Backlighting assembly utilizing microprisms and especially suitable for use with a liquid crystal display
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United States of America Patent
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Feb 14, 1995
Grant Date -
N/A
app pub date -
Oct 8, 1992
filing date -
Oct 8, 1992
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An assembly for backlighting a liquid crystal display is disclosed herein along with the liquid crystal display itself and a specific light polarization arrangement. The assembly for backlighting the liquid crystal display includes a backlighting light pipe into which light is directed in a particular manner and a specifically configured arrangement of immediately adjacent microprisms which cooperate with the backlighting light pipe for reflecting light within the ladder upwards through one of its surfaces in a generally collimated manner. The liquid crystal display backlighting assembly is also disclosed including a specifically designed arrangement for collimating the light directed into the light pipe such that the light exiting the light pipe does so on a more collimated manner.
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