Device and method for enhancing the viewing angle of a display

Liquid crystal cells – elements and systems – Liquid crystal optical element – Liquid crystal diffraction element

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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.

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