Title:
OPTICAL MULTILAYER BODY
Document Type and Number:
WIPO Patent Application WO/2023/145602
Kind Code:
A1
Abstract:
The present invention provides an optical multilayer body wherein: an image display device and a touch sensor are stacked upon each other; and noise is not likely to be transmitted from the image display device to the touch sensor. An optical multilayer body 1 according to the present invention sequentially comprises a touch sensor 41, an adhesive layer 21 and an image display device 5 in this order; the adhesive layer 21 is a polyester-based adhesive layer; and the adhesive layer 21 has a dielectric constant of 4.0 or less at the frequency of 100 kHz. It is preferable that the adhesive layer 21 contains a polyester resin which contains a constituent unit that is derived from a compound having 20 or more carbon atoms and two or more functional groups that are capable of forming an ester bond.
Inventors:
SHIBANO MASAYA (JP)
HORIUCHI YOSHIYUKI (JP)
KATAMI HIROFUMI (JP)
HORIUCHI YOSHIYUKI (JP)
KATAMI HIROFUMI (JP)
Application Number:
PCT/JP2023/001526
Publication Date:
August 03, 2023
Filing Date:
January 19, 2023
Export Citation:
Assignee:
NITTO DENKO CORP (JP)
International Classes:
B32B27/00; B32B27/36; C09J7/38; C09J167/00; G06F3/041; G06F3/044
Domestic Patent References:
| WO2021200716A1 | 2021-10-07 | |||
| WO2022019260A1 | 2022-01-27 |
Foreign References:
| JP2020175560A | 2020-10-29 | |||
| JP2013039784A | 2013-02-28 | |||
| JP2017171819A | 2017-09-28 | |||
| JP2015105286A | 2015-06-08 |
Attorney, Agent or Firm:
G-CHEMICAL INTELLECTUAL PROPERTY FIRM (JP)
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