Patent ID: 11875742
Assignee: BOE TECHNOLOGY GROUP CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 10:
11. A drive method of a display drive circuit, for driving the display drive circuit according to claim 1, wherein the drive method comprises:
at a scanning stage, applying a target data voltage to the data receiving terminal and applying a valid level signal to the scanning line, so that the drive transistor outputs a drive current to the light emitting device, and generating a sensing voltage positively correlated with the drive current by the voltage generating sub-circuit according to the drive current flowing through the light emitting device and the target data voltage of the data receiving terminal; adjusting a voltage of the control terminal by the voltage adjusting sub-circuit according to relationship of magnitude between the sensing voltage output by the voltage generating sub-circuit and a voltage of the second power supply terminal until the sensing voltage output by the voltage generating sub-circuit is equal to the voltage of the second power supply terminal; and storing a voltage between two terminals of the storage capacitor by the storage capacitor; and
at a display stage, applying an invalid level signal to the scanning line, so that the gate electrode of the drive transistor and the control terminal of the compensation circuit are disconnected and the second electrode of the light emitting device and the sensing terminal of the compensation circuit are disconnected, and providing the drive current to the light emitting device by the drive transistor according to the voltage stored by the storage capacitor.