Abstract: A picture display device having a display tube and a deflection unit comprising a field deflection coil and a line deflection coil is disclosed. To comply with a predetermined interference radiation standard, the picture display device is provided with one interference suppression coil or with a system of interference suppression coils, which interference supression coil or system of interference suppression coils is oriented and can be energized in such a manner that, measured at a predetermined distance from the picture display device, the strength of the local magnetic dipole field is below a desired standard.
Type:
Grant
Filed:
January 13, 1988
Date of Patent:
August 7, 1990
Assignee:
U.S. Philips Corporation
Inventors:
Gerrit Bosch, Tjebbe R. Pasma, Albertus A. S. Sluyterman