Image display device comprising a cathode ray tube

Details Image display device comprising a cathode ray tube Image display device comprising a cathode ray tube

1996-11-20

1998-08-11

Issing, Gregory C.

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Cathode-ray deflections circuits

315367, 313409, 348809, G09G 104, H01J 2950, H04N 920

Patent

active

057931666

ABSTRACT:
An image display device (1) which includes a cathode ray tube is provided with a cathode system (2) for the emission of a plurality of electron beams (3) whereby a phosphor screen (4) is scanned in order to display an image. The electron beams are modulated on the basis of an electronic image signal by means of a cathode modulator (5). The cathode modulator is arranged to scan different image lines simultaneously by means of separate electron beams. For example, the cathode modulator comprises an extension system (7) and a delay system (8) for deriving extended and delayed extended image line sections from image line sections of the electronic image signal. The cathode modulator also comprises a combination unit (9) for simultaneously supplying an extended image line section and a delayed image line section with which separate electron beams are modulated.

REFERENCES:
patent: 3499982 (1970-03-01), O'Neal, Jr.
patent: 3511924 (1970-05-01), Goode
patent: 4633244 (1986-12-01), Holtey et al.
patent: 5389855 (1995-02-01), Chen
patent: 5668602 (1997-09-01), Sid-Ahmed

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