US 12,307,960 B2
Pixel circuit, method for driving the same and display device
Tianyi Cheng, Beijing (CN); and Meng Li, Beijing (CN)
Assigned to CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., Sichuan (CN); and BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
Appl. No. 18/025,952
Filed by CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., Sichuan (CN); and BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
PCT Filed May 26, 2022, PCT No. PCT/CN2022/095193
§ 371(c)(1), (2) Date Mar. 13, 2023,
PCT Pub. No. WO2023/225931, PCT Pub. Date Nov. 30, 2023.
Prior Publication US 2024/0290255 A1, Aug. 29, 2024
Int. Cl. G09G 3/3225 (2016.01)
CPC G09G 3/3225 (2013.01) [G09G 2300/0819 (2013.01); G09G 2300/0842 (2013.01); G09G 2300/0861 (2013.01); G09G 2310/0251 (2013.01); G09G 2310/08 (2013.01); G09G 2320/0247 (2013.01); G09G 2340/0435 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for driving a pixel circuit,
wherein the pixel circuit comprises a light-emitting element, a first resetting circuit, a control circuit and a driving circuit, wherein
the first resetting circuit is electrically connected to a first resetting control terminal, a first initial voltage terminal and a first node, and configured to write a first initial voltage from the first initial voltage terminal into the first node under control of a first resetting control signal from the first resetting control terminal;
the control circuit is electrically connected to a first control terminal, a second control terminal, the first node, a control terminal of the driving circuit and a first terminal of the driving circuit, and configured to control the control terminal of the driving circuit to be electrically connected to the first node under control of a first control signal from the first control terminal, and control the first node to be electrically connected to the first terminal of the driving circuit under control of a second control signal from the second control terminal;
the first terminal of the driving circuit is electrically connected to the light-emitting element, and the driving circuit is configured to drive the light-emitting element to emit light;
wherein a display period comprises a first resetting stage and a second resetting stage arranged one after another, and the method comprises:
at the first resetting stage, writing, by the first resetting circuit, the first initial voltage from the first initial voltage terminal into the first node under control of the first resetting control signal, controlling, by the control circuit, the control terminal of the driving circuit to be electrically connected to the first node under control of the first control signal, and controlling, by the control circuit, the first node to be electrically connected to the first terminal of the driving circuit under control of the second control signal;
at the second resetting stage, controlling, by the control circuit, the control terminal of the driving circuit to be electrically connected to the first node under control of the first control signal, and controlling, by the control circuit, the first node to be electrically connected to the first terminal of the driving circuit under control of the second control signal.