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Electronic emission device, electron source and image forming apparatus using the same device and its producing method

A technology of electron emission and electron source, applied in the field of electron source, can solve the problems of unsatisfactory electron emission characteristics and efficiency

Inactive Publication Date: 2005-10-12
CANON KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] However, the above-mentioned electron-emitting device proposed by M. Hartwell is not satisfactory in terms of stable electron-emitting characteristics and efficiency

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  • Electronic emission device, electron source and image forming apparatus using the same device and its producing method
  • Electronic emission device, electron source and image forming apparatus using the same device and its producing method
  • Electronic emission device, electron source and image forming apparatus using the same device and its producing method

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Abstract

In an electron-emitting device including, between electrodes, an electroconductive film having an electron emitting region, the electroconductive film has a film formed in the electron emitting region and made primarily of a material having the higher melting point than that of a material of the electroconductive film. Alternatively, the electroconductive film has a film formed in the electron emitting region and made primarily of a material having a higher temperature, at which the material develops a vapor pressure of 1.3 x 10<-><3> Pa, than that of a material of the electroconductive film. A manufacture method of an electron-emitting device includes a step of forming a film made primarily of a metal in the electron emitting region of the electroconductive film. An image-forming apparatus comprising the electron-emitting devices has high luminance and excellent stability in operation.

Description

technical field [0001] The present invention relates to an electron-emitting device, and more particularly to an electron-emitting device that maintains stability over a long period of time, an electron source using the electron-emitting device, an image forming apparatus such as a display device using the electron source, and an exposure device. device, and a method of manufacturing an electron-emitting device, an electron source, and an image forming device. Background technique [0002] There have been two main types of electron-emitting devices in the past, namely, a hot cathode type electron-emitting device and a cold cathode type electron-emitting device. The cold cathode type electron emission devices include field emission type (hereinafter abbreviated as FE), metal / insulator / metal layer type (hereinafter abbreviated as MIM) and surface conduction type. [0003] Examples of FE electron-emitting devices are in W.P. Dyke and W.W. Dolan, "Field emission" ("Field emissi...

Claims

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Application Information

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IPC IPC(8): H01J9/02H01J1/316H01J29/04H01J29/46H01J31/12
CPCH01J2329/00H01J1/316H01J9/027H01J31/12
Inventor 岩崎达哉山野边正人塚本健夫山本敬介浜元康弘
Owner CANON KK
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