US 12,484,418 B2
Display panel and manufacturing method thereof
Weiran Cao, Guangdong (CN); Jinchuan Li, Guangdong (CN); and Zhijun Wan, Guangdong (CN)
Assigned to SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD., Guangdong (CN)
Appl. No. 17/755,042
Filed by SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD., Guangdong (CN)
PCT Filed Apr. 15, 2022, PCT No. PCT/CN2022/087061
§ 371(c)(1), (2) Date Apr. 19, 2022,
PCT Pub. No. WO2023/184596, PCT Pub. Date Oct. 5, 2023.
Claims priority of application No. 202210349154.6 (CN), filed on Apr. 1, 2022.
Prior Publication US 2024/0188384 A1, Jun. 6, 2024
Int. Cl. H10K 59/80 (2023.01); H10K 71/00 (2023.01)
CPC H10K 59/873 (2023.02) [H10K 71/621 (2023.02)] 12 Claims
OG exemplary drawing
 
1. A display panel comprising:
a substrate;
an inorganic layer, the inorganic layer disposed on the substrate;
a photoresist layer, the photoresist layer disposed on a side of the inorganic layer away from the substrate;
a packaging layer, the packaging layer disposed on a side of the photoresist layer away from the substrate; and
at least one groove, the at least one groove comprising a first groove part penetrating the photoresist layer and a second groove part penetrating the inorganic layer, wherein an orthographic projection of the second groove part on the substrate covers an orthographic projection of the first groove part on the substrate, and wherein a groove diameter of the second groove part away from the substrate is greater than a groove diameter of the first groove part close to the second groove part;
wherein a side of the first groove part close to the substrate is provided with a first opening, a side of the second groove part away from the substrate is provided with a second opening, the first opening is located above the second opening and communicated with the second opening, a diameter of the first opening is smaller than a diameter of the second opening, and the packaging layer is in contact with an inner wall of the first groove part and is disconnected at the first opening.