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KR100617023B1 - Backlight Assembly of Liquid Crystal Display - Google Patents

Backlight Assembly of Liquid Crystal Display Download PDF

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Publication number
KR100617023B1
KR100617023B1 KR1020000041653A KR20000041653A KR100617023B1 KR 100617023 B1 KR100617023 B1 KR 100617023B1 KR 1020000041653 A KR1020000041653 A KR 1020000041653A KR 20000041653 A KR20000041653 A KR 20000041653A KR 100617023 B1 KR100617023 B1 KR 100617023B1
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lamp
guide plate
light guide
liquid crystal
crystal display
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KR20020008472A (en
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정상교
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엘지.필립스 엘시디 주식회사
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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
    • G02F1/133308—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
    • G02F1/1335—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
    • 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
    • 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
    • G02F2201/50—Protective arrangements
    • G02F2201/503—Arrangements improving the resistance to shock

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  • Physics & Mathematics (AREA)
  • Nonlinear 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

본 발명은 액정표시장치에 관한 것으로, 특히 도광판에 의해 램프가 파손되는 것을 방지할 수 있는 액정표시장치의 백라이트 어셈블리에 관한 것이다.The present invention relates to a liquid crystal display device, and more particularly, to a backlight assembly of a liquid crystal display device that can prevent the lamp from being damaged by the light guide plate.

이를 위해, 본 발명에 따른 액정표시장치의 백라이트 어셈블리는 광원으로 사용되는 램프와, 상기 램프를 안착할 수 있도록 일단에 램프의 길이 방향으로 램프 수용홈이 형성되고 램프에서 조사된 빛을 LCD 패널로 공급하는 도광판과, 상기 램프의 일단을 수용함과 동시에 상기 도광판에 체결되어 램프를 고정시키는 램프홀더와, 상기 램프가 수용된 도광판이 삽입 안착되는 램프하우징으로 구성된 것을 특징으로 한다.To this end, the backlight assembly of the liquid crystal display according to the present invention is a lamp used as a light source, and a lamp receiving groove is formed in the longitudinal direction of the lamp at one end so that the lamp can be seated, and the light irradiated from the lamp to the LCD panel. And a lamp holder for accommodating one end of the lamp, a lamp holder fastened to the light guide plate to fix the lamp, and a light housing plate into which the lamp is accommodated.

액정표시장치, 백라이트 어셈블리LCD, backlight assembly

Description

액정표시장치의 백라이트 어셈블리{backlight assembly of LCD}Backlight assembly of LCD device

도 1은 종래 액정표시장치의 구성을 나타낸 종단면도1 is a longitudinal cross-sectional view showing the configuration of a conventional liquid crystal display device;

도 2는 본 발명의 일 실시예에 따른 액정표시장치의 백라이트 어셈블리를 나타낸 사시도2 is a perspective view illustrating a backlight assembly of a liquid crystal display according to an exemplary embodiment of the present invention.

도 3은 본 발명의 다른 실시예에 따른 액정표시장치의 백라이트 어셈블리를 나타낸 사시도3 is a perspective view illustrating a backlight assembly of a liquid crystal display according to another exemplary embodiment of the present invention.

* 도면의 주요부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings

10 : 램프 40 : 램프하우징10: lamp 40: lamp housing

50 : 도광판 60 : 램프홀더50: light guide plate 60: lamp holder

본 발명은 액정표시장치에 관한 것으로, 특히 액정표시장치의 백라이트 어셈블리에 관한 것이다.The present invention relates to a liquid crystal display device, and more particularly, to a backlight assembly of a liquid crystal display device.

액정표시장치(liquid crystal display module)라 함은, 박막 트랜지스터가 형성되어 있는 하부 유리기판과 컬러필터가 형성되어 있는 상부 유리기판 사이에 액정을 주입하고 그 특성을 이용해 영상효과를 얻는 장치로서, 그 원리는 유리기판 안쪽의 투명한 전극판에 전압이 걸리면 그 사이에 있는 액정의 분자 운동 방향이 갈라져서 이것을 통과하는 빛의 양이 변함에 따라 영상이 구현되는 것이다. 이러한 액정표시장치는 랩탑, 노트북 컴퓨터, 휴대용 전자계산기 등과 같이 크기가 작고 가벼운 기기의 화면 표시장치로 적합하다. A liquid crystal display module is a device that injects liquid crystal between a lower glass substrate on which a thin film transistor is formed and an upper glass substrate on which a color filter is formed, and obtains an image effect using the characteristics thereof. The principle is that when a voltage is applied to a transparent electrode plate inside a glass substrate, the direction of molecular movement of the liquid crystal in between is divergent and the amount of light passing therethrough changes to produce an image. Such a liquid crystal display device is suitable as a screen display device of small and light devices such as laptops, notebook computers, portable electronic calculators, and the like.

이하, 첨부된 도면을 참조하여 액정표시장치의 구성을 설명하면 다음과 같다.Hereinafter, a configuration of a liquid crystal display device will be described with reference to the accompanying drawings.

도 1은 종래 액정표시장치의 구성을 나타낸 종단면도로서, 데이터를 디스플레이하는 LCD 패널(20)과, 상기 LCD 패널 하부에 위치하고 LCD 패널의 배면을 투사하는 백라이트 어셈블리(backlight assembly)와, 상기 LCD 패널(20)과 백라이트 어셈블리를 지지하는 메인 서포터(3)와, 상기 LCD 패널과 백라이트 어셈블리를 보호하는 상부샤시(1) 및 하부샤시(2)로 구성된다. 1 is a vertical cross-sectional view showing a configuration of a conventional liquid crystal display device, the LCD panel 20 for displaying data, a backlight assembly positioned under the LCD panel and projecting a rear surface of the LCD panel, and the LCD panel. And a main supporter 3 for supporting the backlight assembly, and an upper chassis 1 and a lower chassis 2 for protecting the LCD panel and the backlight assembly.

여기서, 상기 백라이트 어셈블리는 광원으로 사용되는 램프(10)와, 상기 램프가 삽입되고 일측면이 개구되어 램프(10)에서 조사된 빛을 반사하는 램프하우징(12)과, 상기 램프하우징 내에 램프를 고정시키는 램프홀더(14)와, 상기 램프(10)와 적정 간격을 유지하며 램프하우징(12)에 삽입 안착되어 램프(10)에서 조사된 빛을 LCD 패널(20)에 균일하게 공급하는 도광판(16)으로 구성된다. Here, the backlight assembly includes a lamp 10 used as a light source, a lamp housing 12 into which the lamp is inserted and one side of which is opened to reflect light emitted from the lamp 10, and a lamp in the lamp housing. A lamp holder 14 to fix the light guide plate and a light guide plate to be inserted into and mounted in the lamp housing 12 while maintaining a proper distance from the lamp 10 to uniformly supply the light emitted from the lamp 10 to the LCD panel 20 ( 16).

한편, 상기 도광판(16)의 하부면에는 램프에서 새어나온 빛을 도광판으로 재반사시키는 반사시트(18)가 밀착되어 있고, 상기 도광판(16)의 상부면에는 도광판에서 입사된 빛을 확산시키는 확산시트와 상기 확산시트에 의해 확산된 빛을 집광시켜 LCD 패널(20)로 전달하는 프리즘시트 등이 순차적으로 밀착되어 있다. On the other hand, the lower surface of the light guide plate 16 is in close contact with the reflection sheet 18 for reflecting light leaked from the lamp back to the light guide plate, and the upper surface of the light guide plate 16 is diffused to diffuse the light incident from the light guide plate A sheet and a prism sheet for condensing the light diffused by the diffusion sheet and transferring the light to the LCD panel 20 are sequentially in close contact with each other.                         

그러나, 상기한 구조를 갖는 액정표시장치의 백라이트 어셈블리는 외부 충격이 가해졌을 경우, 상기 도광판(16)이 미세하게나마 이동하게 되면서 램프(10)와 접촉하게 되어, 램프가 파손되는 문제점이 발생하게 되었다.However, when the backlight assembly of the liquid crystal display device having the above structure is subjected to an external impact, the light guide plate 16 is slightly moved and comes into contact with the lamp 10, resulting in a problem that the lamp is broken. .

본 발명은 상기한 문제점을 해결하기 위해 안출된 것으로, 본 발명의 목적은 도광판에 의해 램프가 파손되는 것을 방지할 수 있는 액정표시장치의 백라이트 어셈블리를 제공하는 것이다.The present invention has been made to solve the above problems, and an object of the present invention is to provide a backlight assembly of a liquid crystal display device that can prevent the lamp from being damaged by the light guide plate.

상기한 목적을 달성하기 위해, 본 발명에 따른 액정표시장치의 백라이트 어셈블리는 광원으로 사용되는 램프와, 상기 램프를 안착할 수 있도록 일단에 램프의 길이 방향으로 램프 수용홈이 형성되고 램프에서 조사된 빛을 LCD 패널로 공급하는 도광판과, 상기 램프의 일단을 수용함과 동시에 상기 도광판에 체결되어 램프를 고정시키는 램프홀더와, 상기 램프가 수용된 도광판이 삽입 안착되는 램프하우징으로 구성된 것을 특징으로 한다.In order to achieve the above object, the backlight assembly of the liquid crystal display according to the present invention is a lamp used as a light source, and a lamp receiving groove is formed in the longitudinal direction of the lamp at one end so as to mount the lamp and irradiated from the lamp. A light guide plate for supplying light to the LCD panel, a lamp holder for accommodating one end of the lamp and fixed to the light guide plate to fix the lamp, and a lamp housing into which the light guide plate containing the lamp is inserted and seated.

이하, 본 발명의 실시예에 따른 액정표시장치의 백라이트 어셈블리를 첨부된 도면을 참조하여 설명하면 다음과 같다.Hereinafter, a backlight assembly of a liquid crystal display according to an exemplary embodiment of the present invention will be described with reference to the accompanying drawings.

먼저, 도 2는 본 발명의 일 실시예에 따른 액정표시장치의 백라이트 어셈블리의 구성을 나타낸 사시도이고, 도 3은 본 발명의 다른 실시예에 따른 액정표시장치의 백라이트 어셈블리의 구성을 나타낸 사시도이다.First, FIG. 2 is a perspective view showing a configuration of a backlight assembly of a liquid crystal display according to an exemplary embodiment of the present invention, and FIG. 3 is a perspective view showing a configuration of a backlight assembly of a liquid crystal display according to another exemplary embodiment of the present invention.

본 발명의 일 실시예에 따른 액정표시장치의 백라이트 어셈블리는, 도 2에 도시된 바와 같이 액정표시장치의 광원으로 사용되는 램프(10)와, 상기 램프를 수용할 수 있도록 일단에 램프의 길이방향으로 램프 수용홈(52)이 형성된 도광판(50)과, 상기 램프(10)의 일단을 수용함과 동시에 상기 도광판(50)에 체결되는 램프홀더(60)와, 상기 램프(10)가 수용된 도광판(50)이 삽입 안착되는 램프하우징(40)으로 구성된다.In the backlight assembly of the liquid crystal display according to the exemplary embodiment of the present invention, as shown in FIG. 2, a lamp 10 used as a light source of the liquid crystal display and a length direction of the lamp at one end thereof to accommodate the lamp are provided. The light guide plate 50 having the lamp receiving groove 52 formed therein, a lamp holder 60 accommodating one end of the lamp 10 and fastened to the light guide plate 50, and a light guide plate in which the lamp 10 is accommodated. 50 is composed of a lamp housing 40 is inserted and seated.

여기서, 상기 도광판(50)에는 램프 수용홈(52)의 양측에 상기 램프홀더(60)를 체결할 수 있도록 소정의 길이를 갖는 램프홀더 체결홈(54a)과 상기 램프홀더 체결홈의 끝단에 걸림홈(56)이 형성됨과 동시에, 상, 하부면에 상기 램프하우징(40)을 체결할 수 있도록 소정의 길이를 갖는 하우징 체결홈(58)이 형성된다.Here, the light guide plate 50 is caught by the end of the lamp holder fastening groove 54a having a predetermined length and the lamp holder fastening groove so as to fasten the lamp holder 60 to both sides of the lamp receiving groove 52. At the same time as the groove 56 is formed, the housing fastening groove 58 having a predetermined length is formed to fasten the lamp housing 40 to the upper and lower surfaces.

이 때, 상기 도광판(50)의 램프홀더 체결홈(54a)과 하우징 체결홈(58)의 깊이는 램프(10)에서 조사된 빛이 도광판(50)으로 전달되는 것을 방해하지 않는 깊이가 되어야 한다.At this time, the depth of the lamp holder fastening groove 54a and the housing fastening groove 58 of the light guide plate 50 should be a depth that does not prevent the light irradiated from the lamp 10 from being transmitted to the light guide plate 50. .

한편, 상기 도광판(50)에 형성된 램프 수용홈(52)의 하부면과 좌측면에는 램프(10)에서 조사된 빛이 반사되어 도광판으로 원활히 공급될 수 있도록 반사시트가 존재함이 바람직하며, 이 경우 상기 램프 수용홈(52)의 좌측면은 곡면으로 형성됨이 바람직하다.On the other hand, the lower surface and the left surface of the lamp receiving groove 52 formed in the light guide plate 50 is preferably a reflection sheet so that the light irradiated from the lamp 10 can be reflected and smoothly supplied to the light guide plate. In this case, the left side of the lamp receiving groove 52 is preferably formed in a curved surface.

그리고, 상기 램프홀더(60)는 상기 도광판(50)의 램프 수용홈(52)에 삽입되는 삽입부(62)에 상기 램프(10)의 일단을 수용할 수 있는 램프 수용부(63)와, 상기 삽입부(62)의 좌, 우측에 상기 도광판(50)에 형성된 램프홀더 체결홈(54a)에 삽입 되어 체결될 수 있도록 상기 램프홀더 체결홈의 길이와 상응하는 길이를 갖는 연장부(64)와, 상기 연장부의 끝단에 상기 램프홀더 체결홈(54a)의 끝단에 위치하는 걸림홈(56)에 체결되는 걸림돌기(66)로 구성된다. The lamp holder 60 may include a lamp accommodating part 63 capable of accommodating one end of the lamp 10 in an insertion part 62 inserted into the lamp accommodating groove 52 of the light guide plate 50. Extension portion 64 having a length corresponding to the length of the lamp holder fastening groove to be inserted into the lamp holder fastening groove 54a formed in the light guide plate 50 on the left and right sides of the insertion part 62. And, it is composed of a locking projection 66 is fastened to the locking groove 56 located at the end of the lamp holder fastening groove 54a at the end of the extension.

이 때, 상기 램프홀더(60)는 걸림돌기(66)가 도광판(50)의 램프홀더 체결홈(54a)을 통해 삽입되기 위해서 탄성을 가진 부재임이 바람직하다.At this time, the lamp holder 60 is preferably a member having an elasticity so that the engaging projection 66 is inserted through the lamp holder fastening groove 54a of the light guide plate 50.

그리고, 상기 램프하우징(40)은 상부면 및 하부면 일단에 상기 도광판(50)에 형성된 하우징 체결홈(58)에 체결될 수 있도록 상기 하우징 체결홈과 상응하는 길이를 갖는 걸림턱(48)이 형성된다. In addition, the lamp housing 40 has a locking jaw 48 having a length corresponding to the housing fastening groove so that the lamp housing 40 can be fastened to the housing fastening groove 58 formed in the light guide plate 50 at one end of the upper and lower surfaces. Is formed.

그리고, 상기 도광판(50)의 하부면에 형성된 하우징 체결홈(58)의 우측에는 램프(10)에서 새어나온 빛을 도광판(50)으로 재반사시키는 반사시트(72)가 도광판의 하부면에 밀착되어 있고, 상기 도광판(50)의 상부면에는 도광판에서 입사된 빛을 확산시키는 확산시트(74)와 상기 확산시트에 의해 확산된 빛을 집광시켜 LCD 패널(도시 생략)로 전달하는 프리즘시트(76) 등이 순차적으로 밀착되어 있다.On the right side of the housing fastening groove 58 formed on the lower surface of the light guide plate 50, a reflective sheet 72 for re-reflecting light leaking from the lamp 10 to the light guide plate 50 is in close contact with the bottom surface of the light guide plate. The upper surface of the light guide plate 50 has a diffusion sheet 74 for diffusing light incident from the light guide plate and a prism sheet 76 for condensing the light diffused by the diffusion sheet and transferring the light to the LCD panel (not shown). ) And the like are in close contact with each other.

한편, 도 3은 본 발명의 다른 실시예에 따른 액정표시장치의 백라이트 어셈블리를 나타낸 사시도로서, 상기 도광판(50)의 램프 수용홈(52)의 우측에 형성된 램프홀더 체결홈(54b)에 상부 하우징 체결홈이 같이 형성된 것이 특징이다.3 is a perspective view illustrating a backlight assembly of a liquid crystal display according to another exemplary embodiment, and includes an upper housing in a lamp holder fastening groove 54b formed at a right side of a lamp receiving groove 52 of the light guide plate 50. The fastening groove is formed together.

이하, 본 발명에 따른 액정표시장치 어셈블리의 조립과정을 설명하면 다음과 같다.Hereinafter, the assembly process of the liquid crystal display assembly according to the present invention will be described.

먼저, 램프(10)를 상기 램프홀더(60)의 램프 수용부(63)에 안착시킨 후, 상기 도광판(50)의 램프 수용홈(52)과 램프홀더 체결홈(54a,54b)을 따라 상기 램프홀 더(60)를 삽입한다. 이 때, 상기 램프홀더(60)의 연장부(64) 끝단에 형성된 걸림돌기(66)가 상기 램프홀더 체결홈(54a,54b)의 걸림홈(56)에 체결되어 램프(10)를 단단히 고정하게 된다.First, the lamp 10 is seated on the lamp receiving portion 63 of the lamp holder 60, and then the lamp receiving groove 52 and the lamp holder fastening grooves 54a and 54b of the light guide plate 50 are disposed above the lamp holder 60. Insert the lampholder 60. At this time, the locking projection 66 formed at the end of the extension 64 of the lamp holder 60 is fastened to the locking groove 56 of the lamp holder coupling grooves 54a and 54b to firmly fix the lamp 10. Done.

다음, 램프홀더(60)에 의해 램프(10)가 고정되어 있는 도광판(50)을 상기 램프하우징(40)에 끼움으로서, 램프하우징(40)의 걸림턱(48)이 도광판(50)에 형성된 하우징 체결홈(58)에 단단히 체결된다. Next, by fitting the light guide plate 50 to which the lamp 10 is fixed by the lamp holder 60 to the lamp housing 40, the locking projection 48 of the lamp housing 40 is formed on the light guide plate 50. It is firmly fastened to the housing fastening groove 58.

본 발명에 따른 액정표시장치의 백라이트 어셈블리는, 램프가 도광판에 수용되어 램프홀더에 의해 단단히 고정됨으로 인해, 외부 충격시 상기 도광판에 의한 램프의 파손을 방지할 수 있다.
In the backlight assembly of the liquid crystal display according to the present invention, since the lamp is accommodated in the light guide plate and firmly fixed by the lamp holder, the lamp may be prevented from being damaged by the light guide plate during an external impact.

Claims (5)

광원으로 사용되는 램프와;A lamp used as a light source; 상기 램프를 안착할 수 있도록 일단에 램프의 길이 방향으로 램프 수용홈이 형성되고, 램프에서 조사된 빛을 LCD 패널로 공급하는 도광판과;A light guide plate having a lamp receiving groove formed at one end thereof in a longitudinal direction of the lamp so as to mount the lamp and supplying light emitted from the lamp to the LCD panel; 상기 램프를 고정할 수 있도록 램프 일단을 수용함과 동시에 상기 도광판에 체결되는 램프홀더와;A lamp holder configured to receive one end of the lamp and to be fastened to the light guide plate to fix the lamp; 상기 램프가 수용된 도광판이 삽입 안착되는 램프하우징으로 구성된 것을 특징으로 하는 액정표시장치의 백라이트 어셈블리.And a lamp housing in which the light guide plate containing the lamp is inserted and seated. 제 1 항에 있어서,The method of claim 1, 상기 도광판에는, In the light guide plate, 램프 수용홈의 양측에 상기 램프홀더를 체결할 수 있도록 소정의 길이를 갖는 램프홀더 체결홈과, 상기 램프홀더 체결홈의 끝단에 형성된 걸림홈이 형성되는 것을 특징으로 하는 액정표시장치의 백라이트 어셈블리.And a lamp holder fastening groove having a predetermined length so as to fasten the lamp holder to both sides of a lamp receiving groove, and a locking groove formed at an end of the lamp holder fastening groove. 제 1 항에 있어서,The method of claim 1, 상기 램프홀더는, The lamp holder, 상기 도광판의 램프 수용홈에 삽입되는 삽입부에 상기 램프의 일단을 수용할 수 있는 램프 수용부와, 상기 삽입부의 좌,우측에 상기 도광판에 형성된 램프홀더 체결홈에 체결되는 연장부와, 상기 연장부의 끝단에 형성된 걸림돌기로 구성된 것을 특징으로 하는 액정표시장치의 백라이트 어셈블리.A lamp accommodating part capable of receiving one end of the lamp in an insertion part inserted into a lamp accommodating groove of the light guide plate, an extension part fastened to a lampholder fastening groove formed in the light guide plate at left and right sides of the insertion part; The backlight assembly of the liquid crystal display device, characterized in that consisting of the engaging projection formed on the end of the portion. 제 1 항에 있어서,The method of claim 1, 상기 도광판에는, In the light guide plate, 상부면 및 하부면 일단에 상기 램프하우징을 체결할 수 있도록 소정의 길이를 갖는 하우징 체결홈이 형성되는 것을 특징으로 하는 액정표시장치의 백라이트 어셈블리. A housing assembly groove having a predetermined length is formed on one end of the upper surface and the lower surface to fasten the lamp housing. 제 1 항에 있어서,The method of claim 1, 상기 램프 하우징에는,The lamp housing, 상부면 및 하부면 일단에 상기 도광판의 하우징 체결홈에 체결될 수 있는 걸림턱이 형성되는 것을 특징으로 하는 액정표시장치의 백라이트 어셈블리.A backlight assembly of the liquid crystal display device, characterized in that the engaging jaw is formed to be fastened to the housing fastening groove of the light guide plate at one end of the upper surface and the lower surface.
KR1020000041653A 2000-07-20 2000-07-20 Backlight Assembly of Liquid Crystal Display Expired - Fee Related KR100617023B1 (en)

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KR100880219B1 (en) * 2002-09-25 2009-01-28 엘지디스플레이 주식회사 Back light
KR101212134B1 (en) * 2005-03-30 2012-12-14 엘지디스플레이 주식회사 liquid crystal display device
KR101319498B1 (en) * 2006-11-30 2013-10-17 엘지디스플레이 주식회사 Backlight assembly of liquid crystal display
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