Now here's an incredible idea : A super-thin transparent screen coating for smartphones that could continuously top off your battery with solar power. The technology is coming out of a small company called Wysips , which has perfected a transparent coating less than 100 microns deep that captures enough energy from the sun to generate electrical power. It relies on the application of super-thin strips of photovoltaic cells laid down on a display screen, and then a precise layer of cylindrical lenticular lenses deposited on top
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