US 12,225,778 B2
Display substrates and methods of manufacturing the same, display panels, and display apparatuses
Chinlung Liao, Beijing (CN)
Assigned to Hefei BOE Joint Technology Co., Ltd., Anhui (CN); and BOE Technology Group Co., Ltd., Beijing (CN)
Appl. No. 17/639,777
Filed by Hefei BOE Joint Technology Co., Ltd., Anhui (CN); and BOE Technology Group Co., Ltd., Beijing (CN)
PCT Filed Apr. 9, 2021, PCT No. PCT/CN2021/086112
§ 371(c)(1), (2) Date Mar. 2, 2022,
PCT Pub. No. WO2021/208810, PCT Pub. Date Oct. 21, 2021.
Claims priority of application No. 202010291659.2 (CN), filed on Apr. 14, 2020.
Prior Publication US 2022/0336552 A1, Oct. 20, 2022
Int. Cl. H10K 59/122 (2023.01); H10K 50/82 (2023.01); H10K 71/00 (2023.01); H10K 59/12 (2023.01)
CPC H10K 59/122 (2023.02) [H10K 50/82 (2023.02); H10K 71/00 (2023.02); H10K 59/1201 (2023.02)] 17 Claims
OG exemplary drawing
 
1. A display substrate, comprising:
a base substrate;
a plurality of light-emitting structures provided on the base substrate; and
a pixel definition layer provided on the base substrate and having a plurality of pixel openings, the pixel definition layer comprising a first definition layer and a second definition layer on the first definition layer, and the second definition layer being made of a conductive material, wherein the pixel definition layer further comprises a third definition layer located on the second definition layer and made of a hydrophobic material, and at least a portion of the second definition layer is exposed from the third definition layer,
wherein each of the plurality of light-emitting structures comprises a first electrode, a light-emitting material, and a second electrode, the first electrode is provided on the base substrate and located in a respective pixel opening, the light-emitting material is provided on the first electrode, and second electrodes of the plurality of light-emitting structures are provided on the light-emitting material and are structurally integrated, and the second electrodes cover the pixel definition layer and are electrically connected with the second definition layer.