Display device and method of manufacturing the display device

A method of manufacturing a display device, the method comprising:

• preparing a substrate comprising a central area and a corner area;
• forming a plurality of display elements on the substrate in the central area and the corner area;
• forming a cutout pattern between adjacent extension areas of a plurality of extension areas in the corner area of the substrate so that the plurality of extension areas includes distal portions spaced apart from each other;
• forming a lower protection film on a rear surface of the substrate;
• forming a first organic filler in an area corresponding to the cutout pattern;
• and
• bending the corner area of the substrate,
• wherein the first organic filler is between distal portions of the adjacent extension areas, and the adjacent extension areas and the first organic filler are disposed at a curved surface of the substrate which is different from a surface of the central area of the substrate.