KR100550157B1 - Structure of inorganic electro-luminescence lamp using electroconductive organic polymer and electrode composition - Google Patents
Structure of inorganic electro-luminescence lamp using electroconductive organic polymer and electrode composition Download PDFInfo
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- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/02—Use of particular materials as binders, particle coatings or suspension media therefor
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- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
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- H05B33/00—Electroluminescent light sources
- H05B33/12—Light sources with substantially two-dimensional radiating surfaces
- H05B33/26—Light sources with substantially two-dimensional radiating surfaces characterised by the composition or arrangement of the conductive material used as an electrode
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Abstract
본 발명은 무기전계발광(inorganic electro luminescence) 램프의 구조와 배면전극을 구성하는 조성물에 관한 것으로 종래의 탄소입자를 이용한 배면전극, 버스바(bus bar), 보호층을 포함하는 무기EL lamp의 구조를 도전성 유기고분자로 코팅한 알루미늄 전극으로 대체함으로서 기능적, 경제적 이득을 동시에 얻을 수 있다.The present invention relates to a structure of an inorganic electro luminescence lamp and a composition constituting a back electrode, and a structure of an inorganic EL lamp including a back electrode, a bus bar, and a protective layer using conventional carbon particles. By replacing with an aluminum electrode coated with a conductive organic polymer, functional and economical benefits can be obtained at the same time.
도전성, 고분자, EL, 램프, 알루미늄, 전극 Conductive, Polymer, EL, Lamp, Aluminum, Electrode
Description
제 1도는 일반적인 EL램프의 단면 구조도.1 is a cross-sectional structure diagram of a general EL lamp.
제 2도는 본 발명에 따른 EL램프의 단면 구조도.2 is a cross-sectional structural view of an EL lamp according to the present invention.
본 발명은 무기전계발광(inorganic electro luminescence) 램프의 구조 및 전극 조성물에 대한 것으로 종래의 탄소입자를 이용한 배면전극, 버스바(bus bar), 보호층을 포함하는 무기EL lamp의 구조를 도전성 유기고분자로 코팅한 알루미늄 전극으로 대체함으로서 기능적, 경제적 이득을 동시에 얻을 수 있다.The present invention relates to a structure and an electrode composition of an inorganic electroluminescent lamp, and a structure of an inorganic EL lamp including a back electrode, a bus bar, and a protective layer using conventional carbon particles. Functional and economical benefits can be achieved at the same time by substituting aluminum coated with aluminum.
본 발명은 도전성 유기 고분자와 알루미늄박막을 배면전극으로 사용한 무기전계발광(inorganic electro luminescence) 램프의 구조 및 전극조성물에 대한 것 으로 더 상세하게는 LCD 광원, 자동차 및 항공기의 표시부 광원, 광고물의 조명램프, 각종 인테리어 무대장치의 광원 등 다양한 광원으로 이용할 수 있는 무기EL lamp의 구조 및 전극조성물에 관한 것이다.The present invention relates to a structure and an electrode composition of an inorganic electroluminescence lamp using a conductive organic polymer and an aluminum thin film as a back electrode, and more particularly, to an LCD light source, a display light source of an automobile and an aircraft, an illumination lamp of an advertisement. The present invention relates to a structure and an electrode composition of an inorganic EL lamp which can be used as various light sources such as light sources of various interior stage devices.
일반적으로 무기전계발광현상을 이용한 시트(sheet)형태의 램프는 전면에 인듐-주석 산화물(Indium- Tin Oxide) 또는 인듐-아연산화물(Indium- Zinc Oxide) 코팅막이 포함된 투명기판을 전면 전극으로, 그 위에 황화아연(ZnS)를 모체재료로 하고 Cu, Cl, I, Mn 등의 활성제를 유기 결합제에 분산시킨 발광층, 티탄산 바륨(BaTiO3)등의 강유전체를 절연막으로 하는 유전층, 탄소층 또는 실버페이스트 또는 이 두 가지를 겸용한 배면전극, 그리고 배면전극의 보호층으로 구성되어 있다. In general, a sheet-type lamp using an inorganic electroluminescence phenomenon is a front substrate using a transparent substrate including an indium tin oxide or an indium zinc oxide coating on its front surface. A dielectric layer, carbon layer, or silver paste having zinc sulfide (ZnS) as a mother material and a light emitting layer in which activators such as Cu, Cl, I, and Mn are dispersed in an organic binder, and a ferroelectric such as barium titanate (BaTiO 3 ) as an insulating film. Or it consists of the back electrode which combined these two, and the protective layer of a back electrode.
이러한 EL 램프의 합성 탄소 분말 또는 분쇄상의 흑연을 주성분으로 하는 배면 전극층은 인쇄를 위해 각종 유기 첨가물과 혼합되어 유전체 위에 도포되므로 자체 임피던스가 높아 대면적화 하는데 제한 요인이 되며, 이를 해결하기 위해 실버페이스트를 이용할 수가 있으나 고가의 비용 때문에 양산에 적용하기 어려운 문제가 있다. 또한 발광에 치명적인 장해를 주는 수분의 침투를 방지하기 위하여 방습을 고려한 인쇄 또는 코팅 가능한 보호층이 추가되나, 옥외에서 사용할 수 있는 정도의 내후성을 확보하기 위해서는 알루미늄 등 내습을 위한 별도의 방수층이 필요하다. Since the back electrode layer mainly composed of synthetic carbon powder or pulverized graphite of the EL lamp is mixed with various organic additives for printing and applied on the dielectric, it has a high self impedance, which is a limiting factor in the large area. Although it can be used, there is a problem that is difficult to apply to mass production because of the high cost. In addition, a protective layer that can be printed or coated in consideration of moisture resistance is added to prevent the penetration of moisture, which is harmful to light emission.However, a separate waterproof layer for moisture resistance such as aluminum is required to secure weather resistance that can be used outdoors. .
종래의 탄소전극의 개선방안으로서 저 임피던스, 방수기능을 가지는 한편 EL 램프의 대면적화에 유리하고 제조비용을 절감할 수 있는 배면전극을 제공함으로서 무기EL 램프의 활용영역을 확대할 수 있다. 본 발명은 도전성 유기 고분자를 바인더와 혼합하여 알루미늄 박막과 유전체 사이의 접합층으로 이용함으로서 대량생산이 용이하고, 방수특성이 뛰어나며, 제조 프로세스가 단순화된 배면 전극 구조 및 전극 조성물을 제공하는데 목적이 있다.As an improvement of the conventional carbon electrode, it is possible to expand the application area of the inorganic EL lamp by providing a back electrode which has a low impedance and a waterproof function, which is advantageous for the large area of the EL lamp, and which reduces the manufacturing cost. An object of the present invention is to provide a back electrode structure and an electrode composition by mixing a conductive organic polymer with a binder to be used as a bonding layer between an aluminum thin film and a dielectric to facilitate mass production, excellent waterproof properties, and simplified manufacturing process. .
상기와 같은 목적을 달성하기 위해 본 발명에서는 다음과 같은 구성을 갖는다.In order to achieve the above object, the present invention has the following configuration.
도전성 유기 고분자 에멀전을 알루미늄 박막에 코팅하여 전극을 만들고 이를 전면전극, 발광층, 유전층이 순차적으로 인쇄된 EL sheet 의 유전층에 합지하여 무기 EL 램프를 완성하는 것을 특징으로 한다.The conductive organic polymer emulsion is coated on an aluminum thin film to make an electrode, and the front electrode, the light emitting layer, and the dielectric layer are laminated on a dielectric layer of an EL sheet printed sequentially, thereby completing an inorganic EL lamp.
알루미늄은 전기, 열전도성 및 방수특성이 우수하고, 가벼우며 가공이 용이한 성질을 가짐으로 순도가 높을수록 전기적 특성과 방수특성상 유리하다. 본 발명에서는 박막의 형태로 이용하므로 호일(foil)형태의 알루미늄박을 플라스틱 필름과 합지하여 알루미늄, 플라스틱합지필름을 이용한다.Aluminum has excellent electrical, thermal conductivity, and waterproof properties, and is light and easy to process. Therefore, the higher the purity, the better the electrical and waterproof properties. In the present invention, since the foil is used in the form of a thin film (foil) aluminum foil is laminated with a plastic film to use aluminum, plastic laminated film.
알루미늄박의 두께에는 제한을 두지 않으나, 바람직한 알루미늄박의 두께는 6 ~ 50㎛이다. 6㎛이하인 경우에는 박막 생산시 발생한 핀홀 등의 결점이 발광면의 결점형성 또는 방수 및 방습성 저하의 원인이 되고, 50㎛이상인 경우에는 EL램프의 전체적인 두께 및 중량이 커짐으로 바람직하지 못하다.Although there is no restriction | limiting in the thickness of an aluminum foil, The thickness of a preferable aluminum foil is 6-50 micrometers. In the case of 6 µm or less, defects such as pinholes generated during thin film production cause defects in the light emitting surface, or a decrease in water resistance and moisture resistance, and in the case of 50 µm or more, the overall thickness and weight of the EL lamp are not preferable.
알루미늄의 표면은 대기와의 접촉에 의해 산화막이 발생되는데, 이를 제거하기 위해 소요되는 비용 대비 성능의 저하가 크지 않으므로 적절한 조건에서 생산 보관되었다면 일반적인 세정작업만으로도 사용가능하다. 특히, 도전성 코팅제와 결합되는 알루미늄 표면은 에칭(Etching)처리로 표면적을 넓힘으로서 전기적 효율을 얻을 수 있다.The surface of aluminum is an oxide film is generated by contact with the atmosphere, the cost of performance to remove it does not have a significant decrease in performance, so if it is produced and stored under the appropriate conditions can be used only by normal cleaning operations. In particular, the aluminum surface combined with the conductive coating agent can obtain electrical efficiency by increasing the surface area by etching.
플라스틱 필름은 알루미늄호일의 취급 및 가공에 적절한 것이면 재질, 색상에 제한은 없으며, 내구성 및 투습성이 우수할수록 좋다. 플라스틱 필름과 알루미늄호일의 합지방법은 특별한 제한이 없으며 adhesive laminating, die coating, printing 등 상용화된 방식을 이용한다.The plastic film is not limited in material and color as long as it is suitable for handling and processing aluminum foil, and the more excellent in durability and moisture permeability. The lamination method of plastic film and aluminum foil is not particularly limited and commercially available methods such as adhesive laminating, die coating and printing are used.
도전성 유기고분자 에멀젼에 포함되는 전도성 유기 고분자로는 폴리아닐린(polyaniline), 폴리파라페닐, 폴리피롤(polypyrrole), 폴리티오펜, 폴리아세틸렌(polyacetylene), 폴리메틸티오펜, 폴리이소티아나프텐, 폴리페닐렌설파이드, 폴리페닐렌옥사이드, 폴리페닐렌비닐렌, 폴리티오펜비닐렌, 폴리페리나프탈렌(PPN), 베이트론 피(baytron P;BAYER社) 중 선택되는 1종 또는 2종 이상의 혼합물, 또는 그 유도체이거나 이들을 구성하는 모노머 또는 올리고머 및 중합체의 혼합물이다.Conductive organic polymers included in the conductive organic polymer emulsion include polyaniline, polyparaphenyl, polypyrrole, polythiophene, polyacetylene, polymethylthiophene, polyisothianaphthene, polyphenylene 1 or 2 or more types selected from sulfide, polyphenylene oxide, polyphenylenevinylene, polythiophenvinylene, polyperinaphthalene (PPN), and baytron P (BAYER), or derivatives thereof Or a mixture of monomers or oligomers and polymers constituting them.
도전성 유기고분자 에멀젼에 포함되는 바인더로는 폴리비닐 아세테이트, 폴리비닐 알콜, 에틸렌비닐아세테이트, 에폭시 실란, 아크릴수지계 에멀젼, 아크릴 변성 알키드 수지, 우레탄 아크릴레이트, 클로로프렌, 합성고무 라텍스계 에멀젼, 수성비닐우레탄 중 선택되는 1종 이상을 사용하며, 상기 전도성 유기고분자와 혼합시 전도성과 접착력을 유지하는 범위내에서 균일한 분산과 안정성을 위해 분산제, 가소제, 안정제등을 첨가하여 사용할 수 있다.Examples of binders included in the conductive organic polymer emulsion include polyvinyl acetate, polyvinyl alcohol, ethylene vinyl acetate, epoxy silane, acrylic resin emulsion, acrylic modified alkyd resin, urethane acrylate, chloroprene, synthetic rubber latex emulsion, and aqueous vinyl urethane. One or more selected may be used and a dispersing agent, a plasticizer, a stabilizer, or the like may be added for uniform dispersion and stability within the range of maintaining conductivity and adhesion when mixed with the conductive organic polymer.
도전성 유기고분자 에멀젼을 알루미늄호일에 코팅함에 있어 에탄올, 이소부틸알콜과 같은 저비점 알콜을 첨가함으로서 가공성을 개선하는 방식을 본 발명에도 적용할 수 있으며, 코팅면의 균일도, 유전체와의 접착성이 허용하는 한도내에서 코팅제의 전도성 개선을 위해 카본블랙, 케첸블랙, 카본파이버 등의 탄소계 첨가제나 구리, 은, 니켈과 같은 금속 분말등의 도전성 부여재를 첨가하는 것 또한 가능하다.The method of improving the processability by adding low boiling alcohols such as ethanol and isobutyl alcohol in coating the conductive organic polymer emulsion on the aluminum foil can also be applied to the present invention. It is also possible to add carbon-based additives such as carbon black, Ketjen black, carbon fiber, and conductivity-imparting materials such as metal powders such as copper, silver, and nickel to improve the conductivity of the coating agent within the limits.
코팅방법은 스핀코오트(spin coat), 스프레이(spray), 롤러(roller), 프린팅(printing) 등 설비의 제한은 없으므로, 도전성 에멀젼의 점도 등 물리적 상태를 고려하여 선택한다. 단, 본 발명의 목적품의 중요한 특성중의 하나가 균일한 발광효과이므로 코팅제의 조성이 균질해야 하며 코팅 두께 또한 일정해야 한다. 특히 코팅 두께가 일정치 않은 경우, 국지적인 임피던스값의 변화로 인해 발광면이 고르지 않게 되므로 두께의 균일도 또한 보장되어야 한다. 코팅 후 코팅면은 열풍순환 장치 또는 오븐을 이용하여 건조하는 것이 필요하다. 장시간 대기 중 노출에 의해 변질 또는 오염부담이 있다. 코팅 두께는 혼합물의 전기전도도, 접착력, 피착면의 상태를 고려해서 결정되어야 한다. 코팅막이 너무 얇으면 접착력이 저하되며, 반대로 너무 두꺼운 경우 비용 상승과 저항증가를 감수해야 한다.The coating method is not limited in equipment such as spin coat, spray, roller, printing, and the like, and is selected in consideration of physical states such as viscosity of the conductive emulsion. However, since one of the important characteristics of the object of the present invention is a uniform luminous effect, the composition of the coating agent should be homogeneous and the coating thickness should be constant. In particular, in the case where the coating thickness is not constant, the uniformity of the thickness should also be ensured since the light emitting surface becomes uneven due to the change of the local impedance value. After coating, the coated surface needs to be dried using a hot air circulation device or an oven. There is a risk of deterioration or pollution due to prolonged exposure to the atmosphere. The thickness of the coating should be determined in consideration of the electrical conductivity of the mixture, the adhesion and the state of the surface to be deposited. If the coating film is too thin, the adhesive strength is lowered. On the contrary, if the coating film is too thick, the cost is increased and the resistance is increased.
이렇게 제조된 도전성 유기고분자 코팅막의 도전성은 높을수록 유리하나 도 전성 유기 고분자의 가격에 의한 비용 상승을 고려해야 한다. 접착력이 허용하는 한도 내에서 코팅두께가 얇은 만큼 도전성은 증가하는데, 이는 도전성 유기고분자 코팅막 자체의 자체저항이 높더라도 알루미늄 박막과 양호한 접착을 유지함으로서 코팅면의 표면저항을 0.01 ~ 1ohm로 낮출 수 있기 때문이다. 본 발명의 실시예를 근거로 코팅두께는 1 ~ 4㎛, 코팅면의 표면저항은 0.01 ~ 1ohm, 알루미늄박막과 유전층사이의 접착력은 400 ~ 1000gf/25mm 이상이 바람직하다.The higher the conductivity of the conductive organic polymer coating film thus prepared is advantageous, but the cost increase due to the price of the conductive organic polymer should be considered. As the coating thickness is thinner, the conductivity increases as the adhesive strength allows. The surface resistance of the coated surface can be reduced to 0.01 ~ 1ohm by maintaining good adhesion with the aluminum thin film even though the self-resistance of the conductive organic polymer coating film itself is high. Because. Based on the embodiment of the present invention, the coating thickness is 1 ~ 4㎛, the surface resistance of the coating surface is 0.01 ~ 1ohm, the adhesion between the aluminum thin film and the dielectric layer is preferably 400 ~ 1000gf / 25mm or more.
이렇게 준비된 코팅막이 형성된 알루미늄박막을 적당한 크기로 재단하여 유전체층에 접착시킨다. 이때 접착은 핫프레스 또는 범용 라미네이터를 이용한다. 코팅제의 조성에 따라 합지속도, 온도, 압력을 조절하며, 무리한 온도와 압력은 EL의 적층구조를 파괴하거나 변질시킬수 있으므로 가열판온도 100 ~ 150℃, 1 ~ 2㎏의 압력이 바람직하다.Thus prepared aluminum thin film formed with a coating film is cut to an appropriate size and bonded to the dielectric layer. At this time, the adhesive uses a hot press or a general-purpose laminator. The lamination speed, temperature, and pressure are controlled according to the composition of the coating agent. Excessive temperature and pressure may destroy or alter the laminated structure of the EL, and thus, a heating plate temperature of 100 to 150 ° C. and a pressure of 1 to 2 kg are preferable.
도전성 유기고분자 에멀젼을 알루미늄박막이 아닌 유전층에 코팅하여 접착하는 것도 가능하나 작업이 번거로울 뿐만 아니라 시트(sheet)단위의 작업이 되므로 경제성이 저하된다. 이러한 방법이 본 발명의 취지와는 부합하지 않으나 결과적으로 같은 구조를 가지므로 알루미늄박막에 코팅하는 방식으로만 제한되지 않는다.It is also possible to coat the conductive organic polymer emulsion on a dielectric layer instead of an aluminum thin film, and to apply the conductive organic polymer emulsion. Such a method does not correspond to the spirit of the present invention, but as a result, it is not limited only to the method of coating on an aluminum thin film.
전극 조성물로는 폴리아닐린(polyaniline), 폴리파라페닐, 폴리피롤(polypyrrole), 폴리티오펜, 폴리아세틸렌(polyacetylene), 폴리메틸티오펜, 폴리이소티아나프텐, 폴리페닐렌설파이드, 폴리페닐렌옥사이드, 폴리페닐렌비닐렌, 폴리티오펜비닐렌, 폴리페리나프탈렌(PPN)중 선택되는 1종 또는 2종 이상의 혼합물, 또는 그 유도체이거나 이들을 구성하는 모노머 또는 올리고머 및 중합체의 혼합물인 도전성 유기 고분자 50 ~ 96%; 폴리비닐 아세테이트, 폴리비닐 알콜, 에틸렌비닐아세테이트, 에폭시 실란, 아크릴수지계 에멀젼, 아크릴 변성 알키드 수지, 우레탄 아크릴레이트, 클로로프렌, 합성고무 라텍스계 에멀젼, 수성비닐우레탄 중 1종 이상으로 이루어지는 바인더 4 ~ 50중량%를 혼합하여 도전성 유기고분자 에멀젼이 조성된다.The electrode composition may be polyaniline, polyparaphenyl, polypyrrole, polythiophene, polyacetylene, polymethylthiophene, polyisothianaphthene, polyphenylene sulfide, polyphenylene oxide, poly 50 to 96% of a conductive organic polymer which is one or a mixture of two or more selected from phenylene vinylene, polythiophene vinylene, polyperinaphthalene (PPN), or a derivative thereof or a mixture of monomers or oligomers and polymers constituting them. ; 4 to 50 weight of binder consisting of at least one of polyvinyl acetate, polyvinyl alcohol, ethylene vinyl acetate, epoxy silane, acrylic resin emulsion, acrylic modified alkyd resin, urethane acrylate, chloroprene, synthetic rubber latex emulsion and aqueous vinyl urethane The% is mixed to form a conductive organic polymer emulsion.
상기한 도전성 유기고분자 및 바인더는 그 종류를 한정기재하였으나, 당업자라면 유사성분을 이용하여 충분히 변경설계가 가능하다는 것을 밝혀두는 바이다.The conductive organic polymers and binders described above have a limited type, but those skilled in the art will be able to sufficiently change the design using similar components.
이하, 상기한 도전성 유기고분자가 포함된 알루미늄전극 제조에 대한 내용을 실시예를 통해 보다 구체적으로 살펴보도록 한다.Hereinafter, a description will be given in more detail through the embodiment of the production of the aluminum electrode containing the conductive organic polymer.
[실시예 1]Example 1
인듐-주석 산화물(Indium-Tin Oxide) 또는 인듐-아연산화물(Indium- Zinc Oxide)코팅된 투명전극위에 황화아연(ZnS)를 모체재료로 하고 Cu, Cl, I, Mn 등의 활성제를 유기결합제에 분산시킨 발광층, 티탄산 바륨(BaTiO3)등의 강유전체를 절연막으로 하는 유전층을 차례로 스크린 인쇄법으로 적층한다. 배면전극으로 순도 99.4%, 두께25㎛, 폭 1,000mm의 알루미늄박의 한 쪽 면에 두께 50㎛ 폭 1,000mm의 투명한 이축연신 PET 필름을 2액형 우레탄접착제를 이용하여 라미네이트한다. 이것을 다시 열풍건조실에 48시간 건조시켜 잔류용제를 제거하고 접착을 안정화 시킨다.Zinc sulfide (ZnS) is used as a mother material on a transparent electrode coated with indium tin oxide or indium zinc oxide, and active agents such as Cu, Cl, I, and Mn are applied to the organic binder. A dielectric layer using a dispersed light emitting layer and a ferroelectric such as barium titanate (BaTiO 3 ) as an insulating film is sequentially laminated by screen printing. As a back electrode, a transparent biaxially stretched PET film having a thickness of 50 μm and a width of 1,000 mm was laminated on one side of an aluminum foil having a purity of 99.4%, a thickness of 25 μm, and a width of 1,000 mm using a two-component urethane adhesive. This is again dried in a hot air drying chamber for 48 hours to remove residual solvent and stabilize adhesion.
전면의 투명전극은 실버페이스트를 두께10마이크로미터(micrometer), 폭 5mm로 버스바(bus bar)를 형성한 후 전원과 연결부분은 두께 35마이크로미터(micrometer), 폭 5mm의 동테이프를 사용하였다. 배면전극은 앞서 준비한 유전층과 같은 크기로 재단하였고 별도의 버스바(bus bar)를 형성하지 않고 폭 5mm의 동테이프 만을 이용하여 전원과의 연결부를 만들었다.The transparent electrode on the front formed a busbar with a silver paste of 10 micrometers in thickness and a width of 5 mm, and the power and connection part used a copper tape of 35 micrometers in thickness and 5 mm in width. . The back electrode was cut to the same size as the previously prepared dielectric layer and made a connection with the power source using only copper tape having a width of 5 mm without forming a separate bus bar.
작동 전원은 전압주파수변환기를 이용하여 전압150rms, 400Hz 로 공급하였고 각 실시예로 제작된 시료에 대하여 코팅층의 표면저항[ohm], 소비전력[W], 휘도[cd], 도전성코팅층의 접착력[gf/25mm]을 측정하였다.The operating power was supplied at a voltage of 150rms and 400Hz by using a voltage frequency converter, and the surface resistance [ohm], power consumption [W], brightness [cd], and adhesion strength of the conductive coating layer were applied to the samples manufactured in each example. / 25 mm] was measured.
도전성 유기고분자 코팅막의 제작Fabrication of conductive organic polymer coating film
[실시예 2] Example 2
코팅작업시 균일한 코팅 두께와 작업상의 용이함을 위해 이소부틸알콜을 혼합하였다. 도전 부여재로 첨가된 카본블랙과 니켈파우더는 코팅막 자체의 도전성을 증가시키기 위해 첨가된다. 균질한 성막을 위해 입도가 작은 것이 유리하며, 코팅막의 두께를 초과하지 않아야 하므로 각 분말의 최대 입경이 3micron미만이어야 한다. In the coating operation, isobutyl alcohol was mixed for uniform coating thickness and ease of operation. Carbon black and nickel powder added as the conductive imparting material are added to increase the conductivity of the coating film itself. Smaller particle size is advantageous for homogeneous film formation, and the maximum particle diameter of each powder should be less than 3 micron since it should not exceed the thickness of the coating film.
도전성 유기고분자 베이트론 피(baytron P;BAYER社) 95중량%에 폴리비닐알콜 3중량%, 이소부틸알콜 2중량%를 첨가하여 이루어진 도전성 유기고분자 에멀젼을 알루미늄박에 롤러(roller)코팅을 한 후 유전체 층 위로 라미네이터를 이용하여 접착하며, 이때 가열온도130℃, 압력 1kg, 진행속도 1m/min를 유지한다.After roller coating on aluminum foil, conductive organic polymer emulsion made by adding 3% by weight of polyvinyl alcohol and 2% by weight of isobutyl alcohol to 95% by weight of conductive organic polymer Baytron P (BAYER) A laminator is bonded onto the dielectric layer. At this time, a heating temperature of 130 ° C., a pressure of 1 kg, and a running speed of 1 m / min are maintained.
[실시예 3]Example 3
도전성 유기고분자 베이트론 피(baytron P;BAYER社) 90중량%에, 폴리비닐알콜 4중량%, 카본블랙 4중량%, 이소부틸알콜 2중량%를 첨가하여 이루어진 도전성 유기고분자 에멀젼을 알루미늄박에 롤러(roller)코팅을 한 후 유전체 층 위로 라미네이터를 이용하여 접착하며, 이때 가열온도130℃, 압력 1kg, 진행속도 1m/min를 유지한다.A conductive organic polymer emulsion formed by adding 4% by weight of polyvinyl alcohol, 4% by weight of carbon black, and 2% by weight of isobutyl alcohol to 90% by weight of conductive organic polymer Baytron P (BAYER) was rolled onto aluminum foil. After the roller is coated, it is laminated using a laminator on the dielectric layer. At this time, the heating temperature is maintained at 130 ° C., the pressure of 1 kg, and the running speed of 1 m / min.
[실시예 4]Example 4
도전성 유기고분자 베이트론 피(baytron P;BAYER社) 90중량%에, 폴리비닐알콜 4중량%, 니켈파우더 4중량% 및 이소부틸알콜 2중량%를 첨가하여 이루어진 도전성 유기고분자 에멀젼을 알루미늄박에 롤러(roller)코팅을 한 후 유전체 층 위로 라미네이터를 이용하여 접착하며, 이때 가열온도130℃, 압력 1kg, 진행속도 1m/min를 유지한다.To 90% by weight of conductive organic polymer BAYER P, 4% by weight of polyvinyl alcohol, 4% by weight of nickel powder, and 2% by weight of isobutyl alcohol were added to the aluminum foil. After the roller is coated, it is laminated using a laminator on the dielectric layer. At this time, the heating temperature is maintained at 130 ° C., the pressure of 1 kg, and the running speed of 1 m / min.
[실시예 5]Example 5
도전성 유기고분자 베이트론 피(baytron P;BAYER社) 90중량%에, 폴리비닐알콜 4중량%, 카본블랙 2중량%, 니켈파우더 2중량% 및 이소부틸알콜 2중량%를 첨가하여 이루어진 도전성 유기고분자 에멀젼을 알루미늄박에 롤러(roller)코팅을 한 후 유전체 층 위로 라미네이터를 이용하여 접착하며, 이때 가열온도130℃, 압력 1kg, 진행속도 1m/min를 유지하도록 한다.Conductive organic polymer Conductive organic polymer made by adding 4% by weight of polyvinyl alcohol, 2% by weight of carbon black, 2% by weight of nickel powder and 2% by weight of isobutyl alcohol to 90% by weight of baytron P (BAYER) The emulsion is coated on aluminum foil using a roller and then laminated using a laminator on the dielectric layer. At this time, the heating temperature is maintained at 130 ° C., the pressure of 1 kg and the running speed of 1 m / min.
실시예 2 내지 실시예 5의 측정 결과를 아래표에 나타내었다.The measurement results of Examples 2 to 5 are shown in the table below.
표1)Table 1
본 발명은 그 정신 또는 주요한 특징으로부터 일탈하는 일없이, 다른 여러 가지 형태로 실시할 수 있다. 전술한 실시예는 모든 점에서 단순한 예시에 지나지 않으며, 한정적으로 해석해서는 안된다. 본 발명의 범위는 특허청구의 범위에 의해서 나타나는 것으로써, 명세서 본문에 의해서는 아무런 구속도 되지 않는다. 다시, 특허청구범위의 균등범위에 속하는 변형이나 변경은, 모두 본 발명의 범위 내의 것이다.This invention can be implemented in other various forms, without deviating from the mind or main characteristic. The above-described embodiments are merely examples in all respects and should not be interpreted limitedly. The scope of the invention is indicated by the claims, and is not limited by the text of the specification. Again, all variations and modifications belonging to the equivalent scope of the claims are within the scope of the present invention.
이상에서 설명한 바와 같이 본 발명은 도전성 유기고분자를 결합제(바인더)와 혼합하여 접착가능한 도전성 코팅제를 만들고 이 코팅제를 범용코팅설비를 이용하여 알루미늄 박막에 코팅한 무기EL 램프의 배면 전극조성물과 이 배면전극을 핫프레스 또는 라미네이터로 합지하여 완성되는 무기EL램프의 구조로서, 본 발명에 의하면 무기EL램프의 내구성, 내후성을 개선함은 물론, 대면적화에 장점을 가지므로 그 활용영역이 확대된다.As described above, the present invention mixes the conductive organic polymer with a binder (binder) to form a conductive coating which can be adhered, and the back electrode composition and the back electrode of the inorganic EL lamp coated on the aluminum thin film using a general coating facility. Is a structure of an inorganic EL lamp completed by laminating a hot press or a laminator. According to the present invention, the durability and weather resistance of the inorganic EL lamp are improved, as well as the advantage of large area, and thus the application area thereof is expanded.
또한 본 발명에 의하여 제작공정이 단순화되므로 제품의 생산 원가를 절감시켜 경쟁력이 제고되는 경제적인 효과를 얻을 수 있다.In addition, since the manufacturing process is simplified according to the present invention, it is possible to reduce the production cost of the product and obtain an economic effect of enhancing the competitiveness.
Claims (7)
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