Color display system
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United States of America Patent
Stats
-
Apr 17, 1990
Issued Date -
N/A
app pub date -
Sep 1, 1989
filing date -
Mar 28, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A preferred display system is formed by stacking three STN birefringent LCD panels that are tuned to different subtractive primary colors (i.e. yellow, cyan and magenta). Interposed between the panels, and sandwiched about the stack, are polarizers. At least some of the polarizers may be colored to enhance the birefringence color characteristics and to improve brightness. In some embodiments, the assembly is illuminated by a collimated light source and the resulting image is focused onto a projection screen for viewing. In other embodiments, optics are provided to permit direct wide angle viewing of the display without parallax effects.
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Cited Art Landscape
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