Envelope for vacuum electronic device

Details Envelope for vacuum electronic device Envelope for vacuum electronic device

1996-10-04

1998-08-04

O'Shea, Sandra L.

Electric lamp and discharge devices

With luminescent solid or liquid material

Vacuum-type tube

313496, H01J 6302

Patent

active

057898588

ABSTRACT:
A fluorescent display device capable of being sealed while being evacuated to a high vacuum without independently forming any evacuation hole at an electrode formation section of a substrate of an envelope. A cathode substrate is sealedly formed of an electrode formation section of a large plate-like shape provided thereon with a field emission cathode, an evacuation section of a small plate-like shape formed with a cutout, and a seal member. An anode substrate on which a display section is spacedly arranged oppositely to the cathode substrate. A getter chamber including an evacuation tube is connected to the evacuation hole. Thus, the present invention eliminate independent formation of any specific evacuation at the electrode formation section, to thereby prevent damage and contamination of the substrates.

REFERENCES:
patent: 4531122 (1985-07-01), Redfield
patent: 4874987 (1989-10-01), van der Eijk et al.
patent: 5063323 (1991-11-01), Longo et al.
patent: 5170100 (1992-12-01), Shichao et al.
patent: 5223766 (1993-06-01), Nakayama et al.
patent: 5444331 (1995-08-01), Matsuno et al.
patent: 5635795 (1997-06-01), Itoh et al.
patent: 5656889 (1997-08-01), Niiyama et al.

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