Title:
POLARIZING FILM
Document Type and Number:
WIPO Patent Application WO/2015/133304
Kind Code:
A1
Abstract:
[Problem] To provide a polarizing film having negligible leakage of blue light in the crossed nicols state. [Solution] Provided is a polarizing film in which an iodine-based pigment is adsorbed onto a matrix that includes PVA, wherein the polarizing film satisfies the relationship M/N ≦ 0.91, where M denotes the ratio (Int310/Int210 of the signal intensity at 310 cm-1 ((Int310) and the signal intensity at 210 cm-1 (Int210) in a section corresponding to ingress by the equivalent of 10% of thickness, into the interior of the film from one surface thereof in the thickness direction, and N denotes the ratio (Int310/Int210 of the signal intensity at 310 cm-1 (Int310) and the signal intensity at 210 cm-1 (Int210) in a section corresponding to ingress by the equivalent of 10% of the thickness, into the interior of the film from the other surface thereof in the thickness direction (M ≦ N), obtained through Raman spectrometry of a cross section of the polarizing film.
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Inventors:
OZONO TATSUYA (JP)
KAZETO OSAMU (JP)
KAZETO OSAMU (JP)
Application Number:
PCT/JP2015/054931
Publication Date:
September 11, 2015
Filing Date:
February 23, 2015
Export Citation:
Assignee:
KURARAY CO (JP)
International Classes:
G02F1/1335; G02B5/30
Domestic Patent References:
| WO2015037553A1 | 2015-03-19 |
Foreign References:
| JP2010276815A | 2010-12-09 | |||
| JP2010271703A | 2010-12-02 | |||
| JP2013182162A | 2013-09-12 | |||
| JP2005037862A | 2005-02-10 | |||
| JP2008040251A | 2008-02-21 | |||
| JP2008298871A | 2008-12-11 | |||
| JPH08240715A | 1996-09-17 | |||
| JP2015505071A | 2015-02-16 |
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