A display apparatus comprising: a base substrate, wherein a display area, in which an image is displayed, and a non-display area adjacent to the display area are defined on the base substrate; a first via insulating layer disposed on the base substrate; a first power supply wire disposed in the non-display area on the first via insulating layer; a second power supply wire disposed in the non-display area on the first via insulating layer and spaced apart from the first power supply wire; a first dam disposed on the base substrate, wherein the first dam overlaps the first power supply wire and the second power supply wire, and extends along the non-display area; a first stacked structure disposed on the first via insulating layer between the first dam and the display area, wherein the first stacked structure has a height less than a height of the first dam; and an organic layer disposed on the first stacked structure and the first dam to overlap at least a substantially entire portion of the first stacked structure and at least a portion of the first dam; further comprising a second stacked structure disposed between the first stacked structure and the first dam, wherein the second stacked structure has a height less than the height of the first dam, wherein the display apparatus further comprises a second via insulating layer disposed on the first via insulating layer, wherein the first stacked structure and the second stacked structure include a portion of the second via insulating layer, and the first dam includes a portion of the second via insulating layer, imd characterised in that the second via insulating layer has a first height at the first dam, and a second height less than the first height at the first stacked structure and the second stacked structure. a base substrate, wherein a display area, in which an image is displayed, and a non-display area adjacent to the display area are defined on the base substrate; a first via insulating layer disposed on the base substrate; a first power supply wire disposed in the non-display area on the first via insulating layer; a second power supply wire disposed in the non-display area on the first via insulating layer and spaced apart from the first power supply wire; a first dam disposed on the base substrate, wherein the first dam overlaps the first power supply wire and the second power supply wire, and extends along the non-display area; a first stacked structure disposed on the first via insulating layer between the first dam and the display area, wherein the first stacked structure has a height less than a height of the first dam; and an organic layer disposed on the first stacked structure and the first dam to overlap at least a substantially entire portion of the first stacked structure and at least a portion of the first dam; further comprising a second stacked structure disposed between the first stacked structure and the first dam, wherein the second stacked structure has a height less than the height of the first dam, wherein the display apparatus further comprises a second via insulating layer disposed on the first via insulating layer, wherein the first stacked structure and the second stacked structure include a portion of the second via insulating layer, and the first dam includes a portion of the second via insulating layer, imd characterised in that the second via insulating layer has a first height at the first dam, and a second height less than the first height at the first stacked structure and the second stacked structure.