ORGANOSILICON COMPOUNDS, LIQUID-CRYSTAL COMPOSITION, AND LIQUID-CRYSTAL DISPLAY ELEMENT
    4.
    发明公开
    ORGANOSILICON COMPOUNDS, LIQUID-CRYSTAL COMPOSITION, AND LIQUID-CRYSTAL DISPLAY ELEMENT 失效
    有机硅化合物,液晶组成物的液晶显示元件

    公开(公告)号:EP0872484A4

    公开(公告)日:1998-12-23

    申请号:EP96925097

    申请日:1996-07-26

    申请人: CHISSO CORP

    摘要: Oragnosilicon compounds represented by the general formula (1): Ra-A-(-Z1-A1-)-m-(-Z2-A2-)-n-(-Z3-A3-)-o-Rb, excellent in the compatibility with other liquid-crystal materials, reduced in viscosity, and improved in threshold voltage, wherein at least one of Ra, Rb, Z1, Z2 and Z3 has an -SiH2 group; Ra represents hydrogen or C1-C2 alkyl wherein at least one -CH2- group may be substituted by -SiH2-, -O-, -S-, -CO-, -CH=CH-, -CC- or 1,4-cyclobutylene; Rb represents a group of any of the Ra groups, halogeno or CN; A, A1, A2 and A3 represent each a bivalent ring group; Z1, Z2 and Z3 represent each independently a covalent bond or -(CH2)p- wherein at least one -CH2- group may be substituted by -SiH2-, -O-, -S-, -CO-, -CH=CH- or -CC-; p represents an integer of 1 to 4; and m, n and o represent each independently 0 or 1.

    DICYCLOHEXYLETHYLENE DERIVATIVE
    8.
    发明公开
    DICYCLOHEXYLETHYLENE DERIVATIVE 失效
    二环己基乙烯衍生物

    公开(公告)号:EP0688754A4

    公开(公告)日:1996-04-17

    申请号:EP94909299

    申请日:1994-03-10

    申请人: CHISSO CORP

    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。

    LIQUID CRYSTAL COMPOUNDS HAVING FLUORINATED 1,4-PHENYLENE SKELETONS, LIQUID CRYSTAL COMPOSITIONS, AND LIQUID CRYSTAL DISPLAY DEVICES
    10.
    发明公开
    LIQUID CRYSTAL COMPOUNDS HAVING FLUORINATED 1,4-PHENYLENE SKELETONS, LIQUID CRYSTAL COMPOSITIONS, AND LIQUID CRYSTAL DISPLAY DEVICES 失效
    FLUSSIGKRISTALLINE VERBINDUNGEN MIT EINEM 1,4-PHENYLENGRUNDGERUST,FLUSSIGKRISTALLINE ZUSAMMENSETZUNGEN UND FLUSSIGKISTALLINES ANZEELEEMEMENT

    公开(公告)号:EP0891961A4

    公开(公告)日:1999-06-16

    申请号:EP97903621

    申请日:1997-02-27

    申请人: CHISSO CORP

    摘要: Compounds represented by general formula (1), which exhibit nematic liquid crystal phases over widened temperature ranges and are lowered in viscosity and improved in low-temperature compatibility with other liquid crystal compounds and chemical stability as compared with the liquid crystal compounds of the prior art, wherein H1 to H8 are each hydrogen or halogeno, with at least one member of them being halogeno; R1 is C2-C20 alkyl wherein one methylene (-CH2-) group or two or more methylene groups that are not adjacent to each other are replaced by ethereal oxygen (-O-); Y1 is C1-C20 alkyl wherein one or more methylene groups may be replaced by oxygen, sulfur, dihydroxysilyl, dimethylsilylene, -CH=CH-, and/or -CC-; and X1 to X3 are each a covalent bond, 1,2-ethylene or 1,4-butylene.

    摘要翻译: 通式(1)表示的化合物与现有技术的液晶化合物相比,在宽的温度范围内呈现向列型液晶相,粘度降低,与其他液晶化合物的低温相容性和化学稳定性提高 其中H1至H8各自为氢或卤代,其中至少一个为卤代; R1是C2-C20烷基,其中彼此不相邻的一个亚甲基(-CH2-)或两个或更多个亚甲基被醚氧(-O-)代替; Y 1是其中一个或多个亚甲基可被氧,硫,二羟基甲硅烷基,二甲基亚甲硅烷基,-CH = CH-和/或-CC-代替的C 1 -C 20烷基; X1至X3各自为共价键,1,2-亚乙基或1,4-亚丁基。