The present invention provides a display device, including a display unit having a plurality of semiconductor light emitting devices and outputting light to an upper surface thereof, a transparent substrate located on an upper side of the display unit and having a fixing portion protruding from one surface thereof to surround a side surface of the display unit, an elastic portion located to cover a lower surface of the display unit and made of an elastic member, a first back cover coupled to a part of the transparent substrate not overlapping the display unit in an injection manner, and a second back cover located to overlap the display unit and fixed to the first back cover, wherein the elastic portion presses the display unit toward the transparent substrate.