Sony develops OLED display that can roll around a pencil

Sony has announced the development of a rollable OTFT-driven OLED display that can be wrapped around a cylinder, such as a pencil.

The new screen is super-flexible to allow it to be repeatedly rolled up, but it’s also sturdy enough to still show images. It has a 4.1-inch full colour screen with a resolution of 432×240 pixels.

The new technology was achieved by integrating OTFTs and OLEDs on an ultra-thin 20 μm thick flexible substrate, along with soft organic insulators.

This is not the first flexible screen that Sony has developed. It had previously made a screen that could be bent slightly like a deck of cards. Being rolled up completely, however, is another story and has only been achieved now that Sony has developed these new organic semiconductors.

While Sony has not stated exactly what it will use the new displays for, it has indicated that they may hit the mobile device market. Indeed, the size of the screen itself supports this, suggesting we may have some kind of rollable screen on smartphones in the near future. This may be used to save space or offer bigger screens on small devices by allowing users to stretch the screen out and roll it up when not in use.

This is just one of many recent display advancements, such as Samsung’s attempts to make semi-transparent screens. At some stage we may see a combination of them all.

Sony plans to reveal its rollable screen later today at the Society for Information Display (SID) conference in Seattle.