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1. (WO2017183921) POLARIZING PLATE AND IMAGE DISPLAY DEVICE INCLUDING SAME

Pub. No.:    WO/2017/183921    International Application No.:    PCT/KR2017/004233
Publication Date: Fri Oct 27 01:59:59 CEST 2017 International Filing Date: Fri Apr 21 01:59:59 CEST 2017
IPC: G02B 5/30
G02B 1/14
C08L 31/04
C08L 29/04
Applicants: DONGWOO FINE-CHEM CO., LTD.
동우화인켐 주식회사
Inventors: JUNG, Kyoung Moon
정경문
PARK, Jin Young
박진영
Title: POLARIZING PLATE AND IMAGE DISPLAY DEVICE INCLUDING SAME
Abstract:
The present invention relates to a polarizing plate and an image display device including the same and, more specifically, to a polarizing plate and an image display device including the same, wherein the polarizing plate comprises a polyvinyl alcohol-based polarizer and a protection substrate, which is positioned on at least one surface of the polarizer and includes a polyvinyl acetate-based resin and a cellulose-based resin. Accordingly, the polarizing plate allows a display device including the same to be weight-reduced in a form of a thin film. Further, a small physical property difference between the polarizer and a coating layer allows the polarizing plate to prevent a problem of deterioration of an optical characteristic according to a refractive index difference, etc. and problems, such as a flexion and a crack which may occur when the polarizing plate is cut or exposed to a severe environment. In addition, the polarizing plate includes the protection substrate having an excellent tensile strength and thus allows axis-twisting of the polarizer due to the contraction of the polarizer to be controlled so as to prevent problems, such as a curl and deterioration of polarizability.