In recent years, with the continuous development of commercial buildings, culture, comfort, interaction and the richness of the industry is also increasingly important, such as the large atrium, sightseeing elevators, fountains, etc., so that it is commercial space pay more attention to the creation of the inner atmosphere so that customers are immersed in its shaping of the space to linger, the mall atrium commercial LED screen to show more and more forms, round, arc rows, etc.