A backlight assembly includes a plurality of point light source substrates each including a substrate main body, a power supplying line disposed on the substrate main body, and a pad part disposed on the substrate main body and electrically connected to the power supplying line, a point light source disposed on each of the point light source substrates and supplied with power through the power supplying line, and a connecting film connecting adjacent point light source substrates and including a first film main body and a metal pattern disposed on the first film main body and electrically connected with the pad part.