By Adam Clark Estes

The most advanced LED screens look amazing compared to what was on the market even a couple of years ago. But a Princeton engineer found a cheap new way of making LEDs not only brighter and more efficient, but also …

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Source:: http://feeds.gawker.com/~r/gizmodo/full/~3/xUrs7llXMTw/new-leds-promise-to-make-your-smartphone-screen-400-per-1639556748