US 11,862,084 B2
Pixel circuit, driving method, display substrate and display device
Erlong Song, Beijing (CN); Kai Zhang, Beijing (CN); Xingrui Cai, Beijing (CN); Yagui Gao, Beijing (CN); Hailong Yan, Beijing (CN); Xinyu Wei, Beijing (CN); and Qiang Fu, Beijing (CN)
Assigned to Chengdu BOE Optoelectronics Technology Co., Ltd., Sichuan (CN); and BOE Technology Group Co., Ltd., Beijing (CN)
Appl. No. 17/434,709
Filed by Chengdu BOE Optoelectronics Technology Co., Ltd., Sichuan (CN); and BOE Technology Group Co., Ltd., Beijing (CN)
PCT Filed Nov. 30, 2020, PCT No. PCT/CN2020/132711
§ 371(c)(1), (2) Date Aug. 27, 2021,
PCT Pub. No. WO2022/110124, PCT Pub. Date Jun. 2, 2022.
Prior Publication US 2023/0162674 A1, May 25, 2023
Int. Cl. G09G 3/3233 (2016.01); G09G 3/20 (2006.01)
CPC G09G 3/3233 (2013.01) [G09G 3/2007 (2013.01); G09G 2300/0408 (2013.01); G09G 2300/0819 (2013.01); G09G 2300/0842 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A display substrate, comprising a base substrate and a pixel circuit on the base substrate, wherein the pixel circuit comprises a driving circuit, a first light-emitting control circuit, a light-emitting element, a first initialization circuit, and a second initialization circuit;
wherein the driving circuit is configured to generate, under the control of a control terminal of the driving circuit, a driving current for driving the light-emitting element, and a cathode of the light-emitting element is electrically connected to a first voltage line;
wherein the first light-emitting control circuit is electrically connected to a light-emitting control line, the driving circuit, and an anode of the light-emitting element, and is configured to control, under the control of a light-emitting control signal provided by the light-emitting control line, the driving circuit to be connected to or disconnected from the anode of the light-emitting element;
wherein the first initialization circuit is electrically connected to a first initialization control line, the control terminal of the driving circuit, and an initialization voltage line, and is configured to write, under the control of a first initialization control signal provided by the first initialization control line, an initialization voltage provided by the initialization voltage line, to the control terminal of the driving circuit;
wherein the second initialization circuit is electrically connected to a second initialization control line, the anode of the light-emitting element, and an initial data line, and is configured to write, under the control of a second initialization control signal provided by the second initialization control line, an initial data voltage provided by the initial data line, to the anode of the light-emitting element; and
the pixel circuit comprises a driving transistor and a storage capacitor, and the display substrate further comprises an initial data line on the base substrate;
wherein a gate electrode of the driving transistor is further used as a first electrode plate of the storage capacitor;
wherein the initial data line and the gate electrode of the driving transistor are in a same layer and are made of a same material, or, the initial data line and a second electrode plate of the storage capacitor are in a same layer and are made of a same material.