The display device contains a light guide plate, a light source unit adjacent to a light entry face of the light guide plate, a heat dissipation base carrying the light source unit, first and second frame members fixedly joined to the heat dissipation base, and first and second display panels. The first and second frame member are positioned above and below a first light emission face and a second light emission face of the light guide plate, respectively. The first and second display panels are fixedly positioned on the first frame member and beneath the second frame member, oppositely to the first and second light emission face, respectively. The display device achieves superior heat dissipation, narrow bezel, and enhanced structural strength.