Samsung showed off a prototype of its stretchable 4K AMOLED display with glasses-free 3D, measuring 9.1 inches diagonally, at last week’s Display Week 2017 conference. Today, Samsung Display’s official YouTube channel shared a video of the stretchable display in action.

Samsung has been making flexible AMOLED panels for its flagship Galaxy phones for a few years now, but this new display has the elasticity to bend in two directions. The video shows the prototype AMOLED panel as having up to 12mm of travel before returning to its original shape, without any image degradation when pressed.

Here’s the video.

Samsung says the next-generation tech might one day be used for wearable devices and more.

“Compared to conventional flexible OLEDs that can be formed in only one direction, such as bending, folding, or rolling a screen, the Samsung Display stretchable AMOLED panel can be flexed in two directions,” explains Samsung Display.

“When the screen is pressed from above, it depresses like a rubber balloon, then returns to its original flat shape. The screen when stretched up or down, even when pressed, has sufficient elasticity to recover.”

Apple is said to be making a major switch from the traditional LCD panels to the more energy-efficient AMOLED display technology with iPhone 8, but the move is said to be short-lived: the Cupertino giant has been researching even more power efficient micro-LED screens, based on its 2014 acquisition of micro-LED experts LexVue.

The iPhone maker could kick off trial production of its next-generation micro-LED display panels by the end of this year, according to supply chain reports, meaning this technology most likely won’t debut before iPhone 9 in 2018 although Apple Watch Series 3 could debut this year with a micro-LED display.

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