Disclosed are a backlight module and a display device. The display device includes a liquid crystal panel. The backlight module includes a backplane, a light guide plate, a light source, and an optic film. The light guide plate, the light source, and the optic film are arranged on the backplane. The optic film is stacked on the light guide plate. The light guide plate includes a light incidence side. The light source includes a light emission surface and a lighting-opposite surface opposite to the light emission surface. The light emission surface of the light source is arranged to face the light incidence side of the light guide plate. The light emission surface includes a plurality of light transmission structures projecting therefrom. The liquid crystal panel is disposed on the backlight module. The liquid crystal panel and the backlight module are fixed together by a double-sided adhesive tape.