A display apparatus comprising: a substrate on which a first area, a second area and a bending area between the first area and the second area are defined, wherein the substrate is bent or bendable in the bending area around a bending axis extending in a first direction; a display area arranged in the first area; a plurality of internal conductive lines on the substrate in the first area; a plurality of external conductive lines on the substrate in the second area; an organic material layer covering the bending area and covering at least a portion of the plurality of internal conductive lines and at least a portion of the plurality of external conductive lines; and a plurality of connection lines on the organic material layer and connecting the plurality of internal conductive lines to the plurality of external conductive lines, respectively, wherein a plurality of organic through-holes is defined through the organic material layer, wherein the plurality of connection lines is respectively connected to the plurality of internal conductive lines through the plurality of organic through-holes, wherein the plurality of organic through-holes comprises a plurality of first organic through-holes (160h1) arranged in the first direction, characterized in that the plurality of organic through-holes further comprises a plurality of second organic through-holes (160h2) arranged in the first direction and spaced apart from the plurality of first organic through-holes (160h1), wherein connection lines which connect the plurality of second organic through-holes (160h2), are between the plurality of first organic through-holes (160h1); and wherein an upper surface of the organic material layer arranged between the plurality of first organic through-holes (160h1) has a convex curved shape, wherein an upper surface of the organic material layer has a curved surface and a height that is largest in the middle and gradually decreases toward the first organic through-holes (160h1). a substrate on which a first area, a second area and a bending area between the first area and the second area are defined, wherein the substrate is bent or bendable in the bending area around a bending axis extending in a first direction; a display area arranged in the first area; a plurality of internal conductive lines on the substrate in the first area; a plurality of external conductive lines on the substrate in the second area; an organic material layer covering the bending area and covering at least a portion of the plurality of internal conductive lines and at least a portion of the plurality of external conductive lines; and a plurality of connection lines on the organic material layer and connecting the plurality of internal conductive lines to the plurality of external conductive lines, respectively, wherein a plurality of organic through-holes is defined through the organic material layer, wherein the plurality of connection lines is respectively connected to the plurality of internal conductive lines through the plurality of organic through-holes, wherein the plurality of organic through-holes comprises a plurality of first organic through-holes (160h1) arranged in the first direction, characterized in that the plurality of organic through-holes further comprises a plurality of second organic through-holes (160h2) arranged in the first direction and spaced apart from the plurality of first organic through-holes (160h1), wherein connection lines which connect the plurality of second organic through-holes (160h2), are between the plurality of first organic through-holes (160h1); and wherein an upper surface of the organic material layer arranged between the plurality of first organic through-holes (160h1) has a convex curved shape, wherein an upper surface of the organic material layer has a curved surface and a height that is largest in the middle and gradually decreases toward the first organic through-holes (160h1).