Electron-emitting device, with coating film made of heat-resistant material and electron source and image-forming apparatus using the device and manufacture method thereof

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 a higher melting point than that of a material of the elect...

Full description

Saved in:
Bibliographic Details
Main Authors YAMAMOTO; KEISUKE, IWASAKI; TATSUYA, HAMAMOTO; YASUHIRO, YAMANOBE; MASATO, TSUKAMOTO; TAKEO
Format Patent
LanguageEnglish
Published 14.11.2000
Edition7
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
ELECTRICITY
Online AccessGet full text

Cover

More Information
Summary: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 a 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 1.3x10-3 Pa, than that of a material of the electroconductive film. A manufacturing method for 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. The electron-emitting device has stable characteristics and improved efficiency of electron emission. An image-forming apparatus comprising the electron-emitting devices has high luminance and excellent stability in operation.
Bibliography:Application Number: US19950508906