US 12,175,938 B2
Pixel circuit, pixel driving method, display substrate and display device
Xuewei Tian, Beijing (CN); Bo Yang, Beijing (CN); and Shuai Xie, Beijing (CN)
Assigned to Chengdu BOE Optoelectronics Technology Co., Ltd., Sichuan (CN); and BOE Technology Group Co., Ltd., Beijing (CN)
Appl. No. 17/912,620
Filed by Chengdu BOE Optoelectronics Technology Co., Ltd., Sichuan (CN); and BOE Technology Group Co., Ltd., Beijing (CN)
PCT Filed Nov. 11, 2021, PCT No. PCT/CN2021/130055
§ 371(c)(1), (2) Date Mar. 29, 2023,
PCT Pub. No. WO2022/174626, PCT Pub. Date Aug. 25, 2022.
Claims priority of application No. 202110194006.7 (CN), filed on Feb. 20, 2021.
Prior Publication US 2023/0206849 A1, Jun. 29, 2023
Int. Cl. G09G 3/3258 (2016.01)
CPC G09G 3/3258 (2013.01) [G09G 2300/0819 (2013.01); G09G 2300/0861 (2013.01); G09G 2310/08 (2013.01); G09G 2320/0233 (2013.01); G09G 2320/041 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A pixel circuit, comprising a light emitting element, an energy storage circuit, a driving circuit, a data writing-in circuit, a compensation control circuit, an initialization circuit and a light emitting control circuit, wherein,
the compensation control circuit is electrically connected to a first control line, a control terminal of the driving circuit and a first terminal of the driving circuit, respectively, and is configured to control to connect the control terminal of the driving circuit and the first terminal of the driving circuit under the control of a first control signal provided by the first control line;
the data writing-in circuit is electrically connected to a second control line, the first terminal of the driving circuit and a data line respectively, and is configured to control to write a data voltage provided by the data line to the first terminal of the driving circuit under the control of a second control signal provided by a second control line;
the initialization circuit is respectively electrically connected to the second control line, the control terminal of the driving circuit and a second terminal of the driving circuit, and 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 the second control signal;
the light emitting control circuit is respectively electrically connected to the second control line, a third control line, a first voltage line, the first terminal of the driving circuit, the second terminal of the driving circuit and a first electrode of the light emitting element, and is configured to control to connect the first voltage line and the first terminal of the driving circuit under the control of the second control signal, and control to connect the second terminal of the driving circuit and the first electrode of the light emitting element and connect a second electrode of the light emitting element to the second voltage line under the control of a third control signal provided by the third control line;
a first terminal of the energy storage circuit is electrically connected to the first voltage line, and a second terminal of the energy storage circuit is electrically connected to the control terminal of the driving circuit, the energy storage circuit is configured to store electrical energy;
the driving circuit is configured to generate a driving current for driving the light emitting element to emit light under the control of a potential of the control terminal of the driving circuit.