Terphenyl derivative, liquid-crystal composition, and liquid-crystal display element
    1.
    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
    2.
    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。

    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。

    Liquid-crystal compounds having large negative value of permittivity anisotropy, liquid-crystal composition, and liquid-crystal display element
    5.
    发明授权
    Liquid-crystal compounds having large negative value of permittivity anisotropy, liquid-crystal composition, and liquid-crystal display element 有权
    具有大的介电常数各向异性负值的液晶化合物,液晶组合物和液晶显示元件

    公开(公告)号:US06348244B1

    公开(公告)日:2002-02-19

    申请号:US09529989

    申请日:2000-04-24

    IPC分类号: C09K1934

    摘要: An object of the present invention is to provide novel liquid crystalline compounds having a negative and extremely large dielectric anisotropy value and a small optical anisotropy value together, to provide liquid crystal compositions comprising the liquid crystalline compound, and to provide liquid crystal display devices fabricated by using the liquid crystal composition; the liquid crystalline compounds have 2,3-difluorophenyl moiety and are expressed by the general formula (1) wherein Ra and Rb each independently represent a straight chain or branched alkyl group having 1 to 10 carbon atoms in which group any methylene group may be replaced by —O—, —CH═CH—, or —C≡C—, but there is not a case wherein —O— continues; ring A1 represents cyclohexane-1,4-diyl not adjacent any methylene group may be replaced by —O—; ring A2 represents 2,3-difluoro-1,4-phenylene in which phenylene hydrogen atoms at 5-position and 6-position may each independently be replaced by fluorine atoms; Z1 and Z2 each independently represent single bond or —CH2CH2—; Xa, Xb, Xc, and Xd each independently represent hydrogen atom, fluorine atom, or chlorine atom, but at least one of Xa, Xb, Xc, and Xd is fluorine atom or chlorine atom and any atom which constitutes the compound may be replaced by its isotope.

    摘要翻译: 本发明的目的是提供一种具有负极大且非常大的介电各向异性值和小的光学各向异性值的新的液晶化合物,以提供包括液晶化合物的液晶组合物,并提供由 使用液晶组合物; 液晶化合物具有2,3-二氟苯基部分,并且由通式(1)表示,其中Ra和Rb各自独立地表示具有1-10个碳原子的直链或支链烷基,其中任何亚甲基可以被取代 通过-O-,-CH = CH-或-C = C-,但不存在-O-继续的情况; 环A1表示不相邻的环己烷-1,4-二基,任何亚甲基都可以被-O-取代; 环A2表示其中5-位和6-位上的亚苯基氢原子各自独立地被氟原子代替的2,3-二氟-1,4-亚苯基; Z 1和Z 2各自独立地表示单键或-CH 2 CH 2 - ; Xa,Xb,Xc和Xd各自独立地表示氢原子,氟原子或氯原子,但Xa,Xb,Xc和Xd中的至少一个为氟原子或氯原子,构成该化合物的任何原子均可被取代 通过其同位素。

    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.