US 11,869,413 B2
Pixel circuit, array substrate comprising the same and display panel
Ning Cong, Beijing (CN); Minghua Xuan, Beijing (CN); Han Yue, Beijing (CN); Ming Yang, Beijing (CN); Xiaochuan Chen, Beijing (CN); Can Zhang, Beijing (CN); Can Wang, Beijing (CN); Liang Chen, Beijing (CN); and Detao Zhao, Beijing (CN)
Assigned to BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
Filed by BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
Filed on Feb. 25, 2022, as Appl. No. 17/652,660.
Application 17/652,660 is a continuation of application No. 16/610,007, granted, now 11,315,479, previously published as PCT/CN2019/075026, filed on Feb. 14, 2019.
Claims priority of application No. 201810685556.7 (CN), filed on Jun. 28, 2018.
Prior Publication US 2022/0180802 A1, Jun. 9, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. G09G 3/32 (2016.01)
CPC G09G 3/32 (2013.01) [G09G 2300/0452 (2013.01); G09G 2310/0205 (2013.01); G09G 2310/0267 (2013.01); G09G 2310/0286 (2013.01); G09G 2310/08 (2013.01); G09G 2320/0233 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A pixel circuit comprising: a first switching sub-circuit, a second switching sub-circuit, a gray scale control sub-circuit, a driving sub-circuit and a light-emitting element,
wherein the first switching sub-circuit is electrically connected with a data line and the gray scale control sub-circuit, the first switching sub-circuit is further connected with a first gate line or a second gate line, the first switching sub-circuit is configured to transmit a data voltage from the data line to the gray scale control sub-circuit under control of a scanning signal from the first gate line or the second gate line,
wherein the gray scale control sub-circuit is further electrically connected with an anode of the light-emitting element and the driving sub-circuit, the gray scale control sub-circuit is configured to control a duration during which the driving sub-circuit is electrically connected with the light-emitting element based on the data voltage,
wherein the driving sub-circuit is electrically connected with a first operation voltage terminal to receive a first voltage from the first operation voltage terminal,
wherein the second switching sub-circuit is electrically connected with a second voltage terminal, the driving sub-circuit and a third gate line, the second switching sub-circuit is configured to transmit a second voltage from the second voltage terminal to the driving sub-circuit under control of a control signal from the third gate line,
wherein a cathode of the light-emitting element is electrically connected with a second operation voltage terminal, the driving sub-circuit is configured to provide a constant driving current to the light-emitting element under control of the second voltage from the second voltage terminal, and the light-emitting element is configured to emit light based on the driving current,
wherein the first switching sub-circuit comprises a first transistor, a gate of the first transistor is electrically connected with the first gate line or the second gate line, a first terminal of the first transistor is electrically connected to the data line, and a second terminal of the first transistor is electrically connected to the gray scale control sub-circuit.