Liquid crystal cells – elements and systems – Liquid crystal optical element – Liquid crystal diffraction element
Patent
1997-02-13
1998-11-17
Sikes, William L.
Liquid crystal cells, elements and systems
Liquid crystal optical element
Liquid crystal diffraction element
G02F 113
Patent
active
058384162
ABSTRACT:
A device and method for enhancing the viewing angle of a display including the positioning of a liquid crystal beam deflector on display device, such as a liquid crystal display device. The liquid crystal beam deflector is capable of deflecting a display image incident thereon, thereby deflecting a primary viewing axis, resulting in an altered viewing axis and/or a broader viewing cone. The resultant effect allows the user to view the display image from the altered viewing angle or at any position within the broader viewing cone, to provide for a higher contrast output image by deflecting the brightest image away from the direction of specular reflection in ambient illuminated reflective displays.
REFERENCES:
patent: 4729641 (1988-03-01), Matsuoka et al.
patent: 4937539 (1990-06-01), Grinberg et al.
Chen Diana
Jachimowicz Karen E.
Wright Phil
Dudek James A.
Motorola Inc.
Parsons Eugene A.
Sikes William L.
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