利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

53 条记录 (耗时 0.028 秒)

    Cholesteric liquid crystal copolymers and additives
    11.
    发明授权
    Cholesteric liquid crystal copolymers and additives 有权

    公开(公告)号：US07160586B2

    公开(公告)日：2007-01-09

    申请号：US10652700

    申请日：2003-08-29

    申请人： Marc D. Radcliffe ,  Richard J. Pokorny ,  Terence D. Spawn ,  Steven D. Solomonson

    发明人： Marc D. Radcliffe ,  Richard J. Pokorny ,  Terence D. Spawn ,  Steven D. Solomonson

    IPC分类号： C09K19/36 ,  C09K19/38 ,  G02B5/30

    CPC分类号： C09K19/3852 ,  C09K19/2007 ,  C09K2019/0448 ,  C09K2019/2035 ,  C09K2019/2078 ,  C09K2019/3095 ,  C09K2219/03 ,  Y10T428/10 ,  Y10T428/1036 ,  Y10T428/1041 ,  Y10T428/105

    摘要： A cholesteric liquid crystal composition includes a) a cholesteric liquid crystal compound or a cholesteric liquid crystal precursor; and b) a compound of formula (I), formula (II) or formula (III): where, n is 1, 2, 3, or 4; m is 1, 2, or 3; R is an acrylate, methacrylate, acrylamide, isocyanate, epoxy, or silane; R1 is a (C3–C8) alkylene, (C3–C8) alkenylene, or (C3–C8) alkylyne; R2 is a bond, —O—, —C(O)O—, —O(O)C—, —OC(O)O—, —C(O)N—, —CH═N—, —N═CH—, or —NC(O)—; R3 is a cycloalkylene, cycloalkenylene, heterocyclylene, arylene, or hetroarylene; R4 is a bond, (C1–C8) alkylene, (C2–C8) alkenylene, (C2–C8) alkylyne, carbonyl, —O—, —C(O)O—, —O(O)C—, —OC(O)O—, —C(O)N—, —CH═N—, —N═CH—, or —NC(O)—; R5 is a bond, cycloalkylene, cycloalkenylene, hetrocyclylene, arylene, or hetroarylene; R6 is hydrogen, cyano, halo, (C1–C8) alkoxy, (C1–C8) alkyl, nitro, amino, carboxy, mercapto, (C1–C4)thioalkyl, COCH3, CF3, OCF3, or SCF3; R7 is a (C1–C2) alkylene, (C2) alkenylene, or (C2) alkylyne; R8 is is hydrogen, halo, (C1–C8) alkoxy, (C1–C8) alkyl, nitro, amino, carboxy, mercapto, (C1–C4)thioalkyl, COCH3, CF3, OCF3, or SCF3; R9 is a cycloalkylene, cycloalkenylene, heterocyclylene, arylene, or hetroarylene; and R10 is a (C1–C8) alkylene, (C2–C8) alkenylene, or (C2–C8) alkylyne.

    Cholesteric liquid crystal additives
    13.
    发明授权
    Cholesteric liquid crystal additives 失效
    胆固醇液晶添加剂

    公开(公告)号：US07029729B2

    公开(公告)日：2006-04-18

    申请号：US10373213

    申请日：2003-02-24

    申请人： Terence D. Spawn ,  Marc D. Radcliffe ,  Richard J. Pokorny

    发明人： Terence D. Spawn ,  Marc D. Radcliffe ,  Richard J. Pokorny

    IPC分类号： C09K19/52 ,  C09K19/54 ,  C09K19/20 ,  C09K19/38 ,  G02F1/1335

    CPC分类号： C09K19/54 ,  C09K19/2007 ,  C09K19/56 ,  C09K2019/0448 ,  Y10T428/10 ,  Y10T428/1036 ,  Y10T428/1041

    摘要： The invention provides a cholesteric liquid crystal composition that includes at least one cholesteric liquid crystal precursor, and at least one non-liquid crystalline additive that is a non-liquid crystalline compound of formula I The invention also provides cholesteric liquid crystal films and optical bodies formed from cholesteric liquid crystal compositions of the invention. The invention further provides an optical display that includes a display medium, and a reflective polarizer including a cholesteric liquid crystal composition in accordance with the invention.

    摘要翻译： 本发明提供一种胆甾醇型液晶组合物，其包括至少一种胆甾醇型液晶前体，以及至少一种非液晶性添加剂，其为式I的非液晶化合物。本发明还提供胆甾型液晶膜和形成的光学体 来自本发明的胆甾型液晶组合物。 本发明还提供一种包括显示介质的光学显示器，以及包括根据本发明的胆甾型液晶组合物的反射偏振器。

    Method of making multilayer cholesteric liquid crystal optical bodies
    14.
    发明授权
    Method of making multilayer cholesteric liquid crystal optical bodies 有权
    制造多层胆固醇液晶光学体的方法

    公开(公告)号：US07510741B2

    公开(公告)日：2009-03-31

    申请号：US10858238

    申请日：2004-06-01

    申请人： Richard J. Pokorny ,  Marc D. Radcliffe ,  Steven D. Solomonson ,  Terence D. Spawn

    发明人： Richard J. Pokorny ,  Marc D. Radcliffe ,  Steven D. Solomonson ,  Terence D. Spawn

    IPC分类号： B05D5/06 ,  B05D7/00 ,  B05D3/00 ,  G02F1/13 ,  C09K19/02 ,  C09K19/42

    CPC分类号： G02B5/3016 ,  G02F1/133536 ,  G02F2201/343

    摘要： Methods of making an optical body include coating a mixture including a first cholesteric liquid crystal polymer, a second cholesteric liquid crystal monomer, a second cholesteric liquid crystal polymer formed from a portion of the second cholesteric liquid crystal monomer, and a solvent on a substrate. The first cholesteric liquid crystal polymer is different than the second cholesteric liquid crystal polymer. Then, forming from the mixture an optical body including a first layer, a second layer, and a third layer disposed between the first and second layer. The first layer includes a majority of the first cholesteric liquid crystal polymer. The second layer includes a majority of a second cholesteric liquid crystal monomer. The third layer includes the second cholesteric liquid crystal polymer.

    摘要翻译： 制造光学体的方法包括将包含第一胆甾型液晶聚合物，第二胆甾醇型液晶单体，由第二胆甾型液晶单体的一部分形成的第二胆甾醇型液晶聚合物和溶剂涂布在基板上的混合物。 第一胆甾型液晶聚合物与第二胆甾型液晶聚合物不同。 然后，从混合物形成包括设置在第一层和第二层之间的第一层，第二层和第三层的光学体。 第一层包括第一胆甾型液晶聚合物的大部分。 第二层包括大部分第二胆甾型液晶单体。 第三层包括第二胆甾型液晶聚合物。

    Tristable liquid crystal display device
    15.
    发明授权
    Tristable liquid crystal display device 失效
    三态液晶显示装置

    公开(公告)号：US6084649A

    公开(公告)日：2000-07-04

    申请号：US131585

    申请日：1998-08-10

    申请人： Takashi Amano ,  Michael P. Keyes ,  Steven J. Martin ,  Marc D. Radcliffe ,  Patricia M. Savu ,  Daniel C. Snustad

    发明人： Takashi Amano ,  Michael P. Keyes ,  Steven J. Martin ,  Marc D. Radcliffe ,  Patricia M. Savu ,  Daniel C. Snustad

    IPC分类号： G02F1/141 ,  C09K19/02 ,  C09K19/10 ,  C09K19/30 ,  C09K19/32 ,  C09K19/34 ,  C09K19/42 ,  G02F1/13 ,  G02F1/1335 ,  C09K19/52 ,  G02F1/1337

    CPC分类号： C09K19/3463 ,  C09K19/02 ,  C09K19/3441 ,  C09K19/3469

    摘要： A tristable liquid crystal display device comprises (a) first and second opposed substrates, at least one bearing an alignment coating and each bearing at least one electrode so as to define one or a plurality of pixels; (b) a tilted smectic or induced tilted smectic liquid crystal composition disposed between the substrates; and (c) a pair of orthogonally disposed polarizers, each having a polarization axis, one polarization axis being aligned with the zero field optical axis of a tilted smectic or induced tilted smectic mesophase of the liquid crystal composition; wherein the substrates are disposed so as to provide an alignment of the liquid crystal composition, which comprises (i) at least one chiral liquid crystal compound; and (ii) at least one achiral liquid crystal compound that can be represented by the following formula:R--M--N--(P).sub.a --OCH.sub.2 R.sub.f (I)where R, M, N, P, a and R.sub.f are describe herein; wherein the liquid crystal composition exhibits tristable switching.

    摘要翻译： 三重液晶显示装置包括（a）第一和第二相对的基板，至少一个轴承对准涂层，并且每个轴承至少一个电极以限定一个或多个像素; （b）设置在基板之间的倾斜的近晶或诱导倾斜的近晶液晶组合物; 和（c）一对正交设置的偏振器，每个具有偏振轴，一个偏振轴与液晶组合物的倾斜的近晶或诱导的倾斜的近晶中间相的零场光轴对齐; 其中所述基板被设置成提供所述液晶组合物的对准，所述液晶组合物包含（i）至少一种手性液晶化合物; R-M-N-（P）a-OCH 2 R f（I）表示的至少一种非手性液晶化合物，其中R，M，N，P，a和Rf如下所述; 其中液晶组合物显示三重切换。

    Process for controlling cone tilt angle in mixtures of smectic liquid crystal compounds
    16.
    发明授权
    Process for controlling cone tilt angle in mixtures of smectic liquid crystal compounds 失效
    控制锥形液晶化合物混合物锥角倾斜角的过程

    公开(公告)号：US5658491A

    公开(公告)日：1997-08-19

    申请号：US542179

    申请日：1995-10-12

    申请人： John F. Kistner ,  Marc D. Radcliffe ,  Patricia M. Savu ,  Daniel C. Snustad

    发明人： John F. Kistner ,  Marc D. Radcliffe ,  Patricia M. Savu ,  Daniel C. Snustad

    IPC分类号： G02F1/13 ,  C07D239/26 ,  C07D239/34 ,  C09K19/04 ,  C09K19/34 ,  C09K19/06 ,  C09K19/12 ,  C09K19/32

    CPC分类号： C07D239/26 ,  C09K19/04 ,  C09K19/3458 ,  C09K19/3469

    摘要： A process for controlling the cone tilt angle of a tilted smectic liquid crystal composition comprises the step of combining (a) at least one liquid crystal composition comprising at least one smectic or latent smectic liquid crystal compound comprising (i) an aliphatic fluorocarbon terminal portion comprising a terminal fluoroalkyl or fluoroether group and an alkylene group having at least two carbon atoms and containing at least one catenary ether oxygen atom, (ii) an aliphatic hydrocarbon terminal portion, and (iii) a central core connecting the terminal portions; and (b) at least one liquid crystal composition comprising at least one smectic or latent smectic liquid crystal compound; with the provisos that at least one of the compositions (a) and (b) comprises at least one chiral liquid crystal compound and that the combining of compositions (a) and (b) provides an optically active, tilted chiral smectic liquid crystal composition. The process enables control of cone tilt angle and thereby control of the brightness characteristics of liquid crystal display devices.

    摘要翻译： 用于控制倾斜的近晶液晶组合物的锥体倾斜角的方法包括将（a）至少一种液晶组合物组合的步骤，所述液晶组合物包含至少一种近晶或潜暗的近晶液晶化合物，所述液晶组合物包含（i）脂族碳氟化合物末端部分， 末端氟代烷基或氟代醚基和具有至少两个碳原子并含有至少一个链烯氧原子的亚烷基，（ii）脂肪族烃末端部分和（iii）连接末端部分的中心核心; 和（b）至少一种液晶组合物，其包含至少一种近晶或潜层间的近晶液晶化合物; 条件是组合物（a）和（b）中的至少一种包含至少一种手性液晶化合物，并且组合物（a）和（b）的组合提供光学活性的倾斜手性近晶液晶组合物。 该过程能够控制锥形倾斜角度，从而控制液晶显示装置的亮度特性。

    Tristable liquid crystal display device
    17.
    发明授权
    Tristable liquid crystal display device 失效
    三态液晶显示装置

    公开(公告)号：US6057007A

    公开(公告)日：2000-05-02

    申请号：US131711

    申请日：1998-08-10

    申请人： Takashi Amano ,  Michael P. Keyes ,  Steven J. Martin ,  Marc D. Radcliffe ,  Patricia M. Savu ,  Daniel C. Snustad

    发明人： Takashi Amano ,  Michael P. Keyes ,  Steven J. Martin ,  Marc D. Radcliffe ,  Patricia M. Savu ,  Daniel C. Snustad

    IPC分类号： G02F1/141 ,  C09K19/02 ,  C09K19/04 ,  C09K19/12 ,  C09K19/30 ,  C09K19/32 ,  C09K19/34 ,  C09K19/54 ,  G02F1/13 ,  G02F1/1335 ,  G02F1/1343

    CPC分类号： C09K19/0266 ,  C09K19/04 ,  C09K19/34 ,  C09K19/345 ,  C09K19/3469 ,  C09K19/3497 ,  Y10T428/1036

    摘要： A tristable liquid crystal display device comprises (a) first and second opposed substrates, at least one bearing an alignment coating and each bearing at least one electrode so as to define one or a plurality of pixels; (b) a tilted smectic or induced tilted smectic liquid crystal composition disposed between the substrates; and (c) a pair of orthogonally disposed polarizers, each having a polarization axis, one polarization axis being aligned with the zero field optical axis of a tilted smectic or induced tilted smectic mesophase of the liquid crystal composition; wherein the substrates are disposed so as to provide an alignment of the liquid crystal composition, the composition comprising at least one chiral liquid crystal compound that can be represented by the following formula:R--M--N--(P).sub.b --OCH.sub.2 C*HF--CH.sub.2 O(CH.sub.2).sub.a R.sub.f(I)where M, N, and P are independently selected from the group consisting of aromatic, heteroaromatic, alicyclic, heteroalicyclic, substituted aromatic, substituted heteroaromatic, substituted alicyclic, and substituted heteroalicyclic rings, the individual rings being fused or non-fused, and the rings being connected with each other by a covalent bond or an organic linking group; R is alkyl, alkenyl, alkoxy, or alkoxy alkylene; * designates a chiral center; a is an integer of 0 or 1; b is an integer of 0 or 1; and Rf is a perfluoroether group.

    摘要翻译： 三重液晶显示装置包括（a）第一和第二相对的基板，至少一个轴承对准涂层，并且每个轴承至少一个电极以限定一个或多个像素; （b）设置在基板之间的倾斜的近晶或诱导倾斜的近晶液晶组合物; 和（c）一对正交设置的偏振器，每个具有偏振轴，一个偏振轴与液晶组合物的倾斜的近晶或诱导的倾斜的近晶中间相的零场光轴对齐; 其特征在于，所述基板配置为提供所述液晶组合物的取向，所述组合物含有可由下式表示的至少一种手性液晶化合物：RMN-（P）b-OCH2C * HF-CH2O（CH2 ）aRf（I）其中M，N和P独立地选自芳族，杂芳族，脂环族，杂脂环，取代的芳族，取代的杂芳族，取代的脂环族和取代的杂脂环， 并且所述环通过共价键或有机连接基彼此连接; R是烷基，烯基，烷氧基或烷氧基亚烷基; *指定手性中心; a是0或1的整数; b为0或1的整数; Rf为全氟醚基。

    Process for controlling cone tilt angle in mixtures of smectic liquid crystal compounds
    18.
    发明授权
    Process for controlling cone tilt angle in mixtures of smectic liquid crystal compounds 失效
    控制锥形液晶化合物混合物锥角倾斜角的过程

    公开(公告)号：US5928562A

    公开(公告)日：1999-07-27

    申请号：US827287

    申请日：1997-03-27

    申请人： John F. Kistner ,  Marc D. Radcliffe ,  Patricia M. Savu ,  Daniel C. Snustad

    发明人： John F. Kistner ,  Marc D. Radcliffe ,  Patricia M. Savu ,  Daniel C. Snustad

    IPC分类号： G02F1/13 ,  C07D239/26 ,  C07D239/34 ,  C09K19/04 ,  C09K19/34 ,  C09K19/06 ,  C07C22/00 ,  C09K19/30

    CPC分类号： C07D239/26 ,  C09K19/04 ,  C09K19/3458 ,  C09K19/3469

    摘要： A process for controlling the cone tilt angle of a tilted smectic liquid crystal composition comprises the step of combining (a) at least one liquid crystal composition comprising at least one smectic or latent smectic liquid crystal compound comprising (i) an aliphatic fluorocarbon terminal portion comprising a terminal fluoroalkyl or fluoroether group and an alkylene group having at least two carbon atoms and containing at least one catenary ether oxygen atom, (ii) an aliphatic hydrocarbon terminal portion, and (iii) a central core connecting the terminal portions; and (b) at least one liquid crystal composition comprising at least one smectic or latent smectic liquid crystal compound; with the provisos that at least one of the compositions (a) and (b) comprises at least one chiral liquid crystal compound and that the combining of compositions (a) and (b) provides an optically active, tilted chiral smectic liquid crystal composition. The process enables control of cone tilt angle and thereby control of the brightness characteristics of liquid crystal display devices.

    摘要翻译： 用于控制倾斜的近晶液晶组合物的锥体倾斜角的方法包括将（a）至少一种液晶组合物组合的步骤，所述液晶组合物包含至少一种近晶或潜暗的近晶液晶化合物，所述液晶组合物包含（i）脂族碳氟化合物末端部分， 末端氟代烷基或氟代醚基和具有至少两个碳原子并含有至少一个链烯氧原子的亚烷基，（ii）脂肪族烃末端部分和（iii）连接末端部分的中心核心; 和（b）至少一种液晶组合物，其包含至少一种近晶或潜层间的近晶液晶化合物; 条件是组合物（a）和（b）中的至少一种包含至少一种手性液晶化合物，并且组合物（a）和（b）的组合提供光学活性的倾斜手性近晶液晶组合物。 该过程能够控制锥形倾斜角度，从而控制液晶显示装置的亮度特性。