A display device with a display panel including a display area and a plurality of pixels arranged in the display area, a photosensor layer including a sensing area overlapping the display area and a plurality of photosensors arranged in the sensing area, a light-guiding layer arranged between the display panel and the photosensor layer, the light-guiding layer includes a plurality of light-transmission holes corresponding to the plurality of photosensors, wherein the light-guiding layer includes a transparent tube bundle comprising a plurality of transparent tubes forming the light-transmission holes.