The Acer H276HL has a maximum contrast ratio of 100000000:1. That's over five times the contrast ratio of a 20000000:1 PC display, which is the most frequently found contrast ratio.
This flatpanel monitor's contrast ratio (100000000:1) is actually the best contrast ratio amongst all PC monitors of this age and spec.
A Mega Contrast dynamic contrast ratio is the worst contrast ratio amongst comparable types of flatpanel monitor.
We think you might also be interested in some of the other flatpanel monitors that have a 100000000:1 dynamic contrast ratio currently available including the Asus ML248, or the Acer K272HU ($227.99) which is cheaper; or the Asus PB287 ($343.99) which has a better Rating.