Public display open pluggable specification ops compliant expansion slot tilematrix technology series nec multisync v screen size 55 inches max resolution 1 920 x 1 080 pixel lcd technology amva3 response time 8 ms aspect ratio 169 contrast ratio typical 4 0001 brightness 450 cdm widescreen dot pitch 0 634 mm viewing angle 178178 pixel density 4005 ppi hdcp enabled horizontal frequency range 31 5 91 1 khz vertical frequency range 25 2