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 extending in the left-right direction of the display panel ; a vertical frame intersecting and coupled to the plurality of horizontal frames , the vertical frame 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 , the guide roller being fixed to the bar , and in that the display device further comprises: a lower pulley installed at the vertical frame adjacent to the roller ; an upper pulley installed adjacent to an upper end of the vertical frame ; 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 extending in the left-right direction of the display panel ; a vertical frame intersecting and coupled to the plurality of horizontal frames , the vertical frame 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 , the guide roller being fixed to the bar , and in that the display device further comprises: a lower pulley installed at the vertical frame adjacent to the roller ; an upper pulley installed adjacent to an upper end of the vertical frame ; 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 extending in the left-right direction of the display panel ; a vertical frame intersecting and coupled to the plurality of horizontal frames , the vertical frame 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 , the guide roller being fixed to the bar , and in that the display device further comprises: a lower pulley installed at the vertical frame adjacent to the roller ; an upper pulley installed adjacent to an upper end of the vertical frame ; 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 adjacent to the roller ; an upper pulley installed adjacent to an upper end of the vertical frame ; and a belt configured to connect the lower pulley and the upper pulley , wherein the guide roller is fixed to the belt . <EOS>