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149 条记录 (耗时 0.033 秒)

    Tercyclohexane, liquid-crystalline compound and liquid crystal composition comprising same
    1.
    发明授权
    Tercyclohexane, liquid-crystalline compound and liquid crystal composition comprising same 失效
    三环己烷，液晶化合物和包含它们的液晶组合物

    公开(公告)号：US6030545A

    公开(公告)日：2000-02-29

    申请号：US663925

    申请日：1996-06-14

    申请人： Shuichi Matsui ,  Kazutoshi Miyazawa ,  Takashi Kato ,  Yasuko Sekiguchi ,  Etsuo Nakagawa

    发明人： Shuichi Matsui ,  Kazutoshi Miyazawa ,  Takashi Kato ,  Yasuko Sekiguchi ,  Etsuo Nakagawa

    IPC分类号： C07C17/16 ,  C07C22/00 ,  C09K19/30 ,  C09K19/42 ,  C09K19/44 ,  C09K19/46

    CPC分类号： C09K19/46 ,  C07C17/16 ,  C07C22/00 ,  C09K19/3001 ,  C09K19/3003 ,  C09K19/3028 ,  C09K19/42 ,  C09K19/44 ,  C09K2019/0448 ,  C09K2019/0451 ,  C09K2019/3006 ,  Y10T428/1036

    摘要： The present invention provides a liquid-crystalline compound which has a reduced viscosity, a wide liquid crystal temperature range (high clearing point), a high chemical stability (extremely high specific resistance, high voltage holding ratio) and a high solubility with other liquid-crystalline compound(s) and preferably has a proper refractive index anisotropy. The present invention also provides a liquid crystal composition having excellent properties. The liquid-crystalline compound is represented by the following general formula (1): wherein R and R' each independently represents a C.sub.1-20 alkyl or halogenated alkyl group or a group obtained by replacing one or more --CH.sub.2 -- groups in the alkyl group by any of --O--, --S--, --CH.dbd.CH-- or --C.tbd.C--, provided that two or more --CH.sub.2 -- groups are not consecutively replaced by either --O-- or --S--; and Z.sub.1 and Z.sub.2 each independently represents a covalent bond or 1,2-ethylene group, provided that when both Z.sub.1 and Z.sub.2 are a covalent bond, R and R' are not straight-chain alkyl groups each having the same chain length.

    摘要翻译： 本发明提供一种液晶性化合物，其具有比较低的粘度，宽的液晶温度范围（高透明度），高化学稳定性（高电阻率，高电压保持率）和与其它液体 - 结晶化合物，并且优选具有适当的折射率各向异性。 本发明还提供具有优异性能的液晶组合物。 液晶化合物由以下通式（1）表示：其中R和R'各自独立地表示C1-20烷基或卤代烷基或通过置换烷基中的一个或多个-CH 2 - 基团而获得的基团 通过-O - ， - S - ， - CH = CH-或-CB 3 C - 中的任何基团，条件是两个或更多个-CH 2 - 基团不被-O-或-S-连续替代; 并且Z 1和Z 2各自独立地表示共价键或1,2-亚乙基，条件是当Z1和Z2均为共价键时，R和R'不是具有相同链长的直链烷基。

    Liquid crystalline compound replaced by fluorine containing group, liquid crystal composition, and liquid crystal display device
    2.
    发明授权
    Liquid crystalline compound replaced by fluorine containing group, liquid crystal composition, and liquid crystal display device 失效
    由含氟基团，液晶组合物和液晶显示装置取代的液晶化合物

    公开(公告)号：US6013198A

    公开(公告)日：2000-01-11

    申请号：US921799

    申请日：1997-09-02

    申请人： Kazutoshi Miyazawa ,  Shuichi Matsui ,  Tomoyuki Kondo ,  Takashi Kato ,  Yasuko Sekiguchi ,  Etsuo Nakagawa

    发明人： Kazutoshi Miyazawa ,  Shuichi Matsui ,  Tomoyuki Kondo ,  Takashi Kato ,  Yasuko Sekiguchi ,  Etsuo Nakagawa

    IPC分类号： C07C43/225 ,  C09K19/30 ,  C07C19/08 ,  C07C22/00 ,  C09K19/12

    CPC分类号： C09K19/3028 ,  C07C43/225 ,  C09K19/3001

    摘要： Liquid crystalline compounds are disclosed which compounds are expressed by general formula (1) ##STR1## wherein R.sub.1 represents an alkyl group having 1 to 10 carbon atoms, ring A represents 1,4-phenylene or 1,4-cyclohexylene, each of X.sub.1, X.sub.2, X.sub.3, and X.sub.4 independently represents hydrogen atom or fluorine atom, Y.sub.1 represents CF.sub.3 or OCF.sub.3, and each of m, n, and p is independently an integer of 1 or 0. The liquid crystalline compounds have a wide temperature. The liquid crystalline compounds have a wide temperature range of nematic phase, low viscosity, large positive .DELTA..epsilon., high chemical stability, high miscibility with other liquid crystalline compounds at low temperatures, small temperature dependency of viscosity and .DELTA..epsilon., extremely high specific resistance (high voltage holding ratio), and good UV stability, and are preferably used for TFT. Also, disclosed are liquid crystal compositions containing the liquid crystalline compounds mentioned above, and liquid crystal display devices using the liquid crystal composition.

    摘要翻译： 公开了液晶化合物，其中化合物由通式（1）表示，其中R 1表示具有1-10个碳原子的烷基，环A表示1,4-亚苯基或1,4-亚环己基，各自为X1，X2，X3 X 4独立地表示氢原子或氟原子，Y1表示CF 3或OCF 3，m，n和p各自独立地为1或0的整数。液晶化合物的温度宽。 液晶化合物具有宽的向列相温度范围，低粘度，大的正DELTAε，高化学稳定性，低温下与其它液晶化合物的高混溶性，粘度和DELTAε的温度依赖性低，电阻率极高（ 高电压保持率），良好的紫外线稳定性，优选用于TFT。 此外，还公开了含有上述液晶化合物的液晶组合物和使用该液晶组合物的液晶显示装置。

    Bisalkenyl derivatives, liquid crystalline compounds and liquid crystal compositions
    4.
    发明授权
    Bisalkenyl derivatives, liquid crystalline compounds and liquid crystal compositions 失效
    双链烯基衍生物，液晶化合物和液晶组合物

    公开(公告)号：US06180027B2

    公开(公告)日：2001-01-30

    申请号：US09101990

    申请日：1998-07-22

    申请人： Takashi Kato ,  Shuichi Matsui ,  Kazutoshi Miyazawa ,  Yasuko Sekiguchi ,  Etsuo Nakagawa

    发明人： Takashi Kato ,  Shuichi Matsui ,  Kazutoshi Miyazawa ,  Yasuko Sekiguchi ,  Etsuo Nakagawa

    IPC分类号： C09K1930

    CPC分类号： C09K19/3001 ,  C07F7/081 ,  C07F7/0812 ,  C07F7/0896 ,  C09K19/04

    摘要： Liquid crystalline compounds expressed by the following formula (1), liquid crystal compositions thereof obtained by combination with specified liquid crystal compounds, and liquid crystal display devices using them, wherein, A1, A2, A3 and A4 denote each independently trans-1,4-cyclohexylene group etc.; Z1, Z2 and Z3 denote each independently —(CH2)2— etc.; Q1 and Q2 denote each independently H, F, Cl or Br; Q3 and Q4 denote each independently F, Cl or Br; 1, m and n denote each independently an integer of from 0 to 5; and p and q denote each independently an integer of 0 or 1.

    摘要翻译： 由下式（1）表示的液晶化合物，与特定液晶化合物组合得到的液晶组合物和使用它们的液晶显示装置，其中，A1，A2，A3和A4各自独立地表示反式-1,4 环己基等; Z1，Z2和Z3各自独立地表示 - （CH2）2-等; Q1和Q2各自独立地表示H，F，Cl或Br; Q3和Q4各自独立地表示F，Cl或Br; 1，m和n各自独立地表示0〜5的整数， p和q各自独立地表示0或1的整数。

    Vinylene compounds and liquid-crystal composition
    10.
    发明授权
    Vinylene compounds and liquid-crystal composition 失效
    维尼尼亚化合物和液晶组成

    公开(公告)号：US06337034B1

    公开(公告)日：2002-01-08

    申请号：US09125685

    申请日：1998-08-24

    申请人： Tomoyuki Kondo ,  Shuichi Matsui ,  Kazutoshi Miyazawa ,  Yasuko Sekiguchi ,  Etsuo Nakagawa

    发明人： Tomoyuki Kondo ,  Shuichi Matsui ,  Kazutoshi Miyazawa ,  Yasuko Sekiguchi ,  Etsuo Nakagawa

    IPC分类号： C09K1930

    CPC分类号： C07D213/79 ,  C07C69/75 ,  C07C69/753 ,  C07C69/76 ,  C07D213/80 ,  C07D239/28 ,  C07D239/34 ,  C07D319/06 ,  C09K19/04 ,  C09K19/3001 ,  C09K19/3068

    摘要： Liquid crystalline compounds which have a wide temperature range of liquid crystal phase, low viscosity, and improved threshold voltage; liquid crystal compositions; and liquid crystal display devices comprising the composition can be provided; and the liquid crystalline compounds are expressed by the general formula (1) Ra—A1—Z1—A2—Z2—A3—(Z3—A4)m—Rb  (1) wherein Ra represents an alkyl group having 1 to 20 carbon atoms one or more —CH2— in which alkyl group may be replaced by —O— or the like, and one or more hydrogen atoms in which alkyl group may be replaced by a halogen atom; Rb represents Ra, a halogen atom, or cyano group; A1, A2, A3, and A4 independently represent a divalent ring group; Z1, Z2, and Z3 independently represent an alkenylene group having 2 to 4 carbon atoms, —COO—, a covalent bond, or the like provided that at least one of Z1 to Z3 represents an alkenylene group having 2 to 4 carbon atoms, and at least one of Z1 to Z3 represents —COO— or —OCO—; and m is 0 or 1.

    摘要翻译： 具有液晶相温度范围宽，粘度低，阈值电压提高的液晶化合物; 液晶组合物; 并且可以提供包含该组合物的液晶显示装置; 并且液晶化合物由通式（1）表示，其中R a表示具有1至20个碳原子的烷基，一个或多个-CH 2 - ，其中烷基可以被-O-取代，以及一个或 更多的氢原子，其中烷基可被卤素原子取代; Rb表示Ra，卤素原子或氰基; A1，A2，A3和A4独立地表示二价环基团; Z 1，Z 2和Z 3独立地表示具有2〜4个碳原子的亚烯基，-COO-，共价键等，条件是Z1至Z3中的至少一个表示具有2至4个碳原子的亚烯基， Z1至Z3中的至少一个表示-COO-或-OCO-; m为0或1。