全彩色LED显示屏亮色分离校正算法与应用

Separation of Luminance and Chromaticity Correction Algorithm for Full-Color LED Display Screen

为了解决全彩色LED显示屏逐点色度校正存在的色坐标采集困难,显示控制系统性能下降等问题,提出一种亮色分离校正算法。以分辨率8×8为最小单位,实现单个像素点非标准色域空间到标准色域空间转换矩阵的分离,色坐标的采集量降低至逐点色度校正的1/64,转换参量的个数降低至逐点色度校正的34.9%,扫描频率提升至逐点色度校正的2倍。亮色分离校正算法一定程度上解决了逐点色度校正的问题,同时提高了显示控制系统的性能。

Point-by-point chromaticity correction for full-color LED display screen is troubled by chromaticity coordinate value acquisition,display control system performance degradation,etc.As the minimum unit of resolution 8×8,separation of luminance and chromaticity correction algorithm is proposed to reduce acquisition of chromaticity to 1/64 and the number of conversion parameters is reduced to 34.9%by separation of conversion matrix from a non-standard gamut space to a standard gamut space,compared to point-by-point chromaticity correction algorithm,which result that the scan frequency increases two times by optimizing the conversion parameter precision.In conclusion,the separation of luminance and chromaticity correction algorithm solves the problem of point-by-point chromaticity correction algorithm to some extent,and improves the performance of the display control system.