摘要
本文简明介绍了扭曲向列型液晶显示器（ＴＮ—ＬＣＤ）的类型以及正常白型ＴＮ—ＬＣＤ的一些特征，总结几种提高对比度，增大视角，改进显示质量的相补偿方法。阐述了聚合物取向膜提高ＴＮ—ＬＣＤ对比度与视角的原理，重点说明聚酰亚胺分子由于面内取向而具备的负性双折射对ＴＮ—ＬＣＤ的相补偿作用，即：减少偏离液晶分子光轴方向上的漏光从而提高对比度，增大视角。还具体展示了我们制备的透明聚酰亚胺薄膜对一种正常白型ＴＮ—ＬＣＤ增大视角的相补偿效果。
Several compensators for twisted nematic liquid crystal displays were reviewed. The compensators based on the in-plane orientation of solution cast undrawn aromatic polyimide thin films were emphasized. A high degree of transmission and a negative birefrin gence polyimide undrawn thin film developed in this institute was also reported as a compensator for a twisted nematic liquid crystal displays to improve contrast ratio and visual angle of the displays.
出处
《液晶与显示》
CAS
CSCD
1996年第1期26-33,共8页
Chinese Journal of Liquid Crystals and Displays
关键词
扭曲
向列型
液晶显示器
相补偿
视角
nematic twisted liquid crystal display
phase compensation
negative birefringence
viewing angle
thin films
