Liquid crystal display with first and second tilted retarders
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United States of America Patent
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May 2, 2000
Issued Date -
N/A
app pub date -
Jan 15, 1998
filing date -
Feb 3, 1995
priority date (Note) -
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Abstract
A liquid crystal display includes a tilted retarder. The tilted retarder has an optical axis which is aligned at an angle of from about 5.degree. to 15.degree. with respect to normal. Thus, because the optical axis of the liquid crystal layer is aligned at an angle to one side of normal and the optical axis of the tilted retarder(s) is at an angle to the other side of normal, the retardation effects substantially cancel one another out. Tilted retarder(s) may be used in combination with negatively birefringent retarders according to certain embodiments of this invention in twisted nematic normally white displays.
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