Provided is a display device capable of suppressing electrostatic breakdown due to dummy wiring even when the dummy wiring is arranged adjacent to signal wiring supplying a display region with a driving signal.Two first supply circuit boards supply the display pixels in each row with a scanning signal, and four second supply circuit boards supply the display pixels in each column with a data signal. Dummy wiring is arranged at the position on the board adjacent to the outermost scanning signal wiring of a plurality of scanning signal wirings connected to each first supply circuit board. The offset distance from the dummy wiring to the peripheral conductor excluding the scanning signal wiring is longer than the offset distance between the dummy wiring and the scanning signal wiring.