A display device is provided. The display device includes a display panel including a folding region, first and second non-folding regions at opposite sides of the folding region; a first support plate below the display panel to overlap the first non-folding region and to partially overlap the folding region; a second support plate below the display panel to overlap the second non-folding region and to partially overlap the folding region; a first plate coupling film between the display panel and the first support plate to overlap the first non-folding region; a second plate coupling film between the display panel and the second support plate to overlap the second non-folding region; a first step compensating member between the display panel and the first support plate to overlap the folding region, apart from the first plate coupling film, and including a light shielding layer; and a second step compensating member between the display panel and the second support plate to overlap the folding region, apart from the second plate coupling film, and including a light shielding layer.