Large screen video display comprising a matrix array of cathode-

Details Large screen video display comprising a matrix array of cathode- Large screen video display comprising a matrix array of cathode-

1984-07-11

1987-01-06

Masinick, Michael A.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358 56, 358 64, 358 66, 358230, 358242, 340720, 340752, 340766, H04N 924, H04N 916, H04N 568, H01Q 100

Patent

active

046351051

ABSTRACT:
In an embodiment, the device comprises ten rows of ten cathode-ray tubes, each tube being associated with a convergent lens. Each cathode-ray tube reproduces a picture portion and the lens enlarges this picture portion in such a ratio that the joints between the cathode-ray tubes no longer appear. The cathode-ray tubes incorporate a single electron gun, two pairs of electrostatic deflection plates and a screen incorporating red, green and blue phosphors abnd ultraviolet indexing phosphors. The display device is connected to an electronic device which supplies scan signals for each cathode-ray tube and which supplies color signals. The horizontal-scan frequency and vertical-scan frequency are ten times higher than for a conventional television display. The electronic device possesses memories which store the color information corresponding to each of the picture portions.

REFERENCES:
patent: 3525800 (1970-08-01), Wilcox
patent: 3909525 (1975-09-01), Fagan
patent: 4305092 (1981-12-01), Katzfey
patent: 4368485 (1983-01-01), Midland
Weingartner, I., et al., "Chromatic Correction of Two- and Three-Element Holographic Imaging Systems", OPTICA ACTA, 1982, vol. 29, No. 4, pp. 519-529.

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