The highest contrast ratio of the Asus VS229 is 80000000:1. That's over four times the contrast ratio of a 20000000:1 PC monitor, which is the most common contrast ratio. The worst contrast ratio of all PC screens of this type and age is Mega Contrast and the best is 100000000:1.
We compared all the other flatpanel monitors that have an 80000000:1 dynamic contrast ratio to this PC display and we think the U2868 (£349.24), and the G2770 (£219.99) both from AOC or the Hanns.G HL226 (£89.99) which has a better Rating is also worth considering.
If the contrast ratio of this PC monitor is too low for you then you might also want to look at the Acer 276HUL (£362.40) (100000000:1 and higher rated).