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US 6,617,773 B1Granted
Electron-emitting device, electron source, and image-forming apparatus
AssigneeCanon Kabushiki Kaisha
InventorsKeisuke Yamamoto, Miki Tamura, Yutaka Arai
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Abstract
Provided is an electron-emitting device which can be applied to an image-forming apparatus for displaying images with high luminance and high quality stably over a long period. The electron-emitting device has first and second carbon films laid on a substrate and first and second electrodes electrically connected to the respective carbon films, a higher voltage is applied to the second electrode than to the first electrode, and the carbon film connected to the second electrode comprises nitrogen.
Claims11
An electron-emitting device comprising:
- (a) first and second carbon films disposed on a substrate;
- and
- (b) first and second electrodes electrically connected to the respective carbon films,
- wherein a higher voltage is applied to the second electrode than to the first electrode, thereby causing an electron emission, and
- wherein said carbon film connected to said second electrode comprises nitrogen.
2 more elements
Dependencies are inferred from the claim text.