Radioactive cathode emitter for use in field emission display devices
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United States of America Patent
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-
Apr 10, 2001
Grant Date -
N/A
app pub date -
Jun 23, 1999
filing date -
May 6, 1997
priority date (Note) -
In Force
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Abstract
Cathodoluminescent field emission display devices features a radioactive cathode emitter which is used to produce primary electron emissions to drive the FED device. Radioactive emitters eliminate the need for complex emitter structures, such as conventional Spindt cathodes. In addition, the use of a radioactive emitter allows for an 'all-firm' FED, and thus represents an improvement over existing devices by reducing emitter to phosphor spacing, as well as eliminating the use of internal vacuums.
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