Touch screen monitor led monitor 4k monitor 4k quad full hd resolution 3 840 x 2 160 pixels qfhd 10 touch points windows 8 compatible screen size 315 inches max resolution 3 840 x 2 160 pixel response time 8 ms aspect ratio 169 contrast ratio typical 8001 brightness 300 cdm widescreen dot pitch 0 182 mm viewing angle 176176 pixel density 13987 ppi number of displayport inputs 1 outputs audio out line out monitor connections audio in l