Back-lit display
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United States of America Patent
Stats
-
Oct 17, 1989
Issued Date -
N/A
app pub date -
Jan 3, 1989
filing date -
Mar 24, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A back-lit display utilizes a light transmissive film having a smooth surface and a structured surface. The structured surface has a series of triangular prisms running parallel or concentric to one another. A reflector is placed adjacent to the smooth surface so that light entering the film at an angle that is close to parallel to the smooth surface will emerge from the film at a predetermined angle with respect to the incoming beam. A display, that could be a liquid crystal display, is positioned so that light reflected by the film passes through it.
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Cited Art Landscape
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