US 12,002,816 B2
Display device and tiled display device including the same
Ji Hyun Kim, Hwaseong-si (KR); Tae Wook Kang, Seongnam-si (KR); and Chul Min Bae, Hwaseong-si (KR)
Assigned to Samsung Display Co., Ltd., Yongin-si (KR)
Filed by Samsung Display Co., Ltd., Yongin-Si (KR)
Filed on Jul. 29, 2021, as Appl. No. 17/389,109.
Claims priority of application No. 10-2020-0101155 (KR), filed on Aug. 12, 2020.
Prior Publication US 2022/0052078 A1, Feb. 17, 2022
Int. Cl. H01L 27/12 (2006.01); H01L 25/16 (2023.01); H10K 59/131 (2023.01); H10K 59/18 (2023.01)
CPC H01L 27/124 (2013.01) [H01L 25/162 (2013.01); H01L 25/167 (2013.01); H01L 27/1262 (2013.01); H10K 59/131 (2023.02); H10K 59/18 (2023.02)] 24 Claims
OG exemplary drawing
 
1. A display device comprising:
a first substrate, wherein a first contact hole is defined in the first substrate;
a barrier layer disposed on the first substrate, wherein a second contact hole is defined in the barrier layer and is connected to the first contact hole;
a first connection line disposed on the barrier layer and inserted into the second contact hole;
a second substrate covering the first connection line and the barrier layer;
a thin-film transistor layer disposed on the second substrate and including at least one thin-film transistor; and
a pad part disposed on a lower surface of the first substrate and connected to the first connection line through the first contact hole,
wherein the thin-film transistor layer further has a second connection line connected between the first connection line and the at least one thin-film transistor, and the first connection line extends in a layer between the barrier layer and the second substrate.