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126 条记录 (耗时 0.033 秒)

    Liquid crystal composition, liquid crystal device, display apparatus and display method
    112.
    发明授权
    Liquid crystal composition, liquid crystal device, display apparatus and display method 失效
    液晶组合物，液晶装置，显示装置及显示方法

    公开(公告)号：US5250218A

    公开(公告)日：1993-10-05

    申请号：US836964

    申请日：1992-02-19

    申请人： Shosei Mori ,  Masataka Yamashita ,  Kazuharu Katagiri ,  Kenji Shinjo ,  Masahiro Terada

    发明人： Shosei Mori ,  Masataka Yamashita ,  Kazuharu Katagiri ,  Kenji Shinjo ,  Masahiro Terada

    IPC分类号： C09K19/34 ,  C09K19/42 ,  C09K19/44 ,  C09K19/46 ,  G02F1/13 ,  G09G3/36 ,  C09K19/30

    CPC分类号： C09K19/42 ,  C09K19/3491 ,  C09K19/3497 ,  C09K19/44 ,  C09K19/46

    摘要： A liquid crystal composition, comprising: at least one mesomorphic compound represented by the following formula (I): ##STR1## wherein R.sup.1 and R.sup.2 independently denote a linear or branched alkyl group having 1-18 carbon atoms capable of including one or non-neighboring two or more methylene groups which can be replaced with at least one species of --O--, --CO--, --COO--, --OCO--, --OCOO-- or --CH(X)-- with the proviso that --O-- cannot directly be connected to --O-- and X denotes halogen; Z.sup.1 denotes --COO-- or --CH.sub.2 O--; X.sup.1 and X.sup.2 independently denote a single bond, --O--, --COO--, --OCO--, --CO-- or --OCOO--; A.sup.1 denotes a single bond, ##STR2## Y.sup.1 and Y.sup.2 independently denote hydrogen, halogen, --CH.sub.3 -- or CF.sub.3 --; and at least one mesomorphic compound represented by the following formula (II): ##STR3## wherein R.sup.3 and R.sup.4 independently denote a linear or branched alkyl group having 1-18 carbon atoms capable of including one or non-neighboring two or more methylene groups which can be replaced with at least one species of --O--, --CO--, --COO--, --OCO--, --OCOO-- or --CH(X)-- with the proviso that --O-- cannot directly be connected to --O-- and X denotes halogen; X.sup.3 and X.sup.4 independently denotes a single bond, --O--, --COO--, --OCO-- or --CO--; Z.sup.2 denotes a single bond, --COO-- or --OCO--; A.sup.2, A.sup.3 and A.sup.4 independently denote a single bond, ##STR4## Y.sup.3 and Y.sup.4 independently denote hydrogen, halogen, --CH.sub.3 or --CF.sub.3 ; and k is 0 or 1 with the proviso that X.sup.3 is a single bond when A.sup.2 is a single bond, and X.sup.4 is a single bond when A.sup.3 is a single bond and k is 0. The liquid crystal composition is easily aligned by a simple rubbing method to provide a uniform monodomain and further provides wider driving voltage and temperature margins effective for providing a practical ferroelectric liquid crystal device.

    Driving method for ferroelectric liquid crystal optical modulation device using an auxiliary signal to prevent inversion
    116.
    发明授权
    Driving method for ferroelectric liquid crystal optical modulation device using an auxiliary signal to prevent inversion 失效
    使用辅助信号的电磁液晶光学调制装置的驱动方法以防止反相

    公开(公告)号：US5092665A

    公开(公告)日：1992-03-03

    申请号：US390922

    申请日：1989-08-08

    申请人： Junichiro Kanbe ,  Kazuharu Katagiri

    发明人： Junichiro Kanbe ,  Kazuharu Katagiri

    IPC分类号： G09G3/36

    CPC分类号： G09G3/3629 ,  G09G2310/04 ,  G09G2310/06 ,  G09G2310/063 ,  G09G2320/0209 ,  Y10S359/90

    摘要： A driving method for an optical modulation device comprising matrix picture elements each formed at intersecting points of scanning lines and data lines between which a bistable optical modulation material represented by a ferroelectric liquid crsytal is interposed. The driving method comprises an erasure step of applying a voltage signal orienting the optical modulation material to the first stable state between the scanning and data lines, at all or a part of the matrix picture elements, and a writing step of sequentially applying a scanning selection signal to the scanning lines and applying an information orientation signal orienting the optical modulation material to the second stable state to the data lines in phase with the scanning selection signal.

    摘要翻译： 一种光调制装置的驱动方法，包括各自形成在扫描线和数据线的交点处的矩阵像素，其中插入由铁电液体crsytal表示的双稳态光学调制材料。 该驱动方法包括一个擦除步骤，在全部或一部分矩阵像素上施加将光调制材料定向到扫描线和数据线之间的第一稳定状态的电压信号，以及顺序施加扫描选择的写入步骤 信号到扫描线，并且将与光扫描选择信号同相的将光调制材料定向到第二稳定状态的信息取向信号发送到数据线。

    Lactic acid derivative and liquid crystal composition containing same
    120.
    发明授权
    Lactic acid derivative and liquid crystal composition containing same 失效
    含有乳酸衍生物和液晶组合物

    公开(公告)号：US4882085A

    公开(公告)日：1989-11-21

    申请号：US291325

    申请日：1988-12-28

    申请人： Kazuo Yoshinaga ,  Kazuharu Katagiri ,  Akira Tsuboyama ,  Hiroyuki Kitayama ,  Kenji Shinjo ,  Chieko Hioki

    发明人： Kazuo Yoshinaga ,  Kazuharu Katagiri ,  Akira Tsuboyama ,  Hiroyuki Kitayama ,  Kenji Shinjo ,  Chieko Hioki

    IPC分类号： C07C43/23 ,  C07C45/46 ,  C07C49/84 ,  C07C69/773 ,  C07D239/26 ,  C09K19/20 ,  C09K19/34

    CPC分类号： C07D239/26 ,  C07C43/23 ,  C07C45/46 ,  C07C49/84 ,  C09K19/2021 ,  C09K19/3463

    摘要： An optically active lactic acid derivative represented by the following formula (I): ##STR1## wherein R represents a linear, branched or cyclic saturated or unsaturated hydrocarbon group having 1 to 18 carbon atoms; C* represents an asymmetric carbon atom; l is 0 or 1; m is 1 or 2; A represents a group selected from the following groups (a) and (b):(a) hydroxyl group, halogen, benzyloxy group, phenoxy group, toluenesulfonic acid group, acetyloxy group trifluoroacetyloxy group; ##STR2## (wherein R' is an alkyl group or alkoxy group having 4 to 18 carbon atoms, n is 0 or 1, ##STR3## with proviso that when A is selected from the group in the above group (a), l is 1 and m is 1 or 2; and when A is selected from the groups in the above group (b), m=n=1 when l is 0, or m and n are 0, 1 or 2 and m+n is 1 or 2 when l is 1, and ##STR4##

    摘要翻译： 由下式（I）表示的光学活性乳酸衍生物：其中R表示具有1至18个碳原子的直链，支链或环状饱和或不饱和烃基; C *表示不对称碳原子; l为0或1; m为1或2; A表示选自以下组（a）和（b）中的基团：（a）羟基，卤素，苄氧基，苯氧基，甲苯磺酸基，乙酰氧基三氟乙酰氧基; （其中R'为具有4至18个碳原子的烷基或烷氧基，n为0或1，条件是当A选自上述组（a）中时，l为 1和m为1或2;当A选自上述组（b）中的基团时，当l为0时，m = n = 1，或m和n为0,1或2，m + n为1 或当l为1时为2，而为