electronic paper

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electronic paper

(1) A generic term for an extremely thin flexible display that can be rolled up. There are several technologies in the works, and this type of display is expected to become mainstream by 2015.

The Smartphone in a Pen
This OLED display screen unrolled out of a pen may seem far fetched, but such products are expected to be commercialized in a few years (see OLED). (Image courtesy of Universal Display Corporation, www.universaldisplay.com)

(2) A paper-thin display technology that uses charged black and white elements oriented toward the viewer when a charge is applied and which retain their formation without power. The first electronic paper was developed at Xerox's Palo Alto Research Center (www.parc.com) in the 1970s. It used a thin sheet of Xerox Gyricon plastic, containing millions of charged beads with black and white hemispheres. When the paper was fed through a "printer," a voltage pattern was applied, and the beads were oriented toward their black or white side, or half way for gray. Although the Gyricon Media Inc. subsidiary was created to develop the technology, it never worked well enough to become a product.

Another Approach
In the 1990s, another electronic paper technology was developed at MIT Media Labs that placed the black and white elements inside a microcapsule. E Ink Corporation was created in 1997 to further develop and market the method, and it succeeded (see E Ink).

The First Electronic Paper
Nick Sheridan, who invented the electronic paper at PARC, and Fereshteh Lesani show the first roll of paper produced by 3M. (Image courtesy of Palo Alto Research Center.)

As Sharp as Paper
In 2008, Epson demonstrated a super-high-resolution prototype display using E Ink technology. At 385 dpi, this 13.4" display provides an outstanding 3104 x 4128 pixel resolution. (Image courtesy of Seiko Epson Corporation.)
References in periodicals archive ?
E Ink is the world's leading innovator of digital signage and electronic paper display technology (EPD).
One of the patent grants for Apple describes the use of a system and method about display visual content through hybrid electronic paper and video displays.
The YotaPhone, with its always- on electronic paper display on the back, was designed to solve users' frustrations with their current smartphones' "alwaysdark" screen.
Consultants who designed the system believe it to be the first in the world to link solar power and electronic paper to provide passenger information.
The Applications of Electrophoretic Electronic Paper
The new Yotaphone 2 has a 5-inch, 1080p AMOLED panel as its primary screen, and the electronic paper display on the back has been bumped up to 4.7 inches with an appreciably higher 960EaAu540 pixel resolution.
Upon its debut, the shop included items such as electronic paper airplanes and a custom-themed Jaguar.
Dan Ackerman, senior editor for CNET, explained on 'CBS This Morning' the use of an electronic paper on the phone.
The demand is expected to grow for the protection of high-performance devices such as organic electroluminescent (EL) devices, electronic paper and other next-generation devices, as well as polymer conductive materials in next-generation solar cells and organic semiconductor materials.
The RFID device has a 2.7-inch dot-matrix electronic paper display that can function without a battery, using only the power supply from the reader/writer.
It can be applied to such uses as solar devices, electronic paper (ePaper), color filters, organic light-emitting diode (OLED) lighting, large-scale sensors, and display backplanes.
Industrial Research Technology Institute, Taiwan, has invented i2R e-Paper, ITRI re-writable and re-usable electronic paper technology in an effort to reduce this consumption.

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