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1. WO2020003857 - SINGLE-SIDE-PROTECTED POLARIZATION FILM WITH ADHESIVE LAYER, IMAGE DISPLAY DEVICE, AND CONTINUOUS PRODUCTION METHOD THERFOR

Publication Number WO/2020/003857
Publication Date 02.01.2020
International Application No. PCT/JP2019/021065
International Filing Date 28.05.2019
IPC
G PHYSICS
02
OPTICS
B
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
5
Optical elements other than lenses
30
Polarising elements
[IPC code unknown for C09J 7/24]
[IPC code unknown for C09J 7/38]
C CHEMISTRY; METALLURGY
09
DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
J
ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
11
Features of adhesives not provided for in group C09J9/76
02
Non-macromolecular additives
06
organic
C CHEMISTRY; METALLURGY
09
DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
J
ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
133
Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Adhesives based on derivatives of such polymers
G PHYSICS
02
OPTICS
F
DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
1
Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
01
for the control of the intensity, phase, polarisation or colour
13
based on liquid crystals, e.g. single liquid crystal display cells
133
Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
1333
Constructional arrangements
1335
Structural association of optical devices, e.g. polarisers, reflectors, with the cell
G PHYSICS
09
EDUCATING; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
F
DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
9
Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
G PHYSICS
09
EDUCATING; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
F
DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
9
Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
30
in which the desired character or characters are formed by combining individual elements
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
L
SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
27
Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
28
including components using organic materials as the active part, or using a combination of organic materials with other materials as the active part
32
with components specially adapted for light emission, e.g. flat-panel displays using organic light-emitting diodes
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
L
SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
51
Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof
50
specially adapted for light emission, e.g. organic light emitting diodes (OLED) or polymer light emitting devices (PLED)
H ELECTRICITY
05
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
B
ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
33
Electroluminescent light sources
02
Details
G02B 5/30 (2006.01)
C09J 7/24 (2018.01)
C09J 7/38 (2018.01)
C09J 11/06 (2006.01)
C09J 133/00 (2006.01)
G02F 1/1335 (2006.01)
CPC
C09J 11/06
C09J 133/00
C09J 7/24
C09J 7/38
C09J 7/40
G02B 5/30
Applicants
  • 日東電工株式会社 NITTO DENKO CORPORATION [JP/JP]; 大阪府茨木市下穂積1丁目1番2号 1-1-2,Shimohozumi,Ibaraki-shi, Osaka 5678680, JP
Inventors
  • 藤田 雅人 FUJITA,Masato; JP
  • 森本 有 MORIMOTO,Yu; JP
  • 江原 卓 EHARA,Suguru; JP
  • 外山 雄祐 TOYAMA,Yusuke; JP
Agents
  • 特許業務法人 ユニアス国際特許事務所 UNIUS PATENT ATTORNEYS OFFICE; 大阪府大阪市淀川区西中島5丁目13-9 新大阪MTビル1号館2階 First Shin-Osaka MT Bldg. 2nd Floor, 5-13-9 Nishinakajima, Yodogawa-ku, Osaka-shi, Osaka 5320011, JP
Priority Data
2018-12120726.06.2018JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) SINGLE-SIDE-PROTECTED POLARIZATION FILM WITH ADHESIVE LAYER, IMAGE DISPLAY DEVICE, AND CONTINUOUS PRODUCTION METHOD THERFOR
(FR) FILM DE POLARISATION PROTÉGÉ D'UN SEUL CÔTÉ AVEC UNE COUCHE ADHÉSIVE, DISPOSITIF D'AFFICHAGE D'IMAGE ET PROCÉDÉ DE PRODUCTION CONTINU ASSOCIÉ
(JA) 粘着剤層付片保護偏光フィルム、画像表示装置およびその連続製造方法
Abstract
(EN)
The objective of the present invention is to provide a single-side-protected polarization film with an adhesive layer wherein the film has excellent initial rework ability, durability and electric conduction stability under a high-temperature and/or high-humidity environment and is also not readily released from a glass substrate, or the like, even when exposed to an environment in which dew condensation arises. This single-side-protected polarization film with an adhesive layer comprises: a single-side-protected polarization film having a protective film only on one surface of a polarizer; and an adhesive layer, directly or via a coating layer, on the polarizer side of the single-side-protected polarization film. The adhesive layer contains a (meth)acrylic polymer as a base polymer, has a weight change rate of 1.1% or greater, an adhesive force P0 of 10 N/25 mm or less prior to immersion in water, and an adhesive force P1 of 1.6 N/25 mm or more after immersion for two hours in water.
(FR)
L'objectif de la présente invention est de fournir un film de polarisation protégé d'un seul côté avec une couche adhésive, le film présentant une aptitude à une remise en état initial, une durabilité et une stabilité de conduction électrique excellentes dans un environnement à température élevée et/ou à humidité élevée et ne se détachant pas facilement d'un substrat de verre, ou similaire, même lorsqu'il est exposé à un environnement dans lequel se produit la condensation de rosée. Ce film de polarisation protégé d'un seul côté avec une couche adhésive comprend : un film de polarisation protégé d'un seul côté ayant un film protecteur sur une seule surface d'un polariseur ; et une couche adhésive, directement ou par l'intermédiaire d'une couche de revêtement, sur le côté polariseur du film de polarisation protégé sur un seul côté. La couche adhésive contient un polymère (méth)acrylique en tant que polymère de base, a un taux de changement de poids de 1,1 % ou plus, une force adhésive P0 de 10 N/25 mm ou moins avant immersion dans l'eau, et une force adhésive P1 de 1,6 N/25 mm ou plus après immersion pendant deux heures dans l'eau.
(JA)
本発明は、初期のリワーク性、並びに高温及び/又は高湿環境下における耐久性及び導電安定性に優れており、さらに結露が生じる環境下に曝された場合でもガラス基板等から剥がれ難い粘着剤層付片保護偏光フィルムを提供することを目的とする。本発明の粘着剤層付片保護偏光フィルムは、偏光子の片面にのみ保護フィルムを有する片保護偏光フィルムおよび前記片保護偏光フィルムの偏光子側に直接またはコーティング層を介して粘着剤層を有しており、前記粘着剤層は、ベースポリマーとして(メタ)アクリル系ポリマーを含有し、重量変化率が1.1%以上であり、水中に浸漬前の粘着力Pが10N/25mm以下であり、かつ水中に2時間浸漬した後の粘着力Pが1.6N/25mm以上である。
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