公开(公告)号：US4759614A

公开(公告)日：1988-07-26

申请号：US883952

申请日：1986-07-10

申请人： Hisao Yokokura ,  Katsumi Kondo ,  Yasuo Hanawa ,  Susumu Era ,  Kishiro Iwasaki ,  Tadao Nakata ,  Masato Isogai ,  Teruo Kitamura ,  Akio Mukoh ,  Yasuhiko Kando

发明人： Hisao Yokokura ,  Katsumi Kondo ,  Yasuo Hanawa ,  Susumu Era ,  Kishiro Iwasaki ,  Tadao Nakata ,  Masato Isogai ,  Teruo Kitamura ,  Akio Mukoh ,  Yasuhiko Kando

IPC分类号： G02F1/1333 ,  G02F1/1337 ,  G02F1/141 ,  G02F1/13

CPC分类号： G02F1/133345 ,  G02F1/133711 ,  G02F1/141 ,  Y10T428/1059

摘要： The element comprises a pair of transparent substrates, a pair of light-transmitting electrodes each provided on the respective substrates, a ferroelectric liquid crystal layer disposed between the pair of substrates and orientation control films for the molecules of the ferroelectric liquid crystal provided between the electrodes and the ferroelectric liquid crystal layer. The orientation control film controls a tile angle of a biphenyle series nematic liquid crystal having biphenyl ring system below 1.5.degree. and causes a uniform molecule orientation characteristic and a memory property for the ferroelectric liquid crystal element of smectic C* liquid crystal and having a liquid crystal layer thickness of even more than 4 .mu.m.

摘要翻译： 该元件包括一对透明基板，各自设置在各个基板上的一对透光电极，设置在一对基板之间的铁电液晶层和设置在电极之间的铁电液晶分子的取向控制膜 和铁电液晶层。 取向控制膜控制具有低于1.5°的联苯环系的联苯系列向列型液晶的平铺角度，并且对近晶C *液晶的铁电液晶元件具有均匀的分子取向特性和记忆特性，并具有液晶 层厚度甚至超过4μm。

公开(公告)号：USRE34885E

公开(公告)日：1995-03-28

申请号：US905407

申请日：1992-06-29

申请人： Hisao Yokokura ,  Tadao Nakata ,  Susumu Era ,  Yasuo Hanawa ,  Kishiro Iwasaki ,  Teruo Kitamura ,  Akio Mukoh ,  Toshikazu Narahara ,  Yasuhiko Kando ,  Shunichi Numata ,  Kooji Fujisaki

发明人： Hisao Yokokura ,  Tadao Nakata ,  Susumu Era ,  Yasuo Hanawa ,  Kishiro Iwasaki ,  Teruo Kitamura ,  Akio Mukoh ,  Toshikazu Narahara ,  Yasuhiko Kando ,  Shunichi Numata ,  Kooji Fujisaki

IPC分类号： G02F1/133 ,  C08G73/10 ,  G02F1/1337 ,  G02F1/139 ,  G02F1/13 ,  C09K19/52

CPC分类号： C08G73/1039 ,  C08G73/105 ,  G02F1/133723 ,  G02F1/1397 ,  Y10T428/1014 ,  Y10T428/1023

摘要： A liquid crystal display element comprising a pair of substrates, a pair of electrodes provided on the respective substrates, at least one of which is transparent and a liquid crystal layer disposed between said substrates, the liquid crystal layer comprising a nematic liquid crystal, which exhibits a positive dielectric constant anisotropy and contains an optically active substance, the liquid crystal moleccule orientation direction in the liquid crystal layer is twisted in the range of 200.degree. to 250.degree. from the one substrate surface toward the other substrate surface so as to form a helical structure therein. A polyimide orientation film is provided between the electrodes and the liquid crystal layer. The polyimide orientation film is one made of a polyimide prepared by reacting a diamine compound having a long-chain hydrocarbon group or a diamine compound having a trifluoromethyl group with a tetracarboxylic dianhydride and causes a pretilt angle of at least 3.degree. relative to the nematic liquid crystal molecules. The liquid crystal display element of the present invention is free from a scattering domain.

公开(公告)号：US4781439A

公开(公告)日：1988-11-01

申请号：US5899

申请日：1987-01-22

申请人： Hisao Yokokura ,  Tadao Nakata ,  Susumu Era ,  Yasuo Hanawa ,  Kishiro Iwasaki ,  Teruo Kitamura ,  Akio Mukoh ,  Toshikazu Narahara ,  Yasuhiko Kando ,  Shunichi Numata ,  Kooji Fujisaki

发明人： Hisao Yokokura ,  Tadao Nakata ,  Susumu Era ,  Yasuo Hanawa ,  Kishiro Iwasaki ,  Teruo Kitamura ,  Akio Mukoh ,  Toshikazu Narahara ,  Yasuhiko Kando ,  Shunichi Numata ,  Kooji Fujisaki

IPC分类号： G02F1/133 ,  C08G73/10 ,  G02F1/1337 ,  G02F1/139

CPC分类号： C08G73/1039 ,  C08G73/105 ,  G02F1/133723 ,  G02F1/1397 ,  Y10T428/1014 ,  Y10T428/1023

摘要： A liquid crystal display element comprising a pair of substrates, a pair of electrodes provided on the respective substrates, at least one of which is transparent and a liquid crystal layer disposed between said substrates, the liquid crystal layer comprising a nematic liquid crystal, which exhibits a positive dielectric constant anisotropy and contains an optically active substance, the liquid crystal moleccule orientation direction in the liquid crystal layer is twisted in the range of 200.degree. to 250.degree. from the one substrate surface toward the other substrate surface so as to form a helical structure therein. A polyimide orientation film is provided between the electrodes and the liquid crystal layer. The polyimide orientation film is one made of a polyimide prepared by reacting a diamine compound having a long-chain hydrocarbon group or a diamine compound having a trifluoromethyl group with a tetracarboxylic dianhydride and causes a pretilt angle of at least 3.degree. relative to the nematic liquid crystal molecules. The liquid crystal display element of the present invention is free from a scattering domain.

摘要翻译： 一种液晶显示元件，包括一对基板，一对电极，设置在各个基板上，其中至少一个是透明的，并且液晶层设置在所述基板之间，所述液晶层包括向列型液晶， 正介电常数各向异性，并含有光学活性物质，液晶层中的液晶分子取向方向从一个基板表面向另一个基板表面扭曲在200°至250°的范围内，从而形成螺旋 结构。 在电极和液晶层之间设置聚酰亚胺取向膜。 聚酰亚胺取向膜是由具有长链烃基的二胺化合物或具有三氟甲基的二胺化合物与四羧酸二酐反应制备的聚酰亚胺制成的，并且相对于向列液体产生至少3度的预倾角 晶体分子。 本发明的液晶显示元件没有散射域。

公开(公告)号：US5020883A

公开(公告)日：1991-06-04

申请号：US263982

申请日：1988-10-27

申请人： Susumu Era ,  Kishiro Iwasaki ,  Hisao Yokokura ,  Yasuo Hanawa ,  Katsumi Kondo ,  Tadao Nakada ,  Teruo Kitamura ,  Akio Mukoh

发明人： Susumu Era ,  Kishiro Iwasaki ,  Hisao Yokokura ,  Yasuo Hanawa ,  Katsumi Kondo ,  Tadao Nakada ,  Teruo Kitamura ,  Akio Mukoh

IPC分类号： C08G73/00 ,  C08G73/10 ,  G02F1/133 ,  G02F1/1337

CPC分类号： G02F1/133711 ,  C09K19/0225 ,  C09K19/2021

摘要： A ferroelectric liquid crystal device which comprises at least one pair of counterposed substrates, a ferroelectric liquid crystal material provided between the substrates, means for applying an electric field to the liquid crystal material and provided at the substrates, an alignment-controlling layer provided on the surface on the liquid crystal material side of each of the substrates, and a sealing member at the peripheral edges of the substrates, the alignment-controlling layer being a film of an organic polymer whose .beta. dispersion temperature is higher than the curing temperature of a sealant for the sealing member, preferably at least 200.degree. C., has a good alignment state of ferroelectric liquid crystal molecules achieved by cooling alone without any application of an electric field and has good display qualities such as a high contrast.

摘要翻译： 一种强电介质液晶装置，包括至少一对相对的基板，设置在基板之间的铁电液晶材料，用于向液晶材料施加电场并设置在基板上的装置，设置在基板上的对准控制层 每个基板的液晶材料侧的表面以及基板的周缘处的密封构件，该取向控制层是其分散温度高于密封剂的固化温度的有机聚合物的膜 对于密封构件，优选至少200℃，具有通过单独冷却实现的铁电液晶分子的良好取向状态，而不施加电场，并且具有良好的显示质量，例如高对比度。

公开(公告)号：US4653866A

公开(公告)日：1987-03-31

申请号：US735608

申请日：1985-05-20

申请人： Susumu Era ,  Hisao Yokokura ,  Kishiro Iwasaki ,  Tadao Nakata ,  Teruo Kitamura ,  Akio Mukoh

发明人： Susumu Era ,  Hisao Yokokura ,  Kishiro Iwasaki ,  Tadao Nakata ,  Teruo Kitamura ,  Akio Mukoh

IPC分类号： C09K19/28 ,  C09K19/44 ,  C09K19/46 ,  C09K19/06 ,  C07C153/00 ,  C07C154/00 ,  C09K19/12 ,  G02F1/13

CPC分类号： C09K19/46 ,  C09K19/28 ,  C09K19/44

摘要： A liquid crystal compound of the formula: R.sub.2 --X.sub.1 --Y.sub.1 --C(O)S--Y.sub.2 --Z, wherein R.sub.2 is preferably C.sub.7-14 alkyl; X.sub.1 is --COO-- or --OCO; ##STR1## and Z is --NO.sub.2 or --CN, shows a smectic phase, is large in positive delectric anisotropy and can give a liquid crystal composition suitable for use in a thermal address display device.

摘要翻译： 一种下式的液晶化合物：R2-X1-Y1-C（O）S-Y2-Z，其中R2优选为C7-14烷基; X1是-COO-或-OCO; 并且Z是-NO 2或-CN，表现出近晶相，正向各向异性大，可以得到适用于热地址显示装置的液晶组合物。

公开(公告)号：US4634228A

公开(公告)日：1987-01-06

申请号：US729420

申请日：1984-05-01

申请人： Kishiro Iwasaki ,  Susumu Era ,  Hisao Yokokura ,  Tadao Nakata ,  Akio Mukoh

发明人： Kishiro Iwasaki ,  Susumu Era ,  Hisao Yokokura ,  Tadao Nakata ,  Akio Mukoh

IPC分类号： C08G73/10 ,  C09K19/02 ,  G02F1/1337 ,  G02F1/13

CPC分类号： C08G73/105 ,  C08G73/1067 ,  C08G73/1071 ,  C09K19/0225 ,  G02F1/133723 ,  Y10T428/1023 ,  Y10T428/31721

摘要： Orientation control films are coated on a pair of transparent substrates on the side contiguous to the ferroelectric liquid crystal layer and rubbed for aligning molecules thereof. The films are made of a polyimide polymer prepared by ring closure by heating and dehydrating of a polyamic acid which is synthesized by condensing, for example, pyromellitic dianhydride with 4,4'-diaminoterphenyl. A contrast ratio of the ferroelectric liquid crystal element is improved while keeping a high response characteristic of the ferroelectric liquid crystal materials.

摘要翻译： 将取向控制膜涂覆在与铁电液晶层相邻的一侧的一对透明基板上，并摩擦以使其分子对准。 膜由聚酰胺聚合物制成，通过加热和脱水聚酰胺酸制备，该聚酰胺聚合物是通过将4,4'-二氨基苯基与1,2,4,5-苯四酸二酐缩合而合成的。 强化铁电液晶元件的对比度提高，同时保持铁电液晶材料的高响应特性。

公开(公告)号：US4645305A

公开(公告)日：1987-02-24

申请号：US674325

申请日：1984-11-23

申请人： Hisao Yokokura ,  Susumu Era ,  Hidetoshi Abe ,  Tadao Nakata ,  Teruo Kitamura ,  Akio Mukoh

发明人： Hisao Yokokura ,  Susumu Era ,  Hidetoshi Abe ,  Tadao Nakata ,  Teruo Kitamura ,  Akio Mukoh

IPC分类号： C09K19/12 ,  C07C67/00 ,  C07C201/00 ,  C07C205/42 ,  C07C205/43 ,  C07C205/57 ,  C09K19/20 ,  C09K19/30 ,  G02F1/13

CPC分类号： C09K19/3068 ,  C07C205/42 ,  C07C205/43 ,  C07C205/57 ,  C09K19/2007

摘要： The present liquid crystal compounds are novel ester-type compounds showing a smectic liquid crystal phase and being capable of increasing a dielectric constant anisotropy, represented by the following general formula: R--X.sub.1 --Y.sub.1 --X.sub.2 --Y.sub.2 --NO.sub.2, wherein R is an alkyl group; X.sub.1 and X.sub.2 are the same or different from each other and are group --COO-- and --OOC--, and when X.sub.1 is group --COO--, ##STR1## The present liquid composition contains the novel compound, and the present liquid crystal display device uses the liquid crystal composition for utilizing the characteristics of the novel compound. Particularly, the present liquid crystal display device is a thermally addressed display device.

摘要翻译： 本发明的液晶化合物是新型酯型化合物，其显示出近晶相结构，并能够提高介电常数各向异性，由以下通式表示：R-X1-Y1-X2-Y2-NO2，其中R为 烷基; X1和X2彼此相同或不同，为-COO-和-OOC-基团，当X1为-COO-时， + TR 目前 液体组合物含有新化合物，本液晶显示装置利用该新型化合物的特征的液晶组合物。 特别地，本液晶显示装置是热寻址显示装置。

公开(公告)号：US5220447A

公开(公告)日：1993-06-15

申请号：US494551

申请日：1990-03-16

申请人： Hisao Yokokura ,  Teruo Kitamura ,  Akio Mukoh ,  Junichi Hirakata ,  Yasuhiko Kando ,  Isoji Sakai ,  Yasuo Fujimura ,  Noboru Masutani

发明人： Hisao Yokokura ,  Teruo Kitamura ,  Akio Mukoh ,  Junichi Hirakata ,  Yasuhiko Kando ,  Isoji Sakai ,  Yasuo Fujimura ,  Noboru Masutani

IPC分类号： G02F1/133 ,  B01J19/00 ,  B29C41/24 ,  C08J5/18 ,  G02B5/30 ,  G02F1/1335 ,  G02F1/13363 ,  G02F1/137 ,  G02F1/139

CPC分类号： G02B5/3083 ,  B29C55/00 ,  B29D11/0074 ,  G02F1/13363 ,  G02F1/133636 ,  B29K2105/0079 ,  G02F1/1397 ,  G02F2202/40 ,  G02F2413/01

摘要： A liquid crystal display device comprising: a liquid crystal display element formed by holding, between two substrates at least one of which has a light-permeable electrode, a liquid crystal layer in which liquid crystal molecules of a nematic liquid crystal having positive dielectric anisotropy and containing an optically active substance has a helical axis perpendicular to the substrates between the substrates and are helically oriented, and the liquid crystal molecules between the substrates have a twist angle of 180 to 270 degrees, and a phase plate formed by stacking water surface development films of an organic polymer with changing the orientation axes thereof at a constant angle, wherein the contrast ratio, a ratio between brightness in white display and brightness in black display, is remarkably excellent over that of a device obtained by stacking plastic films, and the transmissivity, a quotient of background brightness and light source brightness, is equivalent to that of a conventional double layer structure liquid crystal display device.

摘要翻译： 一种液晶显示装置，包括：液晶显示元件，其通过在其中至少一个具有透光性电极的两个基板之间保持其液晶层，其中具有正介电各向异性的向列型液晶的液晶分子和 含有光学活性物质的螺旋轴具有垂直于基板之间的基板的螺旋轴并且被螺旋取向，并且基板之间的液晶分子具有180至270度的扭曲角度，并且通过将水表面显影膜 的有机聚合物以恒定角度改变其取向轴，其中对比度，白色显示中的亮度与黑色显示中的亮度之间的比例，显着优于通过堆叠塑料膜获得的装置的透射率 ，背景亮度和光源亮度的商相当于a 常规双层结构液晶显示装置。

公开(公告)号：US5067797A

公开(公告)日：1991-11-26

申请号：US326557

申请日：1989-03-21

申请人： Hisao Yokokura ,  Tadao Nakada ,  Teruo Kitamura ,  Akio Mukoh ,  Yasuhiko Kando ,  Isoji Sakai ,  Yasuo Fujimura ,  Noboru Masutani ,  Tsunetaka Matsumoto ,  Yasuo Imanishi

发明人： Hisao Yokokura ,  Tadao Nakada ,  Teruo Kitamura ,  Akio Mukoh ,  Yasuhiko Kando ,  Isoji Sakai ,  Yasuo Fujimura ,  Noboru Masutani ,  Tsunetaka Matsumoto ,  Yasuo Imanishi

IPC分类号： C09K19/12 ,  C09K19/20 ,  C09K19/30 ,  C09K19/40 ,  G02F1/1337

CPC分类号： B82Y30/00 ,  C09K19/12 ,  C09K19/2007 ,  C09K19/2021 ,  C09K19/30 ,  C09K19/408 ,  G02F1/133711 ,  C09K2019/0448 ,  G02F2001/133726

摘要： A liquid crystal display cell, wherein orientation films are made of an organic polymer such as polyimide, polyamide, liquid crystal polymer having one or more mesogen groups in a main chain or side chain and produced by spreading an organic polymer solution on a water surface, is excellent in memory properties and contrast and generates no static electricity, no short circuit between electrodes and no breaking of electrodes.

摘要翻译： 一种液晶显示单元，其中取向膜由聚酰亚胺，聚酰胺，主链或侧链中具有一个或多个介晶基的液晶聚合物等有机聚合物制成，并通过在水面上铺展有机聚合物溶液而制成， 记忆特性和对比度优异，不产生静电，电极之间无短路，无电极断裂。

公开(公告)号：US4584120A

公开(公告)日：1986-04-22

申请号：US610439

申请日：1984-05-15

申请人： Tsunenori Fujii ,  Kenji Suzuki ,  Masahiro Yoshida ,  Hisashi Okawa ,  Kaoru Koto ,  Hideki Ohmori ,  Hisao Yokokura ,  Yoshiaki Okabe ,  Shintaroo Hattori ,  Teruo Kitamura ,  Akio Mukoh ,  Mikio Sato

发明人： Tsunenori Fujii ,  Kenji Suzuki ,  Masahiro Yoshida ,  Hisashi Okawa ,  Kaoru Koto ,  Hideki Ohmori ,  Hisao Yokokura ,  Yoshiaki Okabe ,  Shintaroo Hattori ,  Teruo Kitamura ,  Akio Mukoh ,  Mikio Sato

IPC分类号： C07C69/753 ,  C07C69/76 ,  C07C69/773 ,  C09K19/12 ,  C09K19/20 ,  C09K19/30 ,  C09K19/46 ,  C09K19/54 ,  G02F1/13 ,  C07C69/75

CPC分类号： C09K19/3068 ,  C09K19/2007

摘要： The liquid crystal compound of this invention is characterized by having the general formula.R--X--X'--COO--Y--Y'--R'wherein R and R' each represent an alkyl group, and X, X', Y and Y' each represent ##STR1##

摘要翻译： 本发明的液晶化合物的特征在于具有通式。 R-X-X'-COO-Y-Y'-R'其中R和R'各自表示烷基，X，X'，Y和Y'各自表示