The AOC i2476 has a maximum contrast ratio of 50000000:1. That's over two times the contrast ratio of the most frequently found dynamic contrast ratio of 20000000:1. The worst contrast ratio of all PC displays that came out more than two years ago is Mega Contrast and the best is 100000000:1.
We think you might also be interested in some of the other flatpanel monitors that have a 50000000:1 dynamic contrast ratio currently available including the Viewsonic VX2452 ($139.99) which has a better Rating; or the AOC E2260 ($89.88) which is cheaper.
If the contrast ratio of this AOC PC screen is too low for you then you might want to consider the Asus VE228 ($90.99) (80000000:1 and cheaper) or the AOC G2460 ($249.99) (80000000:1 and higher rated).