Patent ID: 11875734
Assignee: BOE TECHNOLOGY GROUP CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 18:
19. A drive method for a pixel circuit, configured to drive the pixel circuit according to claim 1, the method comprising:
providing, by a node control sub-circuit, a signal of an initial signal terminal to a second node and a third node under the control of a reset signal terminal;
providing, by the node control sub-circuit, a signal of the third node to a fourth node under the control of a scanning signal terminal, providing, by a writing sub-circuit, a signal of a current data terminal to a fifth node under the control of the scanning signal terminal, and providing, by a drive sub-circuit, a drive current to the fourth node under the control of the third node and the fifth node; and
providing, by a light-emitting control sub-circuit, a signal of a first power terminal to the fifth node and a signal of the fourth node to the second node under the control of a first node and a light-emitting signal line;
in a case where a gray tone displayed by a light-emitting element connected to the pixel unit is greater than a threshold gray tone, the method further comprising: providing, by a first control sub-circuit, a signal of a light-emitting signal terminal to the first node under the control of a current data terminal, a second control terminal, and a ground terminal; and
in a case where a gray tone displayed by a light-emitting element connected to the pixel unit is less than a threshold gray tone, the method further comprising: providing, by a second control sub-circuit, a signal of a high-frequency input terminal to the first node under the control of a time-length data terminal, a first control terminal, and a ground terminal.