The development of LED in China began in the 1970s, after several decades of development, hundreds of enterprises have been committed to the LED screen industry, through continuous technological transformation, innovation, in many areas have achieved higher results. In the Spring Festival evening of the Dragon Year, a large number of gorgeous stage made of LED means that LED has gradually entered our lives, and in more and more fields play a high-definition picture, high-quality color advantage. Led electronic display screen has been widely used in the stage. As an extension and supplement of the stage performance, LED can enliven the scene atmosphere and increase audience's imagination. At the same time, high-tech LED large screen from a single, fixed vision, can be free and flexible transformation, visual bring a different freshness. Ultra-thin portable display LED display, more diverse design, this technological revolution has LED more and more TV programs also began to favor LED display. In Chengdu Railway Station, there is an impressively large screen on which wonderful advertisements are played from time to time, attracting tourists to stop and watch. As a part of the theme "Chengdu Station, come and will miss" , the completion of the railway station LED display project has won the hearts of more passengers for Chengdu Railway Station. This piece of LED display has played the obvious role to many merchants to place the advertisement propaganda, the high clear picture and the high quality sound quality, has left the deep impression to the general passenger. With government, information travels faster. Today, LED displays are no longer a stranger to the public eye, and in many government bulletin boards, there are also LED screens that scroll through information. Information through the LED screen broadcast, three-dimensional sense of strong, eye-catching color so that many people will never forget. Timely and up-to-date information, with repeated emphasis on key points, makes government open information more timely and effective.