US 12,414,445 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. 18/336,196.
Application 18/336,196 is a continuation of application No. 17/428,326, 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 2023/0329044 A1, Oct. 12, 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 a plurality of separation grooves are provided on a surface of the first insulation layer away from the substrate for separating a plurality of pixel regions on the first insulation layer, the plurality of pixel regions are distributed in an array, each separation groove comprises two sidewalls opposite to each other and a bottom wall connected between the two sidewalls, and a contour of the bottom wall is a curved surface being convex in a direction away from the substrate, wherein the maximum distance between the curved surface and the substrate is smaller than the maximum distance between the substrate and the surface of the first insulation layer away from the substrate;
a first electrode layer, located on the 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;
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 each pixel region is surrounded by a respective separation groove.