A display device comprising: a substrate comprising a front surface, a first side surface extending from a first side of the front surface, a second side surface extending from a second side of the front surface, and a corner disposed between the first side surface and the second side surface, wherein the first side surface is bent at a first edge of the front surface and the second side surface is bent at a second edge of the front surface, such that the corner comprises a double curvature; a first display area disposed at the front surface of the substrate, wherein the first display area includes a first pixel including a first pixel electrode, a first emissive layer disposed on the first pixel electrode, and a first common electrode disposed on the first emissive layer; a second display area disposed at the corner of the substrate, wherein the second display area includes cutout patterns and cutting grooves, a second pixel including a second pixel electrode, a second emissive layer disposed on the second pixel electrode, and a second common electrode disposed on the second emissive layer; a first inorganic encapsulation layer disposed on the first common electrode in the first display area and the second common electrode in the second display area; an organic encapsulation layer disposed on the first inorganic encapsulation layer in the first display area; and a second inorganic encapsulation layer disposed on the organic encapsulation layer in the first display area and on the first inorganic encapsulation layer in the second display area, wherein cutout connection patterns are disposed between each cutout pattern and a non-display area, and the cutout connection patterns each comprise a serpentine shape including a plurality of bent or curved portions. a substrate comprising a front surface, a first side surface extending from a first side of the front surface, a second side surface extending from a second side of the front surface, and a corner disposed between the first side surface and the second side surface, wherein the first side surface is bent at a first edge of the front surface and the second side surface is bent at a second edge of the front surface, such that the corner comprises a double curvature; a first display area disposed at the front surface of the substrate, wherein the first display area includes a first pixel including a first pixel electrode, a first emissive layer disposed on the first pixel electrode, and a first common electrode disposed on the first emissive layer; a second display area disposed at the corner of the substrate, wherein the second display area includes cutout patterns and cutting grooves, a second pixel including a second pixel electrode, a second emissive layer disposed on the second pixel electrode, and a second common electrode disposed on the second emissive layer; a first inorganic encapsulation layer disposed on the first common electrode in the first display area and the second common electrode in the second display area; an organic encapsulation layer disposed on the first inorganic encapsulation layer in the first display area; and a second inorganic encapsulation layer disposed on the organic encapsulation layer in the first display area and on the first inorganic encapsulation layer in the second display area, wherein cutout connection patterns are disposed between each cutout pattern and a non-display area, and the cutout connection patterns each comprise a serpentine shape including a plurality of bent or curved portions.