3M Innovative Properties Company

Other

St. Jude Medical, Inc.

Michelle Lund Toy

Thomas P Klun

Richard John Pokorny

Adam D Haag

Matthew B Johnson

Christopher Bland Walker, Jr

Joan M Noyola

Kristy A Gillette

David B Olson

Mahfuza B Ali

Evan L Schwartz

Daniel R Cremons

William Blake Kolb

Michael A Johnson

David T Yust

Seong Taek Lee

Brianna N Wheeler

Brianna N Nieson

Audrey A Sherman

Albert I Everaerts

Hiroki Matsuda

Kyle J Lindstrom

Robert A Yapel

Yi-Chen Chen

John P Baetzold

Tri Dinh Pham

Scott Melvyn Tapio

Steven D Solomonson

John James Stradinger

Robert F Kamrath

Steven H Kong

Roger W Barton

Elisa M Cross

Anthony M Renstrom

Taun L McKenzie

Mitchell A F Johnson

Karissa L Eckert

Quinn D Sanford

Craig R Sykora

Jason S Petaja

Joseph T Aronson

Jonah Shaver

Thomas M Snyder

Avrom M Brendzel

Guy M Kallman

Joseph P Attard

John F VanDerlofske, Iii

Eileen M Franey

Patrick E Bisek

David J McDaniel

Tze Yuan Wang

Ryan J Eismin

Christopher P Tebow

Michael K Gerlach

Richard Rodriguez

Carley A Haroldson

John F Iii Vanderlofske

David J Mcdaniel

An optical film includes a plurality of alternating first and second polymeric layers, such that the first polymeric layers have a smaller average in-plane index of refraction than the second polymeric layers and the first polymeric layers have a glass transition temperature of at least 107 deg. C. The optical film may be a reflective polarizer. An optical stack includes a linear absorbing polarizer and the reflective polarizer disposed on, and bonded to, the absorbing polarizer. The reflective polarizer has an optical reflectance of at least 60% for a first polarization state and an optical transmittance of at least 60% for an orthogonal second polarization state. When heated at 105 deg. C. for 15 minutes, a difference in shrinkage of the reflective polarizer and the absorbing polarizer along the first and second polarization states is greater than about zero and 0.2%, respectively.

Optical film and optical stack

A film stack includes co-stretched first and second layers. The first layer is stained with iodine and has a glass transition temperature of at least 5° C. greater than a glass transition temperature of the second layer. The second layer has in-plane birefringence of less than 0.02 and a retardance of less than 100 nm.

Film stacks for thin circular polarizers

An optical stack includes an optical film () and an optical adhesive () disposed on the optical film. The optical adhesive has a major structured surface facing away from the optical film that includes a plurality of channels formed therein. The channels define a plurality of substantially flat land regions therebetween. The land regions include at least about 50% of a total surface area of the major structured surface. When the optical stack is placed on a support surface with the major structured surface of the optical adhesive contacting the support surface, the optical stack bonds to the support surface and may be removed from, or slidingly repositioned on, the support surface without damage to the optical adhesive or the support surface, and upon application of at least one of heat and pressure, the optical stack substantially permanently bonds to the support surface and the plurality of channels substantially disappear.

Optical stack

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.'

Optical body including multilayer optical film and thin adhesive layer

A film stack includes an oriented first layer including polyvinyl alcohol disposed on an oriented second layer including naphthalene dicarboxylate containing copolyester resin. The oriented second layer has in-plane birefringence Δnxy<0.02.

A backlight includes an extended light source adapted to emit light. A reflective polarizer is disposed on the extended light source, such that for substantially normally incident light and for at least a first wavelength in a range from about 420 nanometer (nm) to about 650 nm, the reflective polarizer reflects at least 60% of the incident light having a first polarization state and transmits at least 60% of the incident light having an orthogonal second polarization state. A first prismatic film is disposed between the extended light source and the reflective polarizer. A retarder layer is disposed between the reflective polarizer and the first prismatic film, such that for substantially normally incident light at a wavelength of about 550 nm, the retarder layer has a retardance nW, where n is an integer ≥1 and W is a wavelength between about 160 nm and about 300 nm.

Backlight for display

Optical stacks are described. In particular, optical stacks including reflecting-absorbing polarizers and quarter-wave plates are disclosed. The optical core of the optical stack&#x2014;which includes a reflecting-absorbing polarizer with at least one skin layer including polarizing dye&#x2014;may be co-extruded or co-stretched.

Optical stack including reflective polarizer and quarter-wave plate on skin layer of absorbing polarizer

Optical stack including reflecting-absorbing polarizer

The present invention relates to protection films comprising an optical film suitably sized for an illuminated display device, the optical film having perimeter surface portions defining a central region. The protection film further comprises a pressure sensitive adhesive layer at the perimeter surface portions of the optical film. The optical film and/or pressure sensitive adhesive layer has been adapted such that the at least the central region of the optical film contacts the illuminated display device or the central region of the optical film is bonded to the illuminated display device by means of a self-wetting layer. The protection film may be preassembled or may be provided as a kit, the kit comprising an optical film and a double-faced pressure sensitive tape.

Protection film suitable for illuminated display devices

Additives comprising a low surface energy group and one or more hydroxyl groups are described.

Additive comprising low surface energy group and hydroxyl groups and coating compositions

A coating composition is described comprising a polymerizable resin composition, a non-ionic unpolymerizable surfactant having an hydrophilic lipophilic balance ranging from 2 to 6, and a polymerizable surfactant. The surfactants are present at a concentration of greater than 10 wt-% solids. The non-ionic unpolymerizable surfactant and polymerizable surfactant are present at a weight ratio of less than 1.5:1. Also described are articles comprising the cured coating composition. The cured coating exhibits a property of an initially visible simulated fingerprint reducing in visibility within 60 minutes.

Coating compositions comprising polymerizable non-ionic surfactant exhibiting reduced fingerprint visibility

Coating compositions are described comprising a non-ionic surfactant and an additive wherein the additive comprises a low surface energy group and one or more hydroxyl groups. The cured coating can exhibit reduced fingerprint visibility and low cellulose surface attraction. Also described are copolymer compositions useful as additives.

The present invention concerns antireflective films comprising a high refractive index layer () and low refractive index layer () disposed on the high refractive index layer. The antireflective films have a microstructured surface () that can be derived from a microreplicated tool.

Antireflective films comprising microstructured surface

Presently described are coating compositions comprising a polymerizable resin composition and a non-ionic unpolymerizable surfactant. In some embodiments, the coating comprises greater than 10 wt-% of non-ionic unpolymerizable surfactant. In other embodiments, the coating composition comprises an an additive comprising a silicone group or a fluorinated group and a hydrophobic group. Also described are articles comprising the cured coating compositions. In one embodiment, an article is described comprising a cured coating wherein the cured coating exhibits a property of an initially visible simulated fingerprint reducing in visibility in 1-20 minutes. Also described is a method of determining the fingerprint visibility of a coating composition and a polyacylate composition useful as an additive. In another embodiment a coated surface is described comprising a polymeric organic material comprising a plurality of pores wherein a portion of the pores are interconnected and comprise a lipophilic liquid.

Coating compositions comprising non-ionic surfactant exhibiting reduced fingerprint visibility

Growing community of inventors

North St. Paul, MN, United States of America

Michelle Lund Toy