Touch screen monitor led monitor series iiyama prolite screen size 15 inches max resolution 1 024 x 768 pixel lcd technology tn response time 8 ms aspect ratio 43 contrast ratio typical 5001 brightness 225 cdm dot pitch 0 298 mm viewing angle 140125 pixel density 8533 ppi hdcp enabled horizontal frequency range 31 60 khz vertical frequency range 56 75 hz number of dvi inputs 1 number of vga inputs 1 monitor connection usb integra