Doped field-emitter

Details Doped field-emitter Doped field-emitter

2005-09-06

2005-09-06

Patel, Vip (Department: 2879)

Electric lamp and discharge devices

With luminescent solid or liquid material

Vacuum-type tube

C313S309000, C313S336000, C313S351000

Reexamination Certificate

active

06940218

ABSTRACT:
A field-emission electron source element includes a cathode substrate, an insulating layer that is formed on the cathode substrate and has an opening, a lead electrode formed on the insulating layer, and an emitter formed in the opening. A surface layer of an electron emitting region of the emitter is doped with at least one reducing element selected from the group consisting of hydrogen and carbon monoxide. Further, an image display apparatus including the above-mentioned field-emission electron source element is provided. This makes it possible to obtain not only a stable field-emission electron source element that does not cause a current drop even after a high current density operation for a long time but also a high-performance image display apparatus that can maintain a stable display performance over a long period of time.

REFERENCES:
patent: 6400074 (2002-06-01), Yamaura et al.
patent: 6495965 (2002-12-01), Yamaura et al.
patent: 6630772 (2003-10-01), Bower et al.
patent: 48-90467 (1973-11-01), None
patent: 7-192604 (1995-07-01), None
patent: 8-255555 (1996-10-01), None
patent: 11-273594 (1999-10-01), None
patent: 2000-30639 (2000-01-01), None
patent: 2000-36242 (2000-02-01), None

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