US 12,446,395 B2
Display panel, display apparatus, and manufacturing method for display panel
Kangjian Miao, Beijing (CN); and Minghung Hsu, Beijing (CN)
Assigned to Hefei BOE Joint Technology Co., Ltd., Anhui (CN); and Beijing BOE Technology Development Co., Ltd., Beijing (CN)
Appl. No. 17/788,558
Filed by Hefei BOE Joint Technology Co., Ltd., Anhui (CN); and BOE Technology Group Co., Ltd., Beijing (CN)
PCT Filed Sep. 1, 2021, PCT No. PCT/CN2021/115919
§ 371(c)(1), (2) Date Jun. 23, 2022,
PCT Pub. No. WO2022/088948, PCT Pub. Date May 5, 2022.
Claims priority of application No. 202011165747.4 (CN), filed on Oct. 27, 2020.
Prior Publication US 2023/0032598 A1, Feb. 2, 2023
Int. Cl. H10K 50/824 (2023.01); H10K 50/805 (2023.01); H10K 50/828 (2023.01); H10K 50/856 (2023.01); H10K 59/12 (2023.01); H10K 59/122 (2023.01); H10K 59/80 (2023.01); H10K 71/00 (2023.01)
CPC H10K 50/824 (2023.02) [H10K 50/805 (2023.02); H10K 50/828 (2023.02); H10K 50/856 (2023.02); H10K 59/122 (2023.02); H10K 59/805 (2023.02); H10K 71/00 (2023.02); H10K 59/1201 (2023.02)] 14 Claims
OG exemplary drawing
 
1. A display panel, comprising:
a base substrate;
a pixel defining layer comprising:
a plurality of opening regions; and
dams surrounding the opening regions;
wherein the dams comprise:
first surfaces, and
second surfaces opposite to the first surfaces;
wherein the first surfaces are parallel to the second surfaces and are closer to the base substrate than the second surfaces;
light-emitting portions in the opening regions;
an electrode layer, located on one sides of the light-emitting portions facing away from the base substrate and comprising:
first portions in the opening regions;
second portions in a region where the dams are located; and
third portions connecting the first portions and the second portions;
a metal repelling portion, located on one side of the electrode layer facing away from the base substrate and located in the opening regions; and
an auxiliary electrode layer, located on one side of the pixel defining layer facing away from the base substrate and comprising:
auxiliary electrode portions in the region where the dams are located; and
extension portions extending from the auxiliary electrode portions and covering a part of the third portions;
wherein the auxiliary electrode portions are in contact with the second portions of the electrode layer; an orthographic projection of the extension portions on the base substrate does not overlap with an orthographic projection of at least part of the first portions on the base substrate;
wherein a material of the metal repelling portion and a material of the auxiliary electrode layer repel with each other, so that the auxiliary electrode layer forms a film in a region outside a region where the metal repelling portion is located;
orthographic projections of the second surfaces of dams on the base substrate does not overlap with orthographic projections of the light-emitting portions on the base substrate and an orthographic projection of the metal repelling portion on the base substrate.