LIQUID CRYSTAL DISPLAY DEVICE AND POLARIZING PLATE KIT

The present invention provides a liquid crystal display device and a polarizing plate kit, restricting non-uniformity in displaying or bending or yellowing of a polarizing plate even when applied to a liquid crystal panel and also preventing a film from being scorched when the film is unveiled. The...

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Bibliographic Details
Main Authors YAMASHITA TOMOHIRO, NAKATA MIE, MURAYAMA SHUNSUKE, KIMURA MAKIKO
Format Patent
LanguageEnglish
Korean
Published 26.08.2016
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Summary:The present invention provides a liquid crystal display device and a polarizing plate kit, restricting non-uniformity in displaying or bending or yellowing of a polarizing plate even when applied to a liquid crystal panel and also preventing a film from being scorched when the film is unveiled. The liquid crystal display device includes polarizing plates opposite to each other. Each of the polarizing plates includes a transparent protective film formed by interposing an adhesive layer into both surfaces of a polyvinyl alcohol polarizer. A first transparent protective film of one side surface of the liquid crystal display is made of (mat) acrylate resin having an unsaturated carboxylic acid alkyl ester unit and a glutarimide unit indicated by general formula (1), contains (mat) acrylate resin having an imidization rate of 2.5-5.0 %, an acid value in a range of 0.10-0.50 mmol/g and an acrylic ester unit, which is less than 1 wt% and also has an ultraviolet ray absorbent. A second transparent protective film of the other side surface contains cellulose ester and is a phase difference plate satisfying a relation of nx > ny > nz. 액정 패널에 적용한 경우에도 표시 불균일이나 편광판의 휨, 황변을 억제할 수 있고, 또한 필름 제막시의 눌음도 방지 가능한 액정 표시 장치 및 편광판 키트를 제공한다. 대향하는 편광판을 구비하는 액정 표시 장치로서, 상기 편광판의 각각은, 폴리비닐알코올계 편광자의 양면에 접착제층을 개재하여 형성된 투명 보호 필름을 구비하고, 일방의 면의 제 1 투명 보호 필름은, 불포화 카르복실산알킬에스테르 단위 및 일반식 (1) 로 나타내는 글루타르이미드 단위를 갖는 (메트)아크릴계 수지로서, 이미드화율이 2.5 ∼ 5.0 %, 산가가 0.10 ∼ 0.50 m㏖/g 의 범위이고, 또한 아크릴산에스테르 단위가 1 중량% 미만인 (메트)아크릴계 수지를 함유하고, 또한 자외선 흡수제를 갖고, 타방의 면의 제 2 투명 보호 필름은, 셀룰로오스에스테르를 함유하여 이루어지고, 또한 nx > ny > nz 의 관계를 만족시키는 위상차판인 액정 표시 장치. [화학식 1]
Bibliography:Application Number: KR20160012216