Title:
OPTICAL LAMINATE AND FLEXIBLE DISPLAY DEVICE
Document Type and Number:
Japanese Patent JP2021075052
Kind Code:
A
Abstract:
To provide an optical laminate that has a base material and a hard coat layer laminated on at least one surface of the base material, and is excellent in bending resistance.SOLUTION: The optical laminate includes at least a base material layer containing a polyamide-based resin and a hard coat layer laminated on at least one surface of the base material layer, includes an intermediate layer having a thickness of 0.3 μm or more and variation in thickness of 25% or less between the base material layer and the hard coat layer. When indentation hardness of the intermediate layer which is measured using a nanoindenter in a cross section in a thickness direction of the optical laminate is represented by AN/mm2 and indentation hardness of the base material layer is represented by BN/mm2, a ratio (A/B) of A to B is 0.96 or less.SELECTED DRAWING: None
Inventors:
OMATSU KAZUYOSHI
SUZUKI HIROMASA
NAKAKOJI TAKASHI
SUZUKI HIROMASA
NAKAKOJI TAKASHI
Application Number:
JP2020178267A
Publication Date:
May 20, 2021
Filing Date:
October 23, 2020
Export Citation:
Assignee:
SUMITOMO CHEMICAL CO
International Classes:
B32B7/022; B32B27/34; C08F20/20; G09F9/00; G09F9/30; H01L27/32; H01L51/50; H05B33/02
Attorney, Agent or Firm:
Michiko Matsutani
Kenichi Morizumi
Iwako Iwaki
Kenichi Morizumi
Iwako Iwaki