Butterfly wings are the key to glare-free phone displays
http://www.engadget.com/2015/04/22/butterfly-wing-glare-free-displays/
完全な無反射が実現したらいいな。
Nature: Low-reflection Wings Make Butterflies Nearly Invisible
http://www.kit.edu/kit/english/pi_2015_037_nature--low-reflection-wings-make-butterflies-nearly-invisible.php