US 11,895,876 B2
Display panel including an open area for a component and a plurality of grooves provided in a multi-layered film with a step difference adjacent to the open area, and a display apparatus including the same
Wonsuk Choi, Yongin-si (KR); Hyunchul Kim, Yongin-si (KR); Seongryong Lee, Yongin-si (KR); Eunae Jung, Yongin-si (KR); and Yoonsun Choi, Yongin-si (KR)
Assigned to SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed by SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed on Mar. 14, 2022, as Appl. No. 17/693,747.
Application 17/693,747 is a continuation of application No. 16/872,696, filed on May 12, 2020, granted, now 11,276,738.
Claims priority of application No. 10-2019-0055836 (KR), filed on May 13, 2019.
Prior Publication US 2022/0199723 A1, Jun. 23, 2022
Int. Cl. H01L 29/08 (2006.01); H10K 59/124 (2023.01); H10K 50/844 (2023.01); H10K 59/122 (2023.01); H10K 59/121 (2023.01)
CPC H10K 59/124 (2023.02) [H10K 50/844 (2023.02); H10K 59/122 (2023.02); H10K 59/1213 (2023.02); H10K 59/1216 (2023.02)] 23 Claims
OG exemplary drawing
 
1. A display panel comprising:
a substrate comprising a first area, a second area, and a third area between the first area and the second area;
a first structure located in the second area and comprising a pixel electrode, an opposite electrode, an intermediate layer between the pixel electrode and the opposite electrode, and at least one organic material layer; and
a plurality of grooves located in the third area and separating the at least one organic material layer and the opposite electrode,
wherein a first groove of the plurality of grooves is provided in a multi-layered film comprising a lower layer and an upper layer,
wherein the upper layer comprises an inorganic material layer and tips protruding toward a center of the first groove, and
wherein an undercut structure is between each of the tips and the lower layer, and a width of the undercut structure is greater than a width of a hole or a recess in the lower layer.