The DELL P2417H has a maximum contrast ratio of 4000000:1. That's 96% less contrast ratio than a 100000000:1 PC monitor, which is the most frequently found contrast ratio. Across all medium monitors that were launched in the last 12 months the best contrast ratio is 100000000:1 and the worst is Mega Contrast.
We compared this flatpanel monitor to all the other LCD screens that have a 4000000:1 dynamic contrast ratio and we think cheaper LCD screens such as the DELL P2317H ($174.35) is also worth considering.
If the contrast ratio of this PC display is not high enough for you then you might also want to look at the HP Z22n ($209.52) (5000000:1) which is also cheaper.