Flexible displays are nothing new. However, most of them don't live up to the dreams of flexible tech -- they may only bend in a limited way. Samsung thinks it can do better. It just unveiled a 9.1-inch prototype OLED display that's stretchable in seemingly every way imaginable: you can bend, roll and even dent it (up to half an inch deep) knowing that it'll revert to its original form. The technology is still very young, but Samsung believes the stretchy screen will be useful for everything from wearables to in-car displays. Imagine a very thin smartwatch that can take some knocks without smashing into pieces.