Title:
MULTILAYER FILM AND IMAGE DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/204161
Kind Code:
A1
Abstract:
The present invention is a multilayer film which sequentially comprises an adhesive layer, a polarizing film and a luminance improving film in this order, and which is configured such that: the polarizing film has a protective film on at least one surface of a polarizer that contains a polyvinyl alcohol resin; the polarizer has a thickness of 10 μm or less and a single transmittance of 43.0% or more; the luminance improving film has a degree of polarization of 90% or more; and the protective film has a thickness of 25 μm or less and a water vapor permeability of 200 g/(m2·day) or less. A multilayer film according to the present invention is able to improve the white luminance and to suppress the occurrence of display unevenness after a humidification test even in cases where a polarizer having a thickness of 10 μm or less is used.
Inventors:
TAKEDA TETSUROU (JP)
SABAE MISAKI (JP)
YOSHIMURA KAZUYA (JP)
KITAMURA YOSHITSUGU (JP)
SHIMBO FUMIE (JP)
SABAE MISAKI (JP)
YOSHIMURA KAZUYA (JP)
KITAMURA YOSHITSUGU (JP)
SHIMBO FUMIE (JP)
Application Number:
PCT/JP2017/019029
Publication Date:
November 30, 2017
Filing Date:
May 22, 2017
Export Citation:
Assignee:
NITTO DENKO CORP (JP)
International Classes:
G02B5/30; B32B7/02; B32B27/30; G02F1/1335
Domestic Patent References:
| WO2016052540A1 | 2016-04-07 | |||
| WO2015030203A1 | 2015-03-05 |
Foreign References:
| JP2016062032A | 2016-04-25 | |||
| JP2008249901A | 2008-10-16 | |||
| JP5871408B1 | 2016-03-01 | |||
| JP2012073580A | 2012-04-12 | |||
| JP2016085444A | 2016-05-19 |
Attorney, Agent or Firm:
UNIUS PATENT ATTORNEYS OFFICE (JP)
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