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21. 发明授权

US4820026A Ferroelectric liquid crystal device with modified polyvinyl alcohol alignment film 失效
标题翻译：具有改性聚乙烯醇取向膜的铁电液晶装置
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。

22. 发明授权

US5414542A Liquid crystal apparatus 失效
标题翻译：液晶装置
公开(公告)号：US5414542A
公开(公告)日：1995-05-09
申请号：US985232
申请日：1992-12-02
申请人： Hideyuki Kawagishi , Takashi Enomoto , Hirofumi Iwamoto
发明人： Hideyuki Kawagishi , Takashi Enomoto , Hirofumi Iwamoto
IPC分类号： G02F1/1333 , G02F1/1335 , G02F1/13357 , G02F1/1343 , G02F1/13
CPC分类号： G02F1/1335 , G02F1/13439
摘要： A liquid crystal apparatus includes a liquid crystal cell comprising a pair of substrates each having thereon a transparent electrode with a thickness of 840 .ANG. or less, 1320-1680 .ANG., 1960-2470 .ANG. or 3180-3850 .ANG., and a liquid crystal layer disposed between the pair of substrates in a thickness of 10 microns or less; and a fluorescent light source comprising at least two types of fluophors having different emission peak wavelengths. The liquid crystal may preferably be a ferroelectric liquid crystal having a thickness of 5 microns or less. A dielectric film of, e.g., Ta.sub.2 O.sub.5 or TiO.sub.2 having a larger refractive index than the transparent electrode may be disposed.
摘要翻译：一种液晶显示装置，包括一个液晶单元，该液晶单元包括一对基板，每个基板上具有厚度为840或更小的透明电极，1320-1680，1960-2470，3180-3850，和一个液晶层，在一对基板之间，厚度为10微米或更小; 以及包括具有不同发射峰值波长的至少两种类型的荧光体的荧光光源。液晶优选为厚度为5微米以下的铁电液晶。可以设置例如具有比透明电极更大的折射率的Ta 2 O 5或TiO 2的电介质膜。

23. 发明授权

US5239398A Liquid crystal device with phenylenevinylene or phenylene sulfide alignment films having particular high electrical conductivity 失效
标题翻译：具有亚乙烯基或具有特殊高导电性的苯乙烯硫化物对准膜的液晶装置
公开(公告)号：US5239398A
公开(公告)日：1993-08-24
申请号：US668209
申请日：1991-03-12
申请人： Yoshihiro Yanagisawa , Hiroshi Matsuda , Hideyuki Kawagishi , Ken Eguchi
发明人： Yoshihiro Yanagisawa , Hiroshi Matsuda , Hideyuki Kawagishi , Ken Eguchi
IPC分类号： G02F1/1337
CPC分类号： G02F1/133711 , C09K19/2021 , C09K2019/2035 , C09K2019/2042 , Y10T428/1005 , Y10T428/1095
摘要： A liquid crystal device comprises a pair of opposing substrates and a liquid crystal rendering a chiral smectic phase, disposed between said pair of substrates, wherein at least one of the substrates is provided with an alignment film comprising a polymer containing a skeleton selected from the group consisting of acetylene, phenylene, phenylenevinylene, phenylenexylidene, benzyl, phenylene sulfide, dimethylparaphenylene sulfide, thienylene, furan, selenophene, vinylpyridine, vinylnaphthalene, vinylferrocene, vinylcarbazole, phenylene oxide, phenylene selenide, heptadiyne, benzothiophene, thiophene, pyrrole, aniline and naphthylene. The liquid crystal device is used for a display system and effects a high contrast display without after-image.

24. 发明授权

US5136282A Ferroelectric liquid crystal apparatus having separate display areas and driving method therefor 失效
标题翻译：具有分开显示区域的铁电液晶装置及其驱动方法
公开(公告)号：US5136282A
公开(公告)日：1992-08-04
申请号：US450817
申请日：1989-12-14
申请人： Yutaka Inaba , Hiroyuki Kitayama , Hideyuki Kawagishi
发明人： Yutaka Inaba , Hiroyuki Kitayama , Hideyuki Kawagishi
IPC分类号： G02F1/133 , G09G3/36
CPC分类号： G09G3/3644 , G09G3/3629 , G09G2310/04 , G09G2310/06
摘要： A ferroelectric liquid crystal apparatus of the matrix type which includes a display portion provided with separate display areas which are arranged to be independently driven and a method of driving such a ferroelectric liquid crystal apparatus. In the method, dummy signals are applied to signal electrodes of one of the separate display areas while the other display area is being scanned in order to reduce differences in contrast.
摘要翻译：一种矩阵型的铁电液晶装置，其具有设置有独立驱动的分离的显示区域的显示部分和驱动这种铁电液晶装置的方法。在该方法中，虚拟信号被施加到单独的显示区域中的一个的信号电极，而另一个显示区域被扫描以减少对比度的差异。

25. 发明授权

US4958912A Image forming apparatus 失效
公开(公告)号：US4958912A
公开(公告)日：1990-09-25
申请号：US215791
申请日：1988-07-06
申请人： Yutaka Inaba , Hideyuki Kawagishi , Makoto Kojima , Shuzo Kaneko
发明人： Yutaka Inaba , Hideyuki Kawagishi , Makoto Kojima , Shuzo Kaneko
IPC分类号： G06K15/12 , H04N1/195 , H04N1/40
CPC分类号： H04N1/1951 , G06K15/1252 , H04N1/19505 , H04N1/19547 , H04N1/40031
摘要： An image forming apparatus includes a light source; an optical shutter unit comprising a pair of parallel substrates respectively having a plurality of scanning electrodes and a plurality of data electrodes disposed to intersect with each other to form a matrix electrode structure on their opposite surfaces, and a ferroelectric liquid crystal disposed between the pair of substrates so as to form a microshutter at each intersection of the scanning electrodes and data electrodes; an optical system for forming an image at a desired position with light transmitted through the optical shutter unit; a photosensitive member as a medium for recording the thus formed image; a scanning side drive circuit for applying a scanning voltage signal to the plurality of scanning electrodes so as to sequentially select at least one scanning electrode in a prescribed cycle; and a data side drive unit for applying data voltage signals to the plurality of data electrodes in synchronism with said scanning voltage signal. Image data are transferred on the optical shutter unit corresponding to the movement of the photosensitive member so as to move an image formed thereby on the photosensitive member while keeping the relative position of the image with respect to the photosensitive member.

26. 发明授权

US4932758A Ferroelectric smectic liquid crystal device having a bistable alignment state providing two stable orientation states 失效
标题翻译：具有提供两个稳定取向状态的双稳态对准状态的铁电近晶体液晶器件
公开(公告)号：US4932758A
公开(公告)日：1990-06-12
申请号：US245644
申请日：1988-09-16
申请人： Yukio Hanyu , Junichiro Kanbe , Hideyuki Kawagishi , Yutaka Inaba
发明人： Yukio Hanyu , Junichiro Kanbe , Hideyuki Kawagishi , Yutaka Inaba
IPC分类号： G02F1/141
CPC分类号： G02F1/1416
摘要： A ferroelectric smectic liquid crystal device having an improved impact resistance and an improved contrast is provided by using a pair of substrates provided with uniaxial alignment axes which are parallel and identical in direction with each other. A ferroelectric smectic liquid crystal is disposed between the pair of substrates so as to assume a higher-temperature alignment state and a lower-temperature alignment state on temperature decrease in its ferroelectric smectic phase placed in a bistable alignment state. The ferroelectric smectic liquid crystal is further placed in the lower-temperature alignment state which is characterized by having an inclination of forming a connected pair of a lightning defect and a hair pin defect coming after the lightning defect.
摘要翻译：通过使用设置有彼此平行且相同方向的单轴取向轴的一对基板来提供具有改善的耐冲击性和改善的对比度的铁电体液晶器件。在一对基板之间设置有铁电体相液晶，以便在双稳态取向状态下，其铁电体层状相中的温度降低呈现较高的取向状态和较低温度取向状态。强电体层状液晶进一步置于低温取向状态，其特征在于具有形成与闪电缺陷相对应的雷电缺陷和发针缺陷的一对连接的倾斜。

27. 发明授权

US06304310B1 Liquid crystal apparatus 失效
标题翻译：液晶装置
公开(公告)号：US06304310B1
公开(公告)日：2001-10-16
申请号：US07975140
申请日：1992-11-12
申请人： Hideyuki Kawagishi , Yutaka Inaba
发明人： Hideyuki Kawagishi , Yutaka Inaba
IPC分类号： G02F1141
CPC分类号： G02F1/141
摘要： An liquid crystal apparatus, includes: (a) a liquid crystal device including: a pair of substrates each provided with a uniaxial alignment axis, and a chiral smectic liquid crystal having a negative dielectric anisotropy disposed between the pair of substrates and capable of forming a higher-temperature bistable alignment state and a lower-temperature bistable alignment state in its chiral smectic C phase, the chiral smectic liquid crystal being further placed in the lower-temperature bistable alignment state formed by cooling from the higher-temperature bistable alignment state; and (b) voltage application means including: an AC voltage application means for applying to the chiral smectic liquid crystal an AC voltage insufficient to cause a switching from one to the other or from the other to one of the bistable alignment state, and a switching voltage application means for applying to the chiral smectic liquid crystal a voltage of one polarity sufficient to cause a switching from one to the other of the bistable alignment state and a voltage of the other polarity sufficient to cause a switching from the other to one of the bistable alignment state.
摘要翻译：一种液晶装置，包括：（a）一种液晶装置，包括：一对基板，每个基板均具有单轴取向轴;和一个具有负的介电各向异性的手性近晶液晶，设置在所述一对基板之间并且能够形成在其手性近晶C相中的高温双稳态取向状态和低温双稳态取向状态，手性近晶液晶进一步置于通过从较高温度双稳态取向状态冷却而形成的低温双稳态取向状态; 和（b）电压施加装置，包括：AC电压施加装置，用于向手性近晶液晶施加不足以导致从一个切换到另一个或另一个切换到双稳态对准状态之一的AC电压，以及切换电压施加装置，用于向手性近晶液晶施加足以引起双稳态取向状态中的一个至另一个的一个极性的电压和足以引起从另一个极性切换到另一个的另一个极性的电压双稳态对准状态。

28. 发明授权

US5289175A Method of and apparatus for driving ferroelectric liquid crystal display device 失效
标题翻译：铁电液晶显示装置的驱动方法及装置
公开(公告)号：US5289175A
公开(公告)日：1994-02-22
申请号：US942130
申请日：1992-09-08
申请人： Hideyuki Kawagishi
发明人： Hideyuki Kawagishi
IPC分类号： G09G3/36
CPC分类号： G09G3/3629 , G09G2320/0209
摘要： A method and an apparatus of driving a ferroelectric liquid crystal display device are provided having N scanning electrodes, and M data electrodes arranged in the form of an N.times.M matrix, N and M being positive integers, and a pixel being formed at each intersection of the scanning electrodes and the data electrodes of the matrix. The method comprises the step of applying a selected scanning signal to a Kth selected scanning electrode in a time period, wherein K is a positive integer and K.ltoreq.N. A selected data signal is applied to a data electrode in the time period to form a synthetic voltage at a selected pixel, and an auxiliary signal voltage is applied to a (K-A) scanning electrode in the time period, wherein A is a positive integer and 1
摘要翻译：提供一种驱动铁电液晶显示装置的方法和装置，其具有N个扫描电极，M个数据电极以N * M矩阵的形式排列，N和M为正整数，并且在每个交叉点形成像素的扫描电极和数据电极。该方法包括在一个时间段内将所选择的扫描信号施加到第K个选择的扫描电极的步骤，其中K是正整数，K <= N。所选择的数据信号在该时间段内施加到数据电极，以形成选定像素的合成电压，并且在该时间段内对（KA）扫描电极施加辅助信号电压，其中A为正整数， 1

29. 发明授权

US5035491A Liquid crystal apparatus 失效
标题翻译：液晶装置
公开(公告)号：US5035491A
公开(公告)日：1991-07-30
申请号：US503678
申请日：1990-04-03
申请人： Hideyuki Kawagishi , Hirofumi Iwamoto , Akira Tsuboyama , Tadashi Mihara
发明人： Hideyuki Kawagishi , Hirofumi Iwamoto , Akira Tsuboyama , Tadashi Mihara
IPC分类号： G02F1/1335 , G02F1/141
CPC分类号： G02F1/141 , G02F2001/133531
摘要： A liquid crystal apparatus, comprising: a liquid crystal cell comprising a pair of substrates, and a chiral smectic liquid crystal showing at least two different optically stable states formed by cooling from a uniaxial alignment phase and disposed between the substrates; and a polarizer and an analyzer disposed to sandwiched the liquid crystal cell; wherein the chiral smectic liquid crystal, polarizer and analyzer are disposed to satisfy any one of the following sets of conditions I-IV characterized by combination of X, Y and Z directions shown below:______________________________________ X Y Z ______________________________________ I clockwise counterclockwise perpendicular II clockwise clockwise parallel III counterclockwise counterclockwise parallel IV counterclockwise clockwise perpendicular ______________________________________ with proviso that the chiral smectic liquid crystal is disposed so that the long axes of the chiral smectic liquid crystal molecules are aligned with a twist in the X direction along the direction from the polarizer toward the analyzer to form an average molecular long axis proving one optically stable state, and when the average molecular long axis is switched to provide another optically stable state latched in the Y direction with respect to the direction from the analyzer toward the polarizer, the polarizer is disposed to have an electric vector transmission axis which is substantially in the Z direction with respect to the average molecular long axis.

30. 发明授权

US5013137A Ferroelectric liquid crystal device having increased tilt angle 失效
标题翻译：铁电液晶装置具有增加的倾斜角度
公开(公告)号：US5013137A
公开(公告)日：1991-05-07
申请号：US309034
申请日：1989-02-02
申请人： Akira Tsuboyama , Yutaka Inaba , Hiroyuki Kitayama , Shinjiro Okada , Osamu Taniguchi , Hideyuki Kawagishi , Yukio Hanyu
发明人： Akira Tsuboyama , Yutaka Inaba , Hiroyuki Kitayama , Shinjiro Okada , Osamu Taniguchi , Hideyuki Kawagishi , Yukio Hanyu
IPC分类号： G02F1/1337 , G02F1/141 , G09G3/36
CPC分类号： G02F1/133711 , G02F1/141 , G09G3/3629 , G09G3/3681 , G09G3/3692 , G09G2310/06
摘要： A ferroelectric liquid crystal device comprising a pair of substrates each provided with an electrode thereon, and a ferroelectric liquid crystal layer disposed between the substrates in a thickness which is thin enough to release the spiral structure of the ferroelectric liquid crystal, wherein the ferroelectric liquid crystal provides two average molecular axis directions forming an angle 2.theta. therebetween, each average molecular axis direction corresponding to one or two stable orientation states of the ferroelectric liquid crystal, the ferroelectric liquid crystal provides two average molecular axis directions forming an angle 2 .circle.H therebetween when voltages exceeding the threshold voltage of the ferroelectric liquid crystal are applied to the ferroelectric liquid crystal, and the ferroelectric liquid crystal provides two average molecular directions forming an angle 2.theta.a therebetween after applying an alternating electric field to the ferroelectric liquid crystal and removing the electric field, the angles .theta., .circle.H and .theta.a satisfying the relationships of: .theta.
摘要翻译：一种强电介质液晶器件，其特征在于，具有在其上设置有电极的一对基板和设置在所述基板之间的铁电液晶层，所述强电介质液晶层的厚度足够薄以释放所述铁电液晶的螺旋结构，其中，所述强电介质液晶提供两个平均分子轴方向，其间形成角度2θ，每个平均分子轴方向对应于铁电液晶的一个或两个稳定的取向状态，铁电液晶提供两个平均分子轴方向，其间形成两个角度2＆cir＆H，电压超过铁电液晶的阈值电压的电压施加到铁电液晶上，并且铁电液晶在向铁电液晶施加交变电场之后提供两个平均分子方向，形成角度θθ，去除电场，满足以下关系的角度θ，θc和θ和θa：θθθ=θc和H。

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