A display device including a display panel is provided. The display panel includes a display area in which a plurality of pixels are arranged, an antenna disposed in a first surface side of the display panel and an adjustment member disposed to be opposed to a part of the antenna. The antenna is configured to form a close-range wireless communication path with a medium in a second surface side of the display panel with the display panel interposed therebetween, and the adjustment member is configured to adjust a characteristic impedance of the antenna.