Information display device

Details Information display device Information display device

1981-11-24

1983-11-29

Peshock, Robert

Card, picture, or sign exhibiting

Display with special effects

Selective or intermittent illumination

40219, 40615, G09F 1300

Patent

active

044174110

ABSTRACT:
This invention discloses an information display device including a front plate and information visualizing means provided behind the front plate and adapted to make information consisting of characters, patters and/or others appear on the front surface of the plate by the light emitted from the visualizing means and passing through the plate, the device being characterized in that the front plate is made from transparent material such as transparent synthetic resins, glass or the like and is provided with metal coating on the front surface or the back surface of the front plate. The thickness of the metal coating is such that the metal coating permits the light emitted from the visualizing means to pass through it to make the information emerge on the front surface of the front plate and substantially prevents light the intensity of which is less than the former light from passing through the coating.

REFERENCES:
patent: 1786033 (1930-12-01), Smith
patent: 2159328 (1939-05-01), Horinstein
patent: 2496488 (1950-02-01), Ohman
patent: 3018107 (1962-01-01), Erickson
patent: 3132476 (1938-10-01), Holm

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