KR101432049B1 - Double sided adhesive tape for display window - Google Patents

Double sided adhesive tape for display window Download PDF

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Publication number
KR101432049B1
KR101432049B1 KR1020120101445A KR20120101445A KR101432049B1 KR 101432049 B1 KR101432049 B1 KR 101432049B1 KR 1020120101445 A KR1020120101445 A KR 1020120101445A KR 20120101445 A KR20120101445 A KR 20120101445A KR 101432049 B1 KR101432049 B1 KR 101432049B1
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adhesive layer
adhesive tape
double
layer
display window
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KR1020120101445A
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Korean (ko)
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KR20140044969A (en
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고경남
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대원케미칼(주)
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    • 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
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/20—Adhesives in the form of films or foils characterised by their carriers
    • C09J7/22—Plastics; Metallised plastics
    • 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
    • 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
    • C09J133/00—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Adhesives based on derivatives of such polymers
    • C09J133/04—Homopolymers or copolymers of esters
    • 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
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
    • C09J7/38—Pressure-sensitive adhesives [PSA]
    • C09J7/381—Pressure-sensitive adhesives [PSA] based on macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
    • C09J7/385—Acrylic polymers
    • 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
    • C09J2203/00—Applications of adhesives in processes or use of adhesives in the form of films or foils
    • C09J2203/318—Applications of adhesives in processes or use of adhesives in the form of films or foils for the production of liquid crystal displays
    • 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
    • C09J2301/00—Additional features of adhesives in the form of films or foils
    • C09J2301/10—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet
    • C09J2301/12—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers
    • C09J2301/124—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers the adhesive layer being present on both sides of the carrier, e.g. double-sided adhesive tape
    • 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
    • C09J2301/00—Additional features of adhesives in the form of films or foils
    • C09J2301/30—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier
    • C09J2301/302—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier the adhesive being pressure-sensitive, i.e. tacky at temperatures inferior to 30°C
    • 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
    • C09J2301/00—Additional features of adhesives in the form of films or foils
    • C09J2301/40—Additional features of adhesives in the form of films or foils characterized by the presence of essential components
    • C09J2301/41—Additional features of adhesives in the form of films or foils characterized by the presence of essential components additives as essential feature of the carrier layer

Abstract

본 발명에 의한 양면점착테이프는 디스플레이 패널의 디스플레이 윈도우와 디스플레이 어셈블리 간에 삽입되어 상호 부착시키는 양면점착테이프로서, 순차적으로 적층되고 각각 흑색안료를 함유하는 제1점착층과 폴리우레탄층 및 제2점착층을 포함할 수 있다. 이때, 상기 흑색안료는 카본블랙, 산화철, 산화구리, 산화주석 및 이의 혼합물로 구성된 군에서 선택된 하나 이상으로 된다. 또한, 상기 제1점착층 및 제2점착층의 조성은 85~90wt%의 아크릴계 수지와 10~15wt%의 카본블랙을 포함할 수 있고, 상기 폴리우레탄층의 조성은 80~85wt%의 폴리우레탄과 15~20wt%의 카본블랙을 포함할 수 있다.The double-faced pressure-sensitive adhesive tape according to the present invention is a double-faced pressure-sensitive adhesive tape which is inserted between mutually adhering and adhered between a display window of a display panel and a display assembly, comprising a first adhesive layer sequentially laminated and containing a black pigment, a polyurethane layer and a second adhesive layer . ≪ / RTI > At this time, the black pigment is at least one selected from the group consisting of carbon black, iron oxide, copper oxide, tin oxide, and mixtures thereof. The composition of the first adhesive layer and the second adhesive layer may include 85 to 90 wt% of an acrylic resin and 10 to 15 wt% of carbon black, and the composition of the polyurethane layer is 80 to 85 wt% And 15 to 20 wt% of carbon black.

Description

디스플레이 원도우용 양면점착테이프 {DOUBLE SIDED ADHESIVE TAPE FOR DISPLAY WINDOW}{DOUBLE SIDED ADHESIVE TAPE FOR DISPLAY WINDOW}

본 발명은 디스플레이 윈도우용 양면점착테이프에 관한 것으로, 특히 차광효과는 물론 뛰어난 방수성 및 방습성의 효과를 갖는 양면점착테이프에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a double-sided pressure-sensitive adhesive tape for a display window, and more particularly to a double-faced pressure-sensitive adhesive tape having an excellent waterproofing and moisture-proofing effect as well as a shading effect.

일반적으로, 액정(LCD) 패널, PDP(플라즈마 디스플레이 패널), 유기 EL 패널 등의 여러 디스플레이 패널이나, 베어칩 실장 등의 전자부품과 회로기판 간을 접착 고정하고 전기적으로 접속하는 수단으로서 양면점착테이프가 사용된다.BACKGROUND ART In general, as a means for adhesively fixing and electrically connecting an electronic component such as a liquid crystal (LCD) panel, a PDP (plasma display panel), and an organic EL panel or an electronic component such as a bare chip mounting to a circuit board, Is used.

도 1은 통상의 휴대폰이나 태블릿에 사용되는 디스플레이 패널(100)을 간략히 도시한다. 도 1을 참조하면, 휴대폰이나 태블릿에 사용되는 디스플레이 패널(100)에 있어서, 디스플레이 윈도우(120)와 디스플레이 어셈블리(140) 간에 양면점착테이프(130)가 삽입되어 이들을 상호 접착 고정하게 된다. 1 schematically shows a display panel 100 used in a conventional mobile phone or tablet. Referring to FIG. 1, a double-sided adhesive tape 130 is inserted between a display window 120 and a display assembly 140 in a display panel 100 used for a mobile phone or a tablet, thereby fixing them together.

이러한 양면점착테이프(130)는 상기 디스플레이 패널(100)의 종단부를 고정하고 먼지 등 외부 불순물의 침입을 방지하는 기능을 한다. 뿐만 아니라, 양면점착테이프(130)는 액정(LCD) 패널의 경우 이의 후방에 배치된 백라이트로부터 조사되는 빛이 디스플레이 패널(100)의 테두리부에서 새는 것을 방지하는 것도 요구된다. 이에 관련하여 일본 공개특허공보 제2002-23663호(2002. 1. 23 공개)에서는 착색기재의 적어도 일면에 착색층을 설치한 착색시트가 개시된 바 있다.The double-sided adhesive tape 130 fixes the end portion of the display panel 100 and functions to prevent intrusion of external impurities such as dust. In addition, in the case of a liquid crystal (LCD) panel, the double-sided adhesive tape 130 is also required to prevent light emitted from the backlight disposed behind it from leaking at the edge of the display panel 100. [ Japanese Unexamined Patent Application Publication No. 2002-23663 (published on Mar. 23, 2002) discloses a coloring sheet provided with a colored layer on at least one surface of a colored substrate.

그러나, 통상의 휴대폰이나 태블릿이 일상생활에 안전하게 사용되기 위해서는 상기 양면점착테이프(130)는 그 부착부위를 통해 상기 디스플레이 패널(100) 내부로 습기 및 물의 침투를 방지하는 것이 특히 요구된다. However, in order for a normal mobile phone or tablet to be used safely in daily life, it is particularly required that the double-sided adhesive tape 130 is prevented from penetrating moisture and water into the display panel 100 through the attachment portion thereof.

이에, 본 발명은 디스플레이 패널의 디스플레이 윈도우와 디스플레이 어셈블리 간에 삽입되어 상호 부착시키는 양면점착테이프로서 차광효과는 물론 뛰어난 방수성 및 방습성의 효과를 갖는 양면점착테이프를 제공하기 위한 것이다.Accordingly, the present invention is to provide a double-sided pressure-sensitive adhesive tape which is inserted between display windows of a display panel and a display assembly to be mutually adhered, and which has not only a light-shielding effect but also excellent waterproofness and moisture-proofness.

상기 목적을 달성하기 위하여 본 발명에 의한 양면점착테이프는 디스플레이 패널의 디스플레이 윈도우와 디스플레이 어셈블리 간에 삽입되어 상호 부착시키는 양면점착테이프로서, 순차적으로 적층되고 각각 흑색안료를 함유하는 제1점착층과 폴리우레탄층 및 제2점착층을 포함할 수 있다.In order to achieve the above object, the double-sided adhesive tape according to the present invention is a double-sided adhesive tape inserted between and mutually adhered between a display window of a display panel and a display assembly, comprising a first adhesive layer sequentially laminated and containing a black pigment, Layer and a second adhesive layer.

이때, 상기 흑색안료는 카본블랙, 산화철, 산화구리, 산화주석 및 이의 혼합물로 구성된 군에서 선택된 하나 이상으로 될 수 있다. At this time, the black pigment may be at least one selected from the group consisting of carbon black, iron oxide, copper oxide, tin oxide, and mixtures thereof.

또한, 상기 제1점착층 및 제2점착층의 조성은 아크릴계 수지를 포함할 수 있고, 85~90wt%의 아크릴계 수지와 10~15wt%의 카본블랙을 포함할 수 있다. 또한, 상기 제1점착층 및 제2점착층의 두께는 각각 25~50㎛일 수 있다. In addition, the composition of the first adhesive layer and the second adhesive layer may include an acrylic resin, and may include 85 to 90 wt% of an acrylic resin and 10 to 15 wt% of carbon black. The thicknesses of the first adhesive layer and the second adhesive layer may each be 25 to 50 탆.

또한, 상기 폴리우레탄층의 조성은 80~85wt%의 폴리우레탄과 15~20wt%의 카본블랙을 포함할 수 있고, 그 두께는 50~150㎛일 수 있다.The composition of the polyurethane layer may include 80 to 85 wt% of polyurethane and 15 to 20 wt% of carbon black, and the thickness may be 50 to 150 mu m.

또한, 상기 양면점착테이프는 상기 제2점착층 상에 부착된 이형지를 더 포함할 수 있다.The double-sided pressure-sensitive adhesive tape may further include a release paper on the second pressure-sensitive adhesive layer.

본 발명에 의한 양면점착테이프는 디스플레이 패널에 사용되어 차광효과는 물론 뛰어난 방수성 및 방습성의 효과를 갖는다.The double-sided pressure-sensitive adhesive tape according to the present invention is used in a display panel, and has an excellent waterproof and moisture-proof effect as well as a light-shielding effect.

도 1은 통상의 휴대폰이나 태블릿에 사용되는 디스플레이 패널(100)의 개략구조도.
도 2는 본 발명에 의한 디스플레이 원도우용 양면점착테이프의 개략 구조도1 is a schematic structural view of a display panel 100 used in a conventional mobile phone or tablet.
2 is a schematic structural view of a double-sided adhesive tape for a display window according to the present invention

이하, 본 발명을 도면을 참조하며 상세히 설명한다.Hereinafter, the present invention will be described in detail with reference to the drawings.

도 2는 본 발명에 의한 디스플레이 원도우용 양면점착테이프의 개략 구조도이다.2 is a schematic structural view of a double-sided adhesive tape for a display window according to the present invention.

도 2를 참조하면, 본 발명에 의한 디스플레이 원도우용 양면점착테이프는 순차적으로 적층된 점착층(12)과, 폴리우레탄층(14) 및 점착층(16)을 포함하여 구성된다. 또한, 사용 편의를 위하여 상기 점착층(16) 상에는 통상의 공지된 이형지층(18)이 부착됨이 바람직하며, 이러한 이형지층(18)은 디스플레이 패널로의 부착에 앞서 먼저 분리된다. 또한, 각각 하술하듯이 이러한 점착층(12), 폴리우레탄층(14) 및 점착층(16)에는 디스플레이 윈도우(또는, 디스플레이 패널) 내의 빛이 그의 테두리부에서 새는 것을 방지함과 동시에 이에 입사된 외부로부터의 빛을 흡수함으로써 디스플레이 패널의 화질을 강조하고 점착된 바닥면이 보이지 않도록 하는 차광효과를 가질 수 있다.Referring to FIG. 2, the double-sided adhesive tape for a display window according to the present invention comprises a pressure sensitive adhesive layer 12, a polyurethane layer 14 and an adhesive layer 16 sequentially laminated. Also, for convenience of use, it is preferable to adhere a conventionally known release layer 18 on the adhesive layer 16, and this release layer 18 is first separated before adhering to the display panel. The adhesive layer 12, the polyurethane layer 14, and the adhesive layer 16 prevent light in the display window (or the display panel) from leaking at the edges of the adhesive layer 12, as will be described later, It is possible to have a light-shielding effect that emphasizes the image quality of the display panel by absorbing light from the outside and prevents the adhered bottom surface from being seen.

본 발명에 있어서, 상기 점착층(12)(16)은 아크릴계 고분자수지 등 점착제로서 해당 분야에서 공지된 물질이라면 모두 가능하다. 이러한 아크릴계 수지의 예로는, 아크릴 에스테르 코폴리머, 에틸아크릴레이트, 부틸아크릴레이트, 헥실아크릴레이트, n-옥틸아크릴레이트, 이소옥틸아크릴레이트, 2-에틸헥실아크릴레이트, 이소노닐아크릴레이트, 라우릴아크릴레이트, 아크릴산, 말레인산, 푸마르산, 이타콘산, 크립톤산, 아크릴 아미드, N-비닐 피롤리돈, N-비닐 카프로락탐, 아크릴로니트릴, 아크릴로일 모르폴린, 2-히드록시에틸아크릴레이트, 2-히드록시프로필아크릴레이트, 2-히드록시부틸아크릴레이트 등을 포함하며, 특히 아크릴 에스테르 코폴리머가 유리하다. 또한, 점착층(12)(16)은 25~50㎛의 두께로 됨이 바람직하다.In the present invention, the adhesive layers 12 and 16 may be any materials known in the art, such as an acrylic polymer resin. Examples of the acrylic resin include acrylic ester copolymers such as acrylic ester copolymers, ethyl acrylate, butyl acrylate, hexyl acrylate, n-octyl acrylate, isooctyl acrylate, 2-ethylhexyl acrylate, isononyl acrylate, lauryl acrylate Acrylates such as acrylic acid, maleic acid, fumaric acid, itaconic acid, kryptonic acid, acrylamide, N-vinylpyrrolidone, N-vinylcaprolactam, acrylonitrile, acryloylmorpholine, 2- Hydroxypropyl acrylate, 2-hydroxybutyl acrylate and the like, and particularly acrylic ester copolymers are advantageous. It is also preferable that the adhesive layers 12 and 16 have a thickness of 25 to 50 mu m.

또한, 점착층(12)(16)은 전술하였듯이 차광효과의 효율을 높이기 위해 그 색상이 흑색안료를 포함함이 가장 유리하다. 이에 따라, 카본블랙, 블랙 안료, 블랙 염료, 산화철, 산화구리, 산화주석 및 이의 혼합물을 포함한 해당 분야에 공지된 물질이 사용될 수 있다. 특히, 본 발명에서 유리하게는 카본블랙 코팅된 아크릴계 고분자 수지로 되며, 일 예로서 점착층(12)(16)의 조성은 85~90wt%의 아크릴 수지와 10~15wt%의 카본블랙으로 이루어진다.Further, as described above, the adhesive layers 12 and 16 are most advantageous in that the color thereof includes a black pigment in order to increase the efficiency of the shading effect. Accordingly, materials known in the art including carbon black, black pigment, black dye, iron oxide, copper oxide, tin oxide, and mixtures thereof can be used. In particular, the present invention advantageously comprises a carbon black coated acrylic polymer resin. In one embodiment, the adhesive layers 12 and 16 are composed of 85 to 90 wt% of acrylic resin and 10 to 15 wt% of carbon black.

또한, 폴리우레탄층(14)은 흑색안료 및 수지를 함유할 수 있으며, 이러한 흑색안료로서는 카본블랙, 블랙 안료, 블랙 염료, 산화철, 산화구리, 산화주석 및 이의 혼합물을 포함한 해당 분야에 공지된 재료가 사용될 수 있고, 상기 수지로서는 폴리우레탄수지로 됨이 바람직하다. 이러한 폴리우레탄층(14) 조성의 일 실시예는 80~85wt%의 폴리우레탄과 15~20wt%의 카본블랙으로 이루어진다. 다른 실시예들로서, 카본블랙이 함유량이 0wt%일 때 40%이하, 5wt%일 때 80%이상, 10wt%일 때 90% 이상, 15wt% 이상일 때에는 100% 차광효과가 각각 얻어졌다. 또한, 폴리우레탄층(14)의 두께는 50~150㎛의 두께로 됨이 바람직하다.Also, the polyurethane layer 14 may contain black pigments and resins. Examples of such black pigments include carbon black, black pigment, black dye, iron oxide, copper oxide, tin oxide, and mixtures thereof May be used, and it is preferable that the resin is a polyurethane resin. One embodiment of such a polyurethane layer 14 composition consists of 80-85 wt% polyurethane and 15-20 wt% carbon black. In other embodiments, the carbon black was 40% or less when the content was 0 wt%, 80% or more when the content was 5 wt%, 90% or more when the content was 10 wt%, or 100% when the content was 15 wt% or more. The thickness of the polyurethane layer 14 is preferably 50 to 150 mu m.

방습성 및 방수성 시험Moisture resistance and waterproofness test

본 발명에 의한 양면점착테이프를 먼저 23℃/50%RH 하에서 창틀형으로 가공하여 아크릴판에 부착하고, 이를 60℃/90%RH 하에서 2kg 롤러로 1회 왕복 가압하여 ABS 수지판에 부착하여 시험편을 제조하였다. 그리고, 이 시험편을 23℃의 수중에 50cm 깊이로 7일간 침적시킨 후, 상기 양면점착테이프를 떼어냈을 때 창틀 내측의 침수 유무를 목시 평가하였다.The double-sided pressure-sensitive adhesive tape according to the present invention was first processed into a window frame under 23 ° C / 50% RH, attached to an acrylic plate, and reciprocated once with a 2 kg roller under 60 ° C / 90% RH, . Then, the test piece was immersed in water of 23 DEG C at a depth of 50 cm for 7 days, and when the double-sided adhesive tape was removed, whether or not the inside of the window frame was immersed was evaluated.

이러한 방습성 및 방수성 시험 결과, 창틀 내측의 침수뿐만 아니라 습기의 흔적이 관찰되지 않았다(IPX7 등급에 준함).As a result of this moisture proofing and waterproofing test, not only immersion in the inside of the window frame but also no signs of moisture (according to IPX7 rating) was observed.

이와 같이 본 발명에 의한 양면점착테이프는 디스플레이 패널에 사용되어 차광효과는 물론 뛰어난 방수성 및 방습성의 효과를 갖는다.As described above, the double-sided pressure-sensitive adhesive tape according to the present invention is used in a display panel, and has an excellent waterproofing and moisture-proofing effect as well as a shading effect.

이상 기술한 본 발명의 바람직한 실시예들은 예시의 목적을 위해 개시된 것이며, 해당 분야에서 통상의 지식을 가진 자라면 누구나 본 발명의 사상과 범위 안에서 다양한 수정, 변경, 부가 등이 가능할 것이고, 이러한 수정, 변경, 부가 등은 특허청구 범위에 속하는 것으로 보아야 한다.It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention. Accordingly, it is intended that the present invention cover the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents. Changes, additions, and the like should be regarded as falling within the scope of the claims.

100: 디스플레이 패널 120: 디스플레이 윈도우
130: 양면점착테이프 140: 디스플레이 어셈블리
10: 디스플레이 원도우용 양면점착테이프
12, 16: 점착층 14: 폴리우레탄층
18: 이형지100: display panel 120: display window
130: double-sided adhesive tape 140: display assembly
10: Double-sided adhesive tape for display window
12, 16: adhesive layer 14: polyurethane layer
18: release paper

Claims (8)

디스플레이 패널의 디스플레이 윈도우와 디스플레이 어셈블리 간에 삽입되어 상호 부착시키는 양면점착테이프에 있어서,
순차적으로 적층되고 각각 흑색안료를 함유하는 제1점착층과 폴리우레탄층 및 제2점착층을 포함하며, 상기 흑색안료는 산화철, 산화구리, 산화주석 및 이의 혼합물로 구성된 군에서 선택된 하나 이상으로 되는 것을 특징으로 하는 양면점착테이프.A double-sided pressure-sensitive adhesive tape which is inserted and adhered between a display window of a display panel and a display assembly,
A first adhesive layer sequentially laminated and each containing a black pigment, a polyurethane layer and a second adhesive layer, wherein the black pigment is at least one selected from the group consisting of iron oxide, copper oxide, tin oxide and mixtures thereof Sensitive adhesive tape. 삭제delete 제1항에 있어서,
상기 제1점착층 및 제2점착층의 조성은 아크릴계 수지를 포함하는 것을 특징으로 하는 양면점착테이프.The method according to claim 1,
Wherein the composition of the first adhesive layer and the second adhesive layer comprises an acrylic resin. 삭제delete 제1항에 있어서,
상기 제1점착층 및 제2점착층의 두께는 각각 25~50㎛인 것을 특징으로 하는 양면점착테이프.The method according to claim 1,
Wherein the first adhesive layer and the second adhesive layer each have a thickness of 25 to 50 탆. 삭제delete 제1항에 있어서,
상기 폴리우레탄층의 두께는 50~150㎛인 것을 특징으로 하는 양면점착테이프.The method according to claim 1,
Wherein the thickness of the polyurethane layer is 50 to 150 占 퐉. 제1항에 있어서,
상기 제2점착층 상에 부착된 이형지를 더 포함하는 것을 특징으로 하는 양면점착테이프.The method according to claim 1,
And a release paper adhered on the second adhesive layer.
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