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1. (WO2018159917) SURFACE TREATMENT FILM FOR POLARIZATION PLATE, POLARIZATION PLATE COMPRISING SAME, AND IMAGE DISPLAY DEVICE

Pub. No.:    WO/2018/159917    International Application No.:    PCT/KR2017/012273
Publication Date: Sat Sep 08 01:59:59 CEST 2018 International Filing Date: Thu Nov 02 00:59:59 CET 2017
IPC: G02B 5/30
G02B 1/14
G02B 1/18
Applicants: DONGWOO FINE-CHEM CO., LTD.
동우화인켐 주식회사
Inventors: HEO, Ji Hye
허지혜
RYU, Hyun Sun
유현선
Title: SURFACE TREATMENT FILM FOR POLARIZATION PLATE, POLARIZATION PLATE COMPRISING SAME, AND IMAGE DISPLAY DEVICE
Abstract:
The present invention relates to a surface treatment film for a polarization plate and, more specifically, to a surface treatment film for a polarization plate, the surface treatment film comprising: a base film; and a surface treatment layer laminated on the base film, wherein the dynamic friction coefficient measured with respect to the surface treatment layer using steel wool is less than 0.2; and the martensite hardness measured by pressing in a surface of the surface treatment layer in a lamination direction using a nano-indenter is 180-200 N/mm2 at a push pressure of 1.5 mN and 200-220 N/mm2 at a push pressure of 0.1 mN, and thus the surface treatment film has excellent flexure characteristics and a remarkably low possibility of occurrence of stretches and discoloration and exhibits excellent hardness, leading to a remarkably reduced possibility of occurrence of cracks.