The highest contrast ratio of the Philips 288P6 is 50000000:1. That's over ten times the contrast ratio of the most common dynamic contrast ratio of 5000000:1. The best contrast ratio of all PC displays of this spec and age is 100000000:1 and the worst is Mega Contrast.
We think you might also be interested in some of the other PC monitors that have a 50000000:1 dynamic contrast ratio currently available including because of it's better review score, the BDM3270, the 241P6VPJKEB, or the BDM3270QP all from Philips.
If you want a flatpanel monitor with a higher contrast ratio then you might also want to consider the AOC U3277PQU (80000000:1), the Asus MG278Q ($418.99) (100000000:1), or the Acer XF270H (100000000:1) which is also higher rated.