Title:
OPTICAL ADHESIVE COMPOSITION AND OPTICAL LAMINATE
Document Type and Number:
Japanese Patent JP2021161262
Kind Code:
A
Abstract:
To provide an optical adhesive composition and an optical laminate appropriate for manufacturing a self-luminous type display device such as a mini/micro LED display device with improved antireflection function of metal wiring and contrast, and excellent in step absorbency and processability.SOLUTION: A optical adhesive composition includes a (meth)acrylic block copolymer and a coloring agent. The (meth)acrylic block copolymer includes a high Tg segment having glass-transition temperature of 0 to 100°C, and a low Tg segment having glass-transition temperature of -100°C or higher and lower than 0°C, having a peak of tanδ in an area of 0°C or higher and an area lower than 0°C, respectively. Here, the glass-transition temperature is calculated with FOX equation from a monomer component composition composing each segment. An optical laminate includes a substrate and an adhesive layer formed with the optical adhesive composition.SELECTED DRAWING: None
Inventors:
IEHARA KEITA
SANADA KASANE
ASAI KAZUKO
TAKARADA SHO
NAKANO TAKESHI
SANADA KASANE
ASAI KAZUKO
TAKARADA SHO
NAKANO TAKESHI
Application Number:
JP2020064489A
Publication Date:
October 11, 2021
Filing Date:
March 31, 2020
Export Citation:
Assignee:
NITTO DENKO CORP
International Classes:
C09J153/00; B32B27/00; C09J7/10; C09J7/38; G02B5/02
Domestic Patent References:
| JP2020037657A | 2020-03-12 | |||
| JP2011037082A | 2011-02-24 |
Foreign References:
| WO2018016407A1 | 2018-01-25 |
Attorney, Agent or Firm:
Goto Patent Office