Fluoroalkenyl derivative and liquid crystal composition
    11.
    发明授权
    Fluoroalkenyl derivative and liquid crystal composition 失效
    氟烯基衍生物和液晶组合物

    公开(公告)号:US5989452A

    公开(公告)日:1999-11-23

    申请号:US51353

    申请日:1998-04-08

    CPC分类号: C09K19/04 C07C22/00 C07C22/08

    摘要: The present invention is to provide liquid crystalline compounds having a wide temperature range of a liquid crystal phase, low viscosity, and large ratio of elastic constants; liquid crystal compositions comprising the compound; and liquid crystal display devices comprising the composition; the liquid crystalline compounds being fluoroalkenyl derivatives expressed by the general formula (1) ##STR1## wherein A.sub.1, A.sub.2, A.sub.3, and A.sub.4 independently represent trans-1,4-cyclohexylene group or 1,4-phenylene group; Z.sub.1, Z.sub.2, and Z.sub.3 independently represent --(CH.sub.2).sub.2 --, --CH.dbd.CH--, --C.ident.C--, or a single bond; Q represents H or F; l is an integer of 1 to 5; m, n, and o are independently an integer of 0 to 5; p and q are independently an integer of 0 or 1; and each element which constitutes the derivatives may be an isotope of the element.

    摘要翻译: PCT No.PCT / JP96 / 02950 Sec。 371日期:1998年4月8日 102(e)1998年4月8日PCT PCT 1996年10月11日PCT公布。 出版物WO97 / 13738 日期1997年04月17日本发明提供具有液晶相的宽温度范围的液晶化合物,粘度低,弹性常数比大; 包含该化合物的液晶组合物; 和包含该组合物的液晶显示装置; 由通式(1)表示的氟烯基衍生物的液晶化合物,其中A1,A2,A3和A4独立地表示反式-1,4-亚环己基或1,4-亚苯基; Z 1,Z 2和Z 3独立地表示 - (CH 2)2 - , - CH = CH - , - C = C-或单键; Q表示H或F; l为1〜5的整数, m,n和o分别为0〜5的整数。 p和q独立地为0或1的整数; 并且构成衍生物的每个元素可以是元素的同位素。

    Liquid crystalline alkenylcyclohexene derivative, liquid crystal
composition and liquid crystal display element
    12.
    发明授权
    Liquid crystalline alkenylcyclohexene derivative, liquid crystal composition and liquid crystal display element 失效
    液晶烯基环己烯衍生物,液晶组合物和液晶显示元件

    公开(公告)号:US5698136A

    公开(公告)日:1997-12-16

    申请号:US605775

    申请日:1996-02-22

    摘要: A novel liquid crystalline compound having a high elastic constant ratio, K.sub.33 /K.sub.11, a superior compatibility with other liquid crystal compounds, particularly a low temperature compatibility therewith, and chemical stability; a liquid crystal composition containing such a liquid crystalline compound; and a liquid crystal display element, are provided, which liquid crystalline compound is expressed by the formula (1) ##STR1## wherein R.sub.1 is an alkyl group or an alkyloxy group of 1 to 10C or a halogenated alkyl group, a halogenated alkyloxy group of 1 to 4C, halogen atom or cyano group; R.sub.2 is H atom or an alkyl group of 1 to 3C; rings A and B each independently are 1,4-phenylene ring or trans-1,4-cyclohexylene group, which may be substituted by halogen atom; Z is single bond, 1,4-phenylene ring, trans-1,4-cyclohexylene ring or 1,2-ethylene group; p is 2 to 4; and q is 0 or 1.

    摘要翻译: 具有高弹性常数比的新型液晶化合物K33 / K11,与其它液晶化合物的优异相容性,特别是与其低温相容性,以及化学稳定性; 含有这种液晶化合物的液晶组合物; 和液晶显示元件,其中液晶化合物由式(1)表示:其中R 1是1至10的烷基或烷氧基或卤代烷基,卤代 1〜4的烷氧基,卤原子或氰基; R2是H原子或1〜3的烷基; 环A和B各自独立地为可被卤素原子取代的1,4-亚苯基环或反式-1,4-亚环己基; Z是单键,1,4-亚苯基环,反-1,4-亚环己基环或1,2-亚乙基; p为2〜4; q为0或1。

    Liquid-crystal alkenyltolan derivative, liquid-crystal composition, and liquid-crystal display element
    13.
    发明授权
    Liquid-crystal alkenyltolan derivative, liquid-crystal composition, and liquid-crystal display element 有权
    液晶链烯基二苯乙炔衍生物,液晶组合物和液晶显示元件

    公开(公告)号:US06333080B1

    公开(公告)日:2001-12-25

    申请号:US09242554

    申请日:1999-05-06

    IPC分类号: C09K1934

    摘要: A liquid crystalline alkenyltolan derivative expressed by the general formula CtH2t−1—G—(CH2)m—A1—B1—(A2—B2)n—(A3—B3)p—A4—X wherein A1, A2, A3, and A4 independently represent a 1,4-cyclohexylene, 1,4-phenylene in which one or two hydrogen atoms may be replaced by a fluorine atom(s), dioxane-2,5-diyl, or pyrimidine-2,5-diyl group; B1, B2, and B3 independently represent a covalent bond, an 1,2-ethylene, 1,2-ethenylene, 1,2-ethynylene, oxymethylene, methylenoxy, carbonyloxy, or 1,4-butylene group provided that at least one of B1, B2, and B3 represents an 1,2-ethynylene group; G represents a covalent bond or an oxygen atom; CtH2t−1 represents an alkenyl group having t carbon atoms; n and p are each 0 or 1; and X represents an alkyl group having 1 to 10 carbon atoms. The derivative provides a liquid-crystal compound and a liquid-crystal composition which have high anisotropy, high elastic constant ratio, excellent comparability with other liquid-crystal compounds, and low viscosity and are chemically and physically stable.

    摘要翻译: 由通式为Al,A2,A3和A4表示的液晶链烯基二苯乙烯衍生物独立地表示其中一个或两个氢原子可被氟原子取代的1,4-亚环己基,1,4-亚苯基, 二恶烷-2,5-二基或嘧啶-2,5-二基; B1,B2和B3独立地表示共价键,1,2-亚乙基,1,2-亚乙烯基,1,2-亚乙炔基,甲醛亚甲基,亚甲氧基,羰氧基或1,4-亚丁基,条件是至少一个 B1,B2和B3表示1,2-亚乙炔基; G表示共价键或氧原子; CtH2t-1表示具有t个碳原子的烯基; n和p各自为0或1; X表示碳原子数1〜10的烷基。 该衍生物提供了具有高各向异性,高弹性常数比,与其它液晶化合物优异可比性和低粘度并且化学和物理稳定的液晶组合物和液晶组合物。