Electron source structure covered with resistance film

Patent 7064475 Issued on June 20, 2006. Estimated Expiration Date:

December 22, 2023. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Abstract Claims Description Full Text

Patent References

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Inventors

Assignee

Canon Kabushiki Kaisha

Application

No. 10740415 filed on 12/22/2003

US Classes:

313/311, DISCHARGE DEVICES HAVING AN ELECTRODE OF PARTICULAR MATERIAL313/309, DISCHARGE DEVICES HAVING A MULTIPOINTED OR SERRATED EDGE ELECTRODE313/310, DISCHARGE DEVICES HAVING A THERMIONIC OR EMISSIVE CATHODE313/336, Point source cathodes445/24, Display or gas panel making313/495, Vacuum-type tube445/6, With start up, flashing or aging315/169.1, Diverse-type energizing or bias supplies to different electrodes345/75.2, Field emissive (e.g., FED, Spindt, microtip, etc.)445/3, With testing or adjusting315/169.3, Electroluminescent device427/77, Electron emissive or suppressive (excluding electrode for arc)106/472, Elemental carbon containing, e.g., carbon black, etc.524/439Elemental metal DNRM

Examiners

Primary: Glick, Edward J.
Assistant: Keaney, Elizabeth

Attorney, Agent or Firm

Fitzpatrick, Cella, Harper & Scinto

Foreign Patent References

0 343 645 EP 10/01/1994
1-298624 JP 12/01/1989
8-180801 JP 07/01/1996

International Class

H01J 1/05

Abstract

To provide an antistatic film that requires low power consumption and provides satisfactory electric contact, as a measure for preventing an insulating substrate surface having an electronic device formed thereon from being charged. The electronic device includes: an insulating substrate; a conductor; and a resistance film connected with the conductor, the conductor and the resistance film being formed on the insulating substrate, characterized in that the resistance film has a larger thickness in a connection region with the conductor than a thickness in portions other than the connection region.