Retardation film, circularly-polarizing plate, and image-displaying device

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United States of America Patent

PATENT NO 10670773
APP PUB NO 20170031062A1
SERIAL NO

15294158

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Abstract

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The retardation film of the present invention contains a thermoplastic resin and is constituted of a single layer. A value of wavelength dispersion (R450/R550) that is a ratio of a retardation R450 at a wavelength of 450 nm and a retardation R550 at a wavelength of 550 nm is 0.70 or more and 0.85 or less; and a photoelastic coefficient is 14×10−12 Pa−1 or less.

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Patent Owner(s)

  • NITTO DENKO CORPORATION; MITSUBISHI CHEMICAL CORPORATION

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hayashi, Hiroyuki Kanagawa, JP 232 2112
Hirami, Yuuichi Fukuoka, JP 9 25
Murakami, Nao Osaka, JP 91 858
Namiki, Shingo Fukuoka, JP 22 99
Shimizu, Takashi Osaka, JP 399 2918
Sumimura, Hiroshi Osaka, JP 6 29
Uehara, Hisatoshi Kanagawa, JP 14 30

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