US 12,148,375 B2
Pixel circuit, driving method and display device
Benlian Wang, Beijing (CN); Chengjie Qin, Beijing (CN); Cong Liu, Beijing (CN); Yao Huang, Beijing (CN); Yue Long, Beijing (CN); and Weiyun Huang, Beijing (CN)
Assigned to Chengdu BOE Optoelectronics Technology Co., Ltd., Sichuan (CN); and BOE Technology Group Co., Ltd., Beijing (CN)
Appl. No. 17/800,672
Filed by Chengdu BOE Optoelectronics Technology Co., Ltd., Sichuan (CN); and BOE Technology Group Co., Ltd., Beijing (CN)
PCT Filed Sep. 18, 2021, PCT No. PCT/CN2021/119407
§ 371(c)(1), (2) Date Aug. 18, 2022,
PCT Pub. No. WO2023/039893, PCT Pub. Date Mar. 23, 2023.
Prior Publication US 2024/0221642 A1, Jul. 4, 2024
Int. Cl. G09G 3/3233 (2016.01)
CPC G09G 3/3233 (2013.01) [G09G 2310/0243 (2013.01); G09G 2320/0257 (2013.01); G09G 2330/04 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A pixel circuit, comprising a light-emitting element, a driving circuit, a first light-emitting control circuit, a first control circuit, a first initialization circuit and a second light-emitting control circuit, wherein,
the first control circuit is electrically connected to a first scan line, a first node and a control node respectively, and is configured to control to connect the first node and the control node under the control of a first scan signal provided by the first scan line;
the first initialization circuit is respectively electrically connected to a second light-emitting control line, a first initial voltage terminal and the control node, and is configured to write a first initial voltage provided by the first initial voltage terminal into the control node under the control of a second light-emitting control signal provided by the second light-emitting control line;
the first light-emitting control circuit is respectively electrically connected to the second light-emitting control line, a power supply voltage terminal and a second node, and is configured to control to connect the power supply voltage terminal and the second node under the control of the second light-emitting control signal;
the second light-emitting control circuit is respectively electrically connected to the first light-emitting control line, a third node and a first electrode of the light-emitting element, and is configured to control to connect the third node and the first electrode of the light-emitting element under the control of the first light-emitting control signal provided by the first light-emitting control line;
a control end of the driving circuit is electrically connected to the first node, a first end of the driving circuit is electrically connected to the second node, a second end of the driving circuit is electrically connected to the third node, the driving circuit is configured to control to connect the second node and the third node under the control of a potential of the first node;
a second electrode of the light-emitting element is electrically connected to a first voltage terminal.