Liquid-crystalline medium
    35.
    发明授权
    Liquid-crystalline medium 有权
    液晶介质

    公开(公告)号:US06287648B1

    公开(公告)日:2001-09-11

    申请号:US09468846

    申请日:1999-12-22

    IPC分类号: C09K1930

    摘要: The invention relates to a liquid-crystalline medium based on a mixture of polar compounds of positive dielectric anisotropy, containing at least one compound of the general formula I in which R1 and R2 are each, independently of one another, an alkyl or alkenyl radical having 1 to 12 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 may also, in each case independently of one another, be 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 and u is 1 or 2.

    摘要翻译: 本发明涉及一种基于正介电各向异性的极性化合物的混合物的液晶介质,其含有至少一种通式Iin的化合物,其中R 1和R 2各自彼此独立地为具有1个 至12个碳原子,其未被取代,被CN或CF 3单取代或至少被卤素单取代,其中这些基团中的一个或多个CH 2基团也可以彼此独立地被-O - , - S- ,-CO-,-CO-O-,-O-CO-或-O-CO-O-,使得O原子彼此不直接连接并且u是1或2。

    Liquid-crystalline medium
    37.
    发明授权
    Liquid-crystalline medium 失效
    液晶介质

    公开(公告)号:US6083573A

    公开(公告)日:2000-07-04

    申请号:US29390

    申请日:1998-02-26

    摘要: The invention relates to a liquid-crystalline medium based on a mixture of polar compounds having positive dielectric anisotropy, characterized in that it comprises one or more compounds of the general formula I ##STR1## in which R is H, an alkyl or alkenyl radical having 1 to 15 carbon atoms which is unsubstituted, monosubstituted by CN or CF.sub.3 or at least monosubstituted by halogen, it also being possible for one or more CH.sub.2 groups in these radicals to be replaced, in each case independently of one another, by --O--, --S-- ##STR2## --CO--, --CO--O--, --O--CO-- or --O--CO--O--in such a way that O atoms are not linked directly to one another,Y is F, Cl, halogenated alkyl, alkenyl or alkoxy having 1 to 6 carbon atoms, andL.sup.1 is F.

    摘要翻译: PCT No.PCT / EP96 / 03636 371日期1998年2月26日 102(e)1998年2月26日PCT PCT 1996年8月19日PCT公布。 出版物WO97 / 09395 日期1997年3月13日本发明涉及一种基于具有正介电各向异性的极性化合物的混合物的液晶介质,其特征在于其包含一种或多种通式I的化合物,其中R为H,烷基或烯基 具有1至15个碳原子的基团,其是未取代的,被CN或CF 3单取代或至少被卤素单取代,也可以在这些基团中的一个或多个CH 2基团彼此独立地被 - O-,-S-CO-,-CO-O-,-O-CO-或-O-CO-O-,使得O原子彼此不直接连接,Y是F,Cl, 卤代烷基,烯基或具有1至6个碳原子的烷氧基,而L1为F.

    Fluorocyclohexane derivatives, and liquid-crystalline medium
    39.
    发明授权
    Fluorocyclohexane derivatives, and liquid-crystalline medium 失效
    氟代环己烷衍生物和液晶介质

    公开(公告)号:US6057006A

    公开(公告)日:2000-05-02

    申请号:US90384

    申请日:1998-06-04

    摘要: The invention relates to fluorocyclohexane derivatives of the formula I ##STR1## in which R.sup.1, Z.sup.1, Z.sup.2, L.sup.1, L.sup.2, L.sup.3 and X are as defined as below:X is alkyl or alkoxy having 1 to 10 carbon atoms which is unsubstituted or substituted by halogen, alkenyl or alkenyloxy having 2 to 10 carbon atoms which is unsubstituted or substituted by --CN, --CF.sub.3 or --F, or is --CN, --F, --OCHF.sub.2, --OCF.sub.3, --OCHFCF.sub.3 or --OCF.sub.2 CF.sub.3,L.sup.1, L.sup.2 and L.sup.3 are each, independently of one another, H or F,R.sup.1 is H, an alkyl or alkenyl radical having 1-12 carbon atoms which is unsubstituted, monosubstituted by CN or CF.sub.3 or substituted by halogen, where one or more non-adjacent CH.sub.2 groups in these radicals may also, in each case independently of one another, be replaced by --O--, --S--, --CO--, --.diamond.--, --CO--O--, --O--CO-- or --O--CO--O--,Z.sup.1 and Z.sup.2 are each, independently of one another, --CO--O--, --O--CO--, --CH.sub.2 O--, --O--, --O--CH.sub.2 --, --CH.sub.2 CH.sub.2 --, --CH.dbd.CH--, --C.tbd.C-- or a single bond,with the proviso that compounds of the formula I in which L.sup.1 is H and Z.sup.2 is simultaneously a single bond are excluded.

    摘要翻译: 本发明涉及式Ⅰ的氟代环己烷衍生物,其中R1,Z1,Z2,L1,L2,L3和X定义如下:X是未取代或被卤素取代的具有1-10个碳原子的烷基或烷氧基, 具有2至10个碳原子的未被取代或被-CN,-CF 3或-F取代或具有-CN,-F,-OCHF 2,-OCF 3,-OCHFCF 3或-OCF 2 CF 3,L 1,L 2和L 3的链烯基或烯氧基是 各自独立地是H或F,R 1是H,具有1-12个碳原子的烷基或烯基,其是未取代的,被CN或CF 3单取代或被卤素取代,其中一个或多个不相邻的CH 2基团在 这些基团也可以彼此独立地被-O - , - S-,-CO-, - + 566 - , - CO-O-,-O-CO-或-O-CO- O-,Z 1和Z 2各自独立地为-CO-O-,-O-CO-,-CH 2 O - , - O - , - O-CH 2 - , - CH 2 CH 2 - , - CH = CH-, -C 3BOND C-或单键,条件是其中L1为H且Z2为同源的式I化合物 非常单一的债券被排除在外。