A display device comprising: a display panel; a module cover disposed behind the display panel and coupled to the display panel; a frame disposed behind the module cover and coupled to the module cover; a front cover configured to close or open the display panel while moving on the frame in an up-down direction; a bar extending in a left-right direction of the display panel and sliding on the frame; and a roller disposed adjacent to a lower end of the frame and configured to roll or unroll the front cover, wherein an upper end of the front cover is fixed to the bar, and wherein the frame includes: a plurality of horizontal frames (310, 320, 330, 340) extending in the left-right direction of the display panel; a vertical frame (350, 360) intersecting and coupled to the plurality of horizontal frames (310, 320, 330, 340), the vertical frame (350, 360) being disposed adjacent to one side of the display panel; characterised in that the frame includes a guide roller able to slide and move on the vertical frame (350, 360), the guide roller being fixed to the bar, and in that the display device further comprises: a lower pulley installed at the vertical frame (350, 360) adjacent to the roller; an upper pulley installed adjacent to an upper end of the vertical frame (350, 360); and a belt configured to connect the lower pulley and the upper pulley, wherein the guide roller is fixed to the belt. a display panel; a module cover disposed behind the display panel and coupled to the display panel; a frame disposed behind the module cover and coupled to the module cover; a front cover configured to close or open the display panel while moving on the frame in an up-down direction; a bar extending in a left-right direction of the display panel and sliding on the frame; and a roller disposed adjacent to a lower end of the frame and configured to roll or unroll the front cover, wherein an upper end of the front cover is fixed to the bar, and wherein the frame includes: a plurality of horizontal frames (310, 320, 330, 340) extending in the left-right direction of the display panel; a vertical frame (350, 360) intersecting and coupled to the plurality of horizontal frames (310, 320, 330, 340), the vertical frame (350, 360) being disposed adjacent to one side of the display panel; characterised in that the frame includes a guide roller able to slide and move on the vertical frame (350, 360), the guide roller being fixed to the bar, and in that the display device further comprises: a lower pulley installed at the vertical frame (350, 360) adjacent to the roller; an upper pulley installed adjacent to an upper end of the vertical frame (350, 360); and a belt configured to connect the lower pulley and the upper pulley, wherein the guide roller is fixed to the belt. a plurality of horizontal frames (310, 320, 330, 340) extending in the left-right direction of the display panel; a vertical frame (350, 360) intersecting and coupled to the plurality of horizontal frames (310, 320, 330, 340), the vertical frame (350, 360) being disposed adjacent to one side of the display panel; characterised in that the frame includes a guide roller able to slide and move on the vertical frame (350, 360), the guide roller being fixed to the bar, and in that the display device further comprises: a lower pulley installed at the vertical frame (350, 360) adjacent to the roller; an upper pulley installed adjacent to an upper end of the vertical frame (350, 360); and a belt configured to connect the lower pulley and the upper pulley, wherein the guide roller is fixed to the belt. a lower pulley installed at the vertical frame (350, 360) adjacent to the roller; an upper pulley installed adjacent to an upper end of the vertical frame (350, 360); and a belt configured to connect the lower pulley and the upper pulley, wherein the guide roller is fixed to the belt.