Provided is a display device having a flexible substrate including an active region and a wiring region. The active region possesses a plurality of pixels each including a display element. The wiring region has a plurality of terminals, and a plurality of wirings extends from the active region to the plurality of terminals. An insulating film included in the active region and extending from the active region has a sidewall between an edge of the flexible substrate and the wiring adjacent to the edge in the wiring region. The sidewall has a curved portion on a plane in which the plurality of wirings is arranged, and a distance between the edge and the curved portion is curvedly varied.