Liquid-crystalline medium
    5.
    发明授权
    Liquid-crystalline medium 失效
    液晶介质

    公开(公告)号:US5328642A

    公开(公告)日:1994-07-12

    申请号:US828947

    申请日:1992-02-11

    IPC分类号: C09K19/30 C09K19/12 G02F1/13

    CPC分类号: C09K19/3003 C09K19/3001

    摘要: The invention relates to a liquid-crystalline medium based on a mixture of polar compounds of positive dielectric anisotropy, characterized in that it contains one or more compounds of the general formula I ##STR1## in which Q is alkylene having up to 5 carbon atoms or a single bond, X is H or F, and R is alkyl, oxaalkyl, fluoroalkyl or alkenyl, in each case having up to 7 carbon atoms.

    摘要翻译: PCT No.PCT / EP91 / 01037 371日期:1992年2月11日 102(e)日期1992年2月11日PCT Filed 1991年6月5日PCT公布。 WO91 / 19772 PCT公开号 日本1991年12月26日。本发明涉及基于正介电各向异性的极性化合物的混合物的液晶介质,其特征在于其含有一种或多种通式I的化合物,其中Q为 具有至多5个碳原子或单键的亚烷基,X是H或F,R是烷基,氧杂烷基,氟代烷基或烯基,在每种情况下具有至多7个碳原子。

    Nematic liquid crystal mixtures and a matrix liquid crystal display
    6.
    发明授权
    Nematic liquid crystal mixtures and a matrix liquid crystal display 失效
    向列液晶混合物和矩阵液晶显示器

    公开(公告)号:US06649088B1

    公开(公告)日:2003-11-18

    申请号:US09615737

    申请日:2000-07-13

    IPC分类号: C09K1912

    摘要: A nematic liquid crystal mixture having a positive dielectric anisotropy &Dgr;∈ of at least +4 and a birefringence &Dgr;n of at least 0.12, characterized in that the mixtures comprises one or more components having the core structure wherein L1, L2, Y and Z are each independently of one another H or F, one of Q1 and Q2 is 1,4-phenylene, 3-fluoro-1,4-phenylene or 3,5-difluoro-1,4-phenylene and the other residue Q1 or Q2 is —CH2CH2—, —CH2CH2CH2CH2— or—if at least one of L1, L2, Y and Z denotes F—also a single bond, whereby this core structure can be optionally further fluorinated in the benzene rings.

    摘要翻译: 具有至少+4的正介电各向异性Δε和至少为0.12的双折射Deltan的向列型液晶混合物,其特征在于,所述混合物包含一种或多种具有核心结构的组分,其中L 1,L 2, Y和Z各自独立地为H或F,Q 1和Q 2中的一个为1,4-亚苯基,3-氟-1,4-亚苯基或3,5-二氟-1,4 - 亚苯基和其余残基Q 1或Q 2是-CH 2 CH 2 - , - CH 2 CH 2 CH 2 CH 2 - 或 - 如果L 1,L 2,Y和Z中的至少一个表示F-也是单键 由此该核心结构可任选地进一步在苯环中氟化。

    Liquid crystal display
    7.
    发明授权
    Liquid crystal display 失效
    液晶显示器

    公开(公告)号:US5578241A

    公开(公告)日:1996-11-26

    申请号:US63093

    申请日:1993-05-18

    IPC分类号: C09K19/30 C09K19/52 G02F1/13

    CPC分类号: C09K19/3001 Y10T428/1027

    摘要: The invention relates to a liquid crystal display element which contains an electrically switchable, dielectrically positive twisted nematic liquid crystal layer between two substrates which together with a frame form a cell, and two layers with alignment layers thereon applied to the substrates. The liquid crystal mixture is based on SFM compounds. One of the electrodes forming an active matrix of non-linear switching elements is integrated within each picture element while the other electrode is the counter electrode. The alignment layer is an organic polymer layer which may be essential uniformly aligned by rubbing. The alignment layer results in an essential homogenous surface alignment of the liquid crystal layer with a surface tilt angle. The liquid crystal material comprises at least 30 wt. % of one or more compounds according to formula I ##STR1## wherein R, Z.sup.1, Z.sup.2, A.sup.1, A.sup.2, X, Y and n are herein defined, and the alignment layer is based on at least partially fluorinated polyimides.

    摘要翻译: 本发明涉及一种液晶显示元件,该液晶显示元件在两个基板之间包含电可切换的,介于上面的正扭曲向列型液晶层,该液晶显示元件与框架一起形成单元,其上具有对准层的两层施加到基板上。 液晶混合物基于SFM化合物。 形成非线性开关元件的有源矩阵的电极之一被集成在每个像素内,而另一个电极是对电极。 取向层是有机聚合物层,其可以通过摩擦基本均匀排列。 取向层导致液晶层与表面倾斜角的基本均匀的表面对准。 该液晶材料包含至少30wt。 %的一种或多种根据式I的化合物其中R,Z 1,Z 2,A 1,A 2,X,Y和n在此被定义,并且取向层基于至少部分氟化的聚酰亚胺。