Liquid-crystalline medium
    74.
    发明授权
    Liquid-crystalline medium 失效
    液晶介质

    公开(公告)号:US06171665B2

    公开(公告)日:2001-01-09

    申请号:US09459875

    申请日:1999-12-14

    IPC分类号: C09K1930

    摘要: The invention relates to a liquid-crystalline medium based on a mixture of polar compounds of positive dielectric anisotropy, containing at least one compound of the general formula I wherein R1-R4 may each, independently of one another, be an alkyl or alkenyl radical having up to 12 carbon atoms which is unsubstituted, monosubstituted by CN or CF3 or at least monosubstituted by halogen, where one or more CH2 groups in these radicals may also, in each case independently of one another, be replaced by —O—, —S—, —CO—, —CO—O—, —O—CO— or —O—CO—O— in such a way that O atoms are not linked directly to one another, and —A— is 1,4-phenylene, in which, in addition, one or two CH groups may be replaced by N, 2,3-difluoro-1,4-phenylene, 2-fluoro-1,4-phenylene, 3-fluoro-1,4-phenylene or a single bond.

    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,其含有至少一种通式I的化合物,其中R 1 -R 4各自可以彼此独立地为具有烷基或烯基的基团 至12个碳原子,其未被取代,被CN或CF 3单取代或至少被卤素单取代,其中这些基团中的一个或多个CH 2基团也可以彼此独立地被-O - , - S- ,-CO-,-CO-O-,-O-CO-或-O-CO-O-,使得O原子彼此不直接相连,-A-是1,4-亚苯基, 此外,一个或两个CH基团可以被N,2,3-二氟-1,4-亚苯基,2-氟-1,4-亚苯基,3-氟-1,4-亚苯基或 单键。

    Electro-optical light modulating element, electro-optical display and modulating medium
    77.
    发明授权
    Electro-optical light modulating element, electro-optical display and modulating medium 有权
    电光调制元件,电光显示和调制介质

    公开(公告)号:US07440160B2

    公开(公告)日:2008-10-21

    申请号:US10535104

    申请日:2003-11-12

    IPC分类号: G02F1/00 C12N1/38

    摘要: The invention relates to electrooptical light modulating elements, to electrooptical displays containing elements of this type, and to display systems, e.g. television screens and computer monitors, and to the modulating media used therein. The inventive light modulating elements contain a mesogenic modulating medium that exists in an optically isotropic phase when the light modulating elements are in operation and, in addition to having a good contrast, a low dependency on the viewing angle and very short switching times, they are particularly characterized by having relatively low driving voltages with a very low dependency on temperature. The inventive modulating media are characterized in that they contain a chiral constituent. They preferably also contain an achiral constituent. Especially preferred, the control media comprise a blue phase.

    摘要翻译: 本发明涉及电光调制元件,电光学显示器,其包含这种类型的元件,以及显示系统。 电视屏幕和计算机监视器,以及其中使用的调制媒体。 本发明的光调制元件包含介晶调制介质,其在光调制元件工作时存在于光学各向同性相中,并且除了具有良好的对比度外,对视角的依赖性低以及非常短的切换时间,它们是 其特征在于具有相对较低的对温度依赖性非常低的驱动电压。 本发明的调节介质的特征在于它们含有手性成分。 它们优选还含有非手性成分。 特别优选的是,控制介质包括蓝相。

    Chiral compounds
    78.
    发明授权
    Chiral compounds 有权
    手性化合物

    公开(公告)号:US07223450B2

    公开(公告)日:2007-05-29

    申请号:US10477896

    申请日:2002-04-25

    摘要: The invention relates to chiral compounds of formula I wherein X1,X2,X1,X2,x1,x2,y1,y2,B,C,U1,U2,V1,V2,W1 and W2 have the meaning given in claim 1, to liquid crystal mixtures comprising at least one chiral compound of formula I, to chiral linear or crosslinked liquid crystal polymers obtainable by polymerizing a polymerizade mixture comprising at least one chiral compound of formula I, to the use of chiral compound of formula I and mixtures and polymers obtained thereof in liquid crystal display, active and passive optical elements, adhesives, synthetic resins with anisotropic mechanical properties, cosmetic and pharmaceutical compositions, diagnostics, liquid crystal pigments, for decorative and security applications, nonlinear optics, optical information storage or as chiral dopants, and to a liquid crystal display comprising a mixture comprising at least one chiral compound of formula I.

    摘要翻译: 本发明涉及式I的手性化合物,其中X 1,X 2,X 1,X 2,X 2, x 1,x 2,y 1,y 2,b,c,u 1, / SUP>,U 2,V 1,V 2,W 1和W 2, 对于通过将包含至少一种式I的手性化合物的聚合物混合物聚合而获得的手性线性或交联的液晶聚合物,可以是包含至少一种式I的手性化合物的液晶混合物, 使用式I的手性化合物及其在液晶显示器中获得的混合物和聚合物,有源和无源光学元件,粘合剂,具有各向异性机械性能的合成树脂,化妆品和药物组合物,诊断,液晶颜料,用于装饰和安全应用 ,非线性光学,光学信息存储或手性掺杂剂,以及包括混合物的液晶显示器 包含至少一种式I的手性化合物。

    Liquid crystalline medium
    79.
    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% 。