US 11,851,590 B2
Resin composition, adhesive member, and display device including the same
Katsuhiro Yamamoto, Yokohama (JP)
Assigned to Samsung Display Co., Ltd., Yongin-si (KR)
Filed by Samsung Display Co., Ltd., Yongin-si (KR)
Filed on Apr. 25, 2021, as Appl. No. 17/239,659.
Claims priority of application No. 10-2020-0059308 (KR), filed on May 18, 2020.
Prior Publication US 2021/0355354 A1, Nov. 18, 2021
Int. Cl. C09J 133/08 (2006.01); B32B 7/12 (2006.01); G06F 3/041 (2006.01)
CPC C09J 133/08 (2013.01) [B32B 7/12 (2013.01); B32B 2457/208 (2013.01); G06F 3/0412 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A resin composition for use as an adhesive member in a display device, the resin composition consisting of:
a first (meth)acrylic resin having a weight average molecular weight of about 10,000 to about 40,000 as a urethane acrylate;
a second (meth)acrylic resin having a molecular weight of about 100 to about 250; and
two or more different photoinitiators,
wherein the second (meth)acrylic resin comprises:
a first sub resin has a glass transition temperature of about −100° C. to about −30° C.; and
a second sub resin differing from the first sub resin,
wherein the first (meth)acrylic resin is included in an amount of about 2 wt % to about 10 wt % with respect to 100 wt % of the total amount of the first and second (meth)acrylic resins,
wherein the first sub resin is included in an amount of about 60 wt % to about 80 wt % with respect to 100 wt % of the total amount of the first and second (meth)acrylic resins,
wherein the second sub resin is included in an amount of about 20 wt % to about 40 wt % with respect to 100 wt % of the total amount of the first and second (meth)acrylic resins,
wherein a weight ratio of the first (meth) acrylic resin to the second (meth) acrylic resin is 1:19 to 1:33, and
wherein the first sub resin is 4-hydroxybutyl acrylate, and the second sub resin is isodecyl acrylate or isbornyl acrylate.