Samsung Sdi Co., Inc.

Cheil Industries Inc.

Do Heon Lee

In Cheon Han

Tae Hyun Lee

Mi Yeon Yu

Seung Hoon Lee

Ik Hwan Cho

Il Jin Kim

Woo Jin Jeong

Ri Ra Jung

Yoo Jin Suh

Young Jong Kim

Byung Joo Byun

Mi Ran Seo

A polarizing plate for light emitting displays and a light emitting display including the same are provided. A polarizing plate includes: a polarizer; and a first liquid crystal retardation film, a first bonding layer, and a second liquid crystal retardation film sequentially stacked on a surface of the polarizer, and the first bonding layer has a glass transition temperature of about 70&#xb0; C. to about 100&#xb0; C. and is formed of a composition including at least one selected from among an alicyclic group-containing glycidyl ether and an aromatic group-containing glycidyl ether.

Polarizing plate for light emitting displays and light emitting display comprising the same

Provided are an adhesive composition for a polarizing plate, a polarizing plate, and an optical display device, the adhesive composition comprising an epoxy-based compound, a (meth)acrylate-based compound, a photo-acid generator, and an optical radical initiator, the (meth)acrylate-based compound comprising a mixture of a bifunctional (meth)acrylate-based compound and a monofunctional (meth)acrylate-based compound having a hydrophobic functional group, wherein the adhesive strength measured after the adhesive composition for a polarizing plate is separately applied to a PET film, a TAC film, and a COP film, to which a polarizer is then bound, followed by photo-curing, is about 200 gf/inch or more.

Adhesive composition for polarizing plate, polarizing plate, and optical display device

Provided are: a polarizing plate; a method for manufacturing the polarizing plate; and an optical display device comprising the same, the polarizing plate having an adhesive layer, a barrier layer, a polarizer, and a protective film, which are sequentially stacked, wherein the barrier layer is formed from a barrier layer composition containing an epoxy-based compound and an antimony sulfonium-based initiator.

Polarizing plate, method for manufacturing polarizing plate, and optical display device comprising same

Disclosed are an adhesive composition for polarizing plates, a polarizing plate using the same, a method for preparing the same, and an optical member including the same. The adhesive composition includes (A) a (meth)acrylic radical compound, (B) a cationic epoxy compound, (C) a phenoxy resin, and (D) a photoinitiator.

Polarizing plate using adhesive composition and optical member comprising the same

A composition for protective layers of a polarizing plate includes a photocurable monomer or oligomer having a glass transition temperature (Tg) of about 50&#xb0; C. or greater, particles, a reactive monomer or oligomer, and an initiator. A polarizing plate includes a polarizer and a protective layer formed from the composition on one or both surfaces of the polarizer. The protective layer has a storage modulus at about 25&#xb0; C. of greater than about 2000 MPa, as measured at a heating rate of 10&#xb0; C./min, a temperature of &#x2212;50&#xb0; C. to 100&#xb0; C., a frequency of 1 Hz, and a strain of 0.5%. An optical display includes the polarizing plate.

Polarizing plate, composition for protective layers of a polarizing plate, and optical display including the same

A polarizing plate includes a polarizer, a bonding layer on an upper surface of the polarizer, a protective film on an upper surface of the bonding layer and having a moisture transmittance of about 30 g/m2&#xb7;24 hr or less at 40&#xb0; C. and 90 % relative humidity (RH), and a barrier layer on a lower surface of the polarizer and formed of a barrier layer composition including an alicyclic epoxy resin having a glass transition temperature of about 200&#xb0; C. or more. The polarizing plate may have a light transmittance variation rate of 3% or less, as calculated by Equation 1:Light transmittance variation rate=|0&#x2212;500|/0&#xd7;100&#x2003;&#x2003;(1),where Tis an initial light transmittance and Tis a light transmittance after 500 hours as set forth herein.

Polarizing plate and optical display including the same

An adhesive composition for polarizing plates, a polarizing plate using the same, and an optical member including the same, the adhesive composition including an epoxy compound, a (meth)acrylic compound, and a polyfunctional thiol compound.

Adhesive composition for polarizing plate, polarizing plate using the same, and optical member including the same

An adhesive composition for a polarizing plate, an adhesive film formed from the same, a polarizing plate including the same, and an optical display including the same are disclosed. The adhesive film for a polarizing plate is formed from an adhesive composition including an epoxy compound and a (meth)acrylate compound, and the adhesive film has an FT-IR peak ratio of about 0.015 or lower as defined by Equation 1.Equation 1FT-IR peak ratio=&#x2003;&#x2003;(1)In Equation 1, A is the peak height of the peak attributable to the &#x2014;(C&#x2550;O)&#x2014; bond at 1724 cm, and B is the peak height of the peak attributable to the &#x2014;CH&#x2550;CH&#x2014; bond at 1636 cm.

Adhesive film for polarizing plate, adhesive composition for the same, polarizing plate comprising the same and optical display comprising the same

An adhesive composition for polarizing plates includes an epoxy compound, a (meth)acrylic compound, an alkoxysilane compound including at least one epoxy group, and an alkoxysilane compound including at least one (meth)acrylate group. A polarizing plate using the adhesive composition can exhibit good adhesion, reliability, durability, water resistance, and high temperature/high humidity resistance. An optical apparatus includes the polarizing plate.

Growing community of inventors

Uiwang-si, South Korea

Do Heon Lee