3m Innovative Properties Company

3m Innovation Properties Company

Matthew S Cole

Matthew D Chaffee

Jessica L Staude

Bharat R Acharya

Quinn D Sanford

William Blake Kolb

Gilles J Benoit

Carl A Stover

Matthew S Stay

Tri Dinh Pham

David T Yust

Robert D Taylor

Anthony M Renstrom

Jeremy O Swanson

Matthew E Sousa

Matthew R D Smith

Tao Zhang

Ann M Gilman

Jason S Petaja

Lin Zhao

David A Rosen

Benjamin J Forsythe

Joseph P Attard

Kayo M Roehm

Feng Zhao

Peter Ehling

Guo Chen

David C Raithel

Paul N Daveloose

Lisa A DeNicola

Qunyi Chen

Huijie Xie

Stewart H Corn

Ibrahim S Gunes

Jingfei Chen

Daniel A Streng

David Yoon

Mark D Weiser

RichardLouie A Reyes

Zhe Hu

Windy A Santa Cruz

Dariusz Piech

Dennard J Powell

Daniel A Schaumann

Zhiping Liu

Matthew Rd Smith

Mingxing Wang

Irem Bolukbasi

Hailiang Hou

Xiulong Men

Yang Liu

Tuhua Chen

Matthew R Smith

Yifei Zheng

A display system for sensing a finger of a user applied to the display system includes a display panel; a sensor for sensing the finger; a sensing light source configured to emit a first light having a first wavelength W1; and a reflective polarizer disposed between the display panel and the sensor. For a substantially normally incident light, an optical transmittance of the reflective polarizer versus wavelength for a first polarization state has a band edge such that for a first wavelength range extending from a smaller wavelength L1 to a greater wavelength L2 and including W1, where 30 nm≤L2−L1≤50 nm and L1 is greater than and within about 20 nm of a wavelength L3 corresponding to an optical transmittance of about 50% along the band edge, the optical transmittance has an average of greater than about 75%.

Display system with finger sensing

An optical construction () includes a lightguide (), a transmissive reflector (), and an optical sensor (). The lightguide () includes a first major surface () and a second major surface () opposite to the first major surface (). The first major surface () includes a first portion () and an adjoining second portion (). The transmissive reflector () is disposed adjacent to the first major surface () of the lightguide (). The optical sensor () is disposed adjacent to the transmissive reflector () opposite to the lightguide (). The optical sensor () is aligned with the first portion () of the first major surface () of the lightguide (), such that the optical sensor () receives at least a portion of light passing through the first portion () of the first major surface () and transmitted by the transmissive reflector (). The optical construction () further includes an enclosed gap () disposed between the first portion () of the first major surface () of the lightguide () and the transmissive reflector ().

Optical construction

A display system for sensing a finger of a user applied to the display system includes a display panel; a sensor for sensing the finger; a sensing light source configured to emit a first light having a first wavelength W; and a reflective polarizer disposed between the display panel and the sensor. For a substantially normally incident light, an optical transmittance of the reflective polarizer versus wavelength for a first polarization state has a band edge such that for a first wavelength range extending from a smaller wavelength Lto a greater wavelength Land including W, where 30 nm≤L−L≤50 nm and Lis greater than and within about 20 nm of a wavelength Lcorresponding to an optical transmittance of about 50% along the band edge, the optical transmittance has an average of greater than about 75%.

An optical construction includes a reflective polarizer and an optically diffusive film disposed on the reflective polarizer. The reflective polarizer includes an outer layer including a plurality of first particles partially protruding from a first major surface thereof to form a structured major surface. A first optically diffusive layer is conformably disposed on the structured major surface. The optically diffusive film includes a second optically diffusive layer including a plurality of nanoparticles dispersed therein, and a structured layer including a structured major surface. For a substantially normally incident light and a visible wavelength range from about 450 nm to about 650 nm and an infrared wavelength range from about 930 nm to about 970 nm, the second optically diffusive layer has an average specular transmittance Vs in the visible wavelength range and an average specular transmittance Is in the infrared wavelength range, where Is/Vs≥2.5.

Optical construction and display system

A scrubbing article including a substrate, a stain release coating and a texture layer. The stain release coating is applied to the substrate and is present over a at least a major surface of the substrate, and the texture layer is formed over the stain release coating opposite the substrate. In some embodiments, the texture layer is printed on to the stain release coating. The substrate can assume various forms, such as nonwoven, fabric (e.g., woven or knitted), foam, film and sponge material or combinations thereof.

Consumer scrubbing article with stain release and method of making same

Cleaning article

Growing community of inventors

Eagan, MN, United States of America

Matthew S Cole