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There is finally a way to keep your private phone truly private. Celal Göger, a phone repair store owner in Turkey, invented an “invisible” phone screen. He created an app that turns the iPhone screen white, and a pair of special glasses that can unscramble the images—made possible by a chip inserted in the glasses.

Celal says he is trying to copyright the technology so he can commercialize it. His next step is to make the chip adaptable for use with any pair of glasses.