STN liquid-crystal display
    62.
    发明授权
    STN liquid-crystal display 有权
    STN液晶显示

    公开(公告)号:US06183821B2

    公开(公告)日:2001-02-06

    申请号:US09200463

    申请日:1998-11-27

    IPC分类号: C09K1934

    摘要: Supertwist liquid-crystal displays (SLCDs) with outstanding properties are obtained if the nematic liquid-crystal mixtures used therein comprise one or more compounds of the formula IA and one or more compounds of the formula IB Ra is alkyl, alkoxy, alkenyl or alkenyloxy having 1 to 12 carbon atoms, Rb is alkyl or alkoxy having 1 to 5 carbon atoms, Z is —COO —CH2CH2— or a single bond, and  are each, independently of one another,  and one of the rings  may alternatively be R3 is an alkenyl group having 2 to 7 carbon atoms, R4 is as defined for Ra in the formula IA, and c is 0 or 1.

    摘要翻译: 如果其中使用的向列型液晶混合物包含一种或多种式IA化合物,并且一种或多种式IBRa的化合物是具有1至6个碳原子的烷基,烷氧基,链烯基或烯氧基,则获得具有突出特性的超扭曲液晶显示器(SLCD) 12个碳原子,R b是具有1至5个碳原子的烷基或烷氧基,Z是-COO -CH 2 CH 2 - 或单键,并且各自彼此独立地,并且一个环可以是R 3是具有 2至7个碳原子,R 4如式IA中的R a所定义,并且c为0或1。

    Liquid crystalline medium
    69.
    发明申请
    Liquid crystalline medium 有权
    液晶介质

    公开(公告)号:US20060204674A1

    公开(公告)日:2006-09-14

    申请号:US10566997

    申请日:2004-08-02

    IPC分类号: C09K19/30 C09K19/12 C09K19/20

    摘要: The invention relates to a liquid-crystalline medium based on a mixture of polar compounds of positive dielectric anisotropy, characterised in that it comprises one or more compounds of the formula I and one or more compounds of the formula IA in which R1, R2 ring A, ring B, L1-4, Z1, Z2, X1, X2 and a are as defined in claim 1, where the proportion of the compounds of the formula I in the medium is at least 18% by weight.

    摘要翻译: 本发明涉及一种基于正介电各向异性的极性化合物的混合物的液晶介质,其特征在于其包含一种或多种式I化合物和一种或多种式IA化合物,其中R 1 R 2环A,环B,L 1-4,Z 1,Z 2,..., >,X 1,X 2和a如权利要求1所定义,其中式I化合物在培养基中的比例为至少18重量% 。