The AOC Q3277PQU has a maximum contrast ratio of 80000000:1. That's over sixteen times the contrast ratio of a 5000000:1 LCD screen, which is the most common contrast ratio. Across all medium monitors that were launched more than a year ago the worst contrast ratio is Mega Contrast and the best is 100000000:1.
There are a number of other flatpanel monitors that have an 80000000:1 dynamic contrast ratio currently available that you might want to look at including the AOC U3277PQU which has a better Rating.
LCD screens with a higher contrast ratio that might also be worth considering include the B326HULA (100000000:1 and higher rated), or the XF270H (100000000:1 and higher rated) both from Acer or the Asus MG278Q ($419.99) (100000000:1 and higher rated).