A display apparatus comprising: a substrate comprising a bending area located between a first area and a second area and bent in the bending area; a display unit arranged over an upper surface of the substrate and located in the first area; a protection film located over a lower surface of the substrate and comprising a protection film base; and a bending protection layer located over an upper surface of the substrate and comprising a first bending protection layer and a second bending protection layer and corresponding to the bending area, wherein the protection film has an opening corresponding to the bending area or at least a part of the first area, wherein the first bending protection layer is arranged over at least a part of a boundary of the opening or over an outside of the boundary of the opening, and at least a part of the second bending protection layer is arranged over an inside of the boundary of the opening, and wherein the protection film further comprises a viscous layer; and the display apparatus further comprising: an inorganic insulating layer arranged over the substrate; a first conductive layer extending from the first area to the second area via the bending area and arranged over the inorganic insulating layer; and second conductive layers (213a, 213b) arranged in the first area or the second area, wherein the first conductive layer across the bending area includes a material of a high elongation percentage, the second conductive layers (213a, 213b) having a lower elongation percentage than the first conductive layer and including a material having an electrical/physical characteristic different from the first conductive layer characterized in that an organic material layer is arranged between the inorganic insulating layer and the first conductive layer and overlapping the bending area, and the inorganic insulating layer has a groove or an opening in an area in which the inorganic insulating layer overlaps the organic material layer so that the organic material layer fills the groove or the opening. a substrate comprising a bending area located between a first area and a second area and bent in the bending area; a display unit arranged over an upper surface of the substrate and located in the first area; a protection film located over a lower surface of the substrate and comprising a protection film base; and a bending protection layer located over an upper surface of the substrate and comprising a first bending protection layer and a second bending protection layer and corresponding to the bending area, wherein the protection film has an opening corresponding to the bending area or at least a part of the first area, wherein the first bending protection layer is arranged over at least a part of a boundary of the opening or over an outside of the boundary of the opening, and at least a part of the second bending protection layer is arranged over an inside of the boundary of the opening, and wherein the protection film further comprises a viscous layer; and the display apparatus further comprising: an inorganic insulating layer arranged over the substrate; a first conductive layer extending from the first area to the second area via the bending area and arranged over the inorganic insulating layer; and second conductive layers (213a, 213b) arranged in the first area or the second area, wherein the first conductive layer across the bending area includes a material of a high elongation percentage, the second conductive layers (213a, 213b) having a lower elongation percentage than the first conductive layer and including a material having an electrical/physical characteristic different from the first conductive layer characterized in that an organic material layer is arranged between the inorganic insulating layer and the first conductive layer and overlapping the bending area, and the inorganic insulating layer has a groove or an opening in an area in which the inorganic insulating layer overlaps the organic material layer so that the organic material layer fills the groove or the opening.