Information display device
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United States of America Patent
Stats
-
Nov 29, 1983
Grant Date -
N/A
app pub date -
Nov 24, 1981
filing date -
Nov 29, 1980
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
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Family
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Cited Art Landscape
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