Currently, there are many types of LED full-color screens available in the market, such as indoor and outdoor LED full-color displays. Indoor LED full-color displays have smaller light-emitting points, typically with a point spacing of PH6mm to PH7.62mm. Their display area is generally several to ten square meters or even larger, and they are mainly used in indoor halls, bars, stages, performance halls, train stations, airports, cinemas, etc.