US 12,262,622 B2
Display panel
Yuanqi Zhang, Beijing (CN); Ping Wen, Beijing (CN); Shun Zhang, Beijing (CN); Chang Luo, Beijing (CN); and Yi Zhang, 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., Beijing (CN); and BOE Technology Group Co., Ltd., Beijing (CN)
Filed on Dec. 16, 2021, as Appl. No. 17/552,692.
Claims priority of application No. 202110320467.4 (CN), filed on Mar. 25, 2021.
Prior Publication US 2022/0310714 A1, Sep. 29, 2022
Int. Cl. H10K 59/88 (2023.01); H10K 50/844 (2023.01); H10K 59/40 (2023.01); H10K 71/00 (2023.01)
CPC H10K 59/88 (2023.02) [H10K 50/844 (2023.02); H10K 59/40 (2023.02); H10K 71/00 (2023.02)] 15 Claims
OG exemplary drawing
 
1. A display panel, having an opening region, a display region, a first peripheral region, and a second peripheral region, the opening region being in the display region, the first peripheral region being on a side of the display region distal to the opening region, the second peripheral region being between the opening region and the display region, the display panel comprising:
a substrate;
a first barrier structure on the substrate, surrounding the display region, and in the first peripheral region;
a second barrier structure on the substrate, surrounding the opening region, and in the second peripheral region; and
a crack detection line on the substrate, wherein the crack detection line comprises a first portion and a second portion, the first portion surrounds the opening region and is in the second peripheral region, both ends of the first portion have a gap therebetween, the first portion of the crack detection line is on a side of the second barrier structure distal to the display region, both ends of the second portion are connected to both ends of the first portion, respectively, an orthogonal projection of the second portion on the substrate overlaps an orthogonal projection of the second barrier structure on the substrate, the second portion extends into the first peripheral region through the display region, and a height of a portion, which overlaps the second portion, of the second barrier structure is less than a height of the first barrier structure, and each height is a dimension in a direction perpendicular to the substrate;
wherein an angle between a sidewall of the portion of the second barrier structure overlapping the second portion and the substrate is an acute angle;
wherein the second barrier structure comprises at least two layer structures stacked together, and a layer structure of the at least two layer structures farther away from the substrate covers a layer structure of the at least two layer structures closer to the substrate; and
wherein a minimum distance, between a lower end of a sidewall of the layer structure of the at least two layer structures farther away from the substrate and a lower end of a sidewall of the layer structure of the at least two layer structures closer to the substrate, is greater than 5 μm.