A Model of the Unidirectional Alignment Accompanying the Pretilt Angle of a Nematic Liquid Crystal (NLC), 5CB, Oriented on Rubbed Organic-Solvent-Soluble Polyimide Film
A Model of the Unidirectional Alignment Accompanying the Pretilt Angle of a Nematic Liquid Crystal (NLC), 5CB, Oriented on Rubbed Organic-Solvent-Soluble Polyimide Film
复制标题
摩擦有机溶剂可溶性聚酰亚胺薄膜上定向向列液晶 (NLC) 5CB 的预倾角单向取向模型
DOI：
10.1080/10587259608034058
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发表时间：
1996
影响因子：
0.7
通讯作者：
S. Kobayashi
中科院分区：
文献类型：
--
作者：
M. Nishikawa;N. Bessho;T. Natsui;Y. Ohta;N. Yoshida;D. Seo;Y. Iimura;S. Kobayashi
本文报道了一种适用于彩色有源矩阵液晶显示器的摩擦有机溶剂型聚酰亚胺(PI)膜上的向列相液晶(NLC)5CB的单向取向与预倾角的模型。根据我们的计算机计算，含有特殊部分的PI分子的主链形成了螺旋状结构。本文提出的NLC取向模型认为，摩擦引起螺旋结构的永久拉伸和变形，从而导致NLC单向取向和预倾角，后者归因于形成不对称的微观三角形。
Abstract We report a model of the unidirectional alignment accompanying the pretilt angle of a nematic liquid crystal (NLC), 5CB, oriented on rubbed organic-solvent-soluble polyimide (PI) film, which is useful for color active matrix liquid crystal displays. According to our computer calculation, the main chain of the PI molecule, which contains special moieties, forms a helicoidal structure. The model suggested in this paper for the NLC alignment claims that rubbing gives rise to the permanent stretching and deformation of the helicoidal structure that results in the NLC unidirectional alignment and pretilt angle, where the latter is attributed to the formation of asymmetric microscopic triangles.