Optical film, optical compensation film, polarizing plate and liquid crystal display

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United States of America Patent

PATENT NO 9097837
SERIAL NO

14482314

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Abstract

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An optical film is provided and has retardations satisfying relations (1) to (3):

description='In-line Formulae' end='lead'0≦Re(550)≦10;  (1)description='In-line Formulae' end='tail'

description='In-line Formulae' end='lead'−25≦Rth(550)≦25;  (2)description='In-line Formulae' end='tail'

description='In-line Formulae' end='lead'anddescription='In-line Formulae' end='tail'

description='In-line Formulae' end='lead'|I|+|II|+|III|+|IV|>0.5 (nm),  (3)description='In-line Formulae' end='tail'

with definitions:

    I=Re(450)−Re(550);II=Re(650)−Re(550);III=Rth(450)−Rth(550); andIV=Rth(650)−Rth(550),wherein Re(450), Re(550) and Re(650) are in-plane retardations measured with lights of wavelength of 450, 550 and 650 nm, respectively; and Rth(450), Rth(550) and Rth(650) are retardations in a thickness direction of the optical film, which are measured with lights of wavelength of 450, 550 and 650 nm, respectively.

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Patent Owner(s)

  • FUJIFILM CORPORATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Nakayama, Hajime Minami-Ashigara, JP 73 588
Takahashi, Yuta Minami-Ashigara, JP 61 193
Toyama, Hirofumi Minami-Ashigara, JP 50 195

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