A rental led display is different from a fixed led display. Fixed led display is divided into outdoor fixed and indoor fixed, generally installed in a place will not move for a long time. The rental led display needs to be moved to designated venues to play videos according to the needs of performances and publicity. In order to meet this often-moving performance, vehicle-mounted led screens came into being. Rental led displays are not only used outdoor, but also often indoor, such as stage shows, fashion shows, temporary advertising, new product launches, and so on. The viewing distance of the rental led screen will not be too far or too close, so it is between the outdoor fixed led display and the fine pitch led display. The pixel pitch specifications are generally P6.25, P5.59, P4.81, P4, P3.91, etc. Below P2 are fine pitch led screens, while above P6.25 are generally outdoor fixed led screens.