Patent ID: 11869413
Assignee: BOE TECHNOLOGY GROUP CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. A pixel circuit comprising: a first switching sub-circuit, a second switching sub-circuit, a gray scale control sub-circuit, a driving sub-circuit and a light-emitting element,
wherein the first switching sub-circuit is electrically connected with a data line and the gray scale control sub-circuit, the first switching sub-circuit is further connected with a first gate line or a second gate line, the first switching sub-circuit is configured to transmit a data voltage from the data line to the gray scale control sub-circuit under control of a scanning signal from the first gate line or the second gate line,
wherein the gray scale control sub-circuit is further electrically connected with an anode of the light-emitting element and the driving sub-circuit, the gray scale control sub-circuit is configured to control a duration during which the driving sub-circuit is electrically connected with the light-emitting element based on the data voltage,
wherein the driving sub-circuit is electrically connected with a first operation voltage terminal to receive a first voltage from the first operation voltage terminal,
wherein the second switching sub-circuit is electrically connected with a second voltage terminal, the driving sub-circuit and a third gate line, the second switching sub-circuit is configured to transmit a second voltage from the second voltage terminal to the driving sub-circuit under control of a control signal from the third gate line,
wherein a cathode of the light-emitting element is electrically connected with a second operation voltage terminal, the driving sub-circuit is configured to provide a constant driving current to the light-emitting element under control of the second voltage from the second voltage terminal, and the light-emitting element is configured to emit light based on the driving current,
wherein the first switching sub-circuit comprises a first transistor, a gate of the first transistor is electrically connected with the first gate line or the second gate line, a first terminal of the first transistor is electrically connected to the data line, and a second terminal of the first transistor is electrically connected to the gray scale control sub-circuit.