The latest digital display from Canon promises to make screens almost paper thin, writes Eric Doyle.
Last week, the company demonstrated a prototype design for as a plastic screen that is just 0.25mm thick. Unlike LCD screens, which contain liquid crystal sandwiched between glass or between plastic and glass, Canon's display uses a toner between two plastic sheets. This not only allows the thinner screen but also means that it is less fragile.
The screen works by exploiting electrostatic attraction and repulsion of the toner to form an image. This means that the image remains visible even when the screen is switched off - so power only needs to be applied when the image changes.
Production volumes of the screen are expected to hit the market late next year for monochrome electronic books and newspapers. Canon hopes to bring a colour version to market by 2007.