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公开(公告)号:US12265242B2
公开(公告)日:2025-04-01
申请号:US17636394
申请日:2019-09-27
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor: Fuguo Xu , Adam D. Haag , Martin E. Denker , Timothy J. Nevitt
Abstract: An optical system (200) includes an emissive display (220) and a reflective polarizer (100) disposed on the display (220). The display (220) includes a blue pixel (222b) emitting light having a peak at a wavelength λb. For substantially normally incident light: for the wavelength λb, the reflective polarizer (100) reflects at least 30% of the incident light having a first polarization state (b) and transmits at least 75% of the incident light having an orthogonal second polarization state(a); and for at least one wavelength λ1 greater than λb, λ1-λb≤50 nm, the reflective polarizer (100) transmits at least 75% of the incident light for each of the first and second polarization states. For the wavelength λb, the reflective polarizer (100) has a maximum optical transmittance Tmax for light incident at a first incident angle, and an optical transmittance Tmax/2 for light incident at a second incident angle greater than the first incident angle by less than about 50 degrees.
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公开(公告)号:US12253702B2
公开(公告)日:2025-03-18
申请号:US17260413
申请日:2019-07-09
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor: Adam D. Haag , Matthew B. Johnson , Carl A. Stover , Timothy J. Nevitt
Abstract: Optical films are described. In particular, optical films including a reflective polarizer portion and an infrared portion, with no adhesive between these two portions, are described. These optical films may be particularly suitable for combiner applications, including automotive heads up display applications with demanding ambient environments.
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公开(公告)号:US20240427070A1
公开(公告)日:2024-12-26
申请号:US18828201
申请日:2024-09-09
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor: Adam D. Haag , Brianna N. Wheeler , Matthew B. Johnson , William F. Edmonds
IPC: G02B5/30
Abstract: An optical film includes a plurality of alternating first and second layers. The first layers have a first in-plane birefringence, the second layers have a second in-plane birefringence, and the second in-plane birefringence is less than the first in-plane birefringence and greater than 0.03. The first layers may include polyethylene terephthalate homopolymer and the second layers may include glycol-modified co (polyethylene terephthalate). The optical film has a shrinkage along a first direction of greater than 4% and a shrinkage along an orthogonal second direction of greater than 3% when heated at 150° C. for 15 minutes. A glass laminate is prepared by disposing the optical film between glass layers and laminating the optical film to the glass layers.
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公开(公告)号:US20240369751A1
公开(公告)日:2024-11-07
申请号:US18776825
申请日:2024-07-18
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor: Adam D. Haag , William B. Black , Robert M. Biegler , Matthew B. Johnson , Edward J. Kivel
Abstract: A multilayer optical film includes a plurality of polymeric layers arranged sequentially adjacent to each other. A difference in thickness between spaced apart first and second polymeric layers in the plurality of polymeric layers is less than about 10%. Each polymeric layer that is disposed between the first and second polymeric layers has a thickness less than about 400 nm. Each layer in a group of at least three polymeric layers in the plurality of polymeric layers that are disposed between the first and second polymeric layers has a thickness greater than an average thickness of the first and second polymeric layers by about 20% to about 500%. The group of at least three polymeric layers includes at least one pair of immediately adjacent polymeric layers.
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公开(公告)号:US12092855B2
公开(公告)日:2024-09-17
申请号:US18038285
申请日:2021-11-02
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor: Adam D. Haag , Matthew B. Johnson , Ryan T. Fabick
IPC: F21V8/00 , G02F1/13357
CPC classification number: G02B6/0056 , G02B6/0055 , G02F1/13362
Abstract: An optical system includes an extended illumination source configured to emit light from an extended emission surface thereof toward a display panel. The emitted light includes substantially distinct blue, green and red emission spectra having respective blue, green and red peaks at respective blue, green and red peak wavelengths, and corresponding blue, green and red full widths at half maxima (FWHMs). The blue FWHM extends from a smaller blue wavelength to a longer blue wavelength. The optical system further includes reflective polarizer disposed on the emission surface of the extended illumination source. The reflective polarizer includes a plurality of first polymeric layers. The optical system also includes an optical filter disposed between the reflective polarizer and the emission surface of the extended illumination source.
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公开(公告)号:US20240280737A1
公开(公告)日:2024-08-22
申请号:US18650643
申请日:2024-04-30
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor: Nicholas C. Erickson , David G. Freier , Robert L. Brott , Bing Hao , David A. Rosen , Stephen M. Menke , Bert T. Chien , Seong Taek Lee , Encai Hao , Zhaohui Yang , Albert I. Everaerts , Yongshang Lu , William Blake Kolb , Keith R. Bruesewitz , Adam D. Haag , Sun-Yong Park , Timothy J. Nevitt (Deceased) , Brianna N. Wheeler , Jody L. Peterson , Gilles J. Benoit
Abstract: An organic light emitting diode (OLED) display includes a pixelated OLED display panel and a color-correction component disposed on the pixelated OLED display panel. The pixelated OLED display panel has a ratio of blue-to-red color mixing weights at 30 degrees of β030, and a ratio of blue-to-red color mixing weights at 45 degrees of β045, where β045≥β030≥1.05 and 1.5≥β045≥1.1. The color-correction component is configured such that a ratio of blue-to-red color mixing weights at 45 degrees of the display is β45 and a ratio of blue-to-red color mixing weights at 30 degrees of the display is β30, where β045−0.1≥β45≥2.1−β045 and β030−0.05≥β30≥2.05−β030. Methods of making OLED displays are described.
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公开(公告)号:US12013559B2
公开(公告)日:2024-06-18
申请号:US16650519
申请日:2018-09-28
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor: Gregg A. Ambur , Jo A. Etter , Adam D. Haag , Carl A. Stover , Timothy J. Nevitt , Zhisheng Yun , Timothy L. Wong
CPC classification number: G02B5/305 , G02B27/283
Abstract: An optical system including a first optical element having a curved first major surface and an optical stack bonded and conforming to the curved first major surface of the first optical element is described. The optical stack includes a reflective polarizer substantially transmitting light having a first polarization state and substantially reflecting light having an orthogonal second polarization state and a non-adhesive flexible optical layer bonded to the reflective polarizer and comprising substantially parallel opposing first and second major surfaces. At least one location on the non-adhesive flexible optical layer has an optical retardance of less than about 100 nm or greater than about 200 nm at a wavelength of about 550 nm.
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公开(公告)号:US20240162204A1
公开(公告)日:2024-05-16
申请号:US18550301
申请日:2022-04-04
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor: Yuhsin Lu , Bharat R. Acharya , Adam D. Haag
IPC: H01L25/075 , G02B5/30 , H01L27/15 , H01L33/50
CPC classification number: H01L25/0753 , G02B5/305 , H01L27/156 , H01L33/505
Abstract: A backlight includes a plurality of light sources, a reflective polarizer disposed on the plurality of light sources, and an optical film disposed between the reflective polarizer and the plurality of discrete spaced apart light sources. For a substantially collimated incident light, for a visible wavelength range, and for a first incident angle of less than about 5 degrees, the reflective polarizer has an average optical reflectance of at least 60% when the incident light is p-polarized and an average optical transmittance of at least 60% when the incident light is s-polarized. For the average of p-polarized and s-polarized incident lights and the visible wavelength range, the optical film has an average optical transmittance T1 for the first incident angle, and an average transmittance T2 for a second incident angle of greater than about 35 degrees, such that T1/T2≥1.5.
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公开(公告)号:US20230417979A1
公开(公告)日:2023-12-28
申请号:US18038285
申请日:2021-11-02
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor: Adam D. Haag , Matthew B. Johnson , Ryan T. Fabick
IPC: F21V8/00
CPC classification number: G02B6/0056 , G02B6/0055
Abstract: An optical system includes an extended illumination source configured to emit light from an extended emission surface thereof toward a display panel. The emitted light includes substantially distinct blue, green and red emission spectra having respective blue, green and red peaks at respective blue, green and red peak wavelengths, and corresponding blue, green and red full widths at half maxima (FWHMs). The blue FWHM extends from a smaller blue wavelength to a longer blue wavelength. The optical system further includes reflective polarizer disposed on the emission surface of the extended illumination source. The reflective polarizer includes a plurality of first polymeric layers. The optical system also includes an optical filter disposed between the reflective polarizer and the emission surface of the extended illumination source.
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公开(公告)号:US20230333297A1
公开(公告)日:2023-10-19
申请号:US18337722
申请日:2023-06-20
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor: Adam D. Haag , Sun-Yong Park , Timothy J. Nevitt , Brianna N. Wheeler , Jody L. Peterson
CPC classification number: G02B5/3041 , G02B1/08 , G02B5/3083 , G02B5/305 , H10K50/868 , G02B5/0841
Abstract: A partial reflector including a plurality of optical repeat units where each optical repeat unit includes first and second polymer layers is described. A refractive index difference between the first and second polymer layers along a first axis may be Δny, a refractive index difference between the first and second polymer layers along an orthogonal second axis may be Δnx, where |Δnx| is at least 0.1 and |Δny| is no more than 0.04. The optical repeat units may have a smallest optical thickness T1 proximate a first side of the optical stack and a largest optical thickness T2 proximate an opposite second side of the optical stack, where (T2−T1)/(T2+T1) can be a range of 0.05 to 0.2, and T2 can be at least 350 nm and no more 1250 nm. The partial reflector may be used in a circular polarizer for correcting color shift with view angle in a display.
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