The Asus VW199 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 best contrast ratio of all PC displays of this spec and age is 100000000:1 and the worst is Mega Contrast.
Alternative PC screens that have a 50000000:1 dynamic contrast ratio currently available that you might also want to look at include the Asus VE198 ($84.99) which is cheaper.
If the contrast ratio of this LCD screen is not high enough for you then you might want to consider the 176L (100000000:1 and cheaper), or the 196L ($98.99) (100000000:1 and cheaper) both from Acer or the Asus VK207 (80000000:1 and cheaper).