Electronic paper, made of charge-sensitive “ink” particles embedded in a thin plastic film, promises lightweight, flexible displays that consume minimal battery power. But e-paper has typically required a layer of electronics behind the film to turn the particles on and off, adding bulk and cost. Now researchers at the Palo Alto Research Center have developed a handheld device that can print information from a computer directly onto e-paper; the device activates the ink particles electrostatically as it’s swiped across the paper’s surface. PARC researchers plan to use the device initially to print on large e-paper whiteboards. In the future, the device could also be used to scan information from the whiteboard into a computer. “The idea of a scanning wand in conjunction with electronic paper is a really important step,” says Nicholas Sheridon, electronic-paper pioneer and research director at Ann Arbor, MI-based PARC spinoff Gyricon. PARC has multiple patents pending on the technology.
Videoconferencing by the Numbers
How a Russian cyberwar in Ukraine could ripple out globally
Soldiers and tanks may care about national borders. Cyber doesn't.
Meet Altos Labs, Silicon Valley’s latest wild bet on living forever
Funders of a deep-pocketed new "rejuvenation" startup are said to include Jeff Bezos and Yuri Milner.
Meta’s new learning algorithm can teach AI to multi-task
The single technique for teaching neural networks multiple skills is a step towards general-purpose AI.
Going bald? Lab-grown hair cells could be on the way
These biotech companies are reprogramming cells to treat baldness, but it’s still early days.
Get the latest updates from
MIT Technology Review
Discover special offers, top stories, upcoming events, and more.