Polarizing plate, polarizing plate-carrier film laminate, method for preparing polarizing plate-carrier film laminate, method for preparing polarizing plate and active energy ray curable composition

An active energy ray, polarizing plate technology, applied in chemical instruments and methods, applications, coatings, etc., can solve problems such as tearing of polarizers, and achieve the effects of improving bonding strength, improving workability, and inhibiting blocking phenomenon

Active Publication Date: 2020-07-28
SHANJIN OPTOELECTRONICS SUZHOU CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, when a protective film is directly formed on an existing stretched polyvinyl alcohol-based polarizer compared to the case of conventionally applying a protective base material on both surfaces, it is difficult to solve the problem due to The problem of tearing of the polarizer due to the stress caused by the shrinkage of the polarizer at high temperature

Method used

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  • Polarizing plate, polarizing plate-carrier film laminate, method for preparing polarizing plate-carrier film laminate, method for preparing polarizing plate and active energy ray curable composition
  • Polarizing plate, polarizing plate-carrier film laminate, method for preparing polarizing plate-carrier film laminate, method for preparing polarizing plate and active energy ray curable composition
  • Polarizing plate, polarizing plate-carrier film laminate, method for preparing polarizing plate-carrier film laminate, method for preparing polarizing plate and active energy ray curable composition

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preparation example Construction

[0207] The preparation of the carrier film may also include providing a primer layer on one or both surfaces of the carrier film by applying and drying the water-dispersible primer composition on one or both surfaces of the carrier film on the carrier film .

[0208] In the method for manufacturing a polarizing plate according to an exemplary embodiment of the present specification, the film supply process includes: supplying the carrier film 200 on one surface of the polarizer 100; Protective film 300. Specifically, the method may be performed as a method of supplying the carrier film 200 on one surface of the polarizer 100 and simultaneously supplying the protective film 300 on the other surface of the polarizer 100 .

[0209] A method of supplying the polarizer 100, the carrier film 200, and the protective film 300 may be performed by using a method known in the art. For example, a polarizer, a carrier film, and a protective film may be supplied in a form in which each fi...

Embodiment approach

[0276] Hereinafter, the specification will be described in more detail through examples. However, the following examples are provided to illustrate the present specification, and the scope of the present specification is not limited thereby.

preparation example 1

[0279] (1) Preparation Example 1: Production of Photocurable Composition A for Forming a Protective Layer

[0280] Based on 100 parts by weight of 3,4-epoxycyclohexylmethyl-3',4'-epoxycyclohexane carboxylate (which is an epoxy compound without an aromatic ring) 18 parts by weight of bis Phenol F type epoxy compound (trade name YDF-170), 3-ethyl-3-[(3-ethyl oxetane-3-yl) methoxymethyl] oxygen heterocycle of 54 parts by weight Butane (Aron Oxetane OXT-221 manufactured by Toagosei Co., Ltd.), which is an oxetane compound, and 9 parts by weight of polycaprolactone triol (trade name PLACCEL 305) were mixed to produce a composition . The active energy ray curable composition A is produced by mixing 2 to 3 parts by weight of Irgacure 250 as a photoinitiator and 1 part by weight of ESACURE ITX as a photosensitizer based on 100 parts by weight of the composition. In this case, the active energy ray-curable composition A had a viscosity of 100 cps at 25°C.

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Abstract

The present specification provides a polarizing plate, a polarizing plate-carrier film laminate, a method for preparing the polarizing plate-carrier film laminate, a method for preparing the polarizing plate by means of same and an active energy ray curable composition for a polarizing plate protection layer.

Description

technical field [0001] This application claims priority and benefit from Korean Patent Application No. 10-2017-0173268 filed with the Korean Intellectual Property Office on December 15, 2017, the entire contents of which are incorporated herein by reference. [0002] The present specification is intended to provide a polarizing plate, a polarizing plate-carrier film laminate, a method for manufacturing a polarizing plate-carrier film laminate, a method for manufacturing a polarizing plate, and an active energy ray-curable composition. Background technique [0003] Existing polarizing plates for liquid crystal display devices have a configuration in which a general polyvinyl alcohol-based polarizer is used, and a protective film such as PET is attached to at least one surface of the polarizer. [0004] Recently, due to the increasing demand for low light leakage and thinning in the polarizing plate market, in order to satisfy these physical characteristics, methods of directl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/38G02B5/30B32B7/12B32B27/08B32B27/30B32B37/12B32B37/10
CPCB32B7/12B32B27/08B32B37/10B32B37/12G02B5/30B32B27/306B32B2307/732B32B2307/30B32B27/36B32B2255/10B32B2255/24B32B2255/26B32B2551/00B32B2457/20B32B2307/40B32B2307/748B32B27/38G02B5/3033G02B1/18B32B7/023B32B27/18B32B37/1284B32B2305/72B32B2307/42G02B5/305G02F1/133528B32B38/10B32B2037/243
Inventor 李美昭权润京金镇佑金东旭
Owner SHANJIN OPTOELECTRONICS SUZHOU CO LTD
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