Liquid crystal cells – elements and systems – Particular structure – Having significant detail of cell structure only
Patent
1994-09-30
1997-06-10
Gross, Anita Pellman
Liquid crystal cells, elements and systems
Particular structure
Having significant detail of cell structure only
349117, G02F 11335
Patent
active
056381972
ABSTRACT:
An optical O-plate compensation device, in accordance with the invention, uses an inorganic thin film which is grown by physical vapor deposition at oblique incidence. The resulting thin film exhibits a biaxial form birefringence and performs, in a liquid crystal display (LCD), in a similar manner to uniaxial films with its extraordinary axis oriented obliquely at about 45.degree. with respect to the surface of the film. The invention makes possible a significant improvement in the gray scale properties and contrast ratios of liquid crystal displays (LCDs) over a wide range of viewing angles.
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Beedy James C.
Eblen, Jr. John P.
Gunning, III William J.
Kobrin Paul H.
Taber Donald B.
Gross Anita Pellman
Malinowski Walter J.
Montanye George A.
Murrah M. Lee
Rockwell International Corp.
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