Provided is a display device including: a display panel configured to generate an image; a touch screen panel formed on the display panel; and a window formed on the touch screen panel and extending over a side edge of the touch screen panel to facilitate a covering and sealing of the touch screen panel. According to the present invention, by providing a display device having a laminated structure in which the edge of the touch screen panel is sealed so as to prevent moisture from permeating from the outside, occurrence of product defects may be prevented.