A display device includes a display area and a non-display area. The non-display area includes a sealing area which includes a sealing material. The display area includes a thin film transistor structure, a pixel electrode on and connected to the thin film transistor structure, and a pixel defining layer overlapping an edge of the pixel electrode. A first functional layer is on substrate on which the pixel defining layer is formed and does not overlap the sealing area. A light emitting layer is on the first functional layer and overlaps the pixel electrode, and a common electrode on the light emitting layer.