An organic light-emitting display device comprising a substrate; an insulating layer disposed on the substrate; a plurality of bottom electrodes arranged on the insulating layer in a matrix pattern defining a plurality of intersecting rows and columns; an organic layer disposed on each of the bottom electrodes; a top electrode disposed on the organic layer; and a plurality of wiring lines adjacent to the first bottom electrode, the wiring lines being formed on the insulating layer placed between the rows of the bottom electrodes.