US Patent No: 5,982,541

Number of patents in Portfolio can not be more than 2000

High efficiency projection displays having thin film polarizing beam-splitters

1 Status Updates

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

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.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddressTotal Patents
NATIONAL RESEARCH COUNCIL OF CANADAOTTAWA ONTARIO485

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Dobrowolski, Jerzy A Ottawa, CA 14 773
Li, Li Orleans, CA 818 6472
Sullivan, Brian Thomas Gloucester, CA 6 70

Cited Art Landscape

Patent Info (Count) # Cites Year
 
GLOBALFOUNDRIES INC. (1)
* 5,517,340 High performance projection display with two light valves 96 1995
 
THOMSON-CSF (1)
* 5,181,054 Device for the projection of images using two orthogonal components of light polarization 30 1991
 
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. (1)
* 5,453,859 Polarization beam splitter and projection display apparatus 91 1994
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (4)
7,403,320 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
* 8,085,462 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
 
SEIKO EPSON CORPORATION (4)
* 7,036,942 Optical filter, optical device, and projector 2 2003
* 2004/0057,116 Optical filter, optical device, and projector 1 2003
* 9,348,206 Light source apparatus and projector having a light combiner with a polarization separation film 0 2013
* 2014/0028,981 LIGHT SOURCE APPARATUS AND PROJECTOR 1 2013
 
HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP (2)
* 8,712,198 Optical splitter device 0 2008
* 2011/0123,152 Optical Splitter Device 0 2008
 
NANOOPTO CORPORATION (1)
* 2009/0152,748 Polarizer Films and Methods of Making the Same 7 2009
 
TRANSPACIFIC IP LTD. (1)
* 6,203,160 High efficiency liquid crystal display projection system 10 1999
 
Boothroyd, Simon (1)
8,388,138 Projection display systems 20 2008
 
INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE (2)
* 8,422,112 Display system 1 2008
* 2010/0315,577 Display System 0 2008
 
JDS UNIPHASE CORPORATION (2)
6,886,943 High-resolution projection display system 9 2003
* 2005/0088,629 HIGH-RESOLUTION PROJECTION DISPLAY SYSTEM 10 2003
 
LIGHT PRESCRIPTIONS INNOVATORS, LLC (2)
6,639,733 High efficiency non-imaging optics 117 2001
6,646,813 Optical transformer for small light sources 27 2001
 
LG DISPLAY CO., LTD. (2)
* 9,229,268 Liquid crystal display device 0 2012
* 2014/0022,492 Liquid Crystal Display Device 0 2012
 
GOOGLE INC. (1)
8,749,886 Wide-angle wide band polarizing beam splitter 0 2012
 
Canon Kabushiki Kaisha (4)
* 6,991,334 Polarization beam splitting optical system 2 2004
* 2004/0184,006 Polarization beam splitting optical system 1 2004
* 7,008,059 Color combining optical system and image projection apparatus 3 2004
* 2004/0156,022 Color combining optical system and image projection apparatus 0 2004
 
SHARP KABUSHIKI KAISHA (1)
* 6,183,090 Projection type image display apparatus 39 1998
 
OERLIKON TRADING AG, TRUEBBACH (1)
* 6,288,844 Light splitter and optical transmitter configuration with a light splitter 15 1999
 
3M INNOVATIVE PROPERTIES COMPANY (2)
7,237,899 Highly efficient single panel and two panel projection engines 7 2003
7,568,804 Highly efficient single panel and two panel projection engines 1 2007
 
Simon Boothroyd (1)
* 7,926,949 Dual-mode three-dimensional projection display 8 2007
 
SAMSUNG DISPLAY CO., LTD. (34)
6,870,523 Device, system and method for electronic true color display 140 2000
7,113,152 Device, system and method for electronic true color display 25 2001
7,352,488 Spectrally matched print proofer 18 2001
* 2002/0149,546 Spectrally matched print proofer 15 2001
7,268,757 Device, system and method for color display 64 2002
6,962,414 Sequential projection color display using multiple imaging panels 18 2002
7,999,823 Device and method for projection device based soft proofing 0 2003
7,471,822 Method and apparatus for high brightness wide color gamut display 11 2003
* 2004/0174,389 Device, system and method for color display 37 2003
* 2004/0184,005 Sequential projection color display using multiple imaging panels 4 2004
8,228,275 Optimal subpixel arrangement for displays with more than three primary colors 2 2004
7,714,824 Multi-primary display with spectrally adapted back-illumination 8 2004
* 2007/0001,994 Multi-primary display with spectrally adapted back-illumination 48 2004
7,417,799 Multi-primary color display 10 2004
* 2006/0285,217 Multi-primary color display 3 2004
* 2005/0122,294 Color display devices and methods with enhanced attributes 91 2005
* 2005/0190,141 Device and method for projection device based soft proofing 23 2005
7,077,524 Sequential projection color display using multiple imaging panels 8 2005
* 2005/0275,806 Sequential projection color display using multiple imaging panels 0 2005
8,587,621 Sub-pixel rendering of a multiprimary image 0 2006
7,990,403 Device, system and method for color display 5 2007
7,995,019 Device, system and method for color display 6 2007
8,310,498 Spectrally matched print proofer 2 2008
* 2008/0218,784 SPECTRALLY MATCHED PRINT PROOFER 7 2008
8,885,120 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
8,289,266 Method, device and system for multi-color sequential LCD panel 2 2008
7,916,939 High brightness wide gamut display 0 2009
9,430,974 Multi-primary display with spectrally adapted back-illumination 0 2010
* 2010/0214,311 MULTI-PRIMARY DISPLAY WITH SPECTRALLY ADAPTED BACK-ILLUMINATION 4 2010
8,248,440 Device, system and method for color display 5 2011
* 9,091,884 Display apparatus 0 2011
* 2012/0320,173 DISPLAY APPARATUS 5 2011
8,558,857 Device, system and method for color display 0 2012
9,196,203 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
 
SHANGHAI LEXVU OPTO MICROELECTRONICS TECHNOLOGY CO., LTD. (2)
8,134,109 Optical projection engine device having a polarizing beam splitter and a control providing modulation instructions to modulation imagers 3 2009
* 2010/0110,383 OPTICAL PROJECTION ENGINE DEVICE 2 2009
 
MURATA MANUFACTURING CO., LTD. (1)
* 7,355,560 Dielectric lens, dielectric lens device, design method of dielectric lens, manufacturing method and transceiving equipment of dielectric lens 4 2006
 
CFPH, LLC (3)
8,483,756 Optical systems and elements with projection stabilization and interactivity 0 2009
* 2011/0086,703 OPTICAL SYSTEMS AND ELEMENTS WITH PROJECTION STABILIZATION AND INTERACTIVITY 3 2009
9,113,292 Optical systems and elements with projection stabilization and interactivity 0 2013
 
DUKE UNIVERSITY (3)
* 6,217,174 Image projection 20 1999
6,379,011 Methods of projecting images 6 2001
6,547,399 Image engine having multiple image sources with different response times for color operation 6 2002
 
IMAX THEATRES INTERNATIONAL LIMITED (2)
* 8,220,931 Etendue reduced stereo projection using segmented disk 2 2009
* 2011/0007,279 ETENDUE REDUCED STEREO PROJECTION USING SEGMENTED DISK 4 2009
 
Zhejiang Estar Display Tech Co., Ltd. (1)
* 9,279,996 3D projection optical system and dual-chip light splitting and light combining module thereof 0 2011
 
Boothroyd, Simon Andrew (2)
7,690,794 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 3 2007
 
MOXTEK, INC. (15)
* 2008/0055,719 Inorganic, Dielectric Grid Polarizer 12 2006
7,800,823 Polarization device to polarize and further control light 14 2006
7,630,133 Inorganic, dielectric, grid polarizer and non-zero order diffraction grating 20 2007
8,755,113 Durable, inorganic, absorptive, ultra-violet, grid polarizer 3 2007
7,961,393 Selectively absorptive wire-grid polarizer 15 2007
7,813,039 Multilayer wire-grid polarizer with off-set wire-grid and dielectric grid 14 2009
8,248,696 Nano fractal diffuser 0 2009
8,027,087 Multilayer wire-grid polarizer with off-set wire-grid and dielectric grid 16 2010
8,611,007 Fine pitch wire grid polarizer 6 2011
8,922,890 Polarizer edge rib modification 0 2012
8,873,144 Wire grid polarizer with multiple functionality sections 1 2012
8,913,320 Wire grid polarizer with bordered sections 0 2012
8,913,321 Fine pitch grid polarizer 2 2012
9,354,374 Polarizer with wire pair over rib 0 2014
9,348,076 Polarizer with variable inter-wire distance 0 2014
 
NATIONAL RESEARCH COUNCIL OF CANADA (2)
* 6,487,014 High isolation optical switch, isolator or circulator having thin film polarizing beam-splitters 7 1999
* 6,317,264 Thin film polarizing device having metal-dielectric films 8 1999
 
INTEL CORPORATION (2)
* 6,672,722 Projection engine 34 2001
* 2002/0191,235 Projection engine 25 2001
 
SILICON QUEST KABUSHIKI-KAISHA (1)
* 2008/0123,168 Mirror device modulating perpendicular incident light 1 2007
 
KINOPTICS TECHNOLOGIES INC. (1)
* 2007/0273,835 Digital projector with timer 6 2006
* Cited By Examiner