公开(公告)号：US5885482A

公开(公告)日：1999-03-23

申请号：US775792

申请日：1996-12-27

申请人： Masanobu Asaoka ,  Yukio Hanyu ,  Kenji Shinjo ,  Koichi Sato ,  Masahiro Terada ,  Shosei Mori ,  Shinichi Nakamura ,  Syuji Yamada ,  Ikuo Nakazawa ,  Koji Noguchi

发明人： Masanobu Asaoka ,  Yukio Hanyu ,  Kenji Shinjo ,  Koichi Sato ,  Masahiro Terada ,  Shosei Mori ,  Shinichi Nakamura ,  Syuji Yamada ,  Ikuo Nakazawa ,  Koji Noguchi

IPC分类号： C09K19/04 ,  G02F1/1337 ,  G02F1/1339 ,  G02F1/141 ,  C09K19/56 ,  C09K19/52

CPC分类号： G02F1/13392 ,  C09K19/04 ,  G02F1/1337 ,  G02F1/141 ,  G02F2001/13373

摘要： A liquid crystal device is constituted by a pair of oppositely disposed substrates including a first substrate provided with a first alignment control layer which has been subjected to a uniaxial aligning treatment and a second substrate provided with a second alignment control layer which has not been subjected to a uniaxial aligning treatment, a sealing member disposed so as to seal up a peripheral portion of the first and second substrates to form a spacing therebetween, and a dispersion member (e.g., spacer beads or adhesive particles) and a liquid crystal disposed in the spacing while contacting the first and second aligning control layers. The dispersion member has been subjected to a surface treatment with a material constituting the second alignment control layer. The surface-treated dispersion member is effective in suppressing an occurrence of a reverse domain within a display region of the liquid crystal device, thus preventing flickering and improving a contrast.

摘要翻译： 液晶装置由一对相对设置的基板构成，该基板包括：第一基板，设置有经受单轴取向处理的第一取向控制层;以及第二基板，设置有未经受 单轴取向处理，密封构件，其被设置为密封第一和第二基板的周边部分以在其间形成间隔;以及分散构件（例如间隔珠或粘合剂颗粒）和以间隔设置的液晶 同时接触第一和第二对准控制层。 分散体已经用构成第二取向控制层的材料进行了表面处理。 经表面处理的分散体有效地抑制液晶显示装置的显示区域内的反向畴的发生，防止闪烁，提高对比度。

公开(公告)号：US6001276A

公开(公告)日：1999-12-14

申请号：US896541

申请日：1997-07-18

申请人： Masanobu Asaoka ,  Hideaki Takao ,  Koichi Sato ,  Masahiro Terada ,  Shinichi Nakamura ,  Ikuo Nakazawa

发明人： Masanobu Asaoka ,  Hideaki Takao ,  Koichi Sato ,  Masahiro Terada ,  Shinichi Nakamura ,  Ikuo Nakazawa

IPC分类号： G02F1/137 ,  C09K19/02 ,  G02F1/1337 ,  C09K19/56 ,  C09K19/52

CPC分类号： C09K19/0225 ,  G02F1/133723 ,  Y10T428/1023

摘要： A liquid crystal device is constituted by a pair of transparent substrates each having thereon a transparent electrode, and a chiral smectic liquid crystal composition lacking cholesteric phase disposed between the substrates so as to assume at least two optically stable states. At least one of the substrates is provided with an alignment film which comprises a polyimide represented by a recurring unit of formula (I) shown below and has been subjected to a uniaxial aligning treatment. ##STR1## wherein A denotes a tetravalent aliphatic hydrocarbon group free from a planar structure or a tetravalent alicyclic hydrocarbon group, and n is an integer of at least 1. The chiral smectic liquid crystal composition may preferably contain at least one species of fluorine-containing mesomorphic compound comprising a fluorocarbon terminal portion and a hydrocarbon terminal portion connected with a central core and having a smectic phase or a latent smectic phase.

摘要翻译： 液晶装置由一对透明基板构成，每个透明基板上都具有透明电极，并且在基板之间设置缺少胆固醇相的手性近晶液晶组合物，以呈现至少两个光学稳定状态。 至少一个基板设置有取向膜，该取向膜包含由下述式（I）的重复单元表示的聚酰亚胺，并进行单轴对准处理。 其中A表示不含平面结构或四价脂环族烃基的四价脂族烃基，n为至少为1的整数。手性近晶液晶组合物优选含有至少一种含氟介晶化合物，所述含氟介晶化合物包含 碳氟化合物末端部分和与中心核心连接并具有近晶相或潜层晶相的烃末端部分。

公开(公告)号：US5453861A

公开(公告)日：1995-09-26

申请号：US252535

申请日：1994-06-01

申请人： Kenji Shinjo ,  Hiroyuki Kitayama ,  Masanobu Asaoka ,  Masahiro Terada ,  Syuji Yamada ,  Hiroshi Mizuno

发明人： Kenji Shinjo ,  Hiroyuki Kitayama ,  Masanobu Asaoka ,  Masahiro Terada ,  Syuji Yamada ,  Hiroshi Mizuno

IPC分类号： G02F1/1337 ,  G02F1/141 ,  G02F1/13 ,  G02F1/1343

CPC分类号： G02F1/1416 ,  G02F2001/133746

摘要： A liquid crystal device showing improved uniform alignment characteristic and switching characteristic is constituted by a pair of an upper substrate and a lower substrate, and a chiral smectic liquid crystal disposed between the upper and lower substrates. Each of the upper and lower substrates has thereon an electrode for applying a voltage to the liquid crystal and a uniaxial alignment film. The alignment films on the upper and lower substrates are provided with uniaxial alignment axes which cross each other so that the direction of crossing of the uniaxial alignment axes from the lower substrate to the upper substrate is identical to the direction of helical twist in cholesteric phase of the chiral smectic liquid crystal, and the chiral smectic liquid crystal is disposed in such an alignment state that the liquid crystal shows a pretilt angle .alpha., a cone angle H, an inclination angle .delta. of SmC.sup.* layer, and an apparent tilt angle .theta.a satisfying relationships of: H .theta.a>H/2. The crossing direction may preferably have a polarity (taken as "positive" in clockwise direction and "negative" in anticlockwise direction) which is the same as the polarity of the spontaneous polarization of the liquid crystal.

摘要翻译： 显示出改善的均匀取向特性和切换特性的液晶装置由一对上基板和下基板以及设置在上基板和下基板之间的手性近晶液晶构成。 上基板和下基板都具有用于向液晶施加电压的电极和单轴取向膜。 上基板和下基板上的取向膜具有彼此交叉的单轴对准轴，使得单轴对准轴从下基板到上基板的交叉方向与胆甾醇相的螺旋扭转方向相同 手性近晶液晶和手性近晶液晶以这样的取向状态设置，使得液晶显示预倾角α，锥角+ E，crc / H /，SmC *层的倾斜角度δ，以及 满足以下关系的明显倾斜角θa：+ E，crc / H /α+δ和+ E，crc / H />θa> + E，crc / H / / 2。 交叉方向可以优选地具有与液晶的自发极化的极性相同的极性（顺时针方向为“正”，逆时针方向为“负”）。

公开(公告)号：US5405553A

公开(公告)日：1995-04-11

申请号：US76931

申请日：1993-06-16

申请人： Masahiro Terada ,  Takeshi Togano ,  Masataka Yamashita ,  Takao Takiguchi ,  Masanobu Asaoka ,  Kenji Shinjo ,  Hiroyuki Kitayama ,  Shinichi Nakamura

发明人： Masahiro Terada ,  Takeshi Togano ,  Masataka Yamashita ,  Takao Takiguchi ,  Masanobu Asaoka ,  Kenji Shinjo ,  Hiroyuki Kitayama ,  Shinichi Nakamura

IPC分类号： C09K19/34 ,  C09K19/46 ,  C07D239/02 ,  G02F1/13

CPC分类号： C09K19/46 ,  C09K19/3441

摘要： A ferroelectric chiral smectic liquid crystal composition, comprising at least one optically active 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; X.sub.1 denotes --O--, ##STR2## and X.sub.2 denotes a single bond, --O--, ##STR3## and at least one compound represented by the following formula (II): ##STR4## wherein R.sub.3 and R.sub.4 respectively denote a linear or branched optically inactive alkyl group having 1-18 carbon atoms capable of having an alkoxy group of 1-12 carbon atoms; X.sub.3 and X.sub.4 respectively denote a single bond, --O--, ##STR5## and m and n are respectively 0, 1 or 2 with proviso that both of m and n are not 0.

摘要翻译： 包含至少一种由下式（I）表示的光学活性化合物的铁电手性近晶液晶组合物：具有能够具有取代基的具有1-18个碳原子的直链或支链烷基，R 1和R 2中的至少一个 光学活性; X1表示-O-，，X2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 具有能够具有1-12个碳原子的烷氧基的具有1-18个碳原子的直链或支链的非光学惰性烷基; X3和X4分别表示单键，-O-，，m和n分别为0,1或2，条件是m和n均不为0。

公开(公告)号：US5750214A

公开(公告)日：1998-05-12

申请号：US766883

申请日：1996-12-13

申请人： Nobuhiro Ito ,  Yasuaki Takeda ,  Yukio Hanyu ,  Masanobu Asaoka ,  Ikuo Nakazawa ,  Yasufumi Asao ,  Takashi Moriyama

发明人： Nobuhiro Ito ,  Yasuaki Takeda ,  Yukio Hanyu ,  Masanobu Asaoka ,  Ikuo Nakazawa ,  Yasufumi Asao ,  Takashi Moriyama

IPC分类号： G02F1/1337

CPC分类号： G02F1/133711 ,  Y10T428/1018 ,  Y10T428/1027

摘要： A liquid crystal device is constituted by a pair of substrates at least one of which is provided with an alignment control film, and a liquid crystal composition disposed between the substrates and contacting the alignment control film. The alignment control film comprises an amide polymer and a pyridine-based polymer. The liquid crystal device using a mixture alignment control film described above is effective in improving a switching characteristic by minimizing a depolarization field while keeping a uniform alignment characteristic.

摘要翻译： 液晶装置由一对基板构成，至少一个基板设置有取向控制膜，液晶组合物设置在基板之间并与取向控制膜接触。 取向控制膜包含酰胺聚合物和吡啶基聚合物。 使用上述混合取向控制膜的液晶装置在保持均匀的取向特性的同时通过最小化去极化场来提高开关特性是有效的。

公开(公告)号：US5858273A

公开(公告)日：1999-01-12

申请号：US684864

申请日：1996-07-25

申请人： Masanobu Asaoka ,  Yasuaki Takeda ,  Yukio Hanyu ,  Ikuo Nakazawa ,  Nobuhiro Ito ,  Yasufumi Asao ,  Takashi Moriyama

发明人： Masanobu Asaoka ,  Yasuaki Takeda ,  Yukio Hanyu ,  Ikuo Nakazawa ,  Nobuhiro Ito ,  Yasufumi Asao ,  Takashi Moriyama

IPC分类号： C09K19/04 ,  C09K19/34 ,  C09K19/56 ,  C09K19/02 ,  C09K19/52 ,  G02F1/1337

CPC分类号： C09K19/04 ,  C09K19/34 ,  Y10T428/1027

摘要： A liquid crystal device is constituted by a pair of transparent substrates each having thereon a transparent electrode, and a chiral smectic liquid crystal composition disposed between the substrates so as to assume at least two optically stable states. At least one of the substrates is provided with an alignment film which comprises a polyimide represented by a recurring unit of formula (I) shown below and has been subjected to a uniaxial aligning treatment. ##STR1## wherein A denotes a planar tetravalent organic residue group comprising an aromatic ring, an aromatic polycyclic ring, a heterocyclic ring or a condensed polycyclic ring, and B denotes a divalent aliphatic group comprising .paren open-st.CH.sub.2 .paren close-st..sub.n (n: an integer of at least 1) or an alicyclic ring. The chiral smectic liquid crystal composition may contain at least one species of fluorine-containing mesomorphic compound comprising a fluorocarbon terminal portion and a hydrocarbon terminal portion connected with a central core and having a smectic phase or a latent smectic phase.

摘要翻译： 液晶装置由一对透明基板构成，每个透明基板上具有透明电极，并且手性近晶液晶组合物设置在基板之间以便呈现至少两个光学稳定状态。 至少一个基板设置有取向膜，该取向膜包含由下述式（I）的重复单元表示的聚酰亚胺，并进行单轴对准处理。 式（I）：其中A表示包括芳香环，芳族多环，杂环或稠合多环的平面四价有机残基，B表示包含+545CH 2 + 546 + E，ovs n + EE（n：至少为1的整数）或脂环族环。 手性近晶液晶组合物可以含有至少一种含氟介晶化合物，其含氟碳末端部分和与中心核心连接并具有近晶相或潜层晶相的烃末端部分。

公开(公告)号：US5481387A

公开(公告)日：1996-01-02

申请号：US272652

申请日：1994-07-11

申请人： Yukio Hanyu ,  Yutaka Inaba ,  Masanobu Asaoka ,  Osamu Taniguchi ,  Kenji Shinjo ,  Toshiharu Uchimi

发明人： Yukio Hanyu ,  Yutaka Inaba ,  Masanobu Asaoka ,  Osamu Taniguchi ,  Kenji Shinjo ,  Toshiharu Uchimi

IPC分类号： G02F1/1337 ,  G02F1/141 ,  G09G3/36 ,  G02F1/13

CPC分类号： G09G3/3629 ,  G02F1/1416 ,  G02F2001/133746 ,  G09G2310/06 ,  G09G2320/0209

摘要： A ferroelectric liquid crystal element has a ferroelectric liquid crystal with an orientation state represented by .theta. .theta..sub.a >.theta./2.

摘要翻译： 铁电液晶元件具有由θ<α+δ表示的取向状态的铁电液晶，其中α是铁电液晶的预倾角，θ是倾斜角，delta是Sm * C的倾斜角 层。 在另一个实施方案中是在第一取向状态下具有满足T1 / T2 <2.5的手性近晶液晶的液晶元件，其中T2是与闪电和发夹缺陷相邻的第二取向状态的部分的脉冲宽度阈值，T1是 在T2部分外的部分的第一取向状态下的脉冲宽度阈值。 在两个实施例中，铁电液晶在取向上呈现至少两个稳定状态。 这两个稳定状态的光轴和铁电液晶的倾斜角8之间的中间角度θ满足θ>θa>θ/ 2的条件。

公开(公告)号：US5189536A

公开(公告)日：1993-02-23

申请号：US663436

申请日：1991-03-01

申请人： Yukio Hanyu ,  Yutaka Inaba ,  Masanobu Asaoka ,  Osamu Taniguchi ,  Kenji Shinjo ,  Toshiharu Uchimi

发明人： Yukio Hanyu ,  Yutaka Inaba ,  Masanobu Asaoka ,  Osamu Taniguchi ,  Kenji Shinjo ,  Toshiharu Uchimi

IPC分类号： G02F1/1337 ,  G02F1/141 ,  G09G3/36

CPC分类号： G09G3/3629 ,  G02F1/1416 ,  G02F2001/133746 ,  G09G2310/06 ,  G09G2320/0209

摘要： A ferroelectric liquid crystal element has a ferroelectric liquid crystal with an orientation state represented by .theta. .theta..sub.a >.theta./2.

公开(公告)号：US06456349B1

公开(公告)日：2002-09-24

申请号：US08527775

申请日：1995-09-13

申请人： Yukio Hanyu ,  Yutaka Inaba ,  Masanobu Asaoka ,  Osamu Taniguchi ,  Kenji Shinjo ,  Toshiharu Uchimi

发明人： Yukio Hanyu ,  Yutaka Inaba ,  Masanobu Asaoka ,  Osamu Taniguchi ,  Kenji Shinjo ,  Toshiharu Uchimi

IPC分类号： G02F1141

CPC分类号： G09G3/3629 ,  G02F1/1416 ,  G02F2001/133746 ,  G09G2310/06 ,  G09G2320/0209

摘要： A ferroelectric liquid crystal element comprises a ferroelectric liquid crystal and a pair of substantially parallel substrates having opposite surfaces between which the ferroelectric liquid crystal is sealed. The substrates are provided with electrodes to which voltages are applied, and are subjected to one axis orientation treatment so as to orient the ferroelectric liquid crystal. The ferroelectric liquid crystal has an orientation state represented by the following condition: &thgr; &thgr;a>{fraction (&thgr;/2)}.

摘要翻译： 铁电液晶元件包括铁电液晶和一对具有相对表面的基本平行的基板，铁电液晶被密封在该表面之间。 基板设置有施加电压的电极，并进行一个轴取向处理以使铁电液晶取向。 铁电液晶具有由以下条件表示的取向状态：其中α是铁电液晶的预倾角，θ是倾斜角，delta是Sm * C层的倾斜角。 铁电液晶在取向上表现出至少两个稳定状态。 这两个稳定状态的光轴和铁电液晶的倾斜角θ之间的角度θ1/2满足条件θ>θ> {分数（θ/ 2）}。

公开(公告)号：US5482652A

公开(公告)日：1996-01-09

申请号：US266472

申请日：1994-06-27

申请人： Kenji Shinjo ,  Masahiro Terada ,  Toshiharu Uchimi ,  Akio Yoshida ,  Takeshi Togano ,  Masanobu Asaoka ,  Takashi Iwaki

发明人： Kenji Shinjo ,  Masahiro Terada ,  Toshiharu Uchimi ,  Akio Yoshida ,  Takeshi Togano ,  Masanobu Asaoka ,  Takashi Iwaki

IPC分类号： C09K19/30 ,  C09K19/34 ,  C09K19/42 ,  C09K19/46 ,  G02F1/141

CPC分类号： C09K19/3452 ,  C09K19/3068 ,  C09K19/3458 ,  C09K19/3463 ,  C09K19/42 ,  C09K19/46 ,  G02F1/141

摘要： A ferroelectric chiral smectic liquid crystal composition is provided with a fast response speed and a less temperature dependency of the response speed by containing at least one mesomorphic compound represented by the formula (1) below: ##STR1## wherein R.sub.1 denotes an alkyl group having 1-16 carbon atoms and capable of having a substituent; R.sub.2 denotes an alkyl group, alkoxy group, alkoxycarbonyl group, acyloxy group or alkoxycarbonyloxy group each having 1-16 carbon atoms and capable of having a substituent; and ##STR2## respectively denotes ##STR3## each capable of having a substituent.

摘要翻译： 通过含有至少一种由下式（1）表示的介晶化合物，铁电手性近晶液晶组合物具有快速的响应速度和较小的响应速度的温度依赖性：其中R1表示烷基 具有1-16个碳原子并具有取代基的基团; R2表示具有1-16个碳原子并能够具有取代基的烷基，烷氧基，烷氧基羰基，酰氧基或烷氧基羰基氧基; 和分别表示能够具有取代基的 。