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US 5,327,050 AGranted
Electron emitting device and process for producing the same
AssigneeCanon Kabushiki Kaisha
InventorsTakeo Tsukamoto, Akira Shimizu, Akira Suzuki, Masao Sugata, Isamu Shimoda, Masahiko Okunuki
Life of this patent
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Abstract
An electron emitting device causes electron emission by a current supply in a coarse resistor film. The coarse thin resistor film is composed at least of a coarse thin silicon film.
Claims2
An electron emitting device which comprises:
- a planar insulating substrate;
- at least a pair of electrodes provided on said substrate;
- an electron emitting member comprising ultra-fine particles having diameters selected in the range of 0.1-10 .mu.m and being disposed between said pair of electrodes and coming into contact with said substrate,
- the electron emission occurring directly in response to a current which flows through said electron emission member by applying a voltage between said pair of electrodes,
- wherein the ultra-fine particles forming said electron emission member have an insulating layer on the surface of the particles.
2 more elements
Dependencies are inferred from the claim text.