Patent ID: 11942039
Assignee: HKC CORPORATION LIMITED
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 8:
9. A driving method of a pixel driving circuit, wherein the pixel driving circuit comprises a driving transistor, a storage capacitor, a trigger, a first response switch and a second response switch, wherein a first terminal of the driving transistor is connected to a power source, a second terminal of the driving transistor is connected to a light emitting unit, a control terminal of the driving transistor is connected to a first terminal of the storage capacitor, and a second terminal of the storage capacitor is connected to the power source;
wherein a first terminal of the first response switch is connected to a data line, a control terminal of the first response switch is connected to a scan line, a second terminal of the first response switch is connected to the first terminal of the storage capacitor, an input terminal of the trigger is connected to the scan line, a first terminal of the second response switch is connected to the second terminal of the driving transistor, a second terminal of the second response switch is connected to an initial voltage terminal, and a control terminal of the second response switch is connected to an output terminal of the trigger;
wherein the pixel driving circuit further comprises a third response switch, a first terminal of the third response switch being connected to the first terminal of the second response switch, and a second terminal of the third response switch being connected to the light emitting unit and wherein the output terminal of the trigger comprises a first output terminal and a second output terminal, the first output terminal being connected to the control terminal of the second response switch, and the second output terminal being connected to a control terminal of the third response switch;
wherein the driving method of the pixel driving circuit comprises:
controlling the scan line to provide a scan signal, the trigger receiving the scan signal at the input terminal thereof, and the trigger generating a first control signal in response to the scan signal; and
providing a voltage of the initial voltage terminal to the second terminal of the drive transistor by the control terminal of the second response switch in response to the first control signal;

wherein generating the first control signal by the trigger in response to the scan signal comprises:
generating, by the trigger, the first control signal and a second control signal in response to the scan signal; and
providing the first control signal to the control terminal of the second response switch via the first output terminal, and providing the second control signal to the control terminal of the third response switch via the second output terminal; and

wherein after the step of generating, by the trigger, a first control signal in response to the scan signal, the method comprises:
turning off the first terminal and second terminal of the third response switch by the control terminal of the third response switch in response to the second control signal.