A display device includes a panel substrate including a pad region, and a COF (Chip On Film) including a wire region, the wire region including a plurality of wires connected to the pad region of the panel substrate, wherein the plurality of wires in the wire region is arranged into a plurality of sections, intervals between wires within each section being different from intervals between wires within an adjacent section, and at least one of the plurality of sections including a plurality of wires at a fixed interval.