公开(公告)号：US20240191005A1

公开(公告)日：2024-06-13

申请号：US18483476

申请日：2023-10-09

Applicant: Samsung Display Co., Ltd.

Inventor： Katsuhiro YAMAMOTO ,  Hideo UMEDA ,  BOO-KAN KI ,  DONG-HUN KANG ,  HO YUN BYUN ,  DONGHYEON LEE ,  Sebeen LEE ,  JEONGIN LEE

IPC: C08F20/06 ,  C08F20/26 ,  C08F20/34 ,  C09J133/08 ,  C09J133/14

CPC classification number: C08F20/06 ,  C08F20/26 ,  C08F20/34 ,  C09J133/08 ,  C09J133/14 ,  C09D11/30

Abstract: A resin composition of an embodiment may include at least one oligomer, a plurality of monofunctional acrylate monomers, and at least one photoinitiator. The plurality of monofunctional acrylate monomers may include first to third acrylate monomers. The first monofunctional acrylate monomer includes a hydroxy group, and may have a weight of 5 wt % to 20 wt % based on the total weight of the resin composition. The second monofunctional acrylate monomer includes a branched alkyl group having 10 to 20 carbon atoms, and may have a weight of 25 wt % to 40 wt % based on the total weight of the resin composition. The third monofunctional acrylate monomer includes a non-aromatic ring group, and may have a weight of 20 wt % to 30 wt % based on the total weight of the resin composition. Accordingly, the resin composition of an embodiment may exhibit suitable discharge stability, and may exhibit suitable adhesion reliability.

公开(公告)号：US20230322995A1

公开(公告)日：2023-10-12

申请号：US18335387

申请日：2023-06-15

Applicant: Samsung Display Co., Ltd.

Inventor： Katsuhiro YAMAMOTO

IPC: C08F283/00 ,  C09J151/08

CPC classification number: C08F283/008 ,  C09J151/08

Abstract: A resin composition has a viscosity of equal to or less than about 20 mPa·s at a temperature in a range of about 30° C. to about 50° C. as measured according to JIS Z8803, a storage modulus in a range of about 1.7×105 Pa to about 3×105 Pa at about −20° C., and a storage modulus in a range of about 1.5×104 Pa to about 6×104 Pa at about 25° C. An adhesive member formed of the resin composition is also provided.

公开(公告)号：US20230164252A1

公开(公告)日：2023-05-25

申请号：US17872309

申请日：2022-07-25

Applicant: Samsung Display Co., Ltd.

Inventor： Katsuhiro YAMAMOTO ,  Shintaro Nagayama

IPC: H04M1/02 ,  C09J133/08

CPC classification number: H04M1/0268 ,  C09J133/08 ,  H04M1/0216

Abstract: A resin composition includes at least one (meth)acrylate monomer, a plurality of bifunctional urethane (meth)acrylates, and at least one photoinitiator. The plurality of bifunctional urethane (meth)acrylates includes a first bifunctional urethane (meth)acrylate having a first weight average molecular weight, and a second bifunctional urethane (meth)acrylate having a second weight average molecular weight that is higher than the first weight average molecular weight. A first weight of the first bifunctional urethane (meth)acrylate is greater than or equal to a second weight of the second bifunctional urethane (meth)acrylate with respect to a total weight of the resin composition.

公开(公告)号：US20220144992A1

公开(公告)日：2022-05-12

申请号：US17371341

申请日：2021-07-09

Applicant: Samsung Display Co., Ltd.

Inventor： Katsuhiro YAMAMOTO

IPC: C08F283/00 ,  C09J151/08

Abstract: A resin composition has a viscosity of equal to or less than about 20 mPa·s at a temperature in a range of about 30° C. to about 50° C. as measured according to JIS Z8803, a storage modulus in a range of about 1.7×105 Pa to about 3×105 Pa at about −20° C., and a storage modulus in a range of about 1.5×104 Pa to about 6×104 Pa at about 25° C. An adhesive member formed of the resin composition is also provided.

公开(公告)号：US20220135785A1

公开(公告)日：2022-05-05

申请号：US17406526

申请日：2021-08-19

Applicant: Samsung Display Co., Ltd.

Inventor： Katsuhiro YAMAMOTO

IPC: C08L33/14 ,  C08F220/34 ,  C08F2/48 ,  C08F220/06 ,  C09J133/14 ,  C09J143/02 ,  C08F230/02 ,  C08L43/02 ,  G09F9/30

Abstract: A resin composition includes a urethane (meth)acrylate oligomer. When the resin composition is cured with an ultraviolet light and loaded a shear force of about 2,000 Pa, the difference between the shear strain of the cured resin composition about 5 seconds after the loading and a shear strain of the cured resin composition about 300 seconds after the loading is less than about 5% A shear strain of the cured resin composition about 30 seconds after the shear force is removed from the cured resin composition is less than about 2%.

公开(公告)号：US20230139019A1

公开(公告)日：2023-05-04

申请号：US17862984

申请日：2022-07-12

Applicant: Samsung Display Co., Ltd.

Inventor： Katsuhiro YAMAMOTO

IPC: C08F222/10 ,  C08F220/20 ,  C08F220/18 ,  C08F220/28 ,  C08F2/48 ,  C09J133/08

Abstract: A resin composition includes: at least two monofunctional (meth)acrylates, at least one bifunctional (meth)acrylate, and at least one photoinitiator. The resin composition has a shear viscosity of about 8 mPa·s to about 50 mPa·s as measured at a temperature of about 25° C. according to JIS Z8803, and an apparent extensional viscosity of about 100 mPa·s or less under conditions of the temperature of about 25° C. and a Hencky strain of about 6.

公开(公告)号：US20220144989A1

公开(公告)日：2022-05-12

申请号：US17393980

申请日：2021-08-04

Applicant: Samsung Display Co., Ltd.

Inventor： Katsuhiro YAMAMOTO

IPC: C08F220/34 ,  C09J4/00 ,  C08F220/20 ,  C08F2/50 ,  G02F1/1333

Abstract: A resin composition comprises a urethane (meth)acrylate oligomer. The resin composition has a storage modulus of about 2×103 Pa to about 2×104 Pa when irradiated with 200 mJ/cm2 of an ultraviolet light.

公开(公告)号：US20210355354A1

公开(公告)日：2021-11-18

申请号：US17239659

申请日：2021-04-25

Applicant: Samsung Display Co., Ltd.

Inventor： Katsuhiro YAMAMOTO

IPC: C09J133/08 ,  B32B7/12

Abstract: According to one aspect of the invention, a resin composition for use as an adhesive member in a display device includes: a first (meth)acrylic resin having a weight average molecular weight of about 10,000 to about 40,000; two or more second (meth)acrylic resins having a molecular weight of about 100 to about 250 and differing from one another; and two or more different photoinitiators.

公开(公告)号：US20210292536A1

公开(公告)日：2021-09-23

申请号：US17117846

申请日：2020-12-10

Applicant: Samsung Display Co., Ltd.

Inventor： Tetsuya FUJIWARA ,  Hideo UMEDA ,  Katsuhiro YAMAMOTO ,  Keisuke MORITA

IPC: C08L33/08 ,  C08F220/20 ,  C08F220/18 ,  C08G83/00 ,  C09J7/30

Abstract: A resin composition includes a first (meth)acrylic resin having a weight average molecular weight of about 500 or less, a second (meth)acrylic resin having a weight average molecular weight of about 6,000 or more, a radical polymerization initiator, and a polyrotaxane compound, where the resin composition has a viscosity in a range of about 1.0 mPa·s to about 100 mPa·s at 25° C.