Samsung demos amazing folding phone

A video has appeared online of what's claimed to be an OLED display able to fold itself in half to become a mobile phone.

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Initially, the phone - which it's thought was recently seen on a Samsung stand at a display tech trade show in Japan - looks more like a portable media player because of its large - 5in or so - display.

But suddenly the phone automatically folds itself in half, revealing a secondary - yet much smaller - screen on the opposite side. After a few seconds the device then opens itself up again.

When closed, a Samsung emblem can clearly be seen underneath the smaller screen. A menu of icons can be seen on the smaller screen, suggesting the front panel is touch-sensitive. What appear to be the usual call make and break buttons are also built into the unit's front.

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