液晶显示器中偏振光的行为  

Behavior of Polarized light in LCDs

作　　者：吴声[1] 凌志华[1] 黄锡珉[1] 

机构地区：[1]中国科学院长春物理研究所,长春130021

出　　处：《液晶通讯》1995年第4期230-241,共12页

摘　　要：液晶显示器的应用日益广泛,普遍应用的液晶显示器如扭曲向列(Twisted Nemetic,TN),超扭曲向列(Super Twisted Nemetic,STN),电控双折射(Electrically Controled Birefrigence,ECB)及宾主效应(Guest—Host effect,GH)等都是通过对偏振光的调制来实现显示的,因而研究液晶显示器中偏振光的行为有重要的意义.本文介绍了处理液晶显示器件偏振光问题的一般性办法,如琼斯矩阵.Berreman4×4矩阵及庞加莱球表示法,并由此进而介绍了广泛应用的几种液晶显示器的原理.最后,还介绍了用来提高显示特性如对比度,视角及色度等的膜补偿法的原理以及我们采用正性补偿膜补偿后的STN显示器的实例.Liquid Crystal Displays (LCDs) are being widely used aowadays. Popularly used LCD like Twisted Nemetic (TN), Super Twisted Nemetic (STN), Electrically Controlled bire-fringence (ECB) and Guest-Host effect (GH) are based on the modulation of polarized light. Study of polarized light in LCDs, therefore, is a meaningful subject for studying and discussing.We introduced some general solution of polarized light in LCDs , include Jones matrix, Berreman 4×4 matrix, and poincare sphere description. From this, we have discussed the way various LCDs working. Methods of improving display performance using retardation films are also discussed.

关 键 词：液晶显示器 偏振光 

分 类 号：TN873.93[电子电信—信息与通信工程]