A display device comprising a front display area; and a plurality of side display areas; and a corner display area, wherein the plurality of side display areas and the corner display area are disposed outside of the front display area, wherein the plurality of side display areas comprise: a first side display area disposed at a first side of the front display area; and a second side display area disposed at a second side of the front display area, wherein the corner display area is disposed at a corner of the front display area between the first side display area and the second side display area, the corner display area being connected to the first side display area and the second side display area, and wherein: the front display area has a flat display surface; the first side display area, the second side display area, and the corner display area respectively form a bent surface; a shape of the bent surface of the corner display area is different from a shape of the bent surface of the first side display area and a shape of the bent surface of the second side display area; and the corner display area is stretchable and/or shrinkable, wherein the first side display area and the second side display area are stretchable and/or shrinkable, and wherein: the front display area comprises a plurality of first display units; the first side display area and the second side display area comprise a plurality of second display units; the corner display area comprises a plurality of third display units; characterized in that, in a state before the first side display area, the second side display area, and the corner display area are stretched to form the bent surface, at least one of a pitch (Wb1, Wc2) of the second display units and a pitch (Wr) of the third display units is smaller than a pitch (Wa1, Wa2) of the first display units. a front display area; and a plurality of side display areas; and a corner display area, wherein the plurality of side display areas and the corner display area are disposed outside of the front display area, wherein the plurality of side display areas comprise: a first side display area disposed at a first side of the front display area; and a second side display area disposed at a second side of the front display area, a first side display area disposed at a first side of the front display area; and a second side display area disposed at a second side of the front display area, wherein the corner display area is disposed at a corner of the front display area between the first side display area and the second side display area, the corner display area being connected to the first side display area and the second side display area, and wherein: the front display area has a flat display surface; the first side display area, the second side display area, and the corner display area respectively form a bent surface; a shape of the bent surface of the corner display area is different from a shape of the bent surface of the first side display area and a shape of the bent surface of the second side display area; and the front display area has a flat display surface; the first side display area, the second side display area, and the corner display area respectively form a bent surface; a shape of the bent surface of the corner display area is different from a shape of the bent surface of the first side display area and a shape of the bent surface of the second side display area; and the front display area comprises a plurality of first display units; the first side display area and the second side display area comprise a plurality of second display units; the corner display area comprises a plurality of third display units; characterized in that, in a state before the first side display area, the second side display area, and the corner display area are stretched to form the bent surface, at least one of a pitch (Wb1, Wc2) of the second display units and a pitch (Wr) of the third display units is smaller than a pitch (Wa1, Wa2) of the first display units.