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Samsung demonstrates bendable phone screen



Published: Fri, January 11, 2013 @ 12:00 a.m.

Associated Press

LAS VEGAS

By showing off a phone with a flexible screen, Samsung is hinting at a day when we might fold up our large phone or tablet screens as if they were maps.

The Korean electronics company provided a glimpse of such a device at a keynote speech Wednesday at the International CES gadget show in Las Vegas. It’s an annual showcase of the latest TVs, computers and other consumer- electronic devices.

WHAT IT IS: Brian Berkeley, head of Samsung Electronics Co.’s display lab in San Jose, Calif., demonstrated a phone that consists of a matchbox-sized hard enclosure, with a paper-thin, flexible color screen attached to one end. The screen doesn’t appear flexible enough to fold in half, but it could bend into a tube.

The company also showed a video of a future concept, with a phone-sized device that opens up like a book, revealing a tablet-sized screen inside.

HOW IT WORKS: The screen uses organic light-emitting diodes, or OLEDs. Only a thin layer of these chemicals is needed to produce a bright, colorful screen. They’re used in many Samsung phones already, though with glass screens. For the bendable phone, Samsung laid the chemicals over thin plastic instead of glass.

WHY YOU’D WANT IT: You could pack a bigger screen in your pocket. In a more-conventional application, Berkeley demonstrated a phone with a display that’s rigid but bent around the edges of the device, so it can show incoming messages even with a cover over the main screen.

WHY IT MIGHT NOT WORK: It’s tough to use a touch screen if it bends away from your finger. OLED chemicals are extremely sensitive to oxygen, so they need to be completely sealed off from the air. Volume production of flexible displays that remain airtight has stumped engineers so far. Samsung’s screens aren’t yet flexible enough to fold, just bend.

AVAILABILITY: Samsung didn’t say anything about when flexible displays might be commercialized.


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