Display laminate with single packet biaxially birefringent reflective polarizer

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United States of America Patent

PATENT NO 10859741
APP PUB NO 20200150329A1
SERIAL NO

16745427

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Multilayer optical film reflective polarizers previously considered to have excessive off-axis color can provide adequate performance in an LC display without any high haze light diffusing layer or air gap between the reflective polarizer and the back absorbing polarizer of the display. The reflective polarizer has only one packet of microlayers, and is oriented using a standard tenter such that birefringent microlayers in the film are biaxially birefringent. The microlayers in the packet have a layer thickness profile suitably tailored to avoid excessive perceived color at normal and oblique angles. A laminate made by combining this type of reflective polarizer with an absorbing polarizer, without an air gap or any high haze light diffusing layer or structure between the polarizers, can be used and incorporated into a liquid crystal display or the like with adequate color performance both at normal incidence and oblique incidence up to a polar angle of 60 degrees.

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Patent Owner(s)

  • 3M INNOVATIVE PROPERTIES COMPANY

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Benoit, Gilles J Minneapolis, US 99 357
Derks, Kristopher J Woodbury, US 51 752
Nevitt, Timothy J Red Wing, US 119 3583
Stover, Carl A St. Paul, US 97 5132

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