Optical sheet for use in an edge light type backlight unit

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United States of America Patent

PATENT NO 9507075
APP PUB NO 20070053080A1
SERIAL NO

11511771

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Abstract

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A substrate film for an optical sheet is made of a transparent resin and is formed into a rectangular shape. The substrate film for the optical sheet has an optical anisotropy and has an absolute value of the angle of the crystal orientation with respect to the short side orientation which is π/16 or greater and 3π/16 or less.

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Patent Owner(s)

  • KEIWA INC.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Harada, Kenichi Gobo, JP 71 466

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