利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

53 条记录 (耗时 0.048 秒)

    Liquid crystal, liquid crystal mixture having Tau-V min mode driving with negative or zero temperature dependency
    12.
    发明授权
    Liquid crystal, liquid crystal mixture having Tau-V min mode driving with negative or zero temperature dependency 失效
    具有Tau-V min模式驱动的液晶，液晶混合物具有负温度或零温度依赖性

    公开(公告)号：US06246452B1

    公开(公告)日：2001-06-12

    申请号：US08545198

    申请日：1995-10-19

    申请人： Chizu Sekine ,  Kyoko Yamamoto ,  Koichi Fujisawa ,  Yukari Fujimoto ,  Tsutomu Matsumoto ,  Masayoshi Minai

    发明人： Chizu Sekine ,  Kyoko Yamamoto ,  Koichi Fujisawa ,  Yukari Fujimoto ,  Tsutomu Matsumoto ,  Masayoshi Minai

    IPC分类号： G02F1133

    CPC分类号： C09K19/345 ,  C09K19/46

    摘要： A ferroelectric chiral smectic liquid crystal mixture comprising at least one compound of the formula (I): wherein R11 and R12 represent, independently each other, a C1-C20 alkyl, alkoxy or alkoxyalkyl group which may be substituted by at least one halogen atom and may have an unsaturated bond; A11, A12 and A13 represent, independently each other, a phenylene group which may be substituted by a fluorine atom, or the like; * indicates an asymmetric carbon atom; Z is a hydrogen atom or a fluorine atom; n is an integer of 0 to 10; r, s, t and u are each 0 or 1, provided that when u is 1, the compound (I) is a trans-olefin, and at least one compound of the formula (II): wherein R21 is a saturated or unsaturated C3-C20 alkyl group or a saturated or unsaturated C3-C20 alkoxyalkyl group; A21, A22 and A23 represent, independently each other, a phenylene group which may be substituted by a fluorine atom or the like; X2 is —C≡C— or the like; Z is a hydrogen atom or a fluorine atom; n is an integer of 1 to 10; m is 0 or 1; and * indicates an asymmetric carbon atom, which liquid crystal mixture has a high response speed and a small dependency of &tgr;-Vmin characteristic on temperature and a wide temperature driving margin.

    摘要翻译： 一种铁电手性近晶液晶混合物，其包含至少一种式（I）化合物：其中R 11和R 12彼此独立地表示可以被至少一个卤素原子取代的C 1 -C 20烷基，烷氧基或烷氧基烷基， 可具有不饱和键; A11，A12和A13彼此独立地表示可被氟原子取代的亚苯基等; *表示不对称碳原子; Z是氢原子或氟原子; n为0〜10的整数。 r，s，t和u各自为0或1，条件是当u为1时，化合物（I）为反式烯烃，和至少一种式（II）化合物：其中R 21为饱和或不饱和的 C3-C20烷基或饱和或不饱和C3-C20烷氧基烷基; A21，A22和A23彼此独立地表示可以被氟原子等取代的亚苯基; X 2是-C = C - 等; Z是氢原子或氟原子; n为1〜10的整数。 m为0或1; 和*表示不对称碳原子，该液晶混合物具有较高的响应速度，并且对于温度和宽温度驱动裕度具有较小的依赖性。