China has the world's largest LED display population and makes great industry breakthroughs these years, many indicators have reached the world's top level, even surpass those in US for some respects. Full-color LED display comes with hightech system integration, which is a new type of electronic media, and it has got more and more applications in many areas. What makes such products outstanding: high brightness and environmental adaptability, they are usally used in showcases of pictures and videos from outdoor or indoor, such as advertising media, stage scenery, building decoration, traffic information, sports venues and so on.-tech system integration, which is a new type of electronic media, and it has got more and more applications in many areas. What makes such products outstanding: high brightness and environmental adaptability,they are usally used in showcases of pictures and videos from outdoor or indoor, such as advertising media, stage scenery, building decoration, traffic information, sports venues and so on.