The highest contrast ratio of the Acer H277HU is 100000000:1. That's over twenty times the contrast ratio of a 5000000:1 flatpanel monitor, which is the most frequently found contrast ratio.
A 100000000:1 dynamic contrast ratio is actually the best contrast ratio across all comparable spec PC monitors that have been available for around the same time as the H277HU.
The worst contrast ratio across similar types of flatpanel monitor is Mega Contrast.
We compared this flatpanel monitor to all the other PC screens that have a 100000000:1 dynamic contrast ratio and we think the Acer B326 ($572.99) which is cheaper; or the MG279Q ($392.99), and the MG278Q ($417.99) both from Asus which has a better Rating are also worth considering.