a display panel;

a frame disposed at a rear of the display panel;

a fixing member disposed at a rear of the frame and coupled to the frame, the fixing member including upper openings and lower openings;

a connector including upper protruding portions that are inserted into the upper openings and including lower protruding portions aligned with the lower openings; and

a locking unit coupled to a rear surface of the frame, the locking unit including engaging portions passing through the lower openings and elastic members extending and pressing the engaging portions,

wherein the lower protruding portions are engaged with and press against the engaging portions exposed through the lower openings, and the upper protruding portions are engaged with the fixing member,

wherein the locking unit includes:

a coupling body coupled to the rear surface of the frame and supporting a first end of the elastic member, the coupling body including guide pins protruding rearward from a rear surface of the coupling body; and

a support body disposed at a rear of the coupling body, and including the engaging portions contacting a second end of the elastic member, the support body including guide holes guiding the placement of the support body onto the guide pins, and

wherein a width of a guide hole is greater than an outer diameter of a guide pin corresponding to the guide hole.