公开(公告)号：US20250035984A1

公开(公告)日：2025-01-30

申请号：US18917254

申请日：2024-10-16

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Carl A. Stover ,  Matthew E. Sousa ,  Bharat R. Acharya ,  Benjamin J. Forsythe ,  Robert D. Taylor ,  Quinn D. Sanford

IPC: G02F1/13357 ,  G02F1/1333 ,  G02F1/1335

Abstract: A backlight including a front reflector disposed on a back reflector and defining a cavity therebetween. For a visible wavelength range and for a first incident angle of less than 5 degrees, the front reflector has an average transmittance of less than 20% for the incident light polarized along a first direction, and an average transmittance of between 20% and 85% for the incident light polarized along an orthogonal second direction. For a visible wavelength range and for a second incident angle of greater than 40 degrees, the front reflector has an average transmittance of less than 40% for each of the first and second directions. For at least a first wavelength in an infrared wavelength range, the front reflector has a transmittance of greater than about 40% for each of the first and second incident angles and for each of the first and second directions. For each of the first and second incident angles, for the incident light polarized along each of the first and second directions, the back reflector has a transmittance of greater than 30% for the first infrared wavelength, and an average transmittance of less than 20% in the visible range.

公开(公告)号：US20240231154A1

公开(公告)日：2024-07-11

申请号：US18558425

申请日：2022-05-17

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Carl A. Stover ,  Matthew E. Sousa ,  Bharat R. Acharya ,  Benjamin J. Forsythe ,  Robert D Taylor ,  Quinn D. Sanford

IPC: G02F1/13357 ,  G02F1/1333 ,  G02F1/1335

CPC classification number: G02F1/13362 ,  G02F1/13338 ,  G02F1/133504 ,  G02F1/133553 ,  G02F1/133615 ,  G02F2203/11

Abstract: A backlight including a front reflector disposed on a back reflector and defining a cavity therebetween. For a visible wavelength range and for a first incident angle of less than 5 degrees, the front reflector has an average transmittance of less than 20% for the incident light polarized along a first direction, and an average transmittance of between 20% and 85% for the incident light polarized along an orthogonal second direction. For a visible wavelength range and for a second incident angle of greater than 40 degrees, the front reflector has an average transmittance of less than 40% for each of the first and second directions. For at least a first wavelength in an infrared wavelength range, the front reflector has a transmittance of greater than about 40% for each of the first and second incident angles and for each of the first and second directions. For each of the first and second incident angles, for the incident light polarized along each of the first and second directions, the back reflector has a transmittance of greater than 30% for the first infrared wavelength, and an average transmittance of less than 20% in the visible range.

公开(公告)号：US12001042B2

公开(公告)日：2024-06-04

申请号：US17878347

申请日：2022-08-01

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Karissa L. Eckert ,  Michelle L Toy ,  Adam D. Haag ,  Matthew B. Johnson ,  Albert I. Everaerts ,  Quinn D. Sanford

IPC: G02B5/30 ,  C09J7/29 ,  C09J201/02 ,  B32B37/12 ,  C09J133/00 ,  C09J133/08

CPC classification number: G02B5/305 ,  C09J7/29 ,  C09J201/02 ,  B32B2037/1253 ,  B32B2307/40 ,  B32B2307/42 ,  B32B2307/538 ,  B32B2457/20 ,  B32B2457/202 ,  C09J133/00 ,  C09J133/08 ,  C09J2301/302 ,  C09K2323/03 ,  C09K2323/031 ,  C09K2323/05 ,  C09K2323/057 ,  C09K2323/06 ,  C09K2323/061

Abstract: Optical bodies are described. In particular, optical bodies having a birefringent multilayer optical film and a continuous adhesive layer with a thickness less than 20 micrometers are described. Optical bodies described herein exhibit reduced occurrence and severity of a non-uniformity defect known as “orange peel.”

公开(公告)号：US20230228918A1

公开(公告)日：2023-07-20

申请号：US17923269

申请日：2021-04-26

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Tri D. Pham ,  David A. Rosen ,  Qunyi Chen ,  Lisa A. DeNicola ,  Quinn D. Sanford ,  Matthew S. Cole ,  Bharat R. Acharya ,  Matthew E. Sousa ,  Robert D. Taylor ,  Benjamin J. Forsythe

IPC: G02B5/02

CPC classification number: G02B5/021 ,  G02B5/0268 ,  G02B5/0284 ,  G02B5/0294

Abstract: An optically diffusive film includes an optical substrate layer with opposing first and second major surfaces; and an optical layer disposed on the second major surface of the optical substrate layer and including a structured major surface having a plurality of spaced apart elongated structures elongated along a same first direction and arranged at a substantially uniform density, each elongated structure including a peak such that, in a plane of a cross-section of the elongated structure that is parallel to the first direction and comprises the peak, the elongated structure has a substantially flat top region; wherein for substantially normally incident light and a visible wavelength range and an infrared wavelength range, the optical substrate layer has an average total transmittance or reflectance of greater than about 60% in the visible wavelength range and an average specular transmittance of greater than about 60% in the infrared wavelength range.

公开(公告)号：US20220137455A1

公开(公告)日：2022-05-05

申请号：US17435203

申请日：2020-02-18

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Gilles J. Benoit ,  Carl A. Stover ,  Matthew B. Johnson ,  Ryan T. Fabick ,  Quinn D. Sanford

IPC: G02F1/1335 ,  G02F1/13357

Abstract: An optical stack for reflecting and transmitting light in a predetermined wavelength range includes stacked first and second optical films, the predetermined wavelength range defining a first wavelength range and a remaining wavelength range. For normally incident light and for each wavelength in a first wavelength range, the first optical film substantially reflects light having a first polarization state, and substantially transmits light having a second polarization state. For each of the first and second polarization states, for wavelengths in the first wavelength range, the second optical film 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, where the second incident angle is greater than the first incident angle by less than about 50 degrees. For wavelengths in the remaining wavelength range, the second optical film reflects at least 80% of light.

公开(公告)号：US20210278586A1

公开(公告)日：2021-09-09

申请号：US16619300

申请日：2018-06-05

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Quinn D. Sanford ,  Kenneth A. Epstein ,  Matthew B. Johnson ,  Gary T. Boyd

IPC: F21V8/00 ,  G02B5/30

Abstract: Backlights are described. In particular, backlights including wide-web turning films and reflective polarizers having quarter-wave retarders are disclosed. Such configurations can provide turning film systems with improved luminance uniformity for large format displays.

公开(公告)号：US20250076555A1

公开(公告)日：2025-03-06

申请号：US18950497

申请日：2024-11-18

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Bharat R. Acharya ,  Brett J. Sitter ,  Robert D. Taylor ,  Zhicheng Tian ,  James P. DiZio ,  Quinn D. Sanford ,  Kent C. Hackbarth ,  Matthew E. Sousa

IPC: G02B5/30 ,  G02B1/04 ,  G02B5/26 ,  G06V40/13

Abstract: An optical construction includes a reflective polarizer and an optical film. The optical film includes a matrix and a plurality of first particles dispersed in the matrix. Each of the matrix and the plurality of first particles includes a silicone polyoxamide and an acrylate polymer. For substantially normally incident light and for at least a first wavelength in a first wavelength range, the reflective polarizer reflects about 60% for a first polarization state and transmits about 40% for an orthogonal second polarization state. For at least a second wavelength in a second wavelength range, each of the reflective polarizer and the optical film transmits about 60% of an incident light for each of the first and second polarization states. For at least the first wavelength, optical film has an optical haze and a depolarization ratio. A ratio of the depolarization ratio to the optical haze is less than 0.1.

公开(公告)号：US12210241B2

公开(公告)日：2025-01-28

申请号：US18381412

申请日：2023-10-18

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Gilles J. Benoit ,  Carl A. Stover ,  Matthew B. Johnson ,  Ryan T. Fabick ,  Quinn D. Sanford

IPC: G02F1/1335 ,  G02F1/13357

Abstract: An optical stack for reflecting and transmitting light in a predetermined wavelength range includes stacked first and second optical films, the predetermined wavelength range defining a first wavelength range and a remaining wavelength range. For normally incident light and for each wavelength in a first wavelength range, the first optical film substantially reflects light having a first polarization state, and substantially transmits light having a second polarization state. For each of the first and second polarization states, for wavelengths in the first wavelength range, the second optical film 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, where the second incident angle is greater than the first incident angle by less than about 50 degrees. For wavelengths in the remaining wavelength range, the second optical film reflects at least 80% of light.

公开(公告)号：US20250020837A1

公开(公告)日：2025-01-16

申请号：US18895687

申请日：2024-09-25

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Adam D. Haag ,  Gilles J. Benoit ,  Stephen A. Johnson ,  Samuel A. Minno ,  Quinn D. Sanford ,  Lin Zhao ,  Robert D. Taylor

IPC: G02B5/08 ,  F21V8/00 ,  G02B5/30 ,  G02B27/28 ,  G02F1/13357

Abstract: A multilayer partial mirror includes a plurality of alternating first a second polymeric layers numbering at least 50 in total, disposed between, and integrally formed with, opposing first and second polymeric skin layers. For a visible wavelength range extending from about 420 nm to about 680 nm and an incident light propagating in an incident plane that includes a x-direction, and for an s-polarized incident light, the multilayer partial mirror has an average reflectance Rs1 for a first incident angle of less than about 10 degrees, and an average reflectance Rs2 for a second incident angle of greater than about 45 degrees, and for a p-polarized incident light, the multilayer partial mirror has an average reflectance Rp1 for the first incident angle, and an average reflectance Rp2 for the second incident angle. Each of Rs2/Rs1 and Rp2/Rp1 is greater than about 1.15.

公开(公告)号：US12153245B2

公开(公告)日：2024-11-26

申请号：US18025988

申请日：2020-09-18

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Zhe Hu ,  Mingxing Wang ,  Tuhua Chen ,  Zhiping Liu ,  Yang Liu ,  Xiulong Men ,  Hailiang Hou ,  Huijie Xie ,  Yifei Zheng ,  Feng Zhao ,  Jingfei Chen ,  Bharat R. Acharya ,  Quinn D. Sanford ,  Matthew S. Cole ,  Tao Zhang

IPC: G06V40/13 ,  F21V8/00 ,  G02B27/14 ,  G02F1/1333

Abstract: An optical construction (100) includes a lightguide (102), a transmissive reflector (112), and an optical sensor (114). The lightguide (102) includes a first major surface (104) and a second major surface (106) opposite to the first major surface (104). The first major surface (104) includes a first portion (108) and an adjoining second portion (110). The transmissive reflector (112) is disposed adjacent to the first major surface (104) of the lightguide (102). The optical sensor (114) is disposed adjacent to the transmissive reflector (112) opposite to the lightguide (102). The optical sensor (114) is aligned with the first portion (108) of the first major surface (104) of the lightguide (102), such that the optical sensor (114) receives at least a portion of light passing through the first portion (108) of the first major surface (104) and transmitted by the transmissive reflector (112). The optical construction (100) further includes an enclosed gap (116) disposed between the first portion (108) of the first major surface (104) of the lightguide (102) and the transmissive reflector (112).