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公开(公告)号：US20230266515A1
公开(公告)日：2023-08-24
申请号：US18006459
申请日：2020-08-07
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Fan Long , Bharat R. Acharya , Jing Fei Chen , Huijie Xie , Zhe Hu , Bradley L. Givot , Carl A. Stover , Lin Zhao , Gilles J. Benoit , Robert D. Taylor
CPC classification number: G02B5/285 , B32B27/30 , B32B2307/412 , B32B2307/42 , B32B2457/00
Abstract: A housing (185) for an electronic device (170) includes an optical film (100) having an optical transmittance for substantially normally incident light having a band edge separating first and second wavelength ranges, where the first wavelength range extends from about 400 nm to about 700 nm and the second wavelength range is at least about 100 nm wide and disposed between about 800 nm and about 1100 nm. For substantially normally incident light, an average optical reflectance of the optical film is greater than about 90% in the first wavelength range, and an average optical transmittance of the optical film is greater than about 80% in the second wavelength range. For at least one frequency in a range of about 0.1 GHz to about 90 GHz and for substantially normally incident radiation, the optical film transmits at least about 95% of the incident radiation.
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公开(公告)号：US20230214062A1
公开(公告)日：2023-07-06
申请号：US17996583
申请日：2021-05-04
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Bharat R. Acharya , Robert D. Taylor , Joseph P. Attard , Benjamin J. Forsythe , David T. Yust , Matthew E. Sousa , Jason S. Petaja , Anthony M. Renstrom , William Blake Kolb , Matthew S. Cole , Matthew S. Stay , Matthew R.D. Smith , Jeremy O. Swanson , Tri D. Pham , David A. Rosen , Qunyi Chen , Lisa A. DeNicola , Quinn D. Sanford , Carl A. Stover , Lin Zhao , Gilles J. Benoit
CPC classification number: G06F3/0421 , G02B5/305 , G02B5/0226 , G02B6/0051
Abstract: A display system for sensing a finger of a user applied to the display system includes a display panel; a sensor for sensing the finger; a sensing light source configured to emit a first light having a first wavelength W1; and a reflective polarizer disposed between the display panel and the sensor. For a substantially normally incident light, an optical transmittance of the reflective polarizer versus wavelength for a first polarization state has a band edge such that for a first wavelength range extending from a smaller wavelength L1 to a greater wavelength L2 and including W1, where 30 mn≤L2−L1≤50 nm and L1 is greater than and within about 20 nm of a wavelength L3 corresponding to an optical transmittance of about 50% along the band edge, the optical transmittance has an average of greater than about 75%.
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公开(公告)号：US11156757B2
公开(公告)日：2021-10-26
申请号：US16789539
申请日：2020-02-13
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Adam D. Haag , Timothy J. Nevitt , Carl A. Stover , Andrew J. Ouderkirk , Robert D. Taylor , Zhaohui Yang
IPC: G02B5/30 , G02F1/1335
Abstract: Optical films are disclosed that include a plurality of interference layers. Each interference layer reflects or transmits light primarily by optical interference. The total number of the interference layers is less than about 1000. For a substantially normally incident light in a predetermined wavelength range, the plurality of interference layers has an average optical transmittance greater than about 85% for a first polarization state, an average optical reflectance greater than about 80% for an orthogonal second polarization state, and an average optical transmittance less than about 0.2% for the second polarization state.
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公开(公告)号：US20210325587A1
公开(公告)日：2021-10-21
申请号：US17273047
申请日：2019-08-29
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Matthew B. Johnson , Adam D. Haag , Carl A. Stover , Timothy J. Nevitt , William F. Edmonds , Stephen A. Johnson
IPC: G02B5/30
Abstract: Multilayer reflective polarizers are described. In particular, multilayer reflective polarizers that include both crystalline high index layers and low index layers are disclosed. These reflective polarizers may be particularly suitable for automotive, architectural, and industrial applications.
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35.发明授权公开(公告)号：US11099312B2
公开(公告)日：2021-08-24
申请号：US16787608
申请日：2020-02-11
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Timothy J. Nevitt , Carl A. Stover , Gilles J. Benoit , Kristopher J. Derks , Zhaohui Yang
Abstract: Multilayer optical film reflective polarizers previously considered to have excessive off-axis color can provide adequate performance in an LC display in an “on-glass” configuration, laminated to a back absorbing polarizer of the display, without any light diffusing layer or air gap in such laminate. The reflective polarizer is a tentered-one-packet (TOP) multilayer film, having only one packet of microlayers, and oriented using a standard tenter such that birefringent microlayers in the film are biaxially birefringent. The thickness profile of optical repeat units (ORUs) in the microlayer packet is tailored to avoid excessive perceived color at normal and oblique angles. Color at high oblique angles in the white state of the display is reduced by positioning thicker ORUs closer to the absorbing polarizer, and by ensuring that, with regard to a boxcar average of the ORU thickness profile, the average slope from an ORU(600) to an ORU(645) does not exceed 1.8 times the average slope from an ORU(450) to the ORU(600).
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Patent Agency Ranking
公开(公告)号：US20200183065A1
公开(公告)日：2020-06-11
申请号：US16789539
申请日：2020-02-13
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Adam D. Haag , Timothy J. Nevitt , Carl A. Stover , Andrew J. Ouderkirk , Robert D. Taylor , Zhaohui Yang
IPC: G02B5/30 , G02F1/1335
Abstract: Optical films are disclosed that include a plurality of interference layers. Each interference layer reflects or transmits light primarily by optical interference. The total number of the interference layers is less than about 1000. For a substantially normally incident light in a predetermined wavelength range, the plurality of interference layers has an average optical transmittance greater than about 85% for a first polarization state, an average optical reflectance greater than about 80% for an orthogonal second polarization state, and an average optical transmittance less than about 0.2% for the second polarization state.
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37.发明申请公开(公告)号：US20200174170A1
公开(公告)日：2020-06-04
申请号：US16787608
申请日：2020-02-11
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Timothy J. Nevitt , Carl A. Stover , Gilles J. Benoit , Kristopher J. Derks , Zhaohui Yang
Abstract: Multilayer optical film reflective polarizers previously considered to have excessive off-axis color can provide adequate performance in an LC display in an “on-glass” configuration, laminated to a back absorbing polarizer of the display, without any light diffusing layer or air gap in such laminate. The reflective polarizer is a tentered-one-packet (TOP) multilayer film, having only one packet of microlayers, and oriented using a standard tenter such that birefringent microlayers in the film are biaxially birefringent. The thickness profile of optical repeat units (ORUs) in the microlayer packet is tailored to avoid excessive perceived color at normal and oblique angles. Color at high oblique angles in the white state of the display is reduced by positioning thicker ORUs closer to the absorbing polarizer, and by ensuring that, with regard to a boxcar average of the ORU thickness profile, the average slope from an ORU(600) to an ORU(645) does not exceed 1.8 times the average slope from an ORU(450) to the ORU(600).
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38.发明申请公开(公告)号：US20200166684A1
公开(公告)日：2020-05-28
申请号：US16624644
申请日：2018-06-26
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Kristy A. Gillette , Matthew B. Johnson , Carl A. Stover
IPC: G02B5/30 , B32B27/06 , G02F1/1335
Abstract: Rolls of film are described. In particular, rolls of film including multilayer birefringent polarizers having low pass axis variation are described. The multilayer birefringent polarizers have low pass axis variation across a full crossweb width of the roll of film.
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公开(公告)号：US10545273B2
公开(公告)日：2020-01-28
申请号：US15776699
申请日：2016-11-16
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Carl A. Stover , Kristopher J. Derks , Timothy J. Nevitt , Gilles J. Benoit
IPC: G02B5/30 , B29D11/00 , B32B17/06 , G02F1/1335 , B29L31/34
Abstract: Multilayer optical film reflective polarizers previously considered to have excessive off-axis color can provide adequate performance in an LC display without any high haze light diffusing layer or air gap between the reflective polarizer and the back absorbing polarizer of the display. The reflective polarizer has only one packet of microlayers, and is oriented using a standard tenter such that birefringent microlayers in the film are biaxially birefringent. The microlayers in the packet have a layer thickness profile suitably tailored to avoid excessive perceived color at normal and oblique angles. A laminate made by combining this type of reflective polarizer with an absorbing polarizer, without an air gap or any high haze light diffusing layer or structure between the polarizers, can be used and incorporated into a liquid crystal display or the like with adequate color performance both at normal incidence and oblique incidence up to a polar angle of 60 degrees.
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公开(公告)号：US10228502B2
公开(公告)日：2019-03-12
申请号：US15499727
申请日：2017-04-27
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Carl A. Stover , Timothy J. Hebrink , Martin E. Denker , Jeffery N. Jackson , Kristopher J. Derks
Abstract: The present disclosure is directed to optical bodies including a first optical film, a second optical film and one or more strippable boundary layers disposed between the first and second optical films. Each major surface of a strippable boundary layer may be disposed adjacent to an optical film or another strippable boundary layer. At least one of the first and second optical films may include a reflective polarizer. The present disclosure is also directed to methods of processing such optical bodies.
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