A display device includes a display panel which includes a bending area which is bendable and includes a curvature area in a bent state, a protective film by which a first groove is defined, where the first groove corresponds to the curvature area, and an adhesive member disposed between the protective film and the display panel. The protective film includes a first inner side surface and a second inner side surface that define the first groove, and the first inner side surface and the second inner side surface have inclined shapes.