Apple has patented a method for adjusting brightness off a device according to onscreen content. This is meant to conserve power when in use.
It’s not entirely clear how this will work, but we are guessing that more important things may brighten. Maybe reading apps like Kindle for iOS can adjust slightly to reduce eyestrain. That’s just a thought. It can really be used for anything of that nature.
Of some of the patents and applications we’ve seen filed, this one sounds like one of the most likely to become a reality. Even if it does, we may not realize it’s happened, because it’s something that will occur in the background if Apple does it right.