US 12,236,884 B2
Pixel circuit, driving method and display device
Tianyi Cheng, Beijing (CN); Meng Li, Beijing (CN); and Zhongliu Yang, Beijing (CN)
Assigned to CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., Sichuan (CN); and BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
Appl. No. 18/028,458
Filed by CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., Sichuan (CN); and BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
PCT Filed Jun. 29, 2022, PCT No. PCT/CN2022/102543
§ 371(c)(1), (2) Date Mar. 24, 2023,
PCT Pub. No. WO2024/000325, PCT Pub. Date Jan. 4, 2024.
Prior Publication US 2024/0312416 A1, Sep. 19, 2024
Int. Cl. G09G 3/3258 (2016.01)
CPC G09G 3/3258 (2013.01) [G09G 2300/0842 (2013.01); G09G 2310/08 (2013.01); G09G 2320/0247 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A pixel circuit, comprising a light emitting element, a driving circuit, an energy storage circuit, an initialization circuit, and a compensation control circuit; wherein a display period of the pixel circuit includes a refresh frame and a retention frame;
the refresh frame and the retention frame each include a set phase and a light emitting phase set successively;
the energy storage circuit is electrically connected to a control terminal of the driving circuit and is used for storing electric energy;
the compensation control circuit is electrically connected to a compensation control terminal, the control terminal of the driving circuit, and a second terminal of the driving circuit, respectively, is configured to control to connect the control terminal of the driving circuit and the second terminal of the driving circuit under the control of a compensation control signal provided by the compensation control terminal;
the initialization circuit is respectively electrically connected to an initial control terminal and an initial voltage terminal, and the initialization circuit is respectively electrically connected to a first terminal of the driving circuit and/or the second terminal of the driving circuit, is configured to control provide an initial voltage provided by the initial voltage terminal to the first terminal and/or the second terminal of the driving circuit in the refresh frame and the retention frame, at least in the set phase under the control of an initial control signal provided by the initial control terminal at least in the set phase;
the second terminal of the driving circuit is electrically connected to the light emitting element, and is configured to drive the light emitting element under the control of a potential of the control terminal of the driving circuit;
wherein the initialization circuit includes a second initialization sub-circuit; the initial control terminal includes a second initial control terminal, and the initial voltage terminal includes a second initial voltage terminal;
the second initialization sub-circuit is electrically connected to the second initial control terminal, the second initial voltage terminal and the first terminal of the driving circuit, respectively, is configured to write a second initial voltage provided by the second initial voltage terminal into the first terminal of the driving circuit in the refresh frame and the retention frame, at least in the set phase under the control of a second initial control signal provided by the second initial control terminal.