公开(公告)号：US06128064A

公开(公告)日：2000-10-03

申请号：US353154

申请日：1999-07-14

申请人： Takashi Moriyama ,  Takao Takiguchi ,  Yukio Hanyu ,  Koichi Sato ,  Masahiro Terada ,  Shinichi Nakamura ,  Yasufumi Asao ,  Koji Noguchi ,  Yasushi Shimizu

发明人： Takashi Moriyama ,  Takao Takiguchi ,  Yukio Hanyu ,  Koichi Sato ,  Masahiro Terada ,  Shinichi Nakamura ,  Yasufumi Asao ,  Koji Noguchi ,  Yasushi Shimizu

IPC分类号： C09K19/34 ,  G02F1/1337 ,  G02F1/141 ,  C09K19/02 ,  G02F1/1333

CPC分类号： G02F1/141 ,  C09K19/3463 ,  G02F1/133723 ,  Y10T428/1023

摘要： A liquid crystal device is constituted by a chiral smectic liquid crystal and a pair of substrates sandwiching the chiral smectic liquid crystal therebetween and each having thereon an electrode for applying a voltage to the liquid crystal. At least one of the substrates being provided with an alignment control film comprising a specific aromatic polyimide which has been subjected to a uniaxial aligning treatment. The chiral smectic liquid crystal assumes bistability in a chiral smectic temperature range when incorporated in a test cell which is not provided with an alignment control film and has been subjected to shearing treatment. In the liquid crystal device including the polyimide alignment control film, the chiral smectic liquid crystal at least has a voltage-transmittance characteristic such that an effective tilt angle and a transmittance continuously change depending on an electric field applied thereto.

摘要翻译： 液晶装置由手性近晶液晶和夹在其间的手性近晶液晶的一对基板构成，并具有用于向液晶施加电压的电极。 至少一个基板设置有包含已经进行单轴对准处理的特定芳族聚酰亚胺的取向控制膜。 手性近晶液晶在手性近晶温度范围内呈现双重稳定性，当并入未设置取向控制膜并进行剪切处理的测试电池中时。 在包括聚酰亚胺取向控制膜的液晶装置中，手性近晶液晶至少具有电压 - 透射特性，使得有效倾斜角和透射率根据施加到其上的电场而不断变化。

公开(公告)号：US5932136A

公开(公告)日：1999-08-03

申请号：US733773

申请日：1996-10-18

申请人： Masahiro Terada ,  Yukio Hanyu ,  Koichi Sato ,  Hirokatsu Miyata ,  Syuji Yamada ,  Yasufumi Asao ,  Takashi Moriyama

发明人： Masahiro Terada ,  Yukio Hanyu ,  Koichi Sato ,  Hirokatsu Miyata ,  Syuji Yamada ,  Yasufumi Asao ,  Takashi Moriyama

IPC分类号： C09K19/02 ,  C09K19/04 ,  G02F1/141 ,  C09K19/52 ,  G02F1/1333

CPC分类号： C09K19/0225 ,  C09K19/04 ,  G02F1/1416 ,  Y10T428/1014

摘要： A liquid crystal device is constituted by a pair of substrates each having thereon an electrode, and a smectic liquid crystal having a plurality of smectic liquid crystal layers disposed between the substrates. The smectic liquid crystal is disposed to form a first region wherein the smectic liquid crystal layers are aligned to have a layer inclination angle smaller than a calculated layer inclination angle based on a temperature-dependent layer spacing-changing characteristic or are aligned in a direction perpendicular to the substrates to form a bookshelf structure, and a second region wherein the smectic liquid crystal layers are aligned to form a chevron structure having a substantial layer inclination angle or having a layer inclination angle substantially equal to a calculated layer inclination angle based on a temperature-dependent layer spacing-changing characteristic. The liquid crystal device having the first an second regions described above is effective in improving a contrast ratio and a driven margin parameter.

摘要翻译： 液晶装置由各自具有电极的一对基板和具有设置在基板之间的多个近晶液晶层的近晶液晶构成。 将近晶液晶设置成形成第一区域，其中基于温度依赖层间距变化特性，近晶液晶层被排列成具有小于计算的层倾斜角的层倾斜角，或者在垂直方向 以形成书架结构，以及第二区域，其中所述近晶体液晶层被排列以形成具有基本层倾斜角度的或具有基于温度的计算的层倾斜角度的层倾斜角度的人字纹结构 依赖层间距变化特征。 具有上述第一和第二区域的液晶装置在提高对比度和驱动余量参数方面是有效的。

公开(公告)号：US6083574A

公开(公告)日：2000-07-04

申请号：US123330

申请日：1998-07-28

申请人： Yasufumi Asao ,  Yukio Hanyu ,  Koichi Sato ,  Masahiro Terada ,  Koji Noguchi

发明人： Yasufumi Asao ,  Yukio Hanyu ,  Koichi Sato ,  Masahiro Terada ,  Koji Noguchi

IPC分类号： G02F1/1337 ,  C09K19/02 ,  C09K19/04 ,  C09K19/20 ,  C09K19/22 ,  G02F1/13 ,  G02F1/141 ,  G02F1/1333 ,  C09K19/52

CPC分类号： C09K19/0225 ,  C09K19/04 ,  G02F1/141 ,  Y10T428/10

摘要： An aligning method of a chiral smectic liquid crystal includes the steps of: disposing a chiral smectic liquid crystal between a pair of electrode plates, the chiral smectic liquid crystal having a layer spacing-changing characteristic providing a layer spacing which increases on temperature decrease in a first temperature range in smectic A phase; and subjecting the chiral smectic liquid crystal to a heat treatment including a sequence of cooling from a higher temperature phase to a second temperature range in smectic A phase including at least a portion of the first temperature range, at least one cycle of heating and cooling within the second temperature range, and further cooling to a smectic phase lower than smectic phase. The heat treatment, particularly at least one cycle of heating and cooling in smectic A phase, is effective in suppressing an alignment (orientation) irregularity due to the presence of two regions different in characteristics, thus improving a drive margin.

摘要翻译： 手性近晶液晶的取向方法包括以下步骤：在一对电极板之间设置手性近晶液晶，所述手性近晶液晶具有层间距变化特性，其提供在 近晶相A的第一温度范围; 以及对所述手性近晶液晶进行热处理，所述热处理包括在包括所述第一温度范围的至少一部分的近晶A相中的从较高温度相到第二温度范围的冷却序列，至少一个加热和冷却循环 第二温度范围，并进一步冷却至近晶相的近晶相。 热处理，特别是在近晶A相中的加热和冷却的至少一个循环，由于存在两个特性不同的区域，因此抑制了对准（取向）不规则性，从而提高了驱动裕度。

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：US06417828B1

公开(公告)日：2002-07-09

申请号：US09505838

申请日：2000-02-17

申请人： Koichi Sato ,  Mineto Yagyu ,  Yukio Hanyu ,  Masahiro Terada ,  Koji Noguchi ,  Kouki Nukanobu

发明人： Koichi Sato ,  Mineto Yagyu ,  Yukio Hanyu ,  Masahiro Terada ,  Koji Noguchi ,  Kouki Nukanobu

IPC分类号： G09G336

CPC分类号： C09K19/2021 ,  C09K19/3463 ,  G09G3/2011 ,  G09G3/207 ,  G09G3/3651 ,  G09G2310/04 ,  G09G2310/061 ,  G09G2320/0204 ,  G09G2320/0257 ,  G09G2330/021

摘要： An active matrix-type liquid crystal device is constituted by a pair of substrates, a chiral smectic liquid crystal composition disposed between the pair of substrates so as to form a plurality of pixels, and a plurality of active elements provided to the pixels, respectively, for driving the liquid crystal device in a matrix driving scheme. The chiral smectic liquid crystal composition may preferably comprise at least two specific fluorine-containing mesomorphic compounds and assume two stable states between which a threshold voltage for switching from one of the two stable states to the other stable state is different from a threshold voltage for switching from the other stable state to said one of the two stable states and liquid crystal molecules of the liquid crystal composition change their alignment states so as to provide a halftone state depending on a voltage applied to the chiral smectic liquid crystal.

摘要翻译： 有源矩阵型液晶装置由一对基板构成，手性近晶液晶组合物设置在一对基板之间以形成多个像素，以及分别设置到像素的多个有源元件， 用于以矩阵驱动方案驱动液晶装置。 手性近晶液晶组合物可以优选包含至少两种特定的含氟介晶化合物，并且具有两种稳定状态，在两种稳定状态之间，用于从两种稳定状态中的一种转换到另一种稳定状态的阈值电压不同于用于切换的阈值电压 从另一个稳定状态到两个稳定状态之一和液晶组合物的液晶分子改变其取向状态，以便根据施加到手性近晶液晶的电压提供半色调状态。

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：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：US06650387B1

公开(公告)日：2003-11-18

申请号：US09544162

申请日：2000-04-06

申请人： Yasufumi Asao ,  Yukio Hanyu ,  Koichi Sato

发明人： Yasufumi Asao ,  Yukio Hanyu ,  Koichi Sato

IPC分类号： G02F1141

CPC分类号： C09K19/02 ,  C09K19/322 ,  C09K19/58 ,  G02F1/1337 ,  G02F2001/133742 ,  H01L51/5293 ,  Y10T428/10

摘要： A liquid crystal device includes a highly aligned liquid crystal over an entire area including regions not provided with a uniaxial alignment film. A carrier-transporting device and a light-emitting device incorporate such a liquid crystal device.

摘要翻译： 液晶装置包括在不具有单轴取向膜的区域的整个区域上的高度排列的液晶。 载体传输器件和发光器件结合有这种液晶器件。

公开(公告)号：US5999157A

公开(公告)日：1999-12-07

申请号：US770267

申请日：1996-12-20

申请人： Nobuhiro Ito ,  Yasuaki Takeda ,  Hirohide Munakata ,  Yukio Hanyu ,  Yasufumi Asao

发明人： Nobuhiro Ito ,  Yasuaki Takeda ,  Hirohide Munakata ,  Yukio Hanyu ,  Yasufumi Asao

IPC分类号： G09G3/36

CPC分类号： G09G3/3629 ,  G09G2310/06 ,  G09G2320/0247

摘要： A liquid crystal apparatus comprises a liquid crystal device having a pair of substrates respectively having thereon scanning electrodes and data electrodes arranged in a matrix shape, and a liquid crystal disposed between the substrates and capable of a cumulative translational movement depending on a change in an external electric field applied to the liquid crystal; and a driver for controlling a first frequency f having a variable range and representing an effective frequency of a drive data signal pulse applied to the liquid crystal so that a second frequency f.sub.0 representing an inversion frequency at which a direction of the translational movement of the liquid crystal is turned in an opposite direction is in the variable range of the first frequency f. The above driver used in the liquid crystal apparatus is effective in suppressing a cumulative translational movement of liquid crystal molecules for a long period of time.

摘要翻译： 液晶装置包括具有分别具有扫描电极和排列成矩阵状的数据电极的一对基板的液晶装置，以及配置在基板之间的液晶，能够根据外部的变化进行累积的平移运动 施加到液晶的电场; 以及驱动器，用于控制具有可变范围并且表示施加到液晶的驱动数据信号脉冲的有效频率的第一频率f，使得表示液面的平移运动方向的反转频率的第二频率f0 晶体在相反方向转动在第一频率f的可变范围内。 用于液晶装置的上述驱动器有效地抑制长时间液晶分子的累积平移运动。

公开(公告)号：US5956010A

公开(公告)日：1999-09-21

申请号：US866112

申请日：1997-05-30

申请人： Yasufumi Asao ,  Yasuaki Takeda ,  Hirohide Munakata ,  Yukio Hanyu ,  Nobuhiro Ito

发明人： Yasufumi Asao ,  Yasuaki Takeda ,  Hirohide Munakata ,  Yukio Hanyu ,  Nobuhiro Ito

IPC分类号： G09G3/36

CPC分类号： G09G3/3633 ,  G09G3/3629 ,  G09G2310/06 ,  G09G2310/061

摘要： A liquid crystal apparatus is constituted by a liquid crystal device including a pair of substrates and a liquid crystal disposed between the substrates, and means for applying an asymmetrical drive signal waveform to the liquid crystal. The liquid crystal is capable of having at least two stable states S1 and S2 and capable of causing a cumulative translational movement depending on a change in an external electric field applied to the liquid crystal. To the liquid crystal, an asymmetrical drive signal waveform having an effective frequency range is applied by the above application means so as to provide an absolute value of a difference between an inversion frequency f.sub.01 where a direction of the movement of said liquid crystal is turned in an opposite direction in the state S1 and an inversion frequency f.sub.02 where a direction of the movement of said liquid crystal is turned in an opposite direction in the state S2 smaller than a difference therebetween in the case of applying a symmetrical drive signal waveform to said liquid crystal. The inversion frequencies f.sub.01 and f.sub.02 are within the effective frequency range of the asymmetrical drive signal waveform. The application means is effective in suppressing liquid crystal movement in the liquid crystal device.

摘要翻译： 液晶装置由包括一对基板和设置在基板之间的液晶的液晶装置构成，以及用于向液晶施加非对称驱动信号波形的装置。 液晶能够具有至少两个稳定状态S1和S2，并且能够根据施加到液晶的外部电场的变化而引起累积的平移运动。 对于液晶，通过上述施加装置施加具有有效频率范围的不对称驱动信号波形，以便提供转换所述液晶的移动方向的反转频率f01之间的差的绝对值 在状态S1中的相反方向和反转频率f02，其中在向对所述液体施加对称的驱动信号波形的情况下，在所述状态S2中，所述液晶的移动方向在相反方向转动， 水晶。 反转频率f01和f02在不对称驱动信号波形的有效频率范围内。 施加装置有效地抑制液晶装置中的液晶运动。