The Philips 272G5 has a maximum contrast ratio of 80000000:1. That's over four times the contrast ratio of a 20000000:1 PC monitor, which is the most frequently found contrast ratio. Across all comparable spec PC screens that came out more than two years ago the worst contrast ratio is Mega Contrast and the best is 100000000:1.
Alternative LCD screens that have an 80000000:1 dynamic contrast ratio currently available that you might also want to look at include the AOC u3477 ($599.99), or the Philips 272G5DJEB which has a better Rating.
LCD screens with a higher contrast ratio that might be worth looking at include the Acer K272HU ($227.99) (100000000:1 and higher rated), or the Asus PB287 ($344.99) (100000000:1 and higher rated).