Provided is a display device having defined therein an opening corresponding to a boundary region, and including a plurality of insulating layers disposed on a base layer, an organic layer disposed in the opening, a first connection electrode disposed on the uppermost insulating layer among the plurality of insulating layers, connected to a first signal line through a first contact hole passing through the organic layer, and connected to a transistor through a second contact hole passing through corresponding insulating layers among the plurality of insulating layers, and a second signal line disposed on a layer different from a layer on which the first line is disposed.