A display device including a display panel including a first pixel area and a second pixel area adjacent to the first pixel area; and a barrier positioned on a surface of the display panel, the barrier including: a first sub-barrier; and a second sub-barrier, wherein the first sub-barrier and the second sub-barrier are disposed between the first pixel area and the second pixel area to respectively cover an end of the first pixel area and an end of the second pixel area, in which the first pixel area and the second pixel area display a same first image, or the first pixel area displays any one of a first left-eye image and a first right-eye image and the second pixel area displays the other one of the first left-eye image and the first right-eye image.