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1. (WO2019049726) ADHESIVE COMPOSITION FOR ORGANIC EL DISPLAY DEVICES, ADHESIVE LAYER FOR ORGANIC EL DISPLAY DEVICES, POLARIZING FILM WITH ADHESIVE LAYER FOR ORGANIC EL DISPLAY DEVICES, AND ORGANIC EL DISPLAY DEVICE
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Pub. No.: WO/2019/049726 International Application No.: PCT/JP2018/031715
Publication Date: 14.03.2019 International Filing Date: 28.08.2018
IPC:
C09J 7/22 (2018.01) ,C09J 11/06 (2006.01) ,C09J 133/04 (2006.01) ,G02B 5/30 (2006.01) ,G06F 3/041 (2006.01) ,H01L 51/50 (2006.01) ,H05B 33/02 (2006.01)
[IPC code unknown for C09J 7/22]
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
04
Homopolymers or copolymers of esters
G PHYSICS
02
OPTICS
B
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
5
Optical elements other than lenses
30
Polarising elements
G PHYSICS
06
COMPUTING; CALCULATING; COUNTING
F
ELECTRIC DIGITAL DATA PROCESSING
3
Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
01
Input arrangements or combined input and output arrangements for interaction between user and computer
03
Arrangements for converting the position or the displacement of a member into a coded form
041
Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
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
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:
形見 普史 KATAMI,Hirofumi; JP
松本 真理 MATSUMOTO,Masamichi; JP
藤原 新 FUJIHARA,Arata; JP
野中 崇弘 NONAKA,Takahiro; JP
Agent:
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:
2017-17078106.09.2017JP
Title (EN) ADHESIVE COMPOSITION FOR ORGANIC EL DISPLAY DEVICES, ADHESIVE LAYER FOR ORGANIC EL DISPLAY DEVICES, POLARIZING FILM WITH ADHESIVE LAYER FOR ORGANIC EL DISPLAY DEVICES, AND ORGANIC EL DISPLAY DEVICE
(FR) COMPOSITION ADHÉSIVE POUR DISPOSITIFS D'AFFICHAGE EL ORGANIQUES, COUCHE ADHÉSIVE POUR DISPOSITIFS D'AFFICHAGE EL ORGANIQUES, FILM DE POLARISATION À COUCHE ADHÉSIVE POUR DISPOSITIFS D'AFFICHAGE EL ORGANIQUES, ET DISPOSITIFS D'AFFICHAGE EL ORGANIQUES
(JA) 有機EL表示装置用粘着剤組成物、有機EL表示装置用粘着剤層、有機EL表示装置用粘着剤層付き偏光フィルム、及び有機EL表示装置
Abstract:
(EN) The present invention is an adhesive layer for organic EL display devices, which is formed from an adhesive composition that contains a (meth)acrylic polymer and an ultraviolet absorbent, and wherein: the (meth)acrylic polymer contains an alkyl (meth)acrylate (A) that has an alkyl group having 8 or less carbon atoms and an alkyl (meth)acrylate (B) that has an alkyl group having 12-24 carbon atoms; the proportion (a) of the component (A) and the proportion (b) of the component (B) satisfy formula (1) 60 ≤ {(a) + (b)} and formula (2) 1.4 ≤ {(a)/(b)} ≤ 2; and the adhesive layer has a Tg of from -20°C to -5°C, a transmittance at a wavelength of 380 nm of 10% or less, a transmittance at a wavelength of 450 nm of 85% or more, a total light transmittance of 85% or more and a haze of 1% or less. An adhesive layer for organic EL display devices according to the present invention is capable of suppressing deterioration of an organic EL element, while having high transparency, low dielectric characteristics, and excellent peel resistance to drop impact.
(FR) La présente invention concerne une couche adhésive pour dispositifs d'affichage EL organiques, qui est formée à partir d'une composition adhésive qui contient un polymère (méth)acrylique et un absorbant d'ultraviolets, et dans laquelle : le polymère (méth)acrylique contient un (méth)acrylate d'alkyle (A) qui a un groupe alkyle de 8 atomes de carbone ou moins et un (méth)acrylate d'alkyle (B) qui a un groupe alkyle de 12 à 24 atomes de carbone ; la proportion (a) du composant (A) et la proportion (b) du composant (B) satisfont la formule (1) 60 ≤ {(a) + (b)} et la formule (2) 1,4 ≤ {(a)/(b)} ≤ 2 ; et la couche adhésive a une Tg de -20 à -5 °C, une transmittance à une longueur d'onde de 380 nm de 10 % ou moins, une transmittance à une longueur d'onde de 450 nm de 85 % ou plus, une transmittance de lumière totale de 85 % ou plus et un voile de 1 % ou moins. La couche adhésive pour dispositifs d'affichage EL organiques selon la présente invention est capable de supprimer la détérioration d'un élément EL organique, tout en étant douée d'une transparence élevée, de basses caractéristiques diélectriques et d'une excellente résistance au pelage à un impact de type chute.
(JA) 本発明は、(メタ)アクリル系ポリマー及び紫外線吸収剤を含有する粘着剤組成物から形成された有機EL表示装置用粘着剤層であって、前記(メタ)アクリル系ポリマーは、炭素数8以下のアルキル基を有するアルキル(メタ)アクリレート(A)及び炭素数12~24のアルキル基を有するアルキル(メタ)アクリレート(B)を含み、前記(A)の割合(a)及び前記(B)の割合(b)が、式(1): 60≦{(a)+(b)}、式(2): 1.4≦{(a)/(b)}≦2、を満足し、かつ、前記粘着剤層は、Tgが-20~-5℃であり、波長380nmの透過率が10%以下、波長450nmの透過率が85%以上であり、全光線透過率が85%以上、ヘイズが1%以下である。本発明の有機EL表示装置用粘着剤層は、有機EL素子の劣化を抑制することができ、かつ高い透明性を有し、低誘電特性を有し、かつ、落下衝撃時の剥がれ耐性に優れる。
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)