Liquid crystal cells – elements and systems – Particular structure – Having significant detail of cell structure only
Patent
1998-01-15
2000-05-02
Parker, Kenneth
Liquid crystal cells, elements and systems
Particular structure
Having significant detail of cell structure only
349119, G02F 11335
Patent
active
060579013
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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OIS Optical Imaging Sytems, Inc.
Parker Kenneth
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