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71 条记录 (耗时 0.031 秒)

    Liquid crystal mixture and liquid crystal device comprising the same
    18.
    发明授权
    Liquid crystal mixture and liquid crystal device comprising the same 失效
    液晶混合物和包含该液晶混合物的液晶装置

    公开(公告)号：US5762825A

    公开(公告)日：1998-06-09

    申请号：US538909

    申请日：1995-10-04

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

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

    IPC分类号： C09K19/30 ,  C09K19/42 ,  C09K19/44 ,  C09K19/46 ,  C09K19/06 ,  C09K19/12 ,  C09K19/34

    CPC分类号： C09K19/3001 ,  C09K19/42 ,  C09K19/44 ,  C09K19/46

    摘要： A liquid crystal mixture containing (a) at least one compound of a compound of the formula (1): ##STR1## in which R is a C.sub.1 -C.sub.12 alkyl group, etc.; X.sub.1, X.sub.2, X.sub.3, X.sub.4, Y.sub.1, Y.sub.2, Y.sub.3 and Y.sub.4 represent, independently each other, CH, CF or N; A is a hydrogen atom, a 4-R.sub.1 -(cycloalkyl) group, etc. in which R.sub. is a C.sub.1 -C.sub.12 alkyl group, etc. and p is 0 or 1; and Z is --C.tbd.C-- or a single bond, and (b) at least one compound of the formula (4): ##STR2## wherein rings C, D, E and F represent, independently each other, 1,4-phenylene, etc. which may be substituted by 1, 2 or 3 fluorine atoms; R.sub.2 is a hydrogen atom, a C.sub.1 -C.sub.12 alkyl group, etc.; R.sub.3 is a hydrogen atom, a fluorine atom, a fluoromethyl group, etc.; Z.sub.1, Z.sub.2 and Z.sub.3 represent, independently each other, --COO--, --OCO--, --OCH.sub.2 --, --CH.sub.2 O--, a C.sub.1 -C.sub.5 alkylene group, a C.sub.2 -C.sub.5 alkenylene group, etc.; J and K represent, independently each other, a methylene group or --O--; a, b, c, d and e represent, independently each other, 0 or 1.

    摘要翻译： 一种液晶混合物，其含有（a）至少一种式（1）化合物的化合物：其中R是C1-C12烷基等;其中R是C1-C12烷基; X1，X2，X3，X4，Y1，Y2，Y3和Y4彼此独立地表示CH，CF或N; A是氢原子，4-R1-（环烷基）基等，其中R 1是C 1 -C 12烷基等，p是0或1; 和（b）至少一种式（4）的化合物：其中环C，D，E和F各自独立地表示， 可以被1,2或3个氟原子取代的1,4-亚苯基等; R2是氢原子，C1-C12烷基等; R3是氢原子，氟原子，氟甲基等; Z1，Z2和Z3彼此独立地表示-COO-，-OCO-，-OCH2-，-CH2O-，C1-C5亚烷基，C2-C5亚烯基等; J和K彼此独立地表示亚甲基或-O-; a，b，c，d和e彼此独立地表示0或1。

    Liquid crystal, liquid crystal mixture having Tau-V min mode driving with negative or zero temperature dependency
    19.
    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。