公开(公告)号：US12252635B2

公开(公告)日：2025-03-18

申请号：US17469358

申请日：2021-09-08

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Bookan Ki ,  Kyungmi Kwon ,  Wonseok Kim ,  Hoyun Byun ,  Jeongin Lee

IPC: C09J133/10 ,  C08F20/06 ,  G02B1/04 ,  G02B1/14 ,  G06F1/16

Abstract: Provided are an adhesive composition having enhanced reliability at edge portions of a display apparatus and the display apparatus, the display apparatus including a display panel displaying an image to the outside, a cover window arranged on the display panel, and an adhesive layer interposed between the display panel and the cover window, the adhesive layer including an adhesive composition including (meth)acrylate having an alicyclic group, a low-temperature glass transition (meth)acrylic monomer, (meth)acrylate having a hydroxyl group, a high-temperature glass transition (meth)acrylic monomer, and a reactive diluent monomer, in which a maximum value of stress of the adhesive composition, with the stress changing over time when a strain of 25% is applied at 60° C. to the adhesive layer, is from about 30000 Pa to about 40000 Pa.

公开(公告)号：US20220315815A1

公开(公告)日：2022-10-06

申请号：US17569137

申请日：2022-01-05

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Kyungmi Kwon ,  Bookan Ki ,  Hoyun Byun

IPC: C09J175/04 ,  C09J133/08 ,  C08F220/18 ,  C08G18/75

Abstract: A display apparatus includes a display panel, a cover window above the display panel, and an adhesive layer between the display panel and the cover window. The adhesive layer includes: (meth)acrylate having an alicyclic group, (meth)acrylate having a glass transition temperature of about 40° C. or less, cross-linkable (meth)acrylate, and a thermal curing agent including an isocyanate-based compound. The adhesive composition has a first elastic modulus at a first temperature and a second elastic modulus at a second temperature greater than the first temperature, and the second elastic modulus is equal to or greater than the first elastic modulus.