公开(公告)号：US5688437A

公开(公告)日：1997-11-18

申请号：US422262

申请日：1995-04-14

申请人： Koichi Sato ,  Hiroyuki Kitayama ,  Kenji Shinjo ,  Katsutoshi Nakamura ,  Shinichi Nakamura

发明人： Koichi Sato ,  Hiroyuki Kitayama ,  Kenji Shinjo ,  Katsutoshi Nakamura ,  Shinichi Nakamura

IPC分类号： C09K19/34 ,  C09K19/12 ,  C09K19/20 ,  C09K19/32

CPC分类号： C09K19/34

摘要： A liquid crystal composition includes a liquid crystal containing at least one mesomorphic compound having a cholesteric phase (Ch phase)-free mesomorphic phase, and at least one compound (e) having a limit of solubility in the liquid crystal and being contained in the composition in a proportion ranging from 20% of the limit of solubility to below the limit of solubility. The liquid crystal composition may preferably include the liquid crystal containing at least one fluorine-containing mesomorphic compound (a) having a fluorocarbon terminal portion and a hydrocarbon terminal portion, and at least one achiral compound (b), a the compound (e), having a specific ring structure and a specific terminal alkyl group free from a perfluorocarbon atom. The compound having a Ch phase-free mesomorphic phase, preferably the compound (a), and the compound (e), preferably the compound (b) are effective in providing the liquid crystal composition with a layer structure of so-called bookshelf or a layer structure having a small inclination angle (closer to bookshelf structure). The liquid crystal composition is useful in improving response characteristics and display characteristics, particularly a contrast ratio, of a liquid crystal device using the liquid crystal composition.

摘要翻译： 液晶组合物包括含有至少一种具有胆甾型相（Ch相） - 自由相态的介晶化合物的液晶和至少一种在液晶中具有极限溶解性并包含在该组合物中的化合物（e） 其比例范围从溶解度的20％到低于溶解度的极限。 液晶组合物可以优选包含含有至少一种含氟碳末端部分和烃末端部分的含氟介晶化合物（a）的液晶，以及至少一种非手性化合物（b），化合物（e）， 具有特定的环结构和不含全氟化碳原子的特定末端烷基。 具有Ch相无介晶相的化合物，优选化合物（a）和化合物（e），优选化合物（b））有效地为所述液晶组合物提供所谓书架或 层结构具有较小的倾斜角度（更靠近书架结构）。 液晶组合物可用于改善使用液晶组合物的液晶装置的响应特性和显示特性，特别是对比度。

公开(公告)号：US5948317A

公开(公告)日：1999-09-07

申请号：US971163

申请日：1997-11-14

申请人： Koichi Sato ,  Hiroyuki Kitayama ,  Kenji Shinjo ,  Shinichi Nakamura ,  Katsutoshi Nakamura

发明人： Koichi Sato ,  Hiroyuki Kitayama ,  Kenji Shinjo ,  Shinichi Nakamura ,  Katsutoshi Nakamura

IPC分类号： C09K19/04 ,  C09K19/34 ,  C09K19/42 ,  C09K19/58 ,  G02F1/1337

CPC分类号： G02F1/133723 ,  C09K19/04 ,  C09K19/3469 ,  C09K19/42 ,  C09K19/588 ,  C09K2019/044

摘要： A liquid crystal composition includes at least one fluorine-containing mesomorphic compound (a) having a fluorocarbon terminal portion and a hydrocarbon terminal portion, and at least one optically active compound (b) having an optically active cyclic group and a terminal alkyl group free from a perfluorocarbon atom. The compound (a) and the compound (b) are mutually soluble readily to form a homogeneous liquid crystal composition. The liquid crystal composition shows a layer structure of so-called bookshelf or a layer structure having a small inclination angle (closer to bookshelf structure). The liquid crystal composition is useful in improving response characteristics and display characteristics, particularly a contrast ratio, of a liquid crystal device using the liquid crystal composition.

摘要翻译： 液晶组合物包含至少一种具有碳氟化合物末端部分和烃末端部分的含氟介晶化合物（a）和至少一种光学活性化合物（b），其具有光学活性的环状基团和不具有 全氟化碳原子。 化合物（a）和化合物（b）易于溶解以形成均匀的液晶组合物。 液晶组合物显示出所谓书架的层结构或具有较小倾斜角（更靠近书架结构）的层结构。 液晶组合物可用于改善使用液晶组合物的液晶装置的响应特性和显示特性，特别是对比度。

公开(公告)号：US5641427A

公开(公告)日：1997-06-24

申请号：US506537

申请日：1995-07-25

申请人： Kenji Shinjo ,  Hiroyuki Kitayama ,  Koichi Sato

发明人： Kenji Shinjo ,  Hiroyuki Kitayama ,  Koichi Sato

IPC分类号： C09K19/34 ,  C09K19/42 ,  C09K19/52 ,  C09K19/20 ,  C09K19/32

CPC分类号： C09K19/42 ,  C09K19/3441 ,  C09K19/345

摘要： A liquid crystal composition includes at least one fluorine-containing mesomorphic compound (a) having a fluorocarbon terminal portion and a hydrocarbon terminal portion, and at least one optically active compound (b) having at least one substituted or unsubstituted terminal alkyl group containing an asymmetric carbon atom directly connected with F, CF.sub.3 or CH.sub.3. The liquid crystal composition shows a layer structure of so-called bookshelf or a layer structure having a small inclination angle (closer to bookshelf structure). The liquid crystal composition is useful in improving response characteristics and display characteristics, particularly a contrast ratio, of a liquid crystal device using the liquid crystal composition.

摘要翻译： 液晶组合物包含至少一种含氟碳末端部分和烃末端部分的含氟介晶化合物（a）和至少一种具有至少一个取代或未取代的含有不对称的末端烷基的光学活性化合物（b） 碳原子与F，CF3或CH3直接连接。 液晶组合物显示出所谓书架的层结构或具有较小倾斜角（更靠近书架结构）的层结构。 液晶组合物可用于改善使用液晶组合物的液晶装置的响应特性和显示特性，特别是对比度。

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：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：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：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：US06652776B2

公开(公告)日：2003-11-25

申请号：US10201696

申请日：2002-07-24

申请人： Koichi Sato ,  Shinichi Nakamura ,  Koji Noguchi

发明人： Koichi Sato ,  Shinichi Nakamura ,  Koji Noguchi

IPC分类号： C09K1938

CPC分类号： B32B17/10036 ,  B32B17/10174 ,  C09K19/32 ,  C09K19/3861 ,  G02F1/133365 ,  G02F1/1334 ,  G02F2001/13756 ,  Y10T428/10 ,  Y10T428/1036

摘要： A liquid crystal device has a liquid crystal layer of a liquid crystal composition comprising a discotic mesomorphic compound and a rod-shaped mesomorphic compound. The discotic mesomorphic compound and the rod-shaped mesomorphic compound are essentially mutually different in molecular structure and refractive index anisotropy and are co-present in the liquid crystal layer in a mutual phase separation state, thus improving a light-scattering performance of the liquid crystal device.

公开(公告)号：US6001276A

公开(公告)日：1999-12-14

申请号：US896541

申请日：1997-07-18

申请人： Masanobu Asaoka ,  Hideaki Takao ,  Koichi Sato ,  Masahiro Terada ,  Shinichi Nakamura ,  Ikuo Nakazawa

发明人： Masanobu Asaoka ,  Hideaki Takao ,  Koichi Sato ,  Masahiro Terada ,  Shinichi Nakamura ,  Ikuo Nakazawa

IPC分类号： G02F1/137 ,  C09K19/02 ,  G02F1/1337 ,  C09K19/56 ,  C09K19/52

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

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 lacking cholesteric phase 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 tetravalent aliphatic hydrocarbon group free from a planar structure or a tetravalent alicyclic hydrocarbon group, and n is an integer of at least 1. The chiral smectic liquid crystal composition may preferably 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，每个透明基板上都具有透明电极，并且在基板之间设置缺少胆固醇相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。 其中A表示不含平面结构或四价脂环族烃基的四价脂族烃基，n为至少为1的整数。手性近晶液晶组合物优选含有至少一种含氟介晶化合物，所述含氟介晶化合物包含 碳氟化合物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。