Ferroelectric liquid crystal composition and liquid crystal device using
the same
    7.
    发明授权
    Ferroelectric liquid crystal composition and liquid crystal device using the same 失效
    铁电液晶组合物和使用其的液晶装置

    公开(公告)号:US5308539A

    公开(公告)日:1994-05-03

    申请号:US822629

    申请日:1992-01-17

    摘要: A ferroelectric liquid crystal composition including: at least one optically active compound of the formula (I): ##STR1## where R.sup.1 and R.sup.2 are, the same or different, a straight or branched chain alkyl group having 1 to 15 carbon atoms, k represents an integer of 0 or 1, and * represents an asymmetric carbon atom; andat least one compound selected from the group consisting of: compounds of the formula (II): ##STR2## where R.sup.3 and R.sup.4 are a straight or branched chain alkyl or alkoxy group having 1-15 carbon atoms, ##STR3## and ##STR4## each represents ##STR5## X represents --O--, --CO-- or a single bond, m and n are independently an integer of 0 or 1; compounds of the formula (III): ##STR6## where R.sup.5 and R.sup.6 are, the same or different, a straight or branched chain alkyl or alkoxy group having 1-15 carbon atoms, and p is an integer of 0 or 1;said ferroelectric liquid crystal composition exhibiting at least nematic phase, smectic A phase and smectic C phase.

    摘要翻译: 一种铁电液晶组合物,其包含:至少一种式(I)的光学活性化合物:其中R 1和R 2相同或不同,具有1至15个碳原子的直链或支链烷基 ,k表示0或1的整数,*表示不对称碳原子; 和选自下列的化合物中的至少一种化合物:式(II)化合物:其中R 3和R 4是具有1-15个碳原子的直链或支链烷基或烷氧基, 和ts -O-,-CO-或单键,m和n独立地为0或1的整数; 式(III)的化合物:其中R 5和R 6相同或不同,具有1-15个碳原子的直链或支链烷基或烷氧基,p是0或1的整数 ; 所述铁电液晶组合物至少显示向列相,近晶A相和近晶相。

    Ferroelectric liquid crystal display
    8.
    发明授权
    Ferroelectric liquid crystal display 失效
    铁电液晶显示屏

    公开(公告)号:US5507975A

    公开(公告)日:1996-04-16

    申请号:US266155

    申请日:1994-06-27

    摘要: A ferroelectric liquid crystal device having a pair of substrates each provided with voltage applying means, an orientation control layer formed on at least one of the substrates, and a layer of ferroelectric liquid crystal composition disposed between the pair of substrates, the ferroelectric liquid crystal composition comprising at least one compound (a) having an optically active group of the formula (I): ##STR1## at least one compound (b) which is reverse to the compound (a) in the direction of a helical pitch induced in a nematic phase and at least one liquid crystal compound (c) exhibiting a smectic C phase, the liquid crystal composition exhibiting at least a smectic C phase, smectic A phase and nematic phase.

    摘要翻译: 一种具有一对基板的铁电液晶装置,每个基板设置有电压施加装置,形成在至少一个基板上的取向控制层以及设置在该对基板之间的铁电液晶组合物层,铁电液晶组合物 包含至少一种具有式(I)的光学活性基团的化合物(a):(I)至少一种与化合物(a)相反的化合物(b)在螺旋桨诱导的方向上 在向列相和至少一种显示近晶相C的液晶化合物(c)中,该液晶组合物至少表现出近晶C相,近晶A相和向列相。

    Liquid crystalline compounds, liquid crystal compositions containing the
same and use thereof
    9.
    发明授权
    Liquid crystalline compounds, liquid crystal compositions containing the same and use thereof 失效
    液晶化合物,含有它们的液晶组合物及其应用

    公开(公告)号:US5338482A

    公开(公告)日:1994-08-16

    申请号:US557777

    申请日:1990-07-26

    摘要: Liquid crystalline compounds having an optically active .gamma.-lactone ring of the general formula (A): ##STR1## wherein R.sup.1 is a group selected from the class consisting of ##STR2## n and e are each independently 0 or 1, R.sup.3 is an alkyl group having 1 to 15 carbon atoms or an alkenyl group having 2 to 15 carbon atoms, said alkyl and alkenyl groups having each optionally one or more asymmetric carbon atoms, X and Y are each hydrogen atom, a halogen atom or a cyano group, R.sup.2 is an alkyl group having 1 to 15 carbon atoms or an alkenyl group having 2 to 15 carbon atoms, said alkyl and alkenyl groups having each optionally one or more asymmetric carbon atoms, and * means an asymmetric carbon atom, a liquid crystal composition Containing the same and an element for opto-electronics devices comprising the liquid crystal composition.

    摘要翻译: 具有通式(A)的光学活性的γ-内酯环的液晶化合物:其中R 1是选自下列的基团:其中R 1是选自下列的基团: 独立地为0或1,R3为具有1至15个碳原子的烷基或具有2至15个碳原子的烯基,所述烷基和烯基各自为一个或多个不对称碳原子,X和Y各自为氢原子, 卤素原子或氰基,R 2为碳原子数为1〜15的烷基或碳原子数为2〜15的烯基,所述烷基和烯基各自为一个以上的不对称碳原子,*表示不对称的 碳原子,含有该液晶组合物的液晶组合物和包含液晶组合物的光电子器件的元件。

    Liquid crystalline compounds, liquid crystal compositions containing the
same and use thereof
    10.
    发明授权
    Liquid crystalline compounds, liquid crystal compositions containing the same and use thereof 失效
    液晶化合物,含有它们的液晶组合物及其应用

    公开(公告)号:US5395553A

    公开(公告)日:1995-03-07

    申请号:US180380

    申请日:1994-01-12

    摘要: Liquid crystalline compounds having an optically active .gamma.-lactone ring of the general formula (A): ##STR1## wherein R.sup.1 is a group selected from the class consisting of ##STR2## n and e are each independently 0 or 1, R.sup.3 is an alkyl group having 1 to 15 carbon atoms or an alkenyl group having 2 to 15 carbon atoms, said alkyl and alkenyl groups having each optionally one or more asymmetric carbon atoms, X and Y are each hydrogen atom, a halogen atom or a cyano group, R.sup.2 is an alkyl group having 1 to 15 carbon atoms or an alkenyl group having 2 to 15 carbon atoms, said alkyl and alkenyl groups having each optionally one or more asymmetric carbon atoms, and * means an asymmetric carbon atom, a liquid crystal composition containing the same and an element for opto-electronics devices comprising the liquid crystal composition.

    摘要翻译: 具有通式(A)的光学活性的γ-内酯环的液晶化合物:其中R 1是选自下列的基团:其中R 1是选自下列的基团: 独立地为0或1,R3为具有1至15个碳原子的烷基或具有2至15个碳原子的烯基,所述烷基和烯基各自为一个或多个不对称碳原子,X和Y各自为氢原子, 卤原子或氰基,R 2为碳原子数为1〜15的烷基或碳原子数为2〜15的烯基,所述烷基和链烯基各自为一个以上不对称碳原子,*表示不对称的 碳原子,含有该碳原子的液晶组合物和包含该液晶组合物的光电子器件的元件。