ALKENYL COMPOUNDS, LIQUID CRYSTAL COMPOSITIONS, AND LIQUID CRYSTAL DISPLAY DEVICES
    1.
    发明公开
    ALKENYL COMPOUNDS, LIQUID CRYSTAL COMPOSITIONS, AND LIQUID CRYSTAL DISPLAY DEVICES 失效
    ALKENYLZUSAMMENSETZUNGEN,FLÜSSIGKRISTALLZUSAMMENSETZUNGENUNDFLÜSSIGKRISTALLANZEIGEVORRICHTUNGEN

    公开(公告)号:EP0893421A1

    公开(公告)日:1999-01-27

    申请号:EP97908522.2

    申请日:1997-03-27

    摘要: Liquid crystalline compounds having a wide temperature range of liquid crystal phase, low viscosity, chemical stability, and excellent mutual solubility with other liquid crystal materials; liquid crystal compositions comprising the liquid crystalline compound; and liquid crystal display devices comprising the liquid crystal composition are provided;
       the liquid crystalline compound is expressed by the general formula (1)

            Ra-A 1 -Z 1 -A 2 -Z 2 -A 3 -Z 3 -A 4 -Rb     (1)

    wherein Ra represents an alkenyl group having 2 to 20 carbon atoms or an alkyl group having 1 to 20 carbon atoms any methylene group (-CH 2 -) in the alkenylene or alkyl group may be replaced by -O-, -S-, -CO-, -CH=CH-, or -C≡C-, but in no case -O- and/or -S- continues, and any hydrogen atom in Ra may be replaced by a halogen atom; Rb represents Ra, a halogen atom, or cyano group provided that at least one of Ra and Rb represents a group having double bond; A 1 , A 2 , A 3 , and A 4 independently represent trans-1,4-cyclohexylene group, 1,4-phenylene group any hydrogen atom on the ring may be replaced by fluorine atom or cyano group, cyclohexenediyl group, pyridine-2,5-diyl group, pyrimidine-2,5-diyl group, or 1,3-dioxane-2,5-diyl group; and Z 1 , Z 2 , and Z 3 independently represent an alkenylene group having 2 to 4 carbon atoms, -(CH 2 ) 2 -, -COO-, -OCO-, -C≡C-, -CH 2 O-, -OCH 2 -, or single bond any hydrogen atom in the groups may be replaced by a halogen atom provided that at least one of Z 1 , Z 2 , and Z 3 represents an alkenylene group having 2 to 4 carbon atoms.

    摘要翻译: 具有液晶相温度范围宽,粘度低,化学稳定性好,与其他液晶材料互溶性好的液晶化合物; 包含液晶化合物的液晶组合物; 并且提供包括液晶组合物的液晶显示装置; 液晶化合物由通式(1)Ra-A1-Z1-A2-Z2-A3-Z3-A4-Rb表示,其中Ra表示碳原子数2〜20的烯基或具有1〜20的烷基 碳原子亚烯基或烷基中的任何亚甲基(-CH 2 - )可以被-O - , - S - , - CO - , - CH = CH-或-C-取代的C-取代,但是在任何情况下 - O-和/或-S-继续,Ra中的任何氢原子可被卤素原子取代; Rb表示Ra,卤素原子或氰基,Ra和Rb中的至少一个表示具有双键的基团; A1,A2,A3和A4独立地表示反式-1,4-亚环己基,1,4-亚苯基,环上的任何氢原子可以被氟原子或氰基取代,环己烯二基,吡啶-2,5- 二基,嘧啶-2,5-二基或1,3-二恶烷-2,5-二基; 并且Z 1,Z 2和Z 3独立地表示具有2至4个碳原子的亚烯基, - (CH 2)2 - , - COO - , - OCO - , - C≡N- 键中的任何氢原子可以被卤素原子替代,条件是Z1,Z2和Z3中的至少一个表示具有2至4个碳原子的亚烯基。

    Cis-1,4-substituted 2-butene derivative
    3.
    发明公开
    Cis-1,4-substituted 2-butene derivative 失效
    1,4-取代物Abkömmlingvon cis-2-Buten。

    公开(公告)号:EP0563981A2

    公开(公告)日:1993-10-06

    申请号:EP93105491.0

    申请日:1993-04-02

    IPC分类号: C09K19/30 C07C15/50 C07C25/24

    摘要: A novel liquid crystal compound having an intermediate group of a cis-1,4-substituted 2-butenyl group, low viscosity and a broad mesomorphic temperature range is provided, which compound is expressed by the following formula:

    wherein R 1 represents an alkyl group of 1 to 10 carbon atoms; n represents 1 or 2, X represents a hydrogen atom, an alkyl group, a halogen atom, a cyano group, an alkoxy group, a methyl group substituted by 1 to 3 halogen atom(s) or a trihaloalkoxy group, Y and Y' each independently represents a hydrogen atom, a halogen atom.

    摘要翻译: 提供了具有顺式-1,4-取代-2-丁烯基中间体的新型液晶化合物,具有低粘度和宽的介晶温度范围,该化合物由下式表示:其中R 1为 >表示1〜10个碳原子的烷基; n表示1或2,X表示氢原子,烷基,卤素原子,氰基,烷氧基,被1〜3个卤素原子或三卤代烷氧基取代的甲基,Y和Y' 各自独立地表示氢原子,卤素原子。