KR20020072423A - Thick Film EL & it's Production Method - Google Patents

Thick Film EL & it's Production Method Download PDF

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Publication number
KR20020072423A
KR20020072423A KR1020010012386A KR20010012386A KR20020072423A KR 20020072423 A KR20020072423 A KR 20020072423A KR 1020010012386 A KR1020010012386 A KR 1020010012386A KR 20010012386 A KR20010012386 A KR 20010012386A KR 20020072423 A KR20020072423 A KR 20020072423A
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KR
South Korea
Prior art keywords
thick film
manufacturing
film
production method
resultant structure
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Application number
KR1020010012386A
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Korean (ko)
Inventor
임재진
Original Assignee
(주)이엘비젼
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Priority to KR1020010012386A priority Critical patent/KR20020072423A/en
Publication of KR20020072423A publication Critical patent/KR20020072423A/en

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Classifications

    • 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
    • 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
    • H05B33/12—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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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Electroluminescent Light Sources (AREA)

Abstract

PURPOSE: A thick film electroluminescence device and method for manufacturing the same is provided to reduce size, weight of the device and manufacturing cost. CONSTITUTION: A method for manufacturing thick film electroluminescence device, comprises a first step of coating an insulating material to an aluminum foil and drying the resultant structure; a second step of coating a fluorescent material and drying the resultant structure; a third step of performing an Ag sputtering process to the surface of the fluorescent layer; a fourth step of performing a sheeting or slitting process; a fifth step of attaching an electrode to the resultant structure; and a sixth step of forming a protective film.

Description

후막 EL 및 제조방법 {Thick Film EL ＆ it's Production Method}Thick Film EL & It's Production Method

본 발명은 후막 EL의 제보방법, 특히 투명전극층의 형성방법에 관한 것이다. 종래의 후막 EL의 제조방식은 크게 두가지로 구분할 수 있다.The present invention relates to a method of reporting a thick film EL, in particular a method of forming a transparent electrode layer. The conventional thick film EL production method can be largely divided into two types.

첫 번째 방식은 도 1과 같이 Al호일(Roll 상태)위에 절연층과 형광층을 코팅한 후 시트로 만든 다음 ITO필름과 라미네이팅에 의해 합체하고 그 외부를 PE나 PCTFE와 같은 필름으로 라미네이팅하여 밀봉한 후 후막 EL을 제조하는 방식이다.The first method is to coat the insulating layer and the fluorescent layer on the Al foil (Roll state) as shown in Figure 1 and then made into a sheet and then coalesced by laminating with ITO film and laminated outside and sealed with a film such as PE or PCTFE The thick film EL is produced.

두 번째 방식으로는 도 2와 같이 ITO필름위에 형광층과 절연층을 스크린 인쇄한 후 흑연이나 은페이스트를 스크린 인쇄하여 도전층을 형성한 다음 마지막으로 보호막을 형성하여 후막 EL을 제조하는 방식이 널리 사용되어 왔다.As a second method, as shown in FIG. 2, the fluorescent layer and the insulating layer are screen printed on the ITO film, and the conductive layer is formed by screen printing graphite or silver paste, and finally, the protective film is formed to form a thick film EL. Has been used.

..

도 1은 롤 코팅방식에 의한 종래방식이다.1 is a conventional method by a roll coating method.

도 2는 스크린 인쇄에 의한 종래방식이다.2 is a conventional method by screen printing.

도 3은 증착에 의한 투명전극 형성방식이다.3 is a transparent electrode formation method by deposition.

종래기술에서는 후막 EL의 제조에 사용되는 투명전극은 ITO필름을 사용하고 있으나 값이 비싸고 다루기 힘든 재료로써 후막 EL의 원가나 생산성에 영향을 크게 미치고 있다.In the prior art, although the transparent electrode used in the manufacture of the thick film EL uses an ITO film, it is an expensive and intractable material and greatly affects the cost and productivity of the thick film EL.

본 발명에서는 후막 EL의 제조방식에 있어 도 3과 같이 Al호일(Roll 상태)위에 절연층과 형광층을 코팅하고 바로 Roll상태에서 증착기술(진공열증착이나 스퍼터링)에 의해 ITO나 이보다 저렴한 Ag(은)나 Al(알루미늄)과 같은 가능한 한 백색계열의 도전성 금속물질을 수십∼수백Å의 두께로 증착하여 투명전극으로 사용한다.In the present invention, in the manufacturing method of the thick film EL, as shown in FIG. 3, an insulating layer and a fluorescent layer are coated on Al foil (Roll state), and in the roll state, ITO or cheaper Ag ( White conductive metal materials such as silver) and Al (aluminum) are deposited to a thickness of tens to hundreds of microwatts to be used as transparent electrodes.

이 경우 기존 후막 EL의 제조방식에 비해 ITO필름의 두께(보통 0.1mm)만큼의 경박화 할 수 있으며 가장 원가부담이 큰 재료를 사용하지 않으므로서 대폭적인 원가절감이 가능하게 된다.In this case, the thickness of the ITO film (usually 0.1mm) can be reduced as compared to the conventional thick film EL manufacturing method, and the cost reduction is possible without using the material with the greatest cost burden.

또한 탄성이 높은 PET필름을 사용한 ITO필름이 사용되지 않아 후막 EL의 가공성이 현저히 개선되어 여러 응용분야에 적용이 가능하다.In addition, since the ITO film using the PET film with high elasticity is not used, the processability of the thick film EL is remarkably improved, and thus it can be applied to various applications.

상기에 서술한 것처럼 본 발명의 방식으로 후막 EL을 제조할 경우 원자재의 원가절감 및 가공성의 개선을 통해 여러 응용분야의 적용되는 효과를 얻을 수 있다.As described above, when the thick film EL is produced by the method of the present invention, the effect of being applied to various applications can be obtained through the cost reduction and the workability of raw materials.

Claims (1)

통상의 후막 EL의 구조에 있어 투명전극의 형성시 증착(진공열증착 또는 스퍼터링)방식을 사용한 것을 특징으로 후막 EL 및 그 제조방식.A thick film EL and a method of manufacturing the same, characterized in that a deposition (vacuum deposition or sputtering) method is used in forming a transparent electrode in the structure of a conventional thick film EL.
KR1020010012386A 2001-03-09 2001-03-09 Thick Film EL & it's Production Method KR20020072423A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020010012386A KR20020072423A (en) 2001-03-09 2001-03-09 Thick Film EL & it's Production Method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020010012386A KR20020072423A (en) 2001-03-09 2001-03-09 Thick Film EL & it's Production Method

Publications (1)

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KR20020072423A true KR20020072423A (en) 2002-09-16

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010067851A (en) * 2001-04-03 2001-07-13 정동은 An electro luminescence lamp of the sheet type

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010067851A (en) * 2001-04-03 2001-07-13 정동은 An electro luminescence lamp of the sheet type

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