A display device includes a display panel including an upper substrate and a lower substrate facing-coupled to a rear surface of the upper substrate, a backlight unit supplying light to the display panel, a cover member receiving the display panel and covering a side surface of the display panel, a guide frame supporting the display panel and guiding a position of the display panel and a position of the backlight unit, and an adhesive member injected between the guide frame and the display panel and coupling the guide frame and the display panel. The guide frame includes a horizontal part and a first prevention jaw formed to protrude from one end of the horizontal part, and preventing the adhesive member from being injected into the backlight unit when injecting the adhesive member.