US 12,307,967 B2
Pixel circuit, display panel, driving method and display device
Dachao Li, Beijing (CN); Zhijian Zhu, Beijing (CN); Shengji Yang, Beijing (CN); Xiaochuan Chen, Beijing (CN); Junyan Yang, Beijing (CN); Pengcheng Lu, Beijing (CN); and Longfei Fan, Beijing (CN)
Assigned to YUNNAN INVENSIGHT OPTOELECTRONICS TECHNOLOGY CO., LTD., Yunnan (CN); and BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
Appl. No. 18/262,699
Filed by YUNNAN INVENSIGHT OPTOELECTRONICS TECHNOLOGY CO., LTD., Yunnan (CN); and BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
PCT Filed May 31, 2022, PCT No. PCT/CN2022/096196
§ 371(c)(1), (2) Date Jul. 24, 2023,
PCT Pub. No. WO2023/230826, PCT Pub. Date Dec. 7, 2023.
Prior Publication US 2024/0395199 A1, Nov. 28, 2024
Int. Cl. G09G 3/3233 (2016.01)
CPC G09G 3/3233 (2013.01) [G09G 2300/0852 (2013.01); G09G 2310/08 (2013.01); G09G 2320/0233 (2013.01)] 23 Claims
OG exemplary drawing
 
1. A pixel circuit, comprising a light emitting element, a driving circuit, a first energy storage circuit, a second energy storage circuit, and a writing-in control circuit; wherein
a first terminal of the first energy storage circuit is electrically connected to a control terminal of the driving circuit and a first terminal of the writing-in control circuit respectively, and a second terminal of the first energy storage circuit is electrically connected to a first terminal of driving circuit, a first terminal of the second energy storage circuit is electrically connected to a second terminal of the writing-in control circuit, and a second terminal of the second energy storage circuit is electrically connected to a writing-in terminal; the first energy storage circuit and the second energy storage circuit are used to store electrical energy;
a control terminal of the writing-in control circuit is electrically connected to a first writing-in control terminal, and the writing-in control circuit is configured to control to connect or disconnect the first terminal of the first energy storage circuit and the first terminal of the second energy storage circuit under the control of a first writing-in control signal provided by the first writing-in control terminal;
a second terminal of the driving circuit is electrically connected to the light emitting element, and the driving circuit is configured to generate a driving current for driving the light emitting element under the control of a potential of the control terminal of the driving circuit;
the pixel circuit further comprises a first control circuit; wherein
the first control circuit is electrically connected to a first control terminal, the first terminal of the second energy storage circuit, and the second terminal of the second energy storage circuit, is configured to control to connect or disconnect the first terminal of the second energy storage circuit and the second terminal of the second energy storage circuit under the control of a first control signal provided by the first control terminal.