According to an aspect of the present disclosure, a display device includes a substrate in which an emission area and a non-emission area are included and having a plurality of sub pixels thereon; at least one gate line disposed in the non-emission area; at least one reference line disposed in the non-emission area and overlapping at least one gate line; and at least one data line disposed in the non-emission area and overlapping at least one gate line, in which the at least one gate line includes a first bridge line and a second bridge line branched at an area overlapping the at least one data line and the at least one reference line and the first bridge line and the second bridge line are disposed on different layers and are connected to each other through a plurality of first contact holes.