A display device comprising: a substrate; a display unit disposed on the substrate and comprising a pixel circuit and a display element electrically connected to the pixel circuit; a driving circuit (20, 30) disposed outside of the display unit, the driving circuit (20, 30) comprising a thin film transistor; an inorganic insulating layer disposed on the driving circuit (20, 30); a power supply line disposed on the inorganic insulating layer, the power supply line overlapping the driving circuit (20, 30), and connected to a common electrode of the display element; an encapsulation substrate disposed on the power supply line and facing the substrate; and a sealing material interposed between the substrate and the encapsulation substrate and overlapping the driving circuit (20, 30), the display device further comprising a first organic insulating layer interposed between the inorganic insulating layer and an end of the power supply line, wherein the end of the power supply line is adjacent to the display unit, and wherein an end of the first organic insulating layer is spaced apart from the sealing material with the driving circuit (20, 30) therebetween characterized in that the display device further comprises a second organic insulating layer interposed between the first organic insulating layer and a pixel electrode of the display element, wherein the second organic insulating layer comprises an end spaced apart from the sealing material with the driving circuit (20, 30) therebetween, and wherein the end of the power supply line adjacent to the display unit is covered by the second organic insulating layer. a substrate; a display unit disposed on the substrate and comprising a pixel circuit and a display element electrically connected to the pixel circuit; a driving circuit (20, 30) disposed outside of the display unit, the driving circuit (20, 30) comprising a thin film transistor; an inorganic insulating layer disposed on the driving circuit (20, 30); a power supply line disposed on the inorganic insulating layer, the power supply line overlapping the driving circuit (20, 30), and connected to a common electrode of the display element; an encapsulation substrate disposed on the power supply line and facing the substrate; and a sealing material interposed between the substrate and the encapsulation substrate and overlapping the driving circuit (20, 30), the display device further comprising a first organic insulating layer interposed between the inorganic insulating layer and an end of the power supply line, wherein the end of the power supply line is adjacent to the display unit, and wherein an end of the first organic insulating layer is spaced apart from the sealing material with the driving circuit (20, 30) therebetween characterized in that the display device further comprises a second organic insulating layer interposed between the first organic insulating layer and a pixel electrode of the display element, wherein the second organic insulating layer comprises an end spaced apart from the sealing material with the driving circuit (20, 30) therebetween, and wherein the end of the power supply line adjacent to the display unit is covered by the second organic insulating layer.