High speed, high ambient viewability liquid crystal display assembly
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United States of America Patent
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Jul 2, 1996
Grant Date -
N/A
app pub date -
Feb 23, 1994
filing date -
Feb 23, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A liquid crystal display assembly includes an untwisted nematic liquid crystal cell structure. The light transmittance of each pixel element of the assembly is a function of the pixel drive voltage. A phase compensating plate reduces the voltage necessary to permit switching, permitting compatibility with conventional thin film transistor (TFT) arrays but capable of greatly shortened response times. The configuration includes a combination linear polarizer and quarter wave plate which functions as a circular polarizer for blocking reflections from internal specularly reflecting surfaces within the liquid crystal display, thereby enhancing high ambient viewability.
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