A display device includes a substrate which defines a light emitting area and an auxiliary electrode contact part and comprises a plurality of concave portions, a plurality of reflective layers which are disposed in the plurality of concave portions, respectively, an auxiliary electrode which is disposed to overlap with the auxiliary electrode contact part and is connected to a low potential driving power; an organic layer which covers the auxiliary electrode, and a cathode electrode which is formed on the organic layer and is in direct contact with the auxiliary electrode in the auxiliary electrode contact part, and at least one opening which is filled with the substrate and has at least one region overlapping with the auxiliary electrode contact part is formed between the plurality of reflective layers.