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1. WO2020138879 - POLARIZING PLATE AND LIQUID CRYSTAL DISPLAY DEVICE INCLUDING SAME

Publication Number WO/2020/138879
Publication Date 02.07.2020
International Application No. PCT/KR2019/018276
International Filing Date 23.12.2019
IPC
G02B 5/30 2006.1
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
5Optical elements other than lenses
30Polarising elements
G02B 1/04 2006.1
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
1Optical elements characterised by the material of which they are made; Optical coatings for optical elements
04made of organic materials, e.g. plastics
G02B 1/10 2006.1
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
1Optical elements characterised by the material of which they are made; Optical coatings for optical elements
10Optical coatings produced by application to, or surface treatment of, optical elements
CPC
G02B 1/04
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
1Optical elements characterised by the material of which they are made
04made of organic materials, e.g. plastics
G02B 1/10
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
1Optical elements characterised by the material of which they are made
10Optical coatings produced by application to, or surface treatment of, optical elements
G02B 5/30
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
5Optical elements other than lenses
30Polarising elements
Applicants
  • 삼성에스디아이 주식회사 SAMSUNG SDI CO., LTD. [KR]/[KR]
Inventors
  • 구준모 KOO, Jun Mo
  • 유정훈 YOU, Jung Hun
  • 이상흠 LEE, Sang Hum
  • 신동윤 SHIN, Dong Yoon
Agents
  • 특허법인 아주 AJU INTERNATIONAL LAW & PATENT GROUP
Priority Data
10-2018-017133927.12.2018KR
Publication Language Korean (KO)
Filing Language Korean (KO)
Designated States
Title
(EN) POLARIZING PLATE AND LIQUID CRYSTAL DISPLAY DEVICE INCLUDING SAME
(FR) PLAQUE POLARISANTE ET DISPOSITIF D'AFFICHAGE À CRISTAUX LIQUIDES LA COMPRENANT
(KO) 편광판 및 이를 포함하는 액정표시장치
Abstract
(EN)
The present invention provides a polarizing plate and a liquid crystal display device comprising same, the polarizing plate comprising: a polarizer; and a first retardation layer and a second retardation layer formed on one surface of the polarizer, wherein the first retardation layer has a thickness direction retardation (Rth) of about -75 nm to about -130 nm at a wavelength of about 550 nm, the second retardation layer satisfies equations 1 and 2, a laminated body of the first retardation layer and the second retardation layer has a thickness direction retardation (Rth) of about -70 nm to about 0 nm at a wavelength of about 550 nm, and the first retardation layer includes a coating layer formed of a composition containing a cellulose ester-based compound.
(FR)
La présente invention concerne une plaque polarisante et un dispositif d'affichage à cristaux liquides la comprenant, la plaque polarisante comprenant : un polariseur ; et une première couche de retard et une seconde couche de retard formées sur une surface du polariseur, la première couche de retard ayant un retard de direction d'épaisseur (Rth) d'environ -75 nm à environ -130 nm à une longueur d'onde d'environ 550 nm, la seconde couche de retard satisfaisant les équations 1 et 2, un corps stratifié de la première couche de retard et de la seconde couche de retard ayant un retard de direction d'épaisseur (Rth) d'environ -70 nm à environ 0 nm à une longueur d'onde d'environ 550 nm, et la première couche de retard comprenant une couche de revêtement formée d'une composition contenant un composé à base d'ester de cellulose.
(KO)
편광자 및 상기 편광자의 일면에 형성된 제1위상차층과 제2위상차층을 포함하는 편광판으로서, 상기 제1위상차층은 파장 약 550nm에서 두께 방향 위상차(Rth)가 약 -75nm 내지 약 -130nm이고, 상기 제2위상차층은 식 1과 식 2를 만족하고, 상기 제1위상차층과 상기 제2위상차층의 적층체는 파장 약 550nm에서 두께 방향 위상차(Rth)가 약 -70nm 내지 약 0nm이고, 상기 제1위상차층은 셀룰로스 에스테르계 화합물을 포함하는 조성물로 형성된 코팅층을 포함하는 것인, 편광판 및 이를 포함하는 액정표시장치가 제공된다.
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