Acetylene derivatives, and liquid crystal composition and liquid crystal display device each comprising the same
    61.
    发明授权
    Acetylene derivatives, and liquid crystal composition and liquid crystal display device each comprising the same 有权
    乙炔衍生物,液晶组合物和液晶显示装置

    公开(公告)号:US06168728A

    公开(公告)日:2001-01-02

    申请号:US09380875

    申请日:1999-09-10

    IPC分类号: C09K1906

    摘要: The present invention provides new liquid crystalline compounds having a high optical anisotropy value and excellent compatibility with the other liquid crystals, and liquid crystal composition comprising the compounds. The liquid crystalline compounds are represented by the general formula (1): wherein H1, H2, H3, H4, H5, H6, H7, H8, H9, H10, H11 and H12, each independently, represent H, F or Cl, at least one of H1, H2, H3, H4, H9, H10, H11 and H12 is F or Cl, R1 represents an alkyl group of C1-20, in which methylene groups may be replaced by —O—, —S—, —Si—, —CH═CH— or —C≡C—, any hydrogen atoms may be replaced by a halogen atom, and Y1 is replaced by R1, F, Cl, Br, I or a cyano group.

    摘要翻译: 本发明提供了具有高光学各向异性值和与其它液晶的相容性优异的新型液晶化合物和包含该化合物的液晶组合物。液晶化合物由通式(1)表示:其中H1,H2, H3,H4,H5,H6,H7,H8,H9,H10,H11和H12各自独立地表示H,F或Cl,H1,H2,H3,H4,H9,H10,H11和H12中的至少一个为 F或Cl,R1表示C1-20的烷基,其中亚甲基可以被-O - , - S - , - Si-, - CH = CH-或-C = C-代替,任何氢原子 被卤素原子代替,Y1被R1,F,Cl,Br,I或氰基代替。

    Fluoro-substituted alkyl ether compounds, liquid crystal compositions
and liquid crystal display devices
    63.
    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。

    Tercyclohexane, liquid-crystalline compound and liquid crystal
composition comprising same
    64.
    发明授权
    Tercyclohexane, liquid-crystalline compound and liquid crystal composition comprising same 失效
    三环己烷,液晶化合物和包含它们的液晶组合物

    公开(公告)号:US6030545A

    公开(公告)日:2000-02-29

    申请号:US663925

    申请日:1996-06-14

    摘要: The present invention provides a liquid-crystalline compound which has a reduced viscosity, a wide liquid crystal temperature range (high clearing point), a high chemical stability (extremely high specific resistance, high voltage holding ratio) and a high solubility with other liquid-crystalline compound(s) and preferably has a proper refractive index anisotropy. The present invention also provides a liquid crystal composition having excellent properties. The liquid-crystalline compound is represented by the following general formula (1): wherein R and R' each independently represents a C.sub.1-20 alkyl or halogenated alkyl group or a group obtained by replacing one or more --CH.sub.2 -- groups in the alkyl group by any of --O--, --S--, --CH.dbd.CH-- or --C.tbd.C--, provided that two or more --CH.sub.2 -- groups are not consecutively replaced by either --O-- or --S--; and Z.sub.1 and Z.sub.2 each independently represents a covalent bond or 1,2-ethylene group, provided that when both Z.sub.1 and Z.sub.2 are a covalent bond, R and R' are not straight-chain alkyl groups each having the same chain length.

    摘要翻译: 本发明提供一种液晶性化合物,其具有比较低的粘度,宽的液晶温度范围(高透明度),高化学稳定性(高电阻率,高电压保持率)和与其它液体 - 结晶化合物,并且优选具有适当的折射率各向异性。 本发明还提供具有优异性能的液晶组合物。 液晶化合物由以下通式(1)表示:其中R和R'各自独立地表示C1-20烷基或卤代烷基或通过置换烷基中的一个或多个-CH 2 - 基团而获得的基团 通过-O - , - S - , - CH = CH-或-CB 3 C - 中的任何基团,条件是两个或更多个-CH 2 - 基团不被-O-或-S-连续替代; 并且Z 1和Z 2各自独立地表示共价键或1,2-亚乙基,条件是当Z1和Z2均为共价键时,R和R'不是具有相同链长的直链烷基。

    Liquid crystalline compound replaced by fluorine containing group,
liquid crystal composition, and liquid crystal display device
    67.
    发明授权
    Liquid crystalline compound replaced by fluorine containing group, liquid crystal composition, and liquid crystal display device 失效
    由含氟基团,液晶组合物和液晶显示装置取代的液晶化合物

    公开(公告)号:US6013198A

    公开(公告)日:2000-01-11

    申请号:US921799

    申请日:1997-09-02

    摘要: Liquid crystalline compounds are disclosed which compounds are expressed by general formula (1) ##STR1## wherein R.sub.1 represents an alkyl group having 1 to 10 carbon atoms, ring A represents 1,4-phenylene or 1,4-cyclohexylene, each of X.sub.1, X.sub.2, X.sub.3, and X.sub.4 independently represents hydrogen atom or fluorine atom, Y.sub.1 represents CF.sub.3 or OCF.sub.3, and each of m, n, and p is independently an integer of 1 or 0. The liquid crystalline compounds have a wide temperature. The liquid crystalline compounds have a wide temperature range of nematic phase, low viscosity, large positive .DELTA..epsilon., high chemical stability, high miscibility with other liquid crystalline compounds at low temperatures, small temperature dependency of viscosity and .DELTA..epsilon., extremely high specific resistance (high voltage holding ratio), and good UV stability, and are preferably used for TFT. Also, disclosed are liquid crystal compositions containing the liquid crystalline compounds mentioned above, and liquid crystal display devices using the liquid crystal composition.

    摘要翻译: 公开了液晶化合物,其中化合物由通式(1)表示,其中R 1表示具有1-10个碳原子的烷基,环A表示1,4-亚苯基或1,4-亚环己基,各自为X1,X2,X3 X 4独立地表示氢原子或氟原子,Y1表示CF 3或OCF 3,m,n和p各自独立地为1或0的整数。液晶化合物的温度宽。 液晶化合物具有宽的向列相温度范围,低粘度,大的正DELTAε,高化学稳定性,低温下与其它液晶化合物的高混溶性,粘度和DELTAε的温度依赖性低,电阻率极高( 高电压保持率),良好的紫外线稳定性,优选用于TFT。 此外,还公开了含有上述液晶化合物的液晶组合物和使用该液晶组合物的液晶显示装置。