KR100532870B1 - Backlight assembly - Google Patents
Backlight assembly Download PDFInfo
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- KR100532870B1 KR100532870B1 KR1019980030522A KR19980030522A KR100532870B1 KR 100532870 B1 KR100532870 B1 KR 100532870B1 KR 1019980030522 A KR1019980030522 A KR 1019980030522A KR 19980030522 A KR19980030522 A KR 19980030522A KR 100532870 B1 KR100532870 B1 KR 100532870B1
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- South Korea
- Prior art keywords
- lamp
- lamp cover
- insulating film
- cover
- assembly
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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
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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
- G02B6/0013—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
- G02B6/009—Positioning aspects of the light source 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
- G02F1/1345—Conductors connecting electrodes to cell terminals
-
- 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
- G02F1/133314—Back frames
Abstract
램프 커버가 절곡되지 않은 상태에서 접착제를 이용하여 램프 커버의 외측면에 절연성 시트를 부착하여 절연막을 형성한 후에 램프를 감싸도록 램프 커버를 절곡함으로써, 수작업이 삭제되고 조립시간이 단축되며 작업산포의 줄임으로 램프 커버와 바텀샤시의 접촉에 의한 누전을 최소화하여 생산성 및 액정표시장치의 신뢰성을 향상시킬 수 있다When the lamp cover is not bent, an insulating sheet is attached to the outer surface of the lamp cover using an adhesive to form an insulating film, and then the lamp cover is bent to surround the lamp, thereby eliminating manual work and shortening assembly time. By reducing the leakage caused by the contact of the lamp cover and the bottom chassis, it is possible to improve the productivity and reliability of the liquid crystal display device.
Description
본 발명은 백라이트 어셈블리에 관한 것으로, 더욱 상세하게는 램프 커버와 바텀샤시를 절연하기 위해 램프커버의 외측면을 절연막으로 감싸 작업성을 용이하게 한 백라이트 어셈블리에 관한 것이다.The present invention relates to a backlight assembly, and more particularly, to a backlight assembly that facilitates workability by wrapping an outer surface of the lamp cover with an insulating film to insulate the lamp cover and the bottom chassis.
일반적으로, 정보화 사회에서 LCD(Liquid Crystal Display)의 개발은 눈부시게 발전하고 있으며 그 역할도 중요화되고 있다. LCD는 자체 발광을 하지 못하고 외부에서 들어오는 광의 양을 조절하여 화면에 표시하는 수광소자이기 때문에 LCD 패널에 광을 조사해 주기 위해서는 별도의 광원, 즉, 백라이트 장치가 사용된다. 이러한, 백라이트 장치는 크게 몰드프레임(mold frame)과 몰드프레임의 일측면에 고정되는 램프 어셈블리(lamp assembly)와 램프구조물의 일측에 삽입되는 도광판 및 시트류와, 램프 어셈블리와 대응되는 몰드프레임의 하부에 고정되는 바텀샤시로 구성된다.In general, the development of liquid crystal displays (LCDs) in the information society has developed remarkably, and its role is becoming important. Since the LCD does not emit light by itself and adjusts the amount of light coming from the outside to display on the screen, a separate light source, that is, a backlight device, is used to irradiate the LCD panel with light. The backlight device includes a lamp assembly fixed to a mold frame and one side of the mold frame, a light guide plate and sheets inserted into one side of the lamp structure, and a lower part of the mold frame corresponding to the lamp assembly. It consists of a bottom chassis that is fixed to it.
여기서, 램프 어셈블리(10)는 도 1에 도시된 바와 같이 빛을 발산하는 램프(12)와, 램프(12)의 외주면을 감싸며 일측면이 개구된 도전성 재질의 램프 커버(14))로 구성되는데, 램프(12)의 양단에 형성된 입·출력 전극(도시 안됨)에는 전원을 공급하는 입·출력측 와이어(16, 18)의 일단이 연결된다. 여기서, 출력 전극에 연결되는 출력측 와이어(18)의 타단은 램프 커버(14)와 연결되어 램프 커버(14)가 출력측 와이어(18)의 역할을 한다.Here, the lamp assembly 10 is composed of a lamp 12 for emitting light as shown in FIG. 1, and a lamp cover 14 made of a conductive material, one side of which surrounds an outer circumferential surface of the lamp 12 and is opened. One end of the input / output side wires 16 and 18 for supplying power is connected to an input / output electrode (not shown) formed at both ends of the lamp 12. Here, the other end of the output wire 18 connected to the output electrode is connected to the lamp cover 14 so that the lamp cover 14 serves as the output wire 18.
이와 같이 출력측 와이어(18)가 램프 커버(14)와 연결된 경우 도전성 재질인 바텀샤시(도시 안됨)와 전기적으로 절연시키기 위해 램프 커버(14)와 바텀샤시 사이에 절연재질을 부착한다.As such, when the output side wire 18 is connected to the lamp cover 14, an insulating material is attached between the lamp cover 14 and the bottom chassis to electrically insulate the bottom chassis (not shown), which is a conductive material.
그러나, 앞에서 설명한 바와 같이 램프 커버와 바텀샤시 사이에 절연성 재질을 부착하는 공정은 수작업으로 진행되어 램프 어셈블리의 조립시간이 증가되어 생산성이 저하되는 문제점이 있다.However, as described above, the process of attaching the insulating material between the lamp cover and the bottom chassis is a manual process, which increases the assembly time of the lamp assembly, thereby lowering productivity.
또한, 작업산포로 인해 램프 커버와 바텀샤시의 접속에 의한 누전이 발생되어 LCD 모듈의 수율이 저하되는 문제점이 있다.In addition, there is a problem in that the leakage of the LCD module is caused by the connection of the lamp cover and the bottom chassis due to the distribution of the work is reduced.
따라서, 본 발명의 목적은 상기와 같은 문제점을 감안하여 안출된 것으로써, 절연성 재질을 부착하는 수작업 공정을 제거하여 조립시간을 절감하여 작업산포를 줄여 램프 커버와 바텀샤시의 접속에 의한 누전을 방지하여 액정표시장치의 생산성 및 신뢰성을 향상시키는데 있다.Therefore, the object of the present invention is devised in view of the above problems, eliminating the manual process of attaching the insulating material to reduce the assembly time to prevent the short circuit by connecting the lamp cover and the bottom chassis to prevent work leakage In order to improve the productivity and reliability of the liquid crystal display device.
본 발명의 다른 목적은 다음의 상세한 설명과 첨부된 도면으로부터 보다 명확해 질 것이다.Other objects of the present invention will become more apparent from the following detailed description and the accompanying drawings.
이와 같은 목적을 달성하기 위해 본 발명은 램프 커버가 절곡되지 않은 상태에서 접착제를 이용하여 램프 커버의 외측면에 절연성 재질의 막을 부착한 후 램프를 감싸도록 램프 커버를 절곡한다.In order to achieve the above object, the present invention bends the lamp cover to surround the lamp after attaching an insulating film to the outer surface of the lamp cover using an adhesive in a state where the lamp cover is not bent.
이하, 본 발명에 의한 액정표시장치의 백라이트 어셈블리를 첨부된 도면 도 2를 참조하여 설명하면 다음과 같다.Hereinafter, a backlight assembly of a liquid crystal display according to the present invention will be described with reference to FIG. 2.
도 2에 도시된 바와 같이 백라이트 어셈블리(100)는 수납홈이 형성된 몰드프레임(120)과, 몰드프레임(120)의 일측에 삽입되어 빛을 발산하는 램프 어셈블리(110)와, 램프 어셈블리(110)의 일측에 삽입되어 램프 어셈블리(110)에서 입사된 빛의 양을 제어하여 상부방향으로 안내하는 도광판(130)과, 도광판(130)의 하부면에 설치되어 도광판(130) 하부에서 새어나온 빛을 반사시켜 주는 반사판(140)과, 도광판(130) 상부면에 설치되어 도광판(130)에서 입사된 빛을 확산하고 집광하는 시트류들(150)과, 몰드프레임(120)에 삽입된 각 부재들을 지지하기 위해 몰드프레임(120)의 하부면에 설치된 바텀샤시(160)로 구성된다.As shown in FIG. 2, the backlight assembly 100 includes a mold frame 120 having a receiving groove, a lamp assembly 110 inserted into one side of the mold frame 120 to emit light, and a lamp assembly 110. The light guide plate 130 is inserted into one side of the light guide plate 130 to control the amount of light incident from the lamp assembly 110 and guides upward, and the light leaks from the bottom of the light guide plate 130. Reflecting plate 140 for reflecting, the sheet 150 installed on the upper surface of the light guide plate 130 to diffuse and collect the light incident from the light guide plate 130, and each member inserted into the mold frame 120 It consists of a bottom chassis 160 installed on the lower surface of the mold frame 120 to support.
여기서, 램프 어셈블리(110)는 빛을 발산하는 램프(112)와, 램프(112)의 외부면을 감싸고 일측면에 도광판(130)이 끼워져 램프(112)에서 발산된 빛을 도광판(130)쪽으로 반사하는 도전성 재질의 램프 커버(114)와, 램프(112)의 일단에 형성된 입력측 전극(도시 안됨)과 납땜에 의해 전기적으로 연결되는 입력측 와이어(도시 안됨)와, 램프(112)의 타단에 형성된 출력측 전극(도시 안됨)과 일단이 연결되고, 타단이 램프커버(114)에 연결되는 출력측 와이어(도시 안됨)로 구성된다.Here, the lamp assembly 110 surrounds the lamp 112 emitting light and the outer surface of the lamp 112, and the light guide plate 130 is fitted to one side of the lamp 112, so that the light emitted from the lamp 112 is directed toward the light guide plate 130. A lamp cover 114 of a conductive material reflecting, an input electrode (not shown) formed at one end of the lamp 112 and an input side wire (not shown) electrically connected by soldering, and formed at the other end of the lamp 112. The output side electrode (not shown) and one end is connected, the other end is composed of an output side wire (not shown) connected to the lamp cover 114.
여기서, 출력측 와이어와 납땜에 의해서 전기적으로 연결된 램프 커버(114)의 외측 표면에는 접착제(113)를 개재하여 절연막(115)이 부착되어 램프 커버(114)에 흐르는 전류가 바텀샤시(160)로 누설되는 것을 방지한다.Here, an insulating film 115 is attached to the outer surface of the lamp cover 114 electrically connected to the output side wire by soldering, and the current flowing through the lamp cover 114 leaks to the bottom chassis 160 through the adhesive 113. Prevent it.
램프 커버(114)에 절연막(115)을 부착하는 방법은 도 3a에 도시된 바와 같이 평평한 램프 커버(114)의 상부면에 접착제(113)를 부착하고, 접착제(113)의 상부면에 절연성 시트를 부착하여 절연막(115)을 형성한 후에 도 3b에 도시된 바와 같이 프레스를 이용하여 램프(112)와 대응되는 형상으로 램프 커버(114)를 굴곡시킨다.A method of attaching the insulating film 115 to the lamp cover 114 is to attach the adhesive 113 to the upper surface of the flat lamp cover 114, as shown in Figure 3a, the insulating sheet on the upper surface of the adhesive 113 After forming the insulating film 115 by attaching to the bent by using a press as shown in Figure 3b the lamp cover 114 in a shape corresponding to the lamp 112.
바람직하게는 램프 커버(114) 대신 램프 커버(114)가 접촉되는 바텀샤시(160)에 절연성 시트를 부착한 후 바텀샤시(160)를 성형하여 절연막(115)을 형성하여도 무방하다.Preferably, the insulating sheet 115 may be formed by attaching an insulating sheet to the bottom chassis 160 in contact with the lamp cover 114 instead of the lamp cover 114 and then forming the bottom chassis 160.
이와 같이, 평평한 램프 커버(114)에 절연막(115)을 형성한 후 프레스 가공하면, 종래에서와 같이 작업자가 직접 램프 커버(14)와 바텀샤시가 접하는 부분에 절연재를 부착하는 공정을 제거할 수 있어 작업시간이 단축된다.As such, when the insulating film 115 is formed on the flat lamp cover 114 and press processed, the worker can directly remove the step of attaching the insulating material to the portion where the lamp cover 14 and the bottom chassis come into contact with each other. The work time is shortened.
또한, 작업산포를 줄일 수 있고 램프 커버(114)의 표면 전체에 절연막(115)을 형성하여 램프 커버(114)와 바텀샤시(160)의 접촉으로 누전되는 것이 방지된다.In addition, the work spread can be reduced and the insulating film 115 is formed on the entire surface of the lamp cover 114 to prevent the short-circuit from contacting the lamp cover 114 and the bottom chassis 160.
이상에서 설명한 바와 같이 램프 커버가 절곡되지 않은 상태에서 접착제를 이용하여 램프 커버의 외측면에 절연성 시트를 부착하여 절연막을 형성한 후에 램프를 감싸도록 램프 커버를 절곡함으로써, 수작업이 삭제되고 조립시간이 단축되며 작업산포의 줄임으로 램프 커버와 바텀샤시의 접촉에 의한 누전을 최소화하여 생산성 및 액정표시장치의 신뢰성을 향상시킬 수 있는 효과가 있다.As described above, by attaching an insulating sheet to the outer surface of the lamp cover using an adhesive to form an insulating film while the lamp cover is not bent, the lamp cover is bent to surround the lamp, thereby eliminating manual work and assembling time. By shortening the work spread and minimizing the leakage caused by the contact of the lamp cover and the bottom chassis, the productivity and the reliability of the liquid crystal display device can be improved.
도 1은 종래의 램프 어셈블리 구조를 나타낸 단면도이고,1 is a cross-sectional view showing a conventional lamp assembly structure,
도 2는 본 발명에 의한 백라이트 어셈블리의 구조를 나타낸 단면도이며,2 is a cross-sectional view showing the structure of a backlight assembly according to the present invention;
도 3a 및 도 3b는 램프 커버에 절연막을 부착하여 램프 커버를 굴곡하는 과정을 나타낸 상태도이다,3A and 3B are diagrams illustrating a process of bending a lamp cover by attaching an insulating film to the lamp cover.
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Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019980030522A KR100532870B1 (en) | 1998-07-29 | 1998-07-29 | Backlight assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019980030522A KR100532870B1 (en) | 1998-07-29 | 1998-07-29 | Backlight assembly |
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| Publication Number | Publication Date |
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| KR20000009869A KR20000009869A (en) | 2000-02-15 |
| KR100532870B1 true KR100532870B1 (en) | 2006-02-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| KR1019980030522A KR100532870B1 (en) | 1998-07-29 | 1998-07-29 | Backlight assembly |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR100429315B1 (en) * | 2002-04-12 | 2004-04-29 | 주식회사 인지디스플레이 | A manufacturing process of lamp reflector for LCD |
| KR101031672B1 (en) * | 2003-09-19 | 2011-04-29 | 엘지디스플레이 주식회사 | Back light of a liquid crystal display device for preventing seperation of a optical sheet |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07249312A (en) * | 1994-03-11 | 1995-09-26 | Stanley Electric Co Ltd | Back light device |
| KR970071068A (en) * | 1996-04-12 | 1997-11-07 | 김광호 | Backlight device for liquid crystal display |
| JPH10161554A (en) * | 1996-11-29 | 1998-06-19 | Toshiba Lighting & Technol Corp | Lighting device, back light and liquid crystal display device |
| JPH10246814A (en) * | 1997-03-06 | 1998-09-14 | Sanyo Electric Co Ltd | Back light device |
-
1998
- 1998-07-29 KR KR1019980030522A patent/KR100532870B1/en not_active IP Right Cessation
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07249312A (en) * | 1994-03-11 | 1995-09-26 | Stanley Electric Co Ltd | Back light device |
| KR970071068A (en) * | 1996-04-12 | 1997-11-07 | 김광호 | Backlight device for liquid crystal display |
| JPH10161554A (en) * | 1996-11-29 | 1998-06-19 | Toshiba Lighting & Technol Corp | Lighting device, back light and liquid crystal display device |
| JPH10246814A (en) * | 1997-03-06 | 1998-09-14 | Sanyo Electric Co Ltd | Back light device |
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