In this paper, the design of a big LED displaying system with vedio signal processing function is introduced. This system has 12|bit displaying colour grades, and it realizes synchronous displaying with the VGA displayer of computer.

• 介绍了一种具有视频信号处理能力的大型 LED显示系统的设计方案 ；该系统具有高达 1 2比特的显示灰度等级 ；且与计算机 VGA显示器实现同步显示 .