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1、光电性能测试之对比度测试原理简述测试用设备:LCD Evaluation Systen LCD-5200对比度测试原理:由于所用测试设备可以模拟LCD的驱动条件和动态显示，我们就是基于此而测试LCD的 各项光电性能.A：首先我们先根据LCD的驱动条件(Vop/Duty/Biass)模拟给需要测试的LCD 一组模拟 动态电压(Von/Vof先测试出LCD的电压/灰度曲线图-如下图一：图一:.Data: Refl.%VoltageVo1897.05599.0938.196.40799.1888.292.3498.9978.389.52999.3598.483.0961 00.1 88.575.97
2、498.5688.665.48898.8988.753.27199.7468.841.62398.4288.928.6797.70791 8.3397.4069.111.66596.2239.28.148893.7889.35.91 8990.7989.45.224786.7559.55.591382.119.64.875274.0879.75.472265.1519.85.754355.469.95.39744.773105.873433.10310.16.03823.45610.25.807615.89310.36.249511.02610.46.51 287.705410.56.3232
3、6.218210.66.56765.230910.76.5884.840710.86.66174.688710.9.7.19144.879911If 6.98925.2654Voff 曲线Von 曲线电压一览LCD 灰度一览灰度:是基于 LCD 的底色为基础，在不同驱动电压下的颜色变化(及显示图形的浓度)B:LCD的对比度曲线是基于图一的基础上通过程式换算而得，如图二:S S A SMeas. Cond.016106213最好对比度110图二10.610.710.810.210.310.4对比度g.g10阴d门电压曲戋图盒8.28.38.48.58.878.88.99?9.29.39.49.1
4、919.7Digital Display (1)Analyze Meas. Result(l) Digital Analysis Vmaile(F) Edit (E) Display (V) Meas. (M) Analysis (A) Setting Window(W) Help(H)勖 5或ting| 昌Print嗚 5avo对比度:是基于在Von和Voff状态下LCD的灰度比值(Von/Voff)Data: Contrast Ratio8.2959号Setting| 昌 Print 19 SVoltageM1.0211.02891.07211.10981.20571.29741.51021.87242.36473.4085.31 48.248711.50915.3416.60514.68515.19711.9065.636110.13.88472.73661.76431.1 83110.50.983390.796470.7347807038310.90.678580.75336Contrast RatioContrast Ratio Meas.Contrast Ratio Meas.9VoltagevJ16.605
5200对比度测试原理中文
