公开(公告)号：US5119219A

公开(公告)日：1992-06-02

申请号：US543415

申请日：1990-06-26

申请人： Masahiro Terada ,  Masataka Yamashita ,  Shosei Mori ,  Shinichi Nakamura ,  Kenji Shinjo ,  Kazuharu Katagiri

发明人： Masahiro Terada ,  Masataka Yamashita ,  Shosei Mori ,  Shinichi Nakamura ,  Kenji Shinjo ,  Kazuharu Katagiri

IPC分类号： G02F1/13 ,  C09K19/02 ,  G02F1/133 ,  G09G3/18 ,  G09G3/36

CPC分类号： C09K19/02 ,  G09G3/3629 ,  G09G2310/06 ,  G09G2320/041

摘要： A liquid crystal apparatus includes a chiral smectic liquid crystal showing a first and a second orientation state disposed between first and second electrodes of a liquid cell. A drive circuit applies voltages between the first and second electrodes including voltages .vertline.V.sub.S .vertline. and .vertline.V.sub.I .vertline. which provide voltages V.sub.A and V.sub.B (V.sub.B V.sub.A) satisfying the relationship of: .vertline.(V.sub.A -V.sub.B)/(V.sub.A +V.sub.B).vertline.>0.1 at 40.degree. C. V.sub.A is a minimum peak value of a voltage .vertline.V.sub.S .vertline.+.vertline.V.sub.I .vertline. (at a constant pulse width) capable of inverting the first orientation state of the chiral smectic liquid crystal into the second orientation state when a voltage pulse is applied between the first and second electrodes to cause the first orientation state of the chiral smectic liquid crystal and then the voltage .vertline.V.sub.S .vertline.+.vertline.V.sub.I .vertline. is applied between the first and second electrodes as a combination of a voltage .vertline.V.sub.S .vertline. applied to the first electrode and a voltage - V.sub.I .vertline. applied to the second electrode V.sub.B is a value of .vertline.V.sub.S .vertline.+.vertline.V.sub.I .vertline. calculated based on a maximum peak value of a voltage .vertline.V.sub.S .vertline.-.vertline.V.sub.I .vertline. capable of maintaining the first orientation state of the chiral smectic liquid crystal when a voltage pulse is applied between the first and second electrodes to cause the first orientation state and then the voltage .vertline.V.sub.S .vertline.-.vertline.V.sub.I .vertline. is applied between the first and second electrodes as a combination of a voltage .vertline.V.sub.S .vertline. applied to the first electrode and a voltage .vertline.V.sub.I .vertline. applied to the second electrode.

公开(公告)号：US5268123A

公开(公告)日：1993-12-07

申请号：US834389

申请日：1992-02-12

申请人： Shosei Mori ,  Masataka Yamashita ,  Kazuharu Katagiri ,  Kenji Shinjo ,  Masahiro Terada

发明人： Shosei Mori ,  Masataka Yamashita ,  Kazuharu Katagiri ,  Kenji Shinjo ,  Masahiro Terada

IPC分类号： C09K19/34 ,  C09K19/42 ,  C09K19/44 ,  C09K19/46 ,  G02F1/13 ,  C09K19/32

CPC分类号： C09K19/46 ,  C09K19/348 ,  C09K19/3491 ,  C09K19/3497 ,  C09K19/42 ,  C09K19/44

摘要： A liquid crystal composition, comprising: at least one mesomorphic compound represented by the following formula (I): ##STR1## and at least one mesomorphic compound represented by the following formula (II):R.sup.3 --X.sup.3 --A.sup.2 --B--A.sup.3 --X.sup.4 --R.sup.4(II),The liquid crystal composition is easily aligned by a simple rubbing method to provide a uniform monodomain and further provides wider driving voltage and temperature margins effective for providing a practical ferroelectric liquid crystal device.

公开(公告)号：US5328640A

公开(公告)日：1994-07-12

申请号：US040392

申请日：1993-03-30

申请人： Kenji Shinjo ,  Takao Takiguchi ,  Hiroyuki Kitayama ,  Kazuharu Katagiri ,  Masahiro Terada ,  Takeshi Togano ,  Masataka Yamashita ,  Takashi Iwaki ,  Shosei Mori

发明人： Kenji Shinjo ,  Takao Takiguchi ,  Hiroyuki Kitayama ,  Kazuharu Katagiri ,  Masahiro Terada ,  Takeshi Togano ,  Masataka Yamashita ,  Takashi Iwaki ,  Shosei Mori

IPC分类号： C07D271/10 ,  C07D285/12 ,  C09K19/34 ,  C09K19/42 ,  C09K19/46 ,  G02F1/13

CPC分类号： C07D271/10 ,  C07D285/12 ,  C09K19/345 ,  C09K19/3455 ,  C09K19/3463 ,  C09K19/348 ,  C09K19/3497 ,  C09K19/42 ,  C09K19/46

摘要： A ferroelectric chiral smectic liquid crystal composition, comprising at least one compound represented by the following formula (I): ##STR1## wherein R.sub.1 and R.sub.2 respectively denote a linear or branched alkyl group having 1-18 carbon atoms capable of having a substituent, at least one of R.sub.1 and R.sub.2 being optically active; and X.sub.1 denotes a single bond, --O--, ##STR2## and at least one compound represented by the following formula (II): ##STR3## wherein R.sub.3 and R.sub.4 respectively denote a linear or branched alkyl group having 1-18 carbon atoms capable of having a substituent; X.sub.2 and X.sub.3 respectively denote a single bond, --O--, ##STR4## and m and n are respectively 0, 1 or 2 with proviso that m+n=2 or more.

摘要翻译： 一种铁电手性近晶液晶组合物，其包含至少一种由下式（I）表示的化合物：其中R 1和R 2分别表示具有1-18个碳原子的直链或支链烷基，其能够具有 取代基，R1和R2中的至少一个是光学活性的; 并且X 1表示单键，-O-，和由下式（II）表示的至少一种化合物：其中R 3和R 4分别表示具有1-18个碳原子的直链或支链烷基 能够具有取代基的碳原子; X2和X3分别表示单键，-O-，，m和n分别为0,1或2，条件是m + n = 2或更大。

公开(公告)号：US5262083A

公开(公告)日：1993-11-16

申请号：US833156

申请日：1992-02-10

申请人： Shosei Mori ,  Masataka Yamashita ,  Kazuharu Katagiri ,  Kenji Shinjo ,  Masahiro Terada

发明人： Shosei Mori ,  Masataka Yamashita ,  Kazuharu Katagiri ,  Kenji Shinjo ,  Masahiro Terada

IPC分类号： C09K19/34 ,  C09K19/42 ,  C09K19/44 ,  C09K19/46 ,  G02F1/13 ,  C09K19/32

CPC分类号： C09K19/3491 ,  C09K19/3477 ,  C09K19/3497 ,  C09K19/42 ,  C09K19/44 ,  C09K19/46

摘要： A liquid crystal composition, comprising: at least one mesomorphic compound represented by the following formula (I):R.sup.1 --X.sup.1 --A.sup.1 --B--A.sup.2 --X.sup.2 --R.sup.2(I)and at least one mesomorphic compound represented by the following formula (II): ##STR1## The liquid crystal composition is easily aligned by a simple rubbing method to provide a uniform monodomain and further provides wider driving voltage and temperature margins effective for providing a practical ferroelectric liquid crystal device.

公开(公告)号：US5250218A

公开(公告)日：1993-10-05

申请号：US836964

申请日：1992-02-19

申请人： Shosei Mori ,  Masataka Yamashita ,  Kazuharu Katagiri ,  Kenji Shinjo ,  Masahiro Terada

发明人： Shosei Mori ,  Masataka Yamashita ,  Kazuharu Katagiri ,  Kenji Shinjo ,  Masahiro Terada

IPC分类号： C09K19/34 ,  C09K19/42 ,  C09K19/44 ,  C09K19/46 ,  G02F1/13 ,  G09G3/36 ,  C09K19/30

CPC分类号： C09K19/42 ,  C09K19/3491 ,  C09K19/3497 ,  C09K19/44 ,  C09K19/46

摘要： A liquid crystal composition, comprising: at least one mesomorphic compound represented by the following formula (I): ##STR1## wherein R.sup.1 and R.sup.2 independently denote a linear or branched alkyl group having 1-18 carbon atoms capable of including one or non-neighboring two or more methylene groups which can be replaced with at least one species of --O--, --CO--, --COO--, --OCO--, --OCOO-- or --CH(X)-- with the proviso that --O-- cannot directly be connected to --O-- and X denotes halogen; Z.sup.1 denotes --COO-- or --CH.sub.2 O--; X.sup.1 and X.sup.2 independently denote a single bond, --O--, --COO--, --OCO--, --CO-- or --OCOO--; A.sup.1 denotes a single bond, ##STR2## Y.sup.1 and Y.sup.2 independently denote hydrogen, halogen, --CH.sub.3 -- or CF.sub.3 --; and at least one mesomorphic compound represented by the following formula (II): ##STR3## wherein R.sup.3 and R.sup.4 independently denote a linear or branched alkyl group having 1-18 carbon atoms capable of including one or non-neighboring two or more methylene groups which can be replaced with at least one species of --O--, --CO--, --COO--, --OCO--, --OCOO-- or --CH(X)-- with the proviso that --O-- cannot directly be connected to --O-- and X denotes halogen; X.sup.3 and X.sup.4 independently denotes a single bond, --O--, --COO--, --OCO-- or --CO--; Z.sup.2 denotes a single bond, --COO-- or --OCO--; A.sup.2, A.sup.3 and A.sup.4 independently denote a single bond, ##STR4## Y.sup.3 and Y.sup.4 independently denote hydrogen, halogen, --CH.sub.3 or --CF.sub.3 ; and k is 0 or 1 with the proviso that X.sup.3 is a single bond when A.sup.2 is a single bond, and X.sup.4 is a single bond when A.sup.3 is a single bond and k is 0. The liquid crystal composition is easily aligned by a simple rubbing method to provide a uniform monodomain and further provides wider driving voltage and temperature margins effective for providing a practical ferroelectric liquid crystal device.

公开(公告)号：US5785890A

公开(公告)日：1998-07-28

申请号：US729575

申请日：1996-10-11

申请人： Masataka Yamashita ,  Kazuharu Katagiri ,  Masahiro Terada ,  Shosei Mori ,  Syuji Yamada ,  Hiroshi Mizuno ,  Ikuo Nakazawa ,  Koji Noguchi

发明人： Masataka Yamashita ,  Kazuharu Katagiri ,  Masahiro Terada ,  Shosei Mori ,  Syuji Yamada ,  Hiroshi Mizuno ,  Ikuo Nakazawa ,  Koji Noguchi

IPC分类号： C09K19/34 ,  C09K19/42 ,  C09K19/46 ,  C09K19/32

CPC分类号： C09K19/34 ,  C09K19/42 ,  C09K19/46

摘要： A liquid crystal composition comprises at least three compounds represented by formulae (A), (B) and (C), respectively as in Claim 1. The compound of the formula (A) has an indan skeleton, the compound of the formula (B) has a quinoxaline skeleton, and the compound of the formula (C) has a pyrimidine skeleton or a benzothiazole skeleton and a terminal cyclic group comprising a cyclohexyl group or a phenyl group. The liquid crystal composition is effective in improving a display quality and drive characteristics of a liquid crystal device using the composition when the liquid crystal device is continuously driven for a long time.

摘要翻译： 液晶组合物分别包含如权利要求1所述的至少三种由式（A），（B）和（C）表示的化合物。式（A）化合物具有茚满骨架，式（B ）具有喹喔啉骨架，式（C）的化合物具有嘧啶骨架或苯并噻唑骨架和包含环己基或苯基的末端环状基团。 当长时间连续驱动液晶装置时，液晶组合物可有效地提高使用该组合物的液晶装置的显示质量和驱动特性。

公开(公告)号：US5744059A

公开(公告)日：1998-04-28

申请号：US592180

申请日：1996-01-26

申请人： Masataka Yamashita ,  Kazuharu Katagiri ,  Masahiro Terada ,  Shosei Mori ,  Syuji Yamada ,  Koji Noguchi

发明人： Masataka Yamashita ,  Kazuharu Katagiri ,  Masahiro Terada ,  Shosei Mori ,  Syuji Yamada ,  Koji Noguchi

IPC分类号： G02F1/13 ,  C09K19/02 ,  C09K19/34 ,  C09K19/42 ,  C09K19/44 ,  C09K19/46 ,  C09K19/30 ,  C09K19/32

CPC分类号： C09K19/46 ,  C09K19/34 ,  Y10T428/10 ,  Y10T428/1005

摘要： A liquid crystal composition contains a mesomorphic compound represented by the following formula (A): ##STR1## wherein R.sub.1 denotes a linear or branched alkyl group having 1-18 carbon atoms; X.sub.1 denotes a single bond, --O--, --CO--O-- or --O--CO--; X.sub.2 denotes a single bond, --OCH.sub.2 --, --CO--O-- or --O--CO--; n is an integer of 3-16; and A.sub.1, denotes ##STR2## and a mesomorphic compound represented by the following formula (B): ##STR3## wherein R.sub.2 denotes a linear or branched alkyl group having 1-18 carbon atoms; X.sub.3 and X.sub.4 independently denote a single bond, --O--, --CO--O-- or --O--CO--; m is an integer of 3-16; and A.sub.2 denotes ##STR4## The liquid crystal composition may preferably be formulated as a chiral smectic liquid crystal composition. The liquid crystal composition is useful in providing a liquid crystal device using the liquid crystal composition with a good alignment characteristic, a good drive characteristic, and a high contrast ratio.

摘要翻译： 液晶组合物含有由下式（A）表示的介晶化合物：其中R 1表示具有1-18个碳原子的直链或支链烷基; X1表示单键，-O - ， - CO-O-或-O-CO-; X2表示单键，-OCH2-，-CO-O-或-O-CO-; n为3-16的整数; （B）表示的介晶化合物：其中，R 2表示具有1-18个碳原子的直链或支链烷基; X3和X4独立地表示单键，-O - ， - CO-O-或-O-CO-; m为3-16的整数; 并且A2表示作为手性近晶液晶组合物配制的 e。 液晶组合物可用于提供使用具有良好的取向特性，良好的驱动特性和高对比度的液晶组合物的液晶装置。

公开(公告)号：US5728318A

公开(公告)日：1998-03-17

申请号：US555063

申请日：1995-11-08

申请人： Masataka Yamashita ,  Kazuharu Katagiri ,  Masahiro Terada ,  Shosei Mori ,  Syuji Yamada ,  Hiroshi Mizuno

发明人： Masataka Yamashita ,  Kazuharu Katagiri ,  Masahiro Terada ,  Shosei Mori ,  Syuji Yamada ,  Hiroshi Mizuno

IPC分类号： C09K19/34 ,  C09K19/46 ,  C09K19/12 ,  C09K19/32 ,  G02F1/133

CPC分类号： C09K19/46 ,  C09K19/34

摘要： A liquid crystal composition is composed of at least three types of mesomorphic compounds. The liquid crystal composition may preferably contain a mesomorphic compound having an indan skeleton represented by the formula (1) or (3) and a mesomorphic compound having a terminal cyclic group represented by the formula (2) or (4). The liquid crystal composition may also preferably further contain an optically active compound to be formulated as a chiral smectic (or ferroelectric) liquid crystal composition. When the chiral smectic liquid crystal composition is disposed between a pair of electrode substrates provided with uniaxial alignment axes, the liquid crystal composition may preferably be placed in an alignment state in C1 uniform alignment, so that a resultant liquid crystal device provides a higher contrast ratio and a wider drive voltage margin.

摘要翻译： 液晶组合物由至少三种类型的介晶化合物组成。 液晶组合物可以优选含有具有由式（1）或（3）表示的茚满骨架的介晶化合物和具有由式（2）或（4）表示的末端环状基团的介晶化合物。 液晶组合物还优选还含有配制成手性近晶（或铁电体）液晶组合物的光学活性化合物。 当手性近晶液晶组合物配置在具有单轴取向轴的一对电极基板之间时，液晶组合物优选地可以以C1均匀取向放置在取向状态，使得所得到的液晶装置提供更高的对比度 和更宽的驱动电压裕度。

公开(公告)号：US5269964A

公开(公告)日：1993-12-14

申请号：US710773

申请日：1991-06-05

申请人： Masataka Yamashita ,  Masahiro Terada ,  Shosei Mori ,  Kazuharu Katagiri

发明人： Masataka Yamashita ,  Masahiro Terada ,  Shosei Mori ,  Kazuharu Katagiri

IPC分类号： G02F1/13 ,  C07C43/225 ,  C07C69/75 ,  C07C69/753 ,  C07C69/773 ,  C07C69/92 ,  C07C69/94 ,  C07D239/26 ,  C07D239/28 ,  C07D239/34 ,  C07D277/20 ,  C07D277/24 ,  C07D277/30 ,  C07D417/00 ,  C09K19/34 ,  C09K19/42 ,  C09K19/46 ,  C09K19/52

CPC分类号： C09K19/46 ,  C09K19/34 ,  C09K19/42

摘要： A liquid crystal composition comprising at least one mesomorphic compound represented by the following formula (I): ##STR1## wherein R.sub.1 and R.sub.2 respectively denote a linear or branched alkyl group having 1-16 carbon atoms optionally substituted; Z.sub.1 denotes a single bond, --O--, --COO-- or --OCO--; X.sub.1 denotes halogen; and A.sub.1 denotes a single bond or ##STR2## and at least one mesomorphic compound represented by the following formula (II): ##STR3## wherein R.sub.3 and R.sub.4 respectively denote an alkyl group having 2-16 carbon atoms optionally substituted; Y.sub.1 denotes a single bond, ##STR4## Z.sub.2 and Z.sub.3 respectively denote a single bond, --O--, ##STR5## A.sub.2 and A.sub.3 respectively denote a single bond, ##STR6## X.sub.2 and X.sub.3 respectively denote hydrogen, F, Cl, Br, --CH.sub.3, --CN or --CF.sub.3 ; and k is 0 or 1 with the proviso that Z.sub.2 is a single bond when A.sub.2 is a single bond, and Z.sub.3 is a single bond when A.sub.3 is a single bond and k is 0. The liquid crystal composition is easily aligned by a simple rubbing method to provide a uniform monodomain and further provides wider driving voltage and temperature margins effective for providing a practical ferroelectric liquid crystal device.

公开(公告)号：US5305131A

公开(公告)日：1994-04-19

申请号：US979812

申请日：1992-11-20

申请人： Masahiro Terada ,  Masataka Yamashita ,  Kazuharu Katagiri ,  Akio Yoshida ,  Shosei Mori ,  Syuji Yamada

发明人： Masahiro Terada ,  Masataka Yamashita ,  Kazuharu Katagiri ,  Akio Yoshida ,  Shosei Mori ,  Syuji Yamada

IPC分类号： C09K19/02 ,  C09K19/42 ,  C09K19/46 ,  G02F1/141 ,  G02F1/133

CPC分类号： G02F1/1416 ,  C09K19/0225 ,  C09K19/42 ,  C09K19/46

摘要： A liquid crystal device with a decreased temperature-dependence of response speed is obtained by using a liquid crystal composition having a temperature range where the composition assumes chiral smectic C phase. The temperature range of chiral smectic C phase includes a) a first temperature range where the liquid crystal composition shows a cone angle in chiral smectic C phase which increases on temperature decrease down to a mediate temperature, and b) a second temperature range, below the first temperature range, where the liquid crystal composition shows a cone angle in chiral smectic C phase which decreases on further temperature decrease below the mediate temperature.

摘要翻译： 通过使用具有组成为手性近晶C相的温度范围的液晶组合物，获得响应速度的温度依赖性降低的液晶装置。 手性近晶C相的温度范围包括a）第一温度范围，其中液晶组合物在手性近晶C相中显示锥角，其温度降低至中间温度时升高，以及b）第二温度范围，低于 第一温度范围，其中液晶组合物在手性近晶C相中显示锥角，其在进一步的温度降低到低于介质温度时降低。