Patent ID: 11955082
Assignee: BOE TECHNOLOGY GROUP CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. A pixel circuit disposed in a display substrate, the display substrate comprises: a display stage and a non-display stage, the pixel circuit is configured to drive a light emitting element to emit light in the display stage, and comprises: a first control sub-circuit, a second control sub-circuit, a third control sub-circuit, a fourth control sub-circuit, a light emitting control sub-circuit, and a driving sub-circuit;
the first control sub-circuit is electrically connected with a first power supply terminal, a second scanning signal terminal, a first reset signal terminal, a second reset signal terminal, a first initial signal terminal, a second initial signal terminal, a first node, a third node and a fourth node, respectively, and is configured to provide a signal of the first initial signal terminal or the third node to the first node under control of the first reset signal terminal and the second scanning signal terminal, and provide a signal of the second initial signal terminal to the fourth node under control of the second reset signal terminal;
the second control sub-circuit is electrically connected with a first scanning signal terminal, a third reset signal terminal, a third initial signal terminal, a data signal terminal and a second node, respectively, and is configured to provide a signal of the third initial signal terminal or the data signal terminal to the second node under control of the third reset signal terminal and the first scanning signal terminal;
the third control sub-circuit is electrically connected with the third reset signal terminal, a control signal terminal and the third node respectively, and is configured to provide a first signal to the third node in the display stage and provide a second signal to the third node or acquire a signal of the third node in the non-display stage under control of the third reset signal terminal;
the driving sub-circuit is electrically connected with the first node, the second node and the third node, respectively, and is configured to provide driving current to the third node under control of the first node and the second node;
the light emitting control sub-circuit is electrically connected with a light emitting signal terminal, the first power supply terminal, the second node, the third node and the fourth node respectively, and is configured to provide the signal of the first power supply terminal to the second node and the signal of the third node to the fourth node under control of the light emitting signal terminal;
the light emitting element is electrically connected with the fourth node and a second power supply terminal respectively;
the voltage value of the first signal is less than the voltage value of the signal of the third initial signal terminal, and the voltage value of the second signal is greater than the voltage value of the signal of the third initial signal terminal.