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20050105 Wednesday January 05, 2005
New Diamond TVs Computers

Diamonds may soon a boy's best friend, too!

While the Comsumer Electronics Show may be touting the newest plasma TVs, they could all be obsolete if new carbon nanotube TVs make it to market. CNET reports that new "field effect displays" (FED) could produce CRT quality pictures while staying thin like a flat panel plasma TV. The basic idea is create mini CRTs, one per pixel, by firing electrons through tiny diamonds (carbon nanotubes).

Quoting the article:

Like an LCD, an FED is made up of layers. A layer of glass is coated with a cathode and a layer of diamond dust coated with lithium or carbon nanotubes. The negatively charged cathode, organized in a grid, then emits electrons through the diamonds or nanotubes, which focus that energy like a tiny lightening rod. But then, like a CRT, the electrons shoot through a vacuum at a layer of phosphorescent glass covered with pixels. The big difference is that the source of electrons, the carbon, is located only 1 millimeter to 2 millimeters rather than nearly 2 feet from the target glass, and instead of one electron source--the electron gun--there are thousands. The electrons are attracted to the pixilated glass because this layer contains a positively charged anode.

At last, I have a reason to hang on to my 53" rear screen projection TV. :)
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January 05, 2005 10:32 AM PST Permalink | Comments [1] | del.icio.us technorati slashdot digg reddit facebook stumbleupon


Comments:

Nanotubes are not exactly diamonds but todays nanotube prices may justify this expression ;-)

Posted by Tom Hielscher on May 29, 2006 at 06:19 AM PDT #

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