近年来,LED大屏幕显示器(以下简称大屏)被广泛地应用于众多领域之中。特别是2008年北京奥运会开幕式上,大屏技艺得以炉火纯青的表现,而越发使得大屏技术应用一发不可收。大屏技术是根据艺术舞台天幕、电影背景放映合成以及团体操背景台发展而来的(见图2)。早期的大屏,是由多支大尺寸的电视机显像管 In recent years, LED large-screen display (hereinafter referred to as the big screen) is widely used in many fields. In particular, at the opening ceremony of the 2008 Beijing Olympic Games, big-screen technology was able to perform well, while the more and more the big-screen technology was overwhelmed. Large-screen technology is based on the art stage canopy, the film background synthesis and composition of the gymnastics background stage (Figure 2). Early large screen, is composed of multiple large-size TV picture tube