Touch screen monitor led monitor hd monitor 10 touch points capacitive touch display windows 8 compatible screen size 23 inches max resolution 1 920 x 1 080 pixel response time 5 ms aspect ratio 169 contrast ratio dynamic 80 000 0001 contrast ratio typical 1 0001 brightness 250 cdm widescreen dot pitch 0 265 mm viewing angle 170160 pixel density 9578 ppi hdcp enabled horizontal frequency range 31 80 khz vertical frequency range 56