Dual-stage high-contrast electronic image display

Details Dual-stage high-contrast electronic image display Dual-stage high-contrast electronic image display

2006-02-21

2006-02-21

Lamarre, Guy (Department: 2133)

Computer graphics processing and selective visual display system

Image superposition by optical means

C345S087000

Reexamination Certificate

active

07002533

ABSTRACT:
Electronic displays are provided which can reproduce image data with high contrast ratios and a gray scale range comparable to conventional X-ray film viewed on a light box. One such display includes a rear low-resolution LCD or DLP display which projects an image onto a high-resolution LCD display. In such embodiments, the mechanical and optical registration between the two displays is not critical. Therefore, modulation transfer function and distortion of the projection optics are not critical. Accordingly, the brightness of the inventive display can be maximized with high power lamps and high aperture projection optics. Because the display has a high dynamic range, the need for dynamic range compression algorithms is reduced.

REFERENCES:
patent: 4364039 (1982-12-01), Penz
patent: 4476465 (1984-10-01), Anderson
patent: 4956704 (1990-09-01), Yamada
patent: 5200844 (1993-04-01), Suvada
patent: 5491525 (1996-02-01), Yamasaki et al.
patent: 5726670 (1998-03-01), Tabata et al.
patent: 5727860 (1998-03-01), Broer et al.
patent: 5978142 (1999-11-01), Blackham et al.
patent: 6042237 (2000-03-01), De Vaan et al.
patent: 6104536 (2000-08-01), Eckhardt
patent: 6341869 (2002-01-01), Inami et al.
patent: 6473209 (2002-10-01), Popovich

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