A display device includes a substrate, a plurality of pixels on the substrate, a first electrode arranged for each pixel on the substrate, a pixel defining layer on the substrate along a boundary of each pixel and including an opening exposing the first electrode of the pixel, an organic layer on the first electrode in the opening of the pixel defining layer, and a second electrode on the organic layer, the pixel defining layer including a first pixel defining layer and a second pixel defining layer stacked on a surface of the first pixel defining layer, the surface of the first pixel defining layer including an upper surface and a side surface, and a surface roughness of the upper surface of the first pixel defining layer being greater than a surface roughness of the first electrode.