Resin composition, adhesive member, and display device including the same

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.

2. The resin composition of claim 1 , wherein the first (meth)acrylic resin comprises urethane (meth)acrylate.

3. The resin composition of claim 1 , wherein the photoinitiators comprise at least one of a self-cleavage polymerization initiator or a hydrogen drawing polymerization initiator.

4. The resin composition of claim 3 , wherein the self-cleavage polymerization initiator comprises an acylphosphine oxide-based polymerization initiator.

5. The resin composition of claim 1 , wherein the resin composition has a viscosity at 25° C. of about 20 mPa·s to about 25 mPa·s, as measured according to the procedure JIS Z8803 (2011).

6. The resin composition of claim 1 , wherein the resin composition has a contact angle of about 10° to about 15° with respect to a slide glass.

7. An adhesive member for a display device, the adhesive member comprising a polymer made from a 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; 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.

8. The adhesive member of claim 7 , wherein the first (meth)acrylic resin comprises urethane (meth)acrylate.

9. The adhesive member of claim 7 , wherein the first sub resin comprises at least one of 4-hydroxybutyl acrylate or isodecyl acrylate, and wherein the second sub resin comprises at least one of isobornyl acrylate, (2-2-ethyl-1,3-dioxolan-4-yl)methyl acrylate, 6-hydroxyhexyl acrylate, or 10-hydroxydecyl acrylate.

10. The adhesive member of claim 7 , wherein the photoinitiators comprise at least one of a self-cleavage polymerization initiator or a hydrogen drawing polymerization initiator.

11. The adhesive member of claim 10 , wherein the self-cleavage polymerization initiator comprises an acylphosphine oxide-based polymerization initiator.

12. The adhesive member of claim 7 , wherein the adhesive member has a peel strength of about 1.2 kg/inch to about 2.0 kg/inch with respect to glass.

13. A display device comprising:

a display panel;

a window disposed on the display panel; and

an adhesive member disposed between the display panel and the window,

wherein the adhesive member comprises a polymer made from a resin composition, and the resin composition consists 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,

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.