Liquid crystal electro-optical display
    1.
    发明授权
    Liquid crystal electro-optical display 失效
    液晶电光显示

    公开(公告)号:US3981558A

    公开(公告)日:1976-09-21

    申请号:US415200

    申请日:1973-11-12

    IPC分类号: C09K19/48 C09K3/34 G02F1/13

    CPC分类号: C09K19/48

    摘要: An electro-optical display, utilizing the field effect display, includes a thin layer of liquid crystal material positioned between two plates having electrically conductive segments. The material is a mixture of a selected stilbene, such as trans-4-n-butyl-alpha-chloro-4'-ethoxystilbene and a selected substituted benzylideneaminobenzonitrile, such as p-ethoxy-benzylidene-p'-aminobenzonitrile.

    摘要翻译: 使用场效应显示器的电光显示器包括位于具有导电段的两个板之间的薄层液晶材料。 该物质是选择的二苯乙烯的混合物,例如反式-4-正丁基-α-氯-4'-乙氧基茋和选择的取代的亚苄基氨基苄腈,例如对乙氧基 - 亚苄基-p'-氨基苄腈。

    Liquid crystal compositions and devices
    2.
    发明授权
    Liquid crystal compositions and devices 失效
    液晶组成和装置

    公开(公告)号:US3956167A

    公开(公告)日:1976-05-11

    申请号:US361333

    申请日:1973-05-17

    申请人: Chan Soo Oh

    发明人: Chan Soo Oh

    IPC分类号: C09K19/22 G02F1/13 C09K3/34

    CPC分类号: C09K19/22

    摘要: Improved liquid crystal compositions comprise a major portion by weight of at least three different p-alkoxybenzylidene-p'-aminophenylalkanoates and a minor portion by weight of p-methoxybenzylidene-p'-butylaniline and p-ethoxybenzylidene-p'-butylaniline. The compositions have broader nematic ranges than either ternary mixtures of the alkanoates or binary mixtures of the other two compounds. In addition, when certain dopants are added to the compositions, optimum improvement in properties is obtained using less dopant than that required by prior art compositions.

    摘要翻译: 改进的液晶组合物包含至少三种不同的对 - 烷氧基亚苄基 - 对氨基苯基链烷酸酯的重要部分重量份和少量重量的对甲氧基亚苄基 - 对 - 丁基苯胺和对 - 乙氧基亚苄基 - 对 - 丁基苯胺。 组合物具有比链烷酸酯的三元混合物或其它两种化合物的二元混合物更广泛的向列范围。 此外,当将某些掺杂剂添加到组合物中时,使用比现有技术组合物所需的更少的掺杂剂获得最佳的性能改进。

    Alkoxybenzylidene-aminobenzonitriles
    3.
    发明授权
    Alkoxybenzylidene-aminobenzonitriles 失效
    烷氧基亚苄基 - 氨基苯胺

    公开(公告)号:US3996260A

    公开(公告)日:1976-12-07

    申请号:US611552

    申请日:1975-09-08

    IPC分类号: C09K19/58 C07C121/80

    CPC分类号: C09K19/586

    摘要: Liquid crystal cells containing mixtures of cholesteric optically active p-alkoxybenzylidene-p'-aminobenzonitrile compounds with nematic liquid crystal compounds form cholesteric liquid crystals which change to the nematic stage upon application of an electric field. Electro-optic devices including such liquid crystals have low voltage requirements and rapid response times.

    摘要翻译: 含有胆固醇光学活性对 - 烷氧基亚苄基 - 对氨基苯甲腈化合物与向列型液晶化合物的液晶的液晶单元形成胆甾型液晶,其在施加电场时变为向列相。 包括这种液晶的电光器件具有低电压要求和快速响应时间。