KR20030067127A - Backlight unit for lcd device - Google Patents
Backlight unit for lcd device Download PDFInfo
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- KR20030067127A KR20030067127A KR1020020006983A KR20020006983A KR20030067127A KR 20030067127 A KR20030067127 A KR 20030067127A KR 1020020006983 A KR1020020006983 A KR 1020020006983A KR 20020006983 A KR20020006983 A KR 20020006983A KR 20030067127 A KR20030067127 A KR 20030067127A
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- external electrode
- lamp holder
- backlight unit
- eefl
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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
- G02F1/133602—Direct backlight
- G02F1/133604—Direct backlight with lamps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V19/00—Fastening of light sources or lamp holders
- F21V19/0075—Fastening of light sources or lamp holders of tubular light sources, e.g. ring-shaped fluorescent light sources
- F21V19/008—Fastening of light sources or lamp holders of tubular light sources, e.g. ring-shaped fluorescent light sources of straight tubular light sources, e.g. straight fluorescent tubes, soffit lamps
-
- 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
- G02F1/133602—Direct backlight
- G02F1/133612—Electrical details
-
- 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
- G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
- G02F2201/46—Fixing elements
- G02F2201/465—Snap -fit
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Planar Illumination Modules (AREA)
Abstract
Description
본 발명은 액정표시장치용 백라이트유니트에 관한 것으로, 보다 상세하게는, 광원으로서 외부전극램프(External Electrode Fluorescent Lamp)를 적용한 직하형 백라이트 유니트에서의 램프 전극과 램프 홀더간의 전기적 연결 구조에 것이다.The present invention relates to a backlight unit for a liquid crystal display device, and more particularly, to an electrical connection structure between a lamp electrode and a lamp holder in a direct backlight unit using an external electrode lamp as a light source.
액정표시장치는 박형화, 경량화, 저소비 전력 및 구동회로와의 정합성 등의 이유로 그 사용범위가 점차 확대되어 가고 있다. 이러한 액정표시장치는 별도 광원의 사용 유무에 따라 투과형과 반사형으로 구분되며, 통상적으로 사용되고 있는 투과형 액정표시장치는 광원으로서 형광램프를 갖는 백라이트 유니트를 구비한다.BACKGROUND OF THE INVENTION Liquid crystal display devices are increasingly being used because of their thinness, light weight, low power consumption, and compatibility with driving circuits. The liquid crystal display device is classified into a transmissive type and a reflective type according to whether a separate light source is used, and a commonly used transmissive liquid crystal display device includes a backlight unit having a fluorescent lamp as a light source.
상기 백라이트 유니트는 광원인 형광램프와, 상기 램프를 둘러싸는 램프 반사체와, 상기 램프의 측부 또는 상부에 배치되는 도광판과, 상기 도광판의 하부면 및 상부면 각각에 배치되는 반사판 및 확산판과, 상기 확산판 상에 차례로 배치되는 한 쌍의 프리즘 필름 및 보호막으로 구성되며, 그 조명 방식에 따라, 즉, 램프의 위치에 따라 에지형과 직하형으로 구분된다.The backlight unit includes a fluorescent lamp as a light source, a lamp reflector surrounding the lamp, a light guide plate disposed on the side or top of the lamp, a reflector plate and a diffuser plate disposed on each of the lower and upper surfaces of the light guide plate, It consists of a pair of prism films and a protective film which are arrange | positioned in order on a diffuser plate, and are divided into an edge type and a direct type according to the illumination system, ie, the position of a lamp.
상기 에지형은 하나 또는 한 쌍의 램프가 도광판의 일측부, 혹은, 두 개 또는 두 쌍의 램프가 도광판의 양측부 각각에 배치된 구조를, 그리고, 상기 직하형은 수 개의 램프가 도광판의 하부에 배치된 구조를 지칭하는 것으로, 상기 에지형은 제작이 용이한 잇점을 갖는 반면, 상기 직하형은 빛의 균일도가 높은 것과 관련하여 대형 액정표시장치에 상대적으로 유리한 잇점을 갖는다.The edge type has a structure in which one or a pair of lamps are disposed on one side of the light guide plate, or two or two pairs of lamps are disposed on each side of the light guide plate, and the direct type has several lamps at the bottom of the light guide plate The edge type has an advantage of being easy to manufacture, while the direct type has a relatively advantageous advantage for a large liquid crystal display in terms of high uniformity of light.
한편, 상기 백라이트 유니트에서 광원으로 사용되는 형광램프로서는 현재 냉음극관형광램프(Cold Cathod Fluorescent Lamp : 이하, CCFL)가 주로 사용되고 있다. 그런데, 상기 CCFL은 에지형 백라이트 유니트에의 적용은 용이하지만, 직하형 백라이트 유니트에의 적용은 쉽지 않다. 이것은 상기 CCFL이 램프 전극과 램프 전선간을 솔더링한 후에 그 조인트부를 실리콘 러버(silicon rubber)로 감싸주는 방식을 채택하고 있는 바, 수 개의 램프를 구비하는 직하형 백라이트 유니트에의 적용시에는 각 램프에 대한 솔더링과 실리콘 러버에 의해 보호를 개별적으로 행하는 것이 많은 공정 시간을 필요로 함은 물론, 일체형의 램프 홀더가 적용됨에 따라 개별적인 조인트부의 보호가 실질적으로 곤란하기 때문이다.Meanwhile, as a fluorescent lamp used as a light source in the backlight unit, a cold cathode fluorescent lamp (CCFL) is mainly used. By the way, the CCFL is easy to apply to the edge type backlight unit, it is not easy to apply to the direct type backlight unit. The CCFL adopts a method in which the joint part is covered with silicon rubber after soldering between the lamp electrode and the lamp wire, and each lamp is applied to a direct type backlight unit having several lamps. Not only does the protection by soldering and silicon rubber separately require a lot of processing time, but also the protection of the individual joints is practically difficult as an integrated lamp holder is applied.
따라서, 상기 CCFL을 적용한 백라이트 유니트는 대부분 에지형으로 제작되고 있으며, 아울러, 직하형 백라이트 유니트에의 적용이 용이한 램프 개발이 이루어져, 최근, 외부전극형광램프(External Electrode Fluorescent Lamp : 이하, EEFL)가 제안되었다.Therefore, the backlight unit to which the CCFL is applied is mostly manufactured in an edge type, and a lamp which is easily applied to a direct type backlight unit has been developed. In recent years, an external electrode fluorescent lamp (EEFL) has been developed. Was proposed.
상기 EEFL은 유리관의 양측단으로 전극이 돌출되는 CCFL 구조와는 달리 유리관의 양측단 표면이 도전성의 전극으로된 구조이며, 그 전기적 접속 방식으로서는 납에 의한 솔더링 방식과 가정용 형광등과 같이 억지 끼워 맞춤 방식을 이용하고 있고, 이 중에서도 모듈에 적용되는 램프는 구조적 취약성 및 공간적인 제약을 갖는 것과 관련하여 전자의 방식을 주로 이용하고 있다.Unlike the CCFL structure in which the electrode protrudes to both ends of the glass tube, the EEFL has a structure in which both surfaces of the glass tube are conductive electrodes, and as an electrical connection method, a soldering method using lead and an interference fitting method such as household fluorescent lamps Among them, the lamp applied to the module mainly uses the former method with respect to structural weakness and spatial constraints.
도 1은 종래 기술에 따라 램프 홀더에 수 개의 EEFL을 배치시킨 구조를 도시한 도면으로서, 도시된 바와 같이, 수 개의 EEFL(1)이 그의 외부전극(2)이 램프 홀더(3)의 홈에 끼워지도록 배치되고, 상기 램프 전극(2)이 솔더링되는 것에 의해 상기 램프 홀더(3)와 전기적으로 연결된다. 도면부호 4는 솔더링된 부분을 나타낸다.FIG. 1 is a view showing a structure in which several EEFLs are arranged in a lamp holder according to the prior art, and as shown, several EEFLs 1 have their external electrodes 2 inserted into grooves of the lamp holder 3. It is arranged to fit and is electrically connected with the lamp holder 3 by soldering the lamp electrode 2. Reference numeral 4 denotes a soldered portion.
그러나, 전술한 바와 같이, 솔더링 방식으로 EEFL의 램프 전극과 램프 홀더간의 전기적 접속을 행할 경우, 상기 솔더링싱의 램프 파손이 발생될 확률이 높으며, 특히, 환경 측면에서의 납 사용 규제에 되고 있는 실정에서 상기 납에 의한 솔더링의 전기적 접속 방식은 그 이용에 제약이 있는 문제점이 있다.However, as described above, when the electrical connection between the lamp electrode of the EEFL and the lamp holder is made by soldering, there is a high probability that the lamp breakage of the soldering is generated, and in particular, the use of lead in the environment is regulated. In the electrical connection method of the soldering by the lead there is a problem in that there is a limitation.
따라서, 본 발명은 상기와 같은 문제점을 해결하기 위해 안출된 것으로, 광원으로 EEFL을 적용함에 있어서 솔더링을 행하지 않고도 램프 전극과 램프 홀더간의 전기적 연결을 달성할 수 있는 액정표시장치용 백라이트 유니트를 제공함에 그 목적이 있다.Accordingly, the present invention has been made to solve the above problems, to provide a backlight unit for a liquid crystal display device that can achieve an electrical connection between the lamp electrode and the lamp holder without soldering in applying the EEFL as a light source. The purpose is.
도 1은 종래 기술에 따른 액정표시장치용 백라이트 유니트에서의 외부전극형광램프와 램프 홀더간의 전기적 접속을 설명하기 위한 도면.1 is a view for explaining the electrical connection between the external electrode fluorescent lamp and the lamp holder in the backlight unit for a liquid crystal display according to the prior art.
도 2는 본 발명에 따른 액정표시장치용 백라이트 유니트에서의 외부전극형광램프와 램프 홀더간의 전기적 접속을 설명하기 위한 도면.2 is a view for explaining the electrical connection between the external electrode fluorescent lamp and the lamp holder in the backlight unit for a liquid crystal display device according to the present invention.
* 도면의 주요부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings
11 : 외부전극형광램프 12 : 외부전극11: external electrode fluorescent lamp 12: external electrode
13 : 램프 홀더 14 : 스프링13: lamp holder 14: spring
상기와 같은 목적을 달성하기 위한 본 발명의 액정표시장치용 백라이트 유니트는, 한 쌍의 램프 홀더를 이용하여 수 개의 외부전극형광램프(EEFL)에 대한 그라운드 연결을 이룬 구조의 광원을 도광판의 하부에 배치시켜 구성한 액정표시장치용 직하형 백라이트 유니트에 있어서, 상기 램프의 외부전극과 램프 홀더간의 전기적 접속은 코일 스프링(Coil Spring)이 삽입된 도전성 램프 홀더에 상기 램프를 억지 끼워 맞춤 방식으로 끼우는 것에 의해 이루어진 것을 특징으로 한다.In order to achieve the above object, a backlight unit for a liquid crystal display according to the present invention uses a pair of lamp holders to provide a light source having a ground connection structure to several external electrode fluorescent lamps (EEFL) under the light guide plate. In a direct backlight unit for a liquid crystal display device arranged and arranged, the electrical connection between the external electrode of the lamp and the lamp holder is made by forcibly fitting the lamp to a conductive lamp holder into which a coil spring is inserted. Characterized in that made.
본 발명에 따르면, 솔더링이 아닌 기계적인 억지 끼워 맞춤 방식으로 램프와 홀더간의 전기적 접속을 이루기 때문에 램프 파손 및 환경오염 문제를 방지할 수 있으며, 특히, 램프와 홀더간의 전기적 접속 신뢰성을 높일 수 있다.According to the present invention, since the electrical connection between the lamp and the holder is made by a mechanical interference fitting method rather than soldering, it is possible to prevent the lamp breakage and environmental pollution problems, in particular, it is possible to increase the electrical connection reliability between the lamp and the holder.
(실시예)(Example)
이하, 첨부된 도면을 참조하여 본 발명의 바람직한 실시에를 상세하게 설명하도록 한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.
우선, 광원으로서 EEFL을 적용한 직하형 백라이트 유니트는 한 쌍의 램프 홀더를 이용하여 수 개의 EEFL에 대한 그라운드 연결을 이룬 광원을 도광판의 하부에 배치시킨 구조이다.First, the direct type backlight unit using the EEFL as a light source has a structure in which a light source having a ground connection for several EEFLs is arranged under the light guide plate by using a pair of lamp holders.
여기서, 상기 EEFL의 외부전극과 램프 홀더간의 전기적 접속을 위해, 본 발명은 종래의 솔더링 방식 대신에, 억지 끼워 맞춤(interference fit) 방식을 이용하면서 스프링의 탄성력을 이용한다.Here, for the electrical connection between the external electrode of the EEFL and the lamp holder, the present invention uses the spring force while using an interference fit method, instead of the conventional soldering method.
자세하게, 도 2는 본 발명에 따른 광원으로서 EEFL을 적용한 직하형 백라이트 유니트에서의 EEFL과 램프 홀더간의 전기적 연결 구조를 설명하기 위한 도면으로서, 도시된 바와 같이, 상기 EEFL(11)의 외부전극(12)과 램프 홀더(13)간의 전기적 접속은 상기 EEFL(11)의 외부전극(12)을 상기 외부전극(12)이 끼워지는 램프 홀더부에 코일 스프링(Coil Spring : 14)이 삽입(insert)시킨 상태로 억지 끼워 맞춤 방식으로 끼우는 것에 의해 이루어진다.In detail, FIG. 2 is a view for explaining the electrical connection structure between the EEFL and the lamp holder in the direct type backlight unit to which the EEFL is applied as the light source according to the present invention. As illustrated, the external electrode 12 of the EEFL 11 is shown. And the electrical connection between the lamp holder 13 and the coil electrode 14 by inserting the external electrode 12 of the EEFL 11 into the lamp holder in which the external electrode 12 is fitted. It is made by fitting in a forced fit state.
즉, 본 발명은 실리콘 재질로된 도전성의 램프 홀더(13)를 마련함에 있어서, 자세하게 도시하지는 않았으나, 종래와 마찬가지로 몰드 내에 램프 홀더(13)가 삽입 고정된 형태로 마련하며, 특히, EEFL의 외부전극(12)이 끼워지는 램프 홀더부에는 탄성력을 갖는 도전성의 코일 스프링(14)을 추가 삽입시킨다.That is, the present invention, although not shown in detail in providing a conductive lamp holder 13 made of a silicon material, it is provided in the form of the lamp holder 13 is inserted and fixed in the mold as in the prior art, in particular, the outside of the EEFL An electrically conductive coil spring 14 having an elastic force is further inserted into the lamp holder portion into which the electrode 12 is fitted.
이렇게 하면, 램프 홀더부(13)에 억지 끼워 맞춤 방식으로 고정된 EEFL(11)이 동작될 때, 열이 발생되어 EEFL의 외부전극(12)과 램프 홀더(13)간의 접촉 저항이 떨어지더라도, 이와는 반대로 상기 코일 스프링(14)에 의한 팽창력(tension)이 발생되므로, 상기 EEFL의 외부전극(12)과 램프 홀더(13)간의 실제적인 접촉 저항의 저하는 야기되지 않는다.In this case, even when heat is generated when the EEFL 11 fixed to the lamp holder part 13 by the interference fitting method is operated, even if the contact resistance between the external electrode 12 of the EEFL and the lamp holder 13 falls, On the contrary, since the tension by the coil spring 14 is generated, the actual contact resistance between the external electrode 12 of the EEFL and the lamp holder 13 is not caused.
따라서, 본 발명은 솔더링이 아닌 기계적인 억지 끼워 맞춤 방식을 이용하면서도, 단지, EEFL의 외부전극이 끼워지는 램프 홀더 부분에 탄성력을 갖는 코일 스프링을 추가 설치한 것만으로 EEFL의 외부전극과 램프 홀더간의 전기적 접속 및 열적 신뢰성을 확보할 수 있으며, 그러므로, 솔더링 방식을 이용할 경우에서의 램프파손 문제 및 납 사용에 기인하는 환경 문제는 해결할 수 있다.Therefore, the present invention uses a mechanical interference fitting method, not soldering, but only between the external electrode and the lamp holder of the EEFL by simply installing a coil spring having an elastic force in the lamp holder portion to which the external electrode of the EEFL is fitted. Electrical connection and thermal reliability can be ensured, and therefore, the problem of lamp breakage and environmental problems due to the use of lead when soldering is used can be solved.
이상에서와 같이, 본 발명은 솔더링이 아닌 기계적인 억지끼워맞춤 방식으로 램프 전극과 램프 홀더간의 전기적 접속을 이루기 때문에, 솔더링시의 램프 파손 발생 및 납 사용에 의한 환경오염 문제를 방지할 수 있다.As described above, since the present invention forms an electrical connection between the lamp electrode and the lamp holder in a mechanical interference fitting manner, not soldering, it is possible to prevent the problem of lamp damage during soldering and environmental pollution by the use of lead.
또한, 본 발명은 램프 전극이 끼워지는 램프 홀더부에 도전성의 코일 스프링을 배치시키기 때문에, 램프 열에 의해 램프 홀더의 팽창이 일어나서 램프 전극과 램프 홀더간의 전기적 접촉저항이 저하되는 것을 방지할 수 있으며, 따라서, 램프와 램프 홀더간의 전기적 접속 신뢰성을 향상시킬 수 있다.In addition, since the conductive coil spring is disposed in the lamp holder portion to which the lamp electrode is fitted, expansion of the lamp holder occurs due to the heat of the lamp, and the electrical contact resistance between the lamp electrode and the lamp holder can be prevented from being lowered. Therefore, the electrical connection reliability between the lamp and the lamp holder can be improved.
기타, 본 발명의 요지를 벗어나지 않는 범위내에서 다양하게 변경하여 실시할 수 있다.In addition, it can implement in various changes within the range which does not deviate from the summary of this invention.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020020006983A KR20030067127A (en) | 2002-02-07 | 2002-02-07 | Backlight unit for lcd device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020020006983A KR20030067127A (en) | 2002-02-07 | 2002-02-07 | Backlight unit for lcd device |
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| Publication Number | Publication Date |
|---|---|
| KR20030067127A true KR20030067127A (en) | 2003-08-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020020006983A KR20030067127A (en) | 2002-02-07 | 2002-02-07 | Backlight unit for lcd device |
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| Country | Link |
|---|---|
| KR (1) | KR20030067127A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7259507B2 (en) * | 2003-06-19 | 2007-08-21 | Harison Toshiba Lighting Corporation | Low pressure discharge lamp having external electrodes provided with heat equalizing members |
| US7564189B2 (en) * | 2004-10-13 | 2009-07-21 | Panasonic Corporation | Fluorescent lamp, backlight unit, and liquid crystal television for suppressing corona discharge |
| EP2161975A3 (en) * | 2008-09-03 | 2010-04-14 | Hosiden Corporation | Connection structure of circuit board and connecting device |
| EP2048751A3 (en) * | 2007-10-12 | 2010-11-03 | Hosiden Corporation | Buffer, adapter, and connecting device for attaching the same buffer or adapter |
| KR101236241B1 (en) * | 2006-06-30 | 2013-02-22 | 엘지디스플레이 주식회사 | backlight unit for liquid crystal display device and liquid crystal display device module with the same |
-
2002
- 2002-02-07 KR KR1020020006983A patent/KR20030067127A/en not_active Application Discontinuation
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7259507B2 (en) * | 2003-06-19 | 2007-08-21 | Harison Toshiba Lighting Corporation | Low pressure discharge lamp having external electrodes provided with heat equalizing members |
| US7564189B2 (en) * | 2004-10-13 | 2009-07-21 | Panasonic Corporation | Fluorescent lamp, backlight unit, and liquid crystal television for suppressing corona discharge |
| KR101236241B1 (en) * | 2006-06-30 | 2013-02-22 | 엘지디스플레이 주식회사 | backlight unit for liquid crystal display device and liquid crystal display device module with the same |
| EP2048751A3 (en) * | 2007-10-12 | 2010-11-03 | Hosiden Corporation | Buffer, adapter, and connecting device for attaching the same buffer or adapter |
| US7976314B2 (en) | 2007-10-12 | 2011-07-12 | Hosiden Corporation | Buffer, adapter, and connecting device for attaching the same buffer or adapter |
| EP2161975A3 (en) * | 2008-09-03 | 2010-04-14 | Hosiden Corporation | Connection structure of circuit board and connecting device |
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