Philips Electronics is showing a prototype electronic reader whose display can be rolled out to a larger size, at Germany’s IFA (Internationale Funkausstellung) computer show.

The Readius handheld device is equipped with a 5in monochrome QVGA 320x240-pixel display that provides paper-like viewing.

Using a ‘bi-stable electrophoretic’ effect from E Ink, the display consumes little power and is easy to use, even in bright daylight, according to Philips. Once users have finished reading, they can roll the display back into the pocket-size device, which measures 100x60x20mm.

The prototype screen is based on Philips' Polymer Vision PV-QML5 rollable display design.

Philips sees demand for the new rollable technology coming from the mobile sector, which is looking for ways to provide larger screens in ever-smaller devices.