Polymeric liquid-crystal compound, polymeric liquid-crystal composition,
and polymeric liquid-crystal device
    17.
    发明授权
    Polymeric liquid-crystal compound, polymeric liquid-crystal composition, and polymeric liquid-crystal device 失效
    聚合物液晶化合物,聚合物液晶组合物和聚合物液晶装置

    公开(公告)号:US5614125A

    公开(公告)日:1997-03-25

    申请号:US820806

    申请日:1992-01-15

    摘要: The present invention provides a polymeric liquid-crystal compound having a repeating unit represented by Formula (I) ##STR1## wherein U represents a polymer main chain; V represents --(CH.sub.2).sub.m --, --((CH.sub.2).sub.2 --O).sub.m -- or --(CH.sub.2).sub.n --((CH.sub.2).sub.2 --O).sub.p --, one or more of methylene hydrogen atoms of which may be substituted with an alkyl group, a halogen atom, a cyano group, an amino group or a carbonyl group, and m, n and p each represents an integer of 0 to 30; W represents a single bond, --O--, --OCO--, --COO--, --CONR.sup.1 --, --CO-- or --NR.sup.1, where R.sup.1 represents a hydrogen atom or an alkyl group; X represents two or more rings of a substituted or unsubstituted aliphatic ring or aromatic ring of benzene ring, heteroaromatic ring or condensed ring, which rings are bonded through a single bond, --O--, --OCO--, --COO--, --(CH.sub.2).sub.q --, --N.dbd.N--, --(CH.dbd.CH).sub.q --, --CH.dbd.N--, --(C.tbd.C).sub.q --, --CONR.sup.1 --, --(CO).sub.q --, or --NR.sup.1 --, where q represents an integer of 1 to 10; Y represents a substituted or unsubstituted alkyl group; and the mark * represents an asymmetric carbon atom.

    摘要翻译: 本发明提供具有由式(I)表示的重复单元的聚合物液晶化合物,其中U表示聚合物主链; V表示 - (CH 2)m - , - ((CH 2)2 -O)m - 或 - (CH 2)n - ((CH 2)2 -O)p - ,其一个或多个亚甲基氢原子可被取代 具有烷基,卤原子,氰基,氨基或羰基,m,n和p各自表示0〜30的整数, W表示单键,-O - , - OCO - , - COO - , - CONR 1 - , - CO-或-NR 1,其中R 1表示氢原子或烷基; X表示取代或未取代的苯环,杂芳环或稠环的脂族环或芳环的两个或多个环,该环通过单键键合-O - , - OCO - , - COO - , - (CH 2 )q-,-N = N-, - (CH = CH)q - , - CH = N - , - (C 3BOND C)q - , - CONR1-, - (CO)q-或-NR1- 其中q表示1〜10的整数; Y表示取代或未取代的烷基; 标记*表示不对称碳原子。

    Polymeric liquid crystal composition and liquid crystal device
    18.
    发明授权
    Polymeric liquid crystal composition and liquid crystal device 失效
    聚合物液晶组合物和液晶装置

    公开(公告)号:US5384069A

    公开(公告)日:1995-01-24

    申请号:US938596

    申请日:1992-09-03

    摘要: A polymeric liquid crystal composition includes a polymer mesomorphic compound having an asymmetric carbon atom and a low-molecular weight mesomorphic compound. The composition can be easily formed into a film of a large area, exhibits a response speed which is not substantially different from that of the low-molecular weight mesomorphic compound alone and stably retains alignment resistant to pressure or heat impact. Such a good alignment is especially obtained when the polymeric liquid crystal composition is incorporated in a liquid crystal device by being disposed between a pair of substrates preferably having an alignment face provided with an orientation characteristic for aligning the molecular axis of the liquid crystal composition in one direction. It is suitable that the polymer mesomorphic compound is optically active and has a helical rotation direction opposite to that of the low-molecular weight mesomorphic compound.

    摘要翻译: 聚合物液晶组合物包括具有不对称碳原子的聚合物介晶化合物和低分子量介晶化合物。 组合物可以容易地形成大面积的膜,显示出与单独的低分子量介晶化合物基本上不同的响应速度,并且稳定地保持耐压力或热冲击的取向。 当聚合物液晶组合物通过配置在优选具有将液晶组合物的分子轴在一个对准方向上具有取向特性的对准面的一对基板配置在液晶装置中时,特别优选对准 方向。 聚合物介晶化合物是光学活性的并且具有与低分子量介晶化合物相反的螺旋旋转方向是合适的。