DICYCLOHEXYLETHYLENE DERIVATIVE
    1.
    发明授权
    DICYCLOHEXYLETHYLENE DERIVATIVE 失效
    二环己基乙烯衍生物

    公开(公告)号:EP0688754B1

    公开(公告)日:1998-10-07

    申请号:EP94909299.3

    申请日:1994-03-10

    IPC分类号: C07C25/18 C09K19/30

    摘要: To provide a liquid crystal compound, a dicyclohexylethylene derivative, which has a wide liquid crystal phase temperaturerange, a low viscosity, a large Δ⊂ value, a high stability, and an excellent compatibility with other liquid crystal compounds. A dicyclohexylethylene derivative represented by general formula (I), wherein R represents C1-C10 linear alkyl; and X represents fluorine or trifluoromethyl. This compound can widen the working range of a liquid crystal display element because of its high NI point, can improve the response speed of the display element because of its low viscosity, and can lower the voltage for driving the display element because of its high positive Δ⊂ value. Furthermore, it is so stable against changes in environmental factors that it can be used in various liquid crystal display elements of, for example, active matrix drive type using TFT.

    摘要翻译: 提供一种液晶化合物,具有宽的液晶相温度范围,低粘度,大Δε值,高稳定性和与其它液晶化合物的优异相容性的二环己基乙烯衍生物。 由通式(I)表示的二环己基乙烯衍生物,其中R表示C1-C10直链烷基; X代表氟或三氟甲基。 这种化合物由于其NI点高可以扩大液晶显示元件的工作范围,由于其低粘度可以提高显示元件的响应速度,并且由于其高正值可以降低用于驱动显示元件的电压 Δ⊂值。 此外,它对于环境因素的变化如此稳定,以至于它可用于例如使用TFT的有源矩阵驱动型的各种液晶显示元件。

    Vinylenverbindungen und flüssigkristallines Medium
    2.
    发明公开
    Vinylenverbindungen und flüssigkristallines Medium 失效
    Vinylenverbindungen undflüssigkristallines中等

    公开(公告)号:EP0727406A1

    公开(公告)日:1996-08-21

    申请号:EP95118849.9

    申请日:1995-11-30

    申请人: MERCK PATENT GmbH

    摘要: Vinylenverbindungen der Formel I,
    worin
    R, A 1 , Z 1 , X, L 1 , L 2 und m die in Anspruch 1 angegebene Bedeutung haben, eignen sich als Komponenten flüssigkristalliner Medien.

    摘要翻译: 维尼纶 式(I)和(II)的化合物是新的。 R = H,1-15C烷基或烯基(选择性地,具有一个CN或CF 3 gp或至少一个卤素,并且选择与1个或更多个CH 2 gps取代为O,S,1,3-环丁烯, CO,COO,OCO或OCOO,使得O原子不直接连接在一起); A 1 =(a)反式-1,4-亚环己基(Cyc),选择性。 具有1个或更多个不相邻的CH2 gps。 替换为O和/或S,并选择。 substd。 CN或F; (b)1,4-亚苯基(Phe),选择性 1或2 CH gps。 替换为N,并选择。 substd。 CN或F; (c)1,4-亚环己烯基,1,4-双环-1,2,2-亚辛基,哌啶-1,4-二基,萘-2,6-二基或其十氢和1,2,3,4-四氢衍生物。 ; Z 1 = -COO - , - OCO - , - CH 2 O - , - OCH 2 - , - CH 2 CH 2 - , - CH = CH - , - C标识C或单键。 X = CN,OCN,NCS,Cl或卤代的1-7C烷基或烯基, 具有1个或更多个CH 2 gps。 被-O-取代; 如果R =烷基,X不是F或CF 3; L = H或F; m = 0或1.还声称是(i)一个liq。 基于混合物的结晶(LC)培养基。 极地cpds。 具有正介电各向异性, 一个或多个上述新的cpds; (ii)电光LC显示器 (i)中的介质。

    DICYCLOHEXYLETHYLENE DERIVATIVE
    3.
    发明公开
    DICYCLOHEXYLETHYLENE DERIVATIVE 失效
    二环己基乙烯衍生物

    公开(公告)号:EP0688754A1

    公开(公告)日:1995-12-27

    申请号:EP94909299.3

    申请日:1994-03-10

    IPC分类号: C07C25/18 C09K19/30

    摘要: To provide a liquid crystal compound, a dicyclohexylethylene derivative, which has a wide liquid crystal phase temperaturerange, a low viscosity, a large Δε value, a high stability, and an excellent compatibility with other liquid crystal compounds. A dicyclohexylethylene derivative represented by general formula (I), wherein R represents C₁-C₁₀ linear alkyl; and X represents fluorine or trifluoromethyl. This compound can widen the working range of a liquid crystal display element because of its high NI point, can improve the response speed of the display element because of its low viscosity, and can lower the voltage for driving the display element because of its high positive Δε value. Furthermore, it is so stable against changes in environmental factors that it can be used in various liquid crystal display elements of, for example, active matrix drive type using TFT.

    摘要翻译: 提供一种液晶化合物,具有宽的液晶相温度范围,低粘度,大Δε值,高稳定性和与其他液晶化合物的优异相容性的二环己基乙烯衍生物。 由通式(Ⅰ)表示的二环己基乙烯衍生物,其中R代表C 1 -C 10直链烷基; X代表氟或三氟甲基。 这种化合物由于其NI点高可以扩大液晶显示元件的工作范围,由于其低粘度可以提高显示元件的响应速度,并且由于其高正值可以降低用于驱动显示元件的电压 Δε值。 此外,它对于环境因素的变化如此稳定,以至于它可用于例如使用TFT的有源矩阵驱动型的各种液晶显示元件。

    Cyclohexane derivative
    4.
    发明公开
    Cyclohexane derivative 失效
    Cyclohexanderivat。

    公开(公告)号:EP0647696A1

    公开(公告)日:1995-04-12

    申请号:EP93116355.4

    申请日:1993-10-08

    摘要: A novel liquid crystal material having an alkenyl group at the end of the molecule, and having a low viscosity, and when the compound is added, being able to reduce the threshold voltage of the resulting display element, is provided, the compound being expressed by the formula (I),

    wherein X is a F atom, a trifluoromethyl group, a trifluoromethoxy group or a difluoromethoxy group, -A- is 1,4-cyclohexylene or 1,4-phenylene, -B- is 1,4-cyclohexylene, l is 0, 1 or 2, m is 0, 1 or 2, l+m≧1, Z is -CH₂CH₂- or single bond, n is an integer of 0 to 4, R is a H atom or a linear or branched alkyl group of 1-7C, and when R is an alkyl group, the double bond has a trans-configuration. The compounds of the present invention are suitable as liquid crystal material for STN display element, and further is chemically stable; hence it is possible to prepare a composition having a superior multiplex characteristic and capable of effecting a low voltage drive.

    摘要翻译: 一种在分子末端具有烯基并具有低粘度的新型液晶材料,并且当添加化合物时能够降低所得显示元件的阈值电压,化合物由 式(I),其中X是F原子,三氟甲基,三氟甲氧基或二氟甲氧基,-A-是1,4-亚环己基或1,4-亚苯基,-B-是1, 4-亚环己基,l为0,1或2,m为0,1或2,1,m + 1,Z为-CH 2 CH 2 - 或单键,n为0〜4的整数,R为H 原子或1-7C的直链或支链烷基,当R为烷基时,双键具有反式构型。 本发明的化合物适用于STN显示元件的液晶材料,并且化学稳定; 因此可以制备具有优异的多重特性并能够进行低电压驱动的组合物。