Provided are a display device, which has a longer life and can be fabricated simply relative to conventional display devices, and a method of fabricating the display device. The display device includes a substrate which includes first through third subpixel regions, first through third organic light-emitting transistors which are disposed in the first through third subpixel regions, respectively, and are operable to emit light of a first color, and a first fluorescent pattern which is formed on the first organic light-emitting transistor and is operable to cause light of a second color to be emitted.