US 12,453,250 B2
Display device, display panel and manufacturing method thereof
Kuanta Huang, Beijing (CN); Yuhao Lee, Beijing (CN); Dacheng Zhang, Beijing (CN); Hui Tong, Beijing (CN); Xiaobin Shen, Beijing (CN); Shipeng Li, Beijing (CN); Chao Yang, Beijing (CN); and Dongsheng Li, Beijing (CN)
Assigned to BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
Filed by BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
Filed on Jun. 16, 2023, as Appl. No. 18/336,883.
Application 18/336,883 is a continuation of application No. 17/428,326, granted, now 12,317,689, previously published as PCT/CN2021/088701, filed on Apr. 21, 2021.
Application 17/428,326 is a continuation of application No. PCT/CN2020/085955, filed on Apr. 21, 2020.
Prior Publication US 2023/0337473 A1, Oct. 19, 2023
Int. Cl. H10K 59/122 (2023.01); H10K 50/844 (2023.01); H10K 59/80 (2023.01); H10K 71/00 (2023.01)
CPC H10K 59/122 (2023.02) [H10K 50/844 (2023.02); H10K 59/80521 (2023.02); H10K 59/873 (2023.02); H10K 71/00 (2023.02)] 20 Claims
OG exemplary drawing
 
1. A display panel, comprising:
a substrate;
a first insulation layer, located on a side of the substrate, wherein the first insulation layer comprises a plurality of pixel regions distributed in an array and a separation region for separating the plurality of pixel regions;
a first electrode layer, located on a surface of the first insulation layer away from the substrate and comprising a plurality of first electrodes, wherein an orthographic projection on the first insulation layer of each of the first electrodes is located in a respective pixel region;
a pixel definition layer, located on the surface of the first insulation layer away from the substrate and exposing each of the first electrodes, wherein the pixel definition layer is formed with a pixel definition groove in a region corresponding to the separation region, the pixel definition groove comprises a bottom wall and side walls located at sides of the bottom wall, the bottom wall comprises a curved surface being convex in a direction away from the substrate, the pixel definition groove further comprises a bottom surface closest to the substrate, and a first maximum distance between the bottom wall and the bottom surface of the pixel definition groove is smaller than a second maximum distance between the side walls and the bottom surface of the pixel definition groove;
a light-emitting functional layer, covering the pixel definition layer and the first electrodes exposed by the pixel definition layer; and
a second electrode, covering the light-emitting function layer,
wherein the pixel definition layer is continuous at the pixel definition groove.