Samsung Sdi Co., Inc.

Cheil Industries Inc.

Yi Eun Kim

Won Kyu Kim

In Cheon Han

Yoo Jin Suh

Ha Yun Cho

Seung Jun Lee

Chul Ho Jeong

Hae Ryong Chung

Woo Jin Jeong

Ri Ra Jung

Eun Hwan Jeong

Jin Woo Kim

Min Cheol Park

Seung Hoon Lee

Kwang Ho Shin

Ji Hyun Hwang

Ji Hyun Wi

Da Hee Lee

Provided is a liquid crystal display device comprising: a light source having a wide color reproduction range; a liquid crystal panel; and a polarizing plate arranged on the visible side of the liquid crystal panel, wherein the polarizing plate comprises a polarizer and a polarizer protecting film; the polarizer protecting film comprises a polyester base film having an in-plane phase difference of 8,000 nm or higher at a wavelength of 550 nm and a primer layer formed on at least one surface of the polyester base film; and a coating layer having a lower refractive index than the primer layer is additionally formed on a surface of the primer layer.

Liquid crystal display device

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 polarizing plates, a polarizing plate including the same, and an optical display including the same are provided. An adhesive film for polarizing plates is formed of an adhesive composition for polarizing plates, which includes a non-carboxylic acid (meth)acrylic copolymer, an isocyanate curing agent, and an epoxy curing agent, wherein the adhesive film has a modulus at 85&#xb0; C. of about 0.1 MPa to about 0.8 MPa and a modulus ratio of about 3 or less, as calculated by the equation, Modulus ratio=G'(25&#xb0; C.)/G&#x2032;(85&#xb0; C.), where G&#x2032;(25&#xb0; C.) is modulus (unit: MPa) at 25&#xb0; C. of an adhesive film and G&#x2032;(85&#xb0; C.) is modulus (unit: MPa) at 85&#xb0; C. of the adhesive film.

Adhesive film for polarizing plate, polarizing plate including 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.

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 and a polarizing plate, the adhesive composition including an isocyanate curing agent and having a creeping distance decrease rate of 10% or less, wherein the creeping distance decrease rate is calculated by Equation 1:Creeping distance decrease rate (%)=|()/|&#xd7;100,&#x2003;&#x2003;[Equation 1]

Adhesive composition for polarizing plate and polarizing plate prepared using the same

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

An adhesive film for polarizing plates includes a cured product of a composition including a (meth)acrylic copolymer and a cross-linking agent, and has a peel strength ratio of about 6 or more, as represented by Equation 1. An adhesive composition for the adhesive film, a polarizing plate including the adhesive film, and an optical display including the adhesive film are also described.

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

An optical member, an optical adhesive, and a display apparatus, the optical member including a transparent conductive film; an optical adhesive layer on the transparent conductive film; and a polarizer plate stacked on the optical adhesive layer, wherein a surface resistance difference RsRsof a specimen including the optical adhesive layer is less than about 0.2&#x3a9;, the specimen being prepared by manufacturing the polarizer plate having the optical adhesive layer thereon and stacking two transparent conductive films on opposite upper sides of the optical adhesive layer, where Rsis an initial surface resistance of the specimen and Rs2 is a surface resistance of the specimen kept at 70&#xb0; C. and 95% RH for 48 hours.

Optical member and display apparatus including the same

An adhesive composition for a polarizer plate, the adhesive composition including a (meth)acrylic copolymer and a polyisocyanate curing agent containing an isocyanurate structure.

Adhesive composition for polarizer plate, polarizer plate including adhesive layer including the same, and optical display including the same

An adhesive for adhering a protective film, the protective film having a water vapor transmission rate of about 100 g/m&#xb7;day or less at 40&#xb0; C. and about 90% RH during manufacture of an optical member including a polarizing plate, a polarizing plate including an adhesive layer prepared from the adhesive, and an optical member including the polarizing plate, the adhesive including a (meth)acrylic copolymer, the (meth)acrylic copolymer having a weight average molecular weight of about 800,000 g/mol or more; a curing agent; and a silane coupling agent, wherein an adhesive layer prepared from the adhesive has a storage modulus, after curing, of about 8&#xd7;10Pa or more at about 85&#xb0; C. and a frequency of about 10rad/s to about 10rad/s.

Adhesive, polarizing plate including an adhesive layer prepared from the adhesive, and optical member including the polarizing plate

A polarizing plate and an optical member, the polarizing plate including an adhesive layer, the adhesive layer being prepared from an adhesive composition including a (meth)acrylic copolymer, a crosslinking agent, and a tackifier, the tackifier including an acrylic modified petroleum resin represented by Formula 1:R'&#x2014;CO&#x2014;O&#x2014;R&#x2003;&#x2003;[Formula 1]

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Uiwang-si, South Korea

Yi Eun Kim