Television – Video display – Cathode-ray tube
Patent
1997-05-16
2000-06-06
Peng, John K.
Television
Video display
Cathode-ray tube
348805, 315370, H04N 1700
Patent
active
060725478
ABSTRACT:
A color display device having a color display tube with a display screen, comprising an electron gun for generating three co-planar electron beams, and a deflection system which, in operation, generates deflection fields for scanning the display screen, and an element influencing the landing angle of the outermost beams, for example an element generating, in operation, a 45.degree. magnetic 4-pole field, and comprising a correction device which supplies a signal to the element influencing the landing angle, which signal is derived from the video information (for example a signal which is proportional to the strength of the instantaneous beam current) in order to remedy landing errors caused by space-charge repellence between beams.
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Desir Jean W.
Kraus Robert J.
Peng John K.
U.S. Philips Corporation
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