Full-color LED electronic screens are used in a wide range of applications. The door subtitle screens we often see can be replaced by full-color LED screens. At present, clothing chains, jewelry counters, mobile phone communications, video surveillance, stage backgrounds, and hotel receptions use indoor full-color screens. There are many LED electronic screens, and the market demand is steadily increasing. Outdoor current and potential markets are mainly advertising media, government publicity, entertainment industry, and leasing industry. As the pitch of outdoor full-color LED electronic screens becomes smaller and smaller, the environment that can be installed is also wider.