US Patent No: 5,410,370

Number of patents in Portfolio can not be more than 2000

Single panel color projection video display improved scanning

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Abstract

A color projection video system utilizing only a single light valve. A white light source is separated into red, green and blue bands. Scanning optics in the form of three prisms coaxially mounted for rotation cause the RGB bands to be sequentially scanned across a light valve, such as a transmission LCD panel. Prior to each color passing over a given row of panels on the light valve, that row will be addressed, by the display electronics with the appropriate color content of that portion of the image which is being displayed. The image is projected by a projection lens onto a viewing surface, such as a screen. The sequence of light bands occurs so quickly as to give the viewer an appearance of simultaneous full color.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
NORTH AMERICAN PHILIPS CORPORATIONNEW YORK, NY987

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Janssen, Peter J Scarborough, NY 55 725

Cited Art

Patent Info (Count) # Cites Year
 
Jersey Nuclear-Avco Isotopes, Inc. (1)
4,319,807 Rotating optical frequency chirp device 20 1980
 
Messerschmitt-Bolkow-Blohm GmbH (1)
4,940,312 Scanning prism 5 1988

Patent Citation Ranking

Forward Cites

Patent Info (Count) # Cites Year
 
VENTURE LENDING & LEASING IV, INC. (14)
6,962,419 Micromirror elements, package for the micromirror elements, and projection system therefor 33 2001
7,300,162 Projection display 4 2004
7,196,740 Projection TV with improved micromirror array 4 2004
7,172,296 Projection display 8 2004
7,167,297 Micromirror array 2 2004
7,023,606 Micromirror array for projection TV 6 2004
7,018,052 Projection TV with improved micromirror array 5 2004
7,012,731 Packaged micromirror array for a projection display 4 2004
7,006,275 Packaged micromirror array for a projection display 5 2004
7,262,817 Rear projection TV with improved micromirror array 10 2004
7,671,428 Methods for depositing, releasing and packaging micro-electromechanical devices on wafer substrates 0 2005
7,655,492 Methods for depositing, releasing and packaging micro-electromechanical devices on wafer substrates 0 2005
7,573,111 Methods for depositing, releasing and packaging micro-electromechanical devices on wafer substrates 0 2005
7,286,278 Methods for depositing, releasing and packaging micro-electromechanical devices on wafer substrates 2 2005
 
TEXAS INSTRUMENTS INCORPORATED (12)
7,052,150 Rod integrator 9 2000
6,967,759 Pulse width modulation sequence generation 2 2002
6,987,597 Pulse width modulation sequence generation 5 2004
6,898,019 Pulse width modulation sequence generation 2 2004
7,066,605 Color recapture for display systems 5 2004
7,118,226 Sequential color recapture for image display systems 5 2005
7,362,493 Micromirror and post arrangements on substrates 1 2005
7,075,702 Micromirror and post arrangements on substrates 8 2005
7,184,213 Rod integrators for light recycling 1 2006
7,252,391 Method of producing an image 2 2006
7,835,054 Optical architecture having a rotating polygon for use in imaging systems 0 2007
7,817,323 Optical structure and an imaging system using the same 0 2007
 
KONINKLIJKE PHILIPS ELECTRONICS N.V. (10)
6,626,539 Color video projection display system with low-retardance compensator film for improved contrast 4 2001
6,511,183 Digital image projector with oriented fixed-polarization-axis polarizing beamsplitter 30 2001
6,604,827 Efficient arc lamp illuminator for projection system 0 2001
6,698,894 Scrolling color light engine with improved color uniformity of the illumination field and single panel projection display system incorporating same 4 2001
6,803,902 Variable rate row addressing method 1 2002
6,865,794 Alignment tool, assembly tool and method for a poly-plane workpiece 0 2002
6,886,941 Compact light engine with light guides for projection display system 1 2002
6,783,250 Efficient light collector for projection display system 0 2002
6,896,371 Digital image projector with oriented fixed-polarization-axis polarizing beamsplitter 9 2002
7,121,668 Device and method for generating an image for projection 1 2003
 
PHILIPS ELECTRONICS NORTH AMERICA CORPORATION (5)
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
5,892,623 Mutli-color-band light source 26 1997
5,845,981 Multi-color-band scrolling across single-panel light valve 54 1997
6,288,815 Light scanner with cylindrical lenses 24 1999
 
SEIKO EPSON CORPORATION (4)
7,312,913 Imaging light source with polarization and color recovery 3 2002
6,899,440 Polarized light source system with mirror and polarization converter 16 2002
6,646,806 Polarized light source system with dual optical paths 24 2002
7,144,133 Transflective color recovery 4 2004
 
HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. (2)
7,081,928 Optical system for full color, video projector using single light valve with plural sub-pixel reflectors 4 2001
7,358,930 Display system with scrolling color and wobble device 1 2003
 
KODAK I L, LTD. (2)
5,966,504 Apparatus and method for printing 5 1997
6,208,369 Apparatus and method for recording an image 13 1997
 
Kopin Corporation (2)
5,642,129 Color sequential display panels 170 1994
6,097,352 Color sequential display panels 157 1997
 
QUALCOMM INCORPORATED (2)
7,172,288 Display device including a spatial light modulator with plural image regions 0 2003
7,317,465 Image display system and method 1 2004
 
ADVANCED PERIPHERALS TECHNOLOGIES, INC., A JAPANESE CORPORATION (1)
6,457,833 Digital micro mirror device and single-panel color projector using it 15 2000
 
CANON KABUSHIKI KAISHA (1)
7,055,968 Projection type display device 3 2005
 
DELTA ELECTRONICS, INC. (1)
6,739,723 Polarization recapture system for liquid crystal-based data projectors 49 2001
 
EASTMAN KODAK COMPANY (1)
6,947,459 Organic vertical cavity laser and imaging system 27 2002
 
LG ELECTRONICS INC. (1)
6,520,644 Cylindrical color wheel and fabricating method thereof and projector using the same 8 2000
 
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. (1)
7,004,604 Sequential color display device including light shading means 6 2003
 
MITSUBISHI DENKI KABUSHIKI KAISHA (1)
7,040,766 Illumination optical system and projection-type display apparatus 3 2004
 
SHARP LABORATORIES OF AMERICA, INC. (1)
6,870,581 Single panel color video projection display using reflective banded color falling-raster illumination 194 2001
 
The University of North Carolina at Chapel Hill (1)
8,152,305 Methods, systems, and computer program products for full spectrum projection 0 2005
 
U.S. Philips Corporation (1)
5,684,504 Display device 12 1995