US Patent No: 6,624,936

Number of patents in Portfolio can not be more than 2000

Color-compensated information displays

ALSO PUBLISHED AS: 20010055153

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Importance

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Abstract

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A polarizer has low color shift and is particularly well suited to use in an LCD display. The polarizer has a double pass color shift of .vertline..DELTA.x.vertline..ltoreq.0.005 and .vertline..DELTA.y.vertline..ltoreq.0.005 for illumination by a C-illuminant, and a double pass contrast modulation of at least 90%. The display includes two or more layers stacked together, at least one of the layers being an absorbing polarizer having a double pass color shift of .vertline..DELTA.x.vertline..ltoreq.0.005 and .vertline..DELTA.y.vertline..ltoreq.0.005 for illumination by a C-illuminant. A polarizer with a selected color shift is also used with a rear projection screen having a dispersing layer stacked together with first absorbing polarizer. The polarizer has a single pass color shift with at least one of .DELTA.x and .DELTA.y being negative under illumination by a C-illuminant, and a polarization co-efficiency greater than 90%.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
3M INNOVATIVE PROPERTIES COMPANYST PAUL, MN8969

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ebihara, Ikuko St. Paul, MN 17 178
Gilligan, Gregory E Hastings, MN 20 207
Kotchick, Keith M St. Paul, MN 58 879

Cited Art Landscape

Patent Info (Count) # Cites Year
 
3M INNOVATIVE PROPERTIES COMPANY (4)
4,591,512 Method of making light polarizer 20 1985
6,449,089 Rear projection screen with enhanced contrast 26 1999
6,396,631 Light fixture having a multilayer polymeric film 14 2000
2001/0019,182 Method for making copen/pmma multilayer optical films 14 2001
 
OPTICAL DEVICES INCORPORATED (1)
4,416,946 High stability polarizer 10 1982
 
SHARP KABUSHIKI KAISHA (1)
5,400,158 Liquid crystal display with optically anisotropic member having a twisted structure and phase plate 81 1993

Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
DONNELLY CORPORATION (66)
7,855,755 Interior rearview mirror assembly with display 73 2006
8,095,310 Video mirror system for a vehicle 35 2008
8,194,133 Vehicular video mirror system 25 2008
7,871,169 Vehicular signal mirror 44 2008
7,826,123 Vehicular interior electrochromic rearview mirror assembly 43 2009
8,462,204 Vehicular vision system 0 2009
8,044,776 Rear vision system for vehicle 31 2009
8,083,386 Interior rearview mirror assembly with display device 26 2009
7,859,737 Interior rearview mirror system for a vehicle 38 2009
7,898,719 Rearview mirror assembly for vehicle 36 2009
8,072,318 Video mirror system for vehicle 30 2009
7,821,697 Exterior reflective mirror element for a vehicular rearview mirror assembly 46 2009
7,926,960 Interior rearview mirror system for vehicle 35 2009
8,294,975 Automotive rearview mirror assembly 14 2010
7,898,398 Interior mirror system 40 2010
7,832,882 Information mirror system 35 2010
7,822,543 Video display system for vehicle 35 2010
7,864,399 Reflective mirror assembly 51 2010
8,179,236 Video mirror system suitable for use in a vehicle 24 2010
7,916,009 Accessory mounting system suitable for use in a vehicle 46 2010
7,906,756 Vehicle rearview mirror system 38 2010
7,815,326 Interior rearview mirror system 37 2010
8,277,059 Vehicular electrochromic interior rearview mirror assembly 3 2010
8,282,226 Interior rearview mirror system 3 2010
8,000,894 Vehicular wireless communication system 30 2010
8,164,817 Method of forming a mirrored bent cut glass shape for vehicular exterior rearview mirror assembly 19 2010
7,918,570 Vehicular interior rearview information mirror system 32 2010
8,228,588 Interior rearview mirror information display system for a vehicle 15 2010
8,335,032 Reflective mirror assembly 6 2010
8,511,841 Vehicular blind spot indicator mirror 0 2011
8,019,505 Vehicle information display 32 2011
8,179,586 Rearview mirror assembly for vehicle 18 2011
8,063,753 Interior rearview mirror system 28 2011
8,049,640 Mirror assembly for vehicle 35 2011
8,106,347 Vehicle rearview mirror system 30 2011
8,525,703 Interior rearview mirror system 0 2011
8,047,667 Vehicular interior rearview mirror system 32 2011
8,162,493 Interior rearview mirror assembly for vehicle 20 2011
8,121,787 Vehicular video mirror system 18 2011
8,095,260 Vehicle information display 27 2011
8,427,288 Rear vision system for a vehicle 2 2011
8,325,055 Mirror assembly for vehicle 0 2011
8,177,376 Vehicular interior rearview mirror system 17 2011
8,779,910 Interior rearview mirror system 0 2011
8,653,959 Video mirror system for a vehicle 0 2011
8,282,253 Mirror reflective element sub-assembly for exterior rearview mirror of a vehicle 3 2011
8,325,028 Interior rearview mirror system 18 2012
8,170,748 Vehicle information display system 4 2012
8,304,711 Vehicle rearview mirror system 16 2012
8,271,187 Vehicular video mirror system 3 2012
8,559,093 Electrochromic mirror reflective element for vehicular rearview mirror assembly 1 2012
8,355,839 Vehicle vision system with night vision function 1 2012
8,465,162 Vehicular interior rearview mirror system 0 2012
8,379,289 Rearview mirror assembly for vehicle 3 2012
8,400,704 Interior rearview mirror system for a vehicle 2 2012
8,503,062 Rearview mirror element assembly for vehicle 1 2012
8,506,096 Variable reflectance mirror reflective element for exterior mirror assembly 1 2012
8,833,987 Mirror reflective element sub-assembly for exterior rearview mirror of a vehicle 0 2012
8,465,163 Interior rearview mirror system 1 2012
8,610,992 Variable transmission window 0 2012
8,508,384 Rearview mirror assembly for vehicle 0 2012
8,797,627 Exterior rearview mirror assembly 0 2012
8,577,549 Information display system for a vehicle 0 2013
8,705,161 Method of manufacturing a reflective element for a vehicular rearview mirror assembly 0 2013
8,608,327 Automatic compass system for vehicle 1 2013
8,727,547 Variable reflectance mirror reflective element for exterior mirror assembly 0 2013
 
MAGNA ELECTRONICS INC. (10)
7,888,629 Vehicular accessory mounting system with a forwardly-viewing camera 49 2009
7,914,188 Interior rearview mirror system for a vehicle 47 2009
8,309,907 Accessory system suitable for use in a vehicle and accommodating a rain sensor 17 2010
7,994,471 Interior rearview mirror system with forwardly-viewing camera 42 2011
8,094,002 Interior rearview mirror system 39 2011
8,100,568 Interior rearview mirror system for a vehicle 30 2011
8,134,117 Vehicular having a camera, a rain sensor and a single-ball interior electrochromic mirror assembly attached at an attachment element 32 2011
8,267,559 Interior rearview mirror assembly for a vehicle 3 2012
8,288,711 Interior rearview mirror system with forwardly-viewing camera and a control 16 2012
8,543,330 Driver assist system for vehicle 1 2012
 
MOXTEK, INC. (8)
7,800,823 Polarization device to polarize and further control light 6 2006
7,630,133 Inorganic, dielectric, grid polarizer and non-zero order diffraction grating 12 2007
8,755,113 Durable, inorganic, absorptive, ultra-violet, grid polarizer 0 2007
7,961,393 Selectively absorptive wire-grid polarizer 4 2007
7,813,039 Multilayer wire-grid polarizer with off-set wire-grid and dielectric grid 6 2009
8,248,696 Nano fractal diffuser 0 2009
8,027,087 Multilayer wire-grid polarizer with off-set wire-grid and dielectric grid 7 2010
8,611,007 Fine pitch wire grid polarizer 0 2011
 
SAMSUNG DISPLAY CO., LTD. (5)
7,638,796 Organic light-emitting display device 2 2006
8,198,802 Organic light emitting diode display for suppressing reflection of external light 1 2009
8,169,386 Organic light emitting diode display 0 2009
8,058,783 Organic light emitting diode display for suppressing reflection of external light 3 2009
8,148,894 Organic light emitting diode display 1 2009
 
3M INNOVATIVE PROPERTIES COMPANY (3)
6,985,291 Non-inverting transflective assembly 100 2001
7,084,938 Non-inverting transflective assembly 0 2004
7,245,431 Reflective polarizer assembly 23 2006
 
MAGNA MIRRORS OF AMERICA, INC. (3)
8,154,418 Interior rearview mirror system 22 2009
8,508,383 Interior rearview mirror system 0 2012
8,654,433 Rearview mirror assembly for vehicle 1 2013
 
SERIOUS ENERGY, INC. (3)
7,525,604 Windows with electrically controllable transmission and reflection 46 2006
7,973,998 Temperature activated optical films 1 2008
8,102,478 Windows with electrically controllable transmission and reflection 0 2009
 
LG DISPLAY CO., LTD. (1)
7,623,208 Optical efficiency enhancing film and liquid crystal display using the same 1 2004
 
MAGNA ELECTRONICS IN. (1)
8,676,491 Driver assist system for vehicle 0 2013
 
MUSE GREEN INVESTMENTS LLC (1)
7,827,491 Systems and methods for video editing 3 2006
 
NITTO DENKO CORPORATION (1)
7,593,079 Optical device, light-condensing backlight system, and liquid crystal display 0 2004
 
SEIKO EPSON CORPORATION (1)
7,057,681 Liquid crystal display with mirror mode having top reflective polarizer 101 2003

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
11.5 Year Payment $7400.00 $3700.00 $1850.00 Mar 23, 2015
Fee Large entity fee small entity fee micro entity fee
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