A field emission display (FED) is a type of
flat panel display using field emitting cathodes to bombard
phosphor coatings as the
light emissive medium.Field emission displays are very similar to
cathode ray tubes, 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), with many positioned behind each phosphor dot, to emit electrons through a process known as
field emission. Because of emitter redundancy, FEDs do not display
dead pixels like LCDs even if 20% of the emitters fail.
Sony is researching FED because it is the flat-panel technology that comes closest to matching the picture of a
CRT.
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