US 12,293,715 B2
Pixel circuit, driving method and display device
Weixing Liu, Beijing (CN); Zhiqiang Xu, Beijing (CN); Jintao Peng, Beijing (CN); Chunfang Zhang, Beijing (CN); Wanpeng Teng, Beijing (CN); Kai Guo, Beijing (CN); and Jiao Li, Beijing (CN)
Assigned to BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
Appl. No. 18/247,634
Filed by BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
PCT Filed Jun. 24, 2022, PCT No. PCT/CN2022/101320
§ 371(c)(1), (2) Date Mar. 31, 2023,
PCT Pub. No. WO2023/245674, PCT Pub. Date Dec. 28, 2023.
Prior Publication US 2024/0371323 A1, Nov. 7, 2024
Int. Cl. G09G 3/3233 (2016.01); G09G 3/20 (2006.01)
CPC G09G 3/3233 (2013.01) [G09G 3/2007 (2013.01); G09G 2300/0852 (2013.01); G09G 2300/0861 (2013.01); G09G 2310/08 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A pixel circuit, comprising a light emitting element, a first energy storage circuit, a first driving circuit, a second driving circuit, a first driving control circuit, a second driving control circuit, a second energy storage circuit and a first control data voltage writing-in circuit; wherein
a first terminal of the first energy storage circuit is electrically connected to a first node, a second terminal of the first energy storage circuit is electrically connected to a second node, and the first energy storage circuit is used for store electrical energy;
a control terminal of the first driving control circuit is electrically connected to a third node; a control terminal of the second driving control circuit is electrically connected to a fourth node;
the first driving control circuit is also electrically connected to the second node and the control terminal of the first driving circuit, is configured to control to connect or disconnect the second node and the control terminal of the first driving circuit under the control of a potential of the third node;
the second driving control circuit is also electrically connected to the second node and the control terminal of the second driving circuit, is configured to control to connect or disconnect the second node and the control terminal of the second driving circuit under the control of a potential of the fourth node;
a first terminal of the second energy storage circuit is electrically connected to the third node, and a second terminal of the second energy storage circuit is electrically connected to a first terminal of the first driving circuit, the second energy storage circuit is used to store electric energy;
the first control data voltage writing-in circuit is electrically connected to a first writing-in control terminal, a first control data voltage writing-in terminal and the third node respectively, is configured to control to write a first control data voltage provided by the first control data voltage writing-in terminal into the third node under the control of a first writing-in control signal provided by the first writing-in control terminal;
both the first terminal of the first driving circuit and the first terminal of the second driving circuit are electrically connected to a power supply voltage terminal, and the second terminal of the first driving circuit and the second terminal of the second driving circuit are all electrically connected to the light emitting element, the first driving circuit is used to drive the light emitting element under the control of a potential of the control terminal of the first driving circuit, and the second driving circuit is used to drive the light emitting element under the control of a potential of the control terminal of the second driving circuit.