US Patent No: 7,118,226

Number of patents in Portfolio can not be more than 2000

Sequential color recapture for image display systems

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ALSO PUBLISHED AS: 20050185148
ATTORNEY / AGENT: (SPONSORED)
 

Importance

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Abstract

A method for transmitting light in an image display system includes generating a beam of light from a light source. The beam of light is directed at a first segment of an electronically-switchable filter. A first portion of the beam of light is accepted by the first segment of the electronically-switchable filter, and a second portion of the beam of light is rejected by the first segment of the electronically-switchable filter. The first portion of the light beam is modulated to produce at least a portion of a displayed image. The second portion of the light beam is recycled to redirect the second portion of the light beam at a second segment of the electronically-switchable filter. The second portion of the light beam is accepted by the second segment of the electronically-switchable filter. The second portion of the light beam is modulated to produce at least a portion of the displayed image.

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First Claim

Related Publications

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Patent Owner(s)

Patent OwnerAddressTotal Patents
TEXAS INSTRUMENTS INCORPORATEDDALLAS, TX17098

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Davis, Michael T Richardson, TX 36 234
Penn, Steven M Plano, TX 64 625

Cited Art

Patent Info (Count) # Cites Year
 
TEXAS INSTRUMENTS INCORPORATED (11)
5,192,946 Digitized color video display system 307 1991
5,371,543 Monolithic color wheel 101 1993
5,448,314 Method and apparatus for sequential color imaging 392 1994
5,592,188 Method and system for accentuating intense white display areas in sequential DMD video systems 105 1995
5,612,753 Full-color projection display system using two light modulators 77 1995
6,028,692 Controllable optical periodic surface filter 20 1995
5,650,832 Multimode color wheel for display device 47 1995
5,760,976 Kinematic integrating optic mount 12 1997
6,771,325 Color recapture for display systems 40 2000
6,642,969 Color wheel for a falling raster scan 27 2000
6,591,022 Illumination system for scrolling color recycling 32 2001
 
PHILIPS ELECTRONICS NORTH AMERICA CORPORATION (6)
5,548,347 Single panel color projection video display having improved scanning 52 1994
5,608,467 Single panel color projection video display 32 1995
5,845,981 Multi-color-band scrolling across single-panel light valve 54 1997
6,266,105 Color projection system incorporation electro-optic light modulator and rotating light-reflective element 33 1998
6,280,034 Efficient two-panel projection system employing complementary illumination 80 1999
6,361,172 Color projection system incorporating electro-optic light modulator and rotating light-transmissive element 11 2000
 
North American Philips Corporation (5)
5,416,514 Single panel color projection video display having control circuitry for synchronizing the color illumination system with reading/writing of the light valve 58 1992
5,410,370 Single panel color projection video display improved scanning 63 1994
5,528,318 Single panel color projection video display having improved scanning 29 1995
5,532,763 Single panel color projection video display 53 1995
5,508,738 Single panel color porjection video display having control circuitry for synchronizing the color illumination system with reading/writing of the light 62 1995
 
U.S. Philips Corporation (2)
5,684,504 Display device 12 1995
5,781,251 Method and apparatus for optical scanning for single panel color projection video display 17 1995
 
CALIFORNIA INSTITUTE OF TECHNOLOGY (1)
6,097,456 Efficient color display using low-absorption in-pixel color filters 24 1998
 
DUKE UNIVERSITY (1)
5,868,480 Image projection apparatus for producing an image supplied by parallel transmitted colored light 56 1996
 
HEWLETT-PACKARD COMPANY (1)
6,005,722 Optical display system including a light valve 110 1998
 
LOCKHEED MARTIN CORPORATION (1)
4,305,099 Light collection system 22 1980
 
RCA Corporation (1)
4,415,931 Television display with doubled horizontal lines 49 1982
 
REAL D (1)
6,273,571 Display architectures using an electronically controlled optical retarder stack 29 1999
 
SEIKO EPSON CORPORATION (1)
6,155,687 Light guide for use in a color wheel display synchronization apparatus and method 42 1999
 
SMARTLIGHT LTD. (1)
6,246,450 Backprojection transparency viewer 11 1999
 
Other [Check patent profile for assignment information] (3)
4,739,396 Projection display system 73 1982
4,894,760 Additive color-mixing light fixture employing a single moveable multi-filter array 37 1988
6,893,133 Single panel color image projection system 3 2004

Patent Citation Ranking

Forward Cites

Patent Info (Count) # Cites Year
 
TEXAS INSTRUMENTS INCORPORATED (2)
7,959,305 Light recycling in a micromirror-based projection display system 2 2007
7,967,448 Optical system for a thin, low-chin, projection television 1 2007
 
HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. (1)
7,733,357 Display system 0 2006
 
THOMSON LICENSING (1)
8,358,384 Reduced rainbow artifacts in digital light projection systems 0 2005
 
Other [Check patent profile for assignment information] (1)
7,052,721 Recovery of compounds using a natural adsorbent 0 2001

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
7.5 Year Payment $3600.00 $1800.00 $900.00 Apr 10, 2014
11.5 Year Payment $7400.00 $3700.00 $1850.00 Apr 10, 2018
Fee Large entity fee small entity fee micro entity fee
Surcharge - 7.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00