Samsung Sdi Co., Inc.

Ha Yun Cho

In Cheon Han

Won Kyu Kim

Seung Jun Lee

Yi Eun Kim

Woo Jin Jeong

Yoo Jin Suh

Il Jin Kim

Mi Yeon Yu

Seung Hoon Lee

Chul Ho Jeong

Irina Nam

Ri Ra Jung

Han Joo Choi

An adhesive film for polarizing plates, a polarizing plate including the same, and an optical display apparatus including the same are provided. An adhesive film for polarizing plates is formed of an adhesive composition including a (meth)acrylic copolymer, an isocyanate curing agent, a metal chelate curing agent, and an antistatic agent, and has a surface resistance difference ΔSR of 1.0 (log(Ω/□)) or less, as calculated by Equation 1 and, in Equation 1, SR1 is 10 (log(Ω/□)) or less.

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

An adhesive film for polarizing plates, a polarizing plate including the same, and an optical display including the same are provided. The adhesive film for polarizing plates is formed of an adhesive composition comprising: a (meth)acrylic copolymer; an adhesion promoter; a mixture of an isocyanate curing agent and a carbodiimide curing agent; and a UV absorbent, and the adhesive film has a glass transition temperature of about &#x2212;47&#xb0; C. to &#x2212;40&#xb0; C., and the adhesive film has a light transmittance of about 3% or less at a wavelength of about 380 nm.

Adhesive film for polarizing plates, polarizing plate including the same and optical display including the same

A polarizing plate includes a polarizing film, a first adhesive layer or a bonding layer, a retardation layer, and a third adhesive layer, and includes: a UV absorber comprising an indole UV absorber, a phenylbenzotriazole UV absorber, and/or a triazine UV absorber, wherein the UV absorber has a maximum absorption wavelength of 370 nm or higher, the polarizing plate has a light transmittance of 5% or less in a wavelength range of about 400 nm to about 405 nm and a light transmittance of 35% or higher in a wavelength range of about 440 nm to about 450 nm, the first adhesive layer has a modulus of 1&#xd7;105 Pa or higher at 80&#xb0; C. and a modulus of 1&#xd7;105 Pa or higher at 30&#xb0; C., and the third adhesive layer has a modulus of 5&#xd7;104 Pa to 1&#xd7;106 Pa at 80&#xb0; C. and a modulus of 1&#xd7;105 Pa to 3&#xd7;106 Pa at 30&#xb0; C.

Polarizing plate for light emitting display apparatus having adhesive layers of specified modulus

A polarizing plate, a method for manufacturing the same, and an optical display including the same are disclosed. The polarizing plate includes a polarizer, a protective coating layer on one surface of the polarizer, and an adhesive layer on one surface of the protective coating layer. The polarizing plate satisfies inequality 1.max&#x2212;min&#x2264;0.02&#x2003;&#x2003;(1)In Inequality 1, Rmax is the maximum index of refraction among the indexes of refraction of the polarizer, the protective coating layer and the adhesive layer, and Rmin is the minimum index of refraction among the indexes of refraction of the polarizer, the protective coating layer and the adhesive layer.

Polarizing plate, method for manufacturing the same, and optical display including the same

An adhesive film for a polarizing plate includes a functional group represented by Formula 1: wherein * represents a binding site; A is a Cto Caliphatic hydrocarbon group; B is &#x2014;O&#x2014;, &#x2014;S&#x2014;, a Cto Caliphatic hydrocarbon group, or a single bond; Ris a Cto Caliphatic hydrocarbon group; and n is an integer from 1 to 5.

Adhesive film for polarizing plate, polarizing plate including the same and optical display including the same

An adhesive film for polarizing plates includes a (meth)acrylic copolymer obtained by polymerizing about 15 wt % to about 30 wt % of a (meth)acrylic monomer having a hetero-alicyclic ring. The adhesive film has a storage modulus (G') of about 30 kPa or greater as determined from Frequency sweep testing at 85&#xb0; C. by oscillation at an angular speed of 10rad/s to 10rad/s. An adhesive composition for the same, a polarizing plate including the same, and an optical display device including the same are also disclosed.

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

An adhesive film for polarizing plates has a K value of about 0.2 to about 0.5, as calculated by Equation 1. A polarizing plate includes the adhesive film for polarizing plates. An optical display includes the polarizing plate. The adhesive films for polarizing plates according to embodiments of the invention suppress light leakage due to dimensional changes in the polarizing plates at high temperature and/or high humidity.&#x2003;&#x2003;Equation 1

An adhesive composition for polarizing plates includes a (meth)acrylic copolymer, an isocyanate crosslinking agent, and a silane coupling agent. The molar ratio (A) of the number of moles of hydroxyl groups in the (meth)acrylic copolymer may be about 2.5 mol % to about 4 mol %, the molar ratio (B) of the number of moles of alkoxy silane groups in the silane coupling agent may be about 50 mol % to about 80 mol %, and the molar ratio (C) of the number of moles of isocyanate groups of the isocyanate crosslinking agent may be about 20 mol % to about 50 mol %, based on the total number of moles of alkoxy silane groups of the silane coupling agent and isocyanate groups of the isocyanate crosslinking agent. An adhesive film is formed from the adhesive composition, a polarizing plate includes the adhesive film, and an optical display includes the polarizing plate.

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

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Uiwang-si, South Korea

Ha Yun Cho