Touch screen monitor hd monitor series iiyama prolite screen size 55 inches max resolution 1 920 x 1 080 pixel lcd technology ips response time 12 ms aspect ratio 169 contrast ratio typical 1 1001 brightness 500 cdm widescreen dot pitch 0 4833 mm viewing angle 178178 horizontal frequency range 31 47 67 5 khz vertical frequency range 47 63 hz number of hdmi inputs 1 number of dvi inputs 1 number of vga inputs 1 function plug play