A display device, comprising: a substrate including a display area and a peripheral area outside the display area; a display element in the display area, the display element including a pixel electrode, a light emission layer, and an opposite electrode that are sequentially stacked; a first power voltage wiring located in the peripheral area and providing a first power to a thin film transistor that is electrically connected to the display element and located in the display area; a second connection wiring located in the peripheral area and electrically connected to the opposite electrode to provide a second power to the display element, the second power being different from the first power; a peripheral circuit in the peripheral area, the peripheral circuit including a thin film transistor; a first shielding layer (1170, 1170') over the peripheral circuit; and a second shielding layer (1270, 1270') over the first shielding layer, the second shielding layer overlapping the first shielding layer, wherein the first shielding layer includes a first hole and the second shielding layer includes a second hole, wherein an end of the opposite electrode extends to the peripheral area to cover the peripheral circuit, wherein the first and second shielding layers (1170, 1270) are electrically connected to the second connection wiring so as to have a same voltage level as each other, wherein the second connection wiring is electrically connected to the opposite electrode via the second shielding layer, wherein the first shielding layer and the second shielding layer are interposed between the peripheral circuit and the end of the opposite electrode. a substrate including a display area and a peripheral area outside the display area; a display element in the display area, the display element including a pixel electrode, a light emission layer, and an opposite electrode that are sequentially stacked; a first power voltage wiring located in the peripheral area and providing a first power to a thin film transistor that is electrically connected to the display element and located in the display area; a second connection wiring located in the peripheral area and electrically connected to the opposite electrode to provide a second power to the display element, the second power being different from the first power; a peripheral circuit in the peripheral area, the peripheral circuit including a thin film transistor; a first shielding layer (1170, 1170') over the peripheral circuit; and a second shielding layer (1270, 1270') over the first shielding layer, the second shielding layer overlapping the first shielding layer, wherein the first shielding layer includes a first hole and the second shielding layer includes a second hole, wherein an end of the opposite electrode extends to the peripheral area to cover the peripheral circuit, wherein the first and second shielding layers (1170, 1270) are electrically connected to the second connection wiring so as to have a same voltage level as each other, wherein the second connection wiring is electrically connected to the opposite electrode via the second shielding layer, wherein the first shielding layer and the second shielding layer are interposed between the peripheral circuit and the end of the opposite electrode.