US 12,446,409 B2
Display device with hydrogen blocking layer to minimize diffusion of hydrogen to transistor
Jungcheol Shin, Seoul (KR); Byungjin Kim, Paju-si (KR); GiSang Hong, Seoul (KR); YoungWook Lee, Paju-si (KR); and Jinkwon Park, Seoul (KR)
Assigned to LG Display Co., Ltd, (KR)
Filed by LG DISPLAY CO., LTD., Seoul (KR)
Filed on Jul. 18, 2022, as Appl. No. 17/866,931.
Claims priority of application No. 10-2021-0117619 (KR), filed on Sep. 3, 2021; application No. 10-2021-0117622 (KR), filed on Sep. 3, 2021; and application No. 10-2021-0178549 (KR), filed on Dec. 14, 2021.
Prior Publication US 2023/0076860 A1, Mar. 9, 2023
Int. Cl. H10K 59/122 (2023.01); H10K 50/818 (2023.01); H10K 59/123 (2023.01)
CPC H10K 59/122 (2023.02) [H10K 50/818 (2023.02); H10K 59/123 (2023.02)] 20 Claims
OG exemplary drawing
 
1. A display device comprising:
a substrate including a display area and a non-display area;
a first overcoating layer disposed on the substrate and including a base portion and a protruding portion protruding from the base portion;
a first hydrogen blocking layer disposed on a top surface of the protruding portion in the display area;
a first electrode covering the base portion and the first hydrogen blocking layer;
a bank disposed on a part of the first electrode;
an organic layer disposed on the first electrode and the bank; and
a second electrode disposed on the organic layer,
wherein the first hydrogen blocking layer is not disposed on a top surface of the base portion and a side surface of the protruding portion.