Liquid crystal composition, liquid crystal device and liquid crystal
display apparatus
    3.
    发明授权
    Liquid crystal composition, liquid crystal device and liquid crystal display apparatus 失效
    液晶组合物,液晶装置和液晶显示装置

    公开(公告)号:US5728318A

    公开(公告)日:1998-03-17

    申请号:US555063

    申请日:1995-11-08

    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。

    Liquid crystal composition, liquid crystal device and liquid crystal
apparatus
    8.
    发明授权
    Liquid crystal composition, liquid crystal device and liquid crystal apparatus 失效
    液晶组合物,液晶装置和液晶装置

    公开(公告)号:US5744059A

    公开(公告)日:1998-04-28

    申请号:US592180

    申请日:1996-01-26

    摘要: A liquid crystal composition contains a mesomorphic compound represented by the following formula (A): ##STR1## wherein R.sub.1 denotes a linear or branched alkyl group having 1-18 carbon atoms; X.sub.1 denotes a single bond, --O--, --CO--O-- or --O--CO--; X.sub.2 denotes a single bond, --OCH.sub.2 --, --CO--O-- or --O--CO--; n is an integer of 3-16; and A.sub.1, denotes ##STR2## and a mesomorphic compound represented by the following formula (B): ##STR3## wherein R.sub.2 denotes a linear or branched alkyl group having 1-18 carbon atoms; X.sub.3 and X.sub.4 independently denote a single bond, --O--, --CO--O-- or --O--CO--; m is an integer of 3-16; and A.sub.2 denotes ##STR4## 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 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-; X2表示单键,-OCH2-,-CO-O-或-O-CO-; n为3-16的整数; (B)表示的介晶化合物:其中,R 2表示具有1-18个碳原子的直链或支链烷基; X3和X4独立地表示单键,-O - , - CO-O-或-O-CO-; m为3-16的整数; 并且A2表示作为手性近晶液晶组合物配制的 e。 液晶组合物可用于提供使用具有良好的取向特性,良好的驱动特性和高对比度的液晶组合物的液晶装置。