公开(公告)号：US5311343A

公开(公告)日：1994-05-10

申请号：US34827

申请日：1993-03-18

申请人： Kazuharu Katagiri ,  Kazuo Yoshinaga ,  Shinjiro Okada ,  Junichiro Kanbe

发明人： Kazuharu Katagiri ,  Kazuo Yoshinaga ,  Shinjiro Okada ,  Junichiro Kanbe

IPC分类号： C09K19/02 ,  C09K19/20 ,  C09K19/50 ,  G02F1/1337 ,  G02F1/1341 ,  G02F1/141 ,  G02F1/137 ,  C09K19/52 ,  G02F1/13

CPC分类号： G02F1/1337 ,  C09K19/0225 ,  C09K19/2021 ,  C09K19/50 ,  G02F1/141 ,  G02F1/1341 ,  G02F2001/133765

摘要： A liquid crystal device is constituted by (a) a pair of base plates each having an orientation control film thereon, and (b) a liquid crystal composition interposed between the base plates. The liquid crystal composition comprises a mixture including at least one liquid crystal compound which has a temperature range in which it shows chiral smectic phase and at least one optically active substance which does not have a temperature range in which it shows chiral smectic phase. The liquid crystal composition has a temperature range in which it shows cholesteric phase and is placed in chiral smectic phase which has been formed through cholesteric phase on temperature decrease. The liquid crystal composition comprises liquid crystal molecules having long axes forming a pre-tilt in the chiral smectic phase.

摘要翻译： 液晶装置由（a）在其上具有取向控制膜的一对基板构成，（b）插入在基板之间的液晶组合物。 该液晶组合物包括含有至少一种具有显示手性近晶相的温度范围的液晶化合物和至少一种不具有手性近晶相的温度范围的光学活性物质的混合物。 液晶组合物具有其显示胆甾醇相的温度范围，并且置于通过胆甾醇相在温度降低时形成的手性近晶相。 液晶组合物包含长轴在手性近晶相中形成预倾斜的液晶分子。

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：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：US5143643A

公开(公告)日：1992-09-01

申请号：US373640

申请日：1989-07-03

申请人： Takashi Iwaki ,  Kenji Shinjo ,  Akio Yoshida ,  Masataka Yamashita ,  Kazuharu Katagiri ,  Chieko Hioki ,  Takeshi Togano ,  Yoko Yamada ,  Masahiro Terada

发明人： Takashi Iwaki ,  Kenji Shinjo ,  Akio Yoshida ,  Masataka Yamashita ,  Kazuharu Katagiri ,  Chieko Hioki ,  Takeshi Togano ,  Yoko Yamada ,  Masahiro Terada

IPC分类号： C07C43/13 ,  C07C43/205 ,  C07C43/23 ,  C07D239/26 ,  C09K19/20 ,  C09K19/30 ,  C09K19/34

CPC分类号： C07D239/26 ,  C07C43/13 ,  C07C43/2055 ,  C07C43/23 ,  C09K19/2021 ,  C09K19/3068 ,  C09K19/3463

摘要： An optically active mesomorphic compound represented by the formula (III) is obtained through an optically active compound represented by the formula (I) and then through a compound represented by the formula (II), respectively, shown below. ##STR1## In the above formulas, R represents a linear, branched or cyclic saturated or unsaturated hydrocarbon group having 1-18 carbon atoms each capable of having a substituent, C* represents an asymmetric carbon atom, k is an integer of from 2 to 5, A is a releasable active group such as hydroxyl, l is 0 or 1, and when l is 1, m is 0, 1 or 2 and n is 0 or 1; R.sup.1 represents an alkyl or alkoxy group having 1-18 carbon atoms; ##STR2## respectively denote ##STR3## p, q and r are respectively 0 or 1 satisfying the relation of p+q+r.gtoreq.1.

摘要翻译： 通过式（I）表示的光学活性化合物，然后分别通过如下所示的式（II）表示的化合物获得由式（III）表示的光学活性介晶化合物。 （I）（II）（III）在上式中，R表示具有1-18个碳原子的直链，支链或环状的饱和或不饱和烃基，其能够具有 取代基，C *表示不对称碳原子，k为2〜5的整数，A为可释放的活性基团，例如羟基，l为0或1，当l为1时，m为0,1或2， n为0或1; R1表示具有1-18个碳原子的烷基或烷氧基; 分别表示 p，q和r分别为0或1，满足p + q + r> / = 1的关系。

公开(公告)号：US5034152A

公开(公告)日：1991-07-23

申请号：US415383

申请日：1989-09-28

申请人： Kazuharu Katagiri ,  Kenji Shinjo ,  Kazuo Yoshinaga

发明人： Kazuharu Katagiri ,  Kenji Shinjo ,  Kazuo Yoshinaga

IPC分类号： C07C327/26 ,  C09K19/28 ,  C09K19/58

CPC分类号： C07C327/26 ,  C09K19/28 ,  C09K19/58 ,  C09K19/586

摘要： An optically active 4-alkylbenzenethiol and an optically active bis(4-alkylphenyl)disulfide represented by the formula: ##STR1## respectively, R.sub.1 * and R.sub.2 * are respectively an alkyl group having 1-12 carbon atoms including an asymmetric carbon atom, may be prepared, e.g., through halogenation or sulfonation of an optically active alcohol, followed by reaction with a phenylmagnesium halide, chlorosulfonylation and reduction. The optically active thiol or disulfide is effective, e.g., in preventing occurrence of reverse domain when added to a nematic liquid crystal, and also can be bonded to an intermediate to provide a functional material including a mesomorphic compound represented by the formula: ##STR2## wherein R.sub.3 is an alkyl or alkoxy group having 1-18 carbon atoms, n is 1 or 2, and C* is an asymmetric carbon atom.

公开(公告)号：US4904410A

公开(公告)日：1990-02-27

申请号：US174384

申请日：1988-03-28

申请人： Hiroyuki Nohira ,  Masanao Kamei ,  Shinichi Nakamura ,  Takashi Iwaki ,  Kazuharu Katagiri ,  Yoko Yamada

发明人： Hiroyuki Nohira ,  Masanao Kamei ,  Shinichi Nakamura ,  Takashi Iwaki ,  Kazuharu Katagiri ,  Yoko Yamada

IPC分类号： C07D239/26 ,  C09K19/34

CPC分类号： C07D239/26 ,  C09K19/3463

摘要： An optically active mesomorphic compound is represented by the following formula (I): ##STR1## wherein R.sub.1 and R.sub.2 are respectively an alkyl group having 1 to 16 carbon atoms, and C* denotes an asymmetric carbon atom. The mesomorphic compound has a fluorine atom directly connected to the asymmetric carbon atom and is effectively used as a liquid crystal component providing an increased spontaneous polarization and an improved responsiveness.

摘要翻译： 光学活性介晶化合物由下式（I）表示：其中R 1和R 2分别为具有1至16个碳原子的烷基，C *表示不对称碳原子。 介晶化合物具有与不对称碳原子直接连接的氟原子，并且有效地用作提供增加的自发极化和改善的响应性的液晶组分。

公开(公告)号：US4883344A

公开(公告)日：1989-11-28

申请号：US300922

申请日：1989-01-24

申请人： Shinjiro Okada ,  Kazuo Yoshinaga ,  Osamu Taniguchi ,  Hideyuki Kawagishi ,  Akira Tsuboyama ,  Yukio Hanyu ,  Masataka Yamashita ,  Kazuharu Katagiri

发明人： Shinjiro Okada ,  Kazuo Yoshinaga ,  Osamu Taniguchi ,  Hideyuki Kawagishi ,  Akira Tsuboyama ,  Yukio Hanyu ,  Masataka Yamashita ,  Kazuharu Katagiri

IPC分类号： G02F1/1337 ,  G02F1/141

CPC分类号： G02F1/133719 ,  G02F1/141 ,  Y10T428/1014

摘要： A liquid crystal device comprises a pair of parallel substrates and a ferroelectric liquid crystal disposed between the substrates so as to have an arrangement of molecules forming a plurality of layers perpendicular to the faces of the substrates. At least one of the pair of substrates has an alignment control film formed of a modified polyvinyl alcohol resin having a function of aligning said plurality of layers preferentially in one direction. The modified polyvinyl alcohol resin film stably provides a uniform alignment state with a large tilt angle than a conventional alignment control film of polyimide or unmodified polyvinyl alcohol.

摘要翻译： 液晶装置包括一对平行衬底和设置在衬底之间的铁电液晶，以便具有形成与衬底的表面垂直的多个层的分子排列。 所述一对基板中的至少一个具有由改性聚乙烯醇树脂形成的取向控制膜，所述改性聚乙烯醇树脂具有在一个方向上优先对准所述多个层的功能。 改性聚乙烯醇树脂膜与传统的聚酰亚胺或未改性聚乙烯醇的取向控制膜稳定地提供了大的倾斜角度的均匀取向状态。

公开(公告)号：US4880560A

公开(公告)日：1989-11-14

申请号：US292953

申请日：1989-01-03

申请人： Kazuo Yoshinaga ,  Kazuharu Katagiri ,  Kenji Shinjo

发明人： Kazuo Yoshinaga ,  Kazuharu Katagiri ,  Kenji Shinjo

IPC分类号： C07C65/21 ,  C07C65/24

CPC分类号： C07C65/24 ,  C07C65/21 ,  C09K19/062 ,  C09K19/126 ,  C09K2019/0437 ,  C09K2019/122

摘要： An optically active lactic acid derivative represented by the following formula (Ia) or (Ib): ##STR1## wherein R is a linear, branched or cyclic saturated or unsaturated hydrocarbon group having 1-16 carbon atoms,R.sup.1 is an alkyl group having 4-16 carbon atoms,m and n are respectively 1 or 2,k is 0 or 1, andC* is an asymmetric carbon atom.A liquid crystal composition containing the lactic acid derivative and a liquid crystal device using the liquid crystal composition are also disclosed.

摘要翻译： （Ia）或（Ib）表示的光学活性乳酸衍生物：其中R是具有1-16个碳原子的直链，支链或环状的饱和或不饱和烃基 原子，R1是具有4-16个碳原子的烷基，m和n分别为1或2，k为0或1，C *为不对称碳原子。 还公开了含有乳酸衍生物的液晶组合物和使用该液晶组合物的液晶装置。

公开(公告)号：US4873018A

公开(公告)日：1989-10-10

申请号：US112936

申请日：1987-10-27

申请人： Hiroyuki Nohira ,  Masanao Kamei ,  Shinichi Nakamura ,  Kazuo Yoshinaga ,  Mariko Kai ,  Kazuharu Katagiri

发明人： Hiroyuki Nohira ,  Masanao Kamei ,  Shinichi Nakamura ,  Kazuo Yoshinaga ,  Mariko Kai ,  Kazuharu Katagiri

IPC分类号： C09K19/06

CPC分类号： C09K19/06

摘要： An optically active 2-fluoro-1-alkanol compound represented by the formula (Ia): ##STR1## wherein R is an alkyl group having 1-16 carbon atoms, and C* is an asymmetric carbon atom; and an optically active compound derived from the fluoroalkanol and represented by the formula (Ib): ##STR2## wherein R and C* are the same as above, m is 1 or 2, n is 0 or 1, and A is a releasable substitutent. Because of the fluorine atom directly attached to an asymmetric carbon atom, these compounds are particularly effective in increasing a spontaneous polarization, improving a electric field responsive characteristic of a liquid crystal composition, and controlling the liquid crystal state.

摘要翻译： 由式（Ia）表示的光学活性2-氟-1-链烷醇化合物：其中R是具有1-16个碳原子的烷基，C *是不对称碳原子; 和由式（Ib）表示的光学活性化合物：其中R和C *与上述相同，m为1或2，n为0或1，A为 可释放的替代品。 由于氟原子直接连接到不对称碳原子上，这些化合物在增加自发极化，改善液晶组合物的电场响应特性和控制液晶状态方面特别有效。

公开(公告)号：US4820026A

公开(公告)日：1989-04-11

申请号：US26977

申请日：1987-03-17

申请人： Shinjiro Okada ,  Kazuo Yoshinaga ,  Osamu Taniguchi ,  Hideyuki Kawagishi ,  Akira Tsuboyama ,  Yukio Hanyu ,  Masataka Yamashita ,  Kazuharu Katagiri

发明人： Shinjiro Okada ,  Kazuo Yoshinaga ,  Osamu Taniguchi ,  Hideyuki Kawagishi ,  Akira Tsuboyama ,  Yukio Hanyu ,  Masataka Yamashita ,  Kazuharu Katagiri

IPC分类号： G02F1/1337 ,  G02F1/141 ,  G02F1/13

CPC分类号： G02F1/133719 ,  G02F1/141 ,  Y10T428/1014

摘要： A liquid crystal device comprises a pair of parallel substrates and a ferroelectric liquid crystal disposed between the substrates so as to have an arrangement of molecules forming a plurality of layers perpendicular to the faces of the substrates. At least one of the pair of substrates has an alignment control film formed of a modified polyvinyl alcohol resin having a function of aligning said plurality of layers preferentially in one direction. The modified polyvinyl alcohol resin film stably provides a uniform alignment state with a larger tilt angle than a conventional alignment control film of polyimide or unmodified polyvinyl alcohol.

摘要翻译： 液晶装置包括一对平行衬底和设置在衬底之间的铁电液晶，以便具有形成与衬底的表面垂直的多个层的分子排列。 所述一对基板中的至少一个具有由改性聚乙烯醇树脂形成的取向控制膜，所述改性聚乙烯醇树脂具有在一个方向上优先对准所述多个层的功能。 改性聚乙烯醇树脂膜与传统的聚酰亚胺或未改性聚乙烯醇的取向控制膜稳定地提供具有较大倾斜角度的均匀取向状态。