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：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：US4816178A

公开(公告)日：1989-03-28

申请号：US42814

申请日：1987-04-27

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 ,  C09K19/52 ,  C09K19/06 ,  C09K19/12

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, wherein R.sub.1 * and R.sub.2 * are respectively an alkyl group having 4-12 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.

摘要翻译： 分别由下式表示的光学活性4-烷基苯硫酚和光学活性双（4-烷基苯基）二硫化物：其中R1 *和R2 *分别是具有4-12个碳原子的烷基，包括 不对称碳原子，可以通过例如通过光学活性醇的卤化或磺化，然后与苯基卤化镁反应，氯磺酰化和还原来制备。 光学活性硫醇或二硫化物是有效的，例如在加入向列型液晶时防止反向结构域的发生，并且还可以与中间体结合，从而提供包括由下式表示的介晶化合物的功能材料：＆lt; IMAGE＆gt; 其中R3是具有1-18个碳原子的烷基或烷氧基，n是1或2，C *是不对称碳原子。

公开(公告)号：US5422748A

公开(公告)日：1995-06-06

申请号：US979283

申请日：1992-11-20

申请人： Masataka Yamashita ,  Kazuharu Katagiri ,  Shosei Mori

发明人： Masataka Yamashita ,  Kazuharu Katagiri ,  Shosei Mori

IPC分类号： C09K19/02 ,  C09K19/34 ,  C09K19/42 ,  G02F1/13 ,  G02F1/1337 ,  G02F1/137 ,  G02F1/141 ,  C09K19/56

CPC分类号： C09K19/0225 ,  C09K19/3458 ,  G02F1/1416

摘要： A liquid crystal device, comprising: a pair of substrates, and a ferroelectric liquid crystal disposed between the substrates, each of the substrates having thereon an electrode for applying a voltage to the liquid crystal and a uniaxial alignment film provided with a uniaxial alignment axis, the alignment films on the pair of substrates being substantially parallel with each other and having an identical axis direction; wherein the ferroelectric 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* layer, and an apparent tilt angle .theta. a satisfying relationships of: H .theta.a>H/2; and the ferroelectric liquid crystal comprises at least three mesomorphic compounds represented by the following formula (I): ##STR1## wherein m and n are an integer of 6 to 12, said at least three mesomorphic compounds including:(a) a mesomorphic compound showing a nematic phase and no smectic C phase;(b) a mesomorphic compound showing a nematic phase and a smectic C phase; and(c) a mesomorphic compound showing a smectic C phase and no nematic phase, respectively on temperature decrease from a temperature of isotropic liquid.

摘要翻译： 一种液晶装置，包括：一对基板和设置在基板之间的铁电液晶，每个基板上具有用于向液晶施加电压的电极和设置有单轴对准轴的单轴取向膜， 一对基板上的取向膜基本上彼此平行并且具有相同的轴线方向; 其特征在于，所述强电介质液晶配置成使得液晶呈现预倾角α，锥角+ E，crc / H /，SmC *层的倾斜角度Δ和满足表观倾斜角θa的取向状态 关系：+ E，crc / H /α+δ和+ E，crc / H />θa> + E，crc / H / 所述铁电液晶包含由下式（I）表示的至少三种介晶化合物：其中m和n为6〜12的整数，所述至少3种介晶化合物包括：（a） 显示向列相和没有近晶相的介晶化合物; （b）显示向列相和近晶C相的介晶化合物; 和（c）分别表现出从各向同性液体的温度降低的层状C相和无向列相的介晶化合物。

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：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。

公开(公告)号：US5886680A

公开(公告)日：1999-03-23

申请号：US462974

申请日：1995-06-05

申请人： Junichiro Kanbe ,  Kazuharu Katagiri ,  Syuzo Kaneko

发明人： Junichiro Kanbe ,  Kazuharu Katagiri ,  Syuzo Kaneko

IPC分类号： G09G3/20 ,  G09G3/34 ,  G09G3/36

CPC分类号： G09G3/3629 ,  G03C2001/0471 ,  G09G2310/0205 ,  G09G2310/04 ,  G09G2310/06 ,  G09G2310/065 ,  G09G2320/0209 ,  G09G3/2014 ,  G09G3/2018 ,  Y10S359/90

摘要： A liquid crystal apparatus comprises a liquid crystal device comprising a group of scanning electrodes and a group of signal electrodes intersecting each other to form an electrode matrix, and a chiral smectic liquid crystal disposed in a non-helical alignment state so as to form a picture element at each intersection of the scanning electrodes and the signal electrodes. Drive means are provided for: (a) applying a scanning selection signal and a scanning non-selection signal to the scanning electrodes, the scanning selection signal comprising a voltage of one polarity and a voltage of the other polarity, respectively with reference to a voltage level of the scanning nonselection signal, and being applied in a period for selecting one scanning electrode, (b) in a period of applying the voltage of one polarity, applying signals to the signal electrodes for causing one orientation state of the chiral smectic liquid crystal, so as to non-selectively erase the picture elements on a scanning electrode to which the scanning selection signal is applied, and (c) periodically applying the scanning selection signal to the scanning electrodes.

摘要翻译： 一种液晶装置，包括一个液晶装置，它包括一组扫描电极和一组彼此相交的信号电极，以形成一个电极矩阵，和一个以非螺旋取向状态设置的手性近晶液晶，以便形成一个图象 扫描电极和信号电极的交点处的元件。 提供驱动装置，用于：（a）向扫描电极施加扫描选择信号和扫描非选择信号，扫描选择信号分别包括一个极性的电压和另一个极性的电压，参考电压 扫描非选择信号的电平，并且在用于选择一个扫描电极的周期中施加，（b）在施加一个极性的电压的周期中，向信号电极施加信号以引起手性近晶液晶的一个取向状态 ，以便在扫描选择信号被施加的扫描电极上不选择性地擦除图像元素，并且（c）周期地将扫描选择信号施加到扫描电极。

公开(公告)号：US5724114A

公开(公告)日：1998-03-03

申请号：US440878

申请日：1995-05-15

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 ,  G02F1/133 ,  G02F1/1337 ,  G02F1/1341 ,  G02F1/141 ,  G02F1/13

CPC分类号： C09K19/02 ,  C09K19/0225 ,  C09K19/2021 ,  C09K19/50 ,  G02F1/132 ,  G02F1/1337 ,  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：US5604614A

公开(公告)日：1997-02-18

申请号：US472272

申请日：1995-06-07

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 ,  G02F1/13

CPC分类号： C09K19/0225 ,  C09K19/2021 ,  C09K19/50 ,  G02F1/1337 ,  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 at least two liquid crystal compounds including at least one liquid crystal compound which has a temperature range in which it shows cholesteric 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。 液晶组合物包含至少两种液晶化合物，其包含至少一种液晶化合物，其液晶化合物具有显示胆甾型相的温度范围。 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：US5565884A

公开(公告)日：1996-10-15

申请号：US465225

申请日：1995-06-05

申请人： Junichiro Kanbe ,  Kazuharu Katagiri ,  Syuzo Kaneko

发明人： Junichiro Kanbe ,  Kazuharu Katagiri ,  Syuzo Kaneko

IPC分类号： G09G3/20 ,  G09G3/34 ,  G09G3/36

CPC分类号： G09G3/3629 ,  G03C2001/0471 ,  G09G2310/0205 ,  G09G2310/04 ,  G09G2310/06 ,  G09G2310/065 ,  G09G2320/0209 ,  G09G3/2014 ,  G09G3/2018 ,  Y10S359/90

摘要： A driving method is provided for driving an optical modulation device. The device has picture elements arranged in the form of a matrix consisting of a plurality of rows and a plurality of columns defined by the intersections of scanning electrodes and signal electrodes, and a liquid crystal having a memory function. The picture elements in each row are selectively supplied with either a voltage for orienting the liquid crystal to one display state, or another voltage for orienting the liquid crystal to another display state. The method comprises the steps of sequentially and repetitively applying a scanning selection signal to the scanning electrodes, the scanning selection signal comprising a former signal of a first voltage and a latter voltage signal of a second voltage different from the first voltage to one of the scanning electrodes to select a particular scanning electrode, and applying data signals to the signal electrodes, each data signal comprising an information signal for selecting a display state of a picture element on the particular scanning electrode. The picture elements on the particular scanning electrode supplied with the former voltage signal are non-selectively erased into an erased state and a picture element on the particular scanning electrode supplied with the latter voltage signal is placed in either the one display state or another display state depending on the information signal.

摘要翻译： 提供驱动光调制装置的驱动方法。 该装置具有以由扫描电极和信号电极的交点定义的多行和多列构成的矩阵形式的图像元素和具有记忆功能的液晶。 每行中的像素选择性地提供用于将液晶定向到一个显示状态的电压或用于将液晶定向到另一显示状态的另一个电压。 该方法包括以下步骤：将扫描选择信号顺序地重复地施加到扫描电极，扫描选择信号包括第一电压的前一个信号和与第一电压不同于第一电压的第二电压的后一个电压信号 用于选择特定扫描电极的电极，以及向信号电极施加数据信号，每个数据信号包括用于选择特定扫描电极上的像素的显示状态的信息信号。 提供有前一个电压信号的特定扫描电极上的像素被非选择性地擦除为擦除状态，并且提供有后一个电压信号的特定扫描电极上的像素被放置在一个显示状态或另一个显示状态 取决于信息信号。