KR100763030B1 - Protecting method conductive film for electronic equipment display manufacturing - Google Patents

Protecting method conductive film for electronic equipment display manufacturing Download PDF

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KR100763030B1
KR100763030B1 KR1020060014478A KR20060014478A KR100763030B1 KR 100763030 B1 KR100763030 B1 KR 100763030B1 KR 1020060014478 A KR1020060014478 A KR 1020060014478A KR 20060014478 A KR20060014478 A KR 20060014478A KR 100763030 B1 KR100763030 B1 KR 100763030B1
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conductive film
film
adhesive composition
weight
protective paper
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KR20070082123A (en
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장영재
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(주)영진텍
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B5/00—Non-insulated conductors or conductive bodies characterised by their form
    • H01B5/14—Non-insulated conductors or conductive bodies characterised by their form comprising conductive layers or films on insulating-supports
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18—Manufacture of films or sheets
    • 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
    • H01B1/04—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of carbon-silicon compounds, carbon or silicon

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Adhesive Tapes (AREA)
  • Adhesives Or Adhesive Processes (AREA)

Abstract

본 발명은 각종 전자기기의 플랙시블 디스 플레이(Flexible display)제조 분야에서 도전성필름(ITO Film)을 사용하여 표시부에 전자의 움직임이 빛으로 보이도록 하는 작업(EL작업 이라 약칭함)을 할 때 사용하는 도전성필름에 관한 것으로 구체적으로는 도전성필름에 표시부와 터치부를 형성할 때 도전성필름의 두께를 얇게 하면서도 안전하게 작업대에 장착시켜 인쇄작업을 할 수 있도록 하는 도전성필름을 얻기 위한 것이며 The present invention is used in the manufacturing of flexible display of various electronic devices in the field of flexible display (ITO Film) to make the movement of electrons to the display part (light abbreviation EL operation) to make the movement of light visible. The present invention relates to a conductive film, which is specifically intended to obtain a conductive film that can be printed on the workbench by thinning the thickness of the conductive film when the display unit and the touch unit are formed on the conductive film.

그 수단은 도전성필름을 보다 얇게 제조하여 준비하는 단계와 The means for preparing a thinner conductive film and preparing

내열성필름(1)의 표면에 점착성조성물(2)을 5~100μm 두께로 도포하여 보호지(가)를 제조하는 단계와 Preparing a protective paper (a) by applying the adhesive composition (2) to the surface of the heat-resistant film (1) to a thickness of 5 ~ 100μm and

얇아진 도전성필름의 이면에 보호지를 부착하여 두께를 보상하는 단계로 이루어져 도전성필름을 작업대에 부착할 때 도전성 필름이 작업대에 작용하는 흡인력의 영향을 받지 않고 안전하게 장착되어 인쇄작업이 가능토록 하고 인쇄작업 후에 보호지를 떼어냄으로써 보다 얇은 두께의 디스 플레이를 제조할 수 있게 하는 것이다.Compensating the thickness by attaching a protective paper to the back side of the thinner conductive film. When the conductive film is attached to the workbench, the conductive film can be safely mounted without being affected by the suction force acting on the workbench to enable printing work and after the printing work. By removing the protective paper, a thinner display can be manufactured.

도전성필름, 내열성필름, 보호지, 작업대  Conductive Film, Heat Resistant Film, Protective Paper, Work Table

Description

전자기기 플랙시블 디스 플레이 제조용 도전성 필름의 제조방법{PROTECTING METHOD CONDUCTIVE FILM FOR ELECTRONIC EQUIPMENT DISPLAY MANUFACTURING}PROCESSING METHOD CONDUCTIVE FILM FOR ELECTRONIC EQUIPMENT DISPLAY MANUFACTURING

도 1은 본 발명의 제조방법이 실시된 도전성 필름의 구성예시도1 is a structural example of a conductive film subjected to the manufacturing method of the present invention

도 2는 본 발명의 제조방법이 실시된 도전성 필름을 작업대에 부착시켜 인쇄한 예시도이다.Figure 2 is an exemplary view printed by attaching a conductive film subjected to the manufacturing method of the present invention to a work table.

* 도면의 주요부분에 대한 부호설명* Explanation of symbols on the main parts of the drawings

가 : 보호지 1 : 내열성필름1: Protective paper 1: Heat-resistant film

2 : 점착성조성물 3 : 도전성필름 4 : 터치부 5 : 작업대2: adhesive composition 3: conductive film 4: touch part 5: working table

본 발명은 각종 전자기기의 플랙시블 디스 플레이(Flexible display)제조 분야에서 도전성필름(ITO Film)을 사용하여 표시부에 전자의 움직임이 빛으로 보이도록 하는 작업(EL 작업이라함)을 할 때 도전성필름의 두께를 보다 더 얇게 하여 작업을 할 수 있도록 하는 도전성필름의 제조방법에 관한 것이다.The present invention uses a conductive film (ITO Film) in the field of manufacturing a flexible display of various electronic devices, the conductive film when the movement of the electrons to the display unit to see the light (called EL work) It relates to a method for producing a conductive film to make the thickness of the work more thinner.

정보기술(Information technology) 분야의 기술이 발달함에 따라 제품의 두께가 얇아지고 경량화됨에 따라 전기장발광부(EL)의 두께가 점점더 얇아지는 추세에 있으며 이를 위해 도전성 필름의 표면에 직접 표시부와 터치부를 인쇄하는 것이 보편화 되어 있다.As technology of information technology develops, the thickness of electric field light emitting part (EL) becomes thinner and thinner as the product thickness becomes thinner and lighter. For this, the display part and the touch part directly on the surface of the conductive film Printing is commonplace.

그러나 종래의 도전성 필름은 표면에 터치부를 인쇄하기 위해 흡인력이 작용하는 작업대에 도전성 필름을 밀착시켜 흡인력으로 고정하고 그 표면에 인쇄작업을 하기 때문에 도전성 필름이 흡인력을 받을 때 변형이 되지 않을 정도로 필름의 두께를 유지해야 하므로 적어도 75μm ~ 125μm 의 두께를 가지도록 도전성 필름을 제조하여야 하고 이로 인해 도전성 필름의 두께를 75μm 이하로 만들 수 없는 한계가 있으므로 제조비용이 많이 드는 불편이 있었다.However, in the conventional conductive film, the conductive film is closely adhered to the workbench where the suction force is applied to print the touch part on the surface, and the conductive film is fixed to the suction force and the printing operation is performed on the surface thereof. Since the thickness must be maintained, the conductive film should be manufactured to have a thickness of at least 75 μm to 125 μm, and thus, there is a limitation in that the thickness of the conductive film cannot be made 75 μm or less, which causes inconvenience in manufacturing cost.

본 발명은 위와 같은 종래의 결점을 해소하기 위하여 개발된 것으로 도전성 필름의 두께를 5~75μm 으로 얇게 제조하고 (적절하게는 25μm 정도) 그 이면에 떼어낼 수 있는 점착성 보호지를 부착하여 도전성필름을 보호시킴으로써 작업대에 장치할 때는 보호지를 부착하여 표시부 또는 터치부(4)를 인쇄하고 인쇄가 종료된 후에는 보호지를 떼어내고 제품화할 수 있는 도전성필름을 제조함으로써 도전성필름의 두께를 75μm 보다 얇게 제조하여 보다 얇은 두께의 디스플레이 제조가 가능토록 한 것이다.The present invention has been developed to solve the above-mentioned drawbacks of the present invention is to produce a thin film thickness of 5 ~ 75μm (appropriately 25μm) of the conductive film is attached to the back of the adhesive protective paper that can be removed to protect the conductive film By attaching a protective sheet when printing on the workbench and printing the display unit or the touch unit 4, and after the printing is completed, a conductive film that can be removed and commercialized can be manufactured to make the thickness of the conductive film thinner than 75 μm. It is possible to manufacture displays with thin thicknesses.

이를 첨부된 도면에 의거 상세히 설명하면 다음과 같다.This will be described in detail with reference to the accompanying drawings.

본 발명은 두께 5~75μm으로 제조한 도전성필름(3)을 준비하는 단계와 The present invention comprises the steps of preparing a conductive film (3) manufactured to a thickness of 5 ~ 75μm

내열성을 가진 필름(1)(예:PET필름, PC필름, PEN필름, PES필름)에 자체 퍼짐이 좋고 전단력이 높으며 벗김 강도가 낮은 성질을 가진 점착성조성물로(2)을 5~100μm 두께로 도포하여 보호지(가)를 제조하는 단계와 Apply the adhesive composition (2) to the thickness of 5 ~ 100μm with excellent self-spreading property, high shearing force and low peeling strength on the heat-resistant film (1) (e.g. PET film, PC film, PEN film, PES film) To prepare the protective paper

도전성필름(3)의 이면에 떼어낼 수 있게 상기 보호지(가)를 부착하여 도전성 필름의 두께를 보상하는 단계로 이루어지는 도전성필름의 제조방법이다.The protective film (A) is attached to the back surface of the conductive film (3) to compensate for the thickness of the conductive film is a manufacturing method of the conductive film.

상기에서 점착성 조성물로 된 보호지(가)는 Protective paper made of the adhesive composition (a)

4-하이드록시 부틸 애크러레이트(4-Hydroxy butyl acrylate)와,
카프로락톤 애크러레이트(Carprolactone Acrylate)와, 아크릴산(Acrylic acid)으로 조성된 접착제에 첨가제(개시제)와 희석제(용제)(톨루앤, 에칠알콜)를 가하여 고형분이 20~50중량% 범위로 유지되게 조성시킨 점착성조성물로 만들어지고 이를 내열성필름(1) 표면에 5~100μm 두께로 도포하여 제조한 것을 보호지(가)로 사용하게 되며 상기 점착성조성물을 얻기 위한 바람직한 조성은
접착제인 4-하이드록시 부틸 애크러레이트(4-Hydroxy butyl acrylate), 카프로락톤 애크러레이트(Carprolactone Acrylate), 아크릴산(Acrylic acid)을 40중량% : 40중량% : 20중량%의 비율로 혼합하거나 10~80중량% : 80~10중량% : 1~20% 또는 20~1중량%의 비율중에서 선택한 비율로 적절하게 혼합하고 개시제로 과산화벤조일(Benzoyl peroxide)(약칭 BPO) 또는 아조비스이소부티로니트릴(azobisisobutyronitrile)(약칭AIBN) 1중량%를 혼합함과 동시에 용제(Solvent)로 톨루앤(Tolune) 과 에칠알콜(Ethyl alcohol) 을 50중량% : 50중량% 또는 40중량% : 60중량%의 비율로 혼합하여 고형분이 20~50중량% 범위가 되도록 조성함으로써 본 발명에 적합한 점착성 조성물을 제조할 수 있고 이를 내열성필름(1)의 표면에 도포하여 제품화함으로써 점착성 보호지의 제조가 가능하고 또한 상기 점착성조성물은 아크릴계 점착제가 아니더라도 공지의 실리콘계 점착제로 제조되는 것을 포함하게 된다.4-hydroxy butyl acrylate (4-Hydroxy butyl acrylate),
Additives (initiator) and diluent (solvent) (toluene, ethyl alcohol) were added to adhesives composed of caprolactone acrylate and acrylic acid to maintain solids in the range of 20 to 50% by weight. It is made of a pressure-sensitive adhesive composition and applied to the surface of the heat-resistant film (1) with a thickness of 5 ~ 100μm to use as a protective paper (A) and the preferred composition for obtaining the pressure-sensitive adhesive composition is
4-Hydroxy butyl acrylate, Carprolactone Acrylate, and acrylic acid, which are adhesives, may be mixed at a ratio of 40 wt%: 40 wt%: 20 wt% 10 to 80% by weight: 80 to 10% by weight: 1 to 20% or 20 to 1% by weight of the ratio selected from the ratio selected appropriately and the initiator Benzoyl peroxide (abbreviated BPO) or azobisisobutyro A mixture of 1% by weight of nitrile (azobisisobutyronitrile) (AIBN) and 50% by weight of 50% by weight or 50% by weight or 40% by weight of 60% by weight of toluene and ethyl alcohol as a solvent. By mixing in a ratio to form a solid content in the range of 20 to 50% by weight to prepare a pressure-sensitive adhesive composition suitable for the present invention by applying it to the surface of the heat-resistant film (1) to produce a pressure-sensitive protective paper and also to the adhesive The composition is an acrylic adhesive Even if you will include those made of a known silicone-based adhesive.

삭제delete

이와 같이 된 본 발명은 도전성 필름의 두께가 5~75μm 으로 기존의 도전성 필름 보다 얇게 제조한 다음 그 이면에 내열성 필름(1)에 점착성조성물(2)을 도포한 점착성 보호지(가)를 부착하기 때문에 얇은 도전성 필름(3)이 보호지(가)에 의하여 두께가 두터워 지게 되므로 작업대에 부착하면 작업대에 작용하는 흡인력이 보호지(가)에 작용하고 도전성필름에는 그 흡인력이 미치지 않게 되어 작업대에 안전하게 도전성 필름을 부착시킬 수 있고 본 발명의 점착성 조성물은 퍼짐성이 좋고 절단력이 높으며 벗김강도가 낮은성질을 가지기 때문에 도전성필름을 확고하게 잡아주어 인쇄작업을 원활하게 할 수 있게 된다.According to the present invention, the thickness of the conductive film is 5 to 75 μm, which makes the thinner than the conventional conductive film, and then attaches the adhesive protective paper (A) on which the adhesive composition 2 is applied to the heat resistant film 1. Since the thin conductive film 3 is thickened by the protective paper (a), when it is attached to the work table, the suction force acting on the work table acts on the protective paper and the conductive film does not have the suction force. Since the adhesive composition of the present invention can be attached and has high spreadability, high cutting force, and low peel strength, the adhesive composition can be firmly held by the conductive film to facilitate the printing operation.

따라서 본 발명의 도전성 필름은 표시부나 터치부(4) 형성에 필요한 1도인쇄→ 건조, 2도인쇄→ 건조, 3도인쇄→ 건조 등의 과정을 거치면서 인쇄작업을 필요한 대로 원활하게 할 수 있으며 인쇄작업후 인쇄물을 건조시켜서 작업대(5)에서 분리시키고 이면에 부착된 보호지(가)를 떼어내면 보호지의 부착흔적이 남지 않고 떨어지게 되므로 5μm ~75μm 되는 얇은 도전성 필름에 표시부와 터치부가 인쇄된 디스플레이 제품을 얻을 수 있고 이로인해 기존의 인쇄시설과 건조장치를 그대로 이용하면서 두께가 현저하게 얇은 디스플레이 제품생산을 달성할 수 있기 때문에 제조비용을 절약할 수 있는 얇은 디스플레이 제조에 기여할 수 있게 되는 이점을 얻는 것이다.Therefore, the conductive film of the present invention can smoothly perform the printing operation as necessary while undergoing a process such as 1 degree printing → drying, 2 degree printing → drying, 3 degree printing → drying required for forming the display unit or the touch unit 4. Display product printed on display and touch part on thin conductive film of 5μm ~ 75μm because the printed paper is dried and separated from work table (5) and the protective paper (a) attached to the backside is removed without leaving traces of the protective paper. It is possible to obtain a thinner display product by using a conventional printing facility and a drying device, thereby contributing to the manufacture of a thin display that can reduce manufacturing costs. .

Claims (6)

도전성필름(3)을 두께 5μm ~ 75μm 으로 준비하는 준비단계와 The preparation step of preparing the conductive film 3 to a thickness of 5μm ~ 75μm and 내열성필름(예 : PET필름, PC필름, PEN필름, PES필름)(1)의 표면에 점착성 조성물(2)을 5~100μm 두께로 도포하여 보호지(가)를 제조하는 단계와 Preparing protective paper (a) by applying a pressure-sensitive adhesive composition (2) on the surface of the heat-resistant film (for example, PET film, PC film, PEN film, PES film) 1 to a thickness of 5 ~ 100μm; 상기 도전성필름(3)의 이면에 보호지(가)를 떼어낼 수 있게 부착하는 단계로 이루어지는 전자기기용 플랙시블 디스 플레이 제조용 도전성 필름의 제조방법Method of manufacturing a conductive film for manufacturing a flexible display for the electronic device comprising the step of attaching the protective paper (A) to the back surface of the conductive film (3) to be detachable. 상기1항에서 보호지(가)는 내열성필름(1)에 점착성조성물(2)을 5~100μm 두께로 도포하여 구성시킨 점착성 보호지일 것을 포함하는 전자기기용 플랙시블 디스 플레이 제조용 도전성 필름의 제조방법In claim 1, the protective paper (A) is a method of manufacturing a conductive film for manufacturing a flexible display for an electronic device, including a sticky protective paper formed by applying the adhesive composition (2) to the heat-resistant film (1) in a thickness of 5 ~ 100μm. 상기1항에서 점착성 조성물은 실리콘계 점착물일 것을 특징으로 하는 전자기기용 플랙시블 디스 플레이 제조용 도전성 필름의 제조방법The adhesive composition according to claim 1, wherein the adhesive composition is a silicone-based adhesive. 상기1항에서 점착성 조성물은 4-하이드록시 부틸 애크러레이트(4-Hydroxy butyl acrylate)와, 카프로락톤 애크러레이트(Carprolactone Acrylate)와, 아크릴산(Acrylic acid)으로 조성된 접착제에 개시제인 과산화벤조일(BPO)과 The adhesive composition according to claim 1 is a 4-hydroxy butyl acrylate (4-Hydroxy butyl acrylate), a caprolactone acrylate (Carprolactone Acrylate) and acrylic acid (Acrylic acid) in the adhesive composition of the benzoyl peroxide ( BPO) 아조비스이소부티로니트릴(AIBN)과 용제인 톨루엔(Tolune)과 에칠알콜(Ethyl alcohol)을 혼합하여 고형물이 20~50중량%로 유지되게 제조한 것일 것을 특징으로 하는 전자기기용 플랙시블 디스 플레이 제조용 도전성 필름의 제조방법Azobisisobutyronitrile (AIBN) and a solvent toluene (Tolune) and ethanol (Ethyl alcohol) by mixing to prepare a flexible display for the electronic device, characterized in that the solid is maintained at 20 to 50% by weight Manufacturing method of conductive film 상기1항에서 점착성조성물은 실리콘계 점착제를 포함하는 것을 특징으로 하는 전자기기용 플랙시블 디스 플레이 제조용 도전성 필름의 제조방법The adhesive composition according to claim 1, wherein the adhesive composition comprises a silicone-based adhesive. 제5항에 있어서, 점착성 조성물은 접착제인 4-하이드록시 부틸 애크러레이트(4-Hydroxy butyl acrylate), 카프로락톤 애크러레이트(Carprolactone Acrylate), 아크릴산(Acrylic acid)을 40중량% : 40중량% : 20중량% 비율로 혼합하고 개시제로 과산화벤조일(Benzoyl peroxide) 또는 아조비스이소부티로니트릴(AIBN) 1중량%와 The adhesive composition of claim 5, wherein the adhesive composition comprises 40% by weight of 40 wt% of 4-hydroxy butyl acrylate, Carprolactone Acrylate, and acrylic acid, which are adhesives. : 1% by weight of benzoyl peroxide or azobisisobutyronitrile (AIBN) as an initiator 용제(Solvent)로 톨루앤(Tolune) 과 에칠알콜(Ethyl alcohol) 을 50중량% : 50중량% 또는 40중량% : 60중량%의 비율로 혼합하여 고형분이 20~50중량% 범위가 되게 조성한 점착물로 이루어져 내열성 필름(1)에 도포할 수 있게 조성한 것을 포함하는 전자기기용 플랙시블 디스 플레이 제조용 도전성 필름의 제조방법Toluene and Ethyl alcohol are mixed in 50% by weight or 50% by weight or 40% by 60% by weight as a solvent to form solids in the range of 20 to 50% by weight. Method for producing a conductive film for manufacturing a flexible display for an electronic device, comprising a composition made of water so as to be coated on the heat resistant film (1)
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Citations (4)

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Publication number Priority date Publication date Assignee Title
JPH0266811A (en) * 1988-08-31 1990-03-06 Nitto Denko Corp Manufacture of transparent conductive lamination body
JPH0266809A (en) * 1988-08-31 1990-03-06 Nitto Denko Corp Transparent conductive lamination body
KR20030001273A (en) * 2001-06-27 2003-01-06 가부시키가이샤 브리지스톤 Transparent electroconductive film and touch panel
JP2006012737A (en) 2004-06-29 2006-01-12 Tdk Corp Object provided with transparent conductive layer and transferring conductive film

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0266811A (en) * 1988-08-31 1990-03-06 Nitto Denko Corp Manufacture of transparent conductive lamination body
JPH0266809A (en) * 1988-08-31 1990-03-06 Nitto Denko Corp Transparent conductive lamination body
KR20030001273A (en) * 2001-06-27 2003-01-06 가부시키가이샤 브리지스톤 Transparent electroconductive film and touch panel
JP2006012737A (en) 2004-06-29 2006-01-12 Tdk Corp Object provided with transparent conductive layer and transferring conductive film

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