Color display tube having improved color selection strucure

Details Color display tube having improved color selection strucure Color display tube having improved color selection strucure

1982-04-19

1984-09-25

LaRoche, Eugene R.

Electric lamp and discharge devices

Cathode ray tube

Shadow mask, support or shield

313403, 313460, H01J 2981

Patent

active

044737726

ABSTRACT:
In a color display tube of the post focusing type, the color selection structure (7) includes first lens electrode means (11) and second lens electrode means (12) situated at a short distance from each other. The second lens electrode means has a number of elongate conductors (12) or groups of conductors (12) extending parallel to each other. The conductors (12) or groups of conductors (12) are interconnected via a resistance material (19) as a result of which the energy released in an electric flash-over between the lens electrode means (11) and a conductor (12) in the flash-over point per unit of time is so small that the color selection structure (7) is not seriously damaged.

REFERENCES:
patent: 4066923 (1978-01-01), van Esdonk
patent: 4107569 (1978-08-01), Ronde
patent: 4121131 (1978-10-01), van Esdonk et al.
patent: 4188562 (1980-02-01), Van Oostrum
patent: 4311944 (1982-01-01), Bloom et al.
patent: 4316126 (1982-02-01), Hockings et al.
patent: 4350922 (1982-09-01), Catanese et al.
patent: 4427918 (1984-01-01), Lipp

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