Electron gun for cathode ray tube
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United States of America Patent
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Feb 17, 1998
Issued Date -
N/A
app pub date -
Jul 12, 1996
filing date -
Jul 1, 1993
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The electron gun with a field emission type cathode includes a substrate, a plurality of groups of cathodes disposed on the substrate, each group having a conically shaped electron-emitter, and gate electrodes each associated with each group of the plurality of groups of cathodes for causing the conically shaped electron-emitter to emit electrons by field emission. A control voltage can be applied independently to each group of the plurality of groups of cathodes, and also to the gate electrodes.
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