A display device in an embodiment according to the present invention include a substrate including a display region arranged with a plurality of pixels, and a terminal region arranged with a plurality of connection terminals on a first surface of the substrate, a plurality of wirings between the terminal region and the display region and transmitting a signal for controlling light emission of the plurality of pixels, a polarization plate covering the display region, an oil repellent layer along an end part of the polarization plate, and a first protection layer covering the plurality of wirings for preventing exposure of the first surface of the substrate, the first protection layer arranged on the outer side of the polarization plate in a planar view in contact with an end part of the polarization plate.