A display device including a display module, a supporting portion disposed below the display module, a plurality of protruding portions protruding from an edge of the supporting portion, and a case containing the display module, the supporting portion, and the protruding portions. The case includes a bottom portion disposed below the supporting portion and a sidewall portion spaced apart from an edge of the display module and extended along the edge of the display module. The protruding portions protrude outward relative to the edge of the display module and are adjacent to the sidewall portion.