US 12,108,633 B2
Display panel
Hyungjun Park, Yongin-si (KR); Wonkyu Kwak, Yongin-si (KR); and Jintae Jeong, Yongin-si (KR)
Assigned to Samsung Display Co., Ltd., Yongin-si (KR)
Filed by Samsung Display Co., Ltd., Yongin-si (KR)
Filed on Oct. 9, 2019, as Appl. No. 16/597,746.
Claims priority of application No. 10-2019-0006924 (KR), filed on Jan. 18, 2019; and application No. 10-2019-0053907 (KR), filed on May 8, 2019.
Prior Publication US 2020/0235180 A1, Jul. 23, 2020
Int. Cl. H10K 50/15 (2023.01); H10K 59/124 (2023.01); H10K 59/131 (2023.01); H10K 50/16 (2023.01); H10K 50/17 (2023.01)
CPC H10K 59/124 (2023.02) [H10K 59/131 (2023.02); H10K 50/15 (2023.02); H10K 50/16 (2023.02); H10K 50/17 (2023.02); H10K 50/171 (2023.02)] 36 Claims
OG exemplary drawing
 
1. A display panel comprising:
a substrate comprising a circular area in which a through hole is formed, a display area, and an intermediate area, the intermediate area being between the circular area and the display area;
a display element in the display area and comprising a pixel electrode, an opposite electrode, and an intermediate layer, the intermediate layer being between the pixel electrode and the opposite electrode;
a multi-layered film between the substrate and the pixel electrode and comprising an organic insulating layer and an inorganic layer disposed directly on a top surface of the organic insulating layer; and
at least one groove formed in the multi-layered film in the intermediate area entirely surrounded by the display area, wherein the at least one groove comprises:
a first hole defined in the inorganic layer, and
a second hole or a recess defined in the organic insulating layer,
the first hole being above the second hole or the recess and being less in width than the second hole or the recess,
wherein the circular area and the intermediate area are non-display areas that do not comprise the display element,
wherein the intermediate layer includes at least one organic material layer, and wherein:
in the display area, the at least one organic material layer is interposed between the pixel electrode and the opposite electrode,
in the intermediate area, the at least one organic material layer comprises first and second portions being separated from each other by the at least one groove, and
the first portion of the at least one organic material layer is on a top surface of the inorganic layer, and the second portion of the at least one organic material layer is on a bottom surface of the at least one groove.