A display device includes a substrate including an opening area, a peripheral area adjacent to the opening area, and a display area adjacent to the peripheral area; a semiconductor layer overlapping the display area, disposed on the substrate, and including a channel; a gate electrode overlapping the channel of the semiconductor layer; an insulating layer disposed on the gate electrode, and including a first inorganic insulating layer and a second inorganic insulating layer disposed on the first inorganic insulating layer; a first electrode disposed on the insulating layer; an emission layer disposed on the first electrode; and a second electrode disposed on the emission layer, wherein the second inorganic insulating layer is not disposed in at least a portion of an open region in which the emission layer and the second electrode are disconnected in the peripheral area.