A display device, comprising: 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, wherein: the case comprises: 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; and the protruding portions protrude outward relative to the edge of the display module and are adjacent to the sidewall portion characterized in that the display module is foldable, the display device is foldable, the protruding portions extending from the edge of the supporting portion to an outer region beyond the edge of the display module are in contact with the sidewall portion of the case located outside the display module, wherein the protruding portion protrudes outward from the edge of the display module, and the display module comprises: a first non-folding region; a second non-folding region arranged in a first direction with the first non-folding region; and a folding region disposed between the first non-folding region and the second non-folding region; and the supporting portion comprises: a first supporting portion disposed below the first non-folding region; and a second supporting portion disposed below the second non-folding region. 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 comprises: 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; and 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; and the protruding portions protrude outward relative to the edge of the display module and are adjacent to the sidewall portion the display module is foldable, the display device is foldable, the protruding portions extending from the edge of the supporting portion to an outer region beyond the edge of the display module are in contact with the sidewall portion of the case located outside the display module, wherein the protruding portion protrudes outward from the edge of the display module, and the display device is foldable, the protruding portions extending from the edge of the supporting portion to an outer region beyond the edge of the display module are in contact with the sidewall portion of the case located outside the display module, wherein the protruding portion protrudes outward from the edge of the display module, and the display module comprises: a first non-folding region; a second non-folding region arranged in a first direction with the first non-folding region; and a folding region disposed between the first non-folding region and the second non-folding region; and a first non-folding region; a second non-folding region arranged in a first direction with the first non-folding region; and a folding region disposed between the first non-folding region and the second non-folding region; and the supporting portion comprises: a first supporting portion disposed below the first non-folding region; and a second supporting portion disposed below the second non-folding region. a first supporting portion disposed below the first non-folding region; and a second supporting portion disposed below the second non-folding region.