General What does "Reduce White Point" do exactly in technical terms?

curiosity

macrumors regular
Original poster
Sep 3, 2013
188
0
I would like to know what the iOS 7.1 option "Reduce White Point" really does. How and if it makes use of pixels, backlight, refresh rates, pulse width modulation etc. to make the screen appear less bright. Please share your knowledge. The more detailed and in-depth, the better.