US 12,446,443 B2
Display panel and display device
Kyungmin Kim, Yongin-si (KR); Junhyeong Park, Yongin-si (KR); and Jiyeon Seo, Yongin-si (KR)
Assigned to SAMSUNG DISPLAY CO., LTD., Gyeonggi-Do (KR)
Filed by Samsung Display Co., Ltd., Yongin-si (KR)
Filed on Nov. 2, 2022, as Appl. No. 17/979,387.
Claims priority of application No. 10-2021-0151664 (KR), filed on Nov. 5, 2021.
Prior Publication US 2023/0147646 A1, May 11, 2023
Int. Cl. H10K 50/844 (2023.01); H10K 59/131 (2023.01)
CPC H10K 50/844 (2023.02) [H10K 59/131 (2023.02)] 20 Claims
OG exemplary drawing
 
1. A display panel comprising:
a substrate comprising a first area including a display element layer, and a second area which is adjacent to the first area; and
on the substrate:
a lower pattern in the second area, the lower pattern comprising a center and a side surface which is spaced apart from the center;
an insulating layer in the first area and the second area, the insulating layer including a sidewall which defines an opening in the second area which exposes the side surface of the lower pattern to outside the insulating layer;
an upper pattern on the insulating layer and defining a tip protruding further than the sidewall of the insulating layer and toward the center of the lower pattern, the tip overlapping the side surface of the lower pattern;
the display element layer on the insulating layer and comprising a first electrode, an emission layer and a second electrode in order from the upper pattern; and
an inorganic encapsulation layer on the display element layer,
wherein the inorganic encapsulation layer is in direct contact with the lower pattern.