US 12,336,287 B2
Display device and tiled display device including the same
Dae Hwan Jang, Seoul (KR); Yi Joon Ahn, Seoul (KR); Jae Been Lee, Seoul (KR); and Jin Ho Cho, Cheonan-si (KR)
Assigned to SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed by Samsung Display Co., LTD., Yongin-si (KR)
Filed on Aug. 4, 2021, as Appl. No. 17/393,940.
Claims priority of application No. 10-2020-0102526 (KR), filed on Aug. 14, 2020.
Prior Publication US 2022/0052079 A1, Feb. 17, 2022
Int. Cl. H10D 86/60 (2025.01); H01L 25/16 (2023.01); H01L 25/18 (2023.01); H10D 86/01 (2025.01); H10D 86/40 (2025.01); G09G 3/3275 (2016.01)
CPC H10D 86/60 (2025.01) [H01L 25/162 (2013.01); H01L 25/167 (2013.01); H01L 25/18 (2013.01); H10D 86/0212 (2025.01); H10D 86/441 (2025.01); G09G 3/3275 (2013.01); G09G 2300/026 (2013.01)] 24 Claims
OG exemplary drawing
 
1. A display device comprising:
a substrate having an upper surface and a lower surface opposite the upper surface in a thickness direction and including a first contact hole;
an etching stopper disposed on the upper surface of the substrate and including the first contact hole;
a metal pattern having an upper surface directly contacting the lower surface of the substrate and having an edge surface surrounding the first contact hole in a plan view;
a first pad unit having an upper surface directly contacting the edge surface and directly contacting a lower surface of a part of the metal pattern and inserted into the first contact hole;
a lead line disposed on the lower surface of the substrate and electrically connected to another part of the metal pattern;
a second pad unit disposed on the lower surface of the substrate and electrically connected to the lead line;
a protective film overlapping the lower surface of the substrate, the protective film directly contacting the another part of the metal pattern and directly contacting the lead line; and
a protection part overlapping the first pad unit.