The Samsung TC191W has a maximum contrast ratio of 1000:1. That's 100% less contrast ratio than a 20000000:1 flatpanel monitor, which is the most frequently found contrast ratio. The worst contrast ratio of all LCD screens of this age and type is Mega Contrast and the best is 100000000:1.
We compared all the other PC monitors that have a 1000:1 dynamic contrast ratio to this PC display and we think the Samsung SMT-1934 ($383.99) which is cheaper is also worth considering.
If you are looking for a PC display with a higher contrast ratio then you might also want to consider the E20T-6 (2000000:1 and cheaper), or the B19-7 (2000000:1 and cheaper) both from Fujitsu or the Philips 19S1S (25000:1 and cheaper).