A display device includes an optical member, a display panel disposed on an upper portion of the optical member, a plurality of light emitting elements disposed on a lower portion of the optical member to provide light to the optical member, a first cover member in which a through-hole is defined, the first cover member accommodating the plurality of light emitting elements, and an optical member supporter inserted into the through-hole to support the optical member. The optical member supporter includes a fixing member of which a portion is inserted into the through-hole and a support member including n coupling blocks (where n is a natural number equal to or greater than 2) which are sequentially coupled in one direction, the support member being coupled to the fixing member to support the optical member.