基于双线性插值最值滤波的Mura改善方法  

Improvement of Mura Based on the Maximum/Minimum Bilinear Interpolation Method

作　　者：梁志虎[1] 张小宁[1] 岳俊峰[1] 屠震涛[1] 黄泰钧 梁鹏飞[2] 王利民[2] 

机构地区：[1]西安交通大学电子与信息工程学院电子物理与器件教育部重点实验室,西安710049 [2]深圳市华星光电技术有限公司,广东深圳518132

出　　处：《光子学报》2016年第7期24-29,共6页Acta Photonica Sinica

基　　金：国家自然科学基金(No.61372018)资助~~

摘　　要：为改善液晶面板的Mura缺陷,提出了一种灰度补偿校正Mura缺陷的方法.针对典型灰度级的亮度分布矩阵,采用双线性插值最值滤波法进行图像滤波,计算全屏目标亮度,根据各像素点拟合出的亮度-灰度关系曲线,得到各灰度级的补偿数据.实验结果表明,经过Mura补偿,55英寸的液晶模组上显示灰度图像的Mura条纹消失,Mura指数降低,且补偿并未对屏幕总体亮度和对比度等造成明显改变.In order to improve the Mura defect of the liquid crystal display, a grayscale compensation was proposed. Based on the brightness distribution matrix of typical grayscales, bilinear interpolation and the most value filtering was used to filter image, and then calculate the target brightness of the full screen. According to the fitted curve of grayscales and brightness, the compensation data of grayscales was obtained. The results of the experiments which performed on a 55-inch liquid crystal display module show that Mura stripes of the images diplayed on the module disappeared, and the Mura indexes decreased by Mura compensation.It has little influence on the overall brightness and contrast of displayed image.

关 键 词：液晶显示 Mura 亮度拟合 灰度补偿 双线性插值 

分 类 号：TN949.192[电子电信—信号与信息处理]