A display device comprising: a housing defining an interior space; a plate positioned to divide the interior space into a front space and a rear space, wherein the plate comprises an opening between the front space and the rear space; and a display module disposed at the front space and mounted to the plate to cover the opening ; a main frame disposed at the rear space and defining a second inner space, wherein the main frame divides the rear space into the second inner space and an intermediate space, wherein the housing comprises an inlet opening and an outlet opening configured to permit an air flow between the intermediate space and an exterior of the housing driven by first fan positioned in the intermediate space, characterized in that the display device further comprises a glass disposed at a front side of the housing , and in that the plate includes a first hole , a second hole , and a third hole , the first hole and the second hole connecting the front space and the intermediate space, and in that the main frame comprises: a fourth hole and a fifth hole connecting the second inner space and the intermediate space; a first duct arranged between and connecting the first hole and the fourth hole ; a second duct arranged between and connecting the second hole and the fifth hole ; and a second fan positioned in the second inner space, and in that an air flow discharged from the second fan can pass through the fourth hole of the main frame , the first duct and the first hole of the plate , and in that an air flow discharged from the second fan can pass through the fifth hole of the main frame , the second duct and the second hole of the plate a housing defining an interior space; a plate positioned to divide the interior space into a front space and a rear space, wherein the plate comprises an opening between the front space and the rear space; and a display module disposed at the front space and mounted to the plate to cover the opening ; a main frame disposed at the rear space and defining a second inner space, wherein the main frame divides the rear space into the second inner space and an intermediate space, wherein the housing comprises an inlet opening and an outlet opening configured to permit an air flow between the intermediate space and an exterior of the housing driven by first fan positioned in the intermediate space, characterized in that the display device further comprises a glass disposed at a front side of the housing , and in that the plate includes a first hole , a second hole , and a third hole , the first hole and the second hole connecting the front space and the intermediate space, and in that the main frame comprises: a fourth hole and a fifth hole connecting the second inner space and the intermediate space; a first duct arranged between and connecting the first hole and the fourth hole ; a second duct arranged between and connecting the second hole and the fifth hole ; and a second fan positioned in the second inner space, and in that an air flow discharged from the second fan can pass through the fourth hole of the main frame , the first duct and the first hole of the plate , and in that an air flow discharged from the second fan can pass through the fifth hole of the main frame , the second duct and the second hole of the plate a fourth hole and a fifth hole connecting the second inner space and the intermediate space; a first duct arranged between and connecting the first hole and the fourth hole ; a second duct arranged between and connecting the second hole and the fifth hole ; and a second fan positioned in the second inner space, and in that an air flow discharged from the second fan can pass through the fourth hole of the main frame , the first duct and the first hole of the plate , and in that an air flow discharged from the second fan can pass through the fifth hole of the main frame , the second duct and the second hole of the plate <EOS>