公开(公告)号：US06495218B1

公开(公告)日：2002-12-17

申请号：US09555955

申请日：2000-06-07

申请人： Hitoshi Yamamoto ,  Kanetsugu Terashima ,  Hiroaki Kawashukuda

发明人： Hitoshi Yamamoto ,  Kanetsugu Terashima ,  Hiroaki Kawashukuda

IPC分类号： C09K1930

CPC分类号： C09K19/42 ,  C09K19/44 ,  C09K19/46 ,  C09K2019/0448 ,  C09K2019/0451 ,  Y10T428/10

摘要： Provided is a liquid crystal medium for an electro-optical liquid crystal display of an IPS mode which does not cause burning and which is suitable for achieving a relatively low threshold voltage and a short response time. The liquid crystal medium for an IPS mode display comprising 5 to 37.5% by weight of the first component (compound of Formula I) and 5 to 62.5% by weight of the second component (compound of Formula II) or the liquid crystal medium comprising 100% by weight of the first component, 5 to 62.5% by weight of the second component and 5 to 37.5% by weight of third component (compound of Formula III): wherein R1 to R3 represent a C1 to C10 alkyl group, an alkoxy group or an oxalkyl group (containing 1 to 4 oxygen atoms), or a C2 to C10 alkenyl group; X represents transcyclohexylene or phenylene; A represents —CO—O— or a single bond; and Y1 represents a hydrogen atom or a fluorine atom.

摘要翻译： 本发明提供一种IPS模式的电光液晶显示器的液晶介质，其不引起燃烧，适合于实现相对低的阈值电压和较短的响应时间。用于IPS模式显示器的液晶介质包括 5至37.5重量％的第一组分（式I化合物）和5至62.5重量％的第二组分（式II化合物）或包含100重量％的第一组分的液晶介质5至 62.5重量％的第二组分和5-37.5重量％的第三组分（式III化合物）：其中R1至R3表示C1至C10烷基，烷氧基或氧代烷基（含有1至4个氧 原子）或C2〜C10烯基; X表示反式环亚己基或亚苯基; A表示-CO-O-或单键; Y 1表示氢原子或氟原子。

公开(公告)号：US5108651A

公开(公告)日：1992-04-28

申请号：US285521

申请日：1988-12-16

申请人： Kanetsugu Terashima ,  Mitsuyoshi Ichihashi ,  Makoto Kikuchi ,  Fusayuki Takeshita ,  Kenji Furukawa

发明人： Kanetsugu Terashima ,  Mitsuyoshi Ichihashi ,  Makoto Kikuchi ,  Fusayuki Takeshita ,  Kenji Furukawa

IPC分类号： C09K19/20 ,  C09K19/30 ,  C09K19/44 ,  C09K19/46 ,  G02F1/137 ,  G02F1/141

CPC分类号： C09K19/46 ,  C09K19/3068 ,  C09K19/44

摘要： A ferroelectric liquid crystal composition having a negative large dielectric anisotropy value, AC stabilizing effect at low voltages and yet high-speed response properties, and a light switching element using the composition are provided, which composition comprises at least two components at least one of which is a compound expressed by the formula ##STR1## wherein R.sup.3 and R.sup.4 each represent the same or different linear or branched alkyl group of 1-18C and l is 1 or 2, and having a negative dielectric anisotropy value.A preferred embodiment of the above composition contains at least three components A, B and C, one of which is the above compound of the formula (A) and components B and C of which are each selected from a group of specified compounds, and the respective proportions of components A, B and C being 5-50 weight %, 20-70 weight % and 5-40 weight % based on the total weight of the three, respectively.

公开(公告)号：US5102576A

公开(公告)日：1992-04-07

申请号：US608739

申请日：1990-11-05

申请人： Kanetsugu Terashima ,  Makoto Kikuchi ,  Katsuyuki Murashiro

发明人： Kanetsugu Terashima ,  Makoto Kikuchi ,  Katsuyuki Murashiro

IPC分类号： G02F1/13 ,  C09K19/34 ,  C09K19/42 ,  C09K19/44 ,  C09K19/46

CPC分类号： C09K19/46 ,  C09K19/3441 ,  C09K19/42 ,  C09K19/44

摘要： A ferroelectric liquid crystal composition comprising achiral smectic liquid crystal compounds(s) and optically active compounds and, which composition comprises the following components A, B and C in 50-91%, 4-30% and 5-20%, each by weight, respectively:Component A: at least one of compounds of the formula (A) having smectic C phase ##STR1## R.sup.1 and R.sup.2 each are same or different, linear or branched alkyl, alkoxy or alkanoyloxy each of 1-18 C, X is H, halogen or CN, l, m and n each one 1 or 2 and the sum of l, m and n is 1 or 2,component B: at least one of optically active compounds of the formula (B): ##STR2## and component C: at least one of optically active compounds of the formula ##STR3## wherein each R.sup.3 and R.sup.5 is a linear or branched alkyl or alkoxy of 1-18C, each R.sup.4 and R.sup.6 is a linear or branched alkyl of 2-18C or a linear or branched alkoxy of 1-18C, each Y and Z is H, halogen or CN k is 0 or 1 and * is asymmetric C, the compounds having the same sense of Ps in chiral smectic C phase, induced when dissolved in smectic C liquid crystal.

公开(公告)号：US5053163A

公开(公告)日：1991-10-01

申请号：US359719

申请日：1989-05-31

申请人： Fusayuki Takeshita ,  Makoto Kikuchi ,  Mitsuyoshi Ichihashi ,  Kanetsugu Terashima ,  Kenji Furukawa

发明人： Fusayuki Takeshita ,  Makoto Kikuchi ,  Mitsuyoshi Ichihashi ,  Kanetsugu Terashima ,  Kenji Furukawa

IPC分类号： C07D237/08 ,  C07D237/14 ,  C09K19/34 ,  C09K19/42 ,  C09K19/46 ,  G02F1/137 ,  G02F1/141

CPC分类号： C09K19/46 ,  C09K19/3455 ,  C09K19/42

摘要： A ferroelectric liquid crystal composition having a negative dielectric anisotropy, a good AC-stabilizing effect and still high-speed response properties, and a light switching element, are provided, which composition comprises a compound expressed by the formula ##STR1## wherein R.sup.1 and R.sup.2 each represent a linear or branched alkyl group, alkoxy group, alkanoyloxy group, alkoxycarbonyl group, alkoxycarbonyloxy group or alkanoyl group each of 1 to 18 carbon atoms; ##STR2## X.sub.1, X.sub.2 and X.sub.3 each represent hydrogen atom or halogen atom; P and Q each represent 0 or 1; and P+Q is 0 or 1.

公开(公告)号：US5919397A

公开(公告)日：1999-07-06

申请号：US850866

申请日：1997-05-02

申请人： Mitsuyoshi Ichihashi ,  Kanetsugu Terashima ,  Makoto Kikuchi ,  Fusayuki Takeshita ,  Kenji Furakawa

发明人： Mitsuyoshi Ichihashi ,  Kanetsugu Terashima ,  Makoto Kikuchi ,  Fusayuki Takeshita ,  Kenji Furakawa

IPC分类号： G02F1/137 ,  C09K19/20 ,  C09K19/42 ,  C09K19/44 ,  C09K19/46 ,  G02F1/13 ,  G02F1/141 ,  C09K19/12 ,  C09K19/52

CPC分类号： C09K19/2021

摘要： A ferroelectric liquid crystal composition exhibiting a novel chiral smectic phase is disclosed. In this novel phase, a director of liquid crystal molecules may settle in a third stable state which is distinguished from known bistable states of liquid crystal molecules in a ferroelectric chiral smectic C phase. By using this composition in a display element, a dichromatic display having a quick response can be provided on a third-colored display ground by applying a controlled electric field across the composition.

摘要翻译： 公开了具有新型手性近晶相的铁电液晶组合物。 在这个新颖的阶段，液晶分子的导向器可以沉淀在与铁电手性近晶C相中液晶分子的已知双稳态不同的第三稳定状态。 通过在显示元件中使用该组合物，通过在组合物上施加受控电场，可以在第三色显示器地面上提供具有快速响应的二色显示器。

公开(公告)号：US5779933A

公开(公告)日：1998-07-14

申请号：US663226

申请日：1996-06-17

申请人： Kanetsugu Terashima ,  Fusayuki Takeshita ,  Hitoshi Yamamoto ,  Hiroaki Kawasyukuda

发明人： Kanetsugu Terashima ,  Fusayuki Takeshita ,  Hitoshi Yamamoto ,  Hiroaki Kawasyukuda

IPC分类号： C09K19/42 ,  C09K19/44 ,  C09K19/46 ,  C09K19/52 ,  G02F1/13

CPC分类号： C09K19/46 ,  C09K19/42 ,  C09K19/44

摘要： A liquid crystal composition which comprises 1 to 15% of a first component (a compound selected from compounds of the formulae I-a and I-b), 8 to 40% of a second component (a compound of the formula II), 10 to 30% of a third component (a compound of the formula III), and 10 to 45% of a fourth component (a compound selected from compounds of the formulae IV-a, IV-b, IV-c and IV-d) ##STR1## wherein each of R.sup.1, R.sup.2, R.sup.8 and R.sup.12 is a C.sub.1 -C.sub.10 alkyl group, R.sup.3 is a C.sub.1 -C.sub.10 alkyl group or a C.sub.2 -C.sub.10 alkenyl group, each of R.sup.4, R.sup.7 and R.sup.11 is a C.sub.1 -C.sub.10 alkyl group or alkoxy group, each of R.sup.5 and R.sup.9 is a C.sub.2 -C.sub.10 alkenyl group or alkenyloxy group, each of R.sup.6 and R.sup.10 is a C.sub.2 -C.sub.10 alkenyl group, and R.sup.13 is a C.sub.2 -C.sub.10 alkoxyalkyl group.

摘要翻译： PCT No.PCT / JP96 / 00193 Sec。 371日期1996年6月17日第 102（e）1996年6月17日PCT PCT 1996年2月1日PCT公布。 WO96 / 34071 PCT出版物 日期：1996年10月31日一种液晶组合物，其包含1至15％的第一组分（选自式Ia和Ib的化合物的化合物），8至40％的第二组分（式II的化合物） 10至30％的第三组分（式III的化合物）和10至45％的第四组分（选自式IV-a，IV-b，IV-c和IV-d的化合物 （IV）图像（IV）图像（IV）图像（IV）图像（IV）图像（IV-a）<图像>（IV） （IV-d）其中R 1，R 2，R 8和R 12各自为C 1 -C 10烷基，R 3为C 1 -C 10烷基或C 2 -C 10链烯基，R 4，R 7和R 11各自为 C1-C10烷基或烷氧基，R5和R9各自为C2-C10烯基或烯氧基，R6和R10各自为C2-C10烯基，R13为C2-C10烷氧基烷基。

公开(公告)号：US5358662A

公开(公告)日：1994-10-25

申请号：US68952

申请日：1993-05-28

申请人： Taku Hirose ,  Kanetsugu Terashima ,  Shinichi Sawada

发明人： Taku Hirose ,  Kanetsugu Terashima ,  Shinichi Sawada

IPC分类号： C09K19/30 ,  C09K19/42 ,  G02F1/13 ,  C09K19/12 ,  C09K19/52

CPC分类号： C09K19/3048 ,  C09K19/3001

摘要： A liquid crystal composition comprising (1) at least one compound selected from those expressed by the formula (I) and (2) at least one compound selected from those expressed by the formulas (II), (III), (IV) and (V): ##STR1## wherein R.sub.1 to R.sub.5 are C.sub.1-10 alkyl; R.sub.6 and R.sub.7 are C.sub.1-10 alkyl or alkenyl; X is H or F; X.sub.1 and X.sub.2 are F, --CF.sub.3, --OCF.sub.3, --CHF.sub.2 or --OCHF.sub.2 ; Y.sub.1 and Y.sub.2 are H or F; Z.sub.1, Z.sub.2 and Z.sub.4 are --COO--, --CH.sub.2 CH.sub.2 -- or a single bond; Z.sub.3, Z.sub.5 and Z.sub.6 are --COO--, --CH.sub.2 CH.sub.2 --, --C.tbd.C-- or a single bond; and A is ##STR2## which composition is provided with characteristics of high specific resistance, low viscosity while keeping small current consumption, a suitable clearing point and threshold voltage.

摘要翻译： 一种液晶组合物，其包含（1）选自由式（I）和（2）表示的化合物中的至少一种化合物至少一种选自式（II），（III），（IV）和（IV） （I）其中R 1至R 5为C 1-10烷基; R6和R7是C1-10烷基或烯基; X为H或F; X 1和X 2是F，-CF 3，-OCF 3，-CHF 2或-OCHF 2; Y1和Y2是H或F; Z 1，Z 2和Z 4是-COO - ， - CH 2 CH 2 - 或单键; Z 3，Z 5和Z 6是-COO - ， - CH 2 CH 2 - ， - C 3 D C或单键; 并且A是，该组合物具有高电阻率，低粘度特性，同时保持小的电流消耗，合适的清除点和阈值电压。

公开(公告)号：US5149461A

公开(公告)日：1992-09-22

申请号：US733183

申请日：1991-07-19

申请人： Kanetsugu Terashima ,  Mitsuyoshi Ichihashi ,  Makoto Kikuchi ,  Fusayuki Takeshita ,  Kenji Furukawa

发明人： Kanetsugu Terashima ,  Mitsuyoshi Ichihashi ,  Makoto Kikuchi ,  Fusayuki Takeshita ,  Kenji Furukawa

IPC分类号： C09K19/04 ,  C09K19/34 ,  C09K19/46

CPC分类号： C09K19/46 ,  C09K19/04 ,  C09K19/3441

摘要： A ferroelectric liquid crystal composition is here provided which contains at least one chiral compound having an optical activity site group represented by the general formula (I) ##STR1## wherein R.sup.1 is a straight-chain or branched alkyl group or alkoxy group having 1 to 18 carbon atoms, and * indicates an asymmetric carbon atom, and at least one non-chiral compound having a smectic C phase, a smectic I phase, a smectic F phase, a smectic G phase, a smectic H phase, a smectic J phase or a smectic K phase. This composition has quick response properties and assumes an SC* phase in an extensive temperature range inclusive of room temperature. Furthermore, by using this composition, an optical switching element having quick responsiveness can be obtained.

摘要翻译： 这里提供一种铁电液晶组合物，其含有至少一种具有由通式（I）表示的光学活性位点基团的手性化合物，其中R1是直链或支链烷基或具有 1〜18个碳原子，*表示不对称碳原子，以及至少一种具有近晶C相，近晶I相，近晶F相，近晶G相，近晶H相，近晶相的非手性化合物 J相或近晶相。 该组合物具有快速的响应特性并且在包括室温的广泛温度范围内呈现SC *相。 此外，通过使用该组合物，可以获得具有快速响应性的光学开关元件。

公开(公告)号：US5106531A

公开(公告)日：1992-04-21

申请号：US476878

申请日：1990-02-07

申请人： Katsuyuki Murashiro ,  Makoto Kikuchi ,  Mitsuyoshi Ichihashi ,  Kanetsugu Terashima ,  Masaharu Seki

发明人： Katsuyuki Murashiro ,  Makoto Kikuchi ,  Mitsuyoshi Ichihashi ,  Kanetsugu Terashima ,  Masaharu Seki

IPC分类号： G02F1/137 ,  C09K19/34 ,  C09K19/42 ,  C09K19/46 ,  G02F1/13 ,  G02F1/141

CPC分类号： C09K19/3458

摘要： The present invention provides a ferroelectric liquid crystal composition which can exhibit an S.sub.C * phase in an extensive temperature range inclusive of room temperature and which has quick response properties and a large tilt angle, and it also provides a switching element containing the above-mentioned ferroelectric liquid crystal composition and having excellent response properties.The present invention is connected with a ferroelectric liquid crystal composition comprising at least one component A and at least one component B described hereinafter, the content of said component A being from 30 to 95% by weight, the content of said component B being from 5 to 50% by weight,said component A being a compound represented by the formula (I) ##STR1## wherein R.sup.1 is an alkoxy group having 3 to 14 carbon atoms, k is an integer of 1 and R.sup.2 is an optically active group,said component B being a ferroelectric liquid crystal compound having a spontaneous polarization of 10 nCcm.sup.-2 or more.

公开(公告)号：US5021190A

公开(公告)日：1991-06-04

申请号：US408500

申请日：1989-08-25

申请人： Makoto Kikuchi ,  Kanetsugu Terashima ,  Mitsuyoshi Ichihashi ,  Fusayuki Takeshita ,  Kenji Furukawa

发明人： Makoto Kikuchi ,  Kanetsugu Terashima ,  Mitsuyoshi Ichihashi ,  Fusayuki Takeshita ,  Kenji Furukawa

IPC分类号： C09K19/42 ,  C09K19/46 ,  G02F1/137 ,  G02F1/141

CPC分类号： C09K19/46 ,  C09K19/42

摘要： The present invention relates to a ferroelectric liquid crystal composition having quick response and comprising a smectic liquid crystal compound and an optically active compound.The ferroelectric liquid crystal composition comprises components A and B, said component A comprising a compound represented by the formula: ##STR1## and/or a compound represented by the formula: ##STR2## said component B comprising a compound represented by the formula: ##STR3## and/or a compound represented by the formula: ##STR4## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.5 are each an alkyl or alkoxy group of 1 to 18 carbon, R.sup.4 and R.sup.6 are each an alkyl group of 2 to 18 carbon atoms or an alkoxy group of 1 to 18 carbon atoms, X and Y are each --CH.sub.2 O--, --OCH.sub.2 --, ##STR5## m, n, k and l are each an integer of 1 or 2 and * is an asymmetric carbon atom, the component A to component B ratio being 1.5 or less. This ferroelectric liquid crystal composition can be used in a light switching element for the purpose of imparting quick response to the light switching element.