US 11,930,657 B2
Display apparatus having substrate hole
Daegyu Jo, Goyang-si (KR); and SungGyu Kim, Paju-si (KR)
Assigned to LG DISPLAY CO., LTD., Seoul (KR)
Filed by LG DISPLAY CO., LTD., Seoul (KR)
Filed on Jun. 16, 2020, as Appl. No. 16/902,742.
Claims priority of application No. 10-2019-0142380 (KR), filed on Nov. 8, 2019.
Prior Publication US 2021/0143365 A1, May 13, 2021
Int. Cl. H10K 50/844 (2023.01); H10K 59/124 (2023.01)
CPC H10K 50/844 (2023.02) [H10K 59/124 (2023.02)] 20 Claims
OG exemplary drawing
 
1. A display apparatus, comprising:
a substrate including a pixel area and a disconnected area which encloses a hole area;
an organic light emitting diode in the pixel area;
a plurality of organic insulating layers disposed below the organic light emitting diode;
a plurality of inorganic insulating layers disposed below plurality of organic insulating layers;
a disconnection structure which is disposed in the disconnected area and encloses the hole area; and
an internal dam which is disposed in the disconnected area and encloses the disconnection structure,
wherein the disconnection structure includes an eave portion constituting at least one of the plurality of organic insulating layers and a trench which is patterned by etching at least one of the plurality of inorganic insulating layers disposed below the eave portion,
wherein the disconnection structure is configured to have a predetermined overhang and a predetermined depth by the eave portion and the trench, and
wherein the eave portion has a mesa shape, a base of the eave portion directly contacts an upper surface of a topmost inorganic insulating layer among the plurality of inorganic insulating layers, and the base of the eave portion is wider than an upper portion of the eave portion.