CIRCUIT DE PILOTAGE DE DISPOSITIF D'AFFICHAGE, CIRCUIT DE CONVERSION DE TENSION AINSI QUE DISPOSITIF D'AFFICHAGE ET PROCÉDÉ DE COMMANDE DE MISE HORS TENSION ASSOCIÉ

摘要

A driving circuit, a voltage conversion circuit, a display device and a control method thereof are provided, which belong to the field of display. The driving circuit comprises a voltage converter and a source driver. The voltage converter has a first terminal for receiving a first voltage from a power supply and a second terminal for outputting a second voltage to the source driver. The driving circuit further comprises a switch sub-circuit and a voltage comparison sub-circuit. The switch sub-circuit is disposed in a voltage transmission path between the second terminal of the voltage converter and the source driver. The voltage comparison sub-circuit is connected to the first terminal of the voltage converter. The voltage comparison sub-circuit is configured to control the switch sub-circuit to disconnect the voltage transmission path when the first voltage is less than a reference voltage.