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Article: pricey new hi-def sets raise ante; SED Screens Offer Even Sharper Display.(surface-conduction electron-emitter display)
- Article from:
- TelevisionWeek
- Article date:
- January 1, 2007
- Author:
CopyrightCOPYRIGHT 2007 Crain Communications, Inc. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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Byline: NATALIE FINN
In September 2005 a new flat-panel screen debuted at the Canon Expo that promised a brighter, sharper and clearer display than the average LCD or plasma HDTV could provide.
Canon's surface-conduction electron-emitter display technology works like cathode ray tube technology, only miniaturized. While cathode-ray tube technology relies on a long vacuum tube emitting electrons into a phosphor-coated screen, SED crams thousands of tiny vacuums inside a 4- to 5-inch flat-panel display and uses as many electron emitters as there are pixels on the screen. Less power is needed because the electrons don't have to travel as far.
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