Backlight with structured surfaces

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 8588574
APP PUB NO 20080050088A1
SERIAL NO

11928999

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Abstract

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A backlight includes a lightguide, a light source disposed with respect to the lightguide to introduce light into the lightguide and a turning film. Optical structures are formed in one of an output surface and a back surface of the lightguide. The optical structures are arranged to extract light from the lightguide. A back reflector is disposed adjacent the back surface. The optical structures are formed to include a varying pattern arranged to mask non-uniformities in the output of the lightguide.

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Patent Owner(s)

  • 3M INNOVATIVE PROPERTIES COMPANY

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Cobb,, Jr Sanford Lakeland, US 4 16
Epstein, Kenneth A St. Paul, US 110 3893
Gardiner, Mark E Santa Rosa, US 57 2480
Kretman, Wade D Afton, US 23 1393

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