Title:
POLARIZING PLATE AND LIQUID CRYSTAL DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/276304
Kind Code:
A1
Abstract:
A polarizing plate according to the present invention includes at least an optical film, an adhesive layer, and a polarizer layer, wherein: the optical film contains at least a cycloolefin polymer having a polar group; the half width of the diffraction peak obtained when the surface of the optical film prior to the adhesion of the adhesive layer is irradiated with X-rays at an angle of 0.1 degree is in the range of 4.6 to 5.4 degrees; the adhesive layer contains at least the cured product of polymerizable monomers; and at least 60% by mass of the polymerizable monomers exhibit an energy δD from the dispersion forces between molecules among the Hansen solubility parameters which satisfies the relationship of formula (1). Formula (1): 16.0 MPa0.5 ≤ δD < 17.7 MPa0.5
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Inventors:
HAGIWARA TATSUKI (JP)
TATSUMI HIROKI (JP)
KASAHARA KENZO (JP)
SUGINO MOTOAKI (JP)
TATSUMI HIROKI (JP)
KASAHARA KENZO (JP)
SUGINO MOTOAKI (JP)
Application Number:
PCT/JP2022/011239
Publication Date:
January 05, 2023
Filing Date:
March 14, 2022
Export Citation:
Assignee:
KONICA MINOLTA INC (JP)
International Classes:
G02B5/30; B32B7/023; B32B27/00; B32B27/32; C09J7/22; C09J201/00; G02F1/1335
Domestic Patent References:
| WO2012050019A1 | 2012-04-19 |
Foreign References:
| JP2013234208A | 2013-11-21 | |||
| JP2020116864A | 2020-08-06 | |||
| JP2011095514A | 2011-05-12 | |||
| JP2010072439A | 2010-04-02 |
Attorney, Agent or Firm:
KOYO INTERNATIONAL PATENT FIRM (JP)
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