Electron-emitting device, and electron beam-generating apparatus and image-forming apparatus employing the device
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United States of America Patent
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Jul 15, 2003
Issued Date -
N/A
app pub date -
Apr 6, 1995
filing date -
Oct 8, 1991
priority date (Note) -
Expired
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Abstract
An electron-emitting device having an electron-emitting region between electrodes on a substrate where the electron-emitting region contains fine particles dispersed therein at an areal occupation ratio of the fine particles ranging from 20% to 75% of the electron-emitting region is disclosed. The other electron-emitting device where the electron-emitting region contains fine particles being arranged at gaps of from 5 .ANG. to 100 .ANG. and having average particle diameter of from 5 .ANG. to 1000 .ANG. is also disclosed. Electron beam-generating apparatus and image-forming apparatus comprise one of the electron-emitting regions and a modulation means for modulating the electron beams emitted from the electron-emitting devices in accordance with information signals.
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