Display driving circuit, driving method thereof, and display device

A display driving circuit, comprising:

• a power supply management circuit, a logic circuit, a level conversion circuit, and a voltage detection circuit, wherein:
• a first output terminal of the logic circuit is connected to a first input terminal of the power supply management circuit, and a second output terminal of the logic circuit is connected to a first input terminal of the voltage detection circuit;
• an output terminal of the power supply management circuit is connected to a second input terminal of the voltage detection circuit;
• and an output terminal of the voltage detection circuit is connected to a second input terminal of the power supply management circuit;
• the logic circuit is configured to output a standard reference voltage signal to the voltage detection circuit, and to output a control signal to the power supply management circuit, the control signal is configured to control the power supply management circuit to output a reference voltage signal;
• the voltage detection circuit is configured to control the power supply management circuit to stop outputting the reference voltage signal, upon determining that the received reference voltage signal output by the power supply management circuit is abnormal according to the standard reference voltage signal output by the logic circuit;
• a first input terminal of the level conversion circuit is connected to the output terminal of the power supply management circuit, a second input terminal of the level conversion circuit is connected to a third output terminal of the logic circuit, and an output terminal of the level conversion circuit is connected to a shift register signal output port;
• and
• the level conversion circuit is configured to generate and output a gate driver control signal (GPI signal) according to a high-voltage power supply signal sent from the logic circuit and the reference voltage signal sent from the power supply management circuit.