Title:
OPTICAL LAMINATE, OPTICAL LAMINATE PRODUCTION METHOD, OPTICAL MEMBER, AND OPTICAL MEMBER PRODUCTION METHOD
Document Type and Number:
WIPO Patent Application WO/2023/189556
Kind Code:
A1
Abstract:
The present invention provides: an optical laminate that enables a reduction in thickness, and that is capable of maintaining excellent optical performance; an optical laminate production method; an optical member; and an optical member production method. An optical laminate according to an embodiment of the present invention comprises: a transparent resin layer that has a thickness of not more than 20 μm; a porous layer that is provided directly to one side of the transparent resin layer in the thickness direction, and that has a refractive index of not more than 1.25; a pressure-sensitive adhesive layer that is provided directly to a surface of the porous layer which is on the opposite side from the transparent resin layer; and an adhesive layer that is provided directly to a surface of the transparent resin layer on the opposite side from the porous layer. The peeling force when peeling the transparent resin layer from the porous layer is not less than 1 N/25 mm.
Inventors:
HATTORI DAISUKE (JP)
MORISHIMA RYOTA (JP)
NAKAMURA MAKOTO (JP)
MORISHIMA RYOTA (JP)
NAKAMURA MAKOTO (JP)
Application Number:
PCT/JP2023/009891
Publication Date:
October 05, 2023
Filing Date:
March 14, 2023
Export Citation:
Assignee:
NITTO DENKO CORP (JP)
International Classes:
G02B1/111; B32B5/18; B32B7/023; C09J7/29; C09J7/38; G02B5/00
Domestic Patent References:
| WO2016104764A1 | 2016-06-30 | |||
| WO2020067344A1 | 2020-04-02 | |||
| WO2017022690A1 | 2017-02-09 | |||
| WO2017033672A1 | 2017-03-02 | |||
| WO2017043496A1 | 2017-03-16 |
Foreign References:
| JP2016104551A | 2016-06-09 | |||
| JP2020064128A | 2020-04-23 | |||
| JP2015200866A | 2015-11-12 | |||
| JP2017064954A | 2017-04-06 | |||
| US20140133177A1 | 2014-05-15 |
Attorney, Agent or Firm:
MOMII Takafumi (JP)
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