Title:
OPTICAL FILM, AND IMAGE DISPLAY DEVICE USING SAME
Document Type and Number:
WIPO Patent Application WO/2023/223784
Kind Code:
A1
Abstract:
Provided are: an optical film which has high flexibility and high hardness and in which curling is reduced; and an image display device using this optical film. This optical film has a hard coat layer on at least one surface of a transparent base material. The hard coat layer is a cured film of a composition containing: (A) a (meth)acrylic monomer having three or more (meth)acryloyl groups per molecule; (B) a (meth)acrylic polymer which has two or more (meth)acryloyl groups per molecule and has a weight average molecular weight of 15,000-50,000; and (C) a thiol compound. Of the total solid content in the composition, the content of the (meth)acrylic monomer is 60-85 mass%, the content of the (meth)acrylic polymer is 5-35 mass%, and the content of the thiol compound is 0.5-9 mass%. The film thickness of the hard coat layer is 3-20 μm.
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Inventors:
KIM KEON
ARAYA YUSUKE
ARAYA YUSUKE
Application Number:
PCT/JP2023/016264
Publication Date:
November 23, 2023
Filing Date:
April 25, 2023
Export Citation:
Assignee:
TOPPAN INC (JP)
International Classes:
B32B27/30; C09D4/06; C09D133/04; G02B1/14
Domestic Patent References:
| WO2016136329A1 | 2016-09-01 | |||
| WO2010024115A1 | 2010-03-04 |
Foreign References:
| JP2010024380A | 2010-02-04 | |||
| JP2011042795A | 2011-03-03 | |||
| JP2013512305A | 2013-04-11 | |||
| JP2013518713A | 2013-05-23 | |||
| JP2017088844A | 2017-05-25 | |||
| JP2012197383A | 2012-10-18 |
Attorney, Agent or Firm:
OGASAWARA PATENT OFFICE (JP)
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