Abstract: A display device includes a substrate, a circuit layer, an element layer, and a sealing layer. The substrate includes a main area and a sub-area. The main area includes a display area and a non-display area. The non-display area includes a dam area in which one or more dam portions surrounding the display area are arranged, and a junction area surrounding the dam area. The sub-area includes a bending area, a first sub-area, and a second sub-area. The circuit layer includes a power supply line. The power supply line includes a main supply portion disposed in the non-display area, a sub-connection portion extending from the main supply portion to the sub-area, and a branch portion disposed in the junction area and protruding from one side of the sub-connection portion. The branch portion is spaced apart from a bank covering a bending hole of the bending area.