KR20030058513A - backlight unit for liquid crystal display device - Google Patents

backlight unit for liquid crystal display device Download PDF

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Publication number
KR20030058513A
KR20030058513A KR1020010088969A KR20010088969A KR20030058513A KR 20030058513 A KR20030058513 A KR 20030058513A KR 1020010088969 A KR1020010088969 A KR 1020010088969A KR 20010088969 A KR20010088969 A KR 20010088969A KR 20030058513 A KR20030058513 A KR 20030058513A
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South Korea
Prior art keywords
lamp
light
liquid crystal
wire
crystal display
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KR1020010088969A
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Korean (ko)
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KR100807888B1 (en
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박홍록
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비오이 하이디스 테크놀로지 주식회사
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Priority to KR1020010088969A priority Critical patent/KR100807888B1/en
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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
    • 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
    • G02F1/133524—Light-guides, e.g. fibre-optic bundles, louvered or jalousie light-guides
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J5/00—Details relating to vessels or to leading-in conductors common to two or more basic types of discharge tubes or lamps
    • H01J5/50—Means forming part of the tube or lamps for the purpose of providing electrical connection to it
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R33/00—Coupling devices specially adapted for supporting apparatus and having one part acting as a holder providing support and electrical connection via a counterpart which is structurally associated with the apparatus, e.g. lamp holders; Separate parts thereof
    • H01R33/05—Two-pole devices
    • H01R33/06—Two-pole devices with two current-carrying pins, blades or analogous contacts, having their axes parallel to each other
    • H01R33/08—Two-pole devices with two current-carrying pins, blades or analogous contacts, having their axes parallel to each other for supporting tubular fluorescent lamp

Abstract

PURPOSE: A back light unit of a liquid crystal display is provided to apply light emitted from a lamp to a light incident plane of a light guide plate, thereby reducing dark parts appearing on a screen. CONSTITUTION: A lamp(201) is connected with a lamp electrode(202) in a lamp glass(200), and is formed of a lamp lead(208). A wire(212) is soldered with the lamp lead. A lamp holder(230) is inserted into to be laid across a part of the lamp and the wire, and exposes a light incident plane of a light guide plate(220). The lamp holder is formed of a transparent material to transmit light(222) emitted from the lamp.

Description

액정표시장치의 백라이트 유닛{backlight unit for liquid crystal display device}Backlight unit for liquid crystal display device

본 발명은 액정표시장치에 관한 것으로, 보다 상세하게는 액정표시장치의 백라이트(back light)에서 램프와 와이어 솔더링 부분을 보호하는 램프 홀더에 있어서, 램프의 양끝단에 암부 발생을 방지할 수 있는 액정표시장치의 백라이트 유닛에 관한 것이다.The present invention relates to a liquid crystal display device, and more particularly, in a lamp holder that protects a lamp and a wire soldering portion from a back light of the liquid crystal display device, a liquid crystal capable of preventing dark portions at both ends of the lamp. A backlight unit of a display device.

일반적으로 사용되고 있는 투과형 액정표시장치는 자체 발광을 하지 못하므로 액정 화면의 배면에 백라이트가 필요하며, 액정표시장치의 성능은 그 자체 뿐만 아니라 사용하는 백라이트의 성능에 의존하는 바가 크다. 현재, 백라이트 유니트의 광원으로는 형광램프가 주로 사용되고 있다.In general, a transmissive liquid crystal display device, which is used, does not emit light by itself, and thus requires a backlight on the back of the liquid crystal display, and the performance of the liquid crystal display device is largely dependent on the performance of the backlight used as well. At present, a fluorescent lamp is mainly used as a light source of the backlight unit.

종래 기술에 따른 액정표시장치의 백라이트 유니트는 광원인 램프와, 반사판과, 램프에서 나오는 빛의 방향과 광량을 조절해 주는 도광판과, 빛을 확산시키는 확산판과, 빛을 모아서 휘도를 상승시키는 프리즘 시트와, 프리즘 시트를 보호해주는 보호시트로 구성되며, 그 위에 판넬을 제조하여 하나의 모듈이 완성된다.The backlight unit of the LCD according to the prior art includes a lamp as a light source, a reflector, a light guide plate for adjusting the direction and amount of light emitted from the lamp, a diffuser plate for diffusing light, and a prism for collecting light to increase brightness. It consists of a sheet and a protective sheet that protects the prism sheet, and a panel is manufactured thereon to complete one module.

도 1는 종래 기술에 따른 액정표시장치의 백라이트 유닛에 있어서 램프 및 그 연결부와 램프 홀더를 도시한 평면도이다.1 is a plan view illustrating a lamp, a connection portion thereof, and a lamp holder in a backlight unit of a liquid crystal display according to the related art.

종래 기술에 따른 액정표시장치의 백라이트 유닛에 있어서, 램프(101)는 도 1에 도시된 바와 같이, 램프 글래스(100)와, 램프 전극(102)과, 코바(KOV)(104)로 구성된다.In the backlight unit of the liquid crystal display according to the prior art, the lamp 101 is composed of a lamp glass 100, a lamp electrode 102, and a KOVA 104 as shown in FIG. .

상기 램프 글라스(100) 내의 램프 전극(102)은 코바(KOV)(104)에 연결되어 있고, 상기 코바(104)의 말단부에 램프 리드(108)가 도출되어 있다.The lamp electrode 102 in the lamp glass 100 is connected to a KOVA 104, and a lamp lead 108 is led to the distal end of the KOVA 104.

또한, 상기 램프 전극(102)에 일정 전압과 일정 주파수의 전류를 공급하기 위한 와이어(112)(wire)와 상기 램프 리드(108)가 솔더링(soldering)되어 있다.In addition, a wire 112 and a lamp lead 108 for supplying a current having a constant voltage and a constant frequency to the lamp electrode 102 are soldered.

그리고 램프(101)와 와이어(112)에 걸치도록 램프 홀더(130)이 끼워져 있다.The lamp holder 130 is fitted to span the lamp 101 and the wire 112.

일반적으로 상기 백라이트 유닛 구조에서, 램프(101)를 온시키기 위해 램프의 양극단에 와이어(112)를 솔더링하며, 상기 램프는 와이어(112)를 통해 인가되는 전류로 구동된다.In general, in the backlight unit structure, the wire 112 is soldered to the anode end of the lamp to turn on the lamp 101, and the lamp is driven by a current applied through the wire 112.

와이어 솔더링된 부분은 외부에 노출되어 있고 일정 전압의 전류가 흐르는 위험한 부분으로, 램프 홀더(130)를 끼운다. 이때, 상기 램프 홀더(130)는 실리콘 등의 절연체로 만들어진다.The wire soldered portion is exposed to the outside and a dangerous portion of the current flowing in a constant voltage, the lamp holder 130 is fitted. At this time, the lamp holder 130 is made of an insulator such as silicon.

따라서, 상기 솔더링된 부분은 램프 홀더(130)로 인해 외부와 차단되는 효과를 가져온다.Thus, the soldered portion has the effect of being blocked from the outside due to the lamp holder 130.

도 2는 종래 기술에 따른 문제점을 도시한 평면도이다.2 is a plan view showing a problem according to the prior art.

그러나, 종래 기술에서는 램프 홀더에 의해 램프의 양끝단이 외부와 차단됨에 따라, 도 2에 도시된 바와 같이, 램프(101)에서 나오는 빛(122)이 도광판(120)의 입광부로 전달되지 못하여 암부(121)가 발생되는 문제점이 있었다.However, in the prior art, as both ends of the lamp are blocked from the outside by the lamp holder, as shown in FIG. 2, the light 122 emitted from the lamp 101 may not be transmitted to the light incident part of the light guide plate 120. There was a problem that the arm 121 is generated.

이에 본 발명은 상기 종래의 문제점을 해결하기 위해 안출된 것으로, 램프의 양끝단에 암부 발생을 방지할 수 있는 액정표시장치의 백라이트 유닛을 제공함에 그 목적이 있다.Accordingly, an object of the present invention is to provide a backlight unit of a liquid crystal display device capable of preventing the occurrence of dark portions at both ends of a lamp.

도 1는 종래 기술에 따른 액정표시장치의 백라이트 유닛에 있어서 램프 및 그 연결부와 램프 홀더를 도시한 평면도.1 is a plan view illustrating a lamp, a connection portion thereof, and a lamp holder in a backlight unit of a liquid crystal display according to the related art.

도 2는 종래 기술에 따른 문제점을 도시한 도면.2 shows a problem according to the prior art;

도 3은 본 발명에 따른 백라이트 유닛에 있어 램프 홀더를 도시한 평면도.3 is a plan view showing a lamp holder in the backlight unit according to the present invention.

도면의 주요부분에 대한 부호의 설명Explanation of symbols for main parts of the drawings

200. 램프 글라스 201. 램프200. Lamp Glass 201. Lamp

202. 램프전극 204. 코바202. Lamp electrode 204. COVA

208. 램프리드 212. 와이어208. Lamp lead 212. Wire

220. 도광판 222. 빛220.Light guide plate 222.Light

230. 램프 홀더230. Lamp Holder

상기 목적을 달성하기 위한 본 발명의 액정표시장치의 백라이트 유닛은 램프글라스 내의 램프 전극에 연결되어 있고 램프 글라스 외부로 일부분이 도출되어 있는 코바에 연결된 램프리드로 이루어진 램프와, 램프리드와 솔더링되는 와이어와,램프 일부와 와이어에 걸치도록 끼워지며, 도광판 입광면 부분을 노출시키는 램프 홀더를 포함한 것을 특징으로 한다.The backlight unit of the liquid crystal display device of the present invention for achieving the above object is a lamp consisting of a lamp lead connected to a lamp electrode connected to the lamp electrode in the lamp glass and a part is led out of the lamp glass, and a wire soldered with the lamp lead And a lamp holder fitted over a portion of the lamp and the wire and exposing the light guide plate incident surface portion.

이하, 본 발명의 바람직한 실시예를 첨부된 도면을 참조하여 상세히 설명하면 다음과 같다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 3은 본 발명에 따른 백라이트 유닛에 있어 램프 홀더를 도시한 평면도이다.3 is a plan view illustrating a lamp holder in the backlight unit according to the present invention.

본 발명에 따른 액정표시장치의 백라이트 유닛에 있어서, 램프(201)는 도 3에 도시된 바와 같이, 램프 글래스(200)와, 램프 전극(202)과, 코바(KOV)(204)로 구성된다.In the backlight unit of the liquid crystal display device according to the present invention, the lamp 201 is composed of a lamp glass 200, a lamp electrode 202, and a KOVA (204) as shown in FIG. .

상기 램프 글라스(200) 내의 램프 전극(202)은 코바(KOV)(204)에 연결되어 있고, 상기 코바(204)의 말단부에 램프 리드(208)가 도출되어 있다.The lamp electrode 202 in the lamp glass 200 is connected to a KOVA (204), and a lamp lead 208 is drawn out at the distal end of the KOVA (204).

또한, 상기 램프 전극(202)에 일정 전압과 일정 주파수의 전류를 공급하기 위한 와이어(112)는 상기 램프 리드(208)와 솔더링되어 있다.In addition, a wire 112 for supplying a constant voltage and a current having a constant frequency to the lamp electrode 202 is soldered with the lamp lead 208.

그리고 상기 램프(201)의 일부 및 와이어(212)에 걸치도록 램프 홀더(230)이 끼워져 있다. 상기 램프 홀더(230)는 도광판(220)의 입광면 부분을 노출시킨다.The lamp holder 230 is fitted to cover a portion of the lamp 201 and the wire 212. The lamp holder 230 exposes a light incident surface portion of the light guide plate 220.

상기 백라이트 유닛 구조에서, 상기 램프(201)를 온시키기 위해 램프의 극단에 와이어(212)를 솔더링하며, 상기 램프(201)는 와이어(112)를 통해 인가되는 전류로 구동된다.In the backlight unit structure, a wire 212 is soldered to an extreme of the lamp to turn on the lamp 201, and the lamp 201 is driven by a current applied through the wire 112.

램프 홀더(230)은 와이어 솔더링된 부분을 포함하여 램프(201)의 일부와 와이어(212)에 걸치도록 끼워지며, 도광판(222) 입광면 부분을 노출시킨다.The lamp holder 230 is fitted to span a portion of the lamp 201 and the wire 212, including the wire soldered portion, and exposes the light guide plate 222 light incident surface portion.

이때, 상기 램프 홀더(230)는 절연 재료로서 램프(201)에서 나오는 빛(222)이 투과할 수 있도록 투명한 재질을 사용한다.In this case, the lamp holder 230 uses a transparent material so that the light 222 from the lamp 201 can be transmitted as an insulating material.

따라서, 본 발명에서는 램프(201)에서 나오는 빛(222)이 도광판(220)의 입광부로 전달되므로 암부가 발생되는 것을 방지한다.Therefore, in the present invention, since the light 222 emitted from the lamp 201 is transmitted to the light incident part of the light guide plate 220, the dark part is prevented from occurring.

이상에서와 같이, 본 발명에서는 램프의 일부 및 와이어를 걸치도록 끼워지며, 도광판 입광부 부분을 노출시키도록 램프 홀더를 형성함으로써, 램프에서 나오는 빛을 도광판 입광부 부분으로 인가될 수 있도록 한다. 따라서, 화면 상에 나타나는 암부를 줄일 수 있다.As described above, in the present invention, the lamp holder is fitted to cover a part of the lamp and the wire, and the lamp holder is formed to expose the light guide plate part, so that light emitted from the lamp can be applied to the light guide plate part. Therefore, the dark part appearing on the screen can be reduced.

또한, 램프 홀더로서 투명한 재질을 이용함으로써, 램프에서 나오는 빛이 램프 홀더를 투과시키어 빛의 효율을 증대시키고, 또한 화면상 암부를 줄일 수 있다.In addition, by using a transparent material as the lamp holder, the light from the lamp can pass through the lamp holder to increase the efficiency of the light, and also to reduce the dark portion on the screen.

기타, 본 발명은 그 요지를 일탈하지 않는 범위에서 다양하게 변경하여 실시할 수 있다.In addition, this invention can be implemented in various changes within the range which does not deviate from the summary.

Claims (2)

램프글라스 내의 램프 전극에 연결되어 있고 상기 램프 글라스 외부로 일부분이 도출되어 있는 코바에 연결된 램프리드로 이루어진 램프와,A lamp consisting of a lamp lead connected to a lamp electrode in the lamp glass and connected to a cobar which is partially drawn out of the lamp glass; 상기 램프리드와 솔더링되는 와이어와,A wire soldered to the lamp lead, 상기 램프 일부와 상기 와이어에 걸치도록 끼워지며, 도광판 입광면 부분을 노출시키는 램프 홀더를 포함한 것을 특징으로 하는 액정표시장치의 백라이트 유닛.And a lamp holder fitted to the part of the lamp and the wire and exposing a part of the light guide plate incident surface. 제 1항에 있어서, 상기 램프 홀더는 투명한 재질을 이용하는 것을 특징으로 하는 액정표시장치의 백라이트 유닛.The backlight unit of claim 1, wherein the lamp holder is made of a transparent material.
KR1020010088969A 2001-12-31 2001-12-31 backlight unit for liquid crystal display device KR100807888B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020010088969A KR100807888B1 (en) 2001-12-31 2001-12-31 backlight unit for liquid crystal display device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020010088969A KR100807888B1 (en) 2001-12-31 2001-12-31 backlight unit for liquid crystal display device

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KR20030058513A true KR20030058513A (en) 2003-07-07
KR100807888B1 KR100807888B1 (en) 2008-02-27

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7762269B2 (en) 2005-06-02 2010-07-27 The Procter & Gamble Company Cosmetic applicator

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JPH09259749A (en) * 1996-03-25 1997-10-03 Oputonikusu Kk Small-sized fluorescent lamp
KR19980084869A (en) * 1997-05-27 1998-12-05 윤종용 Backlighting device for liquid crystal display device
JPH1196821A (en) * 1997-09-16 1999-04-09 Denso Corp Lighting system
KR100690004B1 (en) * 2000-12-11 2007-03-08 엘지.필립스 엘시디 주식회사 Lamp Apparatus for Liquid Crystal Display

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7762269B2 (en) 2005-06-02 2010-07-27 The Procter & Gamble Company Cosmetic applicator

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