The Acer B286 has a maximum contrast ratio of 100000000:1. That's over five times the contrast ratio of the most common dynamic contrast ratio of 20000000:1.
A 100000000:1 dynamic contrast ratio is actually the best contrast ratio across all comparable spec LCD screens that came out more than two years ago.
A Mega Contrast dynamic contrast ratio is the worst contrast ratio across comparable types of PC screen.
Alternative PC screens that have a 100000000:1 dynamic contrast ratio currently available which you might also want to look at include cheaper PC screens such as the Acer V276 ($174.39).