Cheil Industries Inc.

Samsung Sdi Co., Inc.

Lee June Kim

In Cheon Han

Ik Hwan Cho

Kyoung Jin Ha

Ji Hye Kwon

Kil Sung Lee

Ki Yong Kim

Chan Woo Kim

Sung Hyun Mun

Irina Nam

Jee Hee Kim

Seung Jib Choi

Se Il Oh

An adhesive film includes a cured product of a (meth)acrylic copolymer and has a refractive index from about 1.5 to about 1.6. An adhesive composition for preparing the adhesive film includes a (meth)acrylic copolymer of a monomer mixture. A display member includes the adhesive film coated on one or more surfaces of an optical film.

Adhesive film, adhesive composition for the same, and display member including the same

An adhesive film, an adhesive composition for the same, and a display member including the same are disclosed. The adhesive film includes a cured product of an adhesive composition, which includes a (meth)acrylic copolymer formed from a monomer mixture including (a1) an alkyl (meth)acrylate having a Cto Calkyl group and (a2) an alkyl (meth)acrylate having an alkyl group having 18 or more carbon atoms. The adhesive film has a ratio (B/A) of 90&#xb0; peel strength (B) after aging the adhesive film at 25&#xb0; C. for 30 minutes and leaving the adhesive film at 90&#xb0; C. for 40 seconds to 90&#xb0; peel strength (A) after aging the adhesive film at 25&#xb0; C. for 30 minutes of about 0.1 or less.

An adhesive film including a compound including a urethane functional group, the adhesive film having a ratio (B/A) of 180&#xb0; peel strength (B) after leaving the adhesive film at 70&#xb0; C. for 2 minutes to 180&#xb0; peel strength (A) at 25&#xb0; C. of about 5 or more, is disclosed. A display apparatus including the adhesive film is also disclosed.

Adhesive film, adhesive composition for the same, and display apparatus including the same

An adhesive film, an adhesive composition for the same, and an optical member including the same, the adhesive film having an index of refraction of about 1.48 or more and a dielectric constant variation of about 30% or less, as expressed by Equation 1: 

Adhesive film, adhesive composition for the same, and optical member including the same

An adhesive film, an adhesive composition for the same, and a display apparatus including the same. The adhesive film includes a urethane functional group, has a glass transition temperature (Tg) of about 30&#xb0; C. or less, a loss modulus of about 4&#xd7;10dyn/cmto about 8&#xd7;10dyn/cmupon frequency sweep testing under conditions of a strain of 3%, 60&#xb0; C. and 1 rad/s, and tan &#x3b4; of about 0.2 to 0.55 upon frequency sweep testing under conditions of a strain of 3%, 60&#xb0; C. and 1 rad/s.

The present invention relates to a photocurable adhesive composition. The photocurable adhesive composition comprises a urethane(meth)acrylate resin, a functional-group-containing polybutadiene, a photocurable monomer and a photoinitiator; and the functional group is either an epoxy group or a hydroxyl group. The photocurable adhesive composition ensures good outdoor readability, has outstanding adhesive properties, and impact strength and optical transparency, and minimizes the phenomenon whereby substantial contraction occurs during photocuring, and thus can be suitably used for a display.

Photocurable adhesive composition and display device comprising same

An adhesive film and an optical display including the same. The adhesive film has a tan &#x3b4; of about 0.12 to about 0.4 upon frequency sweep testing under conditions of a strain of 5%, 30&#xb0; C. and 1 rad/s, and a tan &#x3b4; of about 0.2 to about 0.7 upon frequency sweep testing under conditions of a strain of 5%, 30&#xb0; C. and 100 rad/s.

Adhesive film and optical display including the same

A liquid crystal display module includes a backlight unit, a liquid crystal display panel on a top surface of the backlight unit, and a thermoplastic layer on at least one lateral surface of the backlight unit and at least one lateral surface of the liquid crystal display panel, the thermoplastic layer including a solidified thermoplastic resin exhibiting viscosity of about 300 cps to about 1,000 cps at a temperature of about 120&#xb0; C. to about 130&#xb0; C.

Liquid crystal display module and method of forming the same

A photocurable adhesive composition, a module apparatus, and a method of assembling a module, the composition including a urethane (meth)acrylate binder, the composition having a viscosity of about 3,000 to about 6,000 cps at 25&#xb0; C., and providing an adhesive film having an adhesive strength of about 30 N/cmor more.

Photocurable adhesive composition, module apparatus using the same, and method of assembling a module

An optical adhesive film prepared from an optical adhesive composition, an optical adhesive composition, and an apparatus, the optical adhesive composition including a urethane (meth)acrylate copolymer, a reactive monomer, and an initiator, wherein the optical adhesive film has a tensile strength of about 1 to about 70 gf/mmat a thickness of 500 &#x3bc;m after curing.

Optical adhesive film, apparatus including the same, and optical adhesive composition

An optical adhesive film prepared from an optical adhesive composition, an optical adhesive composition, and a display panel, the optical adhesive film having an elongation of about 200 to about 800% and a tensile strength of about 10 gf/mmor less, and the optical adhesive composition including a urethane (meth)acrylate copolymer, a reactive monomer, and an initiator.

Optical adhesive composition for displays, optical adhesive film prepared from the same, and display panel including the same

An optical adhesive composition includes a urethane (meth)acrylate resin having at least one hydroxyl group and at least one vinyl group, the urethane (meth)acrylate resin having a curing contraction ratio expressed by Equation 1 of about 0 to about 3%; and an adhesion of about 30 to about 80 kgf:Curing contraction ratio (%)=()/&#xd7;100,&#x2003;&#x2003;[Equation 1]where A is a specific gravity of the optical adhesive composition before curing, and B is a specific gravity of the solid optical adhesive composition after curing.

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Uiwang-si, South Korea

Lee June Kim