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US 2023/0407141 A1Published application
Adhesive film, optical member comprising same, and optical display device comprising same
AssigneeSamsung SDI Co., Ltd.
InventorsDong Myeong SHIN, Ji Yeon KIM, Jin Young LEE, Jae Hyun HAN, Il Jin KIM, Kyoung Gon PARK
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Abstract
Provided are an adhesive film, an optical member comprising same, and an optical display device comprising same, the adhesive film being formed of a composition that includes: a monomer mixture including a monomer having a glass transition temperature of homopolymer of about −50° C. or less, and (meth)acrylate having a hydroxyl group; and an epoxy silane coupling agent, wherein a variation of the shear strain rate of equation 1 is about 10% or less for the adhesive film.
Claims21
An adhesive film formed of a composition comprising:
- a monomer mixture of a monomer having a glass transition temperature of about −50° C. or less in homopolymer phase and a hydroxyl group-containing (meth)acrylate;
- and an epoxy-based silane coupling agent,
- the adhesive film having a variation rate of shear strain of about 10% or less, as calculated according to Equation 1:
- Variation rate of shear strain=[|B−A|/A]×100, [Equation 1]
- (wherein in Equation 1, A is an initial shear strain value of the adhesive film (unit:
- %),
- B is a shear strain value of the adhesive film (unit:
- %) obtained from an adhesive sheet comprising the adhesive film and polyethylene terephthalate release films stacked on both surfaces of the adhesive film, as measured after the adhesive sheet is left at 60° C. and 95% relative humidity for 10 days and left at 25° C. for 2 hours).
5 more elements
Dependencies are inferred from the claim text.