KR20010065164A - Heat-radiation Structure of Backlight Device - Google Patents

Heat-radiation Structure of Backlight Device Download PDF

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Publication number
KR20010065164A
KR20010065164A KR1019990065033A KR19990065033A KR20010065164A KR 20010065164 A KR20010065164 A KR 20010065164A KR 1019990065033 A KR1019990065033 A KR 1019990065033A KR 19990065033 A KR19990065033 A KR 19990065033A KR 20010065164 A KR20010065164 A KR 20010065164A
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South Korea
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liquid crystal
frame
light distribution
crystal panel
heat dissipation
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KR1019990065033A
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Korean (ko)
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KR100661827B1 (en
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문교훈
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구본준, 론 위라하디락사
엘지.필립스 엘시디 주식회사
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Priority to KR1019990065033A priority Critical patent/KR100661827B1/en
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    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1335Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336Illuminating devices
    • G02F1/133615Edge-illuminating devices, i.e. illuminating from the side
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/133308Support structures for LCD panels, e.g. frames or bezels
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1335Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336Illuminating devices
    • G02F1/133628Illuminating devices with cooling means

Abstract

PURPOSE: A liquid crystal display module having a radiation structure is provided to emit a heat from a lamp effectively, and to prevent the generation of foreign substances when inserting a lamp housing into the liquid crystal display module. CONSTITUTION: A liquid crystal panel(1) has a liquid crystal layer between two upper substrate and lower substrate. A light-emitting apparatus(2) has a lamp(21) providing a light to the liquid crystal panel by being located on a lower part of the liquid crystal panel. The first frame(3) is contacted with the lower part and a side of the light-emitting apparatus and has a flange and supports the light-emitting apparatus and the liquid crystal panel. A radiation plate(7) radiating the heat of the light-emitting apparatus by contacting to an upper horizontal part of a lamp housing(22) of the light-emitting apparatus. And, the second frame supports the liquid crystal panel and is connected with the flange of the first frame and the radiation plate.

Description

배광장치의 램프의 방열구조{Heat-radiation Structure of Backlight Device}Heat-radiation Structure of Backlight Device

본 발명은 데스크탑 컴퓨터 및 텔레비젼 등의 모니터용 액정표시장치의 배광장치의 램프의 방열구조에 관한 것이다.The present invention relates to a heat dissipation structure of a lamp of a light distribution device of a liquid crystal display device for a monitor such as a desktop computer and a television.

현재, 액정표시장치는 휴대폰, 계산기 등의 소형 표시장치나 노트북 컴퓨터, 텔레비젼 모니터 등의 대용량 표시장치 등에 널리 사용되고 있다. 본 발명의 실시예에서는 대용량 액정표시장치를 중심으로 설명하도록 한다.Currently, liquid crystal displays are widely used in small display devices such as mobile phones and calculators, and large display devices such as notebook computers and television monitors. In the embodiment of the present invention, a description will be given of a large-capacity liquid crystal display device.

일반적으로, 대용량 액정표시장치의 모듈은, 도 1 및 2에 도시한 바와 같이, 상·하 두 개의 기판과 두 기판사이에 개재된 액정층을 가진 액정패널(1)과, 상기 액정패널(1) 하부에 위치하고 램프(21)를 가진 배광장치(2)와, 상기 배광장치(2)의 열을 방열시키고, 상기 배광장치(2) 및 액정패널(1)을 지지하는 금속재질의 방열플레이트(3)와, 상기 방열플레이트(3)의 저면 및 상기 배광장치(2)의 측면과 접하여 상기 배광장치(2)와 상기 액정패널(1)을 지지하는 플라스틱재질의 제 1프레임(6)과, 상기 액정패널(1)의 가장자리를 테를 두르며 제 1프레임(6)과 함께 상기 액정패널을 지지하는 제 2 프레임(4)으로 대략 구성되어 있다. 또한, 애정표시장치모듈은 배광장치(2)의 램프하우징(22)의 상부면과 접촉하여 위치한 플라스틱 재질의 몰드(5)를 가지고 있어 액정패널(1)을 가이드하고 있다.In general, a module of a large-capacity liquid crystal display device includes a liquid crystal panel 1 having a liquid crystal layer interposed between two substrates and two substrates, as shown in FIGS. 1 and 2, and the liquid crystal panel 1. A heat dissipation plate 2 having a lamp 21 positioned below the heat dissipation plate and a heat dissipation plate of a metal material for dissipating heat from the light dissipation unit 2 and supporting the light distribution unit 2 and the liquid crystal panel 1. 3) and a first frame 6 made of a plastic material which contacts the bottom surface of the heat dissipation plate 3 and the side surface of the light distribution device 2 to support the light distribution device 2 and the liquid crystal panel 1; The edge of the liquid crystal panel 1 is roughly composed of a second frame 4 which supports the liquid crystal panel together with the first frame 6. In addition, the love display module has a plastic mold 5 positioned in contact with the upper surface of the lamp housing 22 of the light distribution device 2 to guide the liquid crystal panel 1.

또한, TCP(Tape Carrier Package; 11)를 통하여 액정패널(1)과 신호를 연결하는 PCB(Printed Circuit Board; 12)는 배광장치(2)의 램프(21)의 하부에 배설되어 있고, 구동회로는 그 측면에 위치하고 있다. 이는, 예를 들면 18인치 화면을 가진 액정표시장치의 경우, PCB(12)가 배광장치의 상부에 위치하면, 화면의 외곽부분을 포함한 액정표시장치 전체의 크기가 매우 커지기 때문이다.In addition, a printed circuit board (PCB) 12 for connecting signals to the liquid crystal panel 1 through a tape carrier package (TCP) 11 is disposed under the lamp 21 of the light distribution device 2, and a driving circuit is provided. Is located on its side. This is because, for example, in the case of an LCD having an 18-inch screen, when the PCB 12 is positioned above the light distribution device, the size of the entire LCD including the outer portion of the screen becomes very large.

또한, 상·하 기판의 이면에는 상·하 편광판(13)(14)이 위치하고, 상기 하부편광판(14)과 배광장치(2)의 보호시트 사이에는 빈 공간이 있는 데, 이는 진동 및 충격 실험시 하부편광판(14)과 보호시트가 충돌하면서 서로 흠집을 내는 것을 방지하기 위한 것이다.In addition, the upper and lower polarizers 13 and 14 are located on the rear surface of the upper and lower substrates, and there is an empty space between the lower polarizing plate 14 and the protective sheet of the light distribution apparatus 2, which is a vibration and shock experiment. When the lower polarizing plate 14 and the protective sheet collide with each other to prevent scratching each other.

또한, 배광장치(2)는 아래로부터 반사판, 도광판, 확산 또는 보호시트, 제 1 및 제 2 프리즘시트, 확산 또는 보호시트가 차례로 적층되어 이루어져 있고, 배광장치(2)의 램프(21)는 액정표시장치모듈의 길이방향으로 연장되어, 도 1에 도시한 바와 같이, 액정표시장치모듈의 상·하부 양단에 대칭적으로 위치하고 있다. 배광장치(2)의 램프는 일반적으로 액정표시장치모듈의 상·하 양단에 각각 두 개씩 배설되어 있고, 램프(21)의 둘레에는 램프(21)에서 방출된 빛을 도광판으로 가이드하는 램프하우징(22)이 램프의 삼면을 감싸고 있다. 또한, 고휘도를 달성하기 위한 배광장치(2)의 램프(21)의 수의 증가에 따라 발생하는 열을 방출하는 방열구조로서 방열플레이트(3)가 램프하우징(22)의 측면 및/또는 바닥면과 접촉하고 있다.Further, the light distribution device 2 is formed by stacking a reflecting plate, a light guide plate, a diffusion or protection sheet, a first and a second prism sheet, and a diffusion or protection sheet in order from the bottom, and the lamp 21 of the light distribution device 2 is a liquid crystal. As shown in FIG. 1, the display device module extends in the longitudinal direction and is symmetrically positioned at both upper and lower ends of the liquid crystal display device module. In general, two lamps of the light distribution device 2 are disposed at upper and lower ends of the liquid crystal display module, and a lamp housing for guiding light emitted from the lamp 21 to the light guide plate is disposed around the lamp 21. 22) It surrounds three sides of this lamp. In addition, as a heat dissipation structure for dissipating heat generated by an increase in the number of lamps 21 of the light distribution device 2 for achieving high brightness, the heat dissipation plate 3 has a side and / or bottom surface of the lamp housing 22. Is in contact with

그러나, 상기 구조의 액정표시장치 모듈의 배광장치의 방열구조는 다음과 같은 문제점이 있다.However, the heat dissipation structure of the light distribution device of the liquid crystal display module having the above structure has the following problems.

첫째, 방열플레이트를 램프하우징의 측면 및/또는 바닥면에만 배치하여 램프에서 발생하는 열의 방출효율이 떨어져 액정표시장치모듈의 휘도특성 등을 저해하고 있다.First, the heat dissipation plate is disposed only on the side and / or bottom surface of the lamp housing to reduce heat emission efficiency of the lamp, thereby impairing the luminance characteristics of the liquid crystal display module.

둘째, 상기와 같은 대용량 액정표시장치모듈에 있어서, 램프를 교체하기 위하여 램프하우징을 액정표시장치모듈에 슬라이드 삽입시킬 때 상기 몰드물과 접촉하므로 이물질이 발생하고 있다.Second, in the large-capacity liquid crystal display module as described above, foreign substances are generated since the lamp housing contacts the mold when the lamp housing is inserted into the liquid crystal display module to replace the lamp.

셋째, 대용량 액정표시장치모듈의 경우에 있어서, 자중의 힘에 의하여 휨이 발생할 수가 있다.Third, in the case of a large-capacity liquid crystal display module, warpage may occur due to the force of its own weight.

따라서, 본 발명은 상기 문제점 및 다른 문제점을 해결하기 위하여 고안된 것으로, 본 발명의 목적은 램프로부터의 열을 효과적으로 방출할 수 있는 방열구조를 가진 액정표시장치모듈을 제공하는 것이다.Accordingly, the present invention has been devised to solve the above and other problems, and an object of the present invention is to provide a liquid crystal display module having a heat dissipation structure capable of effectively dissipating heat from a lamp.

본 발명의 다른 목적은 액정표시장치모듈에 램프하우징을 삽입할 경우에 이물질이 발생되지 않는 액정표시장치모듈을 제공하는 것이다.Another object of the present invention is to provide a liquid crystal display module in which no foreign matter is generated when the lamp housing is inserted into the liquid crystal display module.

도 1은 종래의 액정표시장치모듈을 나타내는 정면도이다.1 is a front view illustrating a conventional liquid crystal display module.

도 2는 도 1의 A-A'의 선을 따라 절단된 단면도이다.FIG. 2 is a cross-sectional view taken along line AA ′ of FIG. 1.

도 3은 본 발명의 실시예에 따른 액정표시장치모듈을 나타내는 정면도이다.3 is a front view illustrating a liquid crystal display module according to an exemplary embodiment of the present invention.

도 4는 도 3의 B-B'의 선을 따라 절단된 단면도이다.4 is a cross-sectional view taken along the line BB ′ of FIG. 3.

<도면의 주요부분에 대한 부호의 설명><Description of the symbols for the main parts of the drawings>

1 : 액정패널 2 : 배광장치1 liquid crystal panel 2 light distribution device

3 : 제 1 프레임 7 : 방열플레이트3: first frame 7: heat dissipation plate

4 : 제 2프레임 5 : 몰드4: second frame 5: mold

21 : 램프 22 : 램프하우징21: lamp 22: lamp housing

상기 목적을 달성하기 위하여, 본 발명의 바람직한 실시예에 따른 액정표시장치는 은 상·하 두 개의 기판과, 그 사이에 개재된 액정층을 가진 액정패널과; 상기 액정패널 하부에 위치하고, 램프와 램프하우징을 가진 배광장치와; 상기 배광장치의 배면에 위치하고, 외곽에 플랜지부를 가진 제 1 프레임과; 상기 액정패널의 상부에 위치하여 상기 제 1 프레임의 플랜지부와 결합하여 상기 액정패널 및 배광장치를 지지하는 제 2 프레임과; 상기 램프하우징의 상부에 위치하여 상기 배광장치의 열을 방열시키는 방열플레이트를 포함하고 있다.In order to achieve the above object, a liquid crystal display device according to a preferred embodiment of the present invention comprises a liquid crystal panel having two upper and lower substrates, and a liquid crystal layer interposed therebetween; A light distribution device disposed below the liquid crystal panel and having a lamp and a lamp housing; A first frame disposed on a rear surface of the light distribution apparatus and having a flange portion at an outer side thereof; A second frame positioned above the liquid crystal panel and coupled to the flange portion of the first frame to support the liquid crystal panel and the light distribution device; Located at the top of the lamp housing includes a heat dissipation plate for radiating heat of the light distribution apparatus.

또한, 상기 방열플레이트는 금속재질이고, 상기 방열프레임은 상기 제 1 프레임의 플랜지부까지 연장되어 있으며, 상기 방열프레임은 상기 끝단에 형성된 수직부를 더욱 포함하고 있으며, 상기 제 1 및 제 2 프레임의 가장자리는 수직부를 가지고 있으며, 상기 방열플레임의 수직부는 상기 제 1 및 제 2 프레임의 수직부 사이에 개재되어 있다.In addition, the heat dissipation plate is made of metal, the heat dissipation frame extends to the flange portion of the first frame, the heat dissipation frame further includes a vertical portion formed at the end, the edge of the first and second frame Has a vertical portion, and the vertical portion of the heat radiation frame is interposed between the vertical portions of the first and second frames.

따라서, 액정표시장치모듈의 고휘도를 달성하기 위해 배광장치의 램프의 수 및 소비전력의 증가에 따라 발생하는 열을 효과적으로 방열할 수 있다.Therefore, in order to achieve high brightness of the liquid crystal display module, it is possible to effectively dissipate heat generated by an increase in the number of lamps and power consumption of the light distribution device.

이하 본 발명의 일실시예를 첨부된 도면을 참조하여 상세히 설명하도록 한다. 또한, 종래의 액정표시장치모듈의 구성요소와 동일한 요소는 동일한 부호를 사용하도록 한다.Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings. In addition, the same elements as those of the conventional liquid crystal display module have the same reference numerals.

본 발명에 따른 대용량 액정표시장치의 모듈은, 도 3 및 4에 도시한 바와 같이, 상·하 두 기판과 두 기판사이의 액정층을 가진 액정패널(1)과, 액정패널 하부에 위치하고 상기 액정패널에 빛을 제공하는 램프(21)를 가진 배광장치(2)와, 상기 배광장치(2)의 하부 및 측면과 접촉하도록 배설되어있고, 외곽에 플랜지를 가지고 있으며, 상기 배광장치(2)와 상기 액정패널(1)을 지지하는 금속재질의 제 1 프레임(3)과, 상기 배광장치(2)의 램프하우징(22)의 상부수평부와 접촉하여 배광장치의 열을 방열시키는 금속재질의 방열플레이트(7)와, 상기 액정패널의 가장자리를 테두르고 상기 액정패널을 지지하고, 나사와 같은 결합부재를 통하여 제 1 프레임(3)의 플랜지 및 상기 방열플레이트와 연결된 금속재질의 제 2프레임(4)으로 대략 구성되어 있다. 또한, 액정표시장치모듈은 상기 제 2프레임(4)의 수평부의 하부에 배설된 몰드(6)를 가지고 있어 액정패널(1)을 가이드하는 역할을 하고 있다.3 and 4, the module of the large-capacity liquid crystal display device according to the present invention includes a liquid crystal panel 1 having a liquid crystal layer between two substrates, the upper and lower substrates, and a liquid crystal panel positioned below the liquid crystal panel. A light distribution device (2) having a lamp (21) for providing light to the panel, and arranged to contact the lower and side surfaces of the light distribution device (2), having a flange on the outside, and with the light distribution device (2) The heat dissipation of the metal material which radiates heat of the light distribution device by contacting the first frame 3 of the metal material supporting the liquid crystal panel 1 and the upper horizontal portion of the lamp housing 22 of the light distribution device 2. The plate 7 and the edge of the liquid crystal panel to support the liquid crystal panel, the second frame (4) of metal material connected to the flange of the first frame (3) and the heat dissipation plate through a coupling member such as a screw It is roughly composed of). In addition, the liquid crystal display module has a mold 6 disposed under the horizontal portion of the second frame 4 to guide the liquid crystal panel 1.

또한, TCP(Tape Carrier Package; 11)를 통하여 액정패널(1)과 연결된 PCB(12)는 제 2프레임(4)의 수평부와 상기 몰드(6)과의 사이에 개재되어 있다. 이는 화면의 외곽부분이 상대적으로 커져 PCB가 배설되기에 적합한 공간을 가지고 있기 때문이며, 그러나, 본 실시예에서도 PCB가 배설될 공간이 부족한 경우에는 PCB가 배면에 위치하는 것이 가능하다.In addition, the PCB 12 connected to the liquid crystal panel 1 through a tape carrier package 11 is interposed between the horizontal portion of the second frame 4 and the mold 6. This is because the outer portion of the screen is relatively large and has a space suitable for the PCB is excreted, but in this embodiment, when the PCB is not enough space to be excreted, it is possible to place the PCB on the back.

또한, 배광장치(2)는, 도시하지는 않았지만, 아래로부터 반사판, 도광판, 확산 또는 보호시트, 제 1 및 제 2 프리즘시트, 확산 또는 보호시트가 차례로 적층되어 이루어지고 있다.Although not shown, the light distribution device 2 is formed by stacking a reflecting plate, a light guide plate, a diffusion or protection sheet, a first and a second prism sheet, and a diffusion or protection sheet in order from the bottom.

또한, 상·하 기판의 이면에는 상·하 편광판(13)(14)이 위치하고, 상기 하부편광판(14)과 배광장치(2)의 보호시트 사이에는 빈 공간이 있는 데, 이는 진동 및 충격 실험시 하부편광판(14)과 보호시트가 충돌하면서 서로 흠집을 내는 것을 방지하기 위한 것이다. 그리고, 배광장치(2)의 램프(21)는 액정표시장치모듈의 길이(가로)방향으로 연장되어, 도 3에 도시한 바와 같이, 액정표시장치모듈의 상·하부 양단에 위치하고 있다. 배광장치(2)의 램프는 일반적으로 액정표시장치모듈의 상·하 양단에 각각 두 개씩 배설되어 있고, 램프(21)의 둘레에는 램프(21)에서 방출된 빛을 도광판으로 가이드하는 램프하우징(22)이 램프의 삼면을 감싸고 있다.In addition, the upper and lower polarizers 13 and 14 are located on the rear surface of the upper and lower substrates, and there is an empty space between the lower polarizing plate 14 and the protective sheet of the light distribution apparatus 2, which is a vibration and shock experiment. When the lower polarizing plate 14 and the protective sheet collide with each other to prevent scratching each other. Then, the lamp 21 of the light distribution device 2 extends in the length (horizontal) direction of the liquid crystal display module, and is positioned at both upper and lower ends of the liquid crystal display module, as shown in FIG. In general, two lamps of the light distribution device 2 are disposed at upper and lower ends of the liquid crystal display module, and a lamp housing for guiding light emitted from the lamp 21 to the light guide plate is disposed around the lamp 21. 22) It surrounds three sides of this lamp.

또한, 고휘도를 달성하기 위한 배광장치(2)의 램프(21)의 수의 증가에 따라 발생하는 열을 방출하는 방열구조로서 상기 방열플레이트(7)는 램프하우징(22)의 상부수평부와 접촉하여 상기 제 2프레임(4)의 수직부와 접촉하도록 절곡되어 연장되어 있고, 또한, 상기 제 1 프레임(3)이 램프하우징(22)의 수직부 및/또는 하부수평부와 접촉하여 상기 방열플레이트의 절곡부분과 접하도록 연장되어 있다. 이때, 액정패널 및 배광장치를 지지하기 위하여 상기 제 1 및 제 2프레임과 상기 방열플레이트는 나사와 같은 결합부재를 통하여 연결되어 있다. 즉, 배광장치(2)의 열은 제 1 프레임과 방열플레이트를 통하여 방열 된다. 또한, 상기 배광장치(2)의 램프하우징(22)의 상부수평부가, 종래의 액정표시장치모듈의 경우, 플라스틱재질의 몰드과 직접 접촉하여 램프하우징(22)의 착탈시 이물질이 발생하였지만, 본 발명의 실시예에 따른 방열플레이트(7)는 금속으로 되어 있어 램프하우징(22)의 착탈시 이물질이 생기는 것을 방지할 수 있다.In addition, the heat dissipation plate 7 is in contact with the upper horizontal portion of the lamp housing 22 as a heat dissipation structure for dissipating heat generated by an increase in the number of lamps 21 of the light distribution device 2 to achieve high brightness. Is bent and extended to be in contact with the vertical part of the second frame 4, and the first frame 3 is in contact with the vertical part and / or the lower horizontal part of the lamp housing 22 to form the heat dissipation plate. It extends to contact the bent part of. In this case, in order to support the liquid crystal panel and the light distribution device, the first and second frames and the heat dissipation plate are connected through a coupling member such as a screw. That is, heat of the light distribution apparatus 2 is radiated through the first frame and the heat radiating plate. In addition, the upper horizontal portion of the lamp housing 22 of the light distribution device 2, in the case of the conventional liquid crystal display device module, the foreign matter occurred when the lamp housing 22 is attached and detached by direct contact with the plastic mold, the present invention Heat dissipation plate 7 according to the embodiment of the metal can be prevented from generating foreign matters when the lamp housing 22 is attached and detached.

따라서, 종래의 액정표시장치모듈의 방열구조로서 제 1프레임 (3)만이 램프하우징의 수직부 및/또는 하부수평부에 배설되어 열을 방출할 수 있었지만, 본 발명에 따른 방열구조는 방열플레이트(7)가 추가되어 상부수평부의 열까지 방열할 수 있으므로 효과적으로 방열을 수행할 수 있다.Therefore, as the heat dissipation structure of the conventional liquid crystal display module, only the first frame 3 was disposed in the vertical portion and / or the lower horizontal portion of the lamp housing to dissipate heat, but the heat dissipation structure according to the present invention is a heat dissipation plate ( 7) can be added to dissipate up to the heat of the upper horizontal portion can be effectively radiated.

또한, 종래의 액정표시모듈의 몰드에 있어서, 램프하우징이 플라스틱몰드물과 접촉하여 이물질이 발생하였던 것과는 달리, 금속재질의 방열플레이트와 접촉하므로 이물질의 발생을 방지할 수 있다.In addition, in the mold of the liquid crystal display module according to the related art, unlike the case in which the lamp housing is in contact with the plastic molding, the foreign matter is generated, and thus the foreign matter is prevented from being generated because the lamp housing is in contact with the heat radiation plate made of metal.

Claims (8)

상·하 두 개의 기판과, 그 사이에 개재된 액정층을 가진 액정패널과;A liquid crystal panel having upper and lower substrates and a liquid crystal layer interposed therebetween; 상기 액정패널 하부에 위치하고, 램프와 램프하우징을 가진 배광장치와;A light distribution device disposed below the liquid crystal panel and having a lamp and a lamp housing; 상기 배광장치의 배면에 위치하고, 외곽에 플랜지부를 가진 제 1 프레임과;A first frame disposed on a rear surface of the light distribution apparatus and having a flange portion at an outer side thereof; 상기 액정패널의 상부에 위치하여 상기 제 1 프레임의 플랜지부와 결합하여 상기 액정패널 및 배광장치를 지지하는 제 2 프레임과;A second frame positioned above the liquid crystal panel and coupled to the flange portion of the first frame to support the liquid crystal panel and the light distribution device; 상기 램프하우징의 상부에 위치하여 상기 배광장치의 열을 방열시키는 방열플레이트A heat dissipation plate positioned above the lamp housing to dissipate heat of the light distribution apparatus 를 포함하는 액정표시장치모듈.Liquid crystal display module comprising a. 제 1항에 있어서,The method of claim 1, 상기 방열플레이트는 금속재질인 액정표시장치모듈.The heat dissipation plate is a liquid crystal display module of a metal material. 제 1항에 있어서,The method of claim 1, 상기 방열프레임은 상기 제 1 프레임의 플랜지부까지 연장된 액정표시장치모듈.The heat dissipation frame extends to the flange portion of the first frame. 제 3항에 있어서,The method of claim 3, wherein 상기 방열프레임은 상기 끝단에 형성된 수직부를 더욱 포함하는 액정표시장치모듈.The heat dissipation frame further comprises a vertical portion formed at the end. 제 1항에 있어서,The method of claim 1, 상기 제 1 및 제 2 프레임의 가장자리는 수직부를 가지고 있으며, 상기 방열플레임의 수직부는 상기 제 1 및 제 2 프레임의 수직부 사이에 개재되는 액정표시장치모듈.Edges of the first and second frames have a vertical portion, and the vertical portion of the heat radiation frame is interposed between the vertical portions of the first and second frame. 제 1항에 있어서,The method of claim 1, 상기 제 1 프레임은 금속재질인 액정표시장치모듈.And the first frame is made of metal. 제 1항에 있어서,The method of claim 1, 상기 배광장치는 적어도 2개의 램프를 가지고 있는 액정표시장치모듈.And the light distribution device has at least two lamps. 제 1항에 있어서,The method of claim 1, 상기 배광장치는 적어도 마주보는 양측에 각각 램프하우징을 가지고 있으며, 상기 방열플레이트는 적어도 2개이고, 각각은 상기 각 램프하우징의 길이방향을 따라 연장된 액정표시장치모듈.The light distribution device has at least two lamp housings facing each other, and at least two heat dissipation plates, each of which extends along a longitudinal direction of each lamp housing.
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US8120722B2 (en) 2007-01-17 2012-02-21 Samsung Mobile Display Co., Ltd. Display device with a bottom chassis
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US8511885B2 (en) 2010-07-16 2013-08-20 Lg Innotek Co., Ltd. Light emitting device assembly, backlight unit and display device having the same
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