液晶屏低灰阶下显示不均的改善和研究

发布时间：2018-04-11 01:06

本文选题：液晶屏 + 显示不均　；参考：《液晶与显示》2017年07期

【摘要】：针对目前液晶显示屏在低灰阶下显示不均匀的问题,对基于图像处理的亮度矫正方法在液晶显示屏中的改善进行了实验。基于高精度超暗亮度CCD采集器,采集液晶显示屏在低灰阶下单个像素的亮度信息及Gamma曲线数据,并逐个像素进行矫正。重点介绍了该采集系统与其他采集设备的优势及亮度和云纹矫正算法,试验结果表明:该采集系统可以一次完成所有像素的亮度信息的采集,并能有效分辨各像素点的亮度,理论上均匀度可以提高到100%,在正常显示状态下,可以独立实时地对每一帧画面进行矫正,确保显示信息的真实性。
[Abstract]:Aiming at the problem of non-uniform display of liquid crystal display (LCD) at present, the improvement of brightness correction method based on image processing in liquid crystal display (LCD) is studied.Based on a high precision ultra-dark brightness CCD collector, the brightness information and Gamma curve data of an order pixel in a low gray scale are collected and corrected one by one.The advantages of the acquisition system and the algorithm of brightness and moire correction are introduced in detail. The experimental results show that the system can collect the brightness information of all pixels at one time, and can effectively distinguish the brightness of each pixel.In theory, the uniformity can be raised to 100. In the normal display state, each frame can be corrected independently and in real time to ensure the authenticity of the display information.
【作者单位】：北京京东方专用显示科技有限公司;
【分类号】：TN873.93

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