Substituted benzene derivative, liquid crystal composition, and liquid crystal display element
    3.
    发明授权
    Substituted benzene derivative, liquid crystal composition, and liquid crystal display element 有权
    取代苯衍生物,液晶组合物和液晶显示元件

    公开(公告)号:US06579577B2

    公开(公告)日:2003-06-17

    申请号:US09917271

    申请日:2001-07-30

    IPC分类号: C09K1912

    摘要: There is provided a liquid crystalline compound having a high voltage holding ratio which has a very small degree of temperature dependence, a low threshold voltage which has a very small degree of temperature dependence, a high &Dgr;n, and excellent miscibility with other liquid crystal materials at low temperature; a liquid crystal composition; and a liquid crystal display element, and the liquid crystalline compound is a substituted benzene derivative represented by general formula (1), where, R represents a straight chain or branched alkyl group having 1 to 20 carbon atoms in which each of optional and nonadjacent methylene groups (—CH2—) may be substituted by an oxygen atom; X represents a halogen atom, —CF3, —CF2H, —CFH2, —OCF3 or —OCF2H; each of Z1 and Z2 independently represents —(CH2)2—, —(CH2)4—, —CH2O—, —OCH2— or a covalent bond, but Z1 and Z2 are not covalent bonds simultaneously; each of Y1, Y2, Y3, Y4, Y5, and Y6 independently represents H or F, but at least one of Y1, Y2, Y3, and Y4 represents F.

    摘要翻译: 提供了具有非常小的温度依赖性的高电压保持率的液晶化合物,具有非常小的温度依赖性的低阈值电压,高DELTAn和与其它液晶材料的优异的混溶性 低温; 液晶组合物; 和液晶显示元件,液晶化合物是通式(1)表示的取代苯衍生物,其中,R表示碳原子数1〜20的直链或支链烷基,其中任选的和不相邻的亚甲基 基团(-CH 2 - )可以被氧原子取代; X表示卤素原子,-CF 3,-CF 2 H,-CFH 2,-OCF 3或-OCF 2 H; Z 1和Z 2各自独立地表示 - (CH 2)2 - , - (CH 2)4 - , - CH 2 O-,-OCH 2 - 或共价键,但Z 1和Z 2不同时为共价键; Y1,Y2,Y3,Y4,Y5和Y6各自独立地表示H或F,但Y1,Y2,Y3和Y4中的至少一个表示F.

    Terphenyl derivative, liquid crystal composition and liquid crystal display device
    4.
    发明授权
    Terphenyl derivative, liquid crystal composition and liquid crystal display device 有权
    三联苯衍生物,液晶组合物和液晶显示装置

    公开(公告)号:US06596349B2

    公开(公告)日:2003-07-22

    申请号:US09836315

    申请日:2001-04-18

    IPC分类号: C09K1912

    摘要: The present invention provides liquid crystalline compounds having a high voltage holding ratio and a low threshold voltage, little variation of these properties with temperature change, high &Dgr;n, and good compatibility with other liquid crystal materials particularly under a low temperature; liquid crystal compositions containing these crystalline compounds; and liquid crystal display devices made using these liquid crystal compositions. The liquid crystalline compounds are terphenyl derivatives represented by general formula (1): wherein R represents a straight or branched alkyl group of 1-20 carbon atoms, and any methylene groups (—CH2—) not adjacent each other in each alkyl group may be replaced by oxygen atoms; X is a halogen atom, —OCF3, —OCF2H, —CF3, —CF2H or —CFH2; Y1, Y2, Y3, Y4, Y5 and Y6 independently represents H or F, but at least two of Y1, Y2, Y3 and Y4 represent F; and any atom constituting these compounds may be substituted by its isotope.

    摘要翻译: 本发明提供具有高电压保持率和低阈值电压的液晶化合物,这些性质与温度变化的变化小,DELTAn高,与其他液晶材料的相容性特别好,在低温下; 含有这些结晶化合物的液晶组合物; 以及使用这些液晶组合物制成的液晶显示装置。 液晶化合物是由通式(1)表示的三联苯衍生物:其中R表示1-20个碳原子的直链或支链烷基,每个烷基中不相邻的任何亚甲基(-CH 2 - )可以是 被氧原子取代; X是卤素原子,-OCF 3,-OCF 2 H,-CF 3,-CF 2 H或-CFH 2; Y1,Y2,Y3,Y4,Y5和Y6独立地表示H或F,但Y1,Y2,Y3和Y4中的至少两个表示F; 并且构成这些化合物的任何原子可以被其同位素取代。

    Terphenyl derivative, liquid-crystal composition, and liquid-crystal display element
    6.
    发明授权
    Terphenyl derivative, liquid-crystal composition, and liquid-crystal display element 有权
    三联苯衍生物,液晶组合物和液晶显示元件

    公开(公告)号:US06344247B1

    公开(公告)日:2002-02-05

    申请号:US09269287

    申请日:1999-03-25

    IPC分类号: C09K1912

    摘要: The present invention provides liquid crystalline compounds having a high voltage holding ratio and a low threshold voltage, little variation of these properties depending on temperature change, high &Dgr;n, and good compatibility with other liquid crystal materials particularly under a low temperature; liquid crystal compositions containing these crystalline compounds; and liquid crystal display devices comprising these liquid crystal compositions. The liquid crystalline compounds are terphenyl derivatives represented by general formula (1): wherein R represents a straight or branched alkyl group of 1-20 carbon atoms, and any methylene groups (—CH2—) not adjacent each other in each alkyl group may be replaced by oxygen atoms; X represents halogen atom, —OCF3, —OCF2H, —CF3, —CF2H or —CFH2; Y1, Y2, Y3, Y4, Y5 and Y6 independently represents H or F, but at least two of Y1, Y2, Y3 and Y4 represent F; and any atom constituting these compounds may be substituted by its isotope.

    摘要翻译: 本发明提供了具有高电压保持率和低阈值电压的液晶化合物,这些特性根据温度变化几乎没有变化,高DELTAn,以及与其它液晶材料,特别是在低温下的良好相容性; 含有这些结晶化合物的液晶组合物; 以及包含这些液晶组合物的液晶显示装置。 液晶化合物是由通式(1)表示的三联苯衍生物:其中R表示1-20个碳原子的直链或支链烷基,每个烷基中不相邻的任何亚甲基(-CH 2 - )可以是 被氧原子取代; X表示卤素原子,-OCF 3,-OCF 2 H,-CF 3,-CF 2 H或-CFH 2; Y1,Y2,Y3,Y4,Y5和Y6独立地表示H或F,但Y1,Y2,Y3和Y4中的至少两个表示F; 并且构成这些化合物的任何原子可以被其同位素取代。

    Fluoroalkylated liquid-crystal compounds, liquid-crystal compositions, and liquid-crystal display elements
    7.
    发明授权
    Fluoroalkylated liquid-crystal compounds, liquid-crystal compositions, and liquid-crystal display elements 有权
    氟烷基化液晶化合物,液晶组合物和液晶显示元件

    公开(公告)号:US06254941B1

    公开(公告)日:2001-07-03

    申请号:US09269286

    申请日:1999-03-25

    IPC分类号: C09K1912

    摘要: The present invention provides liquid crystalline compounds having a very high voltage holding ratio, very little variation of these properties depending on temperature, high &Dgr;n, and good compatibility in the other liquid crystal materials particularly under a low temperature, liquid crystal compositions containing these crystalline compounds, and liquid crystal display devices constituted by using the liquid crystal compositions. The liquid crystalline compounds are represented by general formula (1): wherein R represents an alkyl, alkoxy or alkoxyalkyl group of 2-20 carbon atoms, and in each group, any 1-3 hydrogen atoms may be replaced by fluorine atoms; X shows an halogen atom or an alkyl group of 1-20 carbon atoms, any methylene groups (—CH2—) not adjacent each other in the alkyl group may be replaced by oxygen atoms, and any one or more hydrogen atoms in the alkyl group may be replaced by fluorine atoms; Z1, Z2 and Z3, each independently, represents —(CH2)2—, —(CH2)4—, —CH2O—, —OCH2—, —(CH2)3O—, —O(CH2)3— or a covalent bond; Y1-Y16 each independently represent hydrogen atoms or fluorine atoms, but at least two represent fluorine atoms; m represents 0 or 1, and any atom constituting the compound may be replaced by an isotope thereof.

    摘要翻译: 本发明提供了具有非常高的电压保持率的液晶化合物,这些性质随温度变化很小,DELTAn高,在其它液晶材料中特别是在低温下具有良好的相容性,含有这些结晶化合物的液晶组合物 ,以及使用液晶组合物构成的液晶显示装置。 液晶化合物由通式(1)表示:其中R表示2-20个碳原子的烷基,烷氧基或烷氧基烷基,并且在每一组中,任何1-3个氢原子可被氟原子取代; X表示卤素原子或1-20个碳原子的烷基,烷基中不相邻的任何亚甲基(-CH 2 - )可以被氧原子取代,并且烷基中的任何一个或多个氢原子 可以被氟原子取代; Z 2,Z 2和Z 3各自独立地表示 - (CH 2)2 - , - (CH 2)4 - , - CH 2 O - , - OCH 2 - , - (CH 2)3 O-,-O ; Y1-Y16各自独立地表示氢原子或氟原子,但至少两个表示氟原子; m表示0或1,构成化合物的任何原子可以被其同位素代替。

    Fluoro-substituted alkyl ether compounds, liquid crystal compositions
and liquid crystal display devices
    9.
    发明授权
    Fluoro-substituted alkyl ether compounds, liquid crystal compositions and liquid crystal display devices 失效
    氟取代烷基醚化合物,液晶组合物和液晶显示装置

    公开(公告)号:US6124005A

    公开(公告)日:2000-09-26

    申请号:US147387

    申请日:1998-12-14

    摘要: Liquid crystalline compounds which have excellent compatibility with other liquid crystal materials, especially at low temperatures, high voltage holding ratio, low threshold voltage, their small temperature dependency, high .DELTA.n, and broad liquid phase temperature range, the compounds being represented by formula (1)Ra--A.sub.1 --Z.sub.1 --A.sub.2 --Z.sub.2 --(--A.sub.3 --Z.sub.3 --).sub.m --A.sub.0 --Rf (1)(wherein m is 0 or 1; A.sub.0, A.sub.1, A.sub.2 and A.sub.3 represent a six-membered ring, ring A.sub.0 is 1,4-phenylene which may be substituted with 1 to 3 of F and/or Cl, rings A.sub.1, A.sub.2 and A.sub.3, independently of one another, are selected from trans-1,4-cyclohexylene, 1,4-phenylene which may be substituted with one or more halogen atoms, cyclohexene-1,4-diyl or 1,3-dioxane-2,5-diyl; Z.sub.1, Z.sub.2 and Z.sub.3 represent a bridge between the rings and independently of one another, are selected from --(CH.sub.2).sub.2 --, --(CH.sub.2).sub.4 --, --CH.sub.2 O--, --OCH.sub.2 -- bonds, one or more hydrogen atoms in these bonds being optionally substituted with a halogen atom, or a single bond (--); Rf represents --OCF.sub.2 CF.sub.2 H or --OCF.sub.2 CFHCF.sub.3 ; and Ra is a straight- or branched monovalent organic radical of 1 to 20 carbons); liquid crystal compositions comprising at least one of the compounds; and liquid crystal display devices composed of the compositions.

    摘要翻译: PCT No.PCT / JP97 / 01936 Sec。 371 1998年12月14日第 102(e)1998年12月14日日期PCT 1997年6月6日PCT公布。 公开号WO97 / 47576 日期1997年12月18日与其他液晶材料具有优异相容性的液晶化合物,特别是在低温下,高电压保持率,低阈值电压,低温依赖性,高DELTA n和宽液相温度范围,化合物 (1)Ra-A1-Z1-A2-Z2 - ( - A3-Z3-)m-A0-Rf(1)(其中m为0或1; A0,A1,A2和A3表示六 环A0是可被1至3个F和/或Cl取代的1,4-亚苯基,A1,A2和A3环,彼此独立地选自反式-1,4-亚环己基, 可被一个或多个卤素原子取代的1,4-亚苯基,环己烯-1,4-二基或1,3-二恶烷-2,5-二基; Z 1,Z 2和Z 3表示环之间的桥, 另一个选自 - (CH 2)2 - , - (CH 2)4 - , - CH 2 O - , - OCH 2 - 键,这些键中的一个或多个氢原子任选被卤素原子或单键 - ); Rf代表 目的-OCF2CF2H或-OCF2CFHCF3; 和Ra是1至20个碳的直链或支链一价有机基团); 包含至少一种化合物的液晶组合物; 以及由该组合物构成的液晶显示装置。