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    Liquid-crystalline medium
    4.
    发明授权
    Liquid-crystalline medium 有权
    液晶介质

    公开(公告)号：US07081280B2

    公开(公告)日：2006-07-25

    申请号：US10882191

    申请日：2004-07-02

    申请人： Michael Heckmeier ,  Brigitte Schuler ,  Kazuaki Tarumi ,  Peer Kirsch ,  Volker Reiffenrath

    发明人： Michael Heckmeier ,  Brigitte Schuler ,  Kazuaki Tarumi ,  Peer Kirsch ,  Volker Reiffenrath

    IPC分类号： C09K19/34 ,  C09K19/30 ,  C09K19/12 ,  C09K19/20

    CPC分类号： C09K19/3066 ,  C09K19/3001 ,  C09K19/3003 ,  C09K19/3028 ,  C09K19/3402 ,  C09K19/42 ,  C09K2019/3422 ,  Y10T428/10

    摘要： A liquid-crystalline medium containing a mixture of polar compounds of positive dielectric anisotropy. The mixture contains one or more compounds of formula I in which: R is H, an alkyl or alkenyl radical having 1 to 15 carbon atoms which is unsubstituted, monosubstituted by CN or CF3 or at least monosubstituted by halogen, where one or more CH2 groups in these radicals are optionally, in each case independently of one another, replaced by —O—, —S—, —CO—, —CO—O—, —O—CO— or —O—CO—O in such a way that O atoms are not linked directly to one another; is a trans-1,4-cyclohexylene ring, in which one or two CH2 groups are optionally replaced by —O— and/or —S—, or a cyclohexenylene ring; Y is halogenated alkyl, halogenated alkenyl, halogenated alkoxy or halogenated alkenyloxy having 1 to 6 carbon atoms; Z is —OCH2—, —CH2CH2—, —CH═CH—, —CF2O—, —OCF2—, —C2F4— or a single bond; and n is 1 or 2. And the mixture contains one or more dioxane compounds of the following formula wherein R0 is n-alkyl, oxoalkyl, fluoroalkyl or alkenyl, in each case having 1 to 7 carbon atoms; and X0 is F, Cl, halogenated alkyl, alkenyl or alkoxy having 1 to 6 carbon atoms.

    摘要翻译： 含有正介电各向异性极性化合物混合物的液晶介质。 该混合物含有一种或多种式I化合物，其中：R为H，具有1至15个碳原子的烷基或链烯基，未被取代，被CN或CF 3'单取代或至少被 卤素，其中这些基团中的一个或多个CH 2 2个基团任选地在每种情况下彼此独立地被-O - ， - S - ， - CO-，-CO-O-， -O-CO-或-O-CO-O，使得O原子彼此不直接连接; 是一个反式-1,4-亚环己基环，其中一个或两个CH 2基团任选被-O-和/或-S-或亚环己烯基环取代; Y为卤代烷基，卤代烯基，卤代烷氧基或具有1至6个碳原子的卤代烯氧基; Z是-OCH 2 - ， - CH 2 CH 2 - ， - CH-CH - ， - CF 2 N 2 O-，-OCF 2 - ， - C 2 F 4 - 或单键; 并且n为1或2.并且该混合物含有一种或多种下式的二恶烷化合物，其中R 0为正烷基，氧代烷基，氟代烷基或烯基，每种情况下具有1至7个碳原子 ; 并且X 0是F，Cl，卤代烷基，烯基或具有1至6个碳原子的烷氧基。