Flat display device with beam guide

Details Flat display device with beam guide Flat display device with beam guide

1976-12-01

1978-07-25

Segal, Robert

Electric lamp and discharge devices

Cathode ray tube

Beam deflecting means

313432, H01J 2970, H01J 2908

Patent

active

041032055

ABSTRACT:
An evacuated envelope has a rectangular display section and a gun section at one side of the display section. The display section includes rectangular front and back walls in closely spaced, substantially parallel relation, and a plurality of spaced, substantially parallel support walls between the front and back walls forming a plurality of parallel channels. The gun section extends across one end of the channels and includes gun structure which will selectively direct one or more electron beams along each of the channels. In each of the channels is a beam guide which utilizes "slalom focusing" to confine the electrons in a direction normal to the front and back walls and guide the beam along the length of the channel wherein the electron beam is confined to an undulating path along the channel. The beam guide also includes means for laterally confining the electrons in the beam. The beam guide also permits selective deflection of the electron beam out of the guide toward a phosphor screen on the inner surface of the front wall.

REFERENCES:
patent: 2858464 (1958-10-01), Roberts
patent: 2953707 (1960-09-01), Cook et al.

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