Optical article and method of making

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 7604381
APP PUB NO 20080252980A1
SERIAL NO

11735684

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Disclosed herein is an optical article having a top layer with a structured surface that collimates light, a core layer secured to the top layer opposite the structured surface, and a bottom layer secured to the core layer opposite the top layer. Either the top layer or the core layer includes a first extrudable polymer having a flexural modulus of greater than 2.5 GPa, and the other layer includes a second extrudable polymer having a flexural modulus of 2.5 GPa or less, an impact strength of greater than about 40 J/m, and tensile elongation at break of greater than about 5%. The bottom layer includes a third extrudable polymer. The bottom layer of the optical article may be structured to diffuse light. One or two optical articles may be secured to an optical film such as a polarizer film. Methods and display devices are also disclosed herein.

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Patent Owner(s)

  • 3M INNOVATIVE PROPERTIES COMPANY

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bay, Randy S Woodbury , US 20 171
Clarke, Graham M Woodbury , US 36 727
Collier, Terry O Woodbury , US 30 397
Hebrink, Timothy J Scandia , US 159 2766
Jonza, James M Woodbury , US 81 4823
Lucking, Raymond L Hastings , US 10 326
Yu, Ta-Hua Woodbury , US 73 650

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