Colour display tube including a convergence correction device

Details Colour display tube including a convergence correction device Colour display tube including a convergence correction device

1993-11-30

1996-04-30

Issing, Gregory C.

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Cathode-ray deflections circuits

31536828, 313436, 335213, 336200, G09G 128, H01J 2951, H01J 2974, H01H 100

Patent

active

055128025

ABSTRACT:
Convergence correction device for a color display tube comprising a rolled-up flexible support provided with two convergence correction coil systems at its inner surface as well as its outer surface. The coils of each system are of the spiral-shaped type and are interconnected via metallized apertures by means of an electrically conducting strip at the opposite circumferential surface. Dependent on the specific configuration, the flexible support is wound once or twice around the neck of the display tube.

REFERENCES:
patent: 3098942 (1963-07-01), Reiches
patent: 3368095 (1968-02-01), Jannery
patent: 3702450 (1972-11-01), Avery et al.
patent: 4027219 (1977-05-01), Van Alphen et al.
patent: 4642527 (1987-02-01), Takahashi et al.
patent: 5095357 (1992-03-01), Andoh et al.

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