Multi-display apparatus

Details Multi-display apparatus Multi-display apparatus

1996-01-26

1999-07-20

Chow, Dennis-Doon

Computer graphics processing and selective visual display system

Plural display systems

Tiling or modular adjacent displays

434 44, 348 36, B09G 500

Patent

active

059261536

ABSTRACT:
A multi-display apparatus includes a plurality of rear projection-type display devices each in which projection light from image sources is projected through projection lenses onto a rear projection surface of a rear projection screen to form a picture image on a front viewing surface of the rear projection screen, the plurality of rear projection-type display devices being combined together in contiguous relation to one another to form a large screen. An overall front viewing surface of the large screen is formed into a concave surface curved both in a horizontal visibility angle direction and a vertical visibility angle direction. A light-absorbing portion is formed on the front viewing surface of the rear projection screen, and the light-absorbing portion absorbs projection light which passes through one rear projection screen, and is incident as external light on another rear projection screen, thereby preventing a picture image from being degraded.

REFERENCES:
patent: 4473355 (1984-09-01), Pongratz
patent: 4656506 (1987-04-01), Ritchey
patent: 5130794 (1992-07-01), Ritchey
patent: 5582518 (1996-12-01), Henique et al.

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