US 12,302,709 B2
Display device, display panel, and manufacturing method therefor
Yang Yu, Beijing (CN); Fangxu Cao, Beijing (CN); Pinfan Wang, Beijing (CN); Wenqiang Li, Beijing (CN); Bo Wang, Beijing (CN); and Jingquan Wang, Beijing (CN)
Assigned to BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
Appl. No. 17/781,056
Filed by BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
PCT Filed May 20, 2021, PCT No. PCT/CN2021/094920
§ 371(c)(1), (2) Date May 31, 2022,
PCT Pub. No. WO2022/001466, PCT Pub. Date Jan. 6, 2022.
Claims priority of application No. 202010610179.8 (CN), filed on Jun. 29, 2020.
Prior Publication US 2022/0415982 A1, Dec. 29, 2022
Int. Cl. H10K 59/122 (2023.01); H10K 50/844 (2023.01); H10K 59/12 (2023.01); H10K 59/35 (2023.01); H10K 71/00 (2023.01); H10K 77/10 (2023.01); H10K 102/00 (2023.01)
CPC H10K 59/122 (2023.02) [H10K 50/844 (2023.02); H10K 71/00 (2023.02); H10K 59/1201 (2023.02); H10K 59/35 (2023.02); H10K 77/111 (2023.02); H10K 2102/311 (2023.02)] 19 Claims
OG exemplary drawing
 
1. A display panel, comprising:
a flexible substrate;
a display layer, on one side the flexible substrate, having a stretching area, and comprising a pixel definition layer and a blocking dam, the blocking dam being in an annulus shape on a surface of the pixel definition layer away from the flexible substrate, wherein
a plurality of pixel islands spaced apart and a through-hole between two pixel islands are in the stretching area;
the pixel definition layer defines a plurality of light-emitting units; and
the blocking dam is in an area of the pixel definition layer corresponding to one of the plurality of pixel islands and surrounding more than one light-emitting unit of the plurality of light-emitting units; and
an encapsulation layer covering a surface of the display layer away from the flexible substrate and comprising an organic layer, wherein
a portion of the organic layer in the stretching area is confined within an annular area surrounded by the blocking dam;
wherein the display layer further comprises:
a drive layer between the flexible substrate and the pixel definition layer;
a first electrode layer on a surface of the drive layer away from the flexible substrate and comprising at least a plurality of first electrodes, wherein more than one first electrode of the plurality of first electrodes is in the stretching area, and the pixel definition layer has a plurality of openings for exposing the plurality of first electrodes;
a light-emitting material layer filled within the plurality of openings and in contact with the plurality of first electrodes; and
a second electrode layer covering the pixel definition layer, the light-emitting material layer, and the blocking dam, raised in an area corresponding to the blocking dam in a direction away from the drive layer to form a rib being in an annulus shape, wherein the portion of the organic layer in the stretching area is confined within an annular area surrounded by the rib.