DP signal fan-out driving circuit based on physical layer and display screen driving system

The utility model discloses a DP signal fan-out driving circuit based on a physical layer and a display driving system, the DP signal fan-out driving circuit based on the physical layer comprises a master control device and a driving device, and the master control device is in communication connection with the driving device; the main control device comprises a processing chip; the processing chip is used for outputting a DP signal, an AUX signal and a synchronous clock signal; the driving device comprises a fan-out module and a synthesis module. The fan-out module is used for receiving DP signals and outputting ECL signals. And the synthesis module is used for receiving the ECL signal and synthesizing the ECL signal and the AUX signal into a standard DP signal. The display screen drive circuit not only can be applied to the drive of a standard DP protocol display screen, but also can be applied to the drive of a non-standard DP protocol display screen, so that the application market of products is greatly ex