Amorphic diamond film flat field emission cathode
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United States of America Patent
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-
Oct 3, 2000
Issued Date -
N/A
app pub date -
Jun 4, 1997
filing date -
Mar 16, 1992
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A field emission cathode for use in flat panel displays is disclosed comprising a layer of conductive material and a layer of amorphic diamond film, functioning as a low effective work-function material, deposited over the conductive material to form emission sites. The emission sites each contain at least two sub-regions having differing electron affinities. Use of the cathode to form a computer screen is also disclosed along with the use of the cathode to form a fluorescent light source.
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