The present invention, the front surface 35 is provided with a transmission surface 30; A display module 10 accommodated in the enclosure 30 and spaced apart from the front 35 and rear 36 of the enclosure; The space between the front surface 35 of the enclosure 30 and the front surface 11 of the display module 10, the space between the side surface of the enclosure 30 and the side surface of the display module 30, and the rear surface 36 of the enclosure 30. Lung circulation environment path 50 for circulating the space between the back and 12 of the display module 10; An open flow path 70 provided outside the enclosure 30; And a thermoelectric element heat exchanger 20 provided at a side or a rear surface of the enclosure 30 to cool the air in the closed environment path 50 and radiate heat to the open flow path 70. The element heat exchanger 20 may include: a thermoelectric having a first surface 213 disposed in a direction facing the display module 10 and a second surface 224 facing the first surface 213. Element 21; A first sink 23 in contact with the first surface 213 and exposed toward the closed environment path 50; A second sink 24 in contact with the second surface 224 and exposed toward the open flow path 70; And a second fan 25 through which external air flows so that the open flow path 70 is formed in the second sink, wherein the thermoelectric element 21 receives heat from the first surface 213. Provided is a display chiller that moves to face 224.
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