公开(公告)号：WO2022238781A1

公开(公告)日：2022-11-17

申请号：PCT/IB2022/053553

申请日：2022-04-14

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： LIU, Tao ,  FAN, Shu-Ching ,  BOYD, Gary T. ,  THOMPSON, David Scott ,  NELSON, Caleb T. ,  PHAM, Tri D. ,  RINGBERG, Adam T. ,  SCHMIDT, Daniel J. ,  ANDERSON, Owen M.

IPC: G02B3/08 ,  G02B5/02 ,  G02B2207/123

Abstract: An optical system includes an optical film curved about a first axis and a light control film curved about the first axis and substantially coextensive with the optical film. The optical film includes a first layer including a microstructured first major surface where the microstructured first major surface defines a linear Fresnel lens including a plurality of Fresnel elements extending along the first axis. The first major surface of the optical film faces the light control film. The light control film includes a plurality of spaced apart optically absorptive regions extending along the first axis and along a direction substantially normal to a major surface of the light control film. At least one of the optical film or at least one layer disposed between the optical film and the light control film includes at least one reflection mitigation element.

公开(公告)号：WO2021124026A1

公开(公告)日：2021-06-24

申请号：PCT/IB2020/061704

申请日：2020-12-09

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： JONES, Vivan W. ,  GAIDES, Gary E. ,  JOHNSON, Stephen A. ,  LEHN, Nathaniel I. ,  MA, Jiaying ,  RINGBERG, Adam T. ,  WU, Tianyu ,  LI, Fuming B.

IPC: H01L31/05 ,  H01L31/054 ,  G02B5/08

Abstract: A light redirecting film includes a first layer disposed on a second layer with structured major surfaces of the first and second layers facing each other. An optically reflective layer or a metal layer is disposed between the first and second layers. The first layer can be a hot melt adhesive layer and the second layer can be a polymeric layer. The first and second layers can be unitary layers. The first layer can be a first polymeric layer having a softening temperature T1 and the second layer can be a second polymeric layer having a softening temperature T2 greater than T1. Heating and/or applying pressure to the film changes an optical characteristic of the film by less than about 5%.

公开(公告)号：WO2022101721A1

公开(公告)日：2022-05-19

申请号：PCT/IB2021/059689

申请日：2021-10-20

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： RINGBERG, Adam T. ,  JONES, Vivian W. ,  PHIPPS, James A. ,  PHAM, Tri D. ,  MARKOWICZ, Przemyslaw P. ,  ROEHRIG, Mark A. ,  MAKI, Stephen P. ,  HAO, Bing ,  ROWE, David J. ,  MOLLENHAUER, Serena L. ,  BELKIN, Mikhail A. ,  YANG, Zhaohui ,  EDWARDS, Jathan D.

IPC: G02B5/00 ,  G02B3/00

Abstract: An optical construction includes a lens layer and optically opaque first and second mask layers. The lens layer has a first major surface including a plurality of microlenses arranged along orthogonal first and second directions. The first and second mask layers are spaced apart from the first major surface and define respective pluralities of through first and second openings therein arranged along the first and second directions. The first mask layer is disposed between the structured first major surface and the second mask layer. There is a one-to-one correspondence between the microlenses and the first and second openings. The optical construction includes an intermediate layer disposed between the structured first major surface and the first mask layer and including an undulating second major surface facing, and in substantial registration with, an undulating third major surface of first mask layer so as to define a substantially uniform spacing therebetween.

公开(公告)号：WO2021074861A1

公开(公告)日：2021-04-22

申请号：PCT/IB2020/059730

申请日：2020-10-15

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： YANG, Zhaohui ,  STAY, Matthew S. ,  SMITH, Matthew R. D. ,  PHAM, Tri D. ,  RINGBERG, Adam T. ,  SCHLEUSNER, Serena L.

IPC: G02B3/00 ,  G02F1/1335 ,  H01L25/075 ,  H01L51/52 ,  G02B5/00 ,  G02B5/20

Abstract: An optical system is disclosed and includes an optical sensor configured to receive light and form an image. The optical system further includes a microlens film including a structured first major surface opposite a second major surface, the structured first major surface includes a regular array of spaced apart microlenses arranged across a width and a length of the microlens film and each microlens has an effective imaging area and configured to form an image onto the optical sensor. A light absorbing layer is disposed on the array of spaced apart microlenses and reduces the effective imaging area of each microlens by at least 10%. A display panel, the optical sensor, the microlens film and the display plane are substantially co-extensive with each other along the width and length of the microlens film.