US 12,462,750 B2
Pixel circuit and display panel
Huanxi Zhang, Hubei (CN)
Assigned to Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd., Wuhan (CN)
Appl. No. 18/561,001
Filed by Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd., Hubei (CN)
PCT Filed Jun. 30, 2023, PCT No. PCT/CN2023/104624
§ 371(c)(1), (2) Date Nov. 15, 2023,
PCT Pub. No. WO2024/103784, PCT Pub. Date May 23, 2024.
Claims priority of application No. 202211417159.4 (CN), filed on Nov. 14, 2022.
Prior Publication US 2025/0095573 A1, Mar. 20, 2025
Int. Cl. G09G 3/3233 (2016.01); G09G 3/32 (2016.01)
CPC G09G 3/3233 (2013.01) [G09G 3/32 (2013.01); G09G 2300/0426 (2013.01); G09G 2300/0842 (2013.01); G09G 2310/08 (2013.01); G09G 2320/0233 (2013.01); G09G 2320/0242 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A pixel circuit, comprising:
a driving transistor, having a first electrode electrically connected to a first power line;
a light-emitting device, having an anode electrically connected to a second electrode of the driving transistor, and a cathode electrically connected to a second power line;
a feedback transistor, having a gate electrically connected to a first control line; and
a feedback capacitor;
wherein the feedback capacitor and the feedback transistor are connected in series between the gate of the driving transistor and the anode of the light-emitting device;
wherein one terminal of the feedback capacitor is electrically connected to a first initialization line, and the first initialization line receives a first initialization signal; another terminal of the feedback capacitor is electrically connected to a second initialization line, and the second initialization line receives a second initialization signal; the feedback transistor is connected in series between the feedback capacitor and the first initialization line or the second initialization line; and a voltage level of the first initialization signal is different from a voltage level of the second initialization signal.