Field-emission electron source, method of manufacturing the same, and image display apparatus
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United States of America Patent
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May 8, 2007
Grant Date -
Sep 30, 2004
app pub date -
Mar 23, 2004
filing date -
Mar 24, 2003
priority date (Note) -
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Abstract
A stable field-emission electron source that does not suffer from a current drop even after a high-current density operation for a long time is provided. The field-emission electron source includes: a substrate; an insulating layer that is formed on the substrate and that has a plurality of openings; cathodes arranged at the respective openings in order to emit electron beams; a lead electrode formed on the insulating layer in order to control emission of electrons from the respective cathodes; and a surface-modifying layer formed on the surface of each of the cathodes emitting electrons, comprising a chemical bond between a cathode material composing the cathodes and a material different from the cathode material.
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