When will we see a transparent smartphone? It's a question that's been circulating for years, thanks to films like Minority Report and Iron Man 2 that sparked dreams of a diaphanous mobile future, and more than a decade later, it's one that's still without an answer. Sony Ericsson's Xperia Pureness fell flat when it hit the market in 2009, and subsequent concept designs never came to fruition, leaving only a trail of dashed hopes and semi-transparent feature phones in their wake.
Now, Taiwan-based Polytron Technologies is trying to revive the dream, with a transparent multi-touch display that it's begun marketing to OEMs. As Mobile Geeks reports, the key to Polytron's prototype is its so-called Switchable Glass technology — a conductive OLED that uses liquid crystal molecules to display images. When the phone is powered off, these molecules form a white cloudy composition, but once activated with electric current (flowing through transparent wires), they realign to form text, icons, or other imagery.
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