KR20120094380A - Thermel conductive and emitting sheet - Google Patents

Thermel conductive and emitting sheet Download PDF

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KR20120094380A
KR20120094380A KR1020110013855A KR20110013855A KR20120094380A KR 20120094380 A KR20120094380 A KR 20120094380A KR 1020110013855 A KR1020110013855 A KR 1020110013855A KR 20110013855 A KR20110013855 A KR 20110013855A KR 20120094380 A KR20120094380 A KR 20120094380A
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heat dissipation
display
heat
layer
conductive layer
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KR1020110013855A
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Korean (ko)
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KR101223858B1 (en
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이무균
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이무균
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J17/00—Gas-filled discharge tubes with solid cathode
    • H01J17/02—Details
    • H01J17/28—Cooling arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • 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
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/20—Adhesives in the form of films or foils characterised by their carriers
    • C09J7/28—Metal sheet
    • 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
    • C09J7/29—Laminated material
    • 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]
    • 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
    • C09J2301/16—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the structure of the carrier layer
    • 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
    • C09J2301/314—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 layer and/or the carrier being conductive
    • 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
    • C09J2301/408—Additional features of adhesives in the form of films or foils characterized by the presence of essential components additives as essential feature of the adhesive layer

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)

Abstract

PURPOSE: A heat radiation sheet is provided to improve a cooling performance by discharging conductive heat in a vertical direction and a horizontal direction of a display and to reduce weight and thickness. CONSTITUTION: A heat dissipation adhesion layer(110) is attached to a display. The heat dissipation adhesion layer comprises a bon nano-tube. A conductive layer(120) conducts heat generated in the display of the exterior of the heat dissipation adhesion layer. The conductive layer is aluminum of a thin plate. A heat dissipation layer(130) is placed on the exterior of the conductive layer. The heat dissipation layer rapidly discharges conductive heat in a vertical direction and a horizontal direction of the display.

Description

방열시트{THERMEL CONDUCTIVE AND EMITTING SHEET}Heat dissipation sheet {THERMEL CONDUCTIVE AND EMITTING SHEET}

본 발명은 방열시트에 관한 것으로서 더욱 상세하게는 디스플레이를 구성하는 글래스와 방열판(Heat Spreader) 사이에 장착하여 디스플레이에서 발생 되는 열을 효율적으로 수직방향과 수평방향으로 신속하게 방열시켜 냉각성 향상으로 제품의 품질과 내구성을 높일 수 있도록 개선한 방열시트의 제공에 관한 것이다.The present invention relates to a heat dissipation sheet, and more particularly, mounted between a glass constituting a display and a heat spreader, and rapidly dissipating heat generated from the display in a vertical direction and a horizontal direction efficiently to improve cooling property. The present invention relates to an improved heat dissipation sheet for improving quality and durability.

일반적으로, 텔레비젼에 사용되는 PDP(Plasma Display Panel) 또는 텔레비젼과 휴대용 단말기에 적용되는 유기발광다이오드(OLED, Organic Light-Emitting Diode)는 LCD에 비하여 무게를 1/3수준으로 줄일 수 있고, 특히 유기발광다이오드의 경우에는 고온과 저온에서 색 재현성이 동일하고, 빠른 응답속도를 가지고 있으며 동영상 콘텐츠의 활성화로 인해 LCD보다 응답속도가 1,000배가량 빠른 특성에 의하여 근자에 들어 상용화에 이르고 있는 실정이다.In general, the PDP (Plasma Display Panel) used for televisions or the organic light-emitting diode (OLED) applied to televisions and portable terminals can reduce the weight to 1/3 compared to LCD, especially organic In the case of light emitting diodes, color reproducibility is the same at high and low temperatures, has a fast response speed, and due to the activation of video content, the response speed is about 1,000 times faster than LCD, and thus it is commercialized.

상기와 같은 플라즈마 글래스와 유기발광다이오드를 포함하는 디스플레이의 동작 온도는 보편적으로 90℃ 이하이며, 방전영역과 비방전영역 온도차가 10℃ 이상이 되면 플라즈마 글래스에 균열이 발생하게 된다.The operating temperature of the display including the plasma glass and the organic light emitting diode is generally 90 ° C. or less, and when the temperature difference between the discharge region and the non-discharge region is 10 ° C. or more, cracking occurs in the plasma glass.

상기와 같은 디스플레이에서 발생하는 고열을 동력을 이용하지 않고 신속하게 수평방향과 수직방향을 통하여 외부로 방열시키기 위한 냉각수단으로 방열시트가 사용되고 있으며, 종래 기술이 적용되는 일반적인 방열시트를 도 5를 통하여 살펴보면 다음과 같다.A heat dissipation sheet is used as a cooling means for quickly dissipating high heat generated in the display as described above without using power and horizontally and vertically, and the heat dissipation sheet to which the prior art is applied is shown in FIG. Looking at it as follows.

종래 기술이 적용되는 방열시트(1)는, 실리콘에 방열재로 열전도성이 우수한 흑연(Graphite)을 포함하는 시트체(2)로 구성하고, 대상 디스플레이와 동일한 크기로 재단한 후 시트체(2)의 어느 한 면 가장자리에는 고정수단으로 양면테이프(3)를 부착하여 구성하고 있다.The heat dissipation sheet 1 to which the prior art is applied is composed of a sheet body 2 containing graphite having excellent thermal conductivity with silicon as a heat dissipating material, and after cutting to the same size as the target display, the sheet body 2 The double sided tape 3 is attached to one side edge of the side by a fixing means.

상기와 같은 종래 기술의 방열시트는, 실리콘과 흑연(Graphite)을 강력한 힘으로 압연 되어 시트(Sheet) 상태로 형성하기 때문에 아무리 얇은 두께로 만든다 하여도 최소두께가 1㎜ 이상이기 때문에 박형이면서 경량화를 추구하는 디스플레이의 목적에 부합되지 못하고 있는 실정이다.Since the heat dissipation sheet of the prior art as described above is formed in a sheet state by rolling silicon and graphite with a strong force, even if the thickness is made to be thin, the thickness is thin and light because the minimum thickness is 1 mm or more. The situation does not meet the purpose of the display to pursue.

특히 휴대폰이나 피디에이(PDA) 등과 같은 휴대용단말기에 적용하고자 할 경우에는 1㎜의 두께는 제품의 전체 두께에서 상당한 비중을 차지하기 때문에 날로 초소형이면서 박형으로 진화하는 데 큰 지장을 초래하게 됨은 물론, 흑연으로 이루어진 방열시트가 전량 수입에 의존하고 있는 실정이기 때문에 고가여서 제품의 가격에 상당한 영향을 미처 대외적인 가격경쟁력이 취약하게 되는 원인이 되고 있는 실정이다.In particular, when it is applied to a portable terminal such as a mobile phone or PDA, the thickness of 1mm occupies a considerable proportion of the overall thickness of the product, and thus it causes a great obstacle in evolving into a very small and thin film, as well as graphite. Since the heat dissipation sheet consisting of all depend on imports, it is expensive and has a considerable influence on the price of the product, which is a cause of external price competitiveness being weak.

또한, 방열시트를 대상체인 디스플레이와 결합(부착)하고자 할 경우에는 방열시트의 가장자리에 부착된 양면테이프를 이용하게 되므로, 양면테이프가 부착된 부분은 디스플레이의 열을 전도 받아 방열하는 것이 차단되므로 전체적으로 고른 방열이 어렵게 된다.In addition, when combining (attaching) the heat dissipation sheet with the object display, the double-sided tape attached to the edge of the heat dissipation sheet is used. Even heat dissipation becomes difficult.

그리고, 방열시트에 부착된 양면테이프는 시간이 경과 하면서 디스플레이에서 발생하는 열에 의하여 경화되거나 접착력이 저하되면서 박리 되는 현상이 발생하여 방열시트와 디스플레이가 견고한 상태의 접착을 유지하지 못하게 되므로 결국에는 방열기능을 상실하게 되는 원인이 된다.In addition, the double-sided tape attached to the heat dissipation sheet hardens due to heat generated from the display over time, or peels off due to a decrease in adhesive strength, and thus the heat dissipation sheet and the display do not maintain a firm adhesive state. It is the cause of loss.

뿐만 아니라, 디스플레이와 방열시트 사이에 양면테이프에 의하여 얇은 공기층이 형성되어 디스플레이에서 발생하는 열이 방열시트로 전달되는 것을 차단하게 되므로 결국에는 디스플레이의 열을 방열시트를 통하여 수직방향과 수평방향을 통하여 외부로 배출하는 기능을 수행하지 못하게 되는 결과를 가져오게 되므로 방열시트 본래의 목적을 달성할 수 없게 되므로 텔레비젼 또는 휴대용단말기의 품질과 내구성에 좋지 않은 영향을 미치게 되는 등 여러 문제점이 발생하고 있는 실정이다.In addition, since a thin air layer is formed between the display and the heat dissipation sheet by a double-sided tape, the heat generated from the display is prevented from being transferred to the heat dissipation sheet. As the result of not being able to perform the function of discharging to the outside, the original purpose of the heat dissipation sheet can not be achieved, and thus there are many problems such as adversely affecting the quality and durability of the TV or portable terminal. .

이에 본 발명에서는 상기와 같은 문제점들을 해결하기 위하여 발명한 것으로서 방열 대상체인 디스플레이와 부착할 수 있도록 구비하는 방열점착층과, 상기 방열점착층의 외측에 디스플레이에서 발생하는 열을 신속하게 전도 받을 수 있도록 구비하는 전도층과, 상기 전도층의 외측에 구비하여 전도층이 전도 받은 열을 신속하게 외부로 디스플레이의 수직방향과 수평방향으로 배출하는 방열층으로 구성하여,Accordingly, the present invention has been invented to solve the above problems, and the heat-resistant adhesive layer provided to be attached to the display, which is a heat-dissipating object, and to quickly conduct heat generated from the display to the outside of the heat-resistant adhesive layer. Comprising a conductive layer to be provided, and a heat dissipation layer provided on the outside of the conductive layer to quickly discharge the heat conducted by the conductive layer to the outside in the vertical and horizontal directions of the display,

카본나노튜브와 박판 알루미늄을 이용하여 방열점착층이 디스플레이 전체와 부착되더라도 디스플레이의 열이 전도되는 것을 차단하지 않고 전도층으로 전달하는 브리지 역할을 수행하고, 전도 받은 열을 다시 외부로 빠르게 방출하여 냉각성을 높이면서 얇은 두께와 경량화를 구현할 수 있는 목적 달성이 가능하다.Although carbon nanotubes and thin aluminum are attached to the entire display, even if the heat-adhesive adhesive layer is attached to the entire display, it acts as a bridge to transfer the conductive heat to the conductive layer without blocking the conduction of the display. It is possible to achieve the purpose of realizing a thin thickness and light weight while increasing.

본 발명은 방열시트를 개선하여 디스플레이에서 발생하는 열을 알루미늄을 통하여 전도 받아 카본나노튜브(CNT, Carbon Nanotube)를 통하여 외부로 수직방향과 수평방향으로 신속하게 배출하여 방열할 수 있도록 하는 것은 물론, 디스플레이와 부착되는 점착제에도 카본나노튜브(CNT, Carbon Nanotube)를 포함시켜 도전성과 내열성을 가지도록 함으로서 점착제에 의하여 디스플레이의 열이 차단되는 것을 방지함과 아울러 열에 의하여 방열시트가 박리 되는 것을 방지할 수 있게 함으로서 방열시트 본래의 목적을 충실하게 달성하여 텔레비젼 또는 휴대용단말기의 냉각성능을 극대화하면서 경량화와 슬림화에 기여할 수 있는 등 다양한 효과를 가지는 발명이다.The present invention is to improve the heat dissipation sheet to conduct the heat generated from the display through aluminum to quickly discharge heat in the vertical and horizontal directions through the carbon nanotubes (CNT, Carbon Nanotube), as well as to radiate heat, Carbon nanotube (CNT) is also included in the adhesive attached to the display to have conductivity and heat resistance, thereby preventing the display from being blocked by the adhesive and preventing the heat dissipation sheet from being peeled off by heat. By reliably achieving the original purpose of the heat dissipation sheet to maximize the cooling performance of the TV or portable terminal, it is an invention having various effects, such as contribute to light weight and slim.

도 1은 본 발명의 기술이 적용된 방열시트를 도시한 일부생략 상태의 파절 사시도.
도 2는 본 발명의 기술이 적용된 방열시트를 발췌하여 도시한 단면 구성도.
도 3은 본 발명의 기술이 적용된 방열시트의 다른 예를 도시한 일부생략 상태의 파절 사시도.
도 4는 본 발명의 기술이 적용된 다른 예의 방열시트를 발췌하여 도시한 단면 구성도.
도 5는 종래 기술이 적용된 방열시트를 도시한 구성도.1 is a broken perspective view of a partially omitted state showing a heat radiation sheet to which the technique of the present invention is applied.
Figure 2 is a cross-sectional view showing an extract of the heat radiation sheet to which the technique of the present invention is applied.
Figure 3 is a broken perspective view of a partially omitted state showing another example of a heat radiation sheet to which the technique of the present invention is applied.
Figure 4 is a cross-sectional view showing an extract of the heat radiation sheet of another example to which the technique of the present invention is applied.
Figure 5 is a block diagram showing a heat radiation sheet to which the prior art is applied.

이하 첨부되는 도면과 관련하여 상기 목적을 달성하기 위한 본 발명의 바람직한 구성과 작용에 대하여 설명하면 다음과 같다.DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 1은 본 발명의 기술이 적용된 방열시트를 도시한 일부생략 상태의 파절 사시도, 도 2는 본 발명의 기술이 적용된 방열시트를 발췌하여 도시한 단면 구성도, 도 3은 본 발명의 기술이 적용된 방열시트의 다른 예를 도시한 일부생략 상태의 파절 사시도, 도 4는 본 발명의 기술이 적용된 다른 예의 방열시트를 발췌하여 도시한 단면 구성도로서 함께 설명한다.1 is a fragmentary perspective view of a partially omitted state showing a heat radiation sheet to which the technique of the present invention is applied, FIG. 2 is a cross-sectional view showing an extract of a heat radiation sheet to which the technique of the present invention is applied, and FIG. Fig. 4 is a perspective view showing a broken portion of a partially omitted state showing another example of the heat dissipation sheet, and Fig. 4 will be described together with a cross-sectional configuration diagram showing another heat dissipation sheet to which the technique of the present invention is applied.

본 발명의 기술이 적용되는 방열시트(100)는, 방열 대상체인 텔레비젼 또는 휴대용단말기의 디스플레이와 부착할 수 있도록 방열점착층(110)을 구비하고, 상기 방열점착층(110)에는 실질적으로 디스플레이와 부착하기 전까지 점착상태를 유지할 수 있도록 박리지(111)로 마감됨은 당연할 것이다.The heat dissipation sheet 100 to which the technique of the present invention is applied includes a heat dissipation adhesive layer 110 so as to be attached to a display of a television or a portable terminal which is a heat dissipation object, and the heat dissipation adhesive layer 110 includes a display substantially. Of course, it will be finished with the release paper 111 to maintain the adhesive state until attached.

상기 방열점착층(110)의 외측(디스플레이와 부착되는 반대 위치)에는 디스플레이에서 발생하는 열을 신속하게 전도받기 위한 전도층(120)을 구비하고, 상기 전도층(120)의 외측에는 전도층(120)이 전도 받은 열을 신속하게 외부로 디스플레이의 수직방향과 수평방향으로 배출하기 위한 방열층(130)을 형성하여 구성한다.The outer side of the heat dissipation adhesive layer 110 (opposite to the display) is provided with a conductive layer 120 for rapidly conducting heat generated from the display, and the conductive layer 120 outside the conductive layer 120. 120 is configured to form a heat dissipation layer 130 for quickly discharging the conducted heat to the outside in the vertical and horizontal directions of the display.

상기 방열점착층(110)은, 산업계에서 통상적으로 사용되는 아크릴계 점착제 등을 사용하고, 상기 점착제에는 디스플레이에서 발생하는 열이 전도층(120)으로 전달될 수 있도록 카본나노튜브(CNT, Carbon Nanotube)를 포함하여 도전성을 가지면서 내열성을 가지도록 한다.The heat dissipation adhesive layer 110, using an acrylic pressure-sensitive adhesive commonly used in the industry, the carbon nanotube (CNT, Carbon Nanotube) so that the heat generated from the display can be transferred to the conductive layer 120 Including a conductive to have heat resistance.

상기 카본나노튜브(CNT, Carbon Nanotube)의 함량은 점착제 전체에 대하여 3 ∼ 10％의 비율을 가지도록 하는 데, 카본나노튜브가 3％ 이하일 경우에는 디스플레이의 열을 전도층(120)으로 전달하지 못하게 되고, 카본나노튜브가 10％ 이상일 경우에는 점착력이 저하되어 디스플레이와 견고한 부착력을 유지할 수 없게 된다.The content of the carbon nanotubes (CNT, Carbon Nanotube) is to have a ratio of 3 to 10% with respect to the entire pressure-sensitive adhesive, when the carbon nanotubes are 3% or less do not transfer the heat of the display to the conductive layer 120. If the carbon nanotubes are 10% or more, the adhesive force is lowered, and thus the adhesive strength with the display cannot be maintained.

상기 전도층(120)은, 방사율은 낮으나 우수한 열전도성을 가지는 박판의 알루미늄을 사용하여 신속하게 디스플레이의 열을 전도 받을 수 있도록 한다.The conductive layer 120, by using a thin plate of aluminum having a low emissivity but excellent thermal conductivity can be quickly conducted to the heat of the display.

상기 방열층(130)은, 카본나노튜브를 용제(에탄올계)를 이용하여 전도층(120)의 표면에 고른 두께를 가지도록 코팅을 수행하여 전도층(120)이 전도 받은 열을 외부로 신속하게 배출할 수 있도록 한다.The heat dissipation layer 130 is coated with carbon nanotubes to have a uniform thickness on the surface of the conductive layer 120 using a solvent (ethanol-based) to quickly transfer the heat conducted by the conductive layer 120 to the outside. To be discharged.

상기 방열점착층(110)과 방열층(130)의 두께는 약 20㎛을 유지하고, 전도층(120)의 두께는 약 30 ∼ 70㎛의 두께를 유지하도록 하는 데, 디스플레이의 용도에 따라 휴대용단말기의 경우에는 얇은 두께를 가지도록 하고 텔레비젼과 같은 대형 디스플레이의 경우에는 두꺼운 두께를 가지도록 하여 디스플레이의 크기에 맞게 열전도성을 확보할 수 있도록 하는 것이 바람직하다.The heat dissipation adhesive layer 110 and the heat dissipation layer 130 to maintain the thickness of about 20㎛, the thickness of the conductive layer 120 to maintain the thickness of about 30 ~ 70㎛, portable according to the use of the display In the case of a terminal, it is desirable to have a thin thickness and in the case of a large display such as a television, to have a thick thickness so as to ensure thermal conductivity according to the size of the display.

본 발명의 다른 예로서는, 방열점착층(110)과 전도층(120)을 가지는 방열층(130)의 다른 면에 방열점착층(140)을 더 가지고 양면 사용이 가능하게 방열시트(100)를 구성하여도 무방할 것이다.As another example of the present invention, the heat dissipation sheet 100 is configured to have a heat dissipation adhesive layer 110 and a conductive layer 120 further having a heat dissipation adhesive layer 140 on the other side of the heat dissipation layer 130. You will be fine.

상기와 같은 본 발명의 기술이 적용된 방열시트(100)의 방열작용에 대하여 살펴보면 다음과 같다.Looking at the heat dissipation action of the heat dissipation sheet 100 to which the technique of the present invention is applied as described above is as follows.

방열 대상체인 디스플레이에 방열시트(100)를 부착함으로써 디스플레이에서 발생하는 열을 신속하게 외부로 디스플레이의 수직방향 또는 수평방향으로 배출하게 된다.By attaching the heat dissipation sheet 100 to the display, which is a heat dissipation object, heat generated in the display is quickly discharged to the outside in the vertical direction or the horizontal direction of the display.

먼저, 방열점착층(110)의 박리지(111)를 분리한 후 방열점착층(110)을 대상체인 디스플레이와 긴밀한 상태로 부착시키면 되는 데, 이러한 상태에서 디스플레이에서 발생하는 열을 방열점착층(110)을 통하여 전도층(120)으로 신속하게 전달되고, 전도층(120)이 전도 받은 열은 전도층(120)의 외면에 구비되는 방열층(130)을 통하여 수직 및 수평방향으로 통하여 외부로 배출되는 것이다.First, the release paper 111 of the heat dissipation adhesive layer 110 is removed, and then the heat dissipation adhesive layer 110 is attached to the display in close contact with the object. In this state, the heat generated from the display is applied to the heat dissipation adhesive layer ( The heat is quickly transmitted to the conductive layer 120 through the 110, and the heat transmitted by the conductive layer 120 is transferred to the outside through the heat dissipation layer 130 provided on the outer surface of the conductive layer 120 in the vertical and horizontal directions. It is discharged.

이를 구체적으로 살펴보면, 디스플레이와 방열점착층(110) 전체가 긴밀한 상태의 밀착이 되어 있는 상태라 하더라도 방열점착층(110)의 점착력에 지장을 주지않을 정도의 함량으로 포함되는 카본나노튜브에 의하여 디스플레이의 열이 전도층(120)으로 전달될 수 있게 된다.Looking at this in detail, even if the display and the heat dissipation adhesive layer 110 is in close contact with the entire state of the display by the carbon nanotube contained in a content that does not interfere with the adhesion of the heat dissipation adhesive layer 110 Heat may be transferred to the conductive layer 120.

이와 같이 전도층(120)으로 전달된 열은 전도층(120)을 구성하는 박판의 알루미늄이 저방사율을 가지기 때문에 자체적인 방열이 불가능하게 되나, 전도층(120)의 외부에 카본나노튜브로 코팅처리된 방열층(130)을 통하여 신속하게 방열될 수 있는 것이다.As such, the heat transferred to the conductive layer 120 is not possible to radiate itself because the aluminum of the thin plate constituting the conductive layer 120 has a low emissivity, but is coated with carbon nanotubes on the outside of the conductive layer 120. It can be quickly radiated through the treated heat radiation layer 130.

이와 같이 방열점착층(110)에 포함되어 있고 방열층(130)을 구성하는 카본나노튜브는, 미세한 크기를 가지면서 방열점착층(110)과 방열층(130)에 고르게 분산된 상태에서 각각의 카본나노튜브가 서로 연결된 고리형태를 이루게 됨으로써 디스플레이의 열을 전도층(120)인 박판 알루미늄으로 전달하고, 전도층(120)이 전도 받은 열을 외브로 방출할 수 있게 되는 것이다.As described above, the carbon nanotubes included in the heat dissipation adhesive layer 110 and constituting the heat dissipation layer 130 have a fine size and are evenly distributed in the heat dissipation adhesive layer 110 and the heat dissipation layer 130. As the carbon nanotubes form a ring shape connected to each other, the heat of the display is transferred to the thin aluminum, which is the conductive layer 120, and the conductive layer 120 is able to discharge the conducted heat to the outside.

상기와 같은 본 발명은, 카본나노튜브와 박판 알루미늄을 이용하여 방열점착층이 디스플레이 전체와 부착되더라도 디스플레이의 열이 전도되는 것을 차단하지 않고 전도층으로 전달하는 브리지 역할을 수행하고, 전도 받은 열을 다시 외부로 빠르게 방출하여 냉각성을 높이는 것은 물론, 두께를 얇게 하면서 경량화가 가능하여 디스플레이의 기술발전과 개발에 기여도가 큰 발명이다.The present invention as described above, even if the heat-resistant adhesive layer is attached to the entire display using carbon nanotubes and thin aluminum, serves as a bridge to transfer the conductive layer without blocking the conduction of the heat of the display, and the conducted heat It is an invention that contributes to the development and development of the display technology by rapidly discharging to the outside to increase the cooling performance and to reduce the thickness and weight.

100; 방열시트
110,140; 방열점착층
120; 전도층
130; 방열층100; Heat dissipation sheet
110,140; Heat dissipation adhesive layer
120; Conductive layer
130; Heat dissipation layer

Claims (5)

방열 대상체인 디스플레이와 부착할 수 있도록 구비하는 방열점착층(110)과;
상기 방열점착층(110)의 외측에 디스플레이에서 발생하는 열을 신속하게 전도 받을 수 있도록 구비하는 전도층(120)과;
상기 전도층(120)의 외측에 구비하여 전도층(120)이 전도 받은 열을 신속하게 외부로 디스플레이의 수직방향과 수평방향으로 배출하는 방열층(130)으로 구성하는 것을 특징으로 하는 방열시트.A heat dissipation adhesive layer 110 provided to be attached to the display which is a heat dissipation object;
A conductive layer 120 provided outside the heat dissipation adhesive layer 110 so as to rapidly conduct heat generated from the display;
The heat dissipation sheet provided on the outer side of the conductive layer 120 and configured to dissipate the heat transmitted by the conductive layer 120 quickly to the outside in the vertical and horizontal directions of the display. 제 1 항에 있어서;
상기 방열점착층(110)은, 통상적인 점착제에 디스플레이에서 발생하는 열이 전도층(120)으로 전달될 수 있도록 카본나노튜브(CNT, Carbon Nanotube)를 포함하고;
상기 카본나노튜브(CNT, Carbon Nanotube)의 함량은 점착력이 저하되지 않으면서 열전도성을 가질 수 있도록 점착제 전체에 대하여 3 ∼ 10％의 비율을 함유시키는 것을 특징으로 하는 방열시트.The method of claim 1, further comprising:
The heat dissipation adhesive layer 110 includes a carbon nanotube (CNT) so that heat generated in a display may be transferred to the conductive layer 120 in a conventional adhesive;
The content of the carbon nanotubes (CNT, Carbon Nanotube) is a heat dissipation sheet, characterized in that it contains a ratio of 3 to 10% of the entire pressure-sensitive adhesive to have a thermal conductivity without lowering the adhesive force. 제 1 항에 있어서;
상기 전도층(120)은, 열전도성이 우수한 박판의 알루미늄인 것을 특징으로 하는 방열시트.The method of claim 1, further comprising:
The conductive layer 120 is a heat dissipation sheet, characterized in that the thin aluminum plate of excellent thermal conductivity. 제 1 항에 있어서;
상기 방열층(130)은, 카본나노튜브를 용제를 이용하여 전도층(120)의 표면에 코팅을 수행하여 구성하는 것을 특징으로 하는 방열시트.The method of claim 1, further comprising:
The heat dissipation layer 130, the heat dissipation sheet, characterized in that the carbon nanotubes are formed by coating the surface of the conductive layer 120 using a solvent. 제 1 항에 있어서;
상기 방열점착층(110)과 전도층(120)을 가지는 방열층(130)의 다른 면에 양면 사용이 가능하도록 방열점착층(140)을 더 가지도록 구성하는 것을 특징으로 하는 방열시트.The method of claim 1, further comprising:
The heat dissipation sheet, characterized in that the heat dissipation layer 110 and the conductive layer 120 has a heat dissipation layer 140 to further enable the use of both sides on the other side of the heat dissipation layer (130).
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KR20160090144A (en) 2015-01-21 2016-07-29 주식회사 아모그린텍 Heat dissipation sheet unified antenna module
KR20200055189A (en) * 2018-11-12 2020-05-21 주식회사 대현에스티 The manufacturing method for heat radiation adhesive and heat radiation tape with excellent in-plane thermal conductivity comprising the same
CN110003812A (en) * 2019-03-28 2019-07-12 昆山汉品电子有限公司 A kind of production method for the ultra-thin heat dissipation material inside electronic product
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