(1) Display Unit
This is the main part of the LED display screen and consists of a light emitting material and a driving circuit. The indoor screen is a variety of unit display panels, and the outdoor screen is the unit cabinet.
(2) Main controller
The role is to buffer the incoming RGB digital video signal, transform the grayscale, reorganize, and generate various control signals.
(3) Switching power supply
The purpose is to convert 220V AC power into various DC circuits for various circuits.
(4) Transmission cable
The display data and various control signals generated by the main controller are transmitted to the screen body by the twisted pair cable.
(5) Scan controller
The board's function is data buffering, generating various scan signals and duty cycle grayscale control signals.
(6) Dedicated display cards and multimedia cards (video cards)
In addition to the basic functions of a computer display card, LED full-color dedicated display cards also output digital RGB signals and line, field, blanking, and other signals to the main controller. In addition to the above functions, the multimedia card can also convert the input analog Video signal into a digital RGB signal (ie, video capture).
(7) Other signal sources and their external devices
Including computers, televisions, Blu-ray, DVD, VCD, camcorders, etc.
