US 12,274,127 B2
Array substrate and manufacturing method therefor, display panel, and display device
Dongni Liu, Beijing (CN); Minghua Xuan, Beijing (CN); Haoliang Zheng, Beijing (CN); and Jiao Zhao, Beijing (CN)
Assigned to BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
Appl. No. 17/615,058
Filed by BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
PCT Filed Feb. 24, 2021, PCT No. PCT/CN2021/077721
§ 371(c)(1), (2) Date Nov. 29, 2021,
PCT Pub. No. WO2021/170005, PCT Pub. Date Sep. 2, 2021.
Claims priority of application No. 202010131149.9 (CN), filed on Feb. 28, 2020.
Prior Publication US 2022/0231105 A1, Jul. 21, 2022
Int. Cl. H10K 59/121 (2023.01); H10K 59/131 (2023.01); H10K 59/30 (2023.01); H10K 59/12 (2023.01)
CPC H10K 59/1213 (2023.02) [H10K 59/1216 (2023.02); H10K 59/131 (2023.02); H10K 59/30 (2023.02); H10K 59/1201 (2023.02)] 16 Claims
OG exemplary drawing
 
1. An array substrate configured to carry a plurality of light emitting units with different light emitting colors, the array substrate comprising:
a plurality of pixel driving circuits including at least one first driving circuit and at least one second driving circuit, a first driving circuit in the at least one first driving circuit and two second driving circuits in the at least one second driving circuit being configured to drive light emitting units with different light emitting colors, respectively, wherein each light emitting unit has a first electrode and a second electrode, and the first driving circuit and the two second driving circuits are respectively coupled to first electrodes of the light emitting units with the different light emitting colors;
a first voltage input line coupled to the at least one first driving circuit and configured to transmit a first voltage to the at least one first driving circuit;
a second voltage input line coupled to the at least one second driving circuit and configured to transmit a second voltage to the at least one second driving circuit, the first voltage being different from the second voltage; and
a common voltage input line coupled to second electrodes of the plurality of light emitting units with the different light emitting colors and configured to transmit a set voltage to the second electrodes of the plurality of light emitting units with the different light emitting colors;
wherein the plurality of light emitting units include at least one red light emitting unit, at least one green light emitting unit and at least one blue light emitting unit;
the first driving circuit is configured to drive a red light emitting unit in the at least one red light emitting unit, one second driving circuit of the two second driving circuits is configured to drive a green light emitting unit in the at least one green light emitting unit, and another second driving circuit of the two second driving circuits is configured to a blue light emitting unit in the at least one blue light emitting unit; and
a voltage difference between the first voltage and the set voltage is greater than a voltage difference between the second voltage and the set voltage.