A display device includes: a display region; and a frame region disposed around the display region. The frame region partly includes a terminal section, wherein the frame region includes a main-power-source-voltage stem wire and an auxiliary-power-source-voltage stem wire. The frame region includes a first frame region having the terminal section, and a second frame region located opposite the first frame region with reference to the display region. The main-power-source-voltage stem wire has a potential different from a potential of the auxiliary-power-source-voltage stem wire, and the main-power-source-voltage stem wire and the auxiliary-power-source-voltage stem wire are electrically connected together.