US 12,451,050 B2
Pixel circuit and display device
Ning Cong, Beijing (CN); Minghua Xuan, Beijing (CN); Can Zhang, Beijing (CN); Can Wang, Beijing (CN); Jinfei Niu, Beijing (CN); and Jingjing Zhang, Beijing (CN)
Assigned to BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., Beijing (CN); and Beijing BOE Technology Development Co., Ltd., Beijing (CN)
Appl. No. 18/262,893
Filed by BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., Beijing (CN); and BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
PCT Filed Jul. 29, 2022, PCT No. PCT/CN2022/108878
§ 371(c)(1), (2) Date Jul. 25, 2023,
PCT Pub. No. WO2024/020997, PCT Pub. Date Feb. 1, 2024.
Prior Publication US 2025/0014502 A1, Jan. 9, 2025
Int. Cl. G09G 3/32 (2016.01)
CPC G09G 3/32 (2013.01) [G09G 2300/0842 (2013.01); G09G 2310/061 (2013.01); G09G 2310/08 (2013.01); G09G 2320/0233 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A pixel circuit, comprising a light emitting circuit, a light emitting control circuit, a first control circuit and a switch control circuit; wherein
the light emitting control circuit is electrically connected to a light emitting control terminal, a control voltage input terminal and the light emitting circuit respectively, and is configured to control to connect the control voltage input terminal and the light emitting circuit under the control of a light emitting control signal provided by the light emitting control terminal;
the light emitting circuit is configured to emit light according to a control voltage provided by the control voltage input terminal;
the first control circuit is electrically connected to at least two data voltage terminals, at least two scanning terminals, and N switch control terminals, and is configured to control a switch control signal provided to the switch control terminal under the control of a scanning signal provided by the scanning terminal according to a data voltage provided by the data voltage terminal; N is an integer greater than 1;
the switch control circuit includes N switch control terminals, N light emitting control voltage terminals and N switch control sub-circuits; n is a positive integer less than or equal to N;
an nth switch control sub-circuit is electrically connected to an nth switch control terminal, an nth light emitting control voltage terminal and the control voltage input terminal respectively, and is configured to control to connect the nth light emitting control voltage terminal and the control voltage input terminal under the control of an nth switch control signal provided by the nth switch control terminal.