A display device includes a curved display panel and a backlight unit. The backlight unit includes a light guide film and a light source unit. The light guide film defines: a light emission part thereof facing the display panel, a folding part thereof extending from the light emission part to be folded in a folded state of the light guide film, and a light incident part thereof extending from the folding part to face the display panel with the light emission part therebetween, The light incident part is extended at a first end thereof from the folding part and defines a light incident surface of the light guide film at a second end of the light incident part opposite to the first end thereof. The light source unit is overlapped with the light emission part and face the light incident surface.