A backlight assembly includes a light source unit configured to generate light, a lower receiving container having a bottom portion and a side wall and being configured to receive the light source unit, the lower receiving container shaped to cover a lower surface of the light source unit and a mold frame formed directly on the lower receiving container and having a cut portion, the cut portion having a first end portion and a second end portion, the first end portion and the second end portion spaced apart from each other and facing each other with a gap therebetween.