US 12,414,446 B2
Display substrate and method for manufacturing same, and display device
Zhiliang Jiang, Beijing (CN); and Pan Zhao, Beijing (CN)
Assigned to CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., Sichuan (CN); and BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
Filed by Chengdu BOE Optoelectronics Technology Co., Ltd., Sichuan (CN); and BOE Technology Group Co., Ltd., Beijing (CN)
Filed on Feb. 28, 2024, as Appl. No. 18/589,950.
Application 18/589,950 is a continuation of application No. 17/952,845, filed on Sep. 26, 2022, granted, now 11,956,988.
Application 17/952,845 is a continuation of application No. 16/958,949, granted, now 11,495,772, issued on Nov. 8, 2022, previously published as PCT/CN2019/091354, filed on Jun. 14, 2019.
Prior Publication US 2024/0206223 A1, Jun. 20, 2024
Int. Cl. H10K 50/842 (2023.01); H01L 23/00 (2006.01); H10K 50/844 (2023.01); H10K 59/12 (2023.01); H10K 59/124 (2023.01); H10K 59/80 (2023.01); H10K 71/00 (2023.01)
CPC H10K 59/124 (2023.02) [H01L 23/562 (2013.01); H10K 50/8426 (2023.02); H10K 50/844 (2023.02); H10K 59/8722 (2023.02); H10K 59/873 (2023.02); H10K 59/1201 (2023.02); H10K 71/00 (2023.02)] 19 Claims
OG exemplary drawing
 
1. A display substrate, comprising:
a base substrate with an encapsulation region and an edge region on a periphery of the encapsulation region, wherein the encapsulation region comprises a display region and a peripheral region surrounding the display region, and the edge region comprises a bonding region on at least one side of the base substrate;
a plurality of stacked inorganic film layers on a side of the base substrate;
a plurality of first grooves, at the edge region, spaced apart from each other in a direction distal from the encapsulation region, and extending along a periphery of the base substrate, wherein the plurality of first grooves run through at least one inorganic film layer of the plurality of stacked inorganic film layers, and orthographic projections of the plurality of first grooves on the base substrate have a non-overlapping region with the bonding region, and distances between the plurality of first grooves and the display region are larger than distances between the plurality of first grooves and an edge of the base substrate; and
an organic layer, covering the plurality of first grooves;
wherein the plurality of stacked inorganic film layers further comprise: a barrier layer, a buffer layer, a gate insulator layer, and an interlevel dielectric layer stacked along a direction distal from the base substrate, and the buffer layer comprises a first buffer pattern and a second buffer pattern;
wherein an orthographic projection of each first groove on the base substrate is of an annular shape with an opening; and
a width of the opening is greater than a width of the bonding region.