Liquid crystal display device with pixel registration illumination
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United States of America Patent
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-
Dec 27, 1994
Grant Date -
N/A
app pub date -
Oct 2, 1992
filing date -
Oct 2, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A liquid crystal display device, (10 in FIG. 1) comprises a liquid crystal panel (12) and a backside illuminator (14). The liquid crystal includes pixels (36) separated by a matrix area (37). The backside illuminator comprises a waveguide (40) having a face (44) facing the backside (18) of the liquid crystal panel and including light-emitting sites (48) disposed in registration with the pixels and separated by non-emitting surface (46). During operation, light received from a suitable source (52, 54, 56) is transmitted within the waveguide to the sites and emitted to illuminate the corresponding pixels.
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