液晶显示器件动态调制函数的测量与计算

Measurement and Calculation of LCDs' Dynamic Modulation Transfer Function

为了降低液晶显示运动模糊,人们提出了各种方法,包括过驱动、背光扫描、高帧频等技术。如何客观准确地评价液晶显示的运动模糊程度,比较不同方法的优劣,对液晶显示的开发与应用至关重要。论文借鉴了光学系统中传统调制传递函数的概念,引入了动态调制函数作为液晶显示运动模糊的评价参数,详细讨论了动态调制函数的物理意义、测量计算及具体应用。

In order to reduce the motion blur of LCDs,various methods have been proposed,such as overdriving,backlight scanning,high frame rate,and so on.How to objectively and correctly evaluate the motion blur degree of LCDs and compare different methods is very important to LCD＇s development and application.Dynamic modulation transfer function（MTF） is introduced as parameter of motion blur of LCDs.The physical meaning,measurement principle,calculation and particular application of dynamic modulation transfer function are discussed thoroughly.