I started wondering about this when I realized most websites I visit have white backgrounds, and I know that the screen is usually responsible for most of the battery usage. Since I can't change the background in those sites, I might at least switch my wallpaper to a black one.
Most (all?) phones need back-lighting to brighten the screen when needed. Since that back-lighting consumes battery, is it correct to state that a white screen consumes energy at a faster rate than a black one? (assuming the same brightness level in the settings)
I'm assuming that a white screen needs stronger back-lighting, but I don't know if it's the case.
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