KR100293812B1 - Back light unit with detachable mold frame - Google Patents
Back light unit with detachable mold frame Download PDFInfo
- Publication number
- KR100293812B1 KR100293812B1 KR1019980022944A KR19980022944A KR100293812B1 KR 100293812 B1 KR100293812 B1 KR 100293812B1 KR 1019980022944 A KR1019980022944 A KR 1019980022944A KR 19980022944 A KR19980022944 A KR 19980022944A KR 100293812 B1 KR100293812 B1 KR 100293812B1
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- plate
- light guide
- guide plate
- mold frame
- liquid crystal
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- 239000002184 metal Substances 0.000 claims abstract description 7
- 230000003287 optical effect Effects 0.000 claims abstract description 5
- 239000004973 liquid crystal related substance Substances 0.000 description 31
- 230000001681 protective effect Effects 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005549 size reduction Methods 0.000 description 1
Classifications
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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
- G02B6/0031—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
- G02B6/0081—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
- G02B6/0086—Positioning aspects
- G02B6/0088—Positioning aspects of the light guide or other optical sheets in the package
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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
- G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
-
- 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
- G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
- G02F1/133317—Intermediate frames, e.g. between backlight housing and front frame
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)
- Liquid Crystal (AREA)
Abstract
본 발명은 분리형 몰드 프레임을 갖는 백 라이트 유니트를 개시한다. 개시된 본 발명은, 몰드 프레임이 좌우 2개의 프레임(20,21)으로 분리되고, 각 프레임(20,21)에 도광판(2)이 끼워져서 기본 골격을 이루게 된다. 반사판(4)은 도광판(2)의 하부에, 각종 광학판은 도광판(2)의 상부에 배치되어, 각 프레임(20,21)에 고정된다. 각 판들의 하부는 반사판(4)의 하부에 배치되어 각 프레임(20,21)에 고정된 금속판(30)에 의해 지지된다. 또한, 각 프레임(20,21)의 하단에 노트북 본체에 힌지연결되기 위한 힌지핀(22,23)이 일체로 설치되어서, 백 커버에 별도의 브래킷을 설치할 필요가 없어지게 되므로써, 백 라이트 유니트의 경량 및 박형화가 실현된다.The present invention discloses a backlight unit having a detachable mold frame. In the disclosed invention, the mold frame is divided into two left and right frames 20 and 21, and the light guide plate 2 is fitted into each of the frames 20 and 21 to form a basic skeleton. The reflecting plate 4 is disposed under the light guide plate 2, and various optical plates are disposed above the light guide plate 2 and fixed to the respective frames 20 and 21. The lower part of each plate is supported by the metal plate 30 which is arrange | positioned under the reflecting plate 4, and is fixed to each frame 20,21. In addition, since the hinge pins 22 and 23 for hinge connection to the notebook body are integrally installed at the lower ends of the frames 20 and 21, there is no need to install a separate bracket on the back cover. Light weight and thinness are realized.
Description
본 발명은 백 라이트 유니트에 관한 것으로서, 보다 구체적으로는 백 라이트 유니트의 형광 램프 및 각종 광학판을 지지하는 몰드 프레임에 관한 것이다.The present invention relates to a backlight unit, and more particularly, to a mold frame for supporting a fluorescent lamp and various optical plates of the backlight unit.
액정표시소자란 화상 표시 기구의 하나로써, 다른 화상 표시 기구인 씨알티(CRT)에 비해 경박단소형화 및 저소비전력을 실현할 수 있다는 장점이 있다. 이와 같은 액정표시소자는 씨알티와는 달리 스스로 빛을 내는 소자가 아니기 때문에 액정 화면 외에 광원을 필요로 하게 된다.The liquid crystal display device is one of the image display mechanisms, and has an advantage of realizing light and small size reduction and low power consumption as compared to CRT, which is another image display mechanism. Unlike LCD, since the LCD does not emit light by itself, it requires a light source in addition to the LCD screen.
이러한 액정표시소자의 광원으로는 현재 형광램프(CCLF 또는 HCFL)가 사용되고 있으며, 상기 램프의 설치 위치에 따라 직하식 백 라이트 장치와 에지-라이트식 백 라이트 장치로 구분된다. 직하식 백 라이트 장치는 형광램프에서 발생된 빛을 확산판을 이용하여 균일화시킨 후, 이 빛을 액정패널에 입사시키는 구조이고, 에지-라이트식 백 라이트 장치는 형광램프의 빛을 도광판을 통해 액정패널에 입사시키는 구조로 되어 있는 바, 에지-라이트식 백 라이트 장치의 전형적인 한 예를 도 1을 참고로 하여 설명하면 다음과 같다.Fluorescent lamps (CCLF or HCFL) are currently used as the light source of the liquid crystal display, and are classified into direct backlight devices and edge-lit backlight devices according to the installation positions of the lamps. The direct backlight unit is a structure in which the light generated from the fluorescent lamp is uniformized using a diffuser plate, and then the light is incident on the liquid crystal panel, and the edge-lit backlight unit is configured to pass the light of the fluorescent lamp through the light guide plate. As a structure having an incident structure on a panel, a typical example of an edge-lit backlight device will be described with reference to FIG. 1.
광원인 형광 램프(1)의 측면에 빛을 산란시켜 균일화시키는 도광판(2)이 부착,설치되어 있다. 형광 램프(1)는 램프 반사체(3)로 둘러싸여 있어서, 형광 램프(1)에서 발해진 빛은 직접, 또는 램프 반사체(3)에 반사되어 도광판(2)으로 입사된다.The light guide plate 2 which scatters light and makes it uniform is attached to the side surface of the fluorescent lamp 1 which is a light source. The fluorescent lamp 1 is surrounded by the lamp reflector 3, so that the light emitted from the fluorescent lamp 1 is directly or reflected by the lamp reflector 3 and enters the light guide plate 2.
도광판(2)의 상면에는 확산판(5)이 배치되어 있으며, 하면에는 반사판(4)이 배치되어 있다. 확산판(5)은 액정 패널(미도시)로 입사되는 빛의 균일도를 높여 주기 위한 것이고, 반사판(4)은 형광 램프(1)에서 발생된 빛의 외부 누출, 즉 도광판(2)의 하부로 빛이 누출되는 것을 방지하기 위한 것이다. 또한, 확산판(5)의 상부에는 빛의 진행 경로를 전환시키고, 그 휘도를 도출하기 위한 한 쌍의 상부 및 하부 프리즘판(7,6)이 배치되어 있다. 프리즘판(6,7)의 형상 보호를 위해, 프리즘 상판(7)상에 보호판(8)이 배치되어 있고, 액정 패널은 보호판(8) 상부에 소정 거리를 두고 이격배치되어 있다. 각 구성요소는 몰드 프레임(9)으로 지지되어 있다.A diffuser plate 5 is disposed on the upper surface of the light guide plate 2, and a reflector plate 4 is disposed on the lower surface of the light guide plate 2. The diffuser plate 5 is to increase the uniformity of light incident on the liquid crystal panel (not shown), and the reflector plate 4 is an external leakage of light generated from the fluorescent lamp 1, that is, the lower part of the light guide plate 2. This is to prevent light leakage. In addition, a pair of upper and lower prism plates 7 and 6 are arranged on the upper part of the diffusion plate 5 to switch the light propagation path and derive the brightness. In order to protect the shape of the prism plates 6 and 7, the protective plate 8 is arranged on the prism upper plate 7, and the liquid crystal panel is spaced apart from the protective plate 8 at a predetermined distance. Each component is supported by a mold frame 9.
이와 같이 구성된 백 라이트 유니트는, 형광램프로부터 방사된 빛이 직접, 또는 램프 반사체에 의해 반사되어 도광판으로 입사되고, 이어서 확산판과 프리즘판을 통해 액정 패널로 입사되어 소정의 화상이 형성되도록 하는 바, 이때 형광 램프에서 나온 빛은 반사판에 의해 외부로의 누출이 방지된 채 도광판으로 입사되어 고르게 산란되고, 이와 같이 산란된 빛은 확산판에 의해 더욱 균일화된 후, 각 상부 및 하부 프리즘판을 통과하면서 일정각으로 진행 경로가 전환된 후, 액정 패널로 입사된다.The backlight unit configured as described above allows the light emitted from the fluorescent lamp to be directly or reflected by the lamp reflector to be incident on the light guide plate, and then to the liquid crystal panel through the diffusion plate and the prism plate to form a predetermined image. In this case, the light emitted from the fluorescent lamp is incident to the light guide plate while being prevented from leaking to the outside by the reflecting plate, and is scattered evenly. The scattered light is further uniformed by the diffuser plate, and then passes through each upper and lower prism plate. While the traveling path is switched at a predetermined angle while being incident on the liquid crystal panel.
상기와 같이 구성된 백 라이트 유니트는 도 2에 도시된 바와 같이, 액정 모듈(10)로 조립되어서, 도 4와 같이 노트북과 같은 시스템에 조립된다. 즉, 액정 모듈(10)은 백 커버(11)에 조립되고, 백 커버(11)에는 노트북 본체에 힌지연결되기 위한 브래킷(12)이 설치되어 있다. 즉, 도 3와 같이 브래킷(12)의 하단에는 힌지핀(13)이 설치되어 있어서, 각 힌지핀(13)이 노트북 본체에 끼워지게 된다.As shown in FIG. 2, the backlight unit configured as described above is assembled to the liquid crystal module 10, and thus assembled to a system such as a notebook as illustrated in FIG. 4. That is, the liquid crystal module 10 is assembled to the back cover 11, and the back cover 11 is provided with a bracket 12 for hinge connection to the notebook body. That is, as shown in Figure 3, the lower end of the bracket 12, the hinge pin 13 is installed, each hinge pin 13 is fitted to the notebook body.
액정 모듈의 경량 및 박형화를 실현하기 위한 각종 방안이 연구되고 있는데, 몰드 프레임(9)의 두께로 인하여 제약이 따랐다. 즉, 몰드 프레임(9)의 재료로 주로 사용되는 플라스틱을 너무 얇게 제작하는 경우, 우선 양산하는데 무리가 있으며 특히 강도상에도 문제가 있다.Various methods for realizing the light weight and thinning of the liquid crystal module have been studied, but the limitation has been due to the thickness of the mold frame 9. That is, when the plastic mainly used as the material of the mold frame 9 is made too thin, there is a problem in mass production first, and in particular, there is also a problem in strength.
또한, 액정 모듈을 노트북 본체에 힌지연결하기 위해서, 힌지핀(13)이 구비된 브래킷(12)이 별도로 필요하게 되므로, 부품의 수가 증가되고 경량 및 박형화를 실현할 수 없었다.In addition, in order to hinge the liquid crystal module to the notebook body, the bracket 12 provided with the hinge pin 13 is required separately, so that the number of parts is increased and the weight and thickness can not be realized.
따라서, 본 발명은 종래의 몰드 프레임으로 인한 액정 모듈의 박형화 제약을 해소하기 위해 안출된 것으로서, 몰드 프레임의 두께가 액정 모듈의 전체 두께에 합산되지 않도록 하여, 액정 모듈의 경량 및 박형화를 실현할 수 있는 백 라이트 유니트를 제공하는데 목적이 있다.Accordingly, the present invention has been made to solve the thinning constraint of the liquid crystal module due to the conventional mold frame, so that the thickness of the mold frame does not add up to the overall thickness of the liquid crystal module, thereby realizing light weight and thinning of the liquid crystal module. The purpose is to provide a backlight unit.
다른 목적은 별도의 브래킷 없이 액정 모듈을 직접 노트북 본체에 힌지연결할 수 있도록 하여, 부품수를 줄이고 시스템의 경량 및 박형화를 실현할 수 있게 하는데 있다.Another object is to allow the liquid crystal module to be hinged directly to the notebook body without a separate bracket, to reduce the number of parts and to realize a lightweight and thinner system.
도 1은 종래의 백 라이트 유니트를 나타낸 사시도1 is a perspective view showing a conventional backlight unit
도 2는 종래의 백 라이트 유니트로 조립된 액정 모듈을 나타낸 도면2 is a view showing a liquid crystal module assembled with a conventional backlight unit
도 3은 종래의 액정 모듈을 노트북 본체에 설치하기 위해 사용되는 종래 백 커버를 나타낸 도면3 is a view showing a conventional back cover used to install a conventional liquid crystal module in a notebook body;
도 4는 백 커버에 액정 모듈이 조립된 상태를 나타낸 도면4 is a view illustrating a state in which a liquid crystal module is assembled to a back cover;
도 5는 본 발명에 따른 백 라이트 유니트를 나타낸 분해 사시도5 is an exploded perspective view showing a backlight unit according to the present invention;
도 6은 본 발명에 따른 백 라이트 유니트로 조립된 액정 모듈 전체를 나타낸 도면6 is a view showing the entire liquid crystal module assembled with a backlight unit according to the present invention;
도 7은 액정 모듈을 노트북 본체에 설치하기 위해 사용되는 백 커버를 나타낸 도면7 illustrates a back cover used to install a liquid crystal module in a notebook body;
도 8은 액정 모듈이 백 커버에 설치된 상태를 나타낸 도면8 is a view showing a state in which the liquid crystal module is installed in the back cover
도 9은 본 발명의 다른 실시예에로서, 베젤을 사용하지 않은 액정 모듈을 나타낸 도면9 is a view showing a liquid crystal module without using a bezel according to another embodiment of the present invention.
- 도면의 주요 부분에 대한 부호의 설명 --Explanation of symbols for the main parts of the drawing-
1 - 형광 램프 2 - 도광판1-fluorescent lamp 2-light guide plate
4 - 반사판 5 - 확산판4-reflector 5-diffuser
6,7 - 프리즘판 8 - 보호판6,7-Prism Plate 8-Shield
20,21 - 몰드 프레임 30 - 금속판20,21-Mold frame 30-Metal plate
22,23 - 힌지핀22,23-hinge pins
상기와 같은 목적을 달성하기 위해 본 발명에 따른 백 라이트 유니트는 다음과 같은 구성을 갖는다.In order to achieve the above object, the backlight unit according to the present invention has the following configuration.
도광판이 2개로 분리된 좌우 프레임에 끼워진다. 도광판의 하부에 반사판, 상부에는 각종 광학판이 설치된다. 반사판의 하부에는 금속판이 배치된다. 또한, 각 프레임에는 노트북과 같은 시스템에 힌지연결되기 위한 힌지핀이 일체로 형성된다.The light guide plate is fitted to the two left and right frames. A reflecting plate is provided below the light guide plate, and various optical plates are provided above. A metal plate is disposed below the reflecting plate. In addition, each frame is integrally formed with a hinge pin for hinge connection to a system such as a notebook.
상기된 본 발명의 구성에 의하면, 몰드 프레임이 좌우 2개의 프레임으로 분리되어, 백 라이트 유니트의 두께를 증가시키지 않게 되므로, 액정 모듈의 박형화가 실현되고, 강도 측면에서는 금속판으로 충분히 보강된다. 또한, 각 프레임에 힌지핀이 일체로 구비되어 있으므로, 별도의 브래킷이 필요하지 않게 되어 노트북과 같은 시스템의 경량 및 박형화가 실현된다.According to the above-described configuration of the present invention, since the mold frame is separated into two left and right frames so as not to increase the thickness of the backlight unit, the liquid crystal module can be made thinner and sufficiently reinforced with a metal plate in terms of strength. In addition, since the hinge pins are integrally provided in each frame, a separate bracket is not required, so that the weight and thickness of a system such as a notebook can be realized.
이하, 본 발명의 바람직한 실시예를 첨부도면에 의거하여 상세히 설명한다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
도 5는 본 발명에 따른 백 라이트 유니트를 나타낸 분해 사시도이고, 도 6은 본 발명에 따른 백 라이트 유니트로 조립된 액정 모듈 전체를 나타낸 도면이며, 도 7은 액정 모듈을 노트북 본체에 설치하기 위해 사용되는 백 커버를 나타낸 도면이고, 도 8은 액정 모듈이 백 커버에 설치된 상태를 나타낸 도면이다.5 is an exploded perspective view showing a backlight unit according to the present invention, Figure 6 is a view showing the entire liquid crystal module assembled with the backlight unit according to the present invention, Figure 7 is used to install the liquid crystal module in the notebook body FIG. 8 is a view illustrating a back cover, and FIG. 8 is a view illustrating a state in which a liquid crystal module is installed in the back cover.
도 5에 도시된 바와 같이, 몰드 프레임이 하나가 아니라 좌우 2개의 프레임(20,21)으로 분리된다. 플라스틱 재질의 각 프레임(20,21)에 도광판(2)의 양측면이 끼워져서 기본 골격을 이루게 된다. 반사판(4)이 도광판(2)의 하부에 배치되고, 확산판(5)과 프리즘 상하판(7,6)이 도광판(2)의 상부에 배치되어서, 각 판(4,5,6,7)이 각 프레임(20,21)에 고정된다. 또한, 보호판(8)도 프리즘 상판(7) 상부에 배치되어서, 각 프레임(20,21)에 고정된다.As shown in FIG. 5, the mold frame is separated into two frames 20 and 21 instead of one. Both sides of the light guide plate 2 are fitted to each of the frames 20 and 21 made of plastic to form a basic skeleton. The reflecting plate 4 is disposed under the light guide plate 2, and the diffuser plate 5 and the prism upper and lower plates 7 and 6 are disposed above the light guide plate 2, so that each plate 4, 5, 6, 7 is provided. ) Is fixed to each frame 20, 21. In addition, the protective plate 8 is also disposed above the prism upper plate 7 and fixed to the respective frames 20 and 21.
따라서, 분리된 2개의 프레임(20,21)은 백 라이트 유니트의 전체 두께에 합산되지 않는다. 다만, 각 판들이 밑에서 받쳐 지지를 받지 못하기 때문에, 백 라이트 유니트의 강도가 약화될 우려가 있지만, 금속은 매우 얇게 제작하는 것이 가능하므로, 반사판(4)의 하부에 매우 얇은 금속판(30)을 배치하여, 각 프레임(20,21)에 고정시키면, 강도는 충분히 보강된다.Thus, the two separate frames 20, 21 do not add up to the overall thickness of the backlight unit. However, since the plates are not supported by the bottom, the strength of the backlight unit may be weakened. However, since the metal may be made very thin, a very thin metal plate 30 may be formed under the reflecting plate 4. When arrange | positioned and fixed to each frame 20 and 21, intensity | strength is fully reinforced.
한편, 백 라이트 유니트의 경량화를 고려하지 않는다면, 종래보다 두꺼운 도광판 사용이 가능하다. 이렇게 두꺼운 도광판이 사용되면 광효율이 증대되므로, 동일 휘도 대비 소비 전력을 줄일 수가 있게 되는 부수적인 효과도 있다.On the other hand, if the weight of the backlight unit is not considered, it is possible to use a light guide plate thicker than the conventional one. When the thick light guide plate is used, the light efficiency is increased, and thus there is a side effect of reducing power consumption compared to the same brightness.
또한, 도 6에 도시된 바와 같이, 각 프레임(20,21)의 하단에 힌지핀(22,23)이 각각 설치된다. 각 힌지핀(22,23)은 액정 모듈(40)을 노브북 본체에 회전가능하게 연결시키기 위한 것으로서, 종래에는 전술된 바와 같이, 백 커버(11)에 부착된 브래킷에 설치되었으나, 본 발명에서는 프레임(20,21)에 직접 설치된다. 따라서, 도 7과 같이, 백 커버(11)에는 브래킷이 설치될 필요가 없어지게 되므로, 도 8과 같이 백 커버(11)에 액정 모듈(40)을 조립한 상태의 중량과 두께는 종래보다 가벼워지고 얇아지게 된다.In addition, as shown in FIG. 6, hinge pins 22 and 23 are installed at lower ends of the frames 20 and 21, respectively. Each of the hinge pins 22 and 23 is for rotatably connecting the liquid crystal module 40 to the knob book body. As described above, the hinge pins 22 and 23 are installed in the bracket attached to the back cover 11, but in the present invention, It is directly installed in the frames 20 and 21. Therefore, as shown in FIG. 7, since the bracket is not required to be installed on the back cover 11, the weight and thickness of the liquid crystal module 40 assembled to the back cover 11 as shown in FIG. 8 are lighter than before. And thinner.
한편, 도 9는 본 발명의 다른 실시예로서, 액정 모듈(50)에 베젤(bezel)이 없다. 베젤은 액정 모듈에서, 전체 구조의 상부에 설치되는 구조물인데, 도 9에서는 베젤을 삭제하고 대신에 백 커버를 베젤 대용으로 사용할 수도 있다는 것을 제시한 것이다.9 illustrates another embodiment of the present invention, in which the liquid crystal module 50 has no bezel. In the liquid crystal module, the bezel is a structure installed on the upper part of the entire structure. In FIG. 9, the bezel is removed and a back cover may be used instead of the bezel.
상기된 바와 같이 본 발명에 의하면, 몰드 프레임이 좌우 양측 2개의 프레임(20,21)으로 분리되어, 각각의 프레임(20,21) 사이에 도광판(2)이 끼워져서 기본 골격을 이룬 상태에서, 각종 광학판들이 설치되므로써, 몰드 프레임(20,21)이 백 라이트 유니트의 두께를 증가시키지 않게 된다. 따라서, 액정 모듈의 경량 및 박형화가 실현된다.As described above, according to the present invention, in a state in which the mold frame is separated into two frames 20 and 21 on both sides, and the light guide plate 2 is sandwiched between the frames 20 and 21 to form a basic skeleton, By installing various optical plates, the mold frames 20 and 21 do not increase the thickness of the backlight unit. Therefore, the weight and thickness of the liquid crystal module are realized.
또한, 각 몰드 프레임(20,21)에 힌지핀(22,23)이 일체로 설치되므로써, 백 커버(11)에 힌지핀을 설치하기 위한 브래킷이 필요없어지게 되어, 노트북과 같은 시스템의 경량 및 박형화가 실현된다.In addition, since the hinge pins 22 and 23 are integrally installed in each mold frame 20 and 21, the bracket for installing the hinge pins on the back cover 11 is no longer needed, thereby reducing the weight and weight of a system such as a notebook. Thinning is realized.
한편, 본 발명은 상술한 특정의 바람직한 실시예에 한정되지 아니하며, 청구범위에서 청구하는 본 발명의 요지를 벗어남이 없이 당해 발명이 속하는 분야에서 통상의 지식을 가진 자라면 누구든지 다양한 변경 실시가 가능할 것이다.On the other hand, the present invention is not limited to the above-described specific preferred embodiments, and various changes can be made by those skilled in the art without departing from the gist of the invention claimed in the claims. will be.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019980022944A KR100293812B1 (en) | 1998-06-18 | 1998-06-18 | Back light unit with detachable mold frame |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019980022944A KR100293812B1 (en) | 1998-06-18 | 1998-06-18 | Back light unit with detachable mold frame |
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| Publication Number | Publication Date |
|---|---|
| KR20000002272A KR20000002272A (en) | 2000-01-15 |
| KR100293812B1 true KR100293812B1 (en) | 2001-07-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019980022944A Expired - Lifetime KR100293812B1 (en) | 1998-06-18 | 1998-06-18 | Back light unit with detachable mold frame |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101115027B1 (en) * | 2005-12-09 | 2012-03-06 | 삼성전자주식회사 | Bottom chassis and liquid crystal display device including the same |
| US9389460B2 (en) | 2014-04-23 | 2016-07-12 | Samsung Display Co., Ltd. | Display device including supporting member having corner reflective surface |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100873067B1 (en) * | 2002-07-11 | 2008-12-11 | 삼성전자주식회사 | Back light assembly and liquid crystal display device having the same |
| KR102015363B1 (en) | 2013-07-24 | 2019-08-29 | 삼성디스플레이 주식회사 | Back light unit and display apparatus including the same |
| DE102014215697A1 (en) | 2014-08-07 | 2016-02-11 | Continental Teves Ag & Co. Ohg | Pneumatic brake booster |
-
1998
- 1998-06-18 KR KR1019980022944A patent/KR100293812B1/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101115027B1 (en) * | 2005-12-09 | 2012-03-06 | 삼성전자주식회사 | Bottom chassis and liquid crystal display device including the same |
| US9389460B2 (en) | 2014-04-23 | 2016-07-12 | Samsung Display Co., Ltd. | Display device including supporting member having corner reflective surface |
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| KR20000002272A (en) | 2000-01-15 |
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