The scrolling light box is also called the light box. The principle is to use a set of digital scrolling system with animated surface spacing to achieve the effect of installing multiple screens in one light box, with timing control lighting, and some with LED electronics. A display that is used to post public interest messages or to increase visual appeal. The core technology is a set of digital scrolling system installed inside the light box. The single chip or DSP processing chip is used to control two brushless motors integrated with mechanical limit devices, and various picture materials are used to achieve multi-picture effects.