A display device is disclosed. The display device includes a display panel, a composite panel coupled to the display panel, and a fastening member coupled to the composite panel. The composite panel includes a front skin defining a front surface of the composite panel, a rear skin defining a rear surface of the composite panel and opposed to the front skin, a core positioned between the front skin and the rear skin and including fibers, and a fastening hole formed through the front skin, the rear skin, and the core. The fastening member includes a shaft body disposed in the fastening hole, and a head connected to the shaft body and pushed into one of the front skin or the rear skin. One of the front skin or the rear skin is in contact with a lateral surface of the head.