US 12,223,906 B2
Pixel circuit, driving method and display device
Libin Liu, Beijing (CN); Shiming Shi, Beijing (CN); Xiyu Zhao, Beijing (CN); Yu Feng, Beijing (CN); and Li Wang, Beijing (CN)
Assigned to BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
Appl. No. 17/788,725
Filed by BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
PCT Filed Jul. 30, 2021, PCT No. PCT/CN2021/109889
§ 371(c)(1), (2) Date Jun. 23, 2022,
PCT Pub. No. WO2023/004812, PCT Pub. Date Feb. 2, 2023.
Prior Publication US 2024/0169904 A1, May 23, 2024
Int. Cl. G09G 3/3258 (2016.01); G09G 3/3225 (2016.01); H10K 59/121 (2023.01)
CPC G09G 3/3258 (2013.01) [G09G 3/3225 (2013.01); H10K 59/1213 (2023.02); G09G 2300/0452 (2013.01); G09G 2300/0819 (2013.01); G09G 2300/0842 (2013.01); G09G 2300/0852 (2013.01); G09G 2310/062 (2013.01); G09G 2310/08 (2013.01); G09G 2320/0233 (2013.01); G09G 2320/0247 (2013.01); G09G 2320/045 (2013.01); G09G 2330/021 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A pixel circuit, comprising a driving circuit, a first control circuit, a compensation control circuit and a first initialization circuit; wherein
the first control circuit is respectively electrically connected to a first scan line, a control end of the driving circuit and a connection node, and is configured to control to connect the control end of the driving circuit and the connection node under the control of a first scan signal provided by the first scan line;
the compensation control circuit is respectively electrically connected to a second scan line, the connection node and a first end of the driving circuit, and is configured to control to connect the connection node and the first end of the driving circuit under the control of a second scan signal provided by the second scan line;
the first initialization circuit is electrically connected to an initialization control line, a first initialization voltage line and the connection node, respectively, and is configured to write a first initialization voltage provided by the first initialization voltage line into the connection node under the control of an initialization control signal provided by the initialization control line;
the driving circuit is configured to control to connect the first end of the driving circuit and a second end of the driving circuit under the control of a potential of the control end of the driving circuit;
the pixel circuit further comprises a reset circuit; wherein
the reset circuit is electrically connected to a third scan line, a reset voltage line and the second end of the driving circuit respectively, and is configured to write a reset voltage provided by the reset voltage line into the second end of the driving circuit under the control of a third scan signal provided by the third scan line;
wherein the reset voltage line and a first voltage line are a same voltage line, and a voltage value of the reset voltage is greater than a voltage value of the first initialization voltage.