LED indoor screens is composed of SMD LED, through red, green and blue lamp light out to display text, pictures, animation, video, content can be changed at any time, each component are display module structure. Usually by the display module, control system and power system components. The display module is composed of LED lamp is composed of lattice structure, responsible for light emitting display; control system by controlling the corresponding region is bright, can let the screen to display text, pictures, video and other content, constant dance card is mainly the animated; power supply system is responsible for the input voltage and current to voltage and current LED color screens need.LED color screen than the LED display screen should be simple, spacing color screen to gist in large area display effect, low cost advantage.