| CPC H10K 59/18 (2023.02) [H10K 59/124 (2023.02); H10K 59/131 (2023.02)] | 11 Claims |
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1. A display device comprising:
a substrate comprising a first contact hole;
a thin-film transistor layer on a first surface of the substrate and comprising a plurality of insulating layers and a thin-film transistor;
an etching stopper on one or more of the insulating layers and contacting the substrate through a second contact hole surrounding the first contact hole in a plan view;
a connection line on the etching stopper; and
a pad part on a second surface of the substrate opposite the first surface of the substrate and connected to the connection line through the first contact hole,
wherein the first contact hole and the second contact hole are spaced apart from each other in a common layer in a plan view.
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