公开(公告)号：US20230350119A1

公开(公告)日：2023-11-02

申请号：US17780581

申请日：2020-12-08

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Takashi Fujita ,  Hideaki Shirotori ,  Chikara Abe ,  Matthew B. Johnson ,  Brianna N. Wheeler ,  Adam D. Haag

IPC: G02B5/30

CPC classification number: G02B5/305

Abstract: An optical stack includes a reflective polarizer including a plurality of interference layers and an absorbing polarizer disposed on the reflective polarizer. The plurality of interference layers transmits at least about 85% of an incident light having a first polarization state, reflects at least about 80% of the incident light having a second polarization state, and transmits less than about 0.1% of the incident light having the second polarization state. The absorbing polarizer has a first transmittance for the first polarization state and a second transmittance for the second polarization state. An average of the first and second transmittances is greater than about 0.46. The second transmittance has a first standard deviation. The optical stack has a transmittance for the second polarization state having a second standard deviation which is less than the first standard deviation by at least about 10%. A display includes the optical stack.

公开(公告)号：US20170371083A1

公开(公告)日：2017-12-28

申请号：US15541280

申请日：2015-12-29

Applicant: 3M Innovative Properties Company ,  Nitto Denko Corporation

Inventor： Matthew B. Johnson ,  Chikara Abe ,  Hiroaki Sawada ,  Minoru Miyatake

IPC: G02B5/30 ,  G02F1/1335

CPC classification number: G02B5/3041 ,  G02B5/3083 ,  G02F1/133536

Abstract: Optical stacks are disclosed. In particular, optical stacks having a reflective polarizer and an optical compensation film are disclosed.

公开(公告)号：US20170307786A1

公开(公告)日：2017-10-26

申请号：US15528796

申请日：2015-12-01

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Naota Sugiyama ,  Chikara Abe ,  Richard J. Pokorny ,  Kristy A. Gillette

IPC: G02B1/14 ,  C09D4/00 ,  C09D7/12 ,  G02B5/30 ,  G02F1/1335 ,  C08K9/04 ,  C08K3/36

CPC classification number: G02B1/14 ,  C08K3/22 ,  C08K3/36 ,  C08K9/04 ,  C08K2201/003 ,  C08K2201/011 ,  C09D4/00 ,  C09D7/62 ,  C09D7/67 ,  G02B5/30 ,  G02B5/3041 ,  G02B5/3066 ,  G02F1/133536

Abstract: Article comprising a reflective polarizer having a first major surface, and an exposed hardcoat on the first major surface, the hardcoat comprising binder, wherein the hardcoat has a thickness less than 500 nanometers and has a scratch rating of not greater than 1 as determined by the Linear Abrasion Test in the Examples. Articles described herein are useful, for example, for applications benefiting from reflective polarizers having brightness enhancement properties (e.g., use with liquid crystal display (LCD) devices).

公开(公告)号：US10895676B2

公开(公告)日：2021-01-19

申请号：US15541280

申请日：2015-12-29

Applicant: 3M Innovative Properties Company ,  Nitto Denko Corporation

Inventor： Matthew B. Johnson ,  Chikara Abe ,  Hiroaki Sawada ,  Minoru Miyatake

IPC: G02B5/30 ,  G02F1/1335

Abstract: An optical stack includes a liquid crystal panel with a color filter array. The liquid crystal panel has a filter side closest to the color filter array and a non-filter side opposite the filter side. An absorbing polarizer is laminated directly to the filter side of the liquid crystal panel, and a reflective polarizer laminated directly to the absorbing polarizer.