Title:
POLARIZING PLATE, POLARIZING PLATE ROLL, AND METHOD FOR PRODUCING POLARIZING FILM
Document Type and Number:
WIPO Patent Application WO/2019/054268
Kind Code:
A1
Abstract:
Provided is a polarizing plate having excellent optical characteristics and suppressed variation in the optical characteristics. This polarizing plate has: a polarizing film the thickness of which is 8 μｍ or less, the single transmittance is 43.0% or greater, and the polarization degree is 99.980% or greater; and a protective film arranged on at least one side of the polarizing film, wherein the width of the polarizing plate is 1000 mm or greater, and the difference between the maximum value and the minimum value of single transmittance at a position along the width direction is 0.3% or less. Another polarizing plate according to this invention has: a polarizing film the thickness of which is 8 μｍ or less, the single transmittance is 43.0% or greater, and the polarization degree is 99.980% or greater; and a protective film arranged on at least one side of the polarizing film, wherein the difference between the maximum value and the minimum value of single transmittance within a 50 cm2 area of the polarizing plate is 0.2% or less.
Inventors:
GOTO SHUSAKU (JP)
SHIMAZU RYO (JP)
TAKAE KOSUKE (JP)
SHIMAZU RYO (JP)
TAKAE KOSUKE (JP)
Application Number:
PCT/JP2018/033040
Publication Date:
March 21, 2019
Filing Date:
September 06, 2018
Export Citation:
Assignee:
NITTO DENKO CORP (JP)
International Classes:
G02B5/30; B29C55/06; B29L7/00; B29L9/00; B29L11/00
Domestic Patent References:
| WO2017073638A1 | 2017-05-04 | |||
| WO2015137514A1 | 2015-09-17 |
Foreign References:
| JP2015191224A | 2015-11-02 | |||
| JP2017068282A | 2017-04-06 | |||
| JP2009083176A | 2009-04-23 | |||
| JP2016535877A | 2016-11-17 | |||
| JP2003043257A | 2003-02-13 | |||
| JP2006227604A | 2006-08-31 | |||
| JP2017037290A | 2017-02-16 | |||
| JP2006308938A | 2006-11-09 |
Attorney, Agent or Firm:
MOMII Takafumi (JP)
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