Liquid crystal cells – elements and systems – Particular structure – Having significant detail of cell structure only
Patent
1999-05-18
2000-07-18
Dudek, James A.
Liquid crystal cells, elements and systems
Particular structure
Having significant detail of cell structure only
359834, G02F 11335
Patent
active
060914696
ABSTRACT:
A light reflector for use in a reflective-type liquid-crystal display has a prism sheet, which is made from a transparent base material, the front surface of which has formed on it a light-diffusing layer that diffuses incident light and the reverse side of which has a plurality of unit prisms that are arranged in a striped arrangement and made of an optically transparent resin, these prisms extending in a vertical direction, and having a cross-section that is the shape of a scalene triangle, and also has a light-reflecting sheet that is in opposition to the group of prisms on the rear surface of the prism sheet, the opposing surface of this light-reflecting sheet reflecting transmitted light and being disposed in parallel to the prism sheet, so that incident light and exiting light are not mutually parallel, thereby achieving both a wide viewing angle and a bright display.
REFERENCES:
patent: 4310584 (1982-01-01), Cooper et al.
patent: 5128787 (1992-07-01), Blonder
patent: 5903392 (1999-05-01), Kojima et al.
patent: 5995180 (1999-11-01), Moriwaki et al.
Dai Nippon Printing Co. Ltd.
Dudek James A.
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