A display device comprising: a substrate (SUB) comprising a front surface (FS), a first side surface (SS1) extending from a first side of the front surface (FS), a second side surface (SS2) extending from a second side of the front surface (FS), and a corner (CS1) disposed between the first side surface (SS1) and the second side surface (SS2), wherein the first side surface (SS1) is bent at a first edge of the front surface (FS) and the second side surface (SS2) is bent at a second edge of the front surface (FS), such that the corner (CS1) comprises a double curvature; a first display area (DA1) disposed at the front surface (FS) of the substrate (SUB), wherein the first display area (DA1) includes a first pixel (PX1) 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 (DA2) disposed at the corner of the substrate, wherein the second display area (DA2) includes cutout patterns (CP) and cutting grooves (CG), a second pixel (PX2) 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 (DA1) and the second common electrode in the second display area (DA2); an organic encapsulation layer disposed on the first inorganic encapsulation layer in the first display area (DA1); and a second inorganic encapsulation layer disposed on the organic encapsulation layer in the first display area (DA1) and on the first inorganic encapsulation layer in the second display area (DA2), wherein cutout connection patterns (CBP) are disposed between each cutout pattern and a non-display area (NDA), and the cutout connection patterns each comprise a serpentine shape including a plurality of bent or curved portions. a substrate (SUB) comprising a front surface (FS), a first side surface (SS1) extending from a first side of the front surface (FS), a second side surface (SS2) extending from a second side of the front surface (FS), and a corner (CS1) disposed between the first side surface (SS1) and the second side surface (SS2), wherein the first side surface (SS1) is bent at a first edge of the front surface (FS) and the second side surface (SS2) is bent at a second edge of the front surface (FS), such that the corner (CS1) comprises a double curvature; a first display area (DA1) disposed at the front surface (FS) of the substrate (SUB), wherein the first display area (DA1) includes a first pixel (PX1) 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 (DA2) disposed at the corner of the substrate, wherein the second display area (DA2) includes cutout patterns (CP) and cutting grooves (CG), a second pixel (PX2) 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 (DA1) and the second common electrode in the second display area (DA2); an organic encapsulation layer disposed on the first inorganic encapsulation layer in the first display area (DA1); and a second inorganic encapsulation layer disposed on the organic encapsulation layer in the first display area (DA1) and on the first inorganic encapsulation layer in the second display area (DA2), wherein cutout connection patterns (CBP) are disposed between each cutout pattern and a non-display area (NDA), and the cutout connection patterns each comprise a serpentine shape including a plurality of bent or curved portions. <EOS>