KR20170105925A - Adhesive composition, polarizing plate and display device using the same - Google Patents
Adhesive composition, polarizing plate and display device using the same Download PDFInfo
- Publication number
- KR20170105925A KR20170105925A KR1020160029309A KR20160029309A KR20170105925A KR 20170105925 A KR20170105925 A KR 20170105925A KR 1020160029309 A KR1020160029309 A KR 1020160029309A KR 20160029309 A KR20160029309 A KR 20160029309A KR 20170105925 A KR20170105925 A KR 20170105925A
- Authority
- KR
- South Korea
- Prior art keywords
- polarizer
- adhesive layer
- laminated
- protective film
- polarizing plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000853 adhesive Substances 0.000 title claims abstract description 38
- 230000001070 adhesive effect Effects 0.000 title claims abstract description 38
- 239000000203 mixture Substances 0.000 title claims abstract description 32
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- -1 hydroxybenzophenone compound Chemical class 0.000 claims description 50
- 239000012790 adhesive layer Substances 0.000 claims description 47
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- 239000000178 monomer Substances 0.000 claims description 28
- 239000010410 layer Substances 0.000 claims description 25
- 239000004820 Pressure-sensitive adhesive Substances 0.000 claims description 23
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- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
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- 229910019142 PO4 Inorganic materials 0.000 description 1
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- 239000004743 Polypropylene Substances 0.000 description 1
- 239000006087 Silane Coupling Agent Substances 0.000 description 1
- ZJCCRDAZUWHFQH-UHFFFAOYSA-N Trimethylolpropane Chemical compound CCC(CO)(CO)CO ZJCCRDAZUWHFQH-UHFFFAOYSA-N 0.000 description 1
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- 239000002216 antistatic agent Substances 0.000 description 1
- RRFQCEWDBIZSDW-UHFFFAOYSA-N benzenediazonium fluoro(dioxido)borane Chemical compound [O-]B([O-])F.[O-]B([O-])F.[O-]B([O-])F.[O-]B([O-])F.[O-]B([O-])F.[O-]B([O-])F.N#[N+]C1=CC=CC=C1.N#[N+]C1=CC=CC=C1.N#[N+]C1=CC=CC=C1.N#[N+]C1=CC=CC=C1.N#[N+]C1=CC=CC=C1.N#[N+]C1=CC=CC=C1.N#[N+]C1=CC=CC=C1.N#[N+]C1=CC=CC=C1.N#[N+]C1=CC=CC=C1.N#[N+]C1=CC=CC=C1.N#[N+]C1=CC=CC=C1.N#[N+]C1=CC=CC=C1 RRFQCEWDBIZSDW-UHFFFAOYSA-N 0.000 description 1
- 230000001588 bifunctional effect Effects 0.000 description 1
- DJUWPHRCMMMSCV-UHFFFAOYSA-N bis(7-oxabicyclo[4.1.0]heptan-4-ylmethyl) hexanedioate Chemical compound C1CC2OC2CC1COC(=O)CCCCC(=O)OCC1CC2OC2CC1 DJUWPHRCMMMSCV-UHFFFAOYSA-N 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- CDQSJQSWAWPGKG-UHFFFAOYSA-N butane-1,1-diol Chemical compound CCCC(O)O CDQSJQSWAWPGKG-UHFFFAOYSA-N 0.000 description 1
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 238000012663 cationic photopolymerization Methods 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 239000012461 cellulose resin Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 239000003431 cross linking reagent Substances 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 229920005994 diacetyl cellulose Polymers 0.000 description 1
- 125000004386 diacrylate group Chemical group 0.000 description 1
- 239000012954 diazonium Substances 0.000 description 1
- BQQUFAMSJAKLNB-UHFFFAOYSA-N dicyclopentadiene diepoxide Chemical compound C12C(C3OC33)CC3C2CC2C1O2 BQQUFAMSJAKLNB-UHFFFAOYSA-N 0.000 description 1
- 229940105990 diglycerin Drugs 0.000 description 1
- GPLRAVKSCUXZTP-UHFFFAOYSA-N diglycerol Chemical compound OCC(O)COCC(O)CO GPLRAVKSCUXZTP-UHFFFAOYSA-N 0.000 description 1
- GYZLOYUZLJXAJU-UHFFFAOYSA-N diglycidyl ether Chemical compound C1OC1COCC1CO1 GYZLOYUZLJXAJU-UHFFFAOYSA-N 0.000 description 1
- 239000000539 dimer Substances 0.000 description 1
- OZLBDYMWFAHSOQ-UHFFFAOYSA-N diphenyliodanium Chemical compound C=1C=CC=CC=1[I+]C1=CC=CC=C1 OZLBDYMWFAHSOQ-UHFFFAOYSA-N 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- UHESRSKEBRADOO-UHFFFAOYSA-N ethyl carbamate;prop-2-enoic acid Chemical compound OC(=O)C=C.CCOC(N)=O UHESRSKEBRADOO-UHFFFAOYSA-N 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 235000019256 formaldehyde Nutrition 0.000 description 1
- CKFGINPQOCXMAZ-UHFFFAOYSA-N formaldehyde hydrate Natural products OCO CKFGINPQOCXMAZ-UHFFFAOYSA-N 0.000 description 1
- MGJURKDLIJVDEO-UHFFFAOYSA-N formaldehyde;hydrate Chemical compound O.O=C MGJURKDLIJVDEO-UHFFFAOYSA-N 0.000 description 1
- 125000003055 glycidyl group Chemical group C(C1CO1)* 0.000 description 1
- XXMIOPMDWAUFGU-UHFFFAOYSA-N hexane-1,6-diol Chemical compound OCCCCCCO XXMIOPMDWAUFGU-UHFFFAOYSA-N 0.000 description 1
- 229920001519 homopolymer Polymers 0.000 description 1
- 229920001477 hydrophilic polymer Polymers 0.000 description 1
- PNDPGZBMCMUPRI-UHFFFAOYSA-N iodine Chemical compound II PNDPGZBMCMUPRI-UHFFFAOYSA-N 0.000 description 1
- 239000011630 iodine Substances 0.000 description 1
- 229910052740 iodine Inorganic materials 0.000 description 1
- 229940077844 iodine / potassium iodide Drugs 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910001507 metal halide Inorganic materials 0.000 description 1
- 150000005309 metal halides Chemical class 0.000 description 1
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 description 1
- HRDXJKGNWSUIBT-UHFFFAOYSA-N methoxybenzene Chemical group [CH2]OC1=CC=CC=C1 HRDXJKGNWSUIBT-UHFFFAOYSA-N 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 125000003518 norbornenyl group Chemical group C12(C=CC(CC1)C2)* 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 125000005440 p-toluyl group Chemical group [H]C1=C([H])C(=C([H])C([H])=C1C(*)=O)C([H])([H])[H] 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- HPAFOABSQZMTHE-UHFFFAOYSA-N phenyl-(2,4,6-trimethylphenyl)methanone Chemical compound CC1=CC(C)=CC(C)=C1C(=O)C1=CC=CC=C1 HPAFOABSQZMTHE-UHFFFAOYSA-N 0.000 description 1
- LYXOWKPVTCPORE-UHFFFAOYSA-N phenyl-(4-phenylphenyl)methanone Chemical compound C=1C=C(C=2C=CC=CC=2)C=CC=1C(=O)C1=CC=CC=C1 LYXOWKPVTCPORE-UHFFFAOYSA-N 0.000 description 1
- 235000021317 phosphate Nutrition 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920001483 poly(ethyl methacrylate) polymer Polymers 0.000 description 1
- 229920003207 poly(ethylene-2,6-naphthalate) Polymers 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 229920001707 polybutylene terephthalate Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000011112 polyethylene naphthalate Substances 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000002250 progressing effect Effects 0.000 description 1
- FBCQUCJYYPMKRO-UHFFFAOYSA-N prop-2-enyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OCC=C FBCQUCJYYPMKRO-UHFFFAOYSA-N 0.000 description 1
- 235000019260 propionic acid Nutrition 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 238000010186 staining Methods 0.000 description 1
- 125000004079 stearyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 150000003460 sulfonic acids Chemical class 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 239000002335 surface treatment layer Substances 0.000 description 1
- YRHRIQCWCFGUEQ-UHFFFAOYSA-N thioxanthen-9-one Chemical compound C1=CC=C2C(=O)C3=CC=CC=C3SC2=C1 YRHRIQCWCFGUEQ-UHFFFAOYSA-N 0.000 description 1
- 150000003918 triazines Chemical class 0.000 description 1
- 125000003866 trichloromethyl group Chemical group ClC(Cl)(Cl)* 0.000 description 1
- ZIBGPFATKBEMQZ-UHFFFAOYSA-N triethylene glycol Chemical compound OCCOCCOCCO ZIBGPFATKBEMQZ-UHFFFAOYSA-N 0.000 description 1
- WLOQLWBIJZDHET-UHFFFAOYSA-N triphenylsulfonium Chemical compound C1=CC=CC=C1[S+](C=1C=CC=CC=1)C1=CC=CC=C1 WLOQLWBIJZDHET-UHFFFAOYSA-N 0.000 description 1
- 239000012953 triphenylsulfonium Substances 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
- 150000003738 xylenes Chemical class 0.000 description 1
- 238000004383 yellowing Methods 0.000 description 1
- PAPBSGBWRJIAAV-UHFFFAOYSA-N ε-Caprolactone Chemical compound O=C1CCCCCO1 PAPBSGBWRJIAAV-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J4/00—Adhesives based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; adhesives, based on monomers of macromolecular compounds of groups C09J183/00 - C09J183/16
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/30—Polarising elements
- G02B5/3025—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state
- G02B5/3033—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid
- G02B5/3041—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid comprising multiple thin layers, e.g. multilayer stacks
-
- H01L51/5293—
Landscapes
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Polarising Elements (AREA)
Abstract
Description
본 발명은 접착제 조성물, 이를 이용한 편광판 및 표시장치에 관한 것이다.The present invention relates to an adhesive composition, a polarizing plate using the same, and a display device.
일반적으로 편광판은 편광자와 상기 편광자의 적어도 일면에 접합된 보호필름으로 이루어진다.Generally, the polarizing plate comprises a polarizer and a protective film bonded to at least one surface of the polarizer.
편광자는, 일반적으로 폴리비닐알코올계 필름과 요오드 등의 2 색성 재료로 염색한 후, 가교제를 이용하여 가교하고, 연신하여 얻어진다. 편광자는 연신에 의해 제작되기 때문에 수축되기 쉽다. 또 폴리비닐알코올계 필름은 친수성 폴리머를 사용하기 때문에 특히 가습열 조건하에서는 변형되기가 매우 쉽다. 또한 필름 자체의 기계적 강도가 약한 문제가 있다. The polarizer is generally obtained by dying with a dichromatic material such as a polyvinyl alcohol-based film and iodine, then crosslinking using a crosslinking agent, and stretching. Since the polarizer is produced by stretching, it is likely to shrink. Further, since the polyvinyl alcohol film uses a hydrophilic polymer, it is very easy to be deformed under humidified heat conditions. Further, there is a problem that the mechanical strength of the film itself is weak.
그 때문에, 편광자의 양면 또는 어느 한 면에 투명한 보호필름을 접착하여 강도를 보충한 편광판이 이용되고 있다. 이러한 편광판은 편광자와 투명 보호필름을 접착제에 의해 접합함으로써 제조된다.Therefore, a polarizing plate in which a transparent protective film is adhered to both sides or one side of the polarizer to supplement the strength is used. Such a polarizing plate is manufactured by bonding a polarizer and a transparent protective film by an adhesive.
한편, 유기발광다이오드(OLED) 디스플레이 장치는 형광성 유기화합물을 전기적으로 여기시켜 발광시키는 자기발광형 디스플레이 장치이다. 이러한 디스플레이 장치는 낮은 전압에서 구동이 가능하고, 박형 등의 장점이 있다. 또한, 광시야각, 빠른 응답속도 등 액정표시장치에서 문제로 지적되는 단점을 해결할 수 있어 최근 주목받고 있다 (대한민국 공개특허 10-2013-0072048).Meanwhile, an organic light emitting diode (OLED) display device is a self-luminous display device that electrically excites a fluorescent organic compound to emit light. Such a display device can be driven at a low voltage and has advantages such as thinness. In addition, it has recently attracted attention (Korean Patent Laid-Open Publication No. 10-2013-0072048) because it can solve the disadvantage pointed out as a problem in a liquid crystal display device such as a wide viewing angle and a fast response speed.
유기발광다이오드 디스플레이 장치는 일반적으로 유리기판, 상기 유리기판 상에 형성되는 유기전계 발광부, 상기 유기전계 발광부를 감싸 보호하는 보호캡, 상기 보호캡에 설치되는 흡습제와, 상기 유리기판의 일면에 설치되는 편광판을 포함한다. 편광판은 외부 빛에 의해 유리가 반사되는 것을 줄이기 위해 유리 기판 면에 부착되는데, 장파장 자외선에 의해 편광판의 특성이 쉽게 변화됨에 따라 장파장 자외선에 의해 편광판의 특성이 변화되는 것을 방지하고자 하는 연구들이 최근 활발히 진행되고 있다.The organic light emitting diode display device generally includes a glass substrate, an organic electroluminescent portion formed on the glass substrate, a protective cap covering and protecting the organic electroluminescent portion, a moisture absorbent provided on the protective cap, And a polarizing plate. The polarizer is attached to the surface of the glass substrate to reduce the reflection of the glass by the external light. Recently, studies have been actively carried out to prevent the characteristics of the polarizer from being changed by the long wavelength ultraviolet rays due to the characteristics of the polarizer being easily changed by the long wavelength ultraviolet It is progressing.
본 발명은 자외선에 의해 편광판의 특성이 변화되는 것을 방지하고자 한 것으로, 접착제 조성물, 및 이를 이용한 편광판 및 표시장치를 제공하는 것을 목적으로 한다.
An object of the present invention is to provide an adhesive composition and a polarizing plate and a display using the same, which are intended to prevent the characteristics of the polarizing plate from being changed by ultraviolet rays.
본 발명은 아크릴 단량체 및 에폭시 단량체로 구성된 군으로부터 선택된 1종 이상의 광중합성 단량체, 광중합 개시제, 및 자외선 흡수제를 포함하는 접착제 조성물을 제공한다.The present invention provides an adhesive composition comprising at least one photopolymerizable monomer selected from the group consisting of acrylic monomers and epoxy monomers, a photopolymerization initiator, and an ultraviolet absorber.
일 구현예는 자외선 흡수제가 전체 조성물의 중량을 기준으로 0.001 내지 10 중량%로 포함되는 것일 수 있다.In one embodiment, the ultraviolet absorber may be included in an amount of 0.001 to 10% by weight based on the weight of the total composition.
다른 일 구현예는 자외선 흡수제는 장파장 자외선을 흡수하는 것일 수 있다.In another embodiment, the ultraviolet absorber may be one that absorbs long wavelength ultraviolet radiation.
또 다른 일 구현예는 자외선 흡수제가 하이드록시벤조페논(Hydrozxybenzophenone)계 화합물; 하이드록시페닐벤조트리아졸(Hydroxyphenylbenzotriazole)계 화합물; 힌더드 아민(hindered amines)계 화합물; 철, 니켈, 및 코발트로 이루어진 군에서 선택되는 1종의 금속을 포함하는 유기 금속 화합물; 살리실레이트(Salicylate)계 화합물; 시나메이트(Cinnamate) 유도체; 레조치놀 모노벤조에이트(Resorcinol monobenzoates)계 화합물; 옥사닐라이드(Oxanilides)계 화합물; 하이드록시 벤조에이트(hydroxybenzoates)계 화합물; 유기 또는 무기 안료(pigment); 카본블랙; 쿠마린계 화합물(coumarines); 스틸벤유도체; 벤즈옥사졸릴계 화합물; 벤즈이미다졸릴계 화합물; 나프틸이미드계 화합물; 디아미노스틸벤설포네이트계 화합물; 트리아진스틸벤계 화합물; 페닐에스테르계 화합물; 벤조트리아졸계 화합물; 및 S-트리아진계 화합물로 이루어진 군으로부터 선택되는 1종 이상을 포함하는 것일 수 있다.
In another embodiment, the ultraviolet absorber is a hydroxybenzophenone-based compound; Hydroxyphenylbenzotriazole-based compounds; Hindered amines based compounds; An organometallic compound including one kind of metal selected from the group consisting of iron, nickel, and cobalt; Salicylate-based compounds; Cinnamate derivatives; Resorcinol monobenzoates based compounds; Oxanilides-based compounds; Hydroxybenzoates-based compounds; Organic or inorganic pigments; Carbon black; Coumarines; Stilbene derivatives; Benzoxazolyl-based compounds; Benzimidazolyl-based compounds; A naphthyl imide compound; Diaminostilbene sulfonate-based compounds; Triazine stilbene compounds; Phenyl ester compounds; Benzotriazole-based compounds; And an S-triazine-based compound.
또한, 본 발명은 유기발광다이오드 디스플레이용 편광판을 제공한다.The present invention also provides a polarizing plate for an organic light emitting diode display.
일 구현예는 편광판이 편광자, 상기 편광자의 상부에 적층된 접착제층, 상기 접착제층 상부에 적층된 편광자용 보호필름, 및 상기 편광자의 하부에 위치한 1개 이상의 위상차 필름을 포함하며, 상기 접착제층은 상기 접착제 조성물을 포함하는 것일 수 있다.In one embodiment, the polarizing plate comprises a polarizer, an adhesive layer laminated on top of the polarizer, a protective film for a polarizer laminated on the adhesive layer, and at least one retardation film underlying the polarizer, And may include the above adhesive composition.
다른 일 구현예는 편광판이 편광자, 상기 편광자의 상부에 적층된 제1 접착제층, 상기 제1 접착제층 상부에 적층된 제1 편광자용 보호필름, 및 상기 편광자의 하부에 위치한 1개 이상의 위상차 필름을 포함하며, 상기 편광자와 상기 편광자로부터 인접한 위상차 필름 사이에 제2 편광자용 보호필름이 위치하고 있고, 상기 편광자의 하부에는 제2 접착제층이 적층되어 있으며, 상기 제2 접착제층의 하부에는 제2 편광자용 보호필름이 적층되어 있고, 상기 제1 접착제층 및 제2 접착제층은 상기 접착제 조성물을 포함하는 것일 수 있다.In another embodiment, the polarizing plate includes a polarizer, a first adhesive layer laminated on the polarizer, a first polarizer protective film laminated on the first adhesive layer, and at least one retardation film disposed below the polarizer, And a second adhesive layer is laminated on the lower portion of the polarizer, and a second adhesive layer is formed on the lower portion of the second adhesive layer, for the second polarizer, and a second polarizer protective film is disposed between the polarizer and the polarizer, A protective film is laminated on the first adhesive layer and the second adhesive layer may include the adhesive composition.
또 다른 일 구현예는 편광판이 편광자, 상기 편광자의 상부에 적층된 접착제층, 상기 접착제층 상부에 적층된 편광자용 보호필름, 상기 편광자의 하부에 적층된 점착제층, 및 상기 점착제층 하부에 적층된 위상차 필름을 포함하는 것일 수 있다.In another embodiment, the polarizing plate includes a polarizer, an adhesive layer laminated on the polarizer, a polarizer protective film laminated on the adhesive layer, a pressure-sensitive adhesive layer laminated on the lower portion of the polarizer, And may include a retardation film.
또 다른 일 구현예는 편광판이 편광자, 상기 편광자의 상부에 적층된 접착제층, 상기 접착제층 상부에 적층된 편광자용 보호필름, 상기 편광자의 하부에 적층된 제1 점착제층, 상기 제1 점착제층 하부에 적층된 제1 위상차 필름, 상기 제1 위상차 필름 하부에 적층된 제2 점착제층, 및 상기 제2 점착제층 하부에 적층된 제2 위상차 필름을 포함하는 것일 수 있다.In another embodiment, the polarizing plate includes a polarizer, an adhesive layer laminated on the polarizer, a polarizer protective film laminated on the adhesive layer, a first pressure-sensitive adhesive layer laminated on the lower portion of the polarizer, A second retardation film laminated on the lower side of the first retardation film, and a second retardation film laminated on the lower side of the second pressure sensitive adhesive layer.
또 다른 일 구현예는 편광판이 편광자, 상기 편광자의 상부에 적층된 제1 접착제층, 상기 제1 접착제층 상부에 적층된 제1 편광자용 보호필름, 상기 편광자의 하부에 적층된 제2 접착제층, 상기 제2 접착제층 하부에 적층된 제2 편광자용 보호필름, 상기 제2 편광자용 보호필름 하부에 적층된 점착제층, 및 상기 점착제층 하부에 적층된 위상차 필름을 포함하는 것일 수 있다.In another embodiment, the polarizing plate includes a polarizer, a first adhesive layer laminated on the polarizer, a first polarizer protective film laminated on the first adhesive layer, a second adhesive layer laminated on the lower portion of the polarizer, A second polarizer protective film laminated on the lower side of the second adhesive layer, a pressure sensitive adhesive layer laminated on the lower side of the protective film for the second polarizer, and a retardation film laminated on the lower side of the pressure sensitive adhesive layer.
또 다른 일 구현예는 편광판이 편광자, 상기 편광자의 상부에 적층된 제1 접착제층, 상기 제1 접착제층 상부에 적층된 제1 편광자용 보호필름, 상기 편광자의 하부에 적층된 제2 접착제층, 상기 제2 접착제층 하부에 적층된 제2 편광자용 보호필름, 상기 제2 편광자용 보호필름 하부에 적층된 제1 점착제층, 상기 제1 점착제층 하부에 적층된 제1 위상차 필름, 상기 제1 위상차 필름 하부에 적층된 제2 점착제층, 및 상기 제2 점착제층 하부에 적층된 제2 위상차 필름을 포함하는 것일 수 있다.
In another embodiment, the polarizing plate includes a polarizer, a first adhesive layer laminated on the polarizer, a first polarizer protective film laminated on the first adhesive layer, a second adhesive layer laminated on the lower portion of the polarizer, A second polarizer protective film laminated on the lower side of the second adhesive layer, a first pressure sensitive adhesive layer laminated on the lower side of the protective film for the second polarizer, a first retardation film laminated on the lower side of the first pressure sensitive adhesive layer, A second pressure sensitive adhesive layer laminated on the lower side of the film, and a second retardation film laminated on the lower side of the second pressure sensitive adhesive layer.
또한, 본 발명은 상기 유기발광다이오드 디스플레이용 편광판을 포함하는 표시장치를 제공한다.
The present invention also provides a display device including the polarizer for the organic light emitting diode display.
본 발명의 접착제 조성물은 자외선 흡수제를 포함함에 따라, 자외선에 의해 편광판의 특성이 변화되는 것을 방지시킬 수 있으며, 광내구성 또한 향상되는 것이 특징이다.
The adhesive composition of the present invention is characterized by being able to prevent the characteristics of the polarizing plate from being changed by the ultraviolet rays and to improve the light durability by including the ultraviolet absorber.
본 발명은 접착제 조성물, 이를 이용한 편광판 및 표시장치에 관한 것이다. The present invention relates to an adhesive composition, a polarizing plate using the same, and a display device.
본 발명의 접착제 조성물은 자외선 흡수제를 포함함에 따라, 자외선에 의해 편광판의 특성이 변화되는 것을 방지시킬 수 있으며, 광내구성 또한 향상되는 것이 특징이다.
The adhesive composition of the present invention is characterized by being able to prevent the characteristics of the polarizing plate from being changed by the ultraviolet rays and to improve the light durability by including the ultraviolet absorber.
이하, 본 발명을 상세히 설명한다.
Hereinafter, the present invention will be described in detail.
본 발명은 광중합성 단량체, 광중합 개시제, 및 자외선 흡수제를 포함하는 접착제 조성물을 제공하며, 상기 접착제 조성물은 단파장 자외선(280~320nm)에서는 경화가 가능하면서도 장파장 자외선은 흡수하여 편광판의 특성이 변화되는 것을 방지시킬 수 있는 것이 특징이다.
The present invention provides an adhesive composition comprising a photopolymerizable monomer, a photopolymerization initiator, and an ultraviolet absorber, wherein the adhesive composition is capable of curing with a short wavelength ultraviolet ray (280 to 320 nm) It is characterized by being able to prevent.
광중합성Photopolymerization 단량체 Monomer
광중합성 단량체로는 아크릴 단량체 및 에폭시 단량체로 구성된 군으로부터 선택된 1종 이상이 사용된다. As the photopolymerizable monomer, at least one selected from the group consisting of an acrylic monomer and an epoxy monomer is used.
상기 아크릴계 단량체는 분자 내에 적어도 1개의 (메타)아크릴로일옥시기를 가지는 (메타)아크릴계 화합물로서, 구체적으로 메틸(메타)아크릴레이트, 알릴메타크릴레이트, 2-에톡시에틸(메타)아크릴레이트, 이소데실(메타)아크릴레이트, 2-도데실티오에틸메타크릴레이트, 옥틸아크릴레이트, 2-메톡시에틸아크릴레이트, 2-히드록시에틸(메타)아크릴레이트, 3-히드록시프로필(메타)아크릴레이트, 4-히드록시부틸(메타)아크릴레이트, 이소옥틸(메타)아크릴레이트, 이소덱실(메타)아크릴레이트, 스테아릴(메타)아크릴레이트, 글리시딜(메타)아크릴레이트, 테트라퍼푸릴(메타)아크릴레이트, 페녹시에틸(메타)아크릴레이트, 우레탄아크릴레이트, 아미노에틸(메타)아크릴레이트, 디메틸아미노에틸(메타)아크릴레이트, 이소보닐(메타)아크릴레이트 등의 1관능성 단량체; 1,3-부탄디올디(메타)아크릴레이트, 1,4-부탄디올디(메타)아크릴레이트, 1,6-헥산디올디(메타)아크릴레이트, 에틸렌글리콜디(메타)아크릴레이트, 비스페놀A-에틸렌글리콜디아크릴레이트, 디에틸렌글리콜디(메타)아크릴레이트, 트리에틸렌글리콜디(메타)아크릴레이트, 폴리에틸렌글리콜디(메타)아크릴레이트, 프로필렌글리콜디(메타)아크릴레이트, 디프로필렌글리콜디(메타)아크릴레이트, 네오펜틸글리콜디(메타)아크릴레이트, 디시클로펜타닐디(메타)아크릴레이트, 카프로락톤 변성 디시클로펜테닐디(메타)아크릴레이트, 에틸렌옥사이드 변성 인산디(메타)아크릴레이트, 비스(2-히드록시에틸)이소시아누레이트디(메타)아크릴레이트, 디(아크릴옥시에틸)이소시아누레이트, 알릴화 시클로헥실디(메타)아크릴레이트, 디메틸올디시클로펜탄디아크릴레이트, 에틸렌옥사이드 변성 헥사히드로프탈산디아크릴레이트, 트리시클로데칸디메탄올아크릴레이트, 네오펜틸글리콜 변성 트리메틸올프로판디아크릴레이트, 아다만탄디아크릴레이트 등의 2관능성 단량체; 트리메틸올프로판트리(메타)아크릴레이트, 디펜타에리트리톨트리(메타)아크릴레이트, 프로피온산 변성 디펜타에리트리톨트리(메타)아크릴레이트, 펜타에리트리톨트리(메타)아크릴레이트, 프로필렌옥사이드 변성 트리메틸올프로판트리(메타)아크릴레이트, 트리스(2-히드록시에틸)이소시아누레이트트리(메타)아크릴레이트, 트리스(아크릴옥시에틸)이소시아누레이트, 글리세롤트리(메타)아크릴레이트 등의 3관능성 단량체; 디글리세린테트라(메타)아크릴레이트, 펜타에리트리톨테트라(메타)아크릴레이트, 디트리메틸올프로판테트라(메타)아크릴레이트 등의 4관능성 단량체; 프로피온산 변성 디펜타에리트리톨펜타(메타)아크릴레이트 등의 5관능성 단량체; 및 카프로락톤 변성 디펜타에리트리톨헥사(메타)아크릴레이트 등의 6관능성 단량체 등을 들 수 있으며, 이들 중에서 1 내지 3관능성 단량체가 바람직하다. 이들은 단독 또는 2종 이상 혼합하여 사용할 수 있다.The acrylic monomer is a (meth) acrylic compound having at least one (meth) acryloyloxy group in the molecule, and specifically includes methyl (meth) acrylate, allyl methacrylate, 2-ethoxyethyl (meth) Acrylate, 2-hydroxyethyl (meth) acrylate, 3-hydroxypropyl (meth) acrylate, 2-hydroxyethyl Acrylate, stearyl (meth) acrylate, glycidyl (meth) acrylate, tetrapropyl (meth) acrylate, isobutyl (Meth) acrylate such as phenoxyethyl (meth) acrylate, phenoxyethyl (meth) acrylate, urethane acrylate, aminoethyl (meth) acrylate, dimethylaminoethyl (meth) acrylate and isobonyl Dimer; Butanediol di (meth) acrylate, 1,4-butanediol di (meth) acrylate, 1,6-hexanediol di (meth) acrylate, ethylene glycol di (meth) acrylate, bisphenol A- (Meth) acrylate, diethylene glycol di (meth) acrylate, triethylene glycol di (meth) acrylate, polyethylene glycol di (meth) acrylate, propylene glycol di (Meth) acrylate, dicyclopentanyl di (meth) acrylate, caprolactone modified dicyclopentenyl (meth) acrylate, ethylene oxide modified di (meth) acrylate, bis (Hydroxyethyl) isocyanurate di (meth) acrylate, di (acryloxyethyl) isocyanurate, allylcyclohexyl di (meth) acrylate, dimethyloldicyclopentane diacrylate , Ethylene oxide-modified hexahydrophthalic acid diacrylate, tricyclodecane dimethanol diacrylate, neopentyl glycol-modified trimethylolpropane diacrylate, adamantyl bifunctional monomers such as tandi acrylate; (Meth) acrylate such as trimethylolpropane tri (meth) acrylate, dipentaerythritol tri (meth) acrylate, propionic acid modified dipentaerythritol tri (meth) acrylate, pentaerythritol tri Trifunctional monomers such as tri (meth) acrylate, tris (2-hydroxyethyl) isocyanurate tri (meth) acrylate, tris (acryloxyethyl) isocyanurate, glycerol tri ; Tetrafunctional monomers such as diglycerin tetra (meth) acrylate, pentaerythritol tetra (meth) acrylate, and ditrimethylol propane tetra (meth) acrylate; Pentafunctional monomers such as propionic acid-modified dipentaerythritol penta (meth) acrylate; And caprolactone-modified dipentaerythritol hexa (meth) acrylate. Of these, mono- to trifunctional monomers are preferable. These may be used alone or in combination of two or more.
상기 에폭시계 단량체로는 방향족 에폭시 화합물, 지환족 에폭시 화합물, 지방족 에폭시 화합물, 비닐에테르계 모노머, 옥세탄계 모노머 등을 들 수 있다.Examples of the epoxy-based monomer include an aromatic epoxy compound, an alicyclic epoxy compound, an aliphatic epoxy compound, a vinyl ether-based monomer, and an oxetane-based monomer.
방향족 에폭시 화합물로는 예를 들면 비스페놀A의 디글리시딜에테르, 비스페놀F의 디클리시딜에테르, 페녹시 글리시딜에테르 등을 들수 있다.Examples of the aromatic epoxy compounds include diglycidyl ether of bisphenol A, diclycidyl ether of bisphenol F, phenoxy glycidyl ether, and the like.
지환족 에폭시 화합물로는 예를 들면 디시클로펜타디엔디옥시드, 리모넨디옥시드, 4-비닐시클로헥센디옥시드, 3,4-에폭시시클로헥실메틸 3,4-에폭시시클로헥산카르복실레이트, 비스(3,4-에폭시시클로헥실메틸)아디페이트 등을 들 수있다.Examples of the alicyclic epoxy compound include dicyclopentadiene dioxide, limonene dioxide, 4-vinylcyclohexene dioxide, 3,4-epoxycyclohexylmethyl 3,4-epoxycyclohexanecarboxylate, bis (3 , 4-epoxycyclohexylmethyl) adipate, and the like.
지방족 에폭시 화합물로는 예를 들면1,6-헥산디올디글리시딜에테르, 1,4-부탄디올디글리시딜에테르, 트리메틸올프로판 트리글리시딜에테르, 펜타에리트리톨테트라글리시딜에테르, 폴리테트라메틸렌글리콜디글리시딜에테르 등을 들 수 있다.Examples of the aliphatic epoxy compound include 1,6-hexanediol diglycidyl ether, 1,4-butanediol diglycidyl ether, trimethylol propane triglycidyl ether, pentaerythritol tetraglycidyl ether, polytetra Methylene glycol diglycidyl ether, and the like.
비닐에테르계 모노머로는 예를 들면, 디에틸렌글리콜디비닐에테르, 트리에틸렌글리콜디비닐에테르, 시클로헥실비닐에테르, 폴리에틸렌글리콜디비닐에테르, 1,4-시클로헥산디메탄올디비닐에테르 등을 들 수 있다. 이들은 단독 또는 2종 이상 혼합하여 사용할 수 있다.Examples of the vinyl ether-based monomer include diethylene glycol divinyl ether, triethylene glycol divinyl ether, cyclohexyl vinyl ether, polyethylene glycol divinyl ether, and 1,4-cyclohexanedimethanol divinyl ether. have. These may be used alone or in combination of two or more.
옥세탄계 모노머로는 예를 들면 2-에틸헥실옥세탄, 자일리렌비스옥세탄, 3-에틸-3-히드록시메틸옥세탄, 1,4-비스[(3-에틸옥세탄-3-일)메톡시메틸]벤젠, 3-에틸-3-(2-에틸헥실록시메틸)옥세탄, 비스(3-에틸-3-옥세타닐메틸)에테르,3-에틸-3-(페녹시메틸)옥세탄, 3-에틸-3-(시클로헥실록시메틸)옥세탄, 페놀노볼락옥세탄, 1,3-비스[(3-에틸옥세탄-3-일)메톡시]벤젠 등을 들 수 있다. 이들은 단독 또는 2종 이상 혼합하여 사용할 수 있다.
Examples of the oxetane-based monomer include 2-ethylhexyloxetane, xylenes bisoxetane, 3-ethyl-3-hydroxymethyloxetane, 1,4-bis [(3-ethyloxetan- (3-ethyl-3-oxetanylmethyl) ether, 3-ethyl-3- (phenoxymethyl) (3-ethyloxetan-3-yl) methoxy] benzene, and the like can be given. have. These may be used alone or in combination of two or more.
상기 광중합성 단량체는 고형분 함량을 기준으로 접착제 조성물 전체 100 중량부에 대하여 90 내지 99중량부 포함되는 것이 바람직하다. 상기 함량이 상기 범위이면 접착력과 응집력을 발현하는데 적합하다.
The photopolymerizable monomer is preferably contained in an amount of 90 to 99 parts by weight based on 100 parts by weight of the total adhesive composition based on the solid content. When the content is within the above range, it is suitable for exhibiting an adhesive force and a cohesive force.
광중합Light curing 개시제Initiator
광중합 개시제로는 통상의 양이온 개시제, 라디칼 개시제를 사용할 수 있다.As the photopolymerization initiator, a common cation initiator and radical initiator may be used.
양이온 개시제로는 예를 들면 오늄염 화합물, 철-아렌 착물 등을 들 수 있다.Examples of the cationic initiator include an onium salt compound and an iron-arene complex.
오늄염 화합물로는 벤젠디아조늄헥사플루오로안티모네이트, 젠디아조늄헥사플루오로포스페이트, 벤젠디아조늄헥사플루오로보레이트 등의 방향족 디아조늄염; 디페닐요오드늄테트라키스(펜타플루오로페닐)보레이트, 디페닐요오드늄헥사플루오로포스페이트, 디페닐요오드늄헥사플루오로안티모네이트, 디(4-노닐페닐)요오드늄헥사플루오로포스페이트 등의 방향족 요오드늄염;트리페닐술포늄헥사플루오로포스페이트, 트리페닐술포늄헥사플루오로안티모네이트, 트리페닐술포늄테트라키스(펜타플루오로페닐)보레이트, 디페닐[4-(페닐티오)페닐]술포늄헥사플루오로안티모네이트, 4,4'-비스[디페닐술포니오]디페닐술피드비스헥사플루오로포스페이트, 4,4'-비스[디(β히드록시에톡시)페닐술포니오]디페닐술피드비스헥사플루오로안티모네이트, 4,4'-비스[디(β히드록시에톡시)페닐술포니오]디페닐술피드비스헥사플루오로포스페이트, 7-[디(p-톨루일)술포니오]-2-이소프로필티오크산톤헥사플루오로안티모네이트, 7-[디(p-톨루일)술포니오]-2-이소프로필티오크산톤테트라키스(펜타플루오로페닐)보레이트, 4-페닐카보닐-4'-디페닐술포니오-디페닐술피드헥사플루오로포스페이트, 4-(p-tert-부틸페닐카보닐)-4'-디페닐술포니오-디페닐술피드헥사플루오로안티모네이트, 4-(p-tert-부틸페닐카보닐)-4'-디(p-톨루일)술포니오-디페닐술피드테트라키스(펜타플루오로페닐)보레이트, 디페닐[4-(페닐티오)페닐]술포늄의인산염 등의 방향족 술포늄염; 등을 들 수 있다.Examples of the onium salt compounds include aromatic diazonium salts such as benzene diazonium hexafluoroantimonate, zhendiazonium hexafluorophosphate, and benzene diazonium hexafluoroborate; Aromatic dicarboxylic acids such as diphenyliodonium tetrakis (pentafluorophenyl) borate, diphenyl iodonium hexafluorophosphate, diphenyl iodonium hexafluoroantimonate, di (4-nonylphenyl) iodonium hexafluorophosphate and the like Triphenylsulfonium hexafluorophosphate, triphenylsulfonium hexafluoroantimonate, triphenylsulfonium tetrakis (pentafluorophenyl) borate, diphenyl [4- (phenylthio) phenyl] sulfonium 4,4'-bis [diphenylsulfone] diphenyl sulfide bishexafluorophosphate, 4,4'-bis [di (? Hydroxyethoxy) phenylsulfonio] Diphenyl sulfide bishexafluoroantimonate, 4,4'-bis [di (? Hydroxyethoxy) phenylsulfonio] diphenyl sulfide bishexafluorophosphate, 7- [di (p- Ryl) sulfonio] -2-isopropylthioxanthone hexafluoroantimonate, 7- [ (p-toluyl) sulfonio] -2-isopropylthioxanthone tetrakis (pentafluorophenyl) borate, 4-phenylcarbonyl-4'-diphenylsulfo-diphenylsulfide hexafluoro Diphenylsulfide hexafluoroantimonate, 4- (p-tert-butylphenylcarbonyl) -4'-diphenylsulfone-hexafluoroantimonate, 4- (p- Aromatic sulfonium salts such as the phosphates of di (p-toluyl) sulfonio-diphenylsulfide tetrakis (pentafluorophenyl) borate and diphenyl [4- (phenylthio) phenyl] sulfonium; And the like.
철-아렌 착물로는 예를 들어 자일렌-시클로펜타디에닐철(II)헥사플루오로안티모네이트, 쿠멘-시클로펜타디에닐철(II)헥사플루오로포스페이트, 자일렌-시클로펜타디에닐철(II)-트리스(트리플루오로메틸술포닐)메타나이드 등을 들 수 있다.Examples of the iron-arene complexes include xylene-cyclopentadienyl iron (II) hexafluoroantimonate, cumene-cyclopentadienyl iron (II) hexafluorophosphate, xylene-cyclopentadienyl iron (II) -Tris (trifluoromethylsulfonyl) methanide, and the like.
라디칼 개시제로는 아세토페논계, 벤조인계, 벤조페논계, 티오크산톤계, 트리아진계 화합물 등을 들 수 있다. 이들은 단독 또는 2종 이상 혼합하여 사용할 수 있다.Examples of the radical initiator include acetophenone, benzoin, benzophenone, thioxanthone and triazine compounds. These may be used alone or in combination of two or more.
아세토페논계 화합물은 예를 들면 디에톡시아세토페논, 2-히드록시-2-메틸-1-페닐프로판-1-온, 벤질디메틸케탈, 2-히드록시-2-메틸-1-[2-(2-히드록시에톡시)페닐]프로판-1-온, 1-히드록시시클로헥실 페닐 케톤, 2-메틸-2-모르폴리노-1-(4-메틸티오페닐)프로판-1-온, 2-벤질-2-디메틸아미노-1-(4-모르폴리노페닐)부탄-1-온 및 2-히드록시-2-메틸-1-[4-(1-메틸비닐)페닐]프로판-1-온의 올리고머 등을들 수 있다.The acetophenone-based compounds include, for example, diethoxyacetophenone, 2-hydroxy-2-methyl-1-phenylpropan-1-one, benzyldimethylketal, 2- 2-methyl-2-morpholino-1- (4-methylthiophenyl) propan-1-one, 2 2-methyl-1- [4- (1-methylvinyl) phenyl] propane-1-one and 2-hydroxy- On oligomers and the like.
벤조인계 화합물은 예를 들면 벤조인, 벤조인 메틸 에테르, 벤조인 에틸 에테르, 벤조인 이소프로필 에테르, 벤조인 이소부틸 에테르 등을 들 수 있다.Examples of the benzoin compound include benzoin, benzoin methyl ether, benzoin ethyl ether, benzoin isopropyl ether, and benzoin isobutyl ether.
벤조페논계 화합물은 예를 들면 벤조페논, 메틸 o-벤조일 벤조에이트, 4-페닐벤조페논, 4-벤조일-4'-메틸디페닐 설파이드, 3,3',4,4'-테트라(t-부틸퍼옥시카르보닐)벤조페논, 2,4,6-트리메틸벤조페논 등을 들 수 있다.Benzophenone-based compounds include, for example, benzophenone, methyl o-benzoyl benzoate, 4-phenylbenzophenone, 4-benzoyl-4'- methyldiphenyl sulfide, 3,3 ', 4,4'- Butylperoxycarbonyl) benzophenone, 2,4,6-trimethylbenzophenone, and the like.
티오크산톤 화합물은 예를 들면 2-이소프로필티오크산톤, 4-이소프로필티오크산톤, 2,4-디에틸티오크산톤, 2,4-디클로로티오크산톤, 1-클로로-4-프로폭시티오크산톤 등을 들 수 있다.The thioxanthone compound is, for example, 2-isopropylthioxanthone, 4-isopropylthioxanthone, 2,4-diethylthioxanthone, 2,4-dichlorothioxanthone, 1- And Wright City Oak Mountain.
트리아진계 화합물은 예를 들면 2,4-비스(트리클로로메틸)-6-(4-메톡시페닐)-1,3,5-트리아진, 2,4-비스(트리클로로메틸)-6-(4-메톡시나프틸)-1,3,5-트리아진, 2,4-비스(트리클로로메틸)-6-피페로닐-1,3,5-트리아진, 2,4-비스(트리클로로메틸)-6-(4-메톡시스티릴)-1,3,5-트리아진, 2,4-비스(트리클로로메틸)-6-[2-(5-메틸푸란-2-일)에테닐]-1,3,5-트리아진, 2,4-비스(트리클로로메틸)-6-[2-(푸란-2-일)에테닐]-1,3,5-트리아진, 2,4-비스(트리클로로메틸)-6-[2-(4-디에틸아미노-2-메틸페닐)에테닐]-1,3,5-트리아진, 2,4-비스(트리클로로메틸)-6-[2-(3,4-디메톡시페닐)에테닐]-1,3,5-트리아진 등을 들 수 있다The triazine compound is, for example, 2,4-bis (trichloromethyl) -6- (4-methoxyphenyl) -1,3,5-triazine, 2,4- (4-methoxynaphthyl) -1,3,5-triazine, 2,4-bis (trichloromethyl) -6-piperonyl-1,3,5-triazine, 2,4-bis (Trichloromethyl) -6- [2- (5-methylfuran-2-yl) -1,3,5-triazine, ) Ethenyl] -1,3,5-triazine, 2,4-bis (trichloromethyl) -6- [2- (furan-2-yl) ethenyl] Bis (trichloromethyl) -6- [2- (4-diethylamino-2-methylphenyl) ethenyl] -1,3,5-triazine, 2,4- -6- [2- (3,4-dimethoxyphenyl) ethenyl] -1,3,5-triazine, and the like
광중합 개시제의 함량은 특별히 한정되지 않으며, 예를 들면 광중합성 단량체 100중량부에 대하여 0.1 내지 10중량부로 포함될 수 있다. 함량이 상기 범위 내인 경우 적정 수준으로 경화되어 접착층을 형성할 수 있다.
The content of the photopolymerization initiator is not particularly limited and may be, for example, 0.1 to 10 parts by weight based on 100 parts by weight of the photopolymerizable monomer. When the content is within the above range, the adhesive layer may be cured to an appropriate level.
자외선 흡수제Ultraviolet absorber
본 발명의 자외선 흡수제는 장파장 자외선을 흡수하는 것이 특징이며, 상기 장파장 자외선은 380~420nm을 의미한다.The ultraviolet absorber of the present invention is characterized in that it absorbs long wavelength ultraviolet rays, and the long wavelength ultraviolet ray means 380 to 420 nm.
장파장 자외선을 흡수하는 자외선 흡수제로는, 하이드록시벤조페논(Hydrozxybenzophenone)계 화합물; 하이드록시페닐벤조트리아졸(Hydroxyphenylbenzotriazole)계 화합물; 힌더드 아민(hindered amines)계 화합물; 철, 니켈, 및 코발트로 이루어진 군에서 선택되는 1종의 금속을 포함하는 유기 금속 화합물; 살리실레이트(Salicylate)계 화합물; 시나메이트(Cinnamate) 유도체; 레조치놀 모노벤조에이트(Resorcinol monobenzoates)계 화합물; 옥사닐라이드(Oxanilides)계 화합물; 하이드록시 벤조에이트(hydroxybenzoates)계 화합물; 유기 또는 무기 안료(pigment); 카본블랙; 쿠마린계 화합물(coumarines); 스틸벤유도체; 벤즈옥사졸릴계 화합물; 벤즈이미다졸릴계 화합물; 나프틸이미드계 화합물; 디아미노스틸벤설포네이트계 화합물; 트리아진스틸벤계 화합물; 페닐에스테르계 화합물; 벤조트리아졸계 화합물; 및 S-트리아진계 화합물로 이루어진 군으로부터 선택되는 1종 이상을 들 수 있다.Examples of the ultraviolet absorber that absorbs long wavelength ultraviolet rays include hydroxxybenzophenone compounds; Hydroxyphenylbenzotriazole-based compounds; Hindered amines based compounds; An organometallic compound including one kind of metal selected from the group consisting of iron, nickel, and cobalt; Salicylate-based compounds; Cinnamate derivatives; Resorcinol monobenzoates based compounds; Oxanilides-based compounds; Hydroxybenzoates-based compounds; Organic or inorganic pigments; Carbon black; Coumarines; Stilbene derivatives; Benzoxazolyl-based compounds; Benzimidazolyl-based compounds; A naphthyl imide compound; Diaminostilbene sulfonate-based compounds; Triazine stilbene compounds; Phenyl ester compounds; Benzotriazole-based compounds; And S-triazine-based compounds.
바람직하게는 자외선 흡수제가 하이드록시페닐벤조트리아졸인 것일 수 있다.Preferably, the ultraviolet absorber may be hydroxyphenylbenzotriazole.
자외선 흡수제는 전체 조성물의 중량을 기준으로 0.001 내지 10 중량%로 포함되는 것이 바람직하다. 상기 기준으로 상기 범위 내로 포함되는 경우 장파장 자외선 차단 효과가 우수하여 유기발광다이오드 소자의 열화를 방지하는데 바람직하다.
The ultraviolet absorber is preferably contained in an amount of 0.001 to 10% by weight based on the weight of the total composition. When it is included within the above-mentioned range, it is preferable to prevent deterioration of the organic light emitting diode device because of its excellent long wavelength ultraviolet blocking effect.
본 발명에 있어서의 접착제 조성물은, 본 발명의 목적을 벗어나지 않는 범위에서, 가소제, 실란 커플링제, 대전 방지제, 미립자, 퍼짐성을 좋게하는 알코올, 레벨링제 등 종래 공지된 적절한 첨가제를 더 포함할 수 있다.
The adhesive composition according to the present invention may further contain conventionally known suitable additives such as a plasticizer, a silane coupling agent, an antistatic agent, fine particles, an alcohol for improving spreadability, and a leveling agent within the scope of the present invention .
본 발명의 접착제 조성물은 편광판의 제조에 사용될 수 있다. 편광판은 편광자의 적어도 일면에 편광자용 보호필름을 접착제로 접합시켜 제조되는데, 이 때 접착제로서 본 발명의 접착제 조성물을 사용할 수 있다.
The adhesive composition of the present invention can be used in the production of a polarizing plate. The polarizer is manufactured by bonding a protective film for a polarizer to at least one surface of a polarizer with an adhesive, wherein the adhesive composition of the present invention can be used as an adhesive.
본 발명은 상기 접착제 조성물을 이용하여 제조된 편광판을 제공한다.The present invention provides a polarizing plate produced using the adhesive composition.
상기 편광판은 접착제 조성물을 이용하여 다양한 적층구조를 가질 수 있다.The polarizing plate may have various laminated structures using an adhesive composition.
일례로서, 편광자, 상기 편광자의 상부에 적층된 접착제층, 상기 접착제층 상부에 적층된 편광자용 보호필름, 및 상기 편광자의 하부에 위치한 1개 이상의 위상차 필름을 포함하며, 상기 접착제층은 상기 접착제 조성물을 포함하는 것을 특징으로 하는 유기발광다이오드 디스플레이용 편광판을 제공한다.
In one example, the optical information recording medium includes a polarizer, an adhesive layer laminated on the polarizer, a protective film for a polarizer laminated on the adhesive layer, and at least one retardation film positioned below the polarizer, And a polarizing plate for an organic light emitting diode display.
본 발명의 편광판에 있어서,In the polarizing plate of the present invention,
편광자는 연신된 폴리비닐알코올계 수지필름에 이색성 색소가 흡착 배향된 것이다.A polarizer is one in which a dichroic dye is adsorbed and oriented on a stretched polyvinyl alcohol-based resin film.
편광자를 구성하는 폴리비닐알코올계 수지는 폴리아세트산 비닐계 수지를 비누화함으로써 얻어질 수 있다. 폴리아세트산 비닐계 수지로는 아세트산 비닐의 단독 중합체인 폴리아세트산 비닐 이외에, 아세트산 비닐과 이와 공중합 가능한 다른 단량체와의 공중합체 등을 들 수 있다. 아세트산 비닐과 공중합 가능한 다른 단량체로는 불포화 카르복시산계, 불포화 술폰산계, 올레핀계, 비닐에테르계, 암모늄기를 갖는 아크릴아미드계 단량체 등을 들 수 있다. 또한 폴리비닐알코올계 수지는 변성된 것일 수도 있으며, 예를 들면 알데히드류로 변성된 폴리비닐포르말이나 폴리비닐아세탈 등도 사용할 수 있다. 폴리비닐알코올계 수지의 비누화도는 통상 85 내지 100몰%이며, 바람직하게는 98몰% 이상인 것이 좋다. 또한 폴리비닐알코올계 수지의 중합도는 통상 1,000 내지 10,000이며, 바람직하게는 1,500 내지 5,000인 것이 좋다.The polyvinyl alcohol-based resin constituting the polarizer can be obtained by saponifying a polyvinyl acetate-based resin. Examples of the polyvinyl acetate resin include polyvinyl acetate, which is a homopolymer of vinyl acetate, and copolymers of vinyl acetate and other monomers copolymerizable therewith. Other monomers copolymerizable with vinyl acetate include acrylamide monomers having an unsaturated carboxylic acid type, an unsaturated sulfonic acid type, an olefin type, a vinyl ether type, and an ammonium group. The polyvinyl alcohol resin may also be modified. For example, polyvinyl formal or polyvinyl acetal modified with aldehydes may be used. The saponification degree of the polyvinyl alcohol-based resin is usually 85 to 100 mol%, preferably 98 mol% or more. The polymerization degree of the polyvinyl alcohol-based resin is usually 1,000 to 10,000, preferably 1,500 to 5,000.
이러한 폴리비닐알코올계 수지를 필름상으로 제막한 것(폴리비닐알코올계 수지 필름)이 편광자에 이용된다. 폴리비닐알코올계 수지를 제막하는 방법은 특별히 한정되는 것은 아니고, 공지된 제막 방법을 채용할 수 있다. 원반이 되는 폴리비닐알코올계 수지 필름의 막 두께는 특별히 한정되지 않지만, 예를 들면 5 내지 150㎛ 이다. A film obtained by forming a film of such a polyvinyl alcohol-based resin (polyvinyl alcohol-based resin film) is used for the polarizer. The method of forming the polyvinyl alcohol-based resin is not particularly limited, and a known film-forming method can be employed. The thickness of the polyvinyl alcohol-based resin film as a disc is not particularly limited, but is, for example, 5 to 150 탆.
본 발명의 편광자는 수용액 상에서 연속적으로 폴리비닐알코올계 필름을 일축 연신하는 공정, 이색성 색소로 염색하여 흡착시키는 공정, 붕산 수용액으로 처리하는 공정 및 수세, 건조하는 공정을 경유하여 제조된다.
The polarizer of the present invention is produced by continuously uniaxially stretching a polyvinyl alcohol-based film in an aqueous solution, staining with a dichroic dye and adsorbing, treating with an aqueous solution of boric acid, and washing and drying.
편광자용 보호필름의 종류는 투명성, 기계적 강도, 열안정성, 수분차폐성, 등방성 등이 우수한 것이라면 특별히 제한되지 않으며, 예를 들면 아크릴계 수지필름, 셀룰로스계 수지필름, 폴리올레핀계 수지필름 및 폴리에스테르계 수지필름으로 이루어진 군에서 선택된 적어도 1종을 포함하는 각종 투명 수지필름을 사용할 수 있다.The kind of protective film for polarizer is not particularly limited as long as it is excellent in transparency, mechanical strength, thermal stability, moisture shielding property, isotropy and the like, and examples thereof include acrylic resin film, cellulose resin film, polyolefin resin film and polyester resin film And the like can be used as the transparent resin film.
상기 편광자용 보호필름의 구체적인 예를 들면, 폴리메틸(메타)아크릴레이트, 폴리에틸(메타)아크릴레이트 등의 아크릴계 수지필름; 폴리에틸렌테레프탈레이트, 폴리에틸렌이소프탈레이트, 폴리에틸렌나프탈레이트, 폴리부틸렌테레프탈레이트 등의 폴리에스테르계 수지필름; 디아세틸셀룰로스, 트리아세틸셀룰로스 등의 셀룰로스계 수지필름; 폴리에틸렌, 폴리프로필렌, 시클로계 또는 노르보넨 구조를 갖는 폴리올레핀계, 에틸렌-프로필렌 공중합체 등의 폴리올레핀계 수지필름; 등을 들 수 있으나, 이에 한정되는 것은 아니다.Specific examples of the polarizer protective film include acrylic resin films such as polymethyl (meth) acrylate and polyethyl (meth) acrylate; Polyester based resin films such as polyethylene terephthalate, polyethylene isophthalate, polyethylene naphthalate and polybutylene terephthalate; Cellulose-based resin films such as diacetylcellulose and triacetylcellulose; Polyolefin-based resin films such as polyethylene, polypropylene, cyclo-based or norbornene structures, polyolefin-based or ethylene-propylene copolymer; And the like, but the present invention is not limited thereto.
상기 편광자용 보호필름의 두께는 특별히 한정되지 않으나, 10 내지 200㎛일 수 있으며, 바람직하게는 10 내지 150㎛인 것이 좋다. 편광자용 보호필름의 두께가 10 내지 200㎛인 경우, 편광자의 양면에 편광자용 보호필름이 적층되는 경우 각 보호필름은 서로 동일하거나 상이한 두께를 가질 수 있다.
The thickness of the protective film for a polarizer is not particularly limited, but may be 10 to 200 mu m, preferably 10 to 150 mu m. When the thickness of the protective film for a polarizer is 10 to 200 mu m, when the protective film for a polarizer is laminated on both sides of the polarizer, the respective protective films may have the same or different thicknesses.
상기 접착제 조성물의 도공 방법에 특별한 한정은 없고, 예를 들어 닥터 블레이드, 와이어바, 다이 코터, 콤마 코터, 그라비아 코터 등 여러 가지 도공 방식을 이용할 수 있다.There is no particular limitation on the coating method of the adhesive composition, and various coating methods such as a doctor blade, a wire bar, a die coater, a comma coater, and a gravure coater can be used.
상기 접착제 조성물은 활성 에너지선을 조사함으로써 경화하여 편광자에 보호 필름을 부착시킨다.The adhesive composition cures by irradiating an active energy ray to adhere the protective film to the polarizer.
활성 에너지선의 광원으로는 저압 수은등, 중압 수은등, 고압 수은등, 초고압 수은등, 케미컬 램프, 블랙라이트 램프, 마이크로웨이브 여기 수은등, 메탈할라이드 램프 등이 사용될 수 있다. 접착제에 대한 광조사 강도는, 그 접착제의 조성에 따라 적절하게 결정되며, 특별히 한정되지 않지만, 중합개시제의 활성화에 유효한 파장 영역의 조사 강도는 0.1 내지 6000 mW/㎠인 것이 바람직하다. 그 조사 강도가 0.1 mW/㎠ 이상인 경우 반응 시간이 지나치게 길어지지 않고, 6000 mW/㎠ 이하인 경우 광원으로부터 복사되는 열 및 접착제의 경화시의 발열에 의한 황변이나 열화가 생길 우려가 적다. 접착제에 대한 광 조사 시간은 경화하는 접착제마다 제어되는 것으로, 특별히 한정되지 않지만, 상기 조사 강도와 조사 시간의 곱으로서 나타내는 적산광량이 10 내지 10,000 mJ/㎠가 되도록 설정되는 것이 바람직하다. 접착제에 대한 적산광량이 10 mJ/㎠ 이상인 경우 중합개시제 유래의 활성 종을 충분한 양으로 발생시켜 경화 반응을 보다 확실하게 진행시킬 수 있고, 10,000 mJ/㎠ 이하인 경우 조사 시간이 지나치게 길어지지 않아 양호한 생산성을 유지할 수 있다.As the light source of the active energy ray, a low pressure mercury lamp, a medium pressure mercury lamp, a high pressure mercury lamp, an ultra high pressure mercury lamp, a chemical lamp, a black light lamp, a microwave excited mercury lamp, a metal halide lamp and the like can be used. The light irradiation intensity with respect to the adhesive is appropriately determined according to the composition of the adhesive and is not particularly limited, but it is preferable that the irradiation intensity in the wavelength range effective for activation of the polymerization initiator is 0.1 to 6000 mW / cm 2. When the irradiation intensity is 0.1 mW / cm 2 or more, the reaction time does not become too long. When the irradiation intensity is 6000 mW / cm 2 or less, there is little possibility of yellowing or deterioration due to heat radiated from the light source and heat generated during curing of the adhesive. The light irradiation time for the adhesive is controlled for each adhesive to be cured and is not particularly limited, but it is preferable that the accumulated light amount represented by a product of the irradiation intensity and the irradiation time is set to 10 to 10,000 mJ / cm 2. When the accumulated light quantity for the adhesive is 10 mJ / cm 2 or more, the active species originating from the polymerization initiator can be generated in a sufficient amount to more surely proceed the curing reaction. When the amount is 10,000 mJ / cm 2 or less, the irradiation time is not excessively long, Lt; / RTI >
상기 광경화성 접착층의 두께는 그 접착력에 따라 조절될 수 있으며, 0.1 내지 10 ㎛가 바람직하고, 0.1 내지 5 ㎛가 보다 바람직하다.The thickness of the photo-curable adhesive layer can be adjusted according to the adhesive strength, preferably 0.1 to 10 mu m, more preferably 0.1 to 5 mu m.
편광자 보호필름의 편광자와 접합되지 않는 다른 한 면 상에는 1개 이상의 위상차 필름이 적층될 수 있다. One or more retardation films may be laminated on the other surface not to be bonded to the polarizer of the polarizer protective film.
위상차 필름은 빛의 광학적 특성을 조절하여 위상 차를 조절하거나 시야각 개선 기능을 가질 수 있다. 위상차 필름은 λ/4 위상차 필름으로서, 위상차 필름의 광축에 평행하며, 서로 수직인 두 편광 성분에 λ/4 만큼의 위상차를 부여하여 선평광을 원편광으로 바꾸거나 원편광을 선편광으로 바꾸는 역할을 한다. 구체적으로, 위상차 필름은 유기 발광다이오드 디스플레이 장치로부터 나오는 내광을 원편광으로부터 선편광으로 변화시키거나 외부로부터 들어 오는 선편광으로부터 원편광으로 변화시킨다.The retardation film can adjust the optical characteristics of the light to adjust the phase difference or to improve the viewing angle. The retardation film is a lambda / 4 retardation film. It serves to change the linear polarization to circular polarized light or to convert circular polarized light to linear polarized light by providing a phase difference of? / 4 to two mutually perpendicular polarization components parallel to the optical axis of the retardation film do. Specifically, the phase difference film converts the internal light emitted from the organic light emitting diode display device from circularly polarized light to linearly polarized light, or changes linearly polarized light from external linearly polarized light.
위상차 필름은 편광판에서 통상적으로 사용되는 것으로, 위상차 기능을 갖는 필름이라면 제한없이 사용할 수 있다. 위상차 필름으로는 시클로올레핀폴리머(COP)계, 아크릴계, 셀룰로오스계, 올레핀계 또는 이들의 혼합으로 만들어진 필름을 사용할 수 있다. 바람직하게는 시클로올레핀폴리머계 필름을 사용할 수 있다.The retardation film is usually used in a polarizing plate, and any film having a retardation function can be used without limitation. As the retardation film, a film made of cycloolefin polymer (COP), acrylic, cellulose, olefin, or a mixture thereof can be used. Preferably, a cycloolefin polymer film can be used.
위상차 필름의 두께는 10㎛-100㎛가 될 수 있다. 상기 범위에서, 편광판에 사용시 광학 보상 효과를 제공할 수 있고, 원편광 효과를 가질 수 있다. 바람직하게는 10㎛-60㎛ 두께를 가질 수 있다.The thickness of the retardation film may be 10 占 퐉 to 100 占 퐉. In this range, it is possible to provide an optical compensation effect when used in a polarizing plate, and can have a circular polarization effect. And preferably 10 占 퐉 to 60 占 퐉 thickness.
또한, 필요에 따라 편광자 보호필름의 편광자와 접합되지 않는 다른 한 면 상에는 하드코팅층, 반사방지층, 방현층, 대전방지층 등의 표면처리층이 더 적층될 수 있으며, 점착제층에 의해 광학 기능성 필름이 더 적층될 수 있다.
If necessary, a surface treatment layer such as a hard coating layer, an antireflection layer, an antiglare layer, and an antistatic layer may be further laminated on the other surface of the polarizer protective film not bonded to the polarizer, and the optical functional film may be further Can be stacked.
본 발명에 있어서, 점착제층은 편광판을 유기발광다이오드에 적층시키기 위한 통상의 점착제로서, 아크릴계 등을 사용할 수 있지만 이에 제한되지 않는다.
In the present invention, the pressure-sensitive adhesive layer is an ordinary pressure-sensitive adhesive for laminating a polarizing plate to an organic light-emitting diode, and acrylic type or the like can be used, but is not limited thereto.
이러한 편광판은 통상의 표시 장치에 모두 적용 가능하며, 바람직하게 상기 편광판은 유기발광다이오드 디스플레이용 편광판으로 사용이 가능하다.
Such a polarizing plate can be applied to all conventional display devices, and preferably, the polarizing plate can be used as a polarizing plate for an organic light emitting diode display.
이하, 본 발명을 제조예, 실시예, 비교예 및 실험예를 이용하여 더욱 상세하게 설명한다. 그러나 하기 제조예, 실시예, 비교예 및 실험예는 본 발명을 예시하기 위한 것으로서, 본 발명은 하기 제조예, 실시예, 비교예 및 실험예에 의해 한정되지 않고 다양하게 수정 및 변경될 수 있다.
Hereinafter, the present invention will be described in more detail with reference to Production Examples, Examples, Comparative Examples and Experimental Examples. However, the following Production Examples, Examples, Comparative Examples and Experimental Examples are for illustrating the present invention, and the present invention is not limited by the following Production Examples, Examples, Comparative Examples and Experimental Examples, .
제조예Manufacturing example 1. One. 편광자Polarizer 제조 Produce
평균중합도가 2,400이고, 비누화도가 99.9몰% 이상인 75㎛ 두께의 폴리비닐알코올 필름을 건식으로 약 5배로 일축 연신하고, 연신 상태를 유지한 채로 60?의 물(증류수)에 1분 동안 침지한 후 요오드/요오드화칼륨/증류수의 중량비가 0.05/5/100인 28?의 수용액에서 60초 동안 침지하였다. 그 후, 요오드화칼륨/붕산/증류수의 중량비가 8.5/8.5/100인 72? 수용액에 300초 동안 침지하고, 26?의 증류수로 20초 동안 세정한 후 65℃에서 건조하여 PVA계 필름에 요오드가 흡착 배향된 편광자를 제조하였다.
A polyvinyl alcohol film having an average degree of polymerization of 2,400 and a saponification degree of 99.9 mol% or more and a thickness of 75 탆 was uniaxially stretched by a dry method about 5 times and immersed in water (distilled water) of 60 캜 for 1 minute while maintaining the stretched state And immersed for 60 seconds in a 28? Aqueous solution having a weight ratio of after-iodine / potassium iodide / distilled water of 0.05 / 5/100. Thereafter, a 72 占? Ratio of potassium iodide / boric acid / distilled water at a weight ratio of 8.5 / 8.5 / Aqueous solution for 300 seconds, rinsed with distilled water of 26? For 20 seconds, and dried at 65 占 폚 to prepare a polarizer having iodine adsorbed orientation on the PVA film.
제조예Manufacturing example 2. 2. 편광자용For polarizer 보호필름의 제조 Production of protective film
트리아세틸셀룰로스계 필름인 KC8UX(코니카미놀타(주))을 검화하여 사용하였다.
A triacetyl cellulose-based film, KC8UX (Konica Minolta Co., Ltd.), was used by saponification.
실시예Example 1 및 1 and 비교예Comparative Example 1. 접착제 조성물의 제조 1. Preparation of adhesive composition
하기 표 1의 성분 및 함량(단위: 중량부)를 갖는 접착제 조성물을 제조하였다.An adhesive composition having the components and the content (unit: parts by weight) of the following Table 1 was prepared.
A-1: 3,4-에폭시시클로헥실메틸-3,4-에폭시시클로헥산카르복실레이트A-1: 3,4-Epoxycyclohexylmethyl-3,4-epoxycyclohexanecarboxylate
A-2: 네오펜틸 글리콜 디글리시딜에테르A-2: Neopentyl glycol diglycidyl ether
A-3: 2-에틸헥실글리시딜에테르A-3: 2-ethylhexyl glycidyl ether
B-1: 4,4'-비스[비스((β히드록시에톡시)페닐)술포니오]페닐술피드-비스-헥사플루오로포스페이트B-1: 4,4'-Bis [bis ((? Hydroxyethoxy) phenyl) sulfonio] phenylsulfide-bis-hexafluorophosphate
C-1: 하이드록시페닐벤조트리아졸계 화합물 (Tinuvin®Carboprotect® Basf)
C-1: Hydroxyphenylbenzotriazole-based compound (Tinuvin® Carboprotect® Basf)
실험예Experimental Example 1. 편광판의 제조 1. Preparation of Polarizer
제조예 1에서 제조된 편광자의 양면에 상기 접착제 조성물을 건조막 두께가 2.0㎛가 되도록 도포한 후 셀룰로오스계 보호필름(코니카사, KC8UX(상품명), 트리아세틸셀룰로스 필름)을 니프 롤을 이용하여 접합시켰다. 접합된 편광판을 UV 적산광량 1J/㎠을 조사하여 접착층을 형성하여 편광판을 제조하였다.
The adhesive composition was coated on both sides of the polarizer prepared in Preparation Example 1 to a dry film thickness of 2.0 m, and then a cellulose-based protective film (Konica Corp., KC8UX (trade name), triacetyl cellulose film) . The bonded polarizing plate was irradiated with a UV cumulative light quantity of 1 J / cm < 2 > to form an adhesive layer to produce a polarizing plate.
실험예Experimental Example 2. 편광판의 광학 특성 및 2. Optical properties of polarizer and 광내구성Light durability 평가 evaluation
상기 실험예 1에서 제조된 편광판의 광학 특성, 광내구성 및 반사색상을 평가하였고, 그 결과를 하기 표 2 및 표 3에 나타내었다.Optical characteristics, light durability and reflection hue of the polarizer prepared in Experimental Example 1 were evaluated, and the results are shown in Tables 2 and 3 below.
표 2는 편광판 광학 특성 평가 결과를 나타낸 것이며, 광학 특성의 평가방법은 하기와 같다:Table 2 shows the evaluation results of the polarizing plate optical characteristics, and the evaluation method of the optical properties is as follows:
<광학 특성의 평가><Evaluation of optical characteristics>
상기 실험예 1에서 제조된 편광판을 5cmX5cm 크기로 절단하고 제작한 편광판을 파장역 200 내지 800nm에 있어서의 광선 투과율을 분광 광도계(시마즈세사쿠쇼 가부시키가이샤 제조; 기기명「UV2450」)를 사용하여 측정하였다.
The polarizing plate prepared in Experimental Example 1 was cut into a size of 5 cm x 5 cm and the polarizing plate was measured using a spectrophotometer (manufactured by Shimadzu Corporation, apparatus: " UV2450 ") at a wavelength of 200 to 800 nm Respectively.
표 3은 광내구성의 평가 결과를 나타낸 것으로, 광내구성의 평가 방법 및 그 평가 기준은 하기와 같다:Table 3 shows the evaluation results of the light durability, and the evaluation methods of the light durability and evaluation criteria thereof are as follows:
<광내구성의 평가><Evaluation of optical durability>
상기 실험예 1에서 제조된 편광판을 A4 크기로 절단하고, 이를 아크릴 점착제로 유리에 접합시켜 시편을 준비하였다. 준비한 시편을 내열 80 ℃ 조건의 오븐에 500시간 동안 방치한 후, 편광판의 초기 편광도 및 정면 휘도 대비 변화율 기준에 의거하여 평가하였다.The polarizing plate prepared in Experimental Example 1 was cut into A4 size and bonded to glass with acrylic adhesive to prepare a sample. The prepared specimens were allowed to stand for 500 hours in an oven at a temperature of 80 ° C, and then evaluated based on the initial polarizability of the polarizer and the change rate relative to the frontal brightness.
○: 초기 편광도 및 정면 휘도 대비 ±5%이내 변화율○: Initial polarized light intensity and front light intensity within ± 5%
×: 초기 편광도 및 정면 휘도 대비 ±10%이상의 변화율×: rate of change of ± 10% or more with respect to initial polarization and front luminance
표 2 및 표 3에 나타난 바와 같이, 실시예 1의 경우 380nm 및 420nm에서 각각 0.01% 이하 및 6.5%의 투과율을 나타내었으며, 광내구성 또한 우수한 결과를 나타내었다. 이에 반해 비교예 1의 경우 420nm에서 80%의 투과율을 나타내었고 광내구성 또한 당해 기술분야에서 요구하는 기준을 충족시키지 못한 결과를 나타내었다.As shown in Table 2 and Table 3, the transmittance of Example 1 was less than 0.01% and 6.5% at 380 nm and 420 nm, respectively, and the optical durability was also excellent. On the contrary, Comparative Example 1 exhibited a transmittance of 80% at 420 nm, and the optical durability also failed to meet the standards required in the related art.
Claims (11)
자외선 흡수제는 전체 조성물의 중량을 기준으로 0.001 내지 10 중량%로 포함되는 것을 특징으로 하는 접착제 조성물.The method according to claim 1,
Wherein the ultraviolet absorber is included in an amount of 0.001 to 10% by weight based on the weight of the total composition.
상기 자외선 흡수제는 장파장 자외선을 흡수하는 것을 특징으로 하는 접착제 조성물.The method according to claim 1,
Wherein the ultraviolet absorber absorbs ultraviolet light having a long wavelength.
상기 자외선 흡수제는 하이드록시벤조페논(Hydrozxybenzophenone)계 화합물; 하이드록시페닐벤조트리아졸(Hydroxyphenylbenzotriazole)계 화합물; 힌더드 아민(hindered amines)계 화합물; 철, 니켈, 및 코발트로 이루어진 군에서 선택되는 1종의 금속을 포함하는 유기 금속 화합물; 살리실레이트(Salicylate)계 화합물; 시나메이트(Cinnamate) 유도체; 레조치놀 모노벤조에이트(Resorcinol monobenzoates)계 화합물; 옥사닐라이드(Oxanilides)계 화합물; 하이드록시 벤조에이트(hydroxybenzoates)계 화합물; 유기 또는 무기 안료(pigment); 카본블랙; 쿠마린계 화합물(coumarines); 스틸벤유도체; 벤즈옥사졸릴계 화합물; 벤즈이미다졸릴계 화합물; 나프틸이미드계 화합물; 디아미노스틸벤설포네이트계 화합물; 트리아진스틸벤계 화합물; 페닐에스테르계 화합물; 벤조트리아졸계 화합물; 및 S-트리아진계 화합물로 이루어진 군으로부터 선택되는 1종 이상을 포함하는 것을 특징으로 하는 접착제 조성물.The method according to claim 1,
The ultraviolet absorber may be a hydroxybenzophenone compound; Hydroxyphenylbenzotriazole-based compounds; Hindered amines based compounds; An organometallic compound including one kind of metal selected from the group consisting of iron, nickel, and cobalt; Salicylate-based compounds; Cinnamate derivatives; Resorcinol monobenzoates based compounds; Oxanilides-based compounds; Hydroxybenzoates-based compounds; Organic or inorganic pigments; Carbon black; Coumarines; Stilbene derivatives; Benzoxazolyl-based compounds; Benzimidazolyl-based compounds; A naphthyl imide compound; Diaminostilbene sulfonate-based compounds; Triazine stilbene compounds; Phenyl ester compounds; Benzotriazole-based compounds; And an S-triazine-based compound.
상기 편광자의 상부에 적층된 접착제층,
상기 접착제층 상부에 적층된 편광자용 보호필름, 및
상기 편광자의 하부에 위치한 1개 이상의 위상차 필름을 포함하며,
상기 접착제층은 상기 청구항 1의 접착제 조성물을 포함하는 것을 특징으로 하는 유기발광다이오드 디스플레이용 편광판.Polarizers,
An adhesive layer laminated on the polarizer,
A protective film for a polarizer laminated on the adhesive layer, and
And at least one retardation film positioned below the polarizer,
Wherein the adhesive layer comprises the adhesive composition of claim 1. The polarizer of claim 1,
상기 편광판은 편광자,
상기 편광자의 상부에 적층된 제1 접착제층,
상기 제1 접착제층 상부에 적층된 제1 편광자용 보호필름, 및
상기 편광자의 하부에 위치한 1개 이상의 위상차 필름을 포함하며,
상기 편광자와 상기 편광자로부터 인접한 위상차 필름 사이에 제2 편광자용 보호필름이 위치하고 있고,
상기 편광자의 하부에는 제2 접착제층이 적층되어 있으며, 상기 제2 접착제층의 하부에는 제2 편광자용 보호필름이 적층되어 있고,
상기 제1 접착제층 및 제2 접착제층은 상기 청구항 1의 접착제 조성물을 포함하는 것을 특징으로 하는 유기발광다이오드 디스플레이용 편광판. The method of claim 5,
The polarizing plate includes a polarizer,
A first adhesive layer laminated on the polarizer,
A first polarizer protective film laminated on the first adhesive layer, and
And at least one retardation film positioned below the polarizer,
A protective film for the second polarizer is located between the polarizer and the adjacent retarder film from the polarizer,
A second adhesive layer is laminated on the lower part of the polarizer, a protective film for a second polarizer is laminated on the lower part of the second adhesive layer,
Wherein the first adhesive layer and the second adhesive layer comprise the adhesive composition of claim 1. The polarizer of claim 1,
상기 편광판은 편광자,
상기 편광자의 상부에 적층된 접착제층,
상기 접착제층 상부에 적층된 편광자용 보호필름,
상기 편광자의 하부에 적층된 점착제층, 및
상기 점착제층 하부에 적층된 위상차 필름을 포함하는 유기발광다이오드 디스플레이용 편광판. The method of claim 5,
The polarizing plate includes a polarizer,
An adhesive layer laminated on the polarizer,
A protective film for a polarizer laminated on the adhesive layer,
A pressure-sensitive adhesive layer laminated on the lower portion of the polarizer, and
And a retardation film laminated below the pressure-sensitive adhesive layer.
상기 편광판은 편광자,
상기 편광자의 상부에 적층된 접착제층,
상기 접착제층 상부에 적층된 편광자용 보호필름,
상기 편광자의 하부에 적층된 제1 점착제층,
상기 제1 점착제층 하부에 적층된 제1 위상차 필름,
상기 제1 위상차 필름 하부에 적층된 제2 점착제층, 및
상기 제2 점착제층 하부에 적층된 제2 위상차 필름을 포함하는 유기발광다이오드 디스플레이용 편광판. The method of claim 5,
The polarizing plate includes a polarizer,
An adhesive layer laminated on the polarizer,
A protective film for a polarizer laminated on the adhesive layer,
A first pressure-sensitive adhesive layer laminated on the lower portion of the polarizer,
A first retardation film laminated below the first pressure-sensitive adhesive layer,
A second pressure-sensitive adhesive layer laminated on the lower portion of the first retardation film, and
And a second retardation film laminated below the second pressure sensitive adhesive layer.
상기 편광판은 편광자,
상기 편광자의 상부에 적층된 제1 접착제층,
상기 제1 접착제층 상부에 적층된 제1 편광자용 보호필름,
상기 편광자의 하부에 적층된 제2 접착제층,
상기 제2 접착제층 하부에 적층된 제2 편광자용 보호필름,
상기 제2 편광자용 보호필름 하부에 적층된 점착제층, 및
상기 점착제층 하부에 적층된 위상차 필름을 포함하는 유기발광다이오드 디스플레이용 편광판. The method of claim 6,
The polarizing plate includes a polarizer,
A first adhesive layer laminated on the polarizer,
A first polarizer protective film laminated on the first adhesive layer,
A second adhesive layer laminated on the lower portion of the polarizer,
A second polarizer protective film laminated below the second adhesive layer,
A pressure-sensitive adhesive layer laminated below the protective film for the second polarizer, and
And a retardation film laminated below the pressure-sensitive adhesive layer.
상기 편광판은 편광자,
상기 편광자의 상부에 적층된 제1 접착제층,
상기 제1 접착제층 상부에 적층된 제1 편광자용 보호필름,
상기 편광자의 하부에 적층된 제2 접착제층,
상기 제2 접착제층 하부에 적층된 제2 편광자용 보호필름,
상기 제2 편광자용 보호필름 하부에 적층된 제1 점착제층,
상기 제1 점착제층 하부에 적층된 제1 위상차 필름,
상기 제1 위상차 필름 하부에 적층된 제2 점착제층, 및
상기 제2 점착제층 하부에 적층된 제2 위상차 필름을 포함하는 유기발광다이오드 디스플레이용 편광판. The method of claim 6,
The polarizing plate includes a polarizer,
A first adhesive layer laminated on the polarizer,
A first polarizer protective film laminated on the first adhesive layer,
A second adhesive layer laminated on the lower portion of the polarizer,
A second polarizer protective film laminated below the second adhesive layer,
A first pressure-sensitive adhesive layer laminated below the protective film for the second polarizer,
A first retardation film laminated below the first pressure-sensitive adhesive layer,
A second pressure-sensitive adhesive layer laminated on the lower portion of the first retardation film, and
And a second retardation film laminated below the second pressure sensitive adhesive layer.
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