Samsung demoed some fascinating AMOLEDs at this year's CES, including 4.5-inch flexible and 19-inch transparent displays -- neither of which, sadly, will reach the market any time soon. But the innovation train keeps on rolling, and Sammy's Advanced Institute of Technology now has a prototype foldable display, which may or may not be the same reference design spotted at FPD 2008. Its two panels have a closing radius of only 1mm, meaning they practically touch when closed, yet show no visible crease when opened. In fact, the developers performed 100,000 folding-unfolding cycles to test the junction; the negligible 6% decrease in brightness was invisible to the human eye. They used commercially-available silicone rubber to achieve that seamless look, and the prototype featured a protective glass cover which could also function as a touchscreen. Obviously there's a market for touchscreens you can fold up and put in your pocket; here's hoping Samsung can make them available sooner rather than later.

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Samsung's foldable AMOLED display: no creases, even after 100,000 tries