The LED Display control system for computer controlled led display is synchronous control LED system. There are two parts:

Sending card: It is mounted on the computer and connected with DVI card. Programs are sent from the PC to DVI card and then to the Sending card. Sending card transfer program information to Receiving card by internet cable.

Receiving card: It is mounted on the LED screen cabinet. Its main function is receive program information from the PC. In order to guarantee a good quality. Normally, every cabinet will provide one receiving card.