DISPLAY DEVICE

Provided is a display device including a substrate including a display area and a contact area located in a display area, a power line disposed in a display area on a substrate and overlapping a contact area, a passivation layer disposed on a substrate and a power line, and an opening exposing at least a portion of an upper surface of a power line in a contact area defined in a passivation layer, a via insulation layer disposed on a passivation layer, including a via contact hole connected to an opening in a contact area, and including a protrusion protruding toward a center of a via contact hole, and a common electrode disposed on a via insulation layer and a power line and electrically connected to a power line in a contact area.