With the implementation and promotion of the national "hundred cities and thousands of screens" ultra-high definition video project, LED large screen has become the mainstream media for urban outdoor commercial advertising and public information release. The ultra-high definition large screen arranged in important business districts, large comprehensive transportation hubs, network red landmarks, cultural venues and other places has its shocking visual impact, which can bring immersive sensory experience outdoors and help to comprehensively upgrade the quality of urban commercial life.