Normally white twisted nematic liquid crystal display including retardation films for improving viewing characteristics
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United States of America Patent
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Feb 22, 2000
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N/A
app pub date -
Jan 13, 1999
filing date -
Dec 15, 1993
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Abstract
A liquid crystal display in which a negatively birefringent layer is used as both an orientation film and as a retarder in the display. An improved method of making such a display is also disclosed. In preferred embodiments, each of the orientation layers has a retardation value of from about -80 to -200 nm.
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