Light control film with turning film and lenticular diffuser for view enhancement in the horizontal plane

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11099314
APP PUB NO 20190339438A1
SERIAL NO

16475327

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Optical system including a lightguide; a turning film, including a first smooth surface perpendicular to a display axis and a first structured surface including a plurality of first microstructures defining a first plurality of parallel grooves, where the turning film is optically coupled to the lightguide, where the turning film outputs light collimated in a first plane parallel to the display axis; and a lenticular diffuser, including a second smooth surface perpendicular to the display axis and a second structured surface comprising a plurality of second microstructures defining a second plurality of parallel grooves extending along a plane perpendicular to the display axis, where the lenticular diffuser is optically coupled to the turning film, where the lenticular diffuser reflects or refracts collimated light toward a second plane perpendicular to the first plane; where the first plurality of parallel grooves is perpendicular to the second plurality of parallel grooves.

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Patent Owner(s)

  • 3M INNOVATIVE PROPERTIES COMPANY

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Emmons, Robert M St. Paul, US 35 1890
Epstein, Kenneth A St. Paul, US 110 3905
Johnson, Nicholas A Burnsville, US 55 114

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