A display device comprising: a display panel including a bending area; and a first passivation film and a second passivation film, which are disposed on a first surface of the display panel to be spaced apart from each other, the second passivation film includes a first flat portion and a first stepped portion overlapping the bending area, and a thickness of the first stepped portion is less than a thickness of the first flat portion; wherein the display panel further includes a first flat area and a second flat area, which are adjacent to the bending area, characterised in that the bending area includes: a first bending area adjacent to the first flat area; a second bending area adjacent to the second flat area; and a third bending area between the first bending area and the second bending area, wherein the first bending area extends from the first flat area to bend in a first direction, the second bending area extends from the second flat area to bend in the first direction, and the third bending area is bent to connect the first bending area and the second bending area; the first stepped portion of the second passivation film overlaps the second bending area. a display panel including a bending area; and a first passivation film and a second passivation film, which are disposed on a first surface of the display panel to be spaced apart from each other, the second passivation film includes a first flat portion and a first stepped portion overlapping the bending area, and a thickness of the first stepped portion is less than a thickness of the first flat portion; wherein the display panel further includes a first flat area and a second flat area, which are adjacent to the bending area, characterised in that the bending area includes: a first bending area adjacent to the first flat area; a second bending area adjacent to the second flat area; and a third bending area between the first bending area and the second bending area, wherein the first bending area extends from the first flat area to bend in a first direction, the second bending area extends from the second flat area to bend in the first direction, and the third bending area is bent to connect the first bending area and the second bending area; the first stepped portion of the second passivation film overlaps the second bending area. the display panel further includes a first flat area and a second flat area, which are adjacent to the bending area, characterised in that the bending area includes: a first bending area adjacent to the first flat area; a second bending area adjacent to the second flat area; and a third bending area between the first bending area and the second bending area, wherein the first bending area extends from the first flat area to bend in a first direction, the second bending area extends from the second flat area to bend in the first direction, and the third bending area is bent to connect the first bending area and the second bending area; the first stepped portion of the second passivation film overlaps the second bending area. a first bending area adjacent to the first flat area; a second bending area adjacent to the second flat area; and a third bending area between the first bending area and the second bending area, wherein the first bending area extends from the first flat area to bend in a first direction, the second bending area extends from the second flat area to bend in the first direction, and the third bending area is bent to connect the first bending area and the second bending area; the first stepped portion of the second passivation film overlaps the second bending area.