Electric lamp and discharge devices – Cathode ray tube – Beam deflecting means
Patent
1989-03-23
1990-09-11
O'Shea, Sandra L.
Electric lamp and discharge devices
Cathode ray tube
Beam deflecting means
313413, 313423, H01J 2970
Patent
active
049565753
ABSTRACT:
There is disclosed a flat panel display which includes an evacuated display envelope having a flat front wall, a rear wall spaced apart from the front wall having sides of extremely short length compared to the front dimensions of the display. A phosphor screen is provided on the inner surface of the front wall and hence vertical phosphor columns disposed over said inner surface of said front wall. The display employs a single unmodulated electron gun on one lateral side of the display for providing an unmodulated electron beam which beam is bent both vertically and horizontally to impinge in a direction transverse to the front wall and to enter a color modulation means interposed adjacent to the beam as deflected to impinge upon selected portions of the phosphor elements to produce corresponding illumination intensities.
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O'Shea Sandra L.
Plevy Arthur L.
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