Abstract: A display apparatus is disclosed that includes a thin-film transistor including a semiconductor layer, an organic light-emitting element, and a passivation layer including a first contact hole connecting the thin-film transistor and the organic light-emitting element, wherein the passivation layer includes a first passivation layer, a second passivation layer, and a third passivation layer, which are sequentially stacked, and the first passivation layer includes SiON.

Abstract: 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.