The video picture of computer was scanned to the display board of huge screen . Because of the speciality of LED material the method of signal control is digital . So the system is a typical application of signal processing of digital video .

本系统将计算机 视频图像扫描到大屏幕 显示 板上，LED器件特性决定了信号的控制是全数字式的，是数字视频信号处理系统的一个典型应用。