US 11,984,074 B2
Pixel driving circuit, display panel, and display device
Liuqi Zhang, Shenzhen (CN)
Assigned to SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD, Shenzhen (CN)
Appl. No. 17/298,649
Filed by SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD., Shenzhen (CN)
PCT Filed Apr. 20, 2021, PCT No. PCT/CN2021/088341
§ 371(c)(1), (2) Date May 31, 2021,
PCT Pub. No. WO2022/205530, PCT Pub. Date Oct. 6, 2022.
Claims priority of application No. 202110347717.3 (CN), filed on Mar. 31, 2021.
Prior Publication US 2023/0351955 A1, Nov. 2, 2023
Int. Cl. G09G 3/3233 (2016.01); G09G 3/3291 (2016.01)
CPC G09G 3/3233 (2013.01) [G09G 3/3291 (2013.01); G09G 2300/0819 (2013.01); G09G 2310/061 (2013.01); G09G 2320/0233 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A pixel driving circuit, comprising:
a light-emitting device;
a driving transistor, disposed in series with the light-emitting device between a first voltage end and a second voltage end;
a first reset transistor, connected between a first reset voltage end and a gate electrode of the driving transistor;
a first capacitor, wherein a first end of the first capacitor is connected to the gate electrode of the driving transistor, and a second end of the first capacitor is connected to one of a source electrode or a drain electrode of the driving transistor;
a second capacitor, wherein a first end of the second capacitor is connected to the second end of the first capacitor, and a second end of the second capacitor is connected to the second voltage end;
a data transistor, wherein the data transistor is connected between a data voltage end and the gate electrode of the driving transistor; and
a third capacitor, wherein a first end of the third capacitor is connected to the gate electrode of the driving transistor, and a second end of the third capacitor is connected to one of a source electrode or a drain electrode of the data transistor.