US 11,723,230 B2
Display panel
Yoonsun Choi, Yongin-si (KR); Hyunchul Kim, Yongin-si (KR); Seongryong Lee, Yongin-si (KR); Eunae Jung, Yongin-si (KR); and Wonsuk Choi, Yongin-si (KR)
Assigned to SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed by Samsung Display Co., Ltd., Yongin-si (KR)
Filed on Oct. 1, 2021, as Appl. No. 17/491,887.
Application 17/491,887 is a continuation of application No. 16/441,846, filed on Jun. 14, 2019, granted, now 11,139,451.
Claims priority of application No. 10-2018-0144678 (KR), filed on Nov. 21, 2018.
Prior Publication US 2022/0020960 A1, Jan. 20, 2022
Int. Cl. H01L 51/52 (2006.01); G06F 3/041 (2006.01); G06F 3/042 (2006.01); H01L 27/32 (2006.01); H10K 50/844 (2023.01); H10K 59/40 (2023.01); H10K 59/122 (2023.01)
CPC H10K 50/844 (2023.02) [G06F 3/042 (2013.01); G06F 3/0412 (2013.01); H10K 59/122 (2023.02); H10K 59/40 (2023.02)] 14 Claims
OG exemplary drawing
 
1. A display panel, comprising:
a substrate having an opening in an opening area;
a plurality of pixel electrodes arranged in a display area, the display area surrounding the opening area;
an opposite electrode overlapping the plurality of pixel electrodes in the display area;
an intermediate layer between the plurality of pixel electrodes and the opposite electrode;
a groove in the first non-display area, the first non-display area being between the opening area and the display area, wherein at least one layer of the intermediate layer comprises portions separated by the groove; and
at least three inorganic insulating layers disposed on the portions of the at least one layer of the intermediate layer, wherein the at least three inorganic insulating layers comprise:
a first inorganic insulating layer overlapping the portions of the at least one layer of the intermediate layer,
a second inorganic insulating layer on the first inorganic insulating layer; and
a third inorganic insulating layer on the second inorganic insulating layer, and
wherein:
the third inorganic insulating layer is in direct contact with the second inorganic insulating layer at a region corresponding to a first portion, among the portions of the at least one layer, which is disposed on a bottom surface of the grove, and
the second inorganic insulating layer is in-direct contact with the first inorganic insulating layer at the region.