US Patent No: 5,808,794

Number of patents in Portfolio can not be more than 2000

Reflective polarizers having extended red band edge for controlled off axis color

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Importance

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Abstract

Reflective polarizers, which transmit one polarization and reflect the other polarization, have an extended red band edge in the off-axis transmission spectrum to control off axis color (OAC) hue. To control the OAC hue, the red band edge of the off-axis transmission spectrum, or OAC spectrum, is shifted beyond the boundary for red light, or to at least 600 nm. Even more preferably, the OAC spectrum is extended further into the red than any red emission peak of an associated lamp providing light into a system in which the reflective polarizer is used. The concept applies equally well to any type of reflective polarizer, such as multilayer reflective polarizers, cholesteric reflective polarizers, and the like. The resulting reflective polarizers are very useful for many different applications, such as liquid crystal displays.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
3M INNOVATIVE PROPERTIES COMPANYST PAUL, MN7902

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Cull, Brian D Glendale, AZ 20 636
Hoffman, Kevin M Atlanta, GA 8 208
Ouderkirk, Andrew J Woodbury, MN 274 5792
Weber, Michael F Shoreview, MN 186 5390

Cited Art

Patent Info (Count) # Cites Year
 
3M INNOVATIVE PROPERTIES COMPANY (22)
4,540,623 Coextruded multi-layered articles 104 1985
4,937,134 Elastomeric optical interference films 134 1989
5,122,905 Relective polymeric body 187 1990
5,122,906 Thick/very thin multilayer reflective polymeric body 137 1990
5,095,210 Multilayer film indicator for determining the integrity or authenticity of an item and process for using same 127 1990
5,486,949 Birefringent interference polarizer 245 1990
5,126,880 Polymeric reflective bodies with multiple layer types 119 1990
5,094,788 Interfacial surface generator 143 1990
5,217,794 Lamellar polymeric body 176 1991
5,278,694 Optically dissimilar composition for polymeric reflective bodies 103 1991
5,149,578 Multilayer film for tamper indication by use of optical interference reflection 91 1991
5,234,729 Multilayer polymeric reflective bodies for decorative and security applications 67 1992
5,233,465 Visibly transparent infrared reflecting film with color masking 106 1992
5,269,995 Coextrusion of multilayer articles using protective boundary layers and apparatus therefor 230 1992
5,339,198 All-polymeric cold mirror 91 1992
RE34605 Infrared reflective optical interference film 93 1992
5,316,703 Method of producing a lamellar polymeric body 185 1993
5,360,659 Two component infrared reflecting film 121 1993
5,389,324 Layer thickness gradient control in multilayer polymeric bodies 208 1993
5,540,978 All-polymeric ultraviolet light reflecting film 112 1994
5,448,404 Formable reflective multilayer body 185 1994
5,568,316 Formable reflective multilayer body 148 1995
 
POLAROID CORPORATION (4)
4,446,305 Optical device including birefringent polymer 178 1981
4,520,189 Optical device including birefringent aromatic amino carboxylic acid polymer 166 1984
4,521,588 Optical device including birefringent polyhydrazide polymer 151 1984
4,525,413 Optical device including birefringent polymer 187 1984
 
THE DOW CHEMICAL COMPANY (4)
5,103,337 Infrared reflective optical interference film 148 1990
5,094,793 Methods and apparatus for generating interfacial surfaces 130 1990
5,202,074 Method for producing injection molded multilayer articles 89 1991
5,552,927 All-polymeric cold mirror 82 1994
 
ENGELHARD CORPORATION (2)
5,089,318 Iridescent film with thermoplastic elastomeric components 84 1989
5,451,449 Colored iridescent film 74 1994
 
HONEYWELL INC. (1)
5,074,645 Full color three dimensional display system 18 1990
 
JDS UNIPHASE CORPORATION (1)
5,424,119 Polymeric sheet having oriented multilayer interference thin film flakes therein, product using the same and method 92 1994
 
MEARL CORPORATION, A CORPORATION OF NEW JERSEY (1)
4,310,584 Multilayer light-reflecting film 147 1979
 
REVEO, INC. (1)
5,691,789 Single-layer reflective super broadband circular polarizer and method of fabrication therefor 83 1995
 
SPECTRA-PHYSICS LASERS, INC. (1)
5,625,491 Broad band polarizing beam splitter 17 1995

Patent Citation Ranking

Forward Cites

Patent Info (Count) # Cites Year
 
3M INNOVATIVE PROPERTIES COMPANY (147)
6,101,032 Light fixture having a multilayer polymeric film 85 1995
6,088,067 Liquid crystal display projection system using multilayer optical film polarizers 37 1995
6,080,467 High efficiency optical devices 78 1995
6,565,982 Transparent multilayer device 16 1996
6,590,705 Optical film with co-continuous phases 29 1997
6,111,696 Brightness enhancement film 196 1997
6,057,961 Optical film with increased gain at non-normal angles of incidence 42 1997
6,368,699 Multilayer polymer film with additional coatings or layers 94 1997
6,124,971 Transflective displays with reflective polarizing transflector 90 1997
5,965,247 Process for forming reflective polarizer 172 1997
5,962,114 Polarizing beam-splitting optical component 127 1997
6,088,163 Metal-coated multilayer mirror 39 1997
6,569,515 Multilayered polymer films with recyclable or recycled layers 30 1998
6,531,230 Color shifting film 109 1998
6,207,260 Multicomponent optical body 33 1998
6,179,948 Optical film and process for manufacture thereof 34 1998
6,157,486 Retroreflective dichroic reflector 55 1998
6,157,490 Optical film with sharpened bandedge 56 1998
6,120,026 Game with privacy material 12 1998
6,113,811 Dichroic polarizing film and optical polarizer containing the film 42 1998
6,111,697 Optical device with a dichroic polarizer and a multilayer optical film 55 1998
6,053,795 Toy having image mode and changed image mode 17 1998
6,049,419 Multilayer infrared reflecting optical body 83 1998
6,045,894 Clear to colored security film 59 1998
6,024,455 Reflective article with concealed retroreflective pattern 57 1998
6,012,820 Lighted hand-holdable novelty article 26 1998
5,999,317 Toy mirror with transmissive image mode 18 1998
6,018,419 Diffuse reflectors 26 1998
6,749,427 Dental articles including post-formable multilayer optical films 3 1998
6,256,146 Post-forming continuous/disperse phase optical bodies 32 1998
5,991,077 Multilayer polarizer having a continuous and disperse phase 42 1998
6,031,665 Method of forming a multilayer film having a continuous and disperse phase 25 1998
6,088,159 Reflective polarizers having extended red band edge for controlled off axis color 20 1998
6,117,530 Optical film 51 1998
6,208,466 Multilayer reflector with selective transmission 44 1998
6,352,761 Modified copolyesters and improved multilayer reflective films 47 1999
6,274,221 Angular brightness microprismatic retroreflective film or sheeting incorporating a syndiotactic vinyl aromatic polymer 61 1999
6,322,236 Optical film with defect-reducing surface and method for making same 94 1999
6,096,375 Optical polarizer 64 1999
6,381,068 Reflective projection screen and projection system 54 1999
6,515,785 Optical devices using reflecting polarizing materials 39 1999
6,407,862 Electronic projection system with polymeric film optical components 9 1999
6,449,093 Optical bodies made with a birefringent polymer 20 1999
6,459,514 Multilayer polymer film with additional coatings or layers 30 1999
6,329,046 Optical film and process for manufacture thereof 11 1999
6,264,336 Display apparatus with corrosion-resistant light directing film 6 1999
6,498,683 Multilayer optical bodies 19 1999
6,451,414 Multilayer infrared reflecting optical body 23 1999
6,543,153 Reflective polarizer having improved properties and optical display with improved reflective polarizer 17 1999
6,210,785 High efficiency optical devices 14 1999
6,141,149 Multilayer film having a continuous and disperse phase 24 2000
6,262,842 Transflective displays with reflective polarizing transflector 81 2000
6,268,961 Optical films having at least one particle-containing layer 47 2000
6,296,927 Optical film 21 2000
6,590,707 Birefringent reflectors using isotropic materials and form birefringence 23 2000
6,449,092 Reflective polarizers having extended red band edge for reduced off axis color 9 2000
6,396,631 Light fixture having a multilayer polymeric film 13 2000
6,335,051 Dichroic polarizing film and optical polarizer containing the film 8 2000
6,475,609 Color shifting film glitter 8 2000
6,455,140 Visible mirror film glitter 9 2000
6,307,676 Optical device with a dichroic polarizer and a multilayer optical film 25 2000
6,760,157 Brightness enhancement film 83 2000
6,804,058 Electroluminescent light source and display incorporating same 12 2000
6,967,778 Optical film with sharpened bandedge 2 2000
6,630,283 Photothermographic and photographic elements having a transparent support having antihalation properties and properties for reducing woodgrain 9 2000
6,673,275 Method for making optical devices from homopolymers 0 2000
6,654,170 Optical device having continuous and disperse phases 3 2000
6,627,300 Optical device containing polymeric material domains having different degrees of randomness 6 2000
6,667,095 Multicomponent optical body 22 2001
6,641,883 High efficiency optical devices 3 2001
6,888,675 Transflective displays with reflective polarizing transflector 3 2001
6,534,158 Color shifting film with patterned fluorescent and non-fluorescent colorants 20 2001
6,506,480 Color shifting film with a plurality of fluorescent colorants 15 2001
6,917,399 Optical bodies containing cholesteric liquid crystal material and methods of manufacture 6 2001
6,573,963 Cholesteric liquid crystal optical bodies and methods of manufacture 63 2001
6,808,658 Method for making texture multilayer optical films 22 2001
6,830,713 Method for making coPEN/PMMA multilayer optical films 16 2001
6,827,886 Method for making multilayer optical films 26 2001
6,783,349 Apparatus for making multilayer optical films 20 2001
6,357,880 Display apparatus with corrosion-resistant light directing film 6 2001
6,737,154 Multilayer polymer film with additional coatings or layers 12 2001
6,829,071 Optical devices using reflecting polarizing materials 12 2001
6,613,819 Light stable articles 6 2001
6,635,337 Optical film 13 2001
6,876,427 Cholesteric liquid crystal optical bodies and methods of manufacture and use 6 2001
6,613,421 Optical film 15 2001
6,641,280 Hand-holdable toy light tube 12 2001
6,610,356 Dichroic polarizing film and optical polarizer containing the film 3 2001
6,641,900 Modified copolyesters and improved multilayer reflective films 19 2001
6,508,560 Display apparatus with corrosion-resistant light directing film 11 2001
6,905,220 Backlight system with multilayer optical film reflector 33 2002
6,574,045 Optical bodies made with a birefringent polymer 8 2002
6,788,463 Post-formable multilayer optical films and methods of forming 20 2002
7,095,009 Photopic detector system and filter therefor 6 2002
6,685,341 Light fixture having a multilayer polymeric film 14 2002
6,697,195 Loss enhanced reflective optical filters 26 2002
6,797,366 Color shifting film articles 14 2002
6,744,561 Multilayer optical bodies 8 2002
7,396,493 Multilayer optical film with melt zone to control delamination 0 2002
6,991,695 Method for subdividing multilayer optical film cleanly and rapidly 7 2002
6,721,096 Polarizing beam splitter 37 2002
6,626,545 Light directing construction having corrosion resistant feature 1 2002
7,038,745 Brightness enhancing reflective polarizer 13 2003
7,075,056 Photopic detector system having a filter with an interference element, an absorptive element and an absorber or reflector 0 2003
6,987,612 Optical film with co-continuous phases 3 2003
7,083,847 Optical film 3 2003
6,946,188 Modified copolyesters and improved multilayer reflective films 11 2003
6,888,677 Multilayer optical bodies 5 2003
7,403,680 Reflective light coupler 6 2003
7,329,887 Solid state light device 9 2003
7,250,611 LED curing apparatus and method 14 2003
7,163,327 Illumination system using a plurality of light sources 11 2003
7,456,805 Display including a solid state light device and method using same 21 2003
7,019,905 Multilayer reflector with suppression of high order reflections 1 2003
7,077,649 Dental articles including post-formable multilayer optical films 1 2004
7,202,489 LED modifying apparatus and method 3 2004
7,202,490 LED modifying apparatus and method 3 2004
7,189,983 LED modifying apparatus and method 8 2004
6,934,082 Optical devices using reflecting polarizing materials 13 2004
7,321,464 Electroluminescent light source and display incorporating same 6 2004
7,511,783 Optical laminated bodies, lighting equipment and area luminescence equipment 1 2004
7,138,173 Red-green-blue polymeric interference film 12 2004
7,329,465 Optical films incorporating cyclic olefin copolymers 1 2004
7,303,315 Illumination assembly using circuitized strips 23 2004
7,261,418 Projection apparatus 3 2004
6,999,233 Optical film with co-continuous phases 1 2004
7,298,442 Cholesteric liquid crystal optical bodies and methods of manufacture and use 0 2005
7,141,297 Multilayer optical bodies 7 2005
7,277,141 Optical bodies containing cholesteric liquid crystal material and methods of manufacture 0 2005
7,150,907 Modified copolyesters and improved multilayer reflective films 7 2005
7,147,903 High efficiency optical devices 3 2005
7,423,708 Display having a reflective polarizer 1 2005
7,348,066 Optical films incorporating cyclic olefin copolymers 2 2005
7,652,820 Reflective LCD projection system using wide-angle cartesian polarizing beam splitter and color separation and recombination prisms 1 2005
7,057,816 Optical film with co-continuous phases 1 2006
7,297,393 Optical film 1 2006
7,459,204 Modified copolyesters and improved multilayer reflective films 3 2006
7,826,009 Hybrid polarizer 1 2006
7,791,687 Display including reflective polarizer 1 2006
7,360,924 Illumination system using a plurality of light sources 9 2006
7,833,593 High efficiency optical devices 0 2007
7,855,705 Color liquid crystal display panel design 0 2007
7,658,526 Illumination system using a plurality of light sources 1 2008
8,168,302 Modified copolyesters and improved multilayer reflective films 0 2008
7,852,560 Display incorporating reflective polarizer 0 2008
7,851,054 Multilayer optical films having one or more reflection bands 2 2009
8,120,730 Hybrid polarizer 0 2010
 
MINNESOTA MINING AND MANUFACTURING COMPANY (3)
6,297,906 Light fixture containing optical film 34 1997
6,926,952 Anti-reflective polymer constructions and method for producing same 5 1998
6,082,876 Hand-holdable toy light tube with color changing film 32 1998
 
AGOURA TECHNOLOGIES, INC. (2)
7,351,346 Non-photolithographic method for forming a wire grid polarizer for optical and infrared wavelengths 5 2004
7,561,332 Applications and fabrication techniques for large scale wire grid polarizers 10 2005
 
INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE (2)
8,264,642 Color cholesteric liquid crystal display devices and fabrication methods thereof 0 2008
8,054,442 Low color shift polarizer assembly, and back light units and liquid crystal displays containing the same 0 2009
 
PANASONIC LIQUID CRYSTAL DISPLAY CO., LTD. (2)
7,006,173 Liquid crystal display device having particular reflective polarizer 71 1999
7,245,336 Liquid crystal display device 56 2006
 
SONY CORPORATION (2)
7,712,908 Light-transmitting film, method of forming light-transmitting film, and liquid crystal display 2 2006
7,918,571 Light-transmitting film, method of forming light-transmitting film, and liquid crystal display 0 2010
 
AMERICAN POLARIZERS, INC. (1)
6,808,394 System for demonstrating effects of polarized lens 3 2003
 
CITIZEN FINETECH MIYOTA CO., LTD. (1)
5,900,976 Display system including a polarizing beam splitter 27 1998
 
CITIZEN HOLDINGS CO., LTD. (1)
6,624,858 Light scattering type liquid crystal display panel for timepiece 1 2000
 
DAI NIPPON PRINTING CO., LTD. (1)
6,504,589 Backlight device and liquid crystal display device 39 1998
 
DUKE UNIVERSITY (1)
6,243,152 Contrast polymer dispersed liquid crystal projection display system 8 1996
 
NITTO DENKO CORPORATION (1)
7,593,079 Optical device, light-condensing backlight system, and liquid crystal display 0 2004
 
NOVOZYMES BIOTECH, INC. (1)
6,924,014 High efficiency optical devices 9 2003
 
PPG INDUSTRIES OHIO, INC. (1)
6,299,979 Color effect coating compositions having reflective organic pigments 13 1999