Apple aims to improve display efficiency with ‘light recycling’

Future Apple displays, including technology in the “Apple Glass,” could take currently wasted light energy and produce crisper screens, while also saving power and battery life.
Future Apple displays, including AR ones, could be made crisper and use less energy

Displays and bulbs typically emit light in more wavelengths, and in more directions, than a user will see. Apple is looking to minimize unseen, unused energy and so produce displays that are more efficient — and consequently save power.

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