Polytron, Maker of Switchable Privacy Glass Aims For Transparent Smartphone

Taiwan's Polytron Techologies, a subsidiary of US firm Polytronix, wants to change the way we look at (and through) glass, one of mankind's oldest inventions. Polytron makes giant touchscreens, selectively opaque glass, projection glass, holographic glass, LED-impregnated glass, color-changing glass, rainbow glass, glowing glass, and the mysterious Polyheat glass.