Title:
POLARIZER PROTECTIVE FILM, POLARIZING PLATE, AND LIQUID CRYSTAL DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/054406
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a polarizer protective film, a polarizing plate, and a liquid crystal display device which are capable of suppressing warpage of a liquid crystal panel. This polarizer protective polyester film is laminated on one surface of a polarizer, and satisfies conditions (1) and (2) below. (1) In a direction parallel to the transmission axis of the polarizer, the contractile force Ff of the polyester film is 800-9000 N/m, and (2) a ratio (Ff/Fv) of the contractile force Ff of the polyester film in the direction parallel to the transmission axis of the polarizer to the contractile force Fv of the polyester film in a direction parallel to the absorption axis of the polarizer is 2.5 to 12.0.
Inventors:
NAKASE KATSUKI (JP)
FUJITA ATSUSHI (JP)
MURATA KOUICHI (JP)
SASAKI YASUSHI (JP)
FUJITA ATSUSHI (JP)
MURATA KOUICHI (JP)
SASAKI YASUSHI (JP)
Application Number:
PCT/JP2018/033793
Publication Date:
March 21, 2019
Filing Date:
September 12, 2018
Export Citation:
Assignee:
TOYO BOSEKI (JP)
International Classes:
G02B5/30; B29C55/06; B32B27/36; C08J5/18; G02F1/1335; B29K67/00; B29L7/00; B29L11/00
Domestic Patent References:
| WO2015190190A1 | 2015-12-17 |
Foreign References:
| JP2001098089A | 2001-04-10 | |||
| JP2014219438A | 2014-11-20 |
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