Image display device with cathode panel and gas absorbing getter

Details Image display device with cathode panel and gas absorbing getter Image display device with cathode panel and gas absorbing getter

1991-04-26

1993-06-29

Demeo, Palmer C.

Electric lamp and discharge devices

With luminescent solid or liquid material

Vacuum-type tube

313553, 313558, 313559, 313309, H01J 188, H01J 718

Patent

active

052237664

ABSTRACT:
A thin type image display device for displaying an image by emitting light from a fluorescer with irradiation of electron beams thereto. The device has a cathode panel between a front panel and a back panel in such a manner that a space is existent between the cathode panel and the back panel, wherein through holes for diffusion of getters are formed in the cathode panel to maintain the image quality at the center of a display screen, or the cathode panel is supported by getters to maintain a required pressure, hence attaining a higher image quality even on a large-sized display screen. A gate electrode may be composed of a getter material.

REFERENCES:
patent: 2547200 (1951-04-01), Dorgelo
patent: 2868610 (1959-01-01), Beggs
patent: 3264510 (1966-08-01), Griffiths
patent: 3885499 (1974-12-01), Yamada et al.
patent: 3980446 (1976-09-01), della Porta
patent: 4578614 (1986-03-01), Gray et al.
patent: 4608518 (1986-08-01), Fukuda et al.
patent: 4835438 (1989-05-01), Baptist et al.
patent: 4972116 (1990-11-01), Tatsuda et al.
patent: 5063323 (1991-11-01), Longo et al.
Patent Abstracts of Japan vol. 14 No. 308, Mar. 7, 1990.

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