A display device comprising: a first pixel area including first pixels and first data lines coupled to the first pixels; a second pixel area including second pixels and second data lines coupled to the second pixels, and having a length less than a length of the first pixel area with respect to a first direction, the second pixel area being disposed on one side of the first pixel area with respect to a second direction; a first non-pixel area disposed on the one side of the first pixel area with respect to the second direction such that the first non-pixel area borders the first and second pixel areas; a data driver configured to output data signals corresponding to the first and second pixels through first and second output lines, respectively; and a switch unit coupled between the first and second output lines and the first and second data lines, characterized in that the switch unit comprises: a first switch unit comprising a demultiplexer, demux, configured to alternately couple each of the first output lines to a plurality of corresponding first data lines; and a second switch unit configured to couple the second output lines to the respective different second data lines, wherein the second switch unit comprises a plurality of second switches configured to couple the second output lines with the second data lines at a ratio of 1:1, wherein the first data lines extend from the first pixel area in the first direction and are coupled to the data driver through the first switch unit, and wherein the second data lines extend from the second pixel area in the first direction, pass through the first non-pixel area, and are coupled to the data driver through the second switch unit, wherein the first data lines are arranged in the first pixel area at a first interval, and wherein the second data lines are arranged in at least one portion of the first non-pixel area at a second interval less than the first interval. a first pixel area including first pixels and first data lines coupled to the first pixels; a second pixel area including second pixels and second data lines coupled to the second pixels, and having a length less than a length of the first pixel area with respect to a first direction, the second pixel area being disposed on one side of the first pixel area with respect to a second direction; a first non-pixel area disposed on the one side of the first pixel area with respect to the second direction such that the first non-pixel area borders the first and second pixel areas; a data driver configured to output data signals corresponding to the first and second pixels through first and second output lines, respectively; and a switch unit coupled between the first and second output lines and the first and second data lines, characterized in that the switch unit comprises: a first switch unit comprising a demultiplexer, demux, configured to alternately couple each of the first output lines to a plurality of corresponding first data lines; and a second switch unit configured to couple the second output lines to the respective different second data lines, wherein the second switch unit comprises a plurality of second switches configured to couple the second output lines with the second data lines at a ratio of 1:1, a first switch unit comprising a demultiplexer, demux, configured to alternately couple each of the first output lines to a plurality of corresponding first data lines; and a second switch unit configured to couple the second output lines to the respective different second data lines, wherein the second switch unit comprises a plurality of second switches configured to couple the second output lines with the second data lines at a ratio of 1:1, wherein the first data lines extend from the first pixel area in the first direction and are coupled to the data driver through the first switch unit, and wherein the second data lines extend from the second pixel area in the first direction, pass through the first non-pixel area, and are coupled to the data driver through the second switch unit, wherein the first data lines are arranged in the first pixel area at a first interval, and wherein the second data lines are arranged in at least one portion of the first non-pixel area at a second interval less than the first interval.