US 12,073,788 B2
Pixel circuit, display substrate, display panel, and display device
Pinchao Gu, Beijing (CN); Weiyun Huang, Beijing (CN); Yudiao Cheng, Beijing (CN); and Chao Wu, Beijing (CN)
Assigned to CHENGDU BOEOPTOELECTRONICS TECHNOLOGY CO., LTD., Sichuan (CN); and BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
Appl. No. 17/772,594
Filed by CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., Sichuan (CN); and BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
PCT Filed May 17, 2021, PCT No. PCT/CN2021/094026
§ 371(c)(1), (2) Date Apr. 28, 2022,
PCT Pub. No. WO2022/001419, PCT Pub. Date Jan. 6, 2022.
Claims priority of application No. 202010606662.9 (CN), filed on Jun. 29, 2020.
Prior Publication US 2022/0406257 A1, Dec. 22, 2022
Int. Cl. G09G 3/3241 (2016.01); G09G 3/3291 (2016.01)
CPC G09G 3/3241 (2013.01) [G09G 3/3291 (2013.01); G09G 2300/0426 (2013.01); G09G 2320/0233 (2013.01); G09G 2330/028 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A pixel circuit, comprising: a first driving circuit, a second driving circuit, a first light-emitting control circuit, a second light-emitting control circuit, a storage circuit, and a data writing circuit,
wherein the first light-emitting control circuit is electrically connected to a first power line, the first driving circuit, and a light-emitting element, and is configured to control a connection between the first driving circuit and the light-emitting element to be turned on or off and to control a connection between the first driving circuit and the first power line to be turned on or off;
the second light-emitting control circuit is electrically connected to a second power line, the second driving circuit, and the light-emitting element, and is configured to control a connection between the second driving circuit and the light-emitting element to be turned on or off and to control a connection between the second driving circuit and the second power line to be turned on or off;
the data writing circuit is electrically connected to the first driving circuit, and is configured to write a data voltage into the first driving circuit;
the first driving circuit and the second driving circuit are configured to control a driving current for driving the light-emitting element to emit light based on a same data voltage; and
the storage circuit is electrically connected to a control terminal of the first driving circuit and a control terminal of the second driving circuit, and is configured to maintain a voltage of the control terminal of the first driving circuit and a voltage of the control terminal of the second driving circuit;
wherein the pixel circuit further comprises a first initialization circuit and a second initialization circuit,
wherein the first initialization circuit is electrically connected to the control terminal of the first driving circuit and the control terminal of the second driving circuit, and is configured to initialize the control terminal of the first driving circuit and the control terminal of the second driving circuit; and
the second initialization circuit is electrically connected to a first electrode of the light-emitting element and is configured to initialize the first electrode of the light-emitting element.