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120 条记录 (耗时 0.033 秒)

    Fluoro-substituted alkenyl compounds, liquid crystal compositions, and liquid crystal display elements
    11.
    发明授权
    Fluoro-substituted alkenyl compounds, liquid crystal compositions, and liquid crystal display elements 失效
    氟取代的烯基化合物，液晶组合物和液晶显示元件

    公开(公告)号：US06599590B2

    公开(公告)日：2003-07-29

    申请号：US09861554

    申请日：2001-05-22

    申请人： Yasuhiro Haseba ,  Shuichi Matsui ,  Hiroyuki Takeuchi ,  Yasuhiro Kubo ,  Etsuo Nakagawa

    发明人： Yasuhiro Haseba ,  Shuichi Matsui ,  Hiroyuki Takeuchi ,  Yasuhiro Kubo ,  Etsuo Nakagawa

    IPC分类号： C09K1930

    CPC分类号： C09K19/42 ,  C07C255/50 ,  C07C2601/14 ,  C07D319/06 ,  C09K19/0403 ,  C09K19/12 ,  C09K19/2014 ,  C09K19/3003 ,  C09K19/3402 ,  C09K19/44 ,  C09K19/46 ,  C09K2019/0444 ,  C09K2019/0448 ,  C09K2019/0451 ,  C09K2019/3422 ,  Y10T428/10

    摘要： The invention relates to a fluoro-substituted alkenyl compound represented by formula (1) wherein Y1, Y2, Y3 and Y4 are each independently H or F, provided that at least one of Y1 and Y2 is F; Q1 is a single bond or an alkylene group of 1-20 carbon atoms, at least one —CH2— being optionally substituted by —O—, provided that two or more —O— are not adjacent to each other; Q2 is a single bond or —C≡C—; Rings A1, A2 and A3 are each independently a cyclohexane ring, a dioxane ring, a cyclohexene ring, a pyrimidine ring, a pyridine ring, or a benzene ring, or a benzene ring having at least one hydrogen atom substituted by F; Z1, Z2 and Z3 are each independently a single bond, —CH2CH2—, —CH2O—, —OCH2—, —COO—, —OCO—, —CH═CH—, —C≡C—, —CF2O—, or —OCF2; and m and n are each independently 0 or 1; provided that Y3 is F when Ring A3 is a cyclohexane ring and Z3 is a single bond. The liquid crystal composition comprising the compound, when used in liquid crystal display elements for various modes, excels in driving voltage and contrast.

    摘要翻译： 本发明涉及由式（1）表示的氟取代烯基化合物，其中Y 1，Y 2，Y 3和Y 4各自独立地为H或F，条件是Y 1和Y 2中的至少一个为F; Q1是单键或1-20个碳原子的亚烷基，至少一个-CH2-任选被-O-取代，条件是两个或更多个-O-彼此不相邻; Q2是单键或-C = C-; 环A1，A2和A3各自独立地为环己烷环，二恶烷环，环己烯环，嘧啶环，吡啶环或苯环，或具有至少一个被F取代的氢原子的苯环; Z 1，Z 2和Z 3各自独立地为单键，-CH 2 CH 2 - ， - CH 2 O - ， - OCH 2 - ， - COO - ， - OCO-， - CH = CH - ， - C≡C-，-CF 2 O- OCF2; m和n各自独立地为0或1; 条件是当环A3为环己烷环且Z 3为单键时，Y 3为F。 当用于各种模式的液晶显示元件时，包含该化合物的液晶组合物在驱动电压和对比度方面优异。

    2,3-difluorophenyl derivative having negative dielectric anisotropy, liquid crystal composition, and liquid crystal display device
    12.
    发明授权
    2,3-difluorophenyl derivative having negative dielectric anisotropy, liquid crystal composition, and liquid crystal display device 失效
    具有负介电各向异性的2,3-二氟苯基衍生物，液晶组合物和液晶显示装置

    公开(公告)号：US06548126B1

    公开(公告)日：2003-04-15

    申请号：US09635846

    申请日：2000-08-11

    申请人： Yasuyuki Sasada ,  Shuichi Matsui ,  Hiroyuki Takeuchi ,  Yasuhiro Kubo ,  Etsuo Nakagawa

    发明人： Yasuyuki Sasada ,  Shuichi Matsui ,  Hiroyuki Takeuchi ,  Yasuhiro Kubo ,  Etsuo Nakagawa

    IPC分类号： C09K1930

    CPC分类号： C09K19/3001 ,  C09K19/04 ,  C09K19/30 ,  C09K19/3066 ,  C09K19/3098 ,  C09K19/42 ,  C09K19/44 ,  C09K19/46 ,  C09K2019/0448 ,  C09K2019/0451 ,  C09K2019/3027 ,  Y10T428/10

    摘要： The invention is to provide liquid crystalline compounds having a negative and extremely large dielectric anisotropy value and a small optical anisotropy value at the same time; liquid crystal compositions comprising the compound; and liquid crystal display devices fabricated by using the liquid crystal composition; the liquid crystalline compounds have 2,3-dihalogenophenylene moiety and are expressed by formula (1) wherein Ra and Rb each independently represents a linear or branched alkyl having 1 to 10 carbon, any methylene in the alkyl may be replaced by —O—, —S—, —CH═CH—, or —C≡C—, but —O— is not successive, and any hydrogen in the alkyl may be replaced by halogen; rings A1 to A4 each independently represents trans-1,4-cyclohexylene, cyclohexene-1,4-diyl, pyridine-1,4-diyl, pyrimidine-2,5-diyl, or 1,4-phenylene, wherein at least one hydrogen in these rings may be replaced by halogen, and any nonadjacent methylene in cyclohexane ring may be replaced by —O—; Y1 and Y2 each independently represents F or Cl; Z1, Z2 and Z3 each independently represents a single bond, —CH2CH2—, —(CH2)4—, —COO—, —OCO—, —CH2O—, —OCH2—, —CF2O—, or —OCF2—; and l, m and n each independently is 0, 1 or 2, and the sum of l+m+n is 3 and less.

    摘要翻译： 本发明提供同时具有负的和非常大的介电各向异性值和小的光学各向异性值的液晶化合物; 包含该化合物的液晶组合物; 以及使用液晶组合物制造的液晶显示装置; 液晶化合物具有2,3-二卤代亚苯基部分，并且由式（1）表示，其中R a和R b各自独立地表示具有1至10个碳的直链或支链烷基，烷基中的任何亚甲基可以被-O-， -S-，-CH = CH-或-C = C-，但-O-不是连续的，并且烷基中的任何氢可被卤素取代; 环A1至A4各自独立地表示反式-1,4-亚环己基，环己烯-1,4-二基，吡啶-1,4-二基，嘧啶-2,5-二基或1,4-亚苯基，其中至少一个 这些环中的氢可以被卤素取代，环己烷环中的任何不相邻的亚甲基都可以被-O-取代; Y1和Y2各自独立地表示F或Cl; Z 1，Z 2和Z 3各自独立地表示单键，-CH 2 CH 2 - ， - （CH 2）4 - ， - COO - ， - OCO - ， - CH 2 O - ， - OCH 2 - ， - CF 2 O-或-OCF 2 - l，m和n各自独立地为0,1或2，并且l + m + n的和为3以下。

    Terphenyl derivative, liquid-crystal composition, and liquid-crystal display element
    15.
    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

    申请人： Tomoyuki Kondou ,  Shuichi Matsui ,  Kazutoshi Miyazawa ,  Hiroyuki Takeuchi ,  Yasuhiro Kubo ,  Fusayuki Takeshita ,  Etsuo Nakagawa

    发明人： Tomoyuki Kondou ,  Shuichi Matsui ,  Kazutoshi Miyazawa ,  Hiroyuki Takeuchi ,  Yasuhiro Kubo ,  Fusayuki Takeshita ,  Etsuo Nakagawa

    IPC分类号： C09K1912

    CPC分类号： C07C25/18 ,  C07C43/225 ,  C09K19/12 ,  Y10T428/10

    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
    16.
    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

    申请人： Tomoyuki Kondou ,  Shuichi Matsui ,  Kazutoshi Miyazawa ,  Hiroyuki Takeuchi ,  Yasuhiro Kubo ,  Fusayuki Takeshita ,  Etsuo Nakagawa

    发明人： Tomoyuki Kondou ,  Shuichi Matsui ,  Kazutoshi Miyazawa ,  Hiroyuki Takeuchi ,  Yasuhiro Kubo ,  Fusayuki Takeshita ,  Etsuo Nakagawa

    IPC分类号： C09K1912

    CPC分类号： C07C17/12 ,  C07C17/263 ,  C07C17/2635 ,  C07C17/361 ,  C07C25/18 ,  C07C43/174 ,  C07C43/225 ,  C09K19/12 ,  C09K19/14 ,  C09K19/20 ,  C09K2019/124 ,  Y10T428/10 ,  C07C25/13

    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。