US 11,776,453 B2
Display Substrate Including Pixel Circuit Receiving Initial Voltage And First Power Supply Voltage To Turn On Driving Module And Driving Method Thereof, And Display Apparatus
Xilei Cao, Beijing (CN)
Assigned to Chengdu BOE Optoelectronics Technology Co., Ltd., Chengdu (CN); and BOE Technology Group Co., Ltd., Beijing (CN)
Filed by Chengdu BOE Optoelectronics Technology Co., Ltd., Sichuan (CN); and BOE Technology Group Co., Ltd., Beijing (CN)
Filed on Apr. 15, 2021, as Appl. No. 17/231,019.
Claims priority of application No. 202011080088.4 (CN), filed on Oct. 10, 2020.
Prior Publication US 2022/0114943 A1, Apr. 14, 2022
Int. Cl. G09G 3/20 (2006.01); G09G 3/3291 (2016.01); G09G 3/3258 (2016.01)
CPC G09G 3/2092 (2013.01) [G09G 3/3258 (2013.01); G09G 3/3291 (2013.01); G09G 2310/061 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A display substrate, comprising a substrate, a light shielding layer, an active layer, a first gate layer, a source-drain layer and a second gate layer, wherein the display substrate further comprises a plurality of pixel units disposed in an array, wherein each of the plurality of pixel units comprises a pixel circuit, and the pixel circuit comprises a light-emitting element, a voltage providing module, a voltage writing-in module and a driving module; wherein
the voltage providing module is respectively connected with a first power supply voltage terminal, an initial voltage terminal, a reset signal terminal, a light-emitting control terminal, the voltage writing-in module and the driving module, and the voltage providing module is configured to provide a voltage of the first power supply voltage terminal and a voltage of the initial voltage terminal to the driving module under control of the reset signal terminal to turn on the driving module; and provide the voltage of the first power supply voltage terminal to the driving module under control of the light-emitting control terminal;
the voltage writing-in module is respectively connected with a signal terminal, a data input terminal, the initial voltage terminal, the voltage providing module, the driving module and the light-emitting element, and the voltage writing-in module is configured to write a data voltage into the driving module under control of the signal terminal;
the driving module is respectively connected with the voltage providing module and the voltage writing-in module, the driving module is separate from the voltage writing-in module, and the driving module is configured to provide a driving current to the light-emitting element, and
the first gate layer is connected with the light-emitting element, and the second gate layer is located above the first gate layer;
wherein the voltage providing module comprises a voltage supply module, the voltage supply module comprises a second transistor and a third transistor, and the second transistor and the third transistor share a source-drain layer.