A display device comprising: a display substrate including a plurality of subpixels (SP), respectively provided in a plurality of subpixel areas defined by a plurality of data lines (DL) and a plurality of gate lines (GL), and a data pad part (DPP) connected to each of the plurality of data lines (DL) in a one-to-one relationship, and a data routing film adhered to the data pad part (DPP), the data routing film including a plurality of data routing lines (DRL) respectively connected to the plurality of data lines (DL),wherein the data routing film has a first area (A1) adhered to the display substrate to cover a portion of the data pad part (DPP), a second area (A2) adhered to a first side of the display substrate , and a third area (A3) adhered to a rear surface of the display substrate overlapping the data pad part (DPP), characterized in that the display substrate comprises a first display area (AA1) and a second display area (AA2) surrounding the first display area (AA1), wherein a plurality of first unit pixels (UP1) is provided in the first display area (AA1), each first unit pixel (UP1) including a plurality of subpixels (SP), the plurality of first unit pixels (UP1) arranged at a reference pixel pitch being a distance between center portions of two adjacent unit pixels, and a plurality of second unit pixels (UP2) is provided in the second display area (AA2), each second unit pixel (UP2) including a plurality of subpixels (SP) and having a size less than a size of each of the plurality of first unit pixels (UP1), a distance between a center of each of the plurality of second unit pixels (UP2) and a side of the display substrate being equal to or less than half of the reference pixel pitch. a display substrate including a plurality of subpixels (SP), respectively provided in a plurality of subpixel areas defined by a plurality of data lines (DL) and a plurality of gate lines (GL), and a data pad part (DPP) connected to each of the plurality of data lines (DL) in a one-to-one relationship, and a data routing film adhered to the data pad part (DPP), the data routing film including a plurality of data routing lines (DRL) respectively connected to the plurality of data lines (DL),wherein the data routing film has a first area (A1) adhered to the display substrate to cover a portion of the data pad part (DPP), a second area (A2) adhered to a first side of the display substrate , and a third area (A3) adhered to a rear surface of the display substrate overlapping the data pad part (DPP), characterized in that the display substrate comprises a first display area (AA1) and a second display area (AA2) surrounding the first display area (AA1), wherein a plurality of first unit pixels (UP1) is provided in the first display area (AA1), each first unit pixel (UP1) including a plurality of subpixels (SP), the plurality of first unit pixels (UP1) arranged at a reference pixel pitch being a distance between center portions of two adjacent unit pixels, and a plurality of second unit pixels (UP2) is provided in the second display area (AA2), each second unit pixel (UP2) including a plurality of subpixels (SP) and having a size less than a size of each of the plurality of first unit pixels (UP1), a distance between a center of each of the plurality of second unit pixels (UP2) and a side of the display substrate being equal to or less than half of the reference pixel pitch. <EOS>