Disclosed is a display device. The display device of the present disclosure comprises: a flexible display panel; an elongated roller on which the display panel is wound or unwound; and a disk wheel positioned adjacent to the edges of the display panel which is laminated while wound on the roller, wherein the disk wheel is coupled to the roller and passes across the axis of rotation of the roller. The diameter of the disk wheel may be larger than the diameter of the display panel wound around the roller.