TN-LCD用聚酰亚胺取向排列剂  

Polyimide as Alignment Agent of the Twist Nematic Liquid Crystals Display Device

作　　者：杨正华[1] 李悦生[1] 丁孟贤[1] 孙睿鹏[2] 黄锡珉[2] 

机构地区：[1]中国科学院长春应用化学研究所,长春130022 [2]中国科学院长春物理研究所

出　　处：《液晶通讯》1995年第2期77-81,共5页

摘　　要：用溶液缩聚—热酰亚胺化法和溶液缩聚—化学酰亚胺化法合成了一系列芳香族聚酰亚胺,研究了它们的液晶取向特性、储存稳定性、耐热性、透明性和接性等与分子结构之间的关系,并考查了制备方法对液晶取向性、透明性和粘接性能的影响.得到了若干种液晶预倾角适中、储存稳定性优异、透明性好和耐热的TN—LCD用取向排列剂.A series of aromatic polyimides was prepared by a condensation polymerization reaction an aromatic dianhydride with an aromatic diamine in N, N-dimethylacetamide follow either by thermal imimdization reaction or by chemical one. The relationship between the chemical structure and the properties such as storage life, adhesive property to glass transparency and the pretilt angle for nematic liquid crystals was investigated. Further the effect of the prepared method of polyimides on the above properties was also examined. ODPA-DMMDA and TDPA-DMMDA with favorable properties are good alignment materials of TN-LCD.

关 键 词：液晶显示器 扭曲向列 取向排列剂 聚酰亚胺 

分 类 号：TN873.93[电子电信—信息与通信工程]