Flat optical TV screen

Details Flat optical TV screen Flat optical TV screen

1984-08-03

1986-03-25

Chin, Tommy P.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358901, 358200, 340766, H04N 308

Patent

active

045787093

ABSTRACT:
A flat TV screen is provided by overlapping rows and columns of fiber optics. Each cross-over point will emit more light than radiates from the side of a single optical fiber when both of the crossing fibers are energized. Therefore, a dot matrix can be generated by controlling the entrance of light into the ends of the optical fibers in the rows and columns. The rows of optical fibers are sequentially energized by a light signal of constant brightness. The columns in turn are successively energized during the time period that each row is energized with signals derived from a TV video signal to thereby provide an optical reproduction of the TV signal from the dot matrix of light defined at the cross over points of the rows and columns. A filter covering having the property of emitting light at a given point on its surface only when such point is stimulated by light exceeding a given threshhold in brightness may be positioned over the dot matrix of light so that when the filter covering is used, the dot matrix of light is reproduced with higher contrast than in the absence of the covering.

REFERENCES:
patent: 3473872 (1969-10-01), Okamura
patent: 4280125 (1981-07-01), Kazan

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