Display with active contrast enhancement

Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix

Reexamination Certificate

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Details

C345S204000

Reexamination Certificate

active

07071907

ABSTRACT:
A display (50) with enhanced image contrast contains an image-producing component (60) and a set of shutter strips (80). The image-producing component, typically a flat-panel device, has multiple imaging lines that provide light to produce an image. Each shutter strip is situated in front of one or more associated imaging lines. By appropriately switching the shutter strips between light-absorptive and light-transmissive states, the image contrast is enhanced. The shutter strips are typically implemented with a liquid-crystal display structure. The switching of the shutter strips is typically performed with a control component (52/76) which utilizes light to control the shutter switching and which is synchronized to signals (90or/and100) that control the imaging lines.

REFERENCES:
patent: 4231068 (1980-10-01), Hunt
patent: 4398805 (1983-08-01), Cole
patent: 4596446 (1986-06-01), Waters et al.
patent: 5175637 (1992-12-01), Jones et al.
patent: 5237314 (1993-08-01), Knapp
patent: 5477105 (1995-12-01), Curtin et al.
patent: 5483263 (1996-01-01), Bird et al.
patent: 5576596 (1996-11-01), Curtin et al.
patent: 5589731 (1996-12-01), Fahlen et al.
patent: 5686790 (1997-11-01), Curtin et al.
patent: 5861929 (1999-01-01), Spitzer
patent: 5898266 (1999-04-01), Spindt et al.
patent: 6031328 (2000-02-01), Nakamoto
patent: 6055028 (2000-04-01), Nishi et al.
patent: 6094252 (2000-07-01), Itoh et al.
patent: 6268843 (2001-07-01), Arakawa
patent: 0 488 455 (1991-11-01), None
patent: 3-71111 (1991-03-01), None
patent: 9-133930 (1997-05-01), None
patent: 9-281526 (1997-10-01), None
patent: 10-148829 (1998-06-01), None
patent: WO 99/36935 (1999-07-01), None
Bahadur,Liquid Crystals, Applications and Uses(World Scientific Pub. Co. Pte. Ltd.), vol. 1, 1992, pp. 195-230, 275-303, and 361-395.
Bahadur,Liquid Crystals, Applications and Uses(World Scientific Pub. Co. Pte. Ltd.), vol. 3, 1992, pp. 65-208.
Curtin et al, “Fundamentals of Emissive Displays,” Short Course S-3, Soc. for Info. Display, May 11, 1997, pp. 1-80.
Huang et al, “Dynamic Drive for Distable Reflective Cholesteric Displays: A Rapid Addressing Scheme,”SID Int'l Symp., Dig. Tech. Paps.,1995, pp. 347-350.
Huang et al, “High-Performance Dynamic Drive Scheme for Bistable Reflective Cholesteric Displays,”SID Int'l Symp., Dig. Tech. Paps.,1996, pp. 359-362.
Huang et al, “Unipolar Implementation for the Dynamic Drive Scheme of Bistable Reflective Cholesteric Displays,”SID Int'l Symp., Dig. Tech. Paps.,1997, pp. 899-902.
Koehler/Beran et al, “A Unique Active Contrast-Enhancement Filter Using Liquid-Crystal Pi-Cell Technology,”SID Int'Symp., Dig. Tech. Paps.orSID 86 Digest, 1986, pp. 436-438.
O'Mara,Liquid Crystal Flat Panel Displays(Van Nostrand Reinhold), 1993, pp. iii-xv and 1-223.
Podojil, “Plastic VGA Reflective Cholesteric LCDs with Dynamic Drive,”SID Int'l Symp., Dig. Tech. Paps.,1998, pp. 51-59.
Sprokel,The Physics and Chemistry of Liquid Crystal Devices(Plenum Press), Sheffer et al, “Guest-Host Displays”, 1979, pp 173-198.
Tani, “Storage-Type Liquid Crystal Matrix Display,”SID Int'l Symp., Dig. Tec. Paps.,1979, pp. 114 and 115.
Tannas,Flat-panel Displays and CRTs(Van Nostrand Reinhold), 1985, pp. 332-414.
Yang “Switching Mechanism of Bistable Reflective Cholesteric Displays,”SID Int'l Symp., Dig. Tech. Paps.,1995, pp. 351-354.

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