A deformed display device includes a display area including a plurality of pixel array areas in which a plurality of pixel array groups are arranged and a plurality of circuit areas in which a plurality of driving circuits are arranged, wherein the pixel array groups and the driving circuits form a pixel block; and a dummy area disposed at one side of the display area and including a plurality of dummy pixel array areas in which a plurality of dummy pixel array groups are arranged and a plurality of dummy circuit areas in which a plurality of dummy circuits are arranged, wherein the dummy pixel array groups and the dummy circuits do not form the pixel block.