3m Innovative Properties Company

Joseph W Woody, V

David Scott Thompson

Steven D Solomonson

Mikhail L Pekurovsky

Catherine A Leatherdale

Matthew S Stay

Joseph D Rule

Michael A Johnson

Kevin R Schaffer

Zhaohui Yang

Peter D Condo

John James Stradinger

Ryan M Braun

John Allen Wheatley

Audrey A Sherman

Michael Alan Meis

Raymond Patrick Johnston

Robert L Brott

Patrick R Fleming

Vivian Wynne Jones

Shawn C Dodds

Karl J L Geisler

Charles N DeVore

Lyudmila A Pekurovsky

Kayla A Hagens

Steven G Lucht

Donald J Mcclure

A display film includes a transparent glass layer having a thickness of 250 micrometers or less, or in a range from 25 to 100 micrometers. A transparent energy dissipation layer is fixed to the transparent glass layer. The transparent energy dissipation layer has a glass transition temperature of 27 degrees Celsius or less, a Tan Delta peak value of 0.5 or greater, or from 1 to 2 and a Young's Modulus (E') greater than 0.9 MPa over a temperature range of &#x2212;40 degrees Celsius to 70 degrees Celsius. In a preferred embodiment, the transparent energy dissipation layer comprises a cross-linked polyurethane layer or a cross-linked polyurethane acrylate layer.

Protective display film with glass

A display film comprises a transparent glass layer including two or more co-planar glass layer segments and a thickness defined by a first major surface and a second major surface opposing the first major surface being less than 500 micrometers; interstitial polymer material separating adjacent segments; and transparent energy dissipation layer having a glass transition temperature of 27 degrees Celsius or less and a Tan Delta peak value of 0.5 or greater and being disposed on the first major surface.

Segmented protective display film

Variable index light extraction layers that contain a first region with a first material and a second region including a second material are described, where the first region has a lower effective index of refraction than the second region. Optical films and stacks may use the variable index light extraction layers in front lit or back lit display devices and luminaires.

Variable index light extraction layer and method of making the same

A lightguide functioning as a luminaire. The luminaire includes at least one solid state light source, such as an LED, and a lightguide configured to receive light from the solid state light source. Light from the light source is coupled into the lightguide and transported within it by total internal reflection until the light exits the lightguide. A shape of the lightguide causes and directs extraction of the light, and can also be used to create a particular pattern of the extracted light. Such shapes include linear wedges and twisted wedges. Optical films can be included on the light input and output surfaces of the lightguide.

Lightguide as luminaire

Variable index light extraction layers () that contain a plurality of microreplicated posts () are described. The variable index light extraction layers contain a plurality of microreplicated posts (), a first region including a first lower-index substance () and a second region including a second higher-index substance (). Optical films can use the variable index light extraction layers () in front lit or back lit display devices.

Variable index light extraction layer with microreplicated posts and methods of making the same

Growing community of inventors

Saint Paul, MN, United States of America

Joseph W Woody, V