ELECTRON-EMITTING DEVICE AND IMAGE DISPLAY APPARATUS USING THE SAME, AS WELL AS MANUFACTURING METHOD THEREFOR
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United States of America Patent
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N/A
Issued Date -
Dec 22, 2011
app pub date -
May 24, 2011
filing date -
Jun 17, 2010
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
of an upper portion from a lower edge of the concave portion to a height-direction intermediate portion. And, an electric resistance of a lower cathode portion which is a portion of the lower portion of the cathode is larger than that of an upper cathode portion which is a portion of the upper portion of the cathode.
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