High efficiency projection displays having thin film polarizing beam-splitters
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United States of America Patent
Stats
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Nov 9, 1999
Grant Date -
N/A
app pub date -
Aug 27, 1998
filing date -
Aug 12, 1996
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A projection display system includes a thin film polarizing beam splitter/combiner has first and second light transmissive substrates in the form of prisms and a plurality of thin film layers disposed between the prisms. The thin film layers and have predetermined thicknesses and refractive indices which allow unpolarized incident light to be separated into s-polarized and p-polarized light beams. Both frustrated total internal reflection and thin film interference are simultaneously employed to allow s-polarized light to be transmitted and p-polarized light to be reflected over a wide range of wavelengths and angles of incidence. The device further includes two spatial light modulators for encoding an image to be projected. By providing a different signal to each spatial light modulator, a three-dimensional display results.

First Claim
Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | Total Patents |
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NATIONAL RESEARCH COUNCIL OF CANADA | OTTAWA ONTARIO | 476 |
International Classification(s)

- [Classification Symbol]
- [Patents Count]
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Dobrowolski, Jerzy A | Ottawa, CA | 14 | 795 |
Li, Li | Orleans, CA | 919 | 8353 |
Sullivan, Brian Thomas | Gloucester, CA | 11 | 77 |
Cited Art Landscape
Patent Info | (Count) | # Cites | Year |
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* 5517340 High performance projection display with two light valves | 99 | 1995 | |
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* 5181054 Device for the projection of images using two orthogonal components of light polarization | 30 | 1991 | |
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* 5453859 Polarization beam splitter and projection display apparatus | 95 | 1994 |
Patent Citation Ranking
Forward Cite Landscape
Patent Info | (Count) | # Cites | Year |
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7403320 2-channel display system comprising micro electro mechanical systems | 1 | 2004 | |
* 2007/0211,217 Highly Efficient Single Panel and Two Panel Projection Engines | 2 | 2007 | |
* 8085462 Superposition method using a pair of stereo-isomeric micro electro mechanical systems (MEMSs) | 1 | 2010 | |
* 2010/0296,170 Superposition method using a pair of stereo-isomeric micro electro mechanical systems (MEMSs) | 1 | 2010 | |
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* 7036942 Optical filter, optical device, and projector | 2 | 2003 | |
* 2004/0057,116 Optical filter, optical device, and projector | 1 | 2003 | |
* 9348206 Light source apparatus and projector having a light combiner with a polarization separation film | 1 | 2013 | |
* 2014/0028,981 LIGHT SOURCE APPARATUS AND PROJECTOR | 1 | 2013 | |
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* 8712198 Optical splitter device | 1 | 2008 | |
* 2011/0123,152 Optical Splitter Device | 0 | 2008 | |
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* 2009/0152,748 Polarizer Films and Methods of Making the Same | 14 | 2009 | |
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* 6203160 High efficiency liquid crystal display projection system | 10 | 1999 | |
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8388138 Projection display systems | 34 | 2008 | |
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* 8422112 Display system | 3 | 2008 | |
* 2010/0315,577 Display System | 0 | 2008 | |
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6886943 High-resolution projection display system | 12 | 2003 | |
* 2005/0088,629 HIGH-RESOLUTION PROJECTION DISPLAY SYSTEM | 11 | 2003 | |
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6639733 High efficiency non-imaging optics | 130 | 2001 | |
6646813 Optical transformer for small light sources | 30 | 2001 | |
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* 9229268 Liquid crystal display device | 0 | 2012 | |
* 2014/0022,492 Liquid Crystal Display Device | 1 | 2012 | |
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* 6991334 Polarization beam splitting optical system | 2 | 2004 | |
* 2004/0184,006 Polarization beam splitting optical system | 1 | 2004 | |
* 7008059 Color combining optical system and image projection apparatus | 3 | 2004 | |
* 2004/0156,022 Color combining optical system and image projection apparatus | 0 | 2004 | |
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* 6183090 Projection type image display apparatus | 39 | 1998 | |
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* 6288844 Light splitter and optical transmitter configuration with a light splitter | 16 | 1999 | |
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7237899 Highly efficient single panel and two panel projection engines | 10 | 2003 | |
7568804 Highly efficient single panel and two panel projection engines | 2 | 2007 | |
* 9841598 Lens with embedded multilayer optical film for near-eye display systems | 0 | 2013 | |
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* 7926949 Dual-mode three-dimensional projection display | 8 | 2007 | |
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6870523 Device, system and method for electronic true color display | 155 | 2000 | |
7113152 Device, system and method for electronic true color display | 29 | 2001 | |
7352488 Spectrally matched print proofer | 19 | 2001 | |
* 2002/0149,546 Spectrally matched print proofer | 17 | 2001 | |
7268757 Device, system and method for color display | 65 | 2002 | |
6962414 Sequential projection color display using multiple imaging panels | 21 | 2002 | |
7999823 Device and method for projection device based soft proofing | 1 | 2003 | |
7471822 Method and apparatus for high brightness wide color gamut display | 12 | 2003 | |
* 2004/0174,389 Device, system and method for color display | 48 | 2003 | |
* 2004/0184,005 Sequential projection color display using multiple imaging panels | 4 | 2004 | |
8228275 Optimal subpixel arrangement for displays with more than three primary colors | 2 | 2004 | |
7714824 Multi-primary display with spectrally adapted back-illumination | 8 | 2004 | |
* 2007/0001,994 Multi-primary display with spectrally adapted back-illumination | 51 | 2004 | |
7417799 Multi-primary color display | 10 | 2004 | |
* 2006/0285,217 Multi-primary color display | 4 | 2004 | |
* 2005/0122,294 Color display devices and methods with enhanced attributes | 115 | 2005 | |
* 2005/0190,141 Device and method for projection device based soft proofing | 23 | 2005 | |
7077524 Sequential projection color display using multiple imaging panels | 11 | 2005 | |
* 2005/0275,806 Sequential projection color display using multiple imaging panels | 1 | 2005 | |
8587621 Sub-pixel rendering of a multiprimary image | 0 | 2006 | |
7990403 Device, system and method for color display | 5 | 2007 | |
7995019 Device, system and method for color display | 10 | 2007 | |
8310498 Spectrally matched print proofer | 2 | 2008 | |
* 2008/0218,784 SPECTRALLY MATCHED PRINT PROOFER | 7 | 2008 | |
8885120 Liquid crystal display device using a color-sequential method wherein the number of different colored LEDs is less than the number of primary colors used in the display | 0 | 2008 | |
8289266 Method, device and system for multi-color sequential LCD panel | 3 | 2008 | |
7916939 High brightness wide gamut display | 0 | 2009 | |
9430974 Multi-primary display with spectrally adapted back-illumination | 0 | 2010 | |
* 2010/0214,311 MULTI-PRIMARY DISPLAY WITH SPECTRALLY ADAPTED BACK-ILLUMINATION | 4 | 2010 | |
8248440 Device, system and method for color display | 8 | 2011 | |
* 9091884 Display apparatus | 1 | 2011 | |
* 2012/0320,173 DISPLAY APPARATUS | 8 | 2011 | |
8558857 Device, system and method for color display | 2 | 2012 | |
9196203 Device and system for a multi-color sequential LCD panel wherein the number of colors in a sequence of display colors is greater than the number of LED colors | 0 | 2012 | |
9851599 Color display device comprising at least six different primary colors | 0 | 2014 | |
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8749886 Wide-angle wide band polarizing beam splitter | 7 | 2012 | |
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8134109 Optical projection engine device having a polarizing beam splitter and a control providing modulation instructions to modulation imagers | 4 | 2009 | |
* 2010/0110,383 OPTICAL PROJECTION ENGINE DEVICE | 3 | 2009 | |
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* 7355560 Dielectric lens, dielectric lens device, design method of dielectric lens, manufacturing method and transceiving equipment of dielectric lens | 108 | 2006 | |
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8483756 Optical systems and elements with projection stabilization and interactivity | 0 | 2009 | |
* 2011/0086,703 OPTICAL SYSTEMS AND ELEMENTS WITH PROJECTION STABILIZATION AND INTERACTIVITY | 5 | 2009 | |
9113292 Optical systems and elements with projection stabilization and interactivity | 0 | 2013 | |
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* 6217174 Image projection | 20 | 1999 | |
6379011 Methods of projecting images | 6 | 2001 | |
6547399 Image engine having multiple image sources with different response times for color operation | 6 | 2002 | |
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* 8220931 Etendue reduced stereo projection using segmented disk | 2 | 2009 | |
* 2011/0007,279 ETENDUE REDUCED STEREO PROJECTION USING SEGMENTED DISK | 5 | 2009 | |
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* 9279996 3D projection optical system and dual-chip light splitting and light combining module thereof | 0 | 2011 | |
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7690794 Image-combining device and projection display apparatus having image-combining devices incorporated therein | 5 | 2007 | |
* 2008/0180,636 IMAGE-COMBINING DEVICE AND PROJECTION DISPLAY APPARATUS HAVING IMAGE-COMBINING DEVICES INCORPORATED THEREIN | 4 | 2007 | |
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* 2008/0055,719 Inorganic, Dielectric Grid Polarizer | 15 | 2006 | |
7800823 Polarization device to polarize and further control light | 17 | 2006 | |
7630133 Inorganic, dielectric, grid polarizer and non-zero order diffraction grating | 22 | 2007 | |
8755113 Durable, inorganic, absorptive, ultra-violet, grid polarizer | 6 | 2007 | |
7961393 Selectively absorptive wire-grid polarizer | 23 | 2007 | |
7813039 Multilayer wire-grid polarizer with off-set wire-grid and dielectric grid | 18 | 2009 | |
8248696 Nano fractal diffuser | 0 | 2009 | |
8027087 Multilayer wire-grid polarizer with off-set wire-grid and dielectric grid | 19 | 2010 | |
8611007 Fine pitch wire grid polarizer | 9 | 2011 | |
8922890 Polarizer edge rib modification | 0 | 2012 | |
8873144 Wire grid polarizer with multiple functionality sections | 2 | 2012 | |
8913320 Wire grid polarizer with bordered sections | 1 | 2012 | |
8913321 Fine pitch grid polarizer | 4 | 2012 | |
9632223 Wire grid polarizer with side region | 1 | 2014 | |
9354374 Polarizer with wire pair over rib | 3 | 2014 | |
9348076 Polarizer with variable inter-wire distance | 3 | 2014 | |
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* 6487014 High isolation optical switch, isolator or circulator having thin film polarizing beam-splitters | 8 | 1999 | |
* 6317264 Thin film polarizing device having metal-dielectric films | 9 | 1999 | |
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* 6672722 Projection engine | 34 | 2001 | |
* 2002/0191,235 Projection engine | 25 | 2001 | |
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* 2008/0123,168 Mirror device modulating perpendicular incident light | 1 | 2007 | |
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* 2007/0273,835 Digital projector with timer | 8 | 2006 |
Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
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 |
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