An organic light-emitting display device including: a substrate; a first conductive layer disposed on the substrate; a pixel defining film disposed to define a plurality of pixels on the substrate, the pixel defining film exposing at least a part of the first conductive layer for each of the plurality of pixels; an organic light-emitting layer disposed on the at least a part of the first conductive layer exposed by the pixel defining film; a second conductive layer disposed on the organic light-emitting layer; a protection layer disposed in each of the plurality of pixels on the second conductive layer and exposing at least a part of the second conductive layer; and a sub-conductive layer disposed on the pixel defining film between the plurality of pixels, the sub-conductive layer electrically contacting with exposed portions of the second conductive layer disposed in the plurality of pixels.