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    • 17. 发明授权
    • Liquid crystal display
    • 液晶显示器
    • US5578241A
    • 1996-11-26
    • US63093
    • 1993-05-18
    • Herbert PlachBernhard RiegerVolker ReiffenrathEike Poetsch
    • Herbert PlachBernhard RiegerVolker ReiffenrathEike Poetsch
    • C09K19/30C09K19/52G02F1/13
    • C09K19/3001Y10T428/1027
    • 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.
    • 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。