A display panel comprising: a plurality of subpixels arrayed as a matrix; a plurality of data lines and a plurality of gate lines for driving the plurality of subpixels; a plurality of phototransistors respectively comprising a gate electrode to which a photo-control signal (Vsto) is applied, a first electrode to which a photo-driving signal (Vdrv) is applied, and a second electrode serving as a signal output node outputting a signal in response to illumination light; and a plurality of photo-driving lines and a plurality of photo-control lines through which the photo-driving signal (Vdrv) and the photo-control signal (Vsto) are transferred to the plurality of phototransistors, a first subpixel row, a second subpixel row, a third subpixel row, and a fourth subpixel row, sequentially arrayed and respectively comprising subpixels among the plurality of subpixels, wherein the plurality of phototransistors include a first phototransistor and a second phototransistor disposed between the first subpixel row and the second subpixel row, a first photo-driving line among the plurality of photo-driving lines and a first photo-control line among the plurality of photo-control lines are disposed between the first subpixel row and the second subpixel row, the first photo-driving line allowing the photo-driving signal (Vdrv) to be transferred to the first electrode of each of the first phototransistor and the second phototransistor therethrough, the first photo-control line allowing the photo-control signal (Vsto) to be transferred to the gate electrode of each of the first phototransistor and the second phototransistor therethrough. a plurality of subpixels arrayed as a matrix; a plurality of data lines and a plurality of gate lines for driving the plurality of subpixels; a plurality of phototransistors respectively comprising a gate electrode to which a photo-control signal (Vsto) is applied, a first electrode to which a photo-driving signal (Vdrv) is applied, and a second electrode serving as a signal output node outputting a signal in response to illumination light; and a plurality of photo-driving lines and a plurality of photo-control lines through which the photo-driving signal (Vdrv) and the photo-control signal (Vsto) are transferred to the plurality of phototransistors, a first subpixel row, a second subpixel row, a third subpixel row, and a fourth subpixel row, sequentially arrayed and respectively comprising subpixels among the plurality of subpixels, wherein the plurality of phototransistors include a first phototransistor and a second phototransistor disposed between the first subpixel row and the second subpixel row, a first photo-driving line among the plurality of photo-driving lines and a first photo-control line among the plurality of photo-control lines are disposed between the first subpixel row and the second subpixel row, the first photo-driving line allowing the photo-driving signal (Vdrv) to be transferred to the first electrode of each of the first phototransistor and the second phototransistor therethrough, the first photo-control line allowing the photo-control signal (Vsto) to be transferred to the gate electrode of each of the first phototransistor and the second phototransistor therethrough.