The highest contrast ratio of the AOC A2072 is 50000000:1. That's over two times the contrast ratio of the most common dynamic contrast ratio of 20000000:1. The contrast ratio of all similar spec PC monitors that have been around for a comparable time to the A2072 ranges from Ultra Contrast (worst) to 100000000:1 (best).
We compared this PC monitor to all the other PC monitors that have a 50000000:1 dynamic contrast ratio and we think because of it's better review score, the AOC L2267 is also worth considering.
If the contrast ratio of this flatpanel monitor is too low for you then you might want to consider the VK228H (£54.25) (80000000:1), or the VS207 (£79.32) (80000000:1) both from Asus which also has a higher Rating.