A display device is provided to enhance coupling force between a mold frame and an exterior case and improve assembly operability by forming a buffer groove in a hook portion of a mold frame. A backlight unit supplies light. A liquid crystal display panel is disposed on the backlight unit, and displays an image. A mold frame(400) receives the backlight unit and the liquid crystal display panel, and includes a hook portion(420) protruding from a side surface and having a buffer groove forming a predetermined space therein. An exterior case(500) includes a protrusion(530) coupled to the hook portion of the mold frame. The mold frame and the exterior case are formed of a nylon-based material. The mold frame and the exterior case include a magnesium component.
