POWER SUPPLY CIRCUIT AND POWER SUPPLYING METHOD

A power supply circuit is configured to supply power to a display panel. The power supply circuit includes a receiver circuit and a transmitter circuit. The receiver circuit is configured to couple the display panel and output a hot plugging signal. The transmitter circuit is configured to receive the hot plugging signal and couple a power circuit. The transmitter circuit is further configured to communicate the receiver circuit to generate an enable signal. The hot plugging signal and the enable signal are configured to control whether a first voltage signal from the power circuit is transmitted to the receiver circuit and the display panel via the transmitter circuit.