High brightness/contrast color display system
Number of patents in Portfolio can not be more than 2000
United States of America
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Apr 17, 1990
Issued Date -
N/A
app pub date -
Mar 28, 1989
filing date -
Mar 28, 1989
priority date (Note) -
Withdrawn
status (Latency Note)
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Abstract
A display system is formed by stacking three birefringent LCD panels that are tuned to different substractive 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 are colored to improve the resulting 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 on the front and rear surfaces of the assembly permit direct viewing without parallax effects.
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