One embodiment of the present invention discloses a display device. The display device includes: a first substrate including a first display region and a first non-display region; a first display device formed in the first display region on the first substrate; a second substrate including a second display region overlapping the first non-display region and a second non-display region; and a second display device formed in the second display region on the second substrate. The display device realizes a mirror function on both surfaces of the display device while displaying an image on the surfaces at the same time without reducing a reflection characteristic and display quality efficiency.
