A display device includes: a display panel which is curved and displays an image; a cover window which is disposed on a front surface of the display panel at which the image is displayed; and a cover panel which is curved and disposed on a curved back surface of the display panel opposite to the front surface thereof. The cover panel is defined by a flat cover panel which is curved by attachment thereof to the curved back surface of the display panel, and the flat cover panel which is curved to define the cover panel includes a cutout portion therein recessed from an outer edge of the flat cover panel toward a center of the flat cover panel.