公开(公告)号：US5858269A

公开(公告)日：1999-01-12

申请号：US715632

申请日：1996-09-18

申请人： Kenji Shinjo ,  Koichi Sato ,  Masahiro Terada ,  Syuji Yamada

发明人： Kenji Shinjo ,  Koichi Sato ,  Masahiro Terada ,  Syuji Yamada

IPC分类号： C09K19/04 ,  C09K19/58 ,  G02F1/1337 ,  C09K19/52 ,  G02F1/1333

CPC分类号： G02F1/133711 ,  C09K19/04 ,  C09K19/582 ,  Y10T428/1027

摘要： A liquid crystal device is constituted by a pair of substrates each having thereon at least an electrode and an alignment control layer, and a liquid crystal composition disposed between the substrates. At least one of the alignment control layers has a thickness of at most 200 .ANG. or comprises polyimide. In the latter case, the pair of substrates have been subjected to mutually different aligning treatments. The liquid crystal composition comprises at least one species of a fluorine-containing mesomorphic compound in an amount of at least 70 wt. % comprising a fluorocarbon terminal portion and a hydrocarbon terminal portion, the terminal portions being connected with a central core, and having smectic mesophase or latent smectic mesophase, and comprises at least one species of a resistivity-modifying substance. The fluorine-containing mesomorphic compound comprises a compound having a fluorocarbon terminal portion containing at least one catenary ether oxygen atom in an amount of at least 30 wt. % based on the liquid crystal composition. The liquid crystal device is effective in improving switching characteristics, an alignment characteristic and display performances while retaining a bookshelf structure or a near bookshelf structure with respect to a smectic layer structure.

摘要翻译： 液晶装置由一对基板构成，每个基板至少具有电极和取向控制层，以及设置在基板之间的液晶组合物。 至少一个取向控制层的厚度至多为200或包含聚酰亚胺。 在后一种情况下，这对基板已进行相互不同的取向处理。 液晶组合物包含至少一种含氟介晶化合物，其含量至少为70wt。 ％，其包含碳氟化合物末端部分和烃末端部分，末端部分与中心核心连接，并且具有近晶中间相或潜在的近晶中间相，并且包含至少一种电阻率修饰物质。 含氟介晶化合物包含含有至少一个链烯氧原子的碳氟化合物末端部分的化合物，其量至少为30重量％。 基于液晶组成。 液晶装置在保持相对于层间结构的书架结构或靠近书架结构的同时有效地改善开关特性，对准特性和显示性能。

公开(公告)号：US06177152B1

公开(公告)日：2001-01-23

申请号：US08733771

申请日：1996-10-18

申请人： Masahiro Terada ,  Kenji Shinjo ,  Koichi Sato ,  Syuji Yamada

发明人： Masahiro Terada ,  Kenji Shinjo ,  Koichi Sato ,  Syuji Yamada

IPC分类号： C09K1900

CPC分类号： C09K19/42 ,  C09K19/0225 ,  C09K19/04 ,  G02F1/133723 ,  Y10T428/10 ,  Y10T428/1023

摘要： A liquid crystal device having a pair of electrode substrates, and a liquid crystal composition disposed between the substrates. At least one of the substrates is provided with an alignment control layer having a thickness of at most 200 Å and having been subjected to a rubbing uniaxial aligning treatment. The liquid crystal composition contains at least 30 wt. % of (i) at least one species of a fluorine-containing mesomorphic compound (B) represented by a formula (II) having smectic C phase and providing a tilt angle below 30 degrees at a temperature 15° C. below an upper limit temperature of said smectic C phase (ii) at least one species of compound (C) in an amount at least 5 wt. % represented by the formula (II) having a smectic C phase and which provides a tilt angle of at least 30 degrees at a temperature 15° C. below an upper limit temperature of said smectic C phase.

摘要翻译： 具有一对电极基板的液晶装置和设置在基板之间的液晶组合物。 至少一个基板设置有具有至多为200埃的厚度的对准控制层，并进行摩擦单轴对准处理。 液晶组合物含有至少30wt。 ％的（i）由式（II）表示的具有近晶C相的至少一种含氟介晶化合物（B），并在低于上限温度15℃的温度下提供低于30度的倾斜角 的所述近晶C相（ii）至少一种化合物（C），其量为至少5wt。 由具有近晶C相的式（II）表示的％，并且在比所述近晶C相的上限温度低15℃的温度下提供至少30度的倾斜角。

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：US5841497A

公开(公告)日：1998-11-24

申请号：US681350

申请日：1996-07-23

申请人： Koichi Sato ,  Kenji Shinjo ,  Masahiro Terada ,  Syuji Yamada

发明人： Koichi Sato ,  Kenji Shinjo ,  Masahiro Terada ,  Syuji Yamada

IPC分类号： C09K19/34 ,  G02F1/1337

CPC分类号： C09K19/34 ,  C09K19/3458 ,  G02F1/133723

摘要： A liquid crystal device is constituted by a pair of substrates each having thereon an electrode for voltage application, 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 control layer having a thickness of at most 200 .ANG. or comprising polyimide. The substrates have been subjected to different aligning treatments at their opposite faces each contacting the composition. The composition comprises at least three fluorine-containing mesomorphic compounds each comprising a fluorocarbon terminal portion and a hydrocarbon terminal portion, the terminal portions being connected with a central core, the compounds having smectic mesophase or latent smectic mesophase; said at least three mesomorphic compounds comprising a compound having a fluorocarbon terminal portion containing one catenary ether oxygen atom, a compound having a fluorocarbon terminal portion containing two catenary ether oxygen atoms, and a compound having a fluorocarbon terminal portion containing three catenary ether oxygen atoms. The above liquid crystal device is effective in improving a duration margin to provide good drive characteristic when driven.

摘要翻译： 液晶装置由一对基板构成，每个基板上具有用于施加电压的电极，设置在基板之间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厚度最多为200或包含聚酰亚胺的取向控制层。 在各自的接触组合物的相对面上，基板已进行不同的取向处理。 所述组合物包含至少三种含氟介孔化合物，其各自包含碳氟化合物末端部分和烃末端部分，末端部分与中心核心连接，所述化合物具有近晶中间相或潜在的近晶相中间相; 所述至少三种介晶化合物包含具有含有一个链状醚氧原子的碳氟化合物末端部分的化合物，具有含有两个链状乙烯氧原子的碳氟化合物末端部分的化合物和具有含有三个链状醚氧原子的碳氟化合物末端部分的化合物。 上述液晶装置在驱动时有效地提高持续时间余量以提供良好的驱动特性。

公开(公告)号：US5458804A

公开(公告)日：1995-10-17

申请号：US65917

申请日：1993-05-25

申请人： Syuji Yamada ,  Akio Yoshida ,  Kenji Shinjo ,  Masahiro Terada ,  Hiroshi Mizuno

发明人： Syuji Yamada ,  Akio Yoshida ,  Kenji Shinjo ,  Masahiro Terada ,  Hiroshi Mizuno

IPC分类号： C09K19/02 ,  C09K19/32 ,  C09K19/34 ,  G02F1/141 ,  C09K19/52 ,  G02F1/133

CPC分类号： G02F1/1416 ,  C09K19/0225 ,  C09K19/32 ,  C09K19/3441 ,  C09K19/3491 ,  C09K19/3497

摘要： A liquid crystal (composition) containing a ferroelectric liquid crystal shows a layer inclination angle .delta. in smectic phase providing a specific temperature dependence. The inclination angle .delta. increases on temperature decrease down to a mediate temperature and decreases on temperature decrease below the mediate temperature. The inclination angle .delta. keeps a positive value in an ambient temperature or starts to increase again on further temperature decrease before it reaches zero degrees. The liquid crystal (composition) is usable for providing a liquid crystal device or apparatus with decreased temperature dependences of driving conditions and improved low-temperature storage properties.

摘要翻译： 含有铁电液晶的液晶（组合物）表现出具有特定温度依赖性的近晶相中的层倾斜角度δ。 倾斜角度δ随着温度的降低而增加到中间温度，并且在低于介质温度的温度下降时减小。 倾斜角度Δ在环境温度下保持正值，或者在其达到零度之前，在另外的温度降低时再次开始增加。 液晶（组合物）可用于提供具有降低的驱动条件的温度依赖性和改善的低温存储性能的液晶装置或装置。

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：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：US5728318A

公开(公告)日：1998-03-17

申请号：US555063

申请日：1995-11-08

申请人： Masataka Yamashita ,  Kazuharu Katagiri ,  Masahiro Terada ,  Shosei Mori ,  Syuji Yamada ,  Hiroshi Mizuno

发明人： Masataka Yamashita ,  Kazuharu Katagiri ,  Masahiro Terada ,  Shosei Mori ,  Syuji Yamada ,  Hiroshi Mizuno

IPC分类号： C09K19/34 ,  C09K19/46 ,  C09K19/12 ,  C09K19/32 ,  G02F1/133

CPC分类号： C09K19/46 ,  C09K19/34

摘要： A liquid crystal composition is composed of at least three types of mesomorphic compounds. The liquid crystal composition may preferably contain a mesomorphic compound having an indan skeleton represented by the formula (1) or (3) and a mesomorphic compound having a terminal cyclic group represented by the formula (2) or (4). The liquid crystal composition may also preferably further contain an optically active compound to be formulated as a chiral smectic (or ferroelectric) liquid crystal composition. When the chiral smectic liquid crystal composition is disposed between a pair of electrode substrates provided with uniaxial alignment axes, the liquid crystal composition may preferably be placed in an alignment state in C1 uniform alignment, so that a resultant liquid crystal device provides a higher contrast ratio and a wider drive voltage margin.

摘要翻译： 液晶组合物由至少三种类型的介晶化合物组成。 液晶组合物可以优选含有具有由式（1）或（3）表示的茚满骨架的介晶化合物和具有由式（2）或（4）表示的末端环状基团的介晶化合物。 液晶组合物还优选还含有配制成手性近晶（或铁电体）液晶组合物的光学活性化合物。 当手性近晶液晶组合物配置在具有单轴取向轴的一对电极基板之间时，液晶组合物优选地可以以C1均匀取向放置在取向状态，使得所得到的液晶装置提供更高的对比度 和更宽的驱动电压裕度。

公开(公告)号：US5709818A

公开(公告)日：1998-01-20

申请号：US592159

申请日：1996-01-26

申请人： Masataka Yamashita ,  Masahiro Terada ,  Shosei Mori ,  Syuji Yamada ,  Hiroshi Mizuno ,  Ikuo Nakazawa ,  Koji Noguchi

发明人： Masataka Yamashita ,  Masahiro Terada ,  Shosei Mori ,  Syuji Yamada ,  Hiroshi Mizuno ,  Ikuo Nakazawa ,  Koji Noguchi

IPC分类号： G02F1/13 ,  C09K19/02 ,  C09K19/34 ,  C09K19/42 ,  C09K19/44 ,  C09K19/46 ,  C09K19/30 ,  C09K19/32 ,  C02F1/13

CPC分类号： C09K19/46 ,  C09K19/34

摘要： A liquid crystal composition contains a mesomorphic compound represented by the following formula (A): ##STR1## wherein R.sub.1 and R.sub.2 independently denote a linear or branched alkyl group having 1-18 carbon atoms; X.sub.1 denotes a single bond, --O--, --CO--O-- or --O--CO--; and A.sub.1 denotes ##STR2## and a mesomorphic compound represented by the following formula (B): ##STR3## wherein R.sub.3 denotes a linear or branched alkyl group having 1-18 carbon atoms; X.sub.2 and X.sub.3 independently denote a single bond, --O--, --CO--O-- or --O--CO--; m is an integer of 3-16; and A.sub.2 denotes ##STR4## or ##STR5## The liquid crystal composition may preferably be formulated as a chiral smectic liquid crystal composition. The liquid crystal composition is useful in providing a liquid crystal device using the liquid crystal composition with a good alignment characteristic, a good drive characteristic, and a high and stable contrast ratio.

摘要翻译： 液晶组合物含有由下式（A）表示的介晶化合物：其中R 1和R 2分别表示具有1-18个碳原子的直链或支链烷基; X1表示单键，-O - ， - CO-O-或-O-CO-; A1表示下式（B）表示的介晶化合物：（B）其中，R3表示碳原子数为1〜18的直链或支链烷基; X2和X3独立地表示单键，-O - ， - CO-O-或-O-CO-; m为3-16的整数; 并且A2表示或。液晶组合物优选配制成手性近晶液晶组合物。 液晶组合物可用于提供使用具有良好取向特性，良好的驱动特性和高且稳定的对比度的液晶组合物的液晶装置。

公开(公告)号：US5582763A

公开(公告)日：1996-12-10

申请号：US314422

申请日：1994-09-28

申请人： Syuji Yamada ,  Masahiro Terada ,  Hiroshi Mizuno

发明人： Syuji Yamada ,  Masahiro Terada ,  Hiroshi Mizuno

IPC分类号： C09K19/02 ,  C09K19/32 ,  C09K19/34 ,  C09K19/52 ,  C09K19/30 ,  G02F1/13

CPC分类号： C09K19/3452 ,  C09K19/0225 ,  C09K19/32

摘要： A liquid crystal device with little temperature-dependence of drive characteristics, such as response speed, and with good storage stability, can be produced by using a liquid crystal composition, successively assuming SmA (smectic A) phase and SmC* (chiral smectic) phase on temperature decrease. The layer spacing composition has a temperature-dependence of layer spacing d in smectic phase such that the layer spacing d increases, is constant or decreases on temperature decrease in SmA phase temperature range, assumes a first transition point where the layer spacing d abruptly decreases on temperature decrease in vicinity of transition temperature from SmA phase to SmC* phase, and assumes a second transition point where the layer spacing d commences to increase on further temperature decrease below the first transition point in SmC* temperature range.

摘要翻译： 可以通过使用液晶组合物，连续地假设SmA（近晶A）相和SmC *（手性近晶）相，可以产生对响应速度等驱动特性，具有良好的储存稳定性的驱动特性温度依赖性低的液晶装置 温度下降。 层间距组合物在层间相中具有层间距d的温度依赖性，使得层间距d增加，在SmA相温度范围内的温度降低时恒定或降低，假设层间距d突然降低的第一转变点 在SmA相的转变温度附近温度降低到SmC *相，并且假定在SmC *温度范围内的第一转变点以后的温度降低的层间距d开始增加的第二转变点。