KR20010028543A - Conductive paste composite and it's making method and rear electrode formation method for electroluminescent device by it. - Google Patents

Conductive paste composite and it's making method and rear electrode formation method for electroluminescent device by it. Download PDF

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Publication number
KR20010028543A
KR20010028543A KR1019990040826A KR19990040826A KR20010028543A KR 20010028543 A KR20010028543 A KR 20010028543A KR 1019990040826 A KR1019990040826 A KR 1019990040826A KR 19990040826 A KR19990040826 A KR 19990040826A KR 20010028543 A KR20010028543 A KR 20010028543A
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South Korea
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organic vehicle
conductive paste
oil
paste
metal powder
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KR1019990040826A
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Korean (ko)
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박종주
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김선득
휘스코 주식회사
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Priority to KR1019990040826A priority Critical patent/KR20010028543A/en
Publication of KR20010028543A publication Critical patent/KR20010028543A/en

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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B33/00—Electroluminescent light sources
    • H05B33/02—Details
    • H05B33/06—Electrode terminals
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
    • H01B1/02—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of metals or alloys
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
    • H01B1/06—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of other non-metallic substances
    • H01B1/12—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of other non-metallic substances organic substances
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
    • H01B1/20—Conductive material dispersed in non-conductive organic material
    • H01B1/22—Conductive material dispersed in non-conductive organic material the conductive material comprising metals or alloys
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B33/00—Electroluminescent light sources
    • H05B33/10—Apparatus or processes specially adapted to the manufacture of electroluminescent light sources

Abstract

PURPOSE: Provided is a composition for manufacturing a paste which has proper physical, and chemical characteristics including flexibility so that the paste forms accurate electrode patterns and has reliable electric characteristics. CONSTITUTION: A composition for manufacturing a paste for rear electrode of an electroluminescent device includes 60.0-75.0% of flake type silver powder and 25.0-40.0% of organic vehicle. The organic vehicle is composed of 6.0-10.0% of ethyl cellulose, 2.0-4.0% of ester gum resin, 4.0-7.0% of hydroabietyl alcohol, 55.5-64.8% of kerosene oil, 13.8-16.2% of mineral spirits oil, and 7.0-10.0% of octyl alcohol. And a method for manufacturing the paste is as follows. The paste materials are spread through screen printing method on the dielectric layer of the electroluminescent device and dried at 100-150 deg.C for 2-20 minutes to form electrodes.

Description

도전성 페이스트 조성물 및 이의 제조방법과 이를 이용한 전계발광소자의 배면 전극 형성 방법{Conductive paste composite and it's making method and rear electrode formation method for electroluminescent device by it.}Conductive paste composition and method for manufacturing same and method for forming back electrode of electroluminescent device using the same {conductive paste composite and it's making method and rear electrode formation method for electroluminescent device by it.}

본 발명은 전계발광소자(Electroluminescent device)의 배면전극의 형성에 사용되는 도전성 페이스트(Paste)(이하 "도전성 페이스트"라 칭한다)에 관한 것으로, 특히 폴리머 레진(Polymer resin)과 솔벤트(Solvent)의 종류 및 첨가량에 따라 우수한 도막특성을 가지며, 전기적 특성 및 유전체층과의 접착강도 및 Compatibility 등이 우수하다.BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a conductive paste (hereinafter referred to as a "conductive paste") used to form a back electrode of an electroluminescent device, and in particular, a kind of polymer resin and a solvent. And according to the addition amount has excellent coating film properties, electrical properties, adhesion strength and dielectric layer and excellent compatibility.

전계발광소자(Electroluminescent device)는 일반적으로 투명전극으로 쓰이는 ITO(Indium Tin Oxide) Film 위에 스크린 인쇄법으로 형광체 층을 인쇄하고 건조한 후 형광체층 위에 유전체 층을 인쇄하여 형성하고 다시 건조한 후 배면전극인 도전성 페이스트 전극층을 인쇄하여 형성시켜 건조한 후 리드선(Lead wire)을 조립하여 제조한다.Electroluminescent devices are generally formed by printing a phosphor layer on an indium tin oxide (ITO) film, which is used as a transparent electrode, by screen printing. The paste electrode layer is printed and formed, dried, and then assembled by assembling lead wires.

전계발광소자(Electroluminescent device)용 도전성 페이스트는 현재 거의 대부분을 수입에 의존하고 있는 실정이며 따라서 국내의 기술력 또한 매우 취약한 실정이다. 도전성 페이스트의 물성 및 전기적 특성에 따라 전계발광소자의 품질 및 신뢰성에 미치는 영향이 크므로 원가를 절감하고, 국내의 기술적 노하우 축적 및 전계발광소자의 신뢰성을 높이고, 매년 30% 이상의 수요 증가세를 보이는 전계발광소자의 생산량에 대응하여 원자재 수입대체효과의 극대화 및 동남아, 유럽, 북미 등지의 수출상품 추진이 시급한 실정이다.Electroconductive pastes for electroluminescent devices are currently very much dependent on imports, and therefore domestic technology is also very weak. Depending on the physical and electrical properties of the conductive paste, the impact on the quality and reliability of the electroluminescent device is significant, thus reducing costs, accumulating domestic technical know-how and reliability of the electroluminescent device, and increasing demand by more than 30% annually. In response to the production of light emitting devices, it is urgent to maximize the effect of import substitution of raw materials and promote export products in Southeast Asia, Europe, and North America.

도전성 페이스트는 60.0-75.0%의 도전성 금속분말과 유기 비이클(Vehicle)로구성되는데, 이때 유기 비이클은 도전성 페이스트의 유동성 및 건조성을 결정하며, 도전성 금속분말의 분산성을 좌우한다. 금속분말의 분산성이 나쁜 경우에는 도포되는 도전성 페이스트의 양이 많아져 원가를 높이며, 균일한 도포가 이루어지지 않아 전계발광소자의 신뢰성 및 특성이 저하되고, 특히 도전성 페이스트의 유동성이 적절치 않은 경우에도 도포 두께의 편차, 기계적 접착강도 감소 및 치밀하지 못한 전극형성으로 인한 표면전기저항특성 감소 등 전계발광소자의 전기적 특성 및 유전체층과의 결합력의 약화와 구조적인 결함을 야기시켜 고 신뢰성을 요구하는 제품생산을 불가능하게 한다. 도전성 페이스트가 적절한 유동성 및 물리화학적 특성을 갖게하여 스크린 인쇄법(Screen printing method)에 의한 전극 형성시 양호한 전극 형성과 건조 후 고 신뢰성의 전기적 특성을 만족하는 전계발광소자의 배면전극용 도전성 페이스트(Paste) 전극 조성물 및 그의 제조방법을 제공하는 것이다.The conductive paste consists of 60.0-75.0% of the conductive metal powder and the organic vehicle, wherein the organic vehicle determines the fluidity and dryness of the conductive paste, and determines the dispersibility of the conductive metal powder. In the case where the dispersibility of the metal powder is poor, the amount of the conductive paste to be applied is increased to increase the cost, and uniform coating is not performed, thereby deteriorating the reliability and characteristics of the electroluminescent device, especially when the fluidity of the conductive paste is not appropriate. Production of products requiring high reliability by causing weakening of the electrical characteristics of the electroluminescent device and bonding strength with the dielectric layer and structural defects such as variation in coating thickness, reduction of mechanical adhesive strength and reduction of surface electrical resistance characteristics due to incomplete electrode formation. Makes it impossible. Conductive paste for back electrode of electroluminescent device which satisfies high electrode reliability and high reliability after drying by forming the electrode by screen printing method because the conductive paste has proper fluidity and physicochemical properties. ) And an electrode composition and a method of manufacturing the same.

상기 목적을 달성하기 위하여 안출된 본 발명을 상세히 설명하고자 한다.In order to achieve the above object, the present invention will be described in detail.

본 발명의 도전성 페이스트 조성물은 도전성 금속분말 60.0-75.0%와 유기 비이클 25.0-40.0%의 비율로 구성된다. 도전성 금속분말로는 100% 은(Silver)을 사용하되 전극의 치밀한 Packing density 및 건조 후 전기적 특성을 증대시키기 위하여 판상형(Flake type)을 사용하며, 이 판상형은(Flake type Silver) 분말은 이 분야에서 널리 알려진 통상의 공침법 (Corecipitation method)으로 제조되고, 은분말의 탭덴시티(Tapdensity)는 2.0-4.5g/cc 인 것이 사용되고, 비표면적(Specific surface area)은 1.0-2.5m2/g인 것이 사용된다.The electrically conductive paste composition of this invention is comprised by the ratio of 60.0-75.0% of conductive metal powder and 25.0-40.0% of an organic vehicle. 100% silver is used as the conductive metal powder, but the Flake type is used to increase the dense packing density of the electrode and the electrical properties after drying. This Flake type Silver powder is well known in the art. It is manufactured by a conventional cocipitation method, the tapdensity of silver powder is used 2.0-4.5g / cc, the specific surface area is used is 1.0-2.5m 2 / g.

또한 본 발명에서 유기비이클의 조성은 매우 중요한데 그 이유는 도전성 페이스트의 유동성 및 건조성을 결정하며 도전성 금속분말의 분산성을 좌우하기 때문이다. 이와 같은 도전성 페이스트 조성물의 유동성 및 건조성, 분산성을 양호하게 하기 위하여 본 발명의 유기 비이클은 다음과 같은 조성을 갖는다.In addition, in the present invention, the composition of the organic vehicle is very important because it determines the fluidity and dryness of the conductive paste and influences the dispersibility of the conductive metal powder. In order to improve the fluidity, dryness, and dispersibility of such a conductive paste composition, the organic vehicle of the present invention has the following composition.

에틸셀룰로스(Ethyl cellulose) : 6.0-10.0%Ethyl cellulose: 6.0-10.0%

에스테르 검 레진(Ester gum resin) : 2.0-4.0%Ester gum resin: 2.0-4.0%

아비톨((Hydroabietyl Alcohol) : 4.0-7.0%Avitol ((Hydroabietyl Alcohol): 4.0-7.0%

케로젠 오일(Kerosene oil) : 55.2-64.8%Kerosene oil: 55.2-64.8%

미네랄스피릿 오일(Mineral spirits oil) : 13.8-16.2%Mineral spirits oil: 13.8-16.2%

옥틸알콜(Octyl alcohol) : 7.0-10.0%Octyl alcohol: 7.0-10.0%

상기조성중 에스테르 검 레진(Ester gum resin, Glycerol ester of wood rosin)은 로진(Rosin)수지로부터 얻어지는 일종의 에스텔 수지로써 연노랑색이며 인쇄잉크 및 바니쉬용 수지로 많이 쓰이는 열가소성 수지(연화점 80-96℃, 비중 1.07-1.08)인 미국 허클리스사 제품이다.The ester gum resin (Glycerol ester of wood rosin) is a kind of ester resin obtained from rosin resin and is light yellow and is a thermoplastic resin (softening point 80-96 ℃, specific gravity) used as a resin for printing ink and varnish. 1.07-1.08).

먼저 상기 조성을 갖는 유기 비이클의 각각의 성분을 칭량하고 칭량된 이들 원료를 스테인레스스틸 (Stainless steel) 용기에 넣어 유화교반기(Emulsifier)로 교반하면서 완전히 용해시켜 유기비이클을 제조한다.First, each component of the organic vehicle having the above composition is weighed, and these weighed raw materials are placed in a stainless steel container and completely dissolved while stirring with an emulsifier to prepare an organic vehicle.

다음 상기와 같이 제조된 유기비이클 25.0-40.0%와 공침법으로 제조된 도전성 금속분말인 100% 판상형 은(100% Silver,Flake type)을 60.0-75.0%의 조성비율로 칭량하여 넣고 유성혼합기(Planetary mixer)내에서 진공을 유지하면서 혼합하며, 유기비이클과 은분말이 고르게 혼합되도록 약 3-4시간정도 교반한다. 이때 휘발된 용매는 그 양을 칭량하여 케로젠 80%대 미네랄스피릿 20%의 비율로 혼합된 용제로 보충하여 인쇄에 적절한 점도를 유지토록 한다.Next, the organic vehicle 25.0-40.0% prepared as described above and 100% plate-shaped silver (100% Silver, Flake type), which is a conductive metal powder prepared by the coprecipitation method, were weighed at a composition ratio of 60.0-75.0%, and a planetary mixer (Planetary) was added. Mix while maintaining vacuum in the mixer, and stir for about 3-4 hours to evenly mix the organic vehicle and silver powder. At this time, the volatilized solvent is weighed and replenished with a mixed solvent in a ratio of 80% of kerosene to 20% of mineral spirit to maintain a viscosity suitable for printing.

교반이 완료된 혼합물은 페이스트(Paste)상태가 되며, 완전히 혼합된 페이스트(paste)를 계속하여 3롤밀(Three-roll mill)에 통과시켜 FOG(Fineness of grind)가 10㎛이하가 되도록 하여 본 발명의 도전성 페이스트 조성물을 얻는다.After the stirring is completed, the mixture becomes a paste state, and the mixed mixture is continuously passed through a three-roll mill so that the fineness of grind (FOG) is 10 μm or less. An electroconductive paste composition is obtained.

본 발명에 이용된 도전성 금속분말과 이로부터 제조된 도전성 페이스트의 특성을 표1에 나타내었다.Table 1 shows the characteristics of the conductive metal powder used in the present invention and the conductive paste prepared therefrom.

표 1Table 1

이하 본 발명의 구체적인 실시예와 함께 비교예를 기재한다.Hereinafter, a comparative example is described together with specific examples of the present invention.

실시예 1.Example 1.

a. 조성(%)a. Furtherance(%)

＜유기 비이클 조성＞<Organic vehicle composition>

에틸셀룰로스(Ethyl cellulose) : 6.0%Ethyl cellulose: 6.0%

에스테르 검 레진(Ester gum resin) : 2.0%Ester gum resin: 2.0%

아비톨(Hydroabietyl Alcohol) : 4.0%Avibite (Hydroabietyl Alcohol): 4.0%

케로젠 오일(Kerosene oil) : 64.8%Kerosene oil: 64.8%

미네랄스피릿 오일(Mineral spirits oil) : 16.2%Mineral spirits oil: 16.2%

옥틸알콜(Octyl alcohol) : 7.0%Octyl alcohol: 7.0%

＜페이스트(paste) 조성＞<Paste composition>

상기 유기비이클 : 30.0%The organic vehicle: 30.0%

도전성금속분말(100% Silver, Flake type) : 70.0%Conductive metal powder (100% Silver, Flake type): 70.0%

b. 페이스트의 제조 및 그 응용b. Preparation of pastes and their application

상기 유기비이클을 구성하는 각각의 성분을 칭량 한 후 이들을 스테인레스 스틸용기내에서 유화교반기로 교반, 용해시켜 유기비이클을 제조 한 다음, 유기비이클 30.0%와 도전성금속분말(100% Silver,Flake type) 70.0%에 해당하는 양을 칭량하여 유성혼합기내에서 진공을 유지하며 혼합하여 유기비이클과 은(Silver)분말이 고르게 혼합되도록 약 3-4시간정도 교반한다. 계속하여 믹싱한 혼합물을 3롤밀(Three-roll mill)에 3회 이상 통과시켜 FOG가 10㎛이하가 되도록 하여 본 발명의 도전성 페이스트 조성물을 얻는다.After weighing each component constituting the organic vehicle, the organic vehicle was prepared by stirring and dissolving them in an stainless steel container with an emulsifying stirrer, followed by 30.0% of the organic vehicle and the conductive metal powder (100% Silver, Flake type) 70.0. Weigh the amount corresponding to% and maintain the vacuum in the planetary mixer to mix and stir for about 3-4 hours so that the organic vehicle and the silver powder are evenly mixed. Subsequently, the mixed mixture is passed through a three-roll mill three or more times so that the FOG is 10 µm or less to obtain the conductive paste composition of the present invention.

이와 같이 제조된 도전성 페이스트 조성물을 전계발광소자의 유전체층 위에 스크린 인쇄법(Screen printing method)으로 도포하여 120℃에서 5분동안 건조하여 전극층을 형성하고 투명전극층과 배면전극층에 리드선(Lead wire)을 조립함으로써 전계발광소자를 제조하였다.The conductive paste composition thus prepared is applied onto the dielectric layer of the electroluminescent device by a screen printing method and dried at 120 ° C. for 5 minutes to form an electrode layer, and assembling lead wires to the transparent electrode layer and the back electrode layer. Thus, an electroluminescent device was manufactured.

제조된 전계발광소자의 전극외관특성 및 분산성(Dispersion)과 전극의 치밀성 및 미세구조 특성을 광학현미경을 사용하여 검사하였고, 유전체층과의 접착성은 양층간의 층분리 현상의 발생여부로 검사하였으며, 유전체 층에 대한 도전성 페이스트의 Attack성 역시 도전성 페이스트 전극 층의 침투여부로 검사하였다.Electrode appearance and dispersion of the fabricated electroluminescent device and the density and microstructure of the electrode were examined using an optical microscope, and the adhesion to the dielectric layer was examined by the occurrence of layer separation between the two layers. The attack of the conductive paste on the dielectric layer was also examined by the penetration of the conductive paste electrode layer.

실시예 2.Example 2.

a. 조성(%)a. Furtherance(%)

＜유기 비이클 조성＞<Organic vehicle composition>

에틸셀룰로스(Ethyl cellulose) : 7.0%Ethyl cellulose: 7.0%

에스테르 검 레진(Ester gum resin) : 2.0%Ester gum resin: 2.0%

아비톨(Hydroabietyl Alcohol) : 5.0%Avibite (Hydroabietyl Alcohol): 5.0%

케로젠 오일(Kerosene oil) : 62.4%Kerosene oil: 62.4%

미네랄스피릿 오일(Mineral spirits oil) : 15.6%Mineral spirits oil: 15.6%

옥틸알콜(0ctyl alcohol) : 8.0%Octyl alcohol: 8.0%

＜페이스트(paste) 조성＞<Paste composition>

상기 유기비이클 : 30.0%The organic vehicle: 30.0%

도전성금속분말(100% Silver, Flake type) 70.0%Conductive Metal Powder (100% Silver, Flake Type) 70.0%

b. 페이스트의 제조 및 그 응용b. Preparation of pastes and their application

실시예 1과 동일하나 상기 조성비율에 따라 제조하였으며, 건조 조건 역시 동일하며, 검사방법 또한 동일하다.Same as Example 1, but was prepared according to the composition ratio, the drying conditions are also the same, the inspection method is also the same.

실시예 3.Example 3.

a. 조성(%)a. Furtherance(%)

＜유기 비이클 조성＞<Organic vehicle composition>

에틸셀룰로스(Ethyl cellulose) : 8.0%Ethyl cellulose: 8.0%

에스테르 검 레진(Ester gum resin) : 2.0%Ester gum resin: 2.0%

아비톨(Hydroabietyl Alcohol) : 6.0%Avibite (Hydroabietyl Alcohol): 6.0%

케로젠 오일(Kerosene oil) : 60.8%Kerosene oil: 60.8%

미네랄스피릿 오일(Mineral spirits oil) : 15.2%Mineral spirits oil: 15.2%

옥틸알콜(0ctyl alcohol) : 8.0%Octyl alcohol: 8.0%

＜페이스트(paste) 조성＞<Paste composition>

상기 유기비이클 : 30.0%The organic vehicle: 30.0%

도전성 금속분말(100% Silver, Flake type) 70.0%Conductive Metal Powder (100% Silver, Flake Type) 70.0%

b. 페이스트의 제조 및 그 응용b. Preparation of pastes and their application

실시예 1과 동일하나 상기 조성비율에 따라 제조하였으며, 건조 조건 역시 동일하며, 검사방법 또한 동일하다.Same as Example 1, but was prepared according to the composition ratio, the drying conditions are also the same, the inspection method is also the same.

실시예 4.Example 4.

a. 조성(%)a. Furtherance(%)

＜유기 비이클 조성＞<Organic vehicle composition>

에틸셀룰로스(Ethyl cellulose) : 9.0%Ethyl cellulose: 9.0%

에스테르 검 레진(Ester gum resin) : 3.0%Ester gum resin: 3.0%

아비톨(Hydroabietyl Alcohol) : 7.0%Avitol (Hydroabietyl Alcohol): 7.0%

케로젠 오일(Kerosene oil) : 59.2%Kerosene oil: 59.2%

미네랄스피릿 오일(Mineral spirits oil) : 14.8%Mineral spirits oil: 14.8%

옥틸알콜(0ctyl alcohol) : 8.0%Octyl alcohol: 8.0%

＜페이스트(paste) 조성＞<Paste composition>

상기 유기비이클 : 30.0%The organic vehicle: 30.0%

도전성금속분말(100% Silver, Flake type) 70.0%Conductive Metal Powder (100% Silver, Flake Type) 70.0%

b. 페이스트의 제조 및 그 응용b. Preparation of pastes and their application

실시예 1과 동일하나 상기 조성비율에 따라 제조하였으며, 건조 조건 역시 동일하며, 검사방법 또한 동일하다.Same as Example 1, but was prepared according to the composition ratio, the drying conditions are also the same, the inspection method is also the same.

비교예 1.Comparative Example 1.

a. 조성(%)a. Furtherance(%)

＜유기 비이클 조성＞<Organic vehicle composition>

에틸셀룰로스(Ethyl cellulose) : 5.0%Ethyl cellulose: 5.0%

에스테르 검 레진(Ester gum resin) : 2.0%Ester gum resin: 2.0%

아비톨((Hydroabietyl Alcohol) : 4.0%Avitol ((Hydroabietyl Alcohol): 4.0%

케로젠 오일(Kerosene oil) : 66.4%Kerosene oil: 66.4%

미네랄스피릿 오일(Mineral spirits oil) : 16.6%Mineral spirits oil: 16.6%

옥틸알콜(Octyl alcohol) : 6.0%Octyl alcohol: 6.0%

＜페이스트 조성＞<Paste composition>

상기 유기비이클 : 30.0%The organic vehicle: 30.0%

도전성금속분말(100% Silver, Flake type) 70.0%Conductive Metal Powder (100% Silver, Flake Type) 70.0%

b. 페이스트의 제조 및 그 응용b. Preparation of pastes and their application

실시예 1과 동일하나 상기 조성비율에 따라 제조하였으며, 건조 조건 역시 동일하며, 검사방법 또한 동일하다.Same as Example 1, but was prepared according to the composition ratio, the drying conditions are also the same, the inspection method is also the same.

비교예 2.Comparative Example 2.

a. 조성(%)a. Furtherance(%)

＜유기 비이클 조성＞<Organic vehicle composition>

에틸셀룰로스(Ethyl cellulose) : 11.0%Ethyl cellulose: 11.0%

에스테르 검 레진(Ester gum resin) : 2.0%Ester gum resin: 2.0%

아비톨((Hydroabietyl Alcohol) : 4.0%Avitol ((Hydroabietyl Alcohol): 4.0%

케로젠 오일(Kerosene oil) : 61.6%Kerosene oil: 61.6%

미네랄스피릿 오일(Mineral spirits oil) : 15.4%Mineral spirits oil: 15.4%

옥틸알콜(0ctyl alcohol) : 6.0%Octyl alcohol: 6.0%

＜페이스트 조성＞<Paste composition>

상기 유기비이클 : 30.0%The organic vehicle: 30.0%

도전성금속분말(100% Silver, Flake type) 70.0%Conductive Metal Powder (100% Silver, Flake Type) 70.0%

b. 페이스트의 제조 및 그 응용b. Preparation of pastes and their application

실시예 1과 동일하나 상기 조성비율에 따라 제조하였으며, 건조 조건 역시 동일하며, 검사방법 또한 동일하다.Same as Example 1, but was prepared according to the composition ratio, the drying conditions are also the same, the inspection method is also the same.

다음은 실시예 1-4와 비교예 1-2에서의 검사 결과를 종합하여 표 2에 기재하였다Next, Table 2 summarizes the test results in Examples 1-4 and Comparative Examples 1-2.

표 2TABLE 2

비교예에 비하여, 본 발명에 따른 실시예 1-4의 도전성 페이스트 조성물은 분산성 및 도포상태가 양호하였으며, 이들 도전성 페이스트 조성물로 제조된 전계발광소자는 유전체층과 배면전극층의 접착성 및 Compatibility, 전극 치밀성 역시매우 우수하고, 따라서 소자의 수명 및 휘도(Brightness)가 우월함을 알 수 있어, 본 발명은 제조원가가 저렴하고 유동성 및 분산성, 스크린프린팅에 의한 도포, 치밀한 전극특성, 유전체층과의 접착성 등이 양호한 도전성 페이스트 전극 조성물을얻을 수 있고 건조 후 고신뢰성의 전기적 특성을 만족하는 전계발광소자의 배면전극을 형성할 수 있는 산업적으로 매우 유용한 발명이다.Compared with the comparative example, the conductive paste composition of Examples 1-4 according to the present invention had good dispersibility and coating state, and the electroluminescent device made of these conductive paste compositions had the adhesion and compatibility between the dielectric layer and the back electrode layer, and the electrode. It can be seen that the compactness is also very good, and thus the device life and brightness are superior. Therefore, the present invention is inexpensive to manufacture and has low fluidity and dispersibility, application by screen printing, dense electrode properties, adhesion to dielectric layers, etc. It is an industrially very useful invention which can obtain this favorable conductive paste electrode composition and can form the back electrode of the electroluminescent element which satisfies the high reliability electrical characteristics after drying.

Claims (4)

도전성 금속분말과 유기 비이클로 구성된 도전성 페이스트 조성물에 있어서, 도전성 금속분말로 판상형의 100% 은(Silver) 분말 60.0-75.0%와 유기비이클 25.0-40.0%로 구성되며, 상기 유기비이클(Organic vehicle)은 에틸셀룰로스(Ethyl cellulose) : 6.0-10.0%, 에스테르 검 레진(Ester gum resin) : 2.0-4.0%, 아비톨(Hydroabietyl Alcohol) : 4.0-7.0%, 케로젠 오일(Kerosene oil) : 55.2-64.8%, 미네랄스피릿 오일(Mineral spirits oil) : 13.8-16.2%, 옥틸알콜(0ctyl alcohol) : 7.0-10.0%로 구성됨을 특징으로 하는 도전성 페이스트 조성물.In the conductive paste composition consisting of a conductive metal powder and an organic vehicle, the conductive metal powder is composed of a plate-shaped 100% silver powder 60.0-75.0% and an organic vehicle 25.0-40.0%, the organic vehicle (Organic vehicle) Ethyl cellulose: 6.0-10.0%, ester gum resin: 2.0-4.0%, avitol (Hydroabietyl Alcohol): 4.0-7.0%, kerosene oil: 55.2-64.8% , Mineral spirit oil (Mineral spirits oil): 13.8-16.2%, octyl alcohol (0ctyl alcohol): conductive paste composition, characterized in that consisting of 7.0-10.0%. 제 1항에 있어서, 도전성 금속분말인 판상형의 100% 은(silver) 분말은 비표면적이 2.5m2/g이하이고 탭밀도가 3.5g/cc이상인 것을 특징으로 하는 도전성 페이스트 조성물.The conductive paste composition according to claim 1, wherein the plate-shaped 100% silver powder, which is a conductive metal powder, has a specific surface area of 2.5 m 2 / g or less and a tap density of 3.5 g / cc or more. 에틸셀룰로스(Ethyl cellulose) : 6.0-10.0%, 에스테르 검 레진(Ester gum resin) : 2.0-4.0%,아비톨(Hydroabietyl Alcohol) : 4.0-7.0%, 케로젠 오일 (Kerosene oil) : 55.2-64.8%, 미네랄스피릿 오일(Mineral spirits oil) : 13.8-16.2%, 옥틸알콜(0ctyl alcohol) : 7.0-10.0%에 해당하는 량을 칭량하여 스텐레스용기에 넣고 유화교반기로 교반, 완전용해시킨 유기비이클 25.0-40.0%와 도전성 금속분말로 판상형의 100%은 60.0-75.0%에 해당하는 양을 칭량, 유성혼합기로 혼합하여 유기비이클과 은분말이 고르게 잘 혼합되도록 3-4시간동안 교반 한 후 3-롤-밀에서 밀링시켜 고상도 70±1.0%, 점도 60.0kcps, FOG 10㎛ 이하가 되도록 제조함을 특징으로 하는 도전성 페이스트 조성물의 제조방법.Ethyl cellulose: 6.0-10.0%, ester gum resin: 2.0-4.0%, avitol (Hydroabietyl Alcohol): 4.0-7.0%, kerosene oil: 55.2-64.8% , Mineral spirits oil (Mineral spirits oil): 13.8-16.2%, octyl alcohol: 7.0-10.0% of the amount weighed in a stainless steel container and stirred with an emulsion stirrer, completely dissolved organic vehicle 25.0-40.0 % And conductive metal powder, 100% of the plate-type, 60.0-75.0% of the amount, mixed with a weighing and planetary mixer to stir the organic vehicle and silver powder evenly mixed for 3-4 hours and then in a 3-roll-mill Method for producing a conductive paste composition, characterized in that the milling to be prepared so that the solid phase 70 ± 1.0%, viscosity 60.0kcps, FOG 10㎛ or less. 제1항과 제2항의 도전성 페이스트 조성물을 전계발광소자의 유전체층 위에 스크린인쇄법(Screen printing method)으로 도포하여, 100-150℃에서 2-20분간 건조시켜 전극을 형성하는 것을 특징으로 하는 전계발광소자의 전극 형성 방법.Electroluminescent light-emitting, characterized in that the conductive paste composition of claim 1 and 2 is applied on the dielectric layer of the electroluminescent device by screen printing method, and dried at 100-150 ° C. for 2-20 minutes to form an electrode. Method for forming electrode of device.
KR1019990040826A 1999-09-21 1999-09-21 Conductive paste composite and it's making method and rear electrode formation method for electroluminescent device by it. KR20010028543A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100735462B1 (en) * 2003-12-29 2007-07-03 삼성전기주식회사 Slurry for dielectric ceramic green sheet
KR100786758B1 (en) * 2006-12-11 2007-12-18 한국생산기술연구원 Conductive paste composition
WO2008038976A1 (en) * 2006-09-29 2008-04-03 Lg Chem, Ltd. Organic silver complex compound used in paste for conductive pattern forming

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100735462B1 (en) * 2003-12-29 2007-07-03 삼성전기주식회사 Slurry for dielectric ceramic green sheet
WO2008038976A1 (en) * 2006-09-29 2008-04-03 Lg Chem, Ltd. Organic silver complex compound used in paste for conductive pattern forming
KR100786758B1 (en) * 2006-12-11 2007-12-18 한국생산기술연구원 Conductive paste composition

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