US 11,727,881 B2
Pixel circuit and display panel
Yong Chen, Wuhan (CN); Jun Li, Wuhan (CN); and Liang Sun, Wuhan (CN)
Assigned to Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd., Wuhan (CN)
Appl. No. 16/957,113
Filed by Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd., Wuhan (CN)
PCT Filed Apr. 15, 2020, PCT No. PCT/CN2020/084823
§ 371(c)(1), (2) Date Jun. 23, 2020,
PCT Pub. No. WO2021/184472, PCT Pub. Date Sep. 23, 2021.
Claims priority of application No. 202010198216.9 (CN), filed on Mar. 19, 2020.
Prior Publication US 2023/0121173 A1, Apr. 20, 2023
Int. Cl. G09G 3/30 (2006.01); G09G 3/3241 (2016.01); G09G 3/3266 (2016.01); G09G 3/3291 (2016.01)
CPC G09G 3/3241 (2013.01) [G09G 3/3266 (2013.01); G09G 3/3291 (2013.01); G09G 2300/0876 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A pixel circuit, comprising:
a data line configured to transmit a source data signal;
a scan line configured to transmit a scan signal;
a plurality of hierarchical 2 transistors and 1 storage capacitor (2T1C) circuits, each input thereof is connected to the scan line in parallel;
a step-down circuit comprising an input connected to the data line and an output connected to the input of each 2T1C circuit;
a reset circuit connected to the output of the step-down circuit; and
a voltage stabilizing capacitor comprising an end electrically connected to a positive power supply voltage and another end electrically connected to the input of the 2T1C circuit, wherein the voltage stabilizing capacitor is configured to stabilize a voltage input to the 2T1C circuit.