The highest contrast ratio of the Acer S200H is 100000000:1. That's over five times the contrast ratio of the most frequently found dynamic contrast ratio of 20000000:1.
This LCD screen's contrast ratio (100000000:1) is in fact the best contrast ratio across all PC screens of a similar age and type to the S200H.
The worst contrast ratio across similar types of LCD screen is Mega Contrast.
We compared all the other PC screens that have a 100000000:1 dynamic contrast ratio to this PC display and we think the 192HQL, the V193, and the 206HQ ($114.99) all from Acer which has a better Rating is also worth considering.