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1. (WO2018004172) POLARIZATION PLATE AND LIQUID CRYSTAL DISPLAY DEVICE COMPRISING SAME
Latest bibliographic data on file with the International Bureau    Submit observation

Pub. No.:    WO/2018/004172    International Application No.:    PCT/KR2017/006444
Publication Date: 04.01.2018 International Filing Date: 20.06.2017
IPC:
G02B 5/30 (2006.01), G02B 1/14, C09D 133/10 (2006.01), C09D 133/08 (2006.01), G02F 1/1335 (2006.01)
Applicants: DONGWOO FINE-CHEM CO., LTD. [KR/KR]; 132, Yakchon-ro, Iksan-si, Jeollabuk-do 54631 (KR)
Inventors: JUNG, Kyoungmoon; (KR).
LEE, Won Bum; (KR).
HUH, Yoonho; (KR)
Agent: YU, Su Mi; (KR)
Priority Data:
10-2016-0080062 27.06.2016 KR
Title (EN) POLARIZATION PLATE AND LIQUID CRYSTAL DISPLAY DEVICE COMPRISING SAME
(FR) PLAQUE DE POLARISATION ET DISPOSITIF D'AFFICHAGE À CRISTAUX LIQUIDES LA COMPRENANT
(KO) 편광판 및 이를 포함하는 액정표시장치
Abstract: front page image
(EN)The present invention relates to a polarization plate and a liquid crystal display device comprising the same, the polarization plate comprising: a polarizer; and a protective coating layer formed on at least one surface of the polarizer, wherein the protective coating layer is formed of a composition for forming a protective coating layer, the composition containing: an acrylic copolymer having a Tg of 90°C or greater and a weight average molecular weight of 50,000-1,500,000; and a cross-linking agent, the acrylic copolymer containing 50-99.5 parts by weight of at least one high-Tg monomer selected from (meth)acrylates and vinyl monomers, which have a Tg of 100°C or higher, 0-45 parts by weight of at least one low-Tg monomer selected from (meth)acrylates and vinyl monomers, which have a Tg of equal to or higher than 50°C and lower than 100°C, and 0.5-20 parts by weight of a cross-linkable monomer having a substituent selected from a hydroxyl group, a carboxyl group, and an amine group. The polarization plate according to the present invention can provide a polarizer protective effect through excellent durability and adhesive strength, and can be thinner and lighter without using an adhesive layer.
(FR)La présente invention concerne une plaque de polarisation et un dispositif d'affichage à cristaux liquides la comprenant, la plaque de polarisation comprenant : un polariseur; et une couche de revêtement de protection formée sur au moins une surface du polariseur, la couche de revêtement de protection étant formée d'une composition pour former une couche de revêtement de protection, la composition contenant : un copolymère acrylique ayant une Tg de 90 °C ou plus et un poids moléculaire moyen en poids de 50 000 à 1 500 000; et un agent de réticulation, le copolymère acrylique contenant 50 à 99,5 parties en poids d'au moins un monomère à Tg élevée choisi parmi methacrylates et des monomères vinyliques, qui ont une Tg de 100 °C ou plus, 0 à 45 parties en poids d'au moins un monomère à basse Tg choisi parmi methacrylates et des monomères vinyliques, ayant une Tg égale ou supérieure à 50 °C et inférieure à 100 °C, et de 0,5 à 20 parties en poids d'un monomère réticulable ayant un substituant choisi parmi un groupe hydroxyle, un groupe carboxyle et un groupe amine. La plaque de polarisation selon la présente invention peut fournir un effet protecteur de polariseur grâce à une excellente durabilité et la force d'adhérence, et peut être plus mince et plus légère sans utiliser de couche adhésive.
(KO)본 발명은 편광자; 및 상기 편광자의 적어도 일면에 형성된 보호코팅층을 포함하는 편광판으로서, 상기 보호코팅층은, Tg가 90℃ 이상이며, 중량평균분자량은 5만 내지 150만인 아크릴계 공중합체; 및 가교제를 포함하는 보호코팅층 형성용 조성물로부터 형성되고, 상기 아크릴계 공중합체는 Tg가 100℃ 이상인 (메타)아크릴레이트 및 비닐 모노머로부터 선택되는 하나 이상의 고 Tg 모노머 50 내지 99.5 중량부, Tg가 50℃ 이상 100℃ 미만인 (메타)아크릴레이트 및 비닐 모노머로부터 선택되는 하나 이상의 저 Tg 모노머 0 내지 45 중량부, 및 히드록실기, 카르복실기 및 아민기로부터 선택되는 치환기를 가지는 가교성 모노머 0.5 내지 20 중량부를 포함하는 편광판 및 이를 포함하는 액정표시장치를 제공한다. 본 발명에 따른 편광판은 우수한 내구성과 밀착력으로 편광자 보호 효과를 제공할 수 있으며, 접착제층의 사용 없이 박막 경량화할 수 있다.
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG).
Publication Language: Korean (KO)
Filing Language: Korean (KO)