KR19990075202A - LCD Module - Google Patents
LCD Module Download PDFInfo
- Publication number
- KR19990075202A KR19990075202A KR1019980009279A KR19980009279A KR19990075202A KR 19990075202 A KR19990075202 A KR 19990075202A KR 1019980009279 A KR1019980009279 A KR 1019980009279A KR 19980009279 A KR19980009279 A KR 19980009279A KR 19990075202 A KR19990075202 A KR 19990075202A
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- South Korea
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- light guide
- guide plate
- lamp
- plate
- lcd module
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL 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
- G02F1/00—Devices 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
- G02F1/01—Devices 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
- G02F1/13—Devices 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
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
- G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
- G02B6/0025—Diffusing sheet or layer; Prismatic sheet or layer
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
- G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
- G02B6/0031—Reflecting element, sheet or layer
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
- G02B6/0051—Diffusing sheet or layer
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
- G02B6/0085—Means for removing heat created by the light source from the package
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Planar Illumination Modules (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
- Liquid Crystal (AREA)
Abstract
본 발명은 LCD 모듈에 관한 것으로, 본 발명에서는 도광판의 후면에 형성된 후면 반사판에 열방출이 용이한 방열판을 부착시키고, 이를 통해, 램프로부터 도광판으로 전달되는 열을 외부로 신속히 방출시킴으로써, 도광판의 변형을 미연에 방지시킬 수 있다.The present invention relates to an LCD module, and in the present invention, by attaching a heat dissipation plate that is easy to dissipate heat to a rear reflector formed on a rear surface of the light guide plate, and thereby quickly dissipating heat transferred from the lamp to the light guide plate to the outside, the deformation of the light guide plate Can be prevented in advance.
Description
본 발명은 엘씨디(LCD) 모듈에 관한 것으로, 좀더 상세하게는 후면 반사판의 일측에 방열판을 부착시키고, 이를 통해, 램프로부터 도광판으로 전달되는 열을 신속히 방출시킴으로써, 방열판의 변형을 미리 방지시킬 수 있도록 하는 LCD 모듈에 관한 것이다.The present invention relates to an LCD (LCD) module, and more particularly, by attaching a heat sink to one side of the rear reflector, thereby quickly dissipating heat transferred from the lamp to the light guide plate, so as to prevent deformation of the heat sink in advance. It relates to an LCD module.
최근, 현대 사회가 정보 사회화 되어감에 따라 정보 표시 장치의 하나인 LCD 장치의 중요성은 점차 증대되는 추세에 있다.Recently, as the modern society becomes information socialized, the importance of the LCD device, which is one of the information display devices, is gradually increasing.
이러한 LCD 장치에서 특히, 백라이트의 역할과 기능은 갈수록 중요한 과제로 대두되고 있는 데, 이는 백라이트의 구조에 따라서 LCD 장치의 크기 및 광효율 등이 달라져 전체적인 LCD 장치의 기계적/광학적 특성이 많은 영향을 받기 때문이다.In such an LCD device, the role and function of the backlight are becoming more and more important problems, because the size and light efficiency of the LCD device vary depending on the structure of the backlight, which affects the mechanical and optical characteristics of the overall LCD device. to be.
도 1에 도시된 바와 같이, 몰드 프레임(미도시) 내에 수용된 도광판(1)의 일측에는 LCD 장치의 광원으로 사용되는 램프(2)가 설치되고, 이러한 램프(2)는 램프 반사판(3)에 감싸져 있다.As shown in FIG. 1, one side of the light guide plate 1 accommodated in a mold frame (not shown) is provided with a lamp 2 used as a light source of the LCD device, and the lamp 2 is mounted on the lamp reflector 3. Wrapped
이때, 도광판(1)의 후면에는 램프(2)의 빛을 도광판(1)의 전면으로 반사하는 후면 반사판(7)이 도광판(1)과 일정간격 이격되어 형성되며, 도광판(1)의 전면에는 입사되는 빛을 균일하게 하는 확산판(4)이 형성된다.At this time, a rear reflector 7 reflecting the light of the lamp 2 to the front of the light guide plate 1 is formed on the rear surface of the light guide plate 1 and spaced apart from the light guide plate 1 by a predetermined distance. A diffuser plate 4 is formed which makes incident light uniform.
또한, 확산판(4)의 전면에는 입사되는 빛의 휘도를 향상시키기 위한 프리즘 시트(5)가 이중(5a,5b)으로 형성된다. 통상, 프리즘시트(5)는 스크래치에 민감하기 때문에 프리즘시트(5)의 전면에는 보호기능을 갖는 보호막(6)이 부착되어 프리즘시트(5)를 보호한다.In addition, the prism sheet 5 for improving the brightness of the incident light is formed on the front surface of the diffuser plate 4 in doubles 5a and 5b. In general, since the prism sheet 5 is sensitive to scratches, a protective film 6 having a protective function is attached to the front surface of the prism sheet 5 to protect the prism sheet 5.
한편, 이러한 보호막(6)의 전면에는 정보를 디스플레이하는 LCD 패널(미도시)이 놓여저 양호한 정보 디스플레이 기능을 수행한다.On the other hand, an LCD panel (not shown) for displaying information is placed in front of the protective film 6 to perform a good information display function.
그러나, 이러한 구성을 갖는 종래의 LCD 모듈에는 몇 가지 중대한 문제점이 있다.However, there are some serious problems with the conventional LCD module having such a configuration.
먼저, 상술한 도광판 및 몰드 프레임은 램프와 인접한 관계로 램프로부터 발산되는 열이 상당량 전달받는 데, 이때, 도광판 및 몰드 프레임은 서로 열팽창되는 정도가 매우 다르기 때문에, 몰드 프레임 내에 수용된 도광판은 열팽창 공간의 제약을 받음으로써, 일정 방향으로 휘게 된다.First, the light guide plate and the mold frame described above receive a considerable amount of heat emitted from the lamp because they are adjacent to the lamp. At this time, since the light guide plate and the mold frame have very different degrees of thermal expansion, the light guide plate accommodated in the mold frame is formed in the thermal expansion space. By being constrained, it bends in a certain direction.
이러한 과정을 통해 도광판이 휠 경우, 장치 전체의 화상 품질은 현저히 저하된다.If the light guide plate is wheeled through this process, the image quality of the entire apparatus is significantly reduced.
따라서, 본 발명의 목적은 도광판의 후면에 형성된 후면 반사판에 열방출이 용이한 방열판을 부착시키고, 이를 통해, 램프로부터 도광판으로 전달되는 열을 외부로 신속히 방출시킴으로써, 도광판의 변형을 미연에 방지시키는 데 있다.Accordingly, an object of the present invention is to attach a heat dissipation plate that is easy to dissipate heat to the rear reflector formed on the rear surface of the light guide plate, thereby quickly dissipating heat transferred from the lamp to the light guide plate to the outside, thereby preventing deformation of the light guide plate in advance. There is.
도 1은 종래의 LCD 모듈의 구조를 개략적으로 도시한 단면도.1 is a cross-sectional view schematically showing the structure of a conventional LCD module.
도 2는 본 발명에 따른 LCD 모듈의 구조를 개략적으로 도시한 단면도.2 is a cross-sectional view schematically showing the structure of an LCD module according to the present invention;
상기와 같은 목적을 달성하기 위한 본 발명은 램프와; 상기 램프를 감싼 램프 반사판과; 몰드 프레임 내에 수용되고, 상기 램프의 일측에 형성된 도광판과; 상기 도광판 후면과 일정간격 이격되어 형성된 후면 반사판과; 상기 도광판 전면에 형성된 확산판과; 상기 확산판 전면에 형성된 프리즘시트와; 상기 프리즘시트 전면에 형성된 보호막을 포함하며, 상기 후면 반사판의 일측에는 상기 램프로부터 상기 도광판으로 전달된 열을 방출시키기 위한 방열판이 부착되는 것을 특징으로 한다.The present invention for achieving the above object and the lamp; A lamp reflector surrounding the lamp; A light guide plate accommodated in a mold frame and formed on one side of the lamp; A rear reflection plate formed to be spaced apart from the rear surface of the light guide plate by a predetermined distance; A diffusion plate formed on an entire surface of the light guide plate; A prism sheet formed on the entire surface of the diffusion plate; And a heat shield for dissipating heat transferred from the lamp to the light guide plate on one side of the rear reflector.
이에 따라, 본 발명에서는 도광판의 변형이 미연에 방지된다.Accordingly, in the present invention, deformation of the light guide plate is prevented in advance.
이하, 첨부된 도면을 참조하여 본 발명에 따른 LCD 모듈을 좀더 상세히 설명하면 다음과 같다.Hereinafter, the LCD module according to the present invention will be described in more detail with reference to the accompanying drawings.
도 2에 도시된 바와 같이, 본 발명에 따른 LCD 모듈은 램프(2)와, 램프(2)를 감싼 램프 반사판(3)과, 몰드 프레임 내에 수용되고, 램프(2)의 일측에 형성된 도광판(1)과, 도광판(1) 후면과 일정간격 이격되어 형성된 후면 반사판(7)과, 도광판(1) 전면에 형성된 확산판(4)과, 확산판(4) 전면에 형성된 프리즘시트(5)와, 프리즘시트(5) 전면에 형성된 보호막(6)을 포함한다.As shown in FIG. 2, the LCD module according to the present invention includes a lamp 2, a lamp reflector 3 surrounding the lamp 2, a light guide plate accommodated in a mold frame, and formed on one side of the lamp 2. 1), a rear reflector 7 formed at a predetermined distance from the rear surface of the light guide plate 1, a diffuser plate 4 formed on the front surface of the light guide plate 1, a prism sheet 5 formed on the front surface of the diffuser plate 4, And a protective film 6 formed on the entire surface of the prism sheet 5.
이때, 후면 반사판(7)의 일측에는 금속재질, 예컨대, 알루미늄 재질의 방열판(10)이 부착된다. 이에 따라, 램프(2)로부터 도광판(1)으로 전달된 열은 후면 반사판(7) 및 방열판(10)을 경유하여 외부로 신속히 방출된다.At this time, one side of the rear reflector 7 is attached to a heat sink 10 of a metal material, for example, aluminum. Accordingly, the heat transferred from the lamp 2 to the light guide plate 1 is quickly discharged to the outside via the rear reflector 7 and the heat sink 10.
종래의 경우, 도광판 및 몰드 프레임은 램프와 인접한 관계로 램프로부터 발산되는 열을 상당량 전달받았는 데, 이때, 도광판 및 몰드 프레임은 서로 열팽창되는 정도가 매우 다르기 때문에, 몰드 프레임 내에 수용된 도광판은 열팽창 공간의 제약을 받음으로써, 일정 방향으로 휘는 문제점을 유발하였다.In the conventional case, the light guide plate and the mold frame received a considerable amount of heat emitted from the lamp in a close relationship with the lamp. In this case, since the light guide plate and the mold frame are different in thermal expansion from each other, the light guide plate accommodated in the mold frame has a large amount of thermal expansion space. By being constrained, it caused a problem of bending in a certain direction.
그러나, 본 발명의 경우, 상술한 바와 같이, 도광판(1)의 후면에 형성된 후면 반사판(7)에는 램프(2)로부터 도광판(1)으로 전달된 열을 방출시킬 수 있는 방열판(10)이 부착되기 때문에, 도광판(1)에 축적된 열은 후면 반사판(7) 및 방열판(10)을 경유하여 외부로 신속히 방출될 수 있고, 이에 따라, 도광판(1)은 자신의 열팽창 정도를 양호하게 억제시킬 수 있음으로써, 몰드 프레임에 의해 공간의 제약이 가해지더라도 변형되지 않게 된다. 그 결과, 장치의 전체적인 표시품질은 현저히 향상된다.However, in the case of the present invention, as described above, the heat reflection plate 10 that is capable of dissipating heat transferred from the lamp 2 to the light guide plate 1 is attached to the rear reflector 7 formed on the rear surface of the light guide plate 1. Therefore, the heat accumulated in the light guide plate 1 can be quickly released to the outside via the rear reflector 7 and the heat sink 10, whereby the light guide plate 1 can suppress the degree of thermal expansion thereof well. By doing so, even if space is imposed by the mold frame, it is not deformed. As a result, the overall display quality of the apparatus is significantly improved.
이러한 본 발명에 따른 LCD 모듈에서, 먼저, 램프(2)로부터 조사된 빛이 직접 도광판(1)의 내부로 입사되거나 램프 반사판(3)에 반사되어 도광판(1)의 일측면으로 입사되면, 도광판(1)은 입사되는 빛을 도광판(1) 전면에 코팅되어 있는 확산판(4)으로 전달한다.In the LCD module according to the present invention, first, when the light irradiated from the lamp 2 is directly incident into the light guide plate 1 or reflected by the lamp reflector 3 to be incident on one side of the light guide plate 1, the light guide plate (1) transmits the incident light to the diffusion plate (4) coated on the light guide plate (1).
이때, 상술한 바와 같이, 도광판(1)의 후면에 형성된 후면 반사판(7)에는 본 발명의 방열판(10)이 부착되기 때문에 램프(2)로부터 도광판(1)으로 전달되는 열은 방열판(10)을 통해 외부로 신속히 방출되며, 이에 따라, 열 축적에 의한 도광판(1)의 변형은 미연에 방지된다.At this time, as described above, since the heat sink 10 of the present invention is attached to the rear reflector 7 formed on the back of the light guide plate 1, the heat transferred from the lamp 2 to the light guide plate 1 is the heat sink 10. It is quickly released to the outside through, thus, deformation of the light guide plate 1 due to heat accumulation is prevented in advance.
이어서, 확산판(4)은 도광판(1)으로부터 입사되는 빛을 자신의 전면에 코팅되어 있는 프리즘시트(5)로 전달하고, 프리즘시트(5)는 확산판(4)으로부터 입사되는 빛을 자신의 전면에 코팅되어 있는 보호막(6)으로 전달한다.Subsequently, the diffuser plate 4 transmits light incident from the light guide plate 1 to the prism sheet 5 coated on its front surface, and the prism sheet 5 transmits light incident from the diffuser plate 4 to itself. Transfer to the protective film 6 is coated on the front.
이후, 보호막(6)은 프리즘시트(5)로부터 입사된 빛을 LCD 패널의 배면으로 전달함으로써, LCD 패널에 사용자가 원하는 적정 정보를 디스플레이시킨다.Then, the protective film 6 transmits the light incident from the prism sheet 5 to the back of the LCD panel, thereby displaying appropriate information desired by the user on the LCD panel.
이와 같이, 본 발명에서는 후면 반사판의 일측에 방열판을 부착시키고, 이를 통해, 램프로부터 도광판으로 전달되는 열을 신속히 방출시킴으로써, 방열판의 변형을 미리 방지시킬 수 있다.As described above, in the present invention, the heat sink is attached to one side of the rear reflector, thereby quickly dissipating heat transferred from the lamp to the light guide plate, thereby preventing deformation of the heat sink in advance.
이러한 본 발명은 생산라인에서 제조되어지는 전 기종의 LCD 모듈에서 전반적으로 유용한 효과를 나타낸다.The present invention has an overall useful effect in all kinds of LCD modules to be manufactured in the production line.
그리고, 본 발명의 특정한 실시예가 설명되고 도시되었지만 본 발명이 당업자에 의해 다양하게 변형되어 실시될 가능성이 있는 것은 자명한 일이다.And while certain embodiments of the invention have been described and illustrated, it will be apparent that the invention may be embodied in various modifications by those skilled in the art.
이와 같은 변형된 실시예들은 본 발명의 기술적사상이나 관점으로부터 개별적으로 이해되어서는 안되며 이와 같은 변형된 실시예들은 본 발명의 첨부된 특허청구의 범위안에 속한다 해야 할 것이다.Such modified embodiments should not be understood individually from the technical spirit or point of view of the present invention and such modified embodiments should fall within the scope of the appended claims of the present invention.
이상에서 상세히 설명한 바와 같이, 본 발명에 따른 LCD 모듈에서는 도광판의 후면에 형성된 후면 반사판에 열방출이 용이한 방열판을 부착시키고, 이를 통해, 램프로부터 도광판으로 전달되는 열을 외부로 신속히 방출시킴으로써, 도광판의 변형을 미연에 방지시킬 수 있다.As described above in detail, the LCD module according to the present invention attaches a heat dissipation plate that is easy to dissipate heat to a rear reflector formed on the rear surface of the light guide plate, thereby quickly dissipating heat transferred from the lamp to the light guide plate to the outside, thereby guiding the light guide plate. Can be prevented in advance.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019980009279A KR100500634B1 (en) | 1998-03-18 | 1998-03-18 | LCD Module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019980009279A KR100500634B1 (en) | 1998-03-18 | 1998-03-18 | LCD Module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR19990075202A true KR19990075202A (en) | 1999-10-15 |
| KR100500634B1 KR100500634B1 (en) | 2005-10-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| KR1019980009279A KR100500634B1 (en) | 1998-03-18 | 1998-03-18 | LCD Module |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100801023B1 (en) * | 2005-10-24 | 2008-02-04 | 엘지전자 주식회사 | Backlight unit with thermal spreading layer, display apparatus including the same, and method of manufacturing thermal spreading layer |
| KR100888435B1 (en) * | 2007-05-28 | 2009-03-11 | 금호전기주식회사 | Planar display device having a plurality of reflectors |
| US7798694B2 (en) | 2005-10-24 | 2010-09-21 | Lg Electronics Inc. | Thermal layer, backlight unit and display device including the same |
| WO2015006998A1 (en) * | 2013-07-16 | 2015-01-22 | 深圳市华星光电技术有限公司 | Backlight module |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2797038B2 (en) * | 1991-10-03 | 1998-09-17 | シャープ株式会社 | LCD lighting system |
| JPH06194650A (en) * | 1992-12-25 | 1994-07-15 | Citizen Watch Co Ltd | Display device |
| JP3679428B2 (en) * | 1994-05-25 | 2005-08-03 | 三洋電機株式会社 | LCD module |
| JPH07325302A (en) * | 1994-06-01 | 1995-12-12 | Toshiba Corp | Liquid crystal display device |
| JPH08129174A (en) * | 1994-10-31 | 1996-05-21 | Kyocera Corp | Illuminator for liquid crystal display device |
-
1998
- 1998-03-18 KR KR1019980009279A patent/KR100500634B1/en not_active IP Right Cessation
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100801023B1 (en) * | 2005-10-24 | 2008-02-04 | 엘지전자 주식회사 | Backlight unit with thermal spreading layer, display apparatus including the same, and method of manufacturing thermal spreading layer |
| US7798694B2 (en) | 2005-10-24 | 2010-09-21 | Lg Electronics Inc. | Thermal layer, backlight unit and display device including the same |
| KR100888435B1 (en) * | 2007-05-28 | 2009-03-11 | 금호전기주식회사 | Planar display device having a plurality of reflectors |
| WO2015006998A1 (en) * | 2013-07-16 | 2015-01-22 | 深圳市华星光电技术有限公司 | Backlight module |
Also Published As
| Publication number | Publication date |
|---|---|
| KR100500634B1 (en) | 2005-10-12 |
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