Touch screen monitor screen size 21 inches max resolution 1 920 x 1 080 pixel response time 14 ms aspect ratio 169 contrast ratio typical 1 0001 brightness 225 cdm widescreen dot pitch 0 242 mm viewing angle 178178 pixel density 1049 ppi horizontal frequency range 31 5 80 khz vertical frequency range 50 75 hz number of dvi inputs 1 number of vga inputs 1 convenience features multilingual osd wall mountable suitable for office dvi sp