A display device may include a main flexible printed circuit including a first alignment mark and electrically connected to a first panel; and a touch flexible printed circuit including a second alignment mark and electrically connected to a second panel that is perpendicular to the first panel, wherein the main flexible printed circuit is electrically connected to the touch flexible printed circuit through a pad region, and the touch flexible printed circuit includes a first overcoat region disposed between the first alignment mark and the second alignment mark.