CRT display having compensation for image rotation and convergen

Details CRT display having compensation for image rotation and convergen CRT display having compensation for image rotation and convergen

1994-12-13

1998-01-06

Issing, Gregory C.

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Cathode-ray deflections circuits

315 8, 315 85, 315370, 315399, G09G 128, G09G 104, H01J 2906, H01J 152

Patent

active

057058997

ABSTRACT:
A color display device comprising a cathode ray tube and a deflection unit also includes a compensation coil or a compensation-coil system, for example, on the outside of the yoke of the deflection unit, so as to compensate for frame errors and convergence errors caused by the earth's magnetic field.

REFERENCES:
patent: 4899082 (1990-02-01), Sands et al.
patent: 5157305 (1992-10-01), Satoh et al.
patent: 5367221 (1994-11-01), Santy et al.

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