VA液晶显示器光程差测量方法分析

The Analyse of a Measure Method of VA LCD's Optical Path Difference

垂直排列Vertical Array简称VA,VA液晶显示器盒内液晶分子的排列方式是垂直排列,因此采用现有常用的光程差测试设备如CG-200,无法测量出VA液晶显示器的光程差。文章研究利用VA液晶显示器的显示机理,通过测试比较不同光程差对应的高压光电曲线,总结出测量VA液晶显示器光程差的简单方法。

VA is short for Vertical Array.The liquid crystal molecules inside the VA LCD are vertical arrangement,so we can not measure VA LCD＇s optical path difference by normal test instrument such as CG-200.Using the VA LCD＇s display mechanism,this research summarizes a simple method to measure VA LCD＇s optical path difference through comparing the high-voltage photoelectric curves of different VA LCDs with different optical path difference.