The present invention provides a display device using a copper wiring and having high display properties in which without preventing a higher aperture ratio of the pixel, coloring of a screen due to reflected light of external light produced within the display device can be prevented. The display device according to the present invention is a display device including a plurality of pixel regions, wherein each of the pixel regions includes a copper wiring containing copper or an alloy thereof, and a red-colored layer and a colored layer of another color; and an area of the copper wiring is smaller in the pixel region including the red-colored layer than in the pixel region including the colored layer of another color, the area of the copper wiring reflecting incident light entering from the display surface side of the display device.