Projection type image display apparatus

Details Projection type image display apparatus Projection type image display apparatus

2006-01-17

2006-01-17

Hsia, Sherrie (Department: 2614)

Television

Video display

Projection device

C348S781000

Reexamination Certificate

active

06987546

ABSTRACT:
An image display technique which projects R, G, and B light rays on a display device to form an image with an increased utilization ratio of light and an increased screen brightness. R, G, and B light rays as a result of color separation are reflected by plural reflective surfaces on the inner side, etc. of a rotary polyhedral reflector, so that, as the reflector rotates around a central axis and its reflection plane sequentially changes from one reflective surface to a next one, the reflected light rays are projected on a display device surface in different positions and scroll in a prescribed direction.

REFERENCES:
patent: 5528318 (1996-06-01), Janssen
patent: 5845981 (1998-12-01), Bradley
patent: 6219110 (2001-04-01), Ishikawa et al.
patent: 6288815 (2001-09-01), Lambert
patent: 6493149 (2002-12-01), Ouchi
patent: 6765705 (2004-07-01), Ouchi
patent: 6898020 (2005-05-01), Ouchi
patent: 2003/0164901 (2003-09-01), Ouchi et al.

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