Liquid crystalline compound having difluoropropyleneoxy group as bonding group, liquid crystal composition and liquid crystal display element
    1.
    发明授权
    Liquid crystalline compound having difluoropropyleneoxy group as bonding group, liquid crystal composition and liquid crystal display element 有权
    具有二氟亚丙氧基作为键合基团的液晶化合物,液晶组合物和液晶显示元件

    公开(公告)号:US06544604B2

    公开(公告)日:2003-04-08

    申请号:US09925484

    申请日:2001-08-10

    IPC分类号: C09K1934

    摘要: The present invention provides a liquid crystalline compound having a difluoropropyleneoxy group as a bonding group, which is represented by Formula (1): wherein R1 and R2 each independently represent hydrogen, halogen, a cyano group or an alkyl group having 1 to 20 carbon atoms; rings A1 to A5 each independently represent a 1,4-cyclohexylene group, a 1,4-cyclohexenylene group or a 1,4-phenylene group; Z1 to Z4 each independently represent a single bond, —CH2CH2—, —CH2O—, —OCH2—, —COO—, —OCO—, —CH═CH—, —C≡C—, —CF2O— or —OCF2—; Y1, Y2, Y3 and Y4 each independently represent hydrogen or fluorine; and k, l, m and n each independently represent 0 or 1. This liquid crystalline compound has a large absolute value (|&Dgr;&egr;|) of a dielectric anisotropy and shows a relatively small refractive anisotropy. The present invention further provides a liquid crystal composition comprising this compound which makes it possible to drive display elements of various modes at a low voltage, and a liquid crystal display element containing this liquid crystal composition.

    摘要翻译: 本发明提供具有二氟亚丙氧基作为键合基团的液晶化合物,其由式(1)表示:其中R 1和R 2各自独立地表示氢,卤素,氰基或具有1至20个碳原子的烷基 ; 环A1至A5各自独立地表示1,4-亚环己基,1,4-亚环己基或1,4-亚苯基; Z 1至Z 4各自独立地表示单键,-CH 2 CH 2 - , - CH 2 O - , - OCH 2 - , - COO - , - OCO-, - CH = CH-,-C = C - , - CF 2 O-或-OCF 2 - Y 1,Y 2,Y 3和Y 4各自独立地表示氢或氟; 并且k,l,m和n各自独立地表示0或1.该液晶化合物的介电各向异性的绝对值(| DELTAepsi |)大,折射率各向异性相对较小。 本发明还提供一种包含该化合物的液晶组合物,其可以驱动低电压的各种模式的显示元件,以及含有该液晶组合物的液晶显示元件。

    Terphenyl derivative, liquid crystal composition and liquid crystal display device
    2.
    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
    4.
    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
    5.
    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。

    Substituted benzene derivative, liquid crystal composition, and liquid crystal display element
    6.
    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.