US 11,985,840 B2
Display substrate, manufacturing method thereof and display device
Wei Liu, Beijing (CN); and Youngsuk Song, Beijing (CN)
Assigned to BOE Technology Group Co., Ltd., Beijing (CN)
Filed by BOE Technology Group Co., Ltd., Beijing (CN)
Filed on Jun. 19, 2021, as Appl. No. 17/352,274.
Claims priority of application No. 202010740410.5 (CN), filed on Jul. 28, 2020.
Prior Publication US 2022/0037616 A1, Feb. 3, 2022
Int. Cl. H10K 50/824 (2023.01); H10K 59/122 (2023.01); H10K 71/00 (2023.01); H10K 59/12 (2023.01); H10K 102/00 (2023.01); H10K 102/10 (2023.01)
CPC H10K 50/824 (2023.02) [H10K 59/122 (2023.02); H10K 71/00 (2023.02); H10K 59/1201 (2023.02); H10K 2102/00 (2023.02); H10K 2102/103 (2023.02)] 18 Claims
OG exemplary drawing
 
1. A display substrate comprising a pixel, wherein the display substrate further comprises:
a substrate;
a first auxiliary electrode, disposed on the substrate;
a second auxiliary electrode, disposed on the first auxiliary electrode and electrically connected to the first auxiliary electrode, the second auxiliary electrode comprising a first conductive layer, a second conductive layer, and a barrier layer, wherein the first conductive layer is disposed on a side of the first auxiliary electrode away from the substrate, the second conductive layer is disposed on a side of the first conductive layer away from the substrate, and the barrier layer is disposed on a side of the second conductive layer away from the substrate, an orthographic projection of the second conductive layer on the substrate is located within an orthographic projection of the first conductive layer on the substrate, and the orthographic projection of the second conductive layer on the substrate is located within an orthographic projection of the barrier layer on the substrate; and
a first electrode, electrically connected to the second auxiliary electrode, the first electrode comprising a first conductive portion and a second conductive portion that are connected to each other, the first conductive portion disposed on the first conductive layer and extending along a surface of the first conductive layer away from the substrate, the second conductive portion contacting a side surface of the second conductive layer and extending vertically along the side surface of the second conductive layer, wherein the first electrode is a cathode of the pixel;
wherein the second auxiliary electrode further comprises an organic layer disposed between the second conductive layer and the barrier layer, wherein an orthographic projection of the organic layer on the substrate is located within the orthographic projection of the first conductive layer on the substrate, and the orthographic projection of the organic layer on the substrate is located within the orthographic projection of the barrier layer on the substrate;
wherein the second conductive portion extends along the side surface of the second conductive layer, exceeds a height of an upper surface of the second conductive layer, and extends to a side surface of the organic layer.