use thereof for optical, electro-optical and electronic purposes, in particular in liquid-crystal (LC) media and LC displays, especially in LC displays of the PS (“polymer sustained”) or PSA (“polymer sustained alignment”) type. 1. A polymerizable compound of the formula I{'br': None, 'sub': s1', 'm', 's2, 'sup': 1', '1', '2', '2', '3, 'P-(Sp)-A-Z-A(-Z-A)-(Sp)—P\u2003\u2003I'}in which the individual radicals have the following meanings:P on each occurrence, identically or differently, denotes a polymerisable group,Sp on each occurrence, identically or differently, denotes a spacer group,s1, s2 each, independently of one another, denote 0 or 1,{'sup': 1', '2', '3, 'A, A, Aeach, independently of one another, denote 1,4-phenylene, naphthalene-1,4-diyl or naphthalene-2,6-diyl, where, in addition, one or more CH groups in these groups may be replaced by N, phenanthrene-2,7-diyl, anthracene-2,7-diyl, 9,10-dihydrophenanthrene-2,7-diyl, 9H-fluorene-2,7-diyl, 9,9-dimethylfluorene-2,7-diyl or dibenzofuran-3,7-diyl, where all these groups may be unsubstituted or mono- or polysubstituted by L,'}m denotes 0, 1 or 2,{'sub': 2', '2', '2', '2, 'sup': x', '1', 'x', 'x, 'L on each occurrence, identically or differently, denotes P—, P-Sp-, OH, CHOH, halogen, —CN, —NO, —NCO, —NCS, —OCN, —SCN, —C(═O)N(R), —C(═O)Y, —C(═O)R, —N(R), optionally substituted silyl or an optionally substituted carbon group or hydrocarbon group,'}{'sup': 'x', 'sub': '2', 'Rdenotes P—, P-Sp-, H, halogen, straight-chain, branched or cyclic alkyl having 1 to 25, preferably 1 to 12, C atoms, in which, in addition, one or more non-adjacent CHgroups may be replaced by —O—, —S—, —CO—, —Co—O—, —O—CO—, —O—CO—O— in such a way that O and/or S atoms are not linked directly to one another, and in which, in addition, one or more H atoms may be replaced by F, Cl, P— or P-Sp-,'}{'sup': '1', 'Ydenotes ...

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Номер записи: 4
09-05-2013 дата публикации

LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL DISPLAY DEVICE

Номер: US20130112918A1
Автор: Hattori Norikatsu, Matsumura Yoshinari
Принадлежит:

The liquid crystal composition includes a specific two-ring compound having a large optical anisotropy and a small viscosity as a first component, a specific three-ring compound having a high maximum temperature and a large dielectric anisotropy as a second component, and a specific compound having a large dielectric anisotropy as a third component, and may include a specific compound having a small viscosity as a fourth component, a specific three-ring compound having a large optical anisotropy and a large dielectric anisotropy as a fifth component, and a specific compound having a large dielectric anisotropy as a sixth component, and the liquid crystal display device contains this composition. 3. The liquid crystal composition according to claim 2 , wherein the second component is at least one compound selected from the group of compounds represented by formula (2-1).4. The liquid crystal composition according to claim 2 , wherein the second component is at least one compound selected from the group of compounds represented by formula (2-4).5. (canceled)6. The liquid crystal composition according to claim 2 , wherein the third component is at least one compound selected from the group of compounds represented by formula (3-3).7. The liquid crystal composition according to claim 1 , wherein the ratio of the first component is in the range of 5% by weight to 50% by weight claim 1 , the ratio of the second component is in the range of 10% by weight to 90% by weight claim 1 , and the ratio of the third component is in the range of 5% by weight to 85% by weight based on the total weight of the liquid crystal composition.10. The liquid crystal composition according to claim 9 , wherein the fourth component is at least one compound selected from the group of compounds represented by formula (4-7).11. (canceled)12. The liquid crystal composition according to claim 8 , wherein the ratio of the fourth component is in the range of 5% by weight to 85% by weight based on the ...

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Номер записи: 5
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: 6
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: 7
25-07-2013 дата публикации

LIQUID CRYSTALLINE MEDIUM

Номер: US20130187092A1
Автор: MURAKAMI Makoto, NAKAJIMA Shinji, Tanaka Norihiko
Принадлежит: Merck Patent Gesellschaft Mit Beschrankter Haftung

The invention relates to a liquid-crystalline medium based on a mixture of polar compounds having negative dielectric anisotropy, which contains at least one compound of the formula I 3. A liquid crystalline medium according to claim 1 , comprising one or more compounds of formula Ia.5. (canceled)7. A liquid crystalline medium according to claim 1 , wherein the proportion of the compounds of formula I in the liquid crystalline medium as a whole is 1 to 30% by weight.8. A liquid crystalline medium according to claim 1 , wherein the proportion of the compound of formula II in the liquid crystalline medium as a whole is at least 30% by weight.9. A liquid crystalline medium according to claim 1 , wherein the proportion of the compound of formula III in the liquid crystalline medium as a whole is 3 to 50% by weight.10. A method for achieving an electrooptical effect claim 1 , comprising addressing a liquid crystalline medium according to .11. An electrooptical liquid crystal display containing a liquid crystalline medium according to .12. An electrooptical display according to claim 11 , which has active matrix addressing and is based on the ECB claim 11 , VA claim 11 , ASV claim 11 , PS-VA claim 11 , MVA claim 11 , FFS or PALC mode.13. A liquid crystalline medium according to claim 1 , wherein the proportion of the compounds of formula Z-15 in the liquid crystalline medium as a whole is 5 to 25% by weight.19. A liquid crystalline medium according to claim 1 , further comprising one or more UV absorbers claim 1 , nanoparticles claim 1 , nanobeeds claim 1 , microparticles claim 1 , antioxidants and/or free-radical scavengers. The invention relates to a liquid-crystalline medium based on a mixture of polar compounds having negative dielectric anisotropy, which contains at least one compound of the formula I and at least one compound of formula IIwhereinisorandMedia of this type are to be used, in particular, for electro-optical displays with active-matrix addressing based ...

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Номер записи: 8
15-08-2013 дата публикации

Switch element comprising a liquid-crystalline medium

Номер: US20130208227A1
Автор: Michael Junge
Принадлежит: Merck Patent GmBH

The present invention relates to a switch element, which is thermoresponsive and which switches between a less transmissive state for radiant energy and a more transmissive state for radiant energy, and which comprises a liquid-crystalline medium. The invention furthermore relates to the use of the switch element for the regulation of radiant energy flow between interior spaces and the environment and for the regulation of the temperature of interior spaces. The invention furthermore relates to a liquid-crystalline medium, characterised in that it comprises a compound of the formula (I), in particular for use in the switch elements according to the invention.

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Номер записи: 9
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: 10
05-09-2013 дата публикации

DIFLUOROETHYLENEOXI DERIVATIVES, THE LIQUID CRYSTAL COMPOSITION AND THE LIQUID CRYSTAL DISPLAY DEVICE

Номер: US20130230669A1
Автор: SASADA Yasuyuki
Принадлежит:

To provide a liquid crystal compound showing a large absolute value of dielectric anisotropy (|Δ∈|. A compound is represented by formula (1): 2. The compound according to claim 1 , wherein claim 1 , in formula (1) claim 1 , a sum of m claim 1 , n claim 1 , q and r is 0 claim 1 , 1 claim 1 , 2 or 3.4. The compound according to claim 3 , wherein claim 3 , in formulas (1-1) to (1-10) claim 3 ,Ra and Rb are each 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, and polyfluoroalkenyl having 2 to 10 carbons;{'sup': 1', '2', '3', '4', '5, 'A, A, A, Aand Aare each independently 1,4-cyclohexylene, 1,4-phenylene, 2-fluoro-1,4-phenylene, 2,3-difluoro-1,4-phenylene, 3,5-difluoro-1,4-phenylene, 2,5-difluoro-1,4-phenylene, cyclohexene-1,4-diyl, decahydronaphthalene-2,6-diyl, 1,2,3,4-tetrahydronaphthalene-2,6-diyl or naphthalene-2,6-diyl;'}{'sup': 1', '2', '4', '5, 'sub': 2', '2', '2', '4', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '2', '3', '2', '3, 'Z, Z, Zand Zare each independently a single bond, —(CH)—, —(CH)—, —COO—, —OCO—, —CHO—, —OCH—, —CFO—, —OCF—, —CH═CH—, —CF═CF—, —C≡C—, —CHCO—, —COCH—, —CHSiH—, —SiHCH—, —(CH)COO—, —OCO(CH)—, —(CH)CFO—, —OCF(CH)—, —(CH)O— or —O(CH)—.'}5. The compound according to claim 3 , represented by any one of formulas (1-1) to (1-6) claim 3 , wherein claim 3 , in the formulas claim 3 ,Ra and Rb are each 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', '5, 'A, A, A, Aand Aare each independently 1,4- ...

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Номер записи: 11
12-09-2013 дата публикации

LIQUID CRYSTALLINE MEDIUM

Номер: US20130234066A1
Автор: MURAKAMI Makoto, NAKAJIMA Shinji, Tanaka Norihiko
Принадлежит: Merck Patent GmBH

The invention relates to a liquid-crystalline medium based on a mixture of polar compounds having negative dielectric anisotropy, which contains at least one compound of the formula I 112-. (canceled)19. A liquid crystalline medium according to claim 17 , wherein the proportion of the compound of formula III in the liquid crystalline medium as a whole is 3 to 50% by weight.20. A liquid crystalline medium according to claim 13 , wherein the proportion of the compounds of formula I in the liquid crystalline medium as a whole is 1 to 30% by weight.21. A liquid crystalline medium according to claim 13 , wherein the proportion of the compound of formula IIj and/or IIk in the liquid crystalline medium as a whole is at least 30% by weight.28. A liquid crystalline medium according to claim 13 , further comprising one or more UV absorbers claim 13 , nanoparticles claim 13 , nanobeeds claim 13 , microparticles claim 13 , antioxidants and/or free-radical scavengers.33. A method for achieving an electrooptical effect claim 13 , comprising addressing a liquid crystalline medium according to .34. An electrooptical liquid crystal display containing a liquid crystalline medium according to .35. An electrooptical display according to claim 34 , which has active matrix addressing and is based on the ECB claim 34 , VA claim 34 , ASV claim 34 , PS-VA claim 34 , MVA claim 34 , FFS or PALC mode. The invention relates to a liquid-crystalline medium based on a mixture of polar compounds having negative dielectric anisotropy, which contains at least one compound of the formula I and at least one compound of formula IIwhereinMedia of this type are to be used, in particular, for electro-optical displays with active-matrix addressing based on the ECB effect, for IPS (in plane switching) and for FFS (fringe field switching) displays.The principle of electrically controlled birefringence, the ECB (electrically controlled birefringence) effect or DAP (deformation of aligned phases) effect was ...

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Номер записи: 12
26-09-2013 дата публикации

LIQUID CRYSTALLINE MEDIUM

Номер: US20130248761A1
Автор: MURAKAMI Makoto, NAKAJIMA Shinji, Tanaka Norihiko
Принадлежит: Merck Patent GmBH

The invention relates to a liquid-crystalline medium based on a mixture of polar compounds having negative dielectric anisotropy, which contains at least one compound of the formula I 112-. (canceled)15. A liquid crystalline medium according to claim 14 , comprising one or more compounds of formula Ia.19. A liquid crystalline medium according to claim 17 , wherein the proportion of the compound of formula III in the liquid crystalline medium as a whole is 3 to 50% by weight.20. A liquid crystalline medium according to claim 13 , wherein the proportion of the compounds of formula I in the liquid crystalline medium as a whole is 1 to 30% by weight.27. A liquid crystalline medium according to claim 13 , further comprising one or more UV absorbers claim 13 , nanoparticles claim 13 , nanobeeds claim 13 , microparticles claim 13 , antioxidants and/or free-radical scavengers.30. A liquid crystalline medium according to claim 29 , wherein the proportion of the compound of formula II in the liquid crystalline medium as a whole is at least 30% by weight.34. A method for achieving an electrooptical effect claim 13 , comprising addressing a liquid crystalline medium according to .35. An electrooptical liquid crystal display containing a liquid crystalline medium according to .36. An electrooptical display according to claim 35 , which has active matrix addressing and is based on the ECB claim 35 , VA claim 35 , ASV claim 35 , PS-VA claim 35 , MVA claim 35 , FFS or PALC mode. The invention relates to a liquid-crystalline medium based on a mixture of polar compounds having negative dielectric anisotropy, which contains at least one compound of the formula I and at least one compound of formula IIwhereinMedia of this type are to be used, in particular, for electro-optical displays with active-matrix addressing based on the ECB effect, for IPS (in plane switching) and for FFS (fringe field switching) displays.The principle of electrically controlled birefringence, the ECB ( ...

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Номер записи: 13
26-09-2013 дата публикации

Liquid-crystalline medium

Номер: US20130248762A1
Автор: Brigitte Schuler, Harald Hirschmann, Markus Czanta, Michael Wittek, Volker REIFFENRATH
Принадлежит: Merck Patent GmBH

The invention relates to liquid-crystalline media comprising at least one compound of the formula I, in which R 0 , R 0 * and ring A have the meanings indicated in Claim 1, and to electro-optical liquid-crystal displays, in particular for TN-TFT, OCB, IPS, PS-IPS, FFS, PS-FFS and positive VA applications.

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Номер записи: 14
03-10-2013 дата публикации

LIQUID CRYSTAL MEDIUM AND LIQUID CRYSTAL DISPLAY

Номер: US20130258071A1
Автор: LEE Eun-Kyu, LEE Seung-Eun, SONG Dong-Mee
Принадлежит: Merck Patent GmBH

The present invention relates to a liquid crystal panel, a liquid crystal display device and to a liquid crystal medium having a negative dielectric anisotropy Δ∈. 9. Liquid crystal medium according to claim 1 , characterized in that it comprises:8 to 12% of a compound of the formula Ia,3 to 7% of a compound of the formula Ib,10 to 14% of a compound of the formula IIa,5 to 9% of a compound of the formula IIIa,9 to 12% of a compound of the formula IIIb,12 to 16% of a compound of the formula IVa,16 to 21% of a compound of the formula Va,15 to 19% of a compound of the formula VIa and4 to 8% of a compound of the formula VIIa.10. Liquid crystal medium according to claim 1 , characterized in that it comprises:6 to 8% of a compound of the formula Ia,3 to 7% of a compound of the formula Ib,10 to 14% of a compound of the formula IIa,2 to 6% of a compound of the formula IIIa,9 to 12% of a compound of the formula IIIb,12 to 16% of a compound of the formula IVa,2 to 6% of a compound of the formula IVb,18 to 24% of a compound of the formula Va,13 to 17% of a compound of the formula VIa and2 to 5% of a compound of the formula VIIa.11. Liquid crystal medium according to claim 1 , characterized in that it comprises:13 to 17% of a compound of the formula Ia,3 to 7% of a compound of the formula Ic,9 to 13% of a compound of the formula IIa,4 to 7% of a compound of the formula IIIa,8 to 13% of a compound of the formula IIIb,10 to 17% of a compound of the formula IVa,27 to 33% of a compound of the formula Vb and8 to 11% of a compound of the formula Vc.12. Liquid crystal medium according to claim 1 , characterized in that the LC medium comprises one or more additives selected from the group of pleochroic dyes claim 1 , UV stabilizers claim 1 , antioxidants claim 1 , chiral dopants claim 1 , polymerization initiators claim 1 , microparticles and nanoparticles.14. A stabilized liquid crystal medium obtained or obtainable by polymerization of the reactive mesogen or the reactive mesogens of ...

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Номер записи: 15
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: 16
24-10-2013 дата публикации

LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL DISPLAY DEVICE

Номер: US20130278851A1
Автор: FURUSATO YOSHIMASA, MAEDA Taketo
Принадлежит:

A liquid crystal composition has a nematic phase, and contains a specific tricyclic compound having a large dielectric anisotropy as a first component and a specific bicyclic compound having a small viscosity as a second component, and may contain a specific compound having a high maximum temperature or a large dielectric anisotropy as a third component, and a specific compound having a high maximum temperature or a small viscosity as a fourth component, and a liquid crystal display device includes the composition. 3. The liquid crystal composition according to claim 1 , wherein a ratio of the first component is in the range of 3% by weight to 30% by weight claim 1 , and a ratio of the second component is in the range of 10% by weight to 80% by weight claim 1 , based on the total weight of the liquid crystal composition.68-. (canceled)9. The liquid crystal composition according to claim 4 , wherein a ratio of the third component is in the range of 10% by weight to 80% by weight based on the total weight of the liquid crystal composition.1213-. (canceled)14. The liquid crystal composition according to claim 10 , wherein a ratio of the fourth component is in the range of 5% by weight to 60% by weight based on the total weight of the liquid crystal composition.15. 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 0.07 or more claim 1 , and a dielectric anisotropy (25° C.) at a frequency of 1 kHz is 2 or more.16. A liquid crystal display device including the liquid crystal composition according to .17. The liquid crystal display device according to claim 16 , wherein an operating mode of the liquid crystal display device is a TN mode claim 16 , an ECB mode claim 16 , an OCB mode claim 16 , an IPS mode or a PSA mode claim 16 , and a driving mode of the liquid crystal display device is an active matrix mode.18. Use of the ...

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Номер записи: 17
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: 18
09-01-2014 дата публикации

Liquid crystal composition and liquid crystal display device

Номер: US20140010973A1
Автор: Norikatsu Hattori, Subaru Kawasaki, Yasuyuki Gotoh
Принадлежит: JNC Corp, JNC Petrochemical Corp

A liquid crystal composition including a polymerizable compound, and an AM device including the liquid crystal composition are described. The liquid crystal composition includes the compound (1) and the compound (2): wherein P 1 and P 2 are polymerizable groups; the rings A, B, C and E are 1,4-cyclohexylene or 1,4-phenylene, etc.; the ring D is 2,3-difluoro-1,4-phenylene, etc.; Z 1 and Z 2 are alkylene, etc.; L 1 , Z 3 and Z 4 are a single bond, etc.; R 1 and R 2 are alkyl, etc.; and q, r and s are 1, etc.

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Номер записи: 19
23-01-2014 дата публикации

LIQUID CRYSTAL COMPOUND HAVING FLUOROVINYL GROUP, LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL DISPLAY DEVICE

Номер: US20140021406A1
Автор: GOTOH YASUYUKI, Kimura Keiji
Принадлежит:

A liquid crystal compound having a high stability to heat, light and so forth, 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, a liquid crystal composition containing the compound, and a liquid crystal display device including the composition. The compound is represented by formula (1): 2. The compound according to claim 1 , wherein claim 1 , in formula (1) claim 1 , Ris halogen claim 1 , alkyl having 1 to 15 carbons claim 1 , alkenyl having 2 to 15 carbons claim 1 , alkoxy having 1 to 14 carbons or alkenyloxy having 2 to 14 carbons; Z claim 1 , Z claim 1 , Zand Zare independently a single bond claim 1 , —(CH)— claim 1 , —CH═CH— claim 1 , —CF═CF— claim 1 , —COO— claim 1 , —OCO— claim 1 , —CFO— or —OCF—; Xis halogen claim 1 , —C≡N claim 1 , N═C═S claim 1 , —SFor alkyl having 1 to 10 carbons claim 1 , and in the alkyl claim 1 , at least one of —CH— may be replaced by —O— or —S— claim 1 , at least one of —(CH)— may be replaced by —CH═CH— claim 1 , and in the groups claim 1 , at least one of hydrogen may be replaced by halogen.3. The compound according to claim 2 , wherein Ris fluorine claim 2 , alkyl having 1 to 15 carbons claim 2 , alkenyl having 2 to 15 carbons claim 2 , alkoxy having 1 to 14 carbons or alkenyloxy having 2 to 14 carbons; Z claim 2 , Z claim 2 , Zand Zare independently a single bond claim 2 , —(CH)— claim 2 , —CH═CH— claim 2 , —COO— or —CFO—; Land Lare independently hydrogen or fluorine; and Xis fluorine claim 2 , —CF claim 2 , —CHF claim 2 , —CHF claim 2 , —OCF claim 2 , —OCHFor —OCHF.4. The compound according to claim 3 , wherein Ris fluorine claim 3 , alkyl having 1 to 10 carbons or alkenyl having 2 to 10 carbons; ring A claim 3 , ring Aand ring Aare independently 1 claim 3 ,4-cyclohexylene claim 3 , 1 claim 3 ,4-phenylene claim 3 , 1 claim 3 ,4- ...

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Номер записи: 20
23-01-2014 дата публикации

Liquid-crystal display

Номер: US20140022473A1
Автор: BEST Peter, Derow Stephan, GOETZ Achim, Klasen-memmer Melanie, SCHOEN Sabine
Принадлежит: Merck Patent GmBH

Disclosed are liquid-crystal (LC) media for use in LC displays of the PS (polymer stabilised) or PSA (polymer sustained alignment) type which contain a liquid-crystal (LC) mixture that contains one or more compounds of formula I 7. A display according to claim 1 , wherein the LC mixture comprises 1 to 25% of one or more compounds of formula I.8. A display according to claim 3 , wherein the LC mixture comprises one or more compounds selected from formula CY in which a=1 claim 3 , formula PY in which b=0 and formula LY in which f=0 claim 3 , in a total concentration of 1 to 60%.9. A display according to claim 3 , wherein the LC mixture comprises one or more compounds selected from formula CY in which a=2 and formula PY in which b=1 claim 3 , in a total concentration of 1 to 60%.13. A liquid-crystal medium according to claim 12 , wherein said medium comprisesa polymerizable component A) comprising one or more polymerizable compounds, anda liquid-crystalline component B) comprising a liquid-crystal (LC) mixture comprising one or more compounds of formula I.14. A liquid-crystal medium according to claim 12 , wherein said medium comprisesa polymer obtainable by polymerization of a polymerizable component A) comprising one or more polymerizable compounds, anda liquid-crystalline component B) comprising a liquid-crystal (LC) mixture comprising one or more compounds of formula I.15. A method for generating a tilt angle in a liquid-crystal medium in a polymer stabilized (PS) or polymer sustained alignment (PSA) display by in-situ polymerization of polymerizable compound(s) in the display claim 12 , wherein the liquid-crystal medium is according to claim 12 , said method comprising applying an electric or magnetic field to said medium.16. A liquid-crystal display of the polymer stabilized (PS) type or of the polymer sustained alignment (PSA) type containing an LC medium according to .17. A liquid-crystal display according to claim 16 , wherein said display is a PSA-VA claim 16 ...

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Номер записи: 21
30-01-2014 дата публикации

LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL DISPLAY

Номер: US20140028959A1
Автор: Kim Eun A, KIM Kyung Min, KIM Min-Hee, KIM Min-jae, LEE Jin Hyeong, OH Keun Chan, SEONG Dong-Gi
Принадлежит: Samsung Display Co., Ltd.

A liquid crystal composition includes a first compound represented by the following Chemical Formula 1 and a second compound represented by the following Chemical Formula 2. (herein, in Chemical Formula 1, R1 is an alkenyl group including a double bond and R2 is an alkyl group or an alkoxy group, and in Chemical Formula 2, R and R′ are each independently an alkyl group or an alkoxy group). 4. The liquid crystal composition of claim 3 , wherein the liquid crystal composition includes the first compound claim 3 , the second compound claim 3 , the third compound claim 3 , the fifth compound claim 3 , the sixth compound claim 3 , and the seventh compound claim 3 , wherein a content of the first compound is about 19 wt % to about 39 wt % claim 3 , wherein a content of the second compound is about 24 wt % to 44 wt % claim 3 , wherein a content of the third compound is about 6 wt % to about 20 wt % claim 3 , wherein a content of the fifth compound is about 3 wt % to about 13 wt % claim 3 , wherein a content of the sixth compound is about 5 wt % to about 15 wt % claim 3 , and wherein a content of the seventh compound is about 1 wt % to about 11 wt %.6. The liquid crystal composition of claim 5 , wherein the liquid crystal composition includes the first compound claim 5 , the second compound claim 5 , the third compound claim 5 , the fourth compound claim 5 , the sixth compound claim 5 , and the eighth compound claim 5 , wherein a content of the first compound is about 19 wt % to about 59 wt % claim 5 , wherein a content of the second compound is about 10 wt % to about 30 wt % claim 5 , wherein a content of the third compound is about 4 wt % to about 18 wt % claim 5 , wherein a content of the fourth compound is about 6 wt % to about 20 wt % claim 5 , wherein a content of the sixth compound is about 3.5 wt % to about 13.5 wt % claim 5 , and wherein a content of the eighth compound is about 3.5 wt % to about 13.5 wt %.7. The liquid crystal composition of claim 1 , wherein the ...

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Номер записи: 22
27-02-2014 дата публикации

COMPOUND HAVING A FIVE-MEMBERED RING, THE LIQUID CRYSTAL COMPOSITION AND THE LIQUID CRYSTAL DISPLAY DEVICE

Номер: US20140054499A1
Автор: Goto Yasuyuki, MASUKAWA Tokifumi, YANO Tomohiro
Принадлежит:

The invention provides a liquid crystal compound that has an excellent compatibility with other liquid crystal compounds and also has at least one of characteristics such as a high stability to heat, light or the like, a suitable refractive index anisotropy (Δn), a low threshold voltage and a suitable dielectric anisotropy (Δ∈). A compound represented by formula (1). 2. The compound according to claim 1 , wherein in formula (1) claim 1 ,{'sup': 1', '2, 'Ris alkyl having 1 to 10 carbons, alkoxy having 1 to 9 carbons or alkenyl having 2 to 10 carbons; Ris alkyl having 1 to 10 carbons, alkoxy having 1 to 9 carbons, alkenyl having 2 to 10 carbons;'}{'sub': '1', 'sup': 2', '3', '1', '2', '3, 'the ring A, the ring Aand the ring Aare each independently 1,4-cyclohexylene, 1,4-phenylene, 2-fluoro-1,4-phenylene, 3-fluoro-1,4-phenylene or 2,3-difluoro-1,4-phenylene, and at least one of the ring A, the ring Aand the ring Ais 2,3-difluoro-1,4-phenylene; and'}{'sup': 1', '2', '3, 'sub': 2', '2', '2', '4', '2', '2', '2', '2, 'Z, Zand Zare each independently a single bond, —(CH)—, —(CH)—, —COO—, —OCO—, —CFO—, —OCF—, —CH═CH—, —CF═CF—, —CHO— or —OCH—.'}3. The compound according to claim 2 , wherein in formula (1) claim 2 ,{'sup': 1', '2, 'sub': 3', '3, 'Ris alkyl having 1 to 7 carbons, alkoxy having 1 to 6 carbons or alkenyl having 2 to 7 carbons; Ris alkyl having 1 to 7 carbons, alkoxy having 1 to 6 carbons, alkenyl having 2 to 7 carbons, —CF, —OCF, fluorine or chlorine;'}; and{'sup': 1', '2', '3, 'sub': 2', '2', '2', '2', '2', '2, 'Z, Zand Zare each independently a single bond, —(CH)—, —COO—, —OCO—, —CFO—, —OCF—, —CHO— or —OCH—.'}48-. (canceled)9. A liquid crystal composition comprising a first component and a second component claim 1 , wherein the first component is at least one compound selected from the compounds according to .18. The liquid crystal composition according to claim 9 , further comprising at least one optically active compound and/or at least one polymerizable ...

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Номер записи: 23
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: 24
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: 25
27-03-2014 дата публикации

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

Номер: US20140085572A1
Автор: Feng Xing, Zhong Xinhui
Принадлежит: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.

The present invention provides a mixture for liquid crystal medium and a liquid crystal display using the same. The mixture for liquid crystal medium comprises: at least one anisotropic liquid crystal material and a polymerizable monomer which will polymerize under UV irradiation. The weight percentage of the polymerizable monomer accounts for 0.1% to 1% of the total mixture for liquid crystal medium. In the mixture for liquid crystal medium and a liquid crystal display using the same according to the present invention, by using a polymerizable monomer which will polymerize under UV irradiation and the appropriate content ratio, the polymer bump with small size and good uniformity can be obtained within the mixture for liquid crystal medium after the polymerization, which avoids the bad liquid crystal alignment and the light spot occurred at the dark state of the liquid crystal panel, and then increases the response rapid of the liquid crystal panel to obtain high contrast ratio and stable mass production. 2. The mixture for liquid crystal medium as claimed in claim 1 , characterized in that any hydrogen on the aromatic ring in the structural formulas of the polymerizable monomer may be substituted by the group of —F claim 1 , —Cl claim 1 , —Br claim 1 , methyl or —CN.6. The liquid crystal display as claimed in claim 5 , characterized in that any hydrogen on the aromatic ring in the structural formulas of the polymerizable monomer may be substituted by the group of —F claim 5 , —Cl claim 5 , —Br claim 5 , methyl or —CN. This application claims priority to Chinese Patent Application Serial No. 201210355420.2, named as “mixture for liquid crystal medium and liquid crystal display using the same”, filed on Sep. 21, 2012, the specification of which is incorporated herein by reference.1. Field of the InventionThe present invention relates to the field of liquid crystal display technology, and in particular to a mixture for liquid crystal medium and a liquid crystal ...

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Номер записи: 26
01-01-2015 дата публикации

Nematic liquid crystal composition and liquid crystal display device using same

Номер: US20150001444A1
Автор: Joji Kawamura, Makoto Negishi, Masahiro Niwa
Принадлежит: DIC Corp

A composition containing a compound represented by general formula (i) and a compound represented by general formula (ii): in the formulas, each of X i1 to X i6 independently represents a hydrogen atom, a fluorine atom or a chlorine atom, and each of X ii1 to X ii4 independently represents a hydrogen atom, a fluorine atom or a chlorine atom.

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Номер записи: 27
01-01-2015 дата публикации

LIQUID CRYSTAL COMPOSITION

Номер: US20150002773A1
Автор: IWASHITA Yoshinori, OGAWA Shinji
Принадлежит:

The present invention relates to a nematic liquid crystal composition useful as a liquid crystal display material and showing a negative value of dielectric anisotropy (Δ∈), and to a liquid crystal display device using the liquid crystal composition. 111-. (canceled)13. The liquid crystal composition according to claim 12 , wherein at least one each of compounds in which A in the general formula (I) represents a 1 claim 12 ,4-phenylene group and a trans-1 claim 12 ,4-cyclohexylene group claim 12 , respectively claim 12 , is contained.14. The liquid crystal composition according to claim 12 , wherein at least one each of compounds in which B in the general formula (II-2) represents a 1 claim 12 ,4-phenylene group and a trans-1 claim 12 ,4-cyclohexylene group claim 12 , respectively claim 12 , is contained.15. The liquid crystal composition according to claim 14 , wherein the compounds represented by the general formula (II-1) claim 14 , the general formula (II-2) claim 14 , and the general formula (III) are contained at 35% to 70% by mass.16. The liquid crystal composition according to claim 12 , wherein Z represented by an equation below is 13000 or less claim 12 ,{'br': None, 'i': Z=γ', 'n, 'sup': '2', '1/Δ\u2003\u2003[Math. 1]'}(in the equation, γ1 represents rotational viscosity, and Δn represents refractive index anisotropy), γ1 is 150 or less, and Δn is 0.08 to 0.13.17. The liquid crystal composition according to claim 12 , wherein an upper limit temperature of a nematic liquid crystal phase is 60° C. to 120° C. claim 12 , a lower limit temperature of the nematic liquid crystal phase is −20° C. or less claim 12 , and a difference between the upper limit temperature and lower limit temperature of the nematic liquid crystal phase is 100° C. to 150° C.18. The liquid crystal composition according to claim 12 , wherein resistivity is 10(Ω·m) or more.20. The liquid crystal composition according to claim 19 , wherein in the general formula (V) claim 19 , C represents ...

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Номер записи: 28
07-01-2016 дата публикации

LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL DISPLAY DEVICE

Номер: US20160002532A1
Автор: FURUSATO YOSHIMASA, Saito Masayuki
Принадлежит:

A liquid crystal composition that has negative dielectric anisotropy and that comprises a specific compound having a large optical anisotropy and a small viscosity as a first component, a specific compound having a small viscosity as a second component, and a specific compound having a large negative dielectric anisotropy as a third component, and may comprise a specific compound having a high maximum temperature or a low maximum temperature as a fourth component, or a specific compound having a polymerizable group as an additive component. 3. The liquid crystal composition according to claim 1 , wherein the ratio of the first component is in the range of 3% by weight to 20% by weight claim 1 , the ratio of the second component is in the range of 5% by weight to 60% by weight claim 1 , and the ratio of the third component is in the range of 15% by weight to 85% by weight based on the weight of the liquid crystal composition.6. The liquid crystal composition according to claim 4 , wherein the ratio of the fourth component is in the range of 5% by weight to 50% by weight based on the weight of the liquid crystal composition.13. The liquid crystal composition according to claim 7 , wherein the ratio of the additive component is in the range of 0.03% by weight to 10% by weight based on the weight of the liquid crystal composition.14. A liquid crystal display device comprising the liquid crystal composition according to .15. The liquid crystal display device according to claim 14 , wherein the operating mode of the liquid crystal display device is an IPS mode claim 14 , a VA mode claim 14 , an FFS mode or an FPA mode claim 14 , and the driving mode of the liquid crystal display device is an active matrix mode.16. A liquid crystal display device with a polymer sustained alignment type claim 1 , comprising the liquid crystal composition according to claim 1 , where the polymerizable compound in the liquid crystal composition has been polymerized.17. (canceled)18. (canceled ...

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Номер записи: 29
05-01-2017 дата публикации

LIQUID-CRYSTALLINE MEDIUM AND LIQUID-CRYSTAL DISPLAY

Номер: US20170002269A1
Автор: CZANTA Markus, Junge Michael, Montenegro Elvira, Reiffenrath Volker, WITTEK Michael
Принадлежит: Merck Patent GmBH

The present invention relates to dielectrically positive liquid-crystalline media comprising one or more compounds of the formula I, 4. A medium according to claim 1 , wherein the total concentration of the compounds of the formula I in the medium is in the range from 1 ppm to 20 claim 1 ,000 ppm.6. A medium according to claim 1 , which comprises one or more compounds of the formula II.7. A medium according to claim 1 , which comprises one or more compounds of the formula III.9. A liquid-crystal display claim 1 , which contains a medium according to .10. A display according to which is addressed by an active matrix.11. A method which comprises including a medium according to in a liquid-crystal display.12. A process for the preparation of a medium according to claim 1 , wherein one or more compounds of the formula I claim 1 , as given in claim 1 , are mixed with{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'one or more of the compounds of formula II as given in and/or'}{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'one or more of the compounds of formula III as given in and/or'}one or more further mesogenic compounds and/orone or more additives. The present invention relates to liquid-crystalline media and to liquid-crystal displays containing these media, especially to displays addressed by an active matrix and in particular to displays of the twisted nematic (TN), in-plane switching (IPS) or fringe-field switching (FFS) type.Liquid-crystal displays (LCDs) are used in many areas for the display of information. LCDs are used both for direct-view displays and for projection-type displays. The electro-optical modes used are, for example, the twisted nematic (TN), super twisted nematic (STN), optically compensated bend (OCB) and electrically controlled birefringence (ECB) modes together with their various modifications, as well as others. All these modes utilise an electric field which is substantially perpendicular to the substrates or the liquid-crystal layer ...

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Номер записи: 30
02-01-2020 дата публикации

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

Номер: US20200002613A1
Автор: Akihiro Takata, Hiroyuki Tanaka
Принадлежит: JNC Corp, JNC Petrochemical Corp

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

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Номер записи: 31
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: 32
04-01-2018 дата публикации

LIGHT MODULATION ELEMENT

Номер: US20180004045A1
Автор: Chen Kuan-Yu, FIEBRANZ Bernd, SEIBERT Harald, WU Ming-Chou
Принадлежит: Merck Patent GmBH

The invention relates to a light modulation element comprising a cholesteric liquid crystalline medium sandwiched between two substrates (1), provided with a common electrode structure (2) and a driving electrode structure (3) individually, wherein the substrate with driving and/or common electrode structure is additionally provided with an alignment electrode structure (4) which is separated from the driving and or common electrode structure on the same substrate by a dielectric layer (5), characterized in that it comprises at least one alignment layer (6) directly adjacent to the liquid crystalline medium. The invention is further related to a method of production of said light modulation element and to the use of said light modulation element in various types of optical and electro-optical devices, such as electro-optical displays, liquid crystal displays (LCDs), non-linear optic (NLO) devices, and optical information storage devices. 1. Light modulation element comprising a cholesteric liquid crystalline medium sandwiched between two substrates (1) , provided with a common electrode structure (2) and a driving electrode structure (3) individually , wherein the substrate with driving and/or common electrode structure is additionally provided with an alignment electrode structure (4) , which is separated from the driving and or common electrode structure on the same substrate by a dielectric layer (5) , characterized in that it comprises at least one alignment layer (6) directly adjacent to the liquid crystalline medium.2. Light modulation element according to claim 1 , wherein the alignment electrode structure comprises periodic substantially parallel stripes electrodes having a gap between each electrode in the range from 500 nm to 10 μm claim 1 , and an width of each stripe electrode is in a range from 500 nm to 10 μm claim 1 , and wherein the height of each stripe electrode is in a range from 10 nm to 10 μm.3. Light modulation element according to claim 1 , ...

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Номер записи: 33
12-01-2017 дата публикации

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

Номер: US20170009137A1
Автор: SASADA Yasuyuki
Принадлежит:

A solution is 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 claim 1 , in formula (1) claim 1 ,{'sup': a', 'b, 'sub': 2', '2', '2, 'Rand Rare independently alkyl having 1 to 20 carbons, and in the groups, at least one piece of —CH— may be replaced by —O— or —S—, one or two pieces of —CHCH— may be replaced by —CH═CH— or —C≡C—, and in the monovalent groups, at least one piece of hydrogen may be replaced by fluorine or chlorine; and'}X and Y are independently fluoroalkyl having 1 to 3 carbons, fluoroalkoxy having 1 to 3 carbons or pentafluorosulfanil, and one of X and Y may be fluorine.3. The compound according to claim 1 , wherein claim 1 , in formula (1) claim 1 ,{'sup': a', 'b, 'sub': 2', '2', '2, 'Rand Rare independently alkyl having 1 to 15 carbons, and in the groups, at least one or two pieces of —CH— may be replaced by —O—, one piece of —CHCH— may be replaced by —CH═CH— or —C≡C—, and in the monovalent groups, at least one piece of hydrogen may be replaced by fluorine; and'}X is fluorine, fluoroalkyl having 1 to 3 carbons, fluoroalkoxy having 1 to 3 carbons or pentafluorosulfanil, and Y is fluoroalkyl having 1 to 3 carbons.5. The compound according to claim 4 , wherein claim 4 , in formula (1a) claim 4 , Ris alkyl having 1 to 10 carbons and Ris alkoxy having 1 to 10 carbons; and Y is —CF.7. The compound according to claim 6 , wherein claim 6 , in formula (1b) claim 6 , Ra and Rb are independently alkoxy having 1 to 10 carbons; and Y is —CF.8. A liquid crystal composition claim 1 , containing at least one compound according to .13. 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 liquid crystal compound ...

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Номер записи: 34
14-01-2016 дата публикации

NEMATIC LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL DISPLAY DEVICE USING SAME

Номер: US20160009995A1
Автор: Kawamura Joji, Kuriyama Takeshi
Принадлежит: DIC CORPORATION

The present invention provides a liquid crystal composition having negative dielectric anisotropy, large refractive index anisotropy, and low viscosity and containing as a first component, one or two or more compounds represented by general formula (I) and, as a second component, one or two or more compounds represented by general formula (II), wherein dielectric anisotropy (Δ∈) at 25° C. is −2.0 or less. Also, provided is a liquid crystal display device having high contrast, fast response, and excellent display quality without causing image sticking and display defects. 18-. (canceled)12. The nematic liquid crystal composition according to claim 9 , wherein the content of the compound represented by the general formula (I) is 0.001% by mass to 1% by mass claim 9 , and the content of the compound represented by the general formula (II) is 5% by mass to 30% by mass.14. A liquid crystal display device comprising a first substrate provided with a common electrode composed of a transparent conductive material claim 9 , a second substrate provided with a pixel electrode that is composed of a transparent conductive material and a thin film transistor that controls the pixel electrode provided for each pixel claim 9 , and a liquid crystal composition held between the first substrate and the second substrate claim 9 , wherein alignment of liquid crystal molecules in the liquid crystal composition with no voltage applied is substantially vertical to the substrates claim 9 , and the nematic liquid crystal composition according to is used as the liquid crystal composition.15. A polymer stabilized-mode liquid crystal display device produced by polymerizing a polymerizable compound contained in a liquid crystal composition with or without a voltage applied claim 13 , wherein the nematic liquid crystal composition containing the polymerizable compound according to is used as the liquid crystal composition. The present invention relates to a nematic liquid crystal composition ...

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Номер записи: 35
14-01-2016 дата публикации

LIQUID CRYSTAL DISPLAY DEVICE

Номер: US20160009997A1
Автор: Asami Ryosuke, IWASHITA Yoshinori, Koike Junichiro, MAKI Hiroshi, OGAWA Shinji, Shishikura Masami
Принадлежит: DIC CORPORATION

The present invention provides a liquid crystal display device which prevents a decrease in the voltage holding ratio (VHR) of a liquid crystal layer and an increase in ion density (ID) therein and which overcomes problems of defective display such as voids, uneven alignment, and screen burn-in. The liquid crystal display device of the present invention prevents a decrease in the voltage holding ratio (VHR) of a liquid crystal layer and an increase in ion density (ID) therein and reduces defective display such as screen burn-in; hence, such a liquid crystal display device is particularly useful as liquid crystal display devices of a VA mode and PSVA mode which involve active matrix driving and can be applied to the liquid crystal display devices of liquid crystal TV sets, monitors, mobile phones, and smartphones. 116-. (canceled)181. The liquid crystal display device according to claim 17 , wherein in the scattering profile analysis of the organic pigment contained in the color filter claim 17 , the slope parameter in the analysis region (c) is not more than 1.5.19. The liquid crystal display device according to claim 17 , wherein among the whole particles of the organic pigment contained in the color filter claim 17 , the particles having a particle size ranging from 100 nm to 1000 nm have a volume fraction of not more than 7%.20. The liquid crystal display device according to claim 17 , wherein the organic pigment has a maximum light transmittance for light having a wavelength from 600 nm to 700 nm.21. The liquid crystal display device according to claim 17 , wherein the organic pigment has a maximum light transmittance for light having a wavelength from 500 nm to 600 nm.22. The liquid crystal display device according to claim 17 , wherein the organic pigment has a maximum light transmittance for light having a wavelength from 400 nm to 500 nm.23. The liquid crystal display device according to claim 17 , wherein the organic pigment is dispersed in a coating formed ...

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Номер записи: 36
14-01-2016 дата публикации

NEMATIC LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL DEVICE USING THE SAME

Номер: US20160009999A1
Автор: Hirata Shinichi, Kawakami Shotaro, Kuriyama Takeshi
Принадлежит: DIC CORPORATION

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

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Номер записи: 37
14-01-2021 дата публикации

Liquid-Crystal Display Devices Containing Polymerisable Compounds

Номер: US20210009901A1
Автор: DEING Kaja Christina, USHAKOV Dmitry
Принадлежит: Merck Patent GmBH

Liquid-crystal (LC) display devices comprising polymerisable compounds, processes and intermediates for the preparation of the devices and compounds, LC media comprising the compounds, and the use of the polymerisable compounds and LC media for optical, electro-optical and electronic purposes, in particular in LC displays, especially in LC displays of the polymer sustained alignment type. 3. The LC display device of claim 2 , which is a PS-VA claim 2 , PS-OCB claim 2 , PS-IPS claim 2 , PS-FFS claim 2 , PS-UB-FFS claim 2 , PS-posi-VA claim 2 , PS-TN or polymerized SA-VA display.8. The LC display device of claim 5 , wherein claim 5 , in the compound of formula I claim 5 , R is CHand L′ is F.9. The LC display device of claim 1 , wherein the LC medium comprises:a polymerisable component A) comprising one or more polymerisable compounds of formula I, anda liquid-crystalline LC component B) comprising one or more mesogenic or liquid-crystalline compounds.13. A process for the production of an LC display device according to claim 1 , comprising the steps of providing the LC medium comprising one or more polymerisable compounds of formula I between the substrates of the display and polymerising the polymerisable compounds.18. The LC display device of claim 15 , wherein claim 15 , in the compound of formula I claim 15 , R is CHand L′ is F.19. The LC display device of claim 2 , wherein the LC medium comprises:a polymerisable component A) comprising one or more polymerisable compounds of formula I, anda liquid-crystalline LC component B) comprising one or more mesogenic or liquid-crystalline compounds. The present invention relates to liquid-crystal (LC) display devices containing polymerisable compounds, to processes and intermediates for the preparation of the devices and compounds, to LC media comprising the compounds, and to the use of the polymerisable compounds and LC media for optical, electro-optical and electronic purposes, in particular in LC displays, especially in ...

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Номер записи: 38
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: 39
19-01-2017 дата публикации

LIQUID CRYSTAL DISPLAY DEVICE AND LIQUID CRYSTAL COMPOSITION

Номер: US20170015905A1
Автор: FURUSATO YOSHIMASA, Matsumura Yoshinari, Saito Masayuki
Принадлежит:

The means concerns a liquid crystal display device including a first substrate, a second substrate and a liquid crystal composition having a nematic phase, which is placed between these substrates, wherein the liquid crystal composition includes at least one compound selected from the group of compounds represented by formula (1) as a first component: 1. A liquid crystal display device including a first substrate , a second substrate and a liquid crystal composition having a nematic phase , which is placed between these substrates , wherein a flicker rate is in the range of 0% to 1%.4. The liquid crystal display device according to claim 2 , wherein the ratio of the first component of the liquid crystal composition is in the range of 20% by weight to 95% by weight based on the weight of the liquid crystal composition.7. The liquid crystal display device according to claim 5 , wherein the ratio of the second component of the liquid crystal composition is in the range of 5% by weight to 80% by weight based on the weight of the liquid crystal composition.11. The liquid crystal display device according to claim 8 , wherein the ratio of the additive component of the liquid crystal composition is in the range of 0.03% by weight to 10% by weight based on the weight of the liquid crystal composition.12. The liquid crystal display device according to claim 1 , wherein in the liquid crystal composition claim 1 , the maximum temperature of a nematic phase is 70° C. or higher claim 1 , the optical anisotropy (measured at 25° C.) at a wavelength of 589 nanometers is 0.07 or more claim 1 , and the dielectric anisotropy (measured at 25° C.) at a frequency of 1 kHz is −2 or less.13. The liquid crystal display device according to claim 1 , wherein an operating mode of the liquid crystal display device is a TN mode claim 1 , an ECB mode claim 1 , an OCB mode claim 1 , an IPS mode claim 1 , a VA mode claim 1 , an FFS mode or an FPA mode claim 1 , and a driving mode of the liquid ...

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Номер записи: 40
19-01-2017 дата публикации

LIQUID CRYSTAL COMPOSITION

Номер: US20170015906A1
Автор: DONG Yan Li, QIAO Yun Xia, WANG Kui, Wang Wei, YUN GuoLiang
Принадлежит:

The present invention provides a liquid crystal composition, comprising one or more compounds shown as formula I and one or more compounds shown as formula II, and the liquid crystal composition comprising a compound shown as formula II-A: 9. A liquid crystal display element or a liquid crystal display claim 1 , wherein the liquid crystal display element or the liquid crystal display comprises the liquid crystal composition according to ; the display element or display is an active matrix display element or display or a passive matrix display element or display.10. The liquid crystal display element or liquid crystal display according to claim 9 , wherein the active matrix display element or display is a TN-TFT or IPS-TFT liquid crystal display element or display. The present invention relates to the technical field of liquid crystal display, particularly to a liquid crystal composition, and a liquid crystal display element or a liquid crystal display including the liquid crystal composition.At represent, liquid crystal compounds, with the application field thereof being expanded more and more widely, may be applied to various types of display devices, optical devices, sensors and so on. There are various kinds of liquid crystal compounds applied to the field of display, wherein a nematic liquid crystal compound is applied the most widely. The nematic liquid crystal has been applied to passive TN and STN matrix displays and systems with TFT active matrix.For the application field of TFT-LCD (Thin-Film Transistor Technology), in recent years, although the market has been very huge and the technology has been gradually matured, people also have constantly improving requirement to the display technology, especially to aspects of achieving fast response and reducing a driving voltage to reduce a power consumption. As one of the important optoelectronic materials of the liquid crystal display, a liquid crystal material plays an important role in improving the performance ...

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Номер записи: 41
21-01-2016 дата публикации

LIQUID-CRYSTAL OPTICAL MODULATION ELEMENT

Номер: US20160017226A1
Автор: Fujisawa Toru, Hatsusaka Kazuaki, Maruyama Kazunori, Nishiyama Isa
Принадлежит: DIC CORPORATION

The liquid crystal light modulator includes a first substrate () and a second substrate () disposed between two polarizers, and a pair of electrode structures (). The substrates include homeotropic alignment films () and (), and at least one of the substrates has a function of aligning C-directors of liquid crystal molecules along one direction. The one direction forms an azimuth angle in the range of 35 to 55 degrees with the direction of the electric field generated by the pair of electrode structures (). A liquid crystal composition layer () contains a ferroelectric liquid crystal composition having a chiral smectic C phase or a liquid crystal composition that has an achiral smectic C phase and negative dielectric anisotropy. Light transmittance is modulated by the electric field generated by the electrode structures () changing the birefringence index of the liquid crystal composition layer (). 1. A liquid crystal light modulator , comprising:two polarizers that have planes of polarization perpendicular to each other;a first substrate and a second substrate disposed between the polarizers and holding a liquid crystal composition layer therebetween, at least one of the first and second substrates being transparent; anda pair of electrode structures that generate an electric field generally parallel to a substrate face of at least one of the first substrate and the second substrate, at least one of substrates being transparent,wherein at least one of the first substrate and the second substrate has a homeotropic alignment film and has a function of aligning C-directors of liquid crystal molecules along one direction,the one direction forms an azimuth angle in the range of 35 to 55 degrees with the direction of the electric field generated by the pair of electrode structures,the liquid crystal composition layer contains a ferroelectric liquid crystal composition having a chiral smectic C phase or a liquid crystal composition that has an achiral smectic C phase and ...

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Номер записи: 42
17-01-2019 дата публикации

Liquid-crystalline mixtures

Номер: US20190016955A1
Автор: Michael Junge, Peer Kirsch, Ursula Patwal
Принадлежит: Merck Patent GmBH

The present application relates to mixtures which have liquid-crystalline properties. The application furthermore relates to the use of the mixtures in devices which regulate the transmission of light through an area element.

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Номер записи: 43
22-01-2015 дата публикации

LIQUID CRYSTAL DISPLAY DEVICE AND METHOD FOR PRODUCING THE SAME

Номер: US20150022750A1
Автор: IWASHITA Yoshinori, Kuriyama Takeshi, OGAWA Shinji
Принадлежит: DIC CORPORATION

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

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Номер записи: 44
26-01-2017 дата публикации

LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL DISPLAY DEVICE

Номер: US20170022415A1
Автор: FURUSATO YOSHIMASA, Saito Masayuki
Принадлежит:

To show a liquid crystal composition having at least one or a suitable balance regarding at least two of characteristics such as a short response time, a large voltage holding ratio, a low threshold voltage, a large contrast ratio, a long service life and a small flicker rate; and an AM device having characteristics such as a short response time, a large voltage holding ratio, a low threshold voltage, a large contrast ratio and a long service life. 2. The liquid crystal composition according to claim 1 , wherein a proportion of the first component is in the range of 3% by weight to 40% by weight based on the weight of the liquid crystal composition.5. The liquid crystal composition according to claim 3 , wherein a proportion of the second component is in the range of 10% by weight to 90% by weight based on the weight of the liquid crystal composition.8. The liquid crystal composition according to claim 6 , wherein a proportion of the third component is in the range of 10% by weight to 80% by weight based on the weight of the liquid crystal composition.12. The liquid crystal composition according to claim 9 , wherein a proportion of the additive component is in the range of 0.03% by weight to 10% by weight based on the weight of the liquid crystal composition.13. A liquid crystal display device claim 1 , including the liquid crystal composition according to .14. The liquid crystal display device according to claim 13 , wherein an operating mode in the liquid crystal display device includes an IPS mode claim 13 , a VA mode claim 13 , an FFS mode or an FPA mode claim 13 , and a driving mode in the liquid crystal display device includes an active matrix mode.15. A polymer sustained alignment mode liquid crystal display device claim 9 , wherein the liquid crystal display device includes the liquid crystal composition according to claim 9 , or the polymerizable compound in the liquid crystal composition is polymerized.16. The liquid crystal display device according to ...

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Номер записи: 45
24-04-2014 дата публикации

LIQUID-CRYSTALLINE MEDIUM

Номер: US20140110631A1
Автор: Hirschmann Harald, Reiffenrath Volker
Принадлежит: Merck Patent GmBH

The invention relates to a liquid-crystalline medium comprising at least one compound of the formula I, 2. Liquid-crystalline medium according to claim 1 , characterised in that Rin formula I denotes a straight-chain alkyl radical claim 1 , in which claim 1 , in addition claim 1 , one or more CHgroups may be replaced by —CH═CH—.14. Liquid-crystalline medium according to claim 1 , characterised in that it comprises 1-30% by weight of one or more compounds of the formula I.15. Liquid-crystalline medium according to claim 1 , characterised in that it additionally comprises one or more UV stabilisers and/or antioxidants.16. Liquid-crystalline medium according to claim 1 , characterised in that it additionally comprises one or more reactive mesogens (RMs).17. Process for the preparation of a liquid-crystalline medium according to claim 1 , characterised in that one or more compounds of the formula I are mixed with at least one further mesogenic compound and optionally with at least one RM and/or one or more additive(s).18. Use of a liquid-crystalline medium according to for electro-optical purposes.19. Use of the liquid-crystalline medium according to in TN claim 18 , STN claim 18 , TN-TFT claim 18 , OCB claim 18 , IPS claim 18 , PS-IPS claim 18 , FFS claim 18 , PS-FFS displays claim 18 , shutter spectacles for 3D effects claim 18 , LC lenses and positive VA displays.20. Electro-optical liquid-crystal display containing a liquid-crystalline medium according to .21. Electro-optical liquid-crystal display of claim 20 , which is a TN claim 20 , STN claim 20 , TN-TFT claim 20 , OCB claim 20 , IPS claim 20 , PS-IPS claim 20 , FFS claim 20 , PS-FFS display claim 20 , shutter spectacle for 3D effect claim 20 , LC lense and positive VA display. The present invention relates to a liquid-crystalline medium (LC medium), to the use thereof for electro-optical purposes, and to LC displays containing this medium.Liquid crystals are used principally as dielectrics in display devices, ...

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Номер записи: 46
29-01-2015 дата публикации

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

Номер: US20150028256A1
Автор: IWASHITA Yoshinori, Kawamura Joji, OGAWA Shinji
Принадлежит: DIC CORPORATION

A liquid crystal composition having a negative dielectric anisotropy, a component (B) including at least one compound represented by formula (1.1) or formula (1.2), wherein the compound (B) is dielectrically neutral, having a dielectric anisotropy of more than −2 and less than +2; and a component (A) including at least one compound represented by formula (2.1) or formula (2.2), wherein the component (A) is dielectrically negative, having a dielectric anisotropy of −2 or less. 111-. (canceled)15. The liquid crystal composition according to claim 14 , wherein a content of the compound represented by formula (3.1) is 15 mass % or more with respect to a total amount of the liquid crystal composition.16. The liquid crystal composition according to claim 12 , wherein a content of the compound represented by formula (1.1) is 7 mass % or more with respect to a total amount of the liquid crystal composition.21. A liquid crystal display element claim 12 , wherein the liquid crystal composition according to is used.22. A liquid crystal display claim 21 , wherein the liquid crystal display element according to is used. The present invention relates to a liquid crystal composition, as well as a liquid crystal display element and a liquid crystal display, using the liquid crystal composition identified above.Liquid crystal display elements have been used in various devices such as measuring equipment, automotive panel, word processor, electronic note, printer, computer, TV, clock, advertisement panel board, and etc., including watch and electronic calculator. The representative of the liquid crystal display method includes TN (twisted nematic) type, STN (super twisted nematic) type, VA (vertical alignment) type using a TFT (thin film transistor), and IPS (in-plane switching) type. The liquid crystal composition used in the liquid crystal display element is demanded to be stable to external factors such as water, air, heat, and light. It is also demanded to exhibit a liquid ...

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Номер записи: 47
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: 48
24-01-2019 дата публикации

LIQUID CRYSTAL DISPLAY ELEMENT AND METHOD FOR PRODUCING SAME

Номер: US20190025656A1
Автор: Hayashi Masanao, Kusumoto Tetsuo, Kuwana Yasuhiro, Shimizu Kenta
Принадлежит: DIC CORPORATION

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

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Номер записи: 49
29-01-2015 дата публикации

LIQUID CRYSTAL DISPLAY DEVICE AND METHOD FOR PRODUCING THE SAME

Номер: US20150029452A1
Автор: IWASHITA Yoshinori, Kuriyama Takeshi, OGAWA Shinji
Принадлежит: DIC CORPORATION

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

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Номер записи: 50
28-01-2021 дата публикации

LIQUID CRYSTAL DISPLAY DEVICE

Номер: US20210026206A1
Автор: Inoue Yuichi, Kurisawa Kazuki
Принадлежит: DIC CORPORATION

The present invention provides a liquid crystal display device that includes a first substrate having an electrode A formed thereon; a second substrate having an electrode B formed thereon and being disposed to oppose the first substrate; and a liquid crystal layer disposed between the first substrate and the second substrate and substantially vertically aligned with respect to the first and second substrates when no voltage is applied between electrodes, in which the electrode A has a fishbone pattern having a branched portion, and a space (S μm) between adjacent branches of branches of the fishbone pattern and an inter-substrate distance (d μm) between the first substrate and the second substrate satisfy a relationship of formula (1): 1. A liquid crystal display device comprising:a first substrate having an electrode A formed thereon;a second substrate having an electrode B formed thereon and being disposed to oppose the first substrate; anda liquid crystal layer disposed between the first substrate and the second substrate and substantially vertically aligned with respect to the first and second substrates when no voltage is applied between electrodes, {'br': None, 'i': d−', 'S', 'd+, '(0.6)/1.25<<(1.1)/1.25\u2003\u2003formula (1)'}, 'wherein the electrode A has a fishbone pattern having a branched portion, and a space (S μm) between adjacent branches of branches of the fishbone pattern and an inter-substrate distance (d μm) between the first substrate and the second substrate satisfy a relationship of formula (1)2. The liquid crystal display device according to claim 1 , wherein d is smaller than 3.6.3. The liquid crystal display device according to claim 1 , wherein S is smaller than 3.4.4. The liquid crystal display device according to claim 1 , wherein a value of a product Δn-d of a refractive-index anisotropy (Δn) of the liquid crystal layer and d is 320 to 360.5. The liquid crystal display device according to claim 1 , wherein Δn is 0.089 to 0.360.6. The ...

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Номер записи: 51
04-02-2016 дата публикации

POLYMERISABLE COMPOUNDS AND THE USE THEREOF IN LIQUID-CRYSTAL DISPLAYS

Номер: US20160032189A1
Автор: BARON Eveline, Brocke Constanze, HAAS Helga, Hahn Alexander, TONG Qiong, VOGT Julian
Принадлежит: Merck Patent GmBH

The present invention relates to polymerisable compounds, to processes and intermediates for the preparation thereof, to liquid-crystal (LC) media comprising them, and to the use of the polymerisable compounds and LC media for optical, electro-optical and electronic purposes, in particular in LC displays, especially in LC displays of the polymer sustained alignment type. 2. The compound of claim 1 , wherein Aand Aare each independently benzene or naphthalene which are each independently optionally substituted by one or more groups L claim 1 , wherein{'sub': 2', '2', '2', '2, 'sup': x', '1', 'x', 'x', '0', '00', '0, 'L denotes P—, P-Sp-, F, Cl, —CN, —NO, —NCO, —NCS, —OCN, —SCN, —C(═O)N(R), —C(═O)Y, —C(═O)R, —N(R), optionally substituted silyl, optionally substituted aryl or heteroaryl having 5 to 20 ring atoms, or straight-chain or branched alkyl having 1 to 25 C atoms, in which one or more non-adjacent CHgroups are optionally each replaced, independently of one another, by —C(R)═C(R)—, —C≡C—, —N(R)—, —O—, —S—, —CO—, —CO—O—, —O—CO—, or —O—CO—O— in such a way that O and/or S atoms are not linked directly to one another, and in which one or more H atoms are optionally replaced by F, Cl, CN, P— or P-Sp-,'}{'sup': 'x', 'sub': '2', 'Rdenotes H, F, Cl, CN, or a straight chain, branched or cyclic alkyl having 1 to 25 C atoms, wherein one or more non-adjacent CH-groups are optionally replaced by —O—, —S—, —CO—, —CO—O—, —O—CO—, or —O—CO—O— in such a manner that O- and/or S-atoms are not directly connected with each other, and wherein one or more H atoms are each optionally replaced by F, Cl, P— or P-Sp-,'}{'sup': 0', '00, 'Rand Reach, independently of one another, denote H or alkyl having 1 to 20 C atoms, and'}{'sup': '1', 'Yis halogen.'}6. A liquid crystal (LC) medium comprising one or more polymerisable compounds of formula I of .7. The LC medium of claim 6 , comprisinga polymerisable component A) comprising one or more polymerisable compounds of formula I, anda liquid- ...

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Номер записи: 52
01-02-2018 дата публикации

LIQUID CRYSTAL COMPOUND HAVING DIFLUOROMETHYLENEOXY GROUP, LIQUID CRYSTAL COMPOSITION, AND LIQUID CRYSTAL DISPLAY DEVICE

Номер: US20180030347A1
Автор: TAKATA Akihiro
Принадлежит:

Provided are a liquid crystal compound satisfying at least one of physical properties such as high stability heat and light, a high clearing point (or high maximum temperature), low minimum temperature of the liquid crystal phase, small viscosity, suitable optical anisotropy, large dielectric anisotropy, large dielectric constant in a minor axis direction, a suitable elastic constant and excellent compatiblity with other liquid crystal compounds; a liquid crystal composition containing the liquid crystal compound; and a liquid crystal display device including the composition. 2. The compound according to claim 1 , wherein claim 1 , in formula (1) claim 1 , Ris alkyl having 1 to 12 carbons claim 1 , alkenyl having 2 to 12 carbons claim 1 , alkoxyalkyl having 1 to 11 carbons or alkenyloxyalkyl having 2 to 11 carbons.3. The compound according to claim 1 , wherein claim 1 , in formula (1) Z claim 1 , Zand Zare independently a single bond claim 1 , —CHCH— claim 1 , —C≡C— claim 1 , —CH═CH— or —CFO—.8. A liquid. crystal composition claim 1 , containing at least one compound according to .13. The liquid crystal composition according to claim 8 , further containing at least one selected from the group of a polymerizable compound 8 , an optically active compound 8 , an antioxidant 8 , an ultraviolet light absorber 8 , allght stabilizer 8 , a heat stabilizer and an antifoaming agent.14. 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 liquid crystal compound having a difluoromethyleneoxy group, a liquid crystal composition containing the compound and having a nematic phase, and a liquid crystal display device including the composition.A liquid crystal display device has been widely utilized in a display of a personal computer, a television or the like. The device ...

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Номер записи: 53
01-02-2018 дата публикации

LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL DISPLAY DEVICE

Номер: US20180030349A1
Автор: MATSUKUMA MAIKO, Saito Masayuki
Принадлежит:

A liquid crystal compound comprising a specific compound having a positive dielectric anisotropy as the first component, and a specific compound having a low viscosity as a second component. Further, the liquid crystal compound may contain a specific compound having a positive dielectric anisotropy as the third component, a specific compound having a maximum temperature or a low viscosity as the fourth component, or a specific compound having a negative dielectric anisotropy as the fifth component. 7. The liquid crystal composition according to claim 2 , wherein the first component is within the range of 1 wt % to 30 wt % claim 2 , and the second component is within the range of 5 wt % to 70 wt %.10. The liquid crystal composition according to claim 8 , wherein the third component is within the range of 10 wt % to 80 wt %.13. The liquid crystal composition according to claim 11 , wherein the proportion of the fourth component is within the range of 5 wt % to 60 wt %.16. The liquid crystal composition according to claim 14 , wherein the proportion of the fifth component is within the range of 3 wt % to 30 wt %.17. The liquid crystal composition according to claim 2 , wherein the maximum temperature in the nematic phase is 70° C. or higher claim 2 , the optical anisotropy (measured at 25° C.) at a wavelength of 589 nm is 0.07 or greater claim 2 , and the dielectric anisotropy (measured at 25° C.) at a frequency of 1 kHz is 2 or greater.18. A liquid crystal display device containing the liquid crystal composition according to .19. The liquid crystal display device according to claim 18 , wherein the operation mode of the liquid crystal display device is a TN mode claim 18 , an ECB mode claim 18 , an OCB mode claim 18 , an IPS mode claim 18 , a FFS mode claim 18 , or a FPA mode claim 18 , and the driving method of the liquid crystal display device is the active matrix method. This application claims the priority benefit of Japan application serial no. 2016-151121, filed ...

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Номер записи: 54
01-02-2018 дата публикации

LIQUID-CRYSTALLINE MEDIUM

Номер: US20180030350A1
Автор: Bauer Monika, Bremer Matthias, Brocke Constanze, Fortte Rocco, Hirschmann Harald, Reuter Marcus, SCHOEN Sabine, WINDHORST Martina
Принадлежит: Merck Patent GmBH

The invention relates to a liquid-crystalline medium which comprises at least one compound of the formula I, 4. The liquid-crystalline medium according to claim 1 , wherein the proportion of compounds of formula I in said medium as a whole is 1-30% by weight.15. The liquid-crystalline medium according to claim 1 , wherein said medium comprises at least one polymerizable compound.16. The liquid-crystalline medium according to claim 1 , wherein said medium further comprises one or more additives.17. The liquid-crystalline medium according claim 16 , wherein said one or more additives are selected from free-radical scavengers claim 16 , antioxidants and UV stabilizers.18. A process for the preparation of a liquid-crystalline medium according to claim 1 , comprising mixing at least one compound of formula I with at least one compound selected from formulas IIA-13 to IIA-31 claim 1 , IIA-44 to IIA-52 claim 1 , IIB-7 to IIB-10 claim 1 , L-1 to L-11 claim 1 , T-1 to T-21 claim 1 , BC claim 1 , CR claim 1 , PH-1 claim 1 , PH-2 claim 1 , BF-1 claim 1 , BF-2 claim 1 , BS-1 claim 1 , BS-2 claim 1 , O-6 claim 1 , P-1 to P-4 claim 1 , Z-1 to Z-9 claim 1 , and B-1a claim 1 , optionally adding one or more additives claim 1 , and optionally adding at least one polymerizable compound.19. A method of inducing an electro-optical effect comprising applying a voltage to a liquid-crystalline medium according to .20. An electro-optical display having active-matrix addressing claim 1 , said display comprising a liquid-crystalline medium according to as dielectric.21. The electro-optical display according to claim 20 , wherein said display is a VA claim 20 , PSA claim 20 , PA-VA claim 20 , PS-VA claim 20 , PALC claim 20 , IPS claim 20 , PS-IPS claim 20 , FFS claim 20 , PS-FFS display.22. The electro-optical display according to claim 21 , wherein said display is a IPS claim 21 , PS-IPS claim 21 , FFS or PS-FFS display which has a planar alignment layer.29. The liquid-crystalline medium ...

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Номер записи: 55
02-02-2017 дата публикации

Liquid crystal display

Номер: US20170031213A1
Автор: Sun Young Kwon
Принадлежит: Samsung Display Co Ltd

A liquid crystal display including: a first insulation substrate; a first alignment layer disposed on the first insulation substrate; a second insulation substrate facing the first insulation substrate; a second alignment layer disposed on a surface of the second insulation substrate facing the first insulation substrate; and a liquid crystal layer including liquid crystal molecules and disposed between the first alignment layer and the second alignment layer, wherein the liquid crystal molecules include at least one of a first compound represented by Chemical Formula 1 and a second compound represented by Chemical Formula 2:

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Номер записи: 56
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: 57
05-02-2015 дата публикации

TRIFLUOROPHENYL DERIVATIVE, LIQUID CRYSTAL COMPOSITION, AND LIQUID CRYSTAL DISPLAY DEVICE

Номер: US20150034874A1
Автор: Ishitani Tetsuji, Kato Momoko, Kawata Yuko, Niikura Yasuhiro
Принадлежит:

Provided is a novel material included in a liquid crystal composition that can be used in various liquid crystal display devices. A trifluorophenyl derivative represented by General Formula (G1). In General Formula (G1), Arrepresents an arylene group having 6 to 12 carbon atoms, a cycloalkylene group having 3 to 12 carbon atoms, or a cycloalkenylene group having 3 to 12 carbon atoms; m represents 1 or 2; and Rrepresents hydrogen, an alkyl group having 2 to 11 carbon atoms, or an alkoxy group having 2 to 11 carbon atoms. 2. A liquid crystal composition comprising:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'the trifluorophenyl derivative according to ; and'}a chiral material.3. A liquid crystal element comprising the liquid crystal composition according to .4. A liquid crystal display device comprising the liquid crystal composition according to .6. A liquid crystal composition comprising:{'claim-ref': {'@idref': 'CLM-00005', 'claim 5'}, 'the trifluorophenyl derivative according to ; and'}a chiral material.7. A liquid crystal element comprising the liquid crystal composition according to .8. A liquid crystal display device comprising the liquid crystal composition according to .10. A liquid crystal composition comprising:{'claim-ref': {'@idref': 'CLM-00009', 'claim 9'}, 'the trifluorophenyl derivative according to ; and'}a chiral material.11. A liquid crystal element comprising the liquid crystal composition according to .12. A liquid crystal display device comprising the liquid crystal composition according to .14. A liquid crystal composition comprising:{'claim-ref': {'@idref': 'CLM-00013', 'claim 13'}, 'the trifluorophenyl derivative according to ; and'}a chiral material.15. A liquid crystal element comprising the liquid crystal composition according to .16. A liquid crystal display device comprising the liquid crystal composition according to .18. A liquid crystal composition comprising:{'claim-ref': {'@idref': 'CLM-00017', 'claim 17'}, 'the trifluorophenyl ...

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Номер записи: 58
31-01-2019 дата публикации

LIQUID-CRYSTALLINE MEDIUM

Номер: US20190031957A1
Автор: KLASS Dagmar, WITTEK Michael
Принадлежит: Merck Patent GmBH

The invention relates to a liquid-crystalline medium which comprises one or more compounds of the formula BO 9. Use of the liquid-crystalline medium according to for electro-optical purposes.10. Use according to in liquid-crystal light valves for lighting devices for motor vehicles or in liquid-crystal displays.11. Electro-optical component containing a liquid-crystalline medium according to .12. Electro-optical component according to claim 11 , where the component is a liquid-crystal light valve.13. Lighting device for motor vehicles containing a liquid-crystal light valve according to .14. Liquid-crystal display containing a liquid-crystal light valve according to . The present invention relates to a liquid-crystalline medium comprising bicyclooctane derivatives, to the use thereof for electro-optical purposes, in particular for liquid-crystal light valves for use in lighting devices for motor vehicles, to liquid-crystal light valves containing this medium, and to lighting devices based on such liquid-crystal light valves, and to the bicyclooctane derivatives present in these mediaLiquid crystals are used, in particular, as dielectrics in display devices, since the optical properties of such substances can be influenced by an applied voltage. Electro-optical devices based on liquid crystals are known to the person skilled in the art and may be based on various effects. Devices of this type are, for example, TN cells having a twisted nematic structure or STN (“super-twisted nematic”) cells. Modern TN and STN displays are based on an active matrix of individually addressable liquid-crystal light valves (the pixels) with integrated red, green and blue coloured filters for additive generation of the colour images.The electro-optical effects utilised in liquid-crystal displays have recently also been used for other applications.DE 19910004 A1 describes LCD screens as shade for adjusting the brightness distribution of lighting devices for motor vehicles as desired, by ...

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Номер записи: 59
31-01-2019 дата публикации

LIQUID CRYSTAL DISPLAY DEVICE

Номер: US20190033665A1
Автор: FUJIHARA Toshiaki, Mizusaki Masanobu, Ogawa Katsuya, Tsuchiya Hiroshi
Принадлежит:

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

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Номер записи: 60
05-02-2015 дата публикации

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

Номер: US20150038722A1
Автор: Ikenaga Makoto, Ishitani Tetsuji, Kato Momoko, Kobayashi Manabu, Niikura Yasuhiro
Принадлежит:

An organic compound represented by General Formula (G100) is provided. A novel liquid crystal composition containing the organic compound is provided. 4. The organic compound according to claim 2 , wherein Xand Xeach represent the methyl group.5. The organic compound according to claim 1 , wherein Xand Xeach represent the hydrogen atom.6. A liquid crystal composition comprising the organic compound according to any one of to .7. A liquid crystal element comprising the liquid crystal composition according to .8. A liquid crystal display device comprising the liquid crystal element according to . The present invention relates to an object, a method, or a manufacturing method. In addition, the present invention relates to a process, a machine, manufacture, or a composition of matter. In addition, one embodiment of the present invention relates to a semiconductor device, a display device, a driving method thereof, or a manufacturing method thereof. In particular, one embodiment of the present invention relates to a novel organic compound, a liquid crystal composition containing the novel organic compound, a liquid crystal element, a liquid crystal display device, and manufacturing methods thereof.In recent years, liquid crystals have been used in a variety of devices; in particular, liquid crystal display devices (liquid crystal displays) having advantages of thinness and lightness have been used for displays in a wide range of fields.Low power consumption is an added value required of a liquid crystal display device. For example, in an active matrix liquid crystal display device, a transistor with low off-state current is used as a transistor having a function of applying voltage to a liquid crystal element; thus, data is rewritten at longer time intervals (a refresh rate is reduced) in a period during which one image (still image) is displayed, and power consumption is reduced (Patent Document 1).To reduce power consumption of a liquid crystal display device, leakage ...

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Номер записи: 61
12-02-2015 дата публикации

LIQUID CRYSTAL DISPLAY DEVICE

Номер: US20150042930A1
Автор: Funakura Seiji, IWASHITA Yoshinori, Kimura Akira, OGAWA Shinji, Shimada Katsunori
Принадлежит: DIC CORPORATION

The present invention provides a liquid crystal display device that prevents a decrease in voltage holding ratio (VHR) and an increase in ion density (ID) in a liquid crystal layer and resolves the problems of display defects such as white streaks, alignment nonuniformity, and image sticking. Since the liquid crystal display device of the present invention prevents a decrease in voltage holding ratio (VHR) and an increase in ion density (ID) in the liquid crystal layer and resolves the problems of display defects such as image sticking, the liquid crystal display device is useful as VA-mode and PSVA-mode liquid crystal display devices of an active matrix drive type, and is applicable to liquid crystal display devices of liquid crystal televisions, monitors, cellular phones, smart phones, etc. 117.-. (canceled)19. The liquid crystal display device according to claim 18 , wherein claim 18 , of the RGB three-color pixel portions claim 18 , a R pixel portion contains claim 18 , as a coloring material claim 18 , a diketopyrrolopyrrole pigment and/or an anionic red organic dye and a B pixel portion contains claim 18 , as a coloring material claim 18 , an ∈-type copper phthalocyanine pigment and/or a cationic blue organic dye.20. The liquid crystal display device according to claim 18 , wherein claim 18 , of the RGB three-color pixel portions claim 18 , a R pixel portion contains claim 18 , as a coloring material claim 18 , C.I. Solvent Red 124 and a B pixel portion contains claim 18 , as a coloring material claim 18 , C.I. Solvent Blue 7.21. The liquid crystal display device according to claim 18 , wherein claim 18 , of the RGB three-color pixel portions claim 18 , a R pixel portion contains claim 18 , as a coloring material claim 18 , C.I. Pigment Red 254 and a B pixel portion contains claim 18 , as a coloring material claim 18 , C.I. Pigment Blue 15:6.22. The liquid crystal display device according to claim 18 , wherein the G pixel portion contains a halogenated zinc ...

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Номер записи: 62
18-02-2016 дата публикации

LIQUID CRYSTALLINE MEDIUM

Номер: US20160046862A1
Автор: Klasen-memmer Melanie, SCHOEN Sabine
Принадлежит: Merck Patent GmBH

The present invention relates to a liquid-crystalline medium based on a mixture of polar compounds having negative dielectric anisotropy (Δ∈), which is distinguished by the fact that it has a value for the ratio γ/Δnin the range 6-45 with a clearing point of >60° C. and a Δ∈ of ≦−2.3. Media of this type are particularly suitable for electro-optical displays having active-matrix addressing based on the ECB, PA LCD, FFS or IPS effect. 2. A liquid-crystalline medium according to claim 1 , which has a clearing point of 60-90° C.3. A liquid-crystalline medium according to claim 1 , which has a Δ∈ value of −2.3 to −5.5.10. A liquid-crystalline medium according to claim 1 , which has thresholds (capacitive) in the range 1.8-2.3 V.1317-. (canceled)18. An electro-optical display having active-matrix addressing based on the ECB claim 1 , PA LCD claim 1 , FFS or the IPS effect claim 1 , which contains claim 1 , as dielectric claim 1 , a liquid-crystalline medium according to .25. A liquid-crystalline medium according to claim 24 , wherein when Rdenotes alkenyl claim 24 , said group is CH═CH claim 24 , CH—CH═CH claim 24 , CH—CH═CH claim 24 , CH═CH—CHor CH—CH═CH—CH.26. A liquid-crystalline medium according to claim 11 , which comprises10-40% by weight of one or more compounds of the formulae IA and IB, and10-40% by weight of one or more compounds of the formula II.37. A liquid-crystalline medium according to claim 1 , whereinalkenyl and alkenyl* each, independently of one another, denote vinyl, 1E-alkenyl or 3E-alkenyl.38. A liquid-crystalline medium according to claim 1 , wherein Rand Rdenote straight-chain alkyl or straight-chain alkenyl. The present invention relates to a liquid-crystalline medium and to the use thereof in liquid-crystal displays, in particular liquid-crystal displays addressed by means of an active matrix (AMDs or AMLCDs for active matrix addressed liquid crystal displays). Particular preference is given to displays which use an active matrix comprising thin ...

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Номер записи: 63
18-02-2016 дата публикации

LIQUID-CRYSTALLINE MEDIUM

Номер: US20160046863A1
Автор: Archetti Graziano, Fortte Rocco, Klasen-memmer Melanie, SCHOEN Sabine
Принадлежит: Merck Patent GmBH

The invention relates to a liquid-crystalline medium based on a mixture of polar compounds which contains 10. The liquid-crystalline medium according to claim 1 , wherein the mixture contains 0.01 to 10% by weight of the compound of the formula I based on the mixture as a whole.11. The liquid-crystalline medium according to additionally comprising one or more additives.12. The liquid-crystalline medium according to claim 1 , comprising an additive that is an antioxidant claim 1 , stabilizer claim 1 , reactive mesogen claim 1 , dopant claim 1 , microparticle claim 1 , nanoparticle or dyes.16. A process for the preparation of a liquid-crystalline medium according to claim 1 , comprising mixing at least one compound of the formula I and at least one compound of the formulae I-A to I-K with at least one further liquid-crystalline compound claim 1 , and additives are optionally added.17. An electro-optical display having active-matrix or passive matrix addressing claim 1 , said display comprising as a dielectric claim 1 , a liquid-crystalline medium according to .18. The electro-optical display according to that is a VA claim 17 , PM-VA claim 17 , PSA claim 17 , PS-VA claim 17 , PALC claim 17 , FFS claim 17 , PS-FFS claim 17 , IPS or PS-IPS display.19. The electro-optical display according to claim 17 , operated in self-aligning VA mode.20. The liquid-crystalline medium according to claim 14 , wherein P claim 14 , Por Pis a polymerizable group having an acrylate claim 14 , methacrylate claim 14 , fluoroacrylate claim 14 , oxetane claim 14 , vinyl claim 14 , vinyloxy or epoxide group claim 14 , and{'sup': 1', '2', '3, 'sub': 2', 'p1', '2', 'p1', '2', 'p1', '2', 'p1, 'Sp, Spor Spare —(CH)—, —(CH)—O—, —(CH)—CO—O— or —(CH)—O—CO—O—, in which p1 is an integer from 1 to 12, and where the linking to the adjacent ring in the last-mentioned groups takes place via the O atom.'} The invention relates to a liquid-crystalline medium for LC displays, especially for displays without any ...

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Номер записи: 64
16-02-2017 дата публикации

LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL DISPLAY DEVICE

Номер: US20170044435A1
Автор: MATSUDA Naoko, Saito Masayuki
Принадлежит:

To show a liquid-crystal composition having at least one or a suitable balance regarding at least two of characteristics such as a high maximum temperature of a nematic phase, a low minimum temperature thereof, small viscosity, suitable optical anisotropy, large negative dielectric anisotropy, large specific resistance, high stability to ultraviolet light and heat; and an AM device including the composition and having short response time, a large voltage holding ratio, low threshold voltage, a large contrast ratio or a long service life. The liquid-crystal composition has negative dielectric anisotropy and contains a specific compound having a high maximum temperature and small viscosity as a first component, and the composition may contain a specific compound having large negative dielectric anisotropy as a second component, a specific compound having a high maximum temperature or small viscosity as a third component, and a specific compound having a polymerizable group as an additive component. 3. The liquid crystal composition according to claim 1 , wherein a proportion of the first component is in the range of 3% by weight to 30% by weight based on the weight of the liquid crystal composition.6. The liquid crystal composition according to claim 4 , wherein a proportion of the second component is in the range of 10% by weight to 90% by weight based on the weight of the liquid crystal composition.9. The liquid crystal composition according to claim 7 , wherein a proportion of the third component is in the range of 20% by weight to 70% by weight based on the weight of the liquid crystal composition.14. The liquid crystal composition according to claim 11 , wherein a proportion of addition of the additive component is in the range of 0.03% by weight to 10% by weight based on the weight of the liquid crystal composition.16. A liquid crystal display device claim 1 , including the liquid crystal composition according to .17. The liquid crystal display device according ...

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Номер записи: 65
16-02-2017 дата публикации

LIQUID-CRYSTALLINE MEDIUM

Номер: US20170044437A1
Автор: Bauer Monika, Bremer Matthias, Brocke Constanze, Fortte Rocco, Hirschmann Harald, Reuter Marcus, SCHOEN Sabine, WINDHORST Martina
Принадлежит: Merck Patent GmBH

The invention relates to a liquid-crystalline medium which comprises at least one compound of the formula I, 4. The liquid-crystalline medium according to claim 1 , wherein the proportion of the compound(s) of formula I in the medium as a whole is 1-30% by weight.15. The liquid-crystalline medium according to claim 1 , wherein said medium comprises at least one polymerizable compound.16. The liquid-crystalline medium according to claim 1 , wherein said medium comprises one or more additives.17. The liquid-crystalline medium according claim 16 , wherein said one or more additives are selected from free-radical scavengers claim 16 , antioxidants and UV stabilizers.18. A process for the preparation of a liquid-crystalline medium according to claim 1 , comprising mixing at least one compound of formula I with at least one further mesogenic compound claim 1 , optionally adding one or more additives claim 1 , and optionally adding at least one polymerizable compound.19. A method of inducing an electro-optical effect comprising applying a voltage to a liquid-crystalline medium according to .20. An electro-optical display having active-matrix addressing claim 1 , said display comprising a liquid-crystalline medium according to as dielectric.21. The electro-optical display according to claim 20 , wherein said display is a VA claim 20 , PSA claim 20 , PA-VA claim 20 , PS-VA claim 20 , PALC claim 20 , IPS claim 20 , PS-IPS claim 20 , FFS claim 20 , PS-FFS display.22. The electro-optical display according to claim 21 , wherein said display is a IPS claim 21 , PS-IPS claim 21 , FFS or PS-FFS display which has a planar alignment layer.30. The liquid-crystalline medium according to claim 29 , wherein the total amount of compounds CC-3-V and CC-3V-1 combined is up to 65% by weight of the medium.32. The liquid-crystalline medium according to claim 31 , wherein the total amount of compounds of formulae O-10a and/or O-10b and compounds of the formulae O-17a to O-17d combined is 5-40% ...

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Номер записи: 66
16-02-2017 дата публикации

LIQUID-CRYSTALLINE MEDIUM

Номер: US20170044438A1
Автор: Bauer Monika, Bremer Matthias, Brocke Constanze, Fortte Rocco, Hirschmann Harald, Reuter Marcus, SCHOEN Sabine, WINDHORST Martina
Принадлежит: Merck Patent GmBH

The invention relates to a liquid-crystalline medium which comprises at least one compound of the formula I, 4. The liquid-crystalline medium according to claim 1 , wherein the proportion of the compound(s) of formula I in the medium as a whole is 1-30% by weight.15. The liquid-crystalline medium according to claim 1 , wherein said medium comprises at least one polymerizable compound.16. The liquid-crystalline medium according to claim 1 , wherein said medium comprises one or more additives.17. The liquid-crystalline medium according claim 16 , wherein said one or more additives are selected from free-radical scavengers claim 16 , antioxidants and UV stabilizers.18. A process for the preparation of a liquid-crystalline medium according to claim 1 , comprising mixing at least one compound of formula I with at least one further mesogenic compound claim 1 , optionally adding one or more additives claim 1 , and optionally adding at least one polymerizable compound.19. A method of inducing an electro-optical effect comprising applying a voltage to a liquid-crystalline medium according to .20. An electro-optical display having active-matrix addressing claim 1 , said display comprising a liquid-crystalline medium according to as dielectric.21. The electro-optical display according to claim 20 , wherein said display is a VA claim 20 , PSA claim 20 , PA-VA claim 20 , PS-VA claim 20 , PALC claim 20 , IPS claim 20 , PS-IPS claim 20 , FFS claim 20 , PS-FFS display.22. The electro-optical display according to claim 21 , wherein said display is a IPS claim 21 , PS-IPS claim 21 , FFS or PS-FFS display which has a planar alignment layer.30. The liquid-crystalline medium according to claim 29 , wherein the total amount of compounds CC-3-V and CC-3V-1 combined is 10-65% by weight of the medium.32. The liquid-crystalline medium according to claim 31 , wherein the total amount of compounds of formulae O-10a and/or O-10b and compounds of the formulae O-17a to O-17d combined is 5-40% by ...

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Номер записи: 67
15-02-2018 дата публикации

LIQUID CRYSTAL COMPOSITION AND APPLICATION THEREOF

Номер: US20180044592A1
Автор: Chen Haiguang, CHEN Maoxian, CHU Shihong, GUO Yunpeng, JIANG Tianmeng, Li Qinghua, SU Xuehui, TIAN Huiqiang, Wei Xin, Yuan Jin, Zhang Lin
Принадлежит:

The present invention relates to the liquid crystal field, and particularly relates to a liquid crystal composition and use thereof in the liquid crystal display field. The liquid crystal composition of the present invention comprises, in percentages by weight, 5-40% of one or more compounds represented by general formula I, 2-30% of one or more compounds represented by general formula II, and 20-70% of one or more compounds represented by general formula III, and may further comprise 4-30% of one or more compounds represented by general formula IV and/or 5-25% of one or more compounds represented by general formulas V to IX. The combined use of the above-mentioned compounds can effectively reduce the rotational viscosity of the liquid crystal composition, improves related properties of the mixed liquid crystal, and thus reduces the response time thereof. The liquid crystal composition of the present invention can be used for a fast-response liquid display in a variety of display modes. 4. The liquid crystal composition according to claim 3 , comprising claim 3 , in percentages by weight claim 3 , 9-12% of one or more compounds represented by general formula I claim 3 , 5-26% of one or more compounds represented by general formula II claim 3 , 60-67% of one or more compounds represented by general formula III claim 3 , and 5-24% of one or more compounds represented by general formula IV.5. The liquid crystal composition according to claim 3 , comprising claim 3 , in percentages by weight claim 3 , 14-30% of one or more compounds represented by general formula I claim 3 , 3-9% of one or more compounds represented by general formula II claim 3 , 30-50% of one or more compounds represented by general formula III claim 3 , 4-18% of one or more compounds represented by general formula IV claim 3 , and 9-23% of one or more compounds represented by general formulas V to IX.10. The use of the liquid crystal composition of in TN claim 1 , IPS and FFS-type TFT liquid crystal ...

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Номер записи: 68
15-02-2018 дата публикации

CHOLESTERIC LIQUID CRYSTAL COMPOSITION, LIQUID CRYSTAL DISPLAY PANEL AND PREPARATION METHOD THEREOF

Номер: US20180044593A1
Автор: GUO Lanjun, Han Lin, Jiang Kun, Li Na, MA Shaowu, SONG Xuechao, Wang Chunlei, WANG Jian, ZHANG Ruichen, Zhao Wei, ZHOU Kangdi
Принадлежит:

Provided are a cholesteric liquid crystal composition, and a liquid crystal display panel including the composition, and their preparation methods. The cholesteric liquid crystal composition contains a block copolymer and a cholesteric liquid crystal, wherein the block copolymer has a block A including a chiral group Mand a block B including a chiral group M, and the cholesteric liquid crystal has at least two different pitches. The display panel includes an array substrate and a counter substrate placed by cell assembly, and a liquid crystal layer disposed between the array substrate and the counter substrate, wherein the liquid crystal layer comprises the cholesteric liquid crystal composition. The liquid crystal layer in the planar texture is capable of reflecting light of at least two wavelengths in the visible light region. 1. A cholesteric liquid crystal composition comprising a block copolymer and a cholesteric liquid crystal , wherein:{'sub': 1', '2, 'the block copolymer comprises a block A containing a chiral group Mand a block B containing a chiral group M; and'}the cholesteric liquid crystal has at least two different pitches.4. The cholesteric liquid crystal composition of claim 1 , wherein the optical rotation of the block A is different from that of the block B.5. The cholesteric liquid crystal composition of claim 1 , wherein the content of the chiral group Min the block A is from 5 to 100 mol %.6. The cholesteric liquid crystal composition of claim 1 , wherein the content of the chiral group Min the block B is from 5 to 100 mol %.7. The cholesteric liquid crystal composition of claim 1 , wherein the chiral group Mis different from the chiral group M.8. The cholesteric liquid crystal composition of claim 1 , wherein the content of the chiral group Min the block A and the content of the chiral group Min the block B are the same or different.9. The cholesteric liquid crystal composition of claim 1 , wherein the molecular weight of the block copolymer is ...

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Номер записи: 69
16-02-2017 дата публикации

LCD DEVICE

Номер: US20170045765A1
Автор: Fujisawa Toru, GOTO Marina, Jang Keumhee, Kodera Fumiaki, Maruyama Kazunori, SUDO Go, Takatsu Haruyoshi, YAMAMOTO Shuuhei
Принадлежит: DIC CORPORATION

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

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Номер записи: 70
15-02-2018 дата публикации

LIQUID CRYSTAL COMPOSITION AND A LIQUID CRYSTAL DISPLAY INCLUDING THE SAME

Номер: US20180046032A1
Автор: BAE Ji Hong, JANG Ji Eun, Kim Tae Hoon, KWON SUN YOUNG, Lee Chang Hun, LEE Gak Seok, OH Keun Chan, SON Jong Ho
Принадлежит:

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

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Номер записи: 71
14-02-2019 дата публикации

LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL DISPLAY DEVICE

Номер: US20190048261A1
Автор: KURIHARA ERIKO, Saito Masayuki
Принадлежит:

Provided are a liquid crystal composition satisfying at least one of characteristics such as a high maximum temperature, a low minimum temperature, small viscosity, large optical anisotropy, 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 may contain a specific compound having small viscosity or a low minimum temperature as a first component, a specific compound having large optical anisotropy and negative dielectric anisotropy as a second component, a specific compound having a high maximum temperature or small viscosity as a third component, a specific compound having negative dielectric anisotropy or a low minimum temperature as a fourth component, or a specific compound having a polymerizable group as an additive component. 3. The liquid crystal composition according to claim 1 , wherein a proportion of the first component is in the range of 5% by weight to 60% by weight.5. The liquid crystal composition according to claim 1 , wherein a proportion of the second component is in the range of 5% by weight to 50% by weight.8. The liquid crystal composition according to claim 6 , wherein a proportion of the third component is in the range of 5% by weight to 55% by weight.11. The liquid crystal composition according to claim 9 , wherein a proportion of the fourth component is in the range of 15% by weight to 70% by weight.15. The liquid crystal composition according to claim 12 , wherein a proportion of the additive is in the range of 0.03% by weight to 10% by weight.16. A liquid crystal display device claim 1 , including the liquid crystal composition according to .1720-. (canceled) The invention relates to a liquid crystal composition, a liquid crystal display device including the composition, and so forth. In particular, the invention relates to a liquid crystal composition having negative dielectric anisotropy, and a liquid ...

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Номер записи: 72
26-02-2015 дата публикации

FLUOROBIPHENYL-CONTAINING COMPOSITION

Номер: US20150053891A1
Автор: Kawamura Joji, Negishi Makoto, Niwa Masahiro
Принадлежит: DIC CORPORATION

A composition contains three or more compounds represented by general formula (i) below. 18-. (canceled)11. The liquid crystal composition according to claim 10 , comprising at least two compounds represented by general formula (i-2) as the compounds represented by the general formula (i).12. The liquid crystal composition according to claim 9 , comprising a compound represented by general formula (L) below.{'br': None, '[Chem. 12]'}{'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', '(In the formula, Rand Reach independently represents an alkyl group having 1 to 8 carbon atoms, and one or nonadjacent two or more —CH— in the alkyl group may be each independently substituted by —CH═CH—, —C≡C—, —O—, —CO—, —COO—, or —OCO—;'}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{'sub': 2', '2, '(a) a 1,4-cyclohexylene group (one —CH— or nonadjacent two or more —CH— present in the group may be substituted by —O—); and'}(b) a 1,4-phenylene group (one —CH═ or nonadjacent two or more —CH═ present in the group may be substituted by —N═), and the group (a) and the group (b) may be each independently substituted by a cyano group, a fluorine atom, or a chlorine atom;{'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', 'L2', 'L3', 'L3, 'when OL is 2 or 3 and a plurality of Lare present, Lmay be the same or different, and when OL is 2 or 3 and a plurality of Bare present, Bmay be the same or different, the compound represented by the general formula (I-1-1), the compound represented by the general formula (I-1-2), the compound represented by the general formula (IV-1), and the compound represented by the general formula (III) being ...

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Номер записи: 73
25-02-2016 дата публикации

LIQUID CRYSTAL MEDIUM

Номер: US20160053175A1
Автор: LEE Eun-Kyu, LEE Seung-Eun, SONG Dong-Mee
Принадлежит: Merck Patent GmBH

The present invention relates to a liquid crystal (LC) medium comprising a polymerisable compound, one or more compounds of formula Q, and one or more compounds of formula AN1 6. The LC medium according to claim 1 , wherein the one or more polymerisable compounds are of formula I{'br': None, 'sup': a', '1', 'b', '2', 'b, 'sub': 'm', 'R—B—(Z—B)—R\u2003\u2003I'}in which{'sup': a', 'b', '0', '00', '00', '1', '2', 'a', 'b, 'sub': 2', '5', '2, 'Rand Rdenote, on each occurrence identically or differently, and each, independently of one another, P, P-Sp-, H, F, Cl, Br, I, —CN, —NO, —NCO, —NCS, —OCN, —SCN, SFor straight-chain or branched alkyl having 1 to 25 C atoms, in which one or more non-adjacent CHgroups are optionally each replaced, independently of one another, by —C(R)═C(R)—, —C≡C—, —N(R)—, —O—, —S—, —CO—, —CO—O—, —O—CO—, or —O—CO—O— in such a way that O and/or S atoms are not linked directly to one another, and in which one or more H atoms are optionally replaced by F, Cl, Br, I, CN, P or P-Sp-, where, if Band/or Bcontain a saturated C atom, Rand/or Ralso denote a radical which is spiro-linked to said saturated C atom,'}{'sup': a', 'b, 'wherein at least one of the radicals Rand Rdenotes or contains a group P or P-Sp-,'}P denotes, on each occurrence identically or differently, and each, independently of one another, a polymerisable group,Sp denotes, on each occurrence identically or differently, and each, independently of one another, a spacer group or a single bond,{'sup': 1', '2, 'Band Bdenote, on each occurrence identically or differently, and each, independently of one another, an aromatic, heteroaromatic, alicyclic or heterocyclic group, which optionally contains fused rings, and which is unsubstituted, or mono- or polysubstituted by L,'}{'sup': b', '0', '00, 'sub': 2', '2', '2', '2', '2', '2', '2', '2', '2', 'n1', '2', '2', '2', '2', '2', 'n1, 'Zdenotes, on each occurrence identically or differently, and each, independently of one another, —O—, —S—, —CO—, —CO— ...

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Номер записи: 74
22-02-2018 дата публикации

LIQUID CRYSTAL COMPOUND, LIQUID CRYSTAL COMPOSITION, COMPOSITE MATERIAL WITH ENCAPSULATED LIQUID CRYSTAL, AND LIQUID CRYSTAL DISPLAY DEVICE USING SAME

Номер: US20180051210A1
Автор: SASADA Yasuyuki, SAWADA Michiko
Принадлежит:

Shown is a bimesogenic compound having high solubility in a liquid crystal compound, a liquid crystal composition, a chiral dopant, an additive including an antioxidant or an ultraviolet light absorber, and a polymerizable liquid crystal compound, each of which is used in other bimesogenic compounds or a liquid crystal display device, while maintaining desired physical properties. 2. The compound according to claim 1 , wherein claim 1 , in formula (1) claim 1 , MGand MGare represented by formula (IV):{'br': None, 'sup': 1', '1', '2', '2', '3', '3', '4', '4, 'sub': m', 'n', 'q', 'r, '\ue8a0A-Z\ue8a0\ue8a0A-Z\ue8a0\ue8a0A−Z\ue8a0\ue8a0A−Z\ue8a0Rd\u2003\u2003(IV)'}{'sub': 5', '2', '2', '2', '2', '2', '2', '2', '2', '3', '2', '2', '3', '2', '2, 'sup': 1', '2', '3', '4, 'wherein, in formula (IV), Rd is independently —CN, —NCS, —C≡C—CN, —SF, fluorine, chlorine or straight-chain alkyl having 1 to 20 carbons, and in the Rd, at least one piece of —CH— may be replaced by —O—, —S—, —CO— or —SiH—, and at least one piece of —(CH)— may be replaced by —CH═CH— or —C≡C—; 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 in the rings, one piece of —CH— may be replaced by —O—, —S—, —CO— or —SiH—, and at least one piece of —(CH)— may be replaced by —CH═CH— or —CH═N—, and in the rings, at least one piece of hydrogen may be replaced by fluorine, chlorine, —CF, —CHF, —CHF, —OCF, —OCHFor —OCHF;'}{'sup': 1', '2', '3', '4', '1', '2', '3', '4, 'sub': 2', '2', '2', '2, 'Z, Z, Zand Zare independently a single bond or alkylene having 1 to 4 carbons, and in the Z, the Z, the Zand the Z, at least one piece of —CH— may be replaced by —O—, —S—, —CO— or —SiH—, at least one piece of —(CH)— may be replaced by —CH═CH— or —C≡C—, and at least one piece of hydrogen may be replaced by fluorine; and'}m, n, q and r are independently 0 or 1, and a sum of m, n, q and r is 2, 3 ...

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Номер записи: 75
23-02-2017 дата публикации

LIQUID CRYSTALLINE MEDIUM

Номер: US20170051204A1
Автор: Klasen-memmer Melanie, SCHOEN Sabine
Принадлежит: Merck Patent GmBH

The present invention relates to a liquid-crystalline medium based on a mixture of polar compounds having negative dielectric anisotropy (Δ∈), which is distinguished by the fact that it has a value for the ratio γ/Δnin the range 6-45 with a clearing point of >60° C. and a Δ∈ of ≦−2.3. Media of this type are particularly suitable for electro-optical displays having active-matrix addressing based on the ECB, PA LCD, FFS or IPS effect. 2. A liquid-crystalline medium according to claim 1 , which has a clearing point of 60-90° C.3. A liquid-crystalline medium according to claim 1 , which has a Δ∈ value of −2.3 to −5.5.59-. (canceled)10. A liquid-crystalline medium according to claim 1 , which has thresholds (capacitive) in the range 1.8-2.3 V.1317-. (canceled)18. An electro-optical display having active-matrix addressing based on the ECB claim 1 , PA LCD claim 1 , FFS or the IPS effect claim 1 , which contains claim 1 , as dielectric claim 1 , a liquid-crystalline medium according to .25. A liquid-crystalline medium according to claim 24 , wherein when Rdenotes alkenyl claim 24 , said group is CH≡CH claim 24 , CH—CH≡CH claim 24 , CH—CH≡CH claim 24 , CH≡CH—CHor CH—CH≡CH—CH.26. A liquid-crystalline medium according to claim 11 , which comprises10-40% by weight of one or more compounds of the formulae IA and IB, and10-40% by weight of one or more compounds of the formula II.33. A liquid-crystalline medium according to claim 1 , wherein alkenyl and alkenyl* each claim 1 , independently of one another claim 1 , denote vinyl claim 1 , 1E-alkenyl or 3E-alkenyl.34. A liquid-crystalline medium according to claim 1 , wherein Rand Rdenote straight-chain alkyl or straight-chain alkenyl. The present invention relates to a liquid-crystalline medium and to the use thereof in liquid-crystal displays, in particular liquid-crystal displays addressed by means of an active matrix (AMDs or AMLCDs for active matrix addressed liquid crystal displays). Particular preference is given to displays ...

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Номер записи: 76
23-02-2017 дата публикации

LIQUID CRYSTAL COMPOUND HAVING ALKENYL ON BOTH ENDS, LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL DISPLAY DEVICE

Номер: US20170051206A1
Автор: GOTOH YASUYUKI, OKUMURA Kazuo
Принадлежит:

Provided is a liquid crystal compound satisfying at least one of physical properties such as high stability to heat and light, a high clearing point (or high maximum temperature), low minimum temperature of a liquid crystal phase, small viscosity, suitable optical anisotropy, large dielectric anisotropy, a suitable elastic constant and good compatibility with other liquid crystal compounds, a liquid crystal composition containing the compound, and a liquid crystal display device including the composition. 5. The compound according to claim 4 , wherein claim 4 , in formula (1c) claim 4 , b and c are independently 0 or 1; d claim 4 , e and f are independently 0 or 1 claim 4 , and a sum of d claim 4 , e and f is 0 or 1; and Zis —CHCH—.8. A liquid crystal composition claim 1 , comprising a compound according to .13. A liquid crystal display device claim 8 , comprising a 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 present invention relates to a liquid crystal compound having alkenyl at both terminals, a liquid crystal composition that contains the compound, and has a nematic phase, and a liquid crystal display device including the composition.A liquid crystal display device has been widely used for a display of a personal computer, a television and so forth. The device utilizes physical properties such as optical anisotropy and dielectric anisotropy of a liquid crystal compound. As an operating mode of the liquid crystal display device, such a mode exists 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, a fringe field switching (FFS) mode and a polymer sustained alignment (PSA) mode. A liquid ...

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Номер записи: 77
23-02-2017 дата публикации

LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL DISPLAY DEVICE

Номер: US20170051207A1
Автор: OKABE Eiji
Принадлежит:

A liquid crystal composition satisfying at least one of characteristics such as high maximum temperature of a nematic phase, low minimum temperature thereof, large optical anisotropy, large positive dielectric anisotropy and high stability to ultraviolet light, or having suitable balance regarding at least two of the characteristics; and a liquid crystal display device including such a composition and particularly including an encapsulated composition, and a liquid crystal display device serving as a constituent of a display device that allows switching of display between 2D and 3D. The liquid crystal composition contains a specific compound having large optical anisotropy as a first component and a specific compound having large positive dielectric anisotropy as a second component, and may further contain a specific compound having large optical anisotropy and further having high maximum temperature or low minimum temperature as a third component, and the liquid crystal display device includes the composition. 2. The liquid crystal composition according to claim 1 , wherein a proportion of the first component is in the range of 20% by weight to 70% by weight claim 1 , and a proportion of the second component is in the range of 25% by weight to 75% by weight claim 1 , based on a weight of the liquid crystal composition.5. The liquid crystal composition according to claim 3 , wherein a proportion of the at least one compound represented by formula (1-1) is in the range of 10% by weight to 50% by weight based on a weight of the liquid crystal composition.7. The liquid crystal composition according to claim 3 , wherein a proportion of the at least one compound represented by formula (2-1) is in the range of 25% by weight to 70% by weight based on a weight of the liquid crystal composition.10. The liquid crystal composition according to claim 8 , wherein a proportion of the at least one compound represented by formula (2-2) is in the range of from greater than 0% by ...

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Номер записи: 78
25-02-2016 дата публикации

POLYMERISABLE COMPOUNDS AND THE USE THEREOF IN LIQUID-CRYSTAL DISPLAYS

Номер: US20160054602A1
Автор: BARON Eveline, MARTEN Christoph, SCHWEBEL Nico, TONG Qiong
Принадлежит: Merck Patent GmBH

The present invention relates to polymerizable compounds, to processes and intermediates for the preparation thereof, to liquid-crystal (LC) media comprising them, and to the use of the polymerizable compounds and LC media for optical, electro-optical and electronic purposes, in particular in LC displays, especially in LC displays of the polymer sustained alignment type. 2. The compound of claim 1 , wherein R is H or P-Sp.5. The compound according to claim 1 , wherein P is an acrylate claim 1 , methacrylate or oxetane.6. The compound according to claim 1 , wherein Sp claim 1 , and Spand Spif not a single bond claim 1 , are —(CH)— claim 1 , —(CH)—O— claim 1 , —(CH)—CO—O— claim 1 , or —(CH)—O—CO— claim 1 , wherein a is 2 claim 1 , 3 claim 1 , 4 claim 1 , 5 or 6 claim 1 , and the O-atom or the CO-group claim 1 , respectively claim 1 , is connected to the aromatic ring.7. A liquid crystal (LC) medium comprising one or more polymerizable compounds formula I as defined in .8. The LC medium of claim 7 , comprisinga polymerizable component A) comprising one or more polymerizable compounds of formula I, anda liquid-crystalline LC component B) comprising one or more mesogenic or liquid-crystalline compounds.12. The LC medium according to claim 7 , wherein the polymerizable compounds of formula I are polymerized.13. A process of preparing an LC medium of claim 7 , comprising mixing one or more mesogenic or liquid-crystalline compounds claim 7 , with one or more compounds of formula I claim 7 , and optionally with further liquid-crystalline compounds and/or additives.14. An LC display comprising one or more compounds of formula I as defined in .15. The LC display of claim 14 , which is a PSA display.16. The LC display of claim 15 , which is a PS-VA claim 15 , PS-OCB claim 15 , PS-IPS claim 15 , PS-FFS claim 15 , PS-UB-FFS claim 15 , PS-posi-VA or PS-TN display.17. The LC display of claim 15 , comprising two substrates claim 15 , at least one which is transparent to light claim ...

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Номер записи: 79
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: 80
05-03-2015 дата публикации

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

Номер: US20150060733A1
Автор: Kawamura Joji, Kuriyama Takeshi
Принадлежит: DIC CORPORATION

The nematic liquid crystal composition exhibits a positive dielectric anisotropy (Δε), the liquid crystal composition being useful as a liquid crystal display material, and a liquid crystal display element using the same. The liquid crystal composition of the present invention has a large absolute value of dielectric anisotropy thereof and a low viscosity. By using this liquid crystal composition, it is possible to provide a liquid crystal display element which has a high contrast, high-speed responsiveness, and good display quality in which image sticking and display defects are not generated. The liquid crystal display element using the liquid crystal composition is a useful display element which realizes both high-speed response and suppression of display defects. In particular, the liquid crystal display element is useful as a liquid crystal display element for active-matrix driving, and can be applied to, for example, an IPS-type or TN-type liquid crystal display element. 110-. (canceled)15. The nematic liquid crystal composition according to claim 14 , wherein claim 14 , in general formula (I) claim 14 , Rrepresents a linear or branched alkyl group having 1 to 10 carbon atoms and Mrepresents a trans-1 claim 14 ,4-cyclohexylene group or a 1 claim 14 ,4-phenylene group.16. The nematic liquid crystal composition according to claim 15 , wherein the content of the at least one compound represented by general formula (I) is 0.001% to 1% by mass claim 15 , and the content of the at least one compound represented by general formula (II) is 10% to 70% by mass.18. A liquid crystal display element for active-matrix driving claim 17 , the liquid crystal display element comprising the liquid crystal composition according to .19. A liquid crystal display element for an IPS mode claim 17 , an FFS mode claim 17 , or a VA-IPS mode claim 17 , the liquid crystal display element comprising the liquid crystal composition according to .20. A polymer-stabilized mode liquid crystal ...

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Номер записи: 81
03-03-2016 дата публикации

LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL DISPLAY DEVICE USING THE SAME

Номер: US20160060521A1
Автор: IWASHITA Yoshinori, Negishi Makoto
Принадлежит: DIC CORPORATION

There is provided a liquid crystal composition which is suitably used in a liquid crystal display device without impairment of properties inherent in liquid crystal display devices. There is provided a liquid crystal display device in which such a liquid crystal composition is used. There is provided a liquid crystal composition having a negative dielectric anisotropy and containing a compound represented by Formula (I-1) and at least one compound represented by General Formula (II) and also provided a liquid crystal display device in which such a liquid crystal composition is used. 110-. (canceled)12. The liquid crystal composition according to claim 11 , wherein Rin General Formula (II) is an ethyl group.14. The liquid crystal composition according to claim 11 , wherein the amount of the compound represented by Formula (I-1) is in the range of 10 to 23 mass %.18. The liquid crystal composition according to claim 11 , further comprising a reactive monomer.19. A liquid crystal display device comprising the liquid crystal composition according to .20. A liquid crystal display comprising the liquid crystal display device according to . The present invention relates to a liquid crystal composition and liquid crystal display device which are useful for producing a liquid crystal display apparatus or another apparatus.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 VA (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 ...

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Номер записи: 82
03-03-2016 дата публикации

LIQUID CRYSTAL DISPLAY DEVICE

Номер: US20160060522A1
Автор: IWASHITA Yoshinori, Kurisawa Kazuki, OGAWA Shinji
Принадлежит: DIC CORPORATION

There is provided an FFS mode liquid crystal display device that uses a liquid crystal composition which has a negative dielectric anisotropy and can achieve good display properties by being used for FFS mode liquid crystal display devices without degrading the image sticking property of display devices and various properties of liquid crystal display devices, such as dielectric anisotropy, viscosity, nematic phase upper limit temperature, low-temperature nematic phase stability, and γ. The liquid crystal composition contains at least one compound selected from the group of compounds represented by general formula (I) below, at least one compound selected from the group of compounds represented by general formula (II) below, and at least one compound selected from the group of compounds represented by general formula (III) below. 14-. (canceled)7. The liquid crystal display device according to claim 5 , wherein the pixel electrode is a comb-shaped pixel electrode or a pixel electrode having a slit.8. The liquid crystal display device according to claim 5 , wherein the interelectrode distance (R) is 0. The present invention relates to an FFS mode liquid crystal display that uses a nematic liquid crystal composition having a negative dielectric anisotropy and that has a high transmittance and a high aperture ratio.Active matrix liquid crystal display devices are commercially available and used in, for example, portable terminals, liquid crystal televisions, projectors, and computers because of their high display quality. In active matrix liquid crystal display devices, a TFT (thin film transistor), a MIM (metal-insulator-metal), or the like is used in each pixel and a high voltage holding ratio is important for liquid crystal compounds or liquid crystal compositions used in active matrix liquid crystal display devices. Liquid crystal display devices obtained by combination with a VA (vertical alignment) mode, an IPS (in-plane switching) mode, or an OCB (optically ...

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Номер записи: 83
03-03-2016 дата публикации

DEVICE CONTAINING A LIQUID-CRYSTALLINE MEDIUM

Номер: US20160060530A1
Автор: Archetti Graziano, Taugerbeck Andreas
Принадлежит: Merck Patent GmBH

The present invention relates to a temperature-reactive device for the regulation of light transmission, containing a liquid-crystalline medium and a compound of formula I, capable of promoting or inducing homeotropic alignment to the adjacent liquid crystal medium at a given temperature. The invention furthermore relates to a process for the temperature-dependent control of light transmission through a layer of a liquid-crystalline medium. 2. Device according to claim 1 , characterised in that the anchor group AG in formula I denotes —NH claim 1 , —SH claim 1 , —OH or —(CO)OH.3. Device according to claim 1 , characterised in that m in formula I denotes 0.4. Device according to claim 1 , characterised in that the layer of the liquid-crystalline medium is arranged between two substrate layers.5. Device according to claim 1 , characterised in that the total concentration of compounds of formula I ranges from 0.01 to 10% by weight regarding the mixture as a whole.6. Device according to claim 1 , characterised in that it has two or more polarisers claim 1 , at least one of which is arranged on one side of the layer of the liquid-crystalline medium and at least one of which is arranged on the opposite side of the layer of the liquid-crystalline medium.7. Device according to claim 1 , characterised in that the device comprises no alignment layers adjacent to the layer of the liquid-crystalline medium.8. Device according to claim 1 , characterised in that the liquid-crystalline medium is arranged directly adjacent to both substrates layers.9. Device according to claim 1 , characterised in that it has a boundary state A with a transmission Tat a temperature below a boundary temperature θand a boundary state B with a transmission Tat a temperature above a boundary temperature θ claim 1 , whereby:{'br': None, 'sub': A', 'B, 'θ<θand'}{'br': None, 'sub': A', 'B, 'T>T.'}10. Device according to claim 1 , characterised in that the transition between the two boundary states A and B ...

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Номер записи: 84
01-03-2018 дата публикации

LIQUID CRYSTAL COMPOSITION AND A LIQUID CRYSTAL DISPLAY INCLUDING THE SAME

Номер: US20180057741A1
Автор: KIM Min Hee, Kim Tae Ho, Lee Chang Hun, LEE Mi Hwa, Park Kyung Ho, PARK So Youn
Принадлежит:

A liquid crystal display includes a first base substrate, a second base substrate, an electrode part, and a liquid crystal layer. The second base substrate is disposed opposite to the first base substrate. The electrode party is disposed on at least one of the first base substrate and the second base substrate. The liquid crystal layer is disposed between the first base substrate and the second base substrate. The liquid crystal layer includes a liquid crystal composition. The liquid crystal composition includes at least one kind of liquid crystal compounds including a cyclopentadienyl group. 2. The liquid crystal display of claim 1 , wherein the liquid crystal compounds of Formulae 1 to 3 are in an amount of more than 0% by weight to less than or equal to about 40% by weight with respect to the total liquid crystal composition.6. The liquid crystal display of claim 1 , wherein the liquid crystal composition has a positive dielectric anisotropy.7. The liquid crystal display of claim 1 , wherein the liquid crystal layer is driven in a twisted nematic (TN) mode claim 1 , an in-plane switching (IPS) mode claim 1 , a plane-to-line switching (PLS) mode claim 1 , or a fringe field switching (FFS) mode.8. The liquid crystal display of claim 1 , wherein the liquid crystal compounds of Formulae 1 and 2 are in an amount of more than 0% by weight to no less than about 40% by weight with respect t to the total liquid crystal composition.10. The liquid crystal composition of claim 9 , wherein the liquid crystal compounds of Formulae 1 to 3 are in an amount of more than about 0% by weight to less than or equal to about 40% by weight with respect to the total liquid crystal composition.14. The liquid crystal composition of claim 9 , wherein the liquid crystal composition has a positive dielectric anisotropy.15. The liquid crystal composition of claim 9 , wherein the liquid crystal layer is driven in a twisted nematic (TN) mode claim 9 , an in-plane switching (IPS) mode claim 9 , a ...

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Номер записи: 85
01-03-2018 дата публикации

LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL DISPLAY DEVICE

Номер: US20180057742A1
Автор: Saito Masayuki
Принадлежит:

Provided are a liquid crystal composition satisfying at least one of characteristics including a high maximum temperature, a low minimum temperature, small viscosity, suitable optical anisotropy and large negative dielectric anisotropy, or the liquid crystal composition having a suitable balance regarding at least two of the above 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 small viscosity as a second component, and may contain a specific component having high maximum temperature or small viscosity as a third component, a specific component having negative dielectric anisotropy as a fourth component, or a specific compound having a polymerizable group as an additive. 3. The liquid crystal composition according to claim 1 , wherein a proportion of the first component is in the range of about 5% by weight to about 40% by weight claim 1 , and a proportion of the second component is in the range of about 10% by weight to about 60% by weight.6. The liquid crystal composition according to claim 4 , wherein a proportion of the third component is in the range of about 3% by weight to about 40% by weight.10. The liquid crystal composition according to claim 7 , wherein a proportion of the fourth component is in the range of about 10% by weight to about 70% by weight.17. The liquid crystal composition according to claim 11 , wherein a proportion of the additive is in the range of about 0.03% by weight to about 10% by weight.18. A liquid crystal display device claim 1 , including the liquid crystal composition according to .19. The liquid crystal display device according to claim 18 , wherein an operating mode in the liquid crystal display device includes an IPS mode claim 18 , a VA mode claim 18 , an FFS mode or an FPA mode claim 18 , and a driving mode in the liquid crystal display device includes an ...

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Номер записи: 86
01-03-2018 дата публикации

LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL DISPLAY DEVICE

Номер: US20180057744A1
Автор: FURUSATO YOSHIMASA, Saito Masayuki
Принадлежит:

The liquid crystal composition has positive dielectric anisotropy, and contains a compound contributing to high stability to heat or ultraviolet light as an additive component and a specific compound having small viscosity as a first component, and a liquid crystal display device includes the composition, and the composition may contain a specific compound having large positive dielectric anisotropy as a second component, a specific compound having high maximum temperature or small viscosity as a third component, or a specific compound having negative dielectric anisotropy as a fourth component. 3. The liquid crystal composition according to claim 1 , wherein a proportion of the additive component is in the range of 0.005% by weight to 1% by weight claim 1 , and a proportion of the first component is in the range of 5% by weight to 60% by weight claim 1 , based on the weight of the liquid crystal composition.6. The liquid crystal composition according to claim 4 , wherein a proportion of the second component is in the range of 10% by weight to 90% by weight based on the weight of the liquid crystal composition.9. The liquid crystal composition according to claim 7 , wherein a proportion of the third component is in the range of 5% by weight to 60% by weight based on the weight of the liquid crystal composition.12. The liquid crystal composition according to claim 10 , wherein a proportion of the fourth component is in the range of 3% by weight to 25% by weight based on the weight of the liquid crystal composition.13. 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 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.14. A liquid crystal display device claim 1 , including the liquid crystal composition according to .15. The liquid crystal display device according ...

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Номер записи: 87
02-03-2017 дата публикации

LIQUID CRYSTAL DISPLAY DEVICE

Номер: US20170058160A1
Автор: IWASHITA Yoshinori, Kawamura Jouji, ONO Yoshiyuki, Takeda Hiroyuki
Принадлежит: DIC CORPORATION (TOKYO)

The present invention relates to a liquid crystal display device including a particular liquid crystal composition and a cured product of a particular curable resin composition serving as a sealant. 2. The liquid crystal display device according to claim 1 , wherein the curable resin composition further comprises a thermal curing agent.3. The liquid crystal display device according to claim 1 , wherein the curable resin composition further comprises a silane coupling agent.4. The liquid crystal display device according to claim 1 , wherein the curable resin composition further comprises a filler.5. The liquid crystal display device according to claim 1 , wherein the curable resin composition further comprises resin particles.6. The liquid crystal display device according to claim 1 , wherein the curable resin composition has a hydrogen-bonding functional group value of 1×10to 5×10mol/g.7. The liquid crystal display device according to claim 1 , wherein the compound containing at least one epoxy group per molecule and having a weight average molecular weight of 300 to 10 claim 1 ,000 further contains at least one ethylenically unsaturated bond per molecule.8. The liquid crystal display device according to claim 7 , wherein the compound containing at least one epoxy group per molecule and having a weight average molecular weight of 300 to 10 claim 7 ,000 contains at least one (meth)acrylic group per molecule.9. The liquid crystal display device according to claim 8 , wherein the compound containing at least one (meth)acrylic group and at least one epoxy group per molecule is a (meth)acrylic-modified epoxy resin and/or a urethane-modified (meth)acrylic epoxy resin.10. The liquid crystal display device according to claim 1 , wherein the curable resin composition further comprises a compound containing an ethylenically unsaturated bond.11. The liquid crystal display device according to claim 10 , wherein the curable resin composition comprises a compound containing a ( ...

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Номер записи: 88
20-02-2020 дата публикации

Liquid crystal display device and electronic device

Номер: US20200056093A1
Автор: Masanobu Mizusaki, Tsuyoshi Okazaki
Принадлежит: Sharp Corp

A liquid crystal display device includes a pair of substrates, a negative liquid crystal layer held between the pair of substrates, a seal portion held between the pair of substrates and disposed around the liquid crystal layer, and a pair of alignment layers each of which is disposed on a surface, adjacent to the liquid crystal layer, of a corresponding one of the substrates. The negative liquid crystal layer includes a liquid crystal composition including a compound having a functional group represented by the formula (A) below, the seal portion includes a radical polymerization initiator, the alignment layers include a polymer including polyimide, the polyimide is prepared from polyamic acid as a precursor, and the imidization ratio of the polyimide is not less than 60% with respect to the whole polymer. (where X: oxygen radical, hydroxyl group, C 1-20 linear alkyl group, or C 3-20 branched alkyl group, Y1 to Y4: C 1-4 linear alkyl group or C 3-4 branched alkyl group)

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Номер записи: 89
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: 90
12-03-2015 дата публикации

NEMATIC LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL DISPLAY ELEMENT USING SAME

Номер: US20150069296A1
Автор: Hirata Shinichi, Kawakami Shotaro, Kuriyama Takeshi, 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 method, which requires fast response. The liquid crystal composition has negative dielectric anisotropy and a large absolute value thereof, and low viscosity. The liquid crystal composition is chemically stable to heat, light, water, and the like, and is suitable as a liquid crystal composition capable of low-voltage driving and practicable and having high reliability. A liquid crystal display device using the liquid crystal composition can be preferably used for a liquid crystal display device of a VA mode, a PASV mode, a PSA mode, or the like. 3. The liquid crystal composition according to claim 1 , wherein the content of the first component is 5% to 60% by mass claim 1 , and the content of the second component is 2% to 30% by mass.5. The liquid crystal composition according to claim 1 , wherein the content of the third component is 10% to 90% by mass.6. The liquid crystal composition according to claim 1 , wherein dielectric anisotropy Δ∈ at 25° C. is within a range of −2.0 to −6.0 claim 1 , refractive index anisotropy Δn at 25° C. is within a range of 0.08 to 0.13 claim 1 , and a nematic-isotropic liquid phase transition temperature (Tni) is within a range of 60° C. to 120° C.7. The liquid crystal composition according to claim 1 , comprising a polymerizable compound.9. A liquid crystal display device comprising the liquid crystal composition according to .10. A liquid crystal display device for active matrix driving claim 1 , comprising the liquid crystal composition according to .11. A liquid crystal display device for a VA mode claim 1 , a PSA mode claim 1 , a PSVA mode claim 1 , an IPS mode claim 1 , or an ECB mode claim 1 , the liquid crystal display device 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 ...

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Номер записи: 91
12-03-2015 дата публикации

Liquid crystal medium

Номер: US20150070609A1
Автор: Eveline Baron, Julian Vogt, Qiong TONG, Stephan Derow
Принадлежит: Merck Patent GmBH

The present invention relates to a liquid crystal (LC) medium comprising a polymerizable compound, to a process for its preparation, to its use for optical, electro-optical and electronic purposes, in particular in an LC display, especially in an LC display of the PSA (“polymer sustained alignment”) type, and to an LC display comprising the LC medium.

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Номер записи: 92
10-03-2016 дата публикации

LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL DISPLAY DEVICE USING THE SAME

Номер: US20160068751A1
Автор: IWASHITA Yoshinori, Negishi Makoto
Принадлежит:

There is provided a liquid crystal composition having a negative dielectric anisotropy and containing at least one compound represented by General Formula (I) and at least one compound represented by General Formula (II). There is also provided a liquid crystal display device involving use of such a liquid crystal composition having a negative dielectric anisotropy and containing at least one compound represented by General Formula (I) and at least one compound represented by General Formula (II). 19-. (canceled)159. The liquid crystal composition according to claim , further comprising a reactive monomer.169. A liquid crystal display device comprising the liquid crystal composition according to claim .17. A liquid crystal display device comprising the liquid crystal composition according to .18. A liquid crystal display comprising the liquid crystal display device according to . The present invention relates to a liquid crystal composition and liquid crystal display device which are useful for producing a liquid crystal display apparatus or another apparatus.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 VA (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 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 ...

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Номер записи: 93
10-03-2016 дата публикации

LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL DISPLAY ELEMENT USING THE SAME

Номер: US20160068752A1
Автор: IWASHITA Yoshinori, Niwa Masahiro, OGAWA Shinji
Принадлежит: DIC CORPORATION

There is provided a liquid crystal composition suitable for use in a liquid crystal display element that suffers less from drop marks that occur during production without degrading ghosting properties of the display element and various properties of the liquid crystal display element, such as dielectric anisotropy, viscosity, nematic phase upper limit temperature, low-temperature nematic phase stability, and γ, and with which a stable amount of a liquid crystal material can be discharged in an ODF process. A liquid crystal display element that uses the liquid crystal composition is also provided. The present invention relates to a liquid crystal composition having negative dielectric anisotropy and containing a compound represented by formula (I), one or more compounds represented by general formula (II-1), and one or more compounds represented by general formula (II-2). The present invention also relates to a liquid crystal display element that uses the liquid crystal composition. 113-. (canceled)15. The liquid crystal composition according to claim 14 , comprising 20 to 40% by mass of the compounds represented by general formula (II).17. The liquid crystal composition according to claim 16 , comprising 2 to 30% by mass of the compound represented by general formula (IV).19. The liquid crystal composition according to claim 16 , comprising 2 to 30% by mass of the compound represented by general formula (IV) claim 16 , and 2 to 30% by mass of the compound represented by general formula (V).20. The liquid crystal composition according to claim 14 , comprising a reactive monomer.21. A liquid crystal display element that uses the liquid crystal composition according to .22. A liquid crystal display element that uses the liquid crystal composition according to .23. A liquid crystal display that uses the liquid crystal display element according to . The present invention relates to a liquid crystal composition and a liquid crystal display element that are useful as ...

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Номер записи: 94
08-03-2018 дата публикации

LIQUID CRYSTAL DISPLAY PANEL

Номер: US20180066190A1
Автор: HONG Sung Hwan, KIM Mi Suk, Kim Tae Ho, Lee Chang Hun, OH Keun Chan
Принадлежит:

A liquid crystal display (LCD) panel includes a first substrate, a second substrate, and a liquid crystal layer disposed between the first substrate and the second substrate. The liquid crystal layer includes liquid crystals with negative dielectric anisotropy and a hindered amine light stabilizer (HALS). 1. An LCD panel , comprising:a first substrate;a second substrate; anda liquid crystal layer disposed between the first substrate and the second substrate, wherein the liquid crystal layer includes neutral liquid crystals and polarized liquid crystals containing an alkoxy group, and wherein the alkoxy group ranges from 50% to 60% of the total weight of the neutral liquid crystals and the polarized liquid crystals.3. The LCD panel of claim 2 , wherein the polarized liquid crystals include a mixture of the compounds of Formulas (4) and (5). This application is a divisional application of U.S. patent application Ser. No. 14/656,184, filed on Mar. 12, 2015, which claims priority under 35 U.S.C. ∅ 119 to Korean Patent Application No. 10-2014-0136911 filed on Oct. 10, 2014 in the Korean Intellectual Property Office, the disclosure of which is incorporated by reference herein in its entirety.Exemplary embodiments of the present invention relate to a display panel, and more particularly to a liquid crystal display (LCD) panel.Generally, a liquid crystal display (LCD) device includes an LCD panel, which has a first display panel having thin-film transistors (TFTs) formed thereon, a second display panel facing the first display panel, and a liquid crystal layer disposed between the first display panel and the second display panel.A light source may be disposed at the rear of the LCD panel to supply light to the LCD panel. The amount of light emitted from the light source to the LCD panel may vary, for example, depending on the alignment of liquid crystals in the liquid crystal layer.In the LCD device, if a still image is displayed for a long time, the still image may persist ...

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Номер записи: 95
17-03-2016 дата публикации

LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL DISPLAY ELEMENT USING THE SAME

Номер: US20160075945A1
Автор: IWASHITA Yoshinori, Niwa Masahiro
Принадлежит: DIC CORPORATION

An object of the present invention is to provide a liquid crystal composition in which various characteristics of a liquid crystal display element such as a dielectric anisotropy, a viscosity, a nematic phase upper limit temperature, and γ, and a burn-in characteristic of a display element are not deteriorated, dropping mark is unlikely to be generated during preparation, a compound represented by liquid crystal composition Formula (I) suitable for a liquid crystal display element in which a discharging amount of the liquid crystal material stable in an ODF step is realized is contained, and a compound represented by General Formula (II) is contained by equal to or more than 15%, and a liquid crystal display element using the same. 113.-. (canceled)15. The liquid crystal composition according to claim 14 ,wherein the liquid crystal composition comprises the compound represented by General Formula (I) in the range of 10% by mass to 35% by mass.16. The liquid crystal composition according to claim 14 , wherein the liquid crystal composition comprises the compound represented by General Formula (II) in the range of 25% by mass to 40% by mass.17. The liquid crystal composition according to claim 14 ,wherein the liquid crystal composition comprises at least two or more kinds of the compounds represented by General Formula (II).18. The liquid crystal composition according to claim 14 , wherein claim 14 , in General Formula (II) claim 14 , Rrepresents an alkyl group having 3 to 5 carbon atoms or an alkenyl group having 2 to 5 carbon atoms claim 14 , and Rrepresents an alkoxy group having 2 to 4 carbon atoms or an alkenyl group having 3 to 5 carbon atoms.23. A liquid crystal composition claim 14 ,{'claim-ref': {'@idref': 'CLM-00014', 'claim 14'}, 'b': 6', '7', '8', '9, 'wherein the liquid crystal composition comprises the compound represented by Formula (I) according to in a range of 15% by mass to 30% by mass, the compound represented by Formula (II-1) according to claim ...

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Номер записи: 96
17-03-2016 дата публикации

LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL DISPLAY DEVICE USING THE SAME

Номер: US20160075946A1
Автор: IWASHITA Yoshinori, Kawamura Jouji, Negishi Makoto, OGAWA Shinji
Принадлежит:

There is provided a liquid crystal display device that uses such a liquid crystal composition is also provided. Provided is a liquid crystal composition that includes a first component which is at least one selected from the group consisting of compounds represented by general formula (1) and a second component which is at least one component selected from the group consisting of compounds represented by general formula (2). Also provided is a liquid crystal display device that uses a liquid crystal composition that contains the first component and the second component. 110-. (canceled)13. The composition according to claim 11 , wherein Rrepresents an alkyl group having 1 to 15 carbon atoms and Rrepresents an alkoxy group having 1 to 15 carbon atoms.16. The liquid crystal composition according to claim 11 , further comprising a polymerizable monomer.17. A liquid crystal display device that uses the liquid crystal composition according to .18. A liquid crystal display comprising the liquid crystal display device according to . The present invention relates to a liquid crystal composition and a liquid crystal display device that uses the 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 VA (hereinafter may be referred to as vertical alignment) mode and IPS (in-plane switching) mode that use TFTs (thin film transistors). Liquid crystal compositions that are used in these liquid crystal display devices are required to be stable against external factors 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 ...

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Номер записи: 97
17-03-2016 дата публикации

Nematic liquid crystal composition and liquid crystal display element using same

Номер: US20160075947A1
Автор: Go Sudo, Shotaro Kawakami
Принадлежит: DIC Corp

The present invention relates to a nematic liquid crystal composition with negative dielectric anisotropy (Δ∈) useful as a liquid crystal display material, and to a liquid crystal display device using the composition. The liquid crystal composition of the present invention provides a liquid crystal composition that has sufficiently low viscosity (η), sufficiently low rotational viscosity (γ1), high elastic modulus (K 33 ), and negative dielectric anisotropy (Δ∈) with a large absolute value without decreasing the refractive index anisotropy (Δn) and nematic phase-isotropic liquid phase transition temperature (T ni ). A liquid crystal display device of VA-mode or the like that uses this composition is also provided, which has less or no display failures. The liquid crystal display device that uses the liquid crystal composition of the present invention is useful as an active-matrix-driving liquid crystal display device and can be used as a liquid crystal display device of VA-mode PSVA-mode, or the like.

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Номер записи: 98
17-03-2016 дата публикации

LIQUID CRYSTAL DISPLAY DEVICE

Номер: US20160075948A1
Автор: Funakura Seiji, IWASHITA Yoshinori, OGAWA Shinji, Shimada Katsunori
Принадлежит: DIC CORPORATION

There is provided a liquid crystal display device which prevents a decrease in the voltage holding ratio (VHR) of a liquid crystal layer and an increase in ion density (ID) therein and which overcomes problems of defective display such as dropouts, uneven alignment, and screen burn-in. The liquid crystal display device of the present invention prevents a decrease in the voltage holding ratio (VHR) of a liquid crystal layer and an increase in ion density (ID) therein and reduces defective display such as screen burn-in; hence, such a liquid crystal display device is properly used as liquid crystal display devices of a VA mode and PSVA mode which involve active matrix driving and can be applied to liquid crystal display devices of liquid crystal TV sets, monitors, mobile phones, and smartphones. 118-. (canceled)20. The liquid crystal display device according to claim 19 , wherein in the RGB three-color pixel portions claim 19 , the G pixel portion contains a colorant that is at least one selected from the group consisting of a halogenated metallophthalocyanine pigment claim 19 , a green phthalocyanine dye claim 19 , and a mixture of a blue phthalocyanine dye and a yellow organic azo dye claim 19 , and the B pixel portion contains a colorant that is at least one selected from the group consisting of a ∈-copper phthalocyanine pigment claim 19 , a triarylmethane pigment claim 19 , and a blue cationic organic dye.21. The liquid crystal display device according to claims 19 , wherein the R pixel portion contains a pigment derivative.22. The liquid crystal display device according to claim 19 , wherein the R pixel portion contains at least one selected from a quinacridone-based pigment derivative claim 19 , a diketopyrrolopyrrole-based pigment derivative claim 19 , an anthraquinone-based pigment derivative claim 19 , and a thiazine-based pigment derivative.23. The liquid crystal display device according to claim 19 , wherein the G pixel portion of the RGB three-color pixel ...

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Номер записи: 99
16-03-2017 дата публикации

LIQUID CRYSTALLINE MEDIUM

Номер: US20170073580A1
Автор: Klasen-memmer Melanie, SCHOEN Sabine
Принадлежит: Merck Patent GmBH

The present invention relates to a liquid-crystalline medium based on a mixture of polar compounds having negative dielectric anisotropy (Δ∈), which is distinguished by the fact that it has a value for the ratio γ/Δnin the range 6-45 with a clearing point of >60° C. and a Δ∈ of ≦−2.3. Media of this type are particularly suitable for electro-optical displays having active-matrix addressing based on the ECB, PA LCD, FFS or IPS effect. 2. A liquid-crystalline medium according to claim 1 , which has a Δ∈ clearing point of 60-90° C.3. A liquid-crystalline medium according to claim 1 , which has a Δ∈ value of −2.3 to −5.5.10. A liquid-crystalline medium according to claim 1 , which has thresholds (capacitive) in the range 1.8-2.3 V.13. A liquid-crystalline medium according to claim 11 , which comprises one claim 11 , two claim 11 , three claim 11 , four claim 11 , five or six compounds of the formulae IA claim 11 , IB and/or II.14. A liquid-crystalline medium according to claim 11 , wherein the proportion of compounds of the formulae IA and/or IB in the mixture as a whole is at least 10% by weight.15. A liquid-crystalline medium according to claim 11 , wherein the proportion of compounds of the formula II in the mixture as a whole is at least 10% by weight.16. A liquid-crystalline medium according to claim 12 , wherein the proportion of compounds of the formula III in the mixture as a whole is at least 5% by weight.17. A liquid-crystalline medium according to claim 11 , which essentially consists of10-40% by weight of one or more compounds of the formulae IA and IBand10-40% by weight of one or more compounds of the formula II.18. An electro-optical display having active-matrix addressing based on the ECB claim 1 , PA LCD claim 1 , FFS or the IPS effect claim 1 , which contains claim 1 , as dielectric claim 1 , a liquid-crystalline medium according to .20. A liquid-crystalline medium according to claim 1 , which contains as a compound of formula PP-n-m wherein n is 1 and m ...

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Номер записи: 100