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ANALYSIS ON SOME RECENT TRENDS IN CYBER MEDIA |
E-paper (sometimes called radio paper or just electronic paper) is a portable, reusable storage and display medium that looks like paper but can be repeatedly written on (refreshed) - by electronic means - thousands or millions of times. E-paper will be used for applications such as e-books, electronic newspapers, portable signs, and foldable, rollable displays. Information to be displayed is downloaded through a connection to a computer or a cell phone, or created with mechanical tools such as an electronic "pencil".
There are a number of different technologies being developed: Xerox, in partnership with 3M, has created an e-paper called Gyricon that is expected to be marketed in the not-distant future and Lucent, in partnership with a company called E Ink, is working on a device (also called E Ink) that is expected to be available within the next few years.
Both of these technologies enable a black (or other color) and white display; Philips is working on a type of e-paper that will be full-color, but say that the product is at least 10-15 years away. |
The Gyricon version consists of a single sheet of transparent plastic, containing millions of tiny bichromal (two colors) beads in oil-filled pockets. Text and images are displayed through a rotation of the beads that occurs in response to an electrical impulse: a full rotation displays as black or white, and a partial rotation displays as gray shades. Like traditional paper, Gyricon has - and needs - no lighting component.
Nick Sheridon at Xerox’s Palo Alto Research Center first developed electronic paper in the 1970s. The first electronic paper, called Gyricon, consisted of tiny, statically charged balls that were black on one side and white on the other. The "text" of the paper was altered by the presence of an electric field, which turned the balls up or down.
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