Distributed projection type liquid crystal display device

Details Distributed projection type liquid crystal display device Distributed projection type liquid crystal display device

1994-12-06

1996-08-20

Groody, James J.

Television

Video display

Projection device

348756, 348840, 253 82, H04N 57

Patent

active

055483488

ABSTRACT:
Light from a light source 12 is incident to a transmission type liquid crystal display panel 11 and the light transmitted therethrough is incident to two reflecting surfaces 14a and 14b of a polygon mirror 14. A shield plate 16 is interposed between a line dividing the display surface of the liquid crystal display panel 11 into equal right and left surfaces areas and the marginal edge of the polygon mirror 14 along which its reflecting surfaces 14a and 14b adjoin. Light transmitted through the right-hand surface area of the liquid crystal display panel and light transmitted through its left-hand surface area are reflected by the reflecting surfaces 14a and 14b, respectively, and are further reflected forward by reflecting mirrors 21a and 21b for projection onto screens 17a and 17b by projection lenses 22a and 22b.

REFERENCES:
patent: 2051848 (1932-08-01), Hamer
patent: 3792198 (1974-02-01), Hanson et al.
patent: 3818125 (1974-06-01), Butterfield
patent: 4288819 (1981-09-01), Williams
patent: 4743964 (1988-05-01), Allard et al.
patent: 4879603 (1989-11-01), Berman
patent: 5153621 (1992-10-01), Vogeley

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