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Field emission displays are very similar to Cathode Ray Tube s, however they are only a few millimeters thick. Instead of a single Electron Gun , a field emission display (FED) uses a large array of fine metal tips or Carbon Nanotubes (which are the most efficient electron emitters known), one positioned behind each phosphor dot, to emit electrons through a process known as Field Emission . A similar technology to be commercialized in 2007 is the SED (surface-conduction electron-emitter) display. Like LCD s, FEDs are energy efficient and could provide a flat panel technology that features less power consumption than existing LCD and Plasma Display technologies. They can also be cheaper to make, as they have fewer total components. As of yet, however, there are no consumer production models available in the United States, although small demo panels have been produced. In 2001, Candescent had spent $600 million on producing FEDs with non-carbon material, but it was abandoned, with assets sold to Canon in August 2004, two months after filing for voluntary reorganization under Chapter 11. Advance Nanotech, in collaboration with the University of Bristol, has developed a similar panel that relies on specially doped diamond dust. Carbon Nanotechnologies claimed production would start on late 2006. EXTERNAL LINKS
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