A display device includes a first display panel, a second display panel opposite the first display panel, a frame positioned between the first display panel and the second display panel, a first opening formed on the frame and positioned on a lower back side of the first display panel, a second opening formed on the frame and positioned on an upper back side of the second display panel, a first printed circuit board (PCB) electrically connected to the first display panel and positioned in the first opening, and a second PCB electrically connected to the second display panel and positioned in the second opening.