A display device includes a display unit including a plurality of pixels respectively including thin film transistors; and a terminal unit including an array of a plurality of terminals. The display device includes a first insulating film provided on a substrate; the thin film transistors provided on the first insulating film; a second insulating film that is provided in the display unit and in the terminal unit and has openings located between the plurality of terminals; a plurality of signal lines that are provided on the second insulating film and are respectively connected to the thin film transistors, and a plurality of terminal lines that are provided on the second insulating film in the terminal unit; and a third insulating film that is located on the plurality of signal lines and the plurality of terminal lines and is formed of an organic insulating film.