公开(公告)号：US20240318046A1

公开(公告)日：2024-09-26

申请号：US18614565

申请日：2024-03-22

Applicant: Samsung Display Co., Ltd.

Inventor： Joosub Lee ,  Youngju Park ,  Seongsoo Yoo ,  Sangwon Eun ,  Jinyoung Lee

IPC: C09J7/30 ,  B32B7/12 ,  B60K35/22 ,  C09J7/10 ,  C09J133/08 ,  C09J133/14 ,  H05K5/03

CPC classification number: C09J7/30 ,  B32B7/12 ,  B60K35/22 ,  C09J7/10 ,  C09J133/08 ,  C09J133/14 ,  B32B2307/42 ,  B32B2307/54 ,  B32B2307/748 ,  B32B2457/208 ,  B32B2605/003 ,  C09J2203/354 ,  C09J2433/00 ,  H05K5/03

Abstract: An adhesive film formed by curing a composition including a high-molecular-weight acrylic polymer having a weight average molecular weight of 700,000 or more, a low-molecular-weight acrylic polymer having a weight average molecular weight of less than 500,000, and a cross-linking agent, a photoinitiator, a molecular weight regulator, or a combination thereof is provided. Based on 100 parts by weight, which is a sum of an amount of the high-molecular-weight acrylic polymer and an amount of the low-molecular-weight acrylic polymer, the amount of the high-molecular-weight acrylic polymer is 30 parts by weight or more, and the adhesive film has a degree of stress relaxation of 0.01 to 0.50, a creep at 50° C. of 4% or more, and a modulus at 25° C. of 0.04 MPa to 0.70 MPa.

公开(公告)号：US20240244926A1

公开(公告)日：2024-07-18

申请号：US18382300

申请日：2023-10-20

Applicant: Samsung Display Co., LTD.

Inventor： Sangwon Eun ,  Youngju Park ,  Seongsoo Yoo ,  Joosub Lee ,  Jinyoung Lee

IPC: H10K59/80 ,  C08K5/12 ,  C09J133/06

CPC classification number: H10K59/8722 ,  C08K5/12 ,  C09J133/06 ,  H10K59/872 ,  H10K59/8792 ,  C09J2203/326

Abstract: A display device includes: a display panel including a display area, in which a plurality of pixels are arranged, and a peripheral area adjacent to the display area, a polarizing member disposed on the display panel, a cover window disposed on the polarizing member, and an adhesive layer attaching the polarizing member and the cover window, where the adhesive layer has a stress relaxation rate in a range of about 0.36 to about 0.45.