Butterfly wings are the key to glare-free phone displays

Butterflies have proven to be a surprising source of inspiration for technology, and that trend isn't about to slow down any time soon. German researchers have discovered that irregular, nanoscopic structures on the glasswing butterfly's namesake transparent wings eliminate most reflections at any angle -- perfect for phones, camera lenses and most any other device where display glare is a problem. The scientists have yet to completely recreate this surface in the lab, but they foresee a future where you're not struggling to read your smartphone outdoors. And the kicker? Prototypes are already self-cleaning and water-repellant, so you wouldn't need extra coatings to keep your screens largely smudge-free.

[Image credit: Radwanul Hasan Siddique, KIT]