公开(公告)号：US20210341660A1

公开(公告)日：2021-11-04

申请号：US17305867

申请日：2021-07-16

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Timothy J. Nevitt ,  Carl A. Stover ,  Gilles J. Benoit ,  Kristopher J. Derks ,  Zhaohui Yang

IPC: G02B5/30 ,  B32B7/023 ,  B29D11/00 ,  B32B27/08 ,  B32B27/36

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).

公开(公告)号：US20210053320A1

公开(公告)日：2021-02-25

申请号：US16967906

申请日：2019-02-19

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Derek W. Patzman ,  Kristopher J. Derks ,  Stephen A. Johnson ,  Gary E. Gaides

IPC: B32B25/08 ,  G02B1/14 ,  G02B5/20 ,  C08L23/12 ,  B32B7/06 ,  B32B7/12 ,  B32B27/36 ,  B32B27/08 ,  B32B27/32 ,  B32B25/14

Abstract: Optical films are disclosed. In particular, optical films including a layer of polycarbonate having first and second major surfaces are described. The optical films have excellent bending lifetime properties and also low haze, thinness, and low in-plane and out-of-plane retardation.

公开(公告)号：US20210048571A1

公开(公告)日：2021-02-18

申请号：US17089417

申请日：2020-11-04

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Carl A. Stover ,  Kristopher J. Derks ,  Timothy J. Nevitt ,  Gilles J. Benoit

IPC: G02B5/30 ,  B29D11/00 ,  G02B27/28 ,  B32B17/06 ,  G02F1/1335

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.

公开(公告)号：US10859741B2

公开(公告)日：2020-12-08

申请号：US16745427

申请日：2020-01-17

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Carl A. Stover ,  Kristopher J. Derks ,  Timothy J. Nevitt ,  Gilles J. Benoit

IPC: G02B5/30 ,  B29D11/00 ,  G02B27/28 ,  B32B17/06 ,  G02F1/1335 ,  G02F1/13357 ,  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.

公开(公告)号：US20180348418A1

公开(公告)日：2018-12-06

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 ,  G02F1/1335 ,  B29D11/00 ,  B32B17/06

CPC classification number: G02B5/3041 ,  B29D11/00644 ,  B29D11/0073 ,  B29L2031/3475 ,  B32B17/064 ,  B32B2307/42 ,  B32B2457/202 ,  G02B5/3033 ,  G02B5/3083 ,  G02B27/28 ,  G02F1/133536 ,  G02F1/133606 ,  G02F1/13362

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.

公开(公告)号：US20230358934A1

公开(公告)日：2023-11-09

申请号：US18245290

申请日：2021-09-09

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Carl A. Stover ,  Kristopher J. Derks ,  Benjamin J. Forsythe ,  Stephen A. Johnson ,  Derek W. Patzman ,  David T. Yust ,  Steven H. Kong

IPC: G02B5/28 ,  G02B5/02

CPC classification number: G02B5/287 ,  G02B5/0242 ,  G02B5/3083

Abstract: An integral multilayer optical film includes a plurality of interference layers; a structured layer disposed on the interference layers and including a plurality of particles dispersed in a binder; and a barrier layer disposed between the structured layer and the interference layers and co-extruded with the interference layers and the structured layer. The structured layer has a first major surface facing away from the interference layers and a second major surface facing the interference layers. The barrier layer causes the particles to impart a greater surface roughness to the first major surface than the second major surface so that when the optical film is illuminated with a light source, the optical film has a first average effective transmission T1 when the first major surface faces the light source and a second average effective transmission T2 when the first major surface faces away from the light source, where T1-T2≥5%.

公开(公告)号：US11683977B2

公开(公告)日：2023-06-20

申请号：US15733110

申请日：2018-11-19

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Stephen A. Johnson ,  Derek W. Patzman ,  Richard Y. Liu ,  John F. Van Derlofske, III ,  Kristopher J. Derks ,  Victor Ho ,  Kevin T. Huseby

IPC: H10K77/10 ,  B32B27/36 ,  G06F3/041 ,  B32B27/08 ,  H10K50/00 ,  B32B7/023

CPC classification number: H10K77/111 ,  B32B27/08 ,  B32B27/36 ,  G06F3/041 ,  H10K50/00 ,  B32B7/023 ,  B32B2250/03 ,  B32B2250/244 ,  B32B2307/412 ,  B32B2307/418 ,  B32B2307/42 ,  B32B2307/518 ,  B32B2307/54 ,  B32B2367/00 ,  B32B2457/202 ,  B32B2457/206 ,  B32B2457/208 ,  G06F3/0412 ,  G06F2203/04103 ,  Y02E10/549 ,  Y10T428/31786

Abstract: A substrate including a self-supporting tri-layer stack is described. The tri-layer stack includes first and second outer layers and a biaxially oriented layer disposed between and in direct contact with the first and second outer layers. The biaxially oriented layer may include a first polyester having greater than 45 mole percent naphthalate units and greater than 45 mole percent ethylene units. Each of the first and second outer layers includes a second polyester which may include 40 to 50 mole percent naphthalate units, at least 25 mole percent ethylene units, and 10 to 25 mole percent of branched or cyclic C4-C10 alkyl units.

公开(公告)号：US11520093B2

公开(公告)日：2022-12-06

申请号：US17215625

申请日：2021-03-29

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Carl A. Stover ,  Kristopher J. Derks

IPC: G02B5/30 ,  G02B27/28 ,  G02F1/1335

Abstract: A polarizer stack including an absorbing polarizer and a multilayer polymeric reflective polarizer bonded together is described. The absorbing polarizer has a first block axis and the reflective polarizer has a second block axis substantially parallel to the first block axis. The reflective polarizer may be substantially free of micro-wrinkling when the polarizer stack adhered to a glass layer is heated at 95° C. for 100 hours.

公开(公告)号：US20200156355A1

公开(公告)日：2020-05-21

申请号：US16630132

申请日：2018-08-08

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Stephen A. Johnson ,  Derek W. Patzman ,  Richard Yufeng Liu ,  Victor Ho ,  Timothy J. Hebrink ,  Kevin T. Huseby ,  John F. VanDerlofske, III ,  John P. Purcell ,  William T. Fay ,  James B. Svacha ,  Richard J. Thompson ,  Timothy J. Lindquist ,  Kristopher J. Derks

IPC: B32B27/08 ,  B32B7/02

Abstract: Multi-layer films, and processes to make the films, that enable the delivery of a substrate featuring a peelable thin layer of low haze, amorphous, isotropic film with the desired properties of high modulus, high usage temperature, UV blockage, and toughness The films are made using a co-extrusion, co-orientation and annealing process to enable the delivery of a thin isotropic, UV blocking layer on top of a release layer and support substrate. These film constructions can be kept together during additional processing steps such as coating and converting. The release and dimensionally stable substrate layer can be easily removed once processing steps are completed.

公开(公告)号：US20200150329A1

公开(公告)日：2020-05-14

申请号：US16745427

申请日：2020-01-17

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Carl A. Stover ,  Kristopher J. Derks ,  Timothy J. Nevitt ,  Gilles J. Benoit

IPC: G02B5/30 ,  G02B27/28 ,  G02F1/1335 ,  B32B17/06 ,  B29D11/00

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.