Color cathode ray tube

Details Color cathode ray tube Color cathode ray tube

2007-11-06

2007-11-06

Santiago, Mariceli (Department: 2879)

Electric lamp and discharge devices

Cathode ray tube

Envelope

C313S461000, C220S00210A

Reexamination Certificate

active

10855413

ABSTRACT:
The present invention relates to a color cathode ray tube and more specifically to a color cathode ray tube in which mechanical stress due to internal pressure made by evacuation is decreased. According to an aspect of the present invention, a cathode ray tube includes a panel on inner surface of which a phosphor screen is formed, a funnel joined to the panel, and an electron gun generating electron beams wherein the panel satisfies a condition: CFT/SET≦0.92 wherein CFT is thickness of central portion of the panel and SET is thickness of skirt portion of the panel.

REFERENCES:
patent: 4593225 (1986-06-01), Dietch et al.
patent: 5449969 (1995-09-01), Washburn
patent: 6534908 (2003-03-01), Nose et al.
patent: 6677702 (2004-01-01), Kim et al.
patent: 2004/0027046 (2004-02-01), Choo
patent: 2005/0052112 (2005-03-01), Kim
patent: 62160641 (1987-07-01), None

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