KR20050080358A - Liquid crystal display - Google Patents
Liquid crystal display Download PDFInfo
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- KR20050080358A KR20050080358A KR1020040008435A KR20040008435A KR20050080358A KR 20050080358 A KR20050080358 A KR 20050080358A KR 1020040008435 A KR1020040008435 A KR 1020040008435A KR 20040008435 A KR20040008435 A KR 20040008435A KR 20050080358 A KR20050080358 A KR 20050080358A
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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
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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
- G02F1/133504—Diffusing, scattering, diffracting elements
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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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- 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
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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)
- Liquid Crystal (AREA)
Abstract
본 발명은, 액정패널과, 상기 액정패널의 배면에 평행하게 마련된 확산판과, 상기 액정패널의 연부를 지지하는 몰드프레임과, 상기 확산판을 통해 상기 액정패널로 빛을 조사하는 램프를 갖는 액정표시장치에 관한 것으로, 상기 확산판의 연부를 지지하는 확산판지지부와, 상기 몰드프레임을 지지하는 몰드지지부와, 상기 확산판지지부와 상기 몰드지지부 사이에 개재되어 상기 확산판과 상기 몰드프레임이 이격 지지되도록 하는 돌출부를 가지는 바텀샤시를 포함하는 것을 특징으로 한다. 이에 의하여, 몰드프레임을 사용함으로써 액정패널을 간단하게 지지하고, 확산판이 바텀샤시에 안정적으로 지지되며, 바텀샤시에 대한 확산판 및 몰드프레임의 조립성과 바텀샤시의 강성을 향상시킨 액정표시장치를 제공할 수 있다.The present invention provides a liquid crystal having a liquid crystal panel, a diffusion plate provided in parallel with a rear surface of the liquid crystal panel, a mold frame supporting the edge of the liquid crystal panel, and a lamp for irradiating light to the liquid crystal panel through the diffusion plate. A display device, comprising: a diffusion plate supporter for supporting an edge of the diffusion plate, a mold supporter for supporting the mold frame, and a gap between the diffusion plate supporter and the mold supporter to separate the diffusion plate from the mold frame. And a bottom chassis having a protrusion to be supported. Accordingly, by using a mold frame, the liquid crystal panel is easily supported, the diffusion plate is stably supported on the bottom chassis, and the liquid crystal display device is improved in assembling of the diffusion plate and the mold frame to the bottom chassis and the rigidity of the bottom chassis. can do.
Description
본 발명은, 액정표시장치에 관한 것으로, 보다 상세하게는, 바텀샤시의 구조를 개선한 액정표시장치에 관한 것이다.The present invention relates to a liquid crystal display device, and more particularly, to a liquid crystal display device having an improved structure of a bottom chassis.
일반적으로 액정표시장치(Liquid Crystal Display)는 매트릭스(Matrix)형태로 배열된 액정 셀들의 광투과율을 화상신호정보에 따라 조절함으로써, 원하는 화상을 표시할 수 있도록 하는 장치이다.In general, a liquid crystal display (LCD) is a device that can display a desired image by adjusting the light transmittance of liquid crystal cells arranged in a matrix form according to image signal information.
이러한 액정표시장치는 자체발광이 아니며 백라이트유닛에서 조사되는 빛을 이용하여 화면을 표시하게 된다. 따라서, 화상을 형성하는 액정패널의 배면에는 램프와 확산판을 포함한 백라이트유닛이 마련된다. 백라이트유닛은 램프가 설치되는 위치에 따라 에지방식과 직하방식으로 구분된다.Such a liquid crystal display is not self-emission and displays a screen by using light emitted from the backlight unit. Therefore, a backlight unit including a lamp and a diffusion plate is provided on the rear surface of the liquid crystal panel forming the image. The backlight unit is divided into an edge method and a direct method according to the location where the lamp is installed.
직하방식은 확산판의 배면에 복수의 램프를 일렬로 배열하여 액정패널로 직접조광을 하는 방식이다. 직하방식은 에지방식에 비해 빛의 균일성 및 내구성은 떨어지나 광 이용효율이 좋아 고휘도를 요구하는 대형 액정표시장치에 주로 사용된다.The direct method is a method in which a plurality of lamps are arranged in a row on the back of the diffuser plate to directly illuminate the liquid crystal panel. The direct type method is mainly used in large liquid crystal display devices requiring high brightness due to its low light uniformity and durability but good light utilization efficiency compared to the edge type method.
이하 본 명세서에서는 직하방식의 백라이트유닛을 채용한 액정표시장치를 실시예로 하여 설명한다.Hereinafter, the liquid crystal display device employing the backlight unit of the direct type is described as an embodiment.
도 1은 종래의 액정표시장치의 일례를 개략적으로 도시한 것으로, 화상을 형성하는 액정패널(110)과, 액정패널(110)의 배면에 평행하게 마련된 확산판(130)과, 확산판(130)을 통해 액정패널(110)로 빛을 조사하는 램프(140)와, 램프(140)의 빛이 모두 액정패널(110)방향으로 향하도록 마련된 반사판(152)과, 램프(140) 및 반사판(152)을 수용하는 바텀샤시(150)와, 확산판(130)을 지지하는 제1미들샤시(121)와, 액정패널(110)을 지지하는 제2미들샤시(122)와, 액정패널(110)의 전면을 커버하는 탑샤시(160)로 구성되어 있다. 그리고, 액정패널(110)의 전후면에는 각각 편광판(111, 112)이 마련되며, 확산판(130)의 전면에는 프리즘시트(131)가 마련된다.FIG. 1 schematically illustrates an example of a conventional liquid crystal display device. The liquid crystal panel 110 that forms an image, a diffusion plate 130 provided in parallel with a rear surface of the liquid crystal panel 110, and a diffusion plate 130 are illustrated in FIG. Lamp 140 for irradiating light to the liquid crystal panel 110 through the light source, the reflector 152 provided so that the light of the lamp 140 all toward the liquid crystal panel 110, the lamp 140 and the reflector ( A bottom chassis 150 accommodating 152, a first middle chassis 121 supporting the diffusion plate 130, a second middle chassis 122 supporting the liquid crystal panel 110, and a liquid crystal panel 110. It is composed of a top chassis 160 to cover the front. The polarizing plates 111 and 112 are provided on the front and rear surfaces of the liquid crystal panel 110, respectively, and the prism sheet 131 is provided on the front surface of the diffusion plate 130.
그러나, 종래의 액정표시장치는, 상기한 바와 같이, 확산판(130)과 액정패널(110)을 지지하기 위해 복수의 미들샤시(121, 122)가 사용되고 있어, 그 구조가 복잡하다는 문제점이 있다. 또한, 샤시는 금속성의 재질이므로, 샤시의 사용이 증가할수록 액정표시장치의 전체적인 중량이 커지며, 액정패널(110)을 지지하는 제2미들샤시(122)와 액정패널(110)을 구동하기 위해 액정패널(110)의 일측에 연결되는 연성인쇄회로(미도시) 사이에 전기절연을 해야 하는 문제점도 있다.However, in the conventional liquid crystal display device, as described above, a plurality of middle chassis 121 and 122 are used to support the diffusion plate 130 and the liquid crystal panel 110, and thus, the structure thereof is complicated. . In addition, since the chassis is made of a metallic material, as the use of the chassis increases, the overall weight of the liquid crystal display increases, and the liquid crystal is driven to drive the second middle chassis 122 and the liquid crystal panel 110 supporting the liquid crystal panel 110. There is also a problem in that electrical insulation is required between flexible printed circuits (not shown) connected to one side of the panel 110.
따라서, 본 발명의 목적은, 몰드프레임을 사용함으로써 액정패널을 간단하게 지지하고, 확산판이 바텀샤시에 안정적으로 지지되며, 바텀샤시에 대한 확산판 및 몰드프레임의 조립성과 바텀샤시의 강성을 향상시킨 액정표시장치를 제공하는 것이다.Accordingly, an object of the present invention is to simplify the support of the liquid crystal panel by using a mold frame, to stably support the diffusion plate in the bottom chassis, and to improve the assemblity of the diffusion plate and the mold frame to the bottom chassis and the rigidity of the bottom chassis. It is to provide a liquid crystal display device.
상기 목적은, 본 발명에 따라, 액정패널과, 상기 액정패널의 배면에 평행하게 마련된 확산판과, 상기 액정패널의 연부를 지지하는 몰드프레임과, 상기 확산판을 통해 상기 액정패널로 빛을 조사하는 램프를 갖는 액정표시장치에 있어서, 상기 확산판의 연부를 지지하는 확산판지지부와, 상기 몰드프레임을 지지하는 몰드지지부와, 상기 확산판지지부와 상기 몰드지지부 사이에 개재되어 상기 확산판과 상기 몰드프레임이 이격 지지되도록 하는 돌출부를 가지는 바텀샤시를 포함하는 것을 특징으로 하는 액정표시장치에 의해 달성된다.According to the present invention, the object is, the liquid crystal panel, a diffusion plate provided in parallel to the back of the liquid crystal panel, a mold frame for supporting the edge of the liquid crystal panel, and irradiated light to the liquid crystal panel through the diffusion plate A liquid crystal display device having a lamp comprising: a diffusion plate support part for supporting an edge of the diffusion plate, a mold support part for supporting the mold frame, and a diffusion plate interposed between the diffusion plate support part and the mold support part. It is achieved by a liquid crystal display device comprising a bottom chassis having a protrusion for allowing the mold frame to be spaced apart from each other.
상기 돌출부는 상기 확산판을 지지하는 면을 기준으로 단면이 대략 역' U '자의 형상을 가지며, 상기 확산판의 연부를 따라 형성된 것이 바람직하다.The protruding portion has a shape of approximately 'U' in cross section with respect to the surface supporting the diffusion plate, and is preferably formed along the edge of the diffusion plate.
여기서, 상기 바텀샤시는 상기 램프를 수용하는 램프수용부와, 상기 램프수용부의 내벽면에 부착되어 일체로 마련된 반사시트를 더 포함하는 것이 바람직하다.The bottom chassis may further include a lamp accommodating part accommodating the lamp and a reflective sheet integrally attached to an inner wall surface of the lamp accommodating part.
이하에서 본 발명의 일실시예에 따른 액정표시장치를 첨부도면을 참조하여 설명하면 다음과 같다.Hereinafter, a liquid crystal display according to an exemplary embodiment of the present invention will be described with reference to the accompanying drawings.
설명에 앞서, 본 명세서에서 도시되는 액정표시장치는 특징을 부각하여 개략적으로 도시하기로 한다.Prior to the description, the liquid crystal display shown in the present specification will be schematically shown with the features highlighted.
본 발명의 일실시예에 따른 액정표시장치는, 도 2 및 도 3에서 도시된 바와 같이, 화상을 형성하는 액정패널(10)과, 액정패널(10)의 일측에 실장되어 액정패널(10)을 구동하는 드라이버 집적회로(미도시)와, 액정패널(10)의 연부를 지지하는 몰드프레임(20)과, 액정패널(10)의 배면에 평행하게 마련된 확산판(30)과, 확산판(30)을 통해 액정패널(10)로 빛을 조사하는 램프유닛(40)과, 램프유닛(40)를 수용하며 확산판(30) 및 몰드프레임(20)을 지지하는 바텀샤시(50)와, 액정패널(10)의 전면을 커버하는 탑샤시(60)를 포함한다.In the liquid crystal display according to the exemplary embodiment of the present invention, as shown in FIGS. 2 and 3, a liquid crystal panel 10 forming an image and a liquid crystal panel 10 mounted on one side of the liquid crystal panel 10 are formed. Driver integrated circuit (not shown) for driving the device, a mold frame 20 supporting the edge of the liquid crystal panel 10, a diffusion plate 30 provided in parallel to the rear surface of the liquid crystal panel 10, and a diffusion plate ( A lamp unit 40 for irradiating light to the liquid crystal panel 10 through the 30, a bottom chassis 50 for receiving the lamp unit 40 and supporting the diffusion plate 30 and the mold frame 20, The top chassis 60 covers the entire surface of the liquid crystal panel 10.
액정패널(10)은 화소단위를 이루는 액정 셀들이 매트릭스 형태로 배열되어 있으며, 드라이버 집적회로(미도시)에서 전달되는 화상신호정보에 따라 액정 셀들의 광투과율을 조절함으로써 화상을 형성하게 된다. 또한, 액정패널(10)의 전후면에는 전면편광판(11) 및 후면편광판(12)이 서로 교차편광 되도록 마련된다. 후면편광판(12)은 액정패널(10)에 입사되는 빛을 편광하며, 전면편광판(11)은 검광자의 역할을 하게 된다.The liquid crystal panel 10 is arranged in a matrix form of the liquid crystal cells forming a pixel unit, and forms an image by adjusting the light transmittance of the liquid crystal cells according to the image signal information transmitted from the driver integrated circuit (not shown). In addition, the front polarizing plate 11 and the rear polarizing plate 12 are provided on the front and rear surfaces of the liquid crystal panel 10 so as to cross polarize with each other. The rear polarizer 12 polarizes the light incident on the liquid crystal panel 10, and the front polarizer 11 serves as an analyzer.
확산판(30)은 램프유닛(40)에서 조사된 빛을 확산하여 빛의 균일성을 향상시키는 역할을 하며, 열가소성 폴리머 재료를 기본으로 하고 양면에 작은 유리구슬 알갱이들이 혼합되어 있다. 또한, 확산판(30)의 전면에는 프리즘시트(31)가 마련된다. 프리즘시트(31)는 띠 모양의 마이크로 프리즘이 시트상부에 형성된 것으로, 확산판(30)를 통과한 빛이 수직하게 진행될 수 있도록 하여 휘도를 향상시킨다.The diffusion plate 30 serves to diffuse the light irradiated from the lamp unit 40 to improve the uniformity of the light, and the glass beads are mixed on both sides of the thermoplastic polymer material. In addition, a prism sheet 31 is provided on the front surface of the diffusion plate 30. The prism sheet 31 is a strip-shaped micro-prism formed on the sheet, and the light passing through the diffusion plate 30 can proceed vertically to improve the brightness.
몰드프레임(20)은 액정패널(10)의 연부를 따라 형성되며 대략 사각의 형상을 가지고, 액정패널(10)을 확산판(30)으로부터 이격시켜 지지한다. 이 몰드프레임(20)은 플라스틱재질을 포함하여 이루어지며, 금속재질로 형성된 샤시에 비해 중량이 작아 액정표시장치의 전체적인 중량을 감소시킬 수 있게 된다.The mold frame 20 is formed along the edge of the liquid crystal panel 10 and has a substantially rectangular shape to support the liquid crystal panel 10 spaced apart from the diffusion plate 30. The mold frame 20 is made of a plastic material, and the weight of the mold frame 20 is smaller than that of a chassis formed of a metal material, thereby reducing the overall weight of the liquid crystal display.
바텀샤시(50)는 램프유닛(40)을 수용하는 램프수용부(51)와, 확산판(30)의 연부를 지지하는 확산판지지부(53)와, 몰드프레임(20)을 지지하는 몰드지지부(55)와, 확산판지지부(53)와 몰드지지부(55) 사이에 개재되는 돌출부(57)를 포함한다. 그리고, 바텀샤시(50)는 램프수용부(51)의 내벽면에 부착되어 일체로 마련된 반사시트(52)를 더 포함하는 것이 바람직하다. 이 반사시트(52)는 램프유닛(40)에서 발산되는 빛이 모두 액정패널(10)로 향하게 하여 빛의 이용효율을 향상시키고 휘도를 높이는 역할을 한다. 또한, 반사시트(52)가 램프수용부(51)의 내벽면에 밀착되어 일체로 마련됨으로써, 반사시트(52)를 지지하기 위한 별도의 구조가 필요 없으며, 빛의 반사효율을 향상시킬 수 있다.The bottom chassis 50 includes a lamp accommodating part 51 for accommodating the lamp unit 40, a diffusion plate support part 53 for supporting the edge of the diffusion plate 30, and a mold support part for supporting the mold frame 20. 55 and a protrusion 57 interposed between the diffusion plate support 53 and the mold support 55. The bottom chassis 50 may further include a reflection sheet 52 attached to the inner wall of the lamp accommodating part 51 and integrally provided. The reflective sheet 52 serves to direct all the light emitted from the lamp unit 40 to the liquid crystal panel 10 so as to improve light utilization efficiency and increase luminance. In addition, since the reflective sheet 52 is provided in close contact with the inner wall surface of the lamp accommodating portion 51 and is integrally formed, a separate structure for supporting the reflective sheet 52 is not required, and the reflection efficiency of light may be improved. .
램프수용부(51)는 램프유닛(40)에서 조사된 빛이 충분히 확산된 후에 확산판(30)에 입사될 수 있도록 확산판(30)으로부터 소정의 이격거리를 두고 램프유닛(40)을 수용한다.The lamp accommodating part 51 accommodates the lamp unit 40 at a predetermined distance from the diffuser plate 30 so that the light irradiated from the lamp unit 40 can be incident on the diffuser plate 30 after being sufficiently diffused. do.
확산판지지부(53)는 램프수용부(51)의 측벽을 형성하는 사면의 단부로부터 확산판(30)과 평행하게 연장 형성되며, 몰드지지부(55)는 확산판지지부(53)의 측변을 따라 외측에 형성된다. 몰드지지부(55)는 스크류(미도시) 및 접착테이프(미도시) 등과 같은 체결수단에 의해 몰드프레임(20)과 결합될 수 있다.The diffusion plate support part 53 extends in parallel with the diffusion plate 30 from the end of the slope which forms the side wall of the lamp receiving part 51, and the mold support part 55 is along the side of the diffusion plate support part 53. It is formed on the outside. The mold support 55 may be coupled to the mold frame 20 by fastening means such as a screw (not shown) and an adhesive tape (not shown).
돌출부(57)는 확산판지지부(53)와 몰드지지부(55) 사이에서 확산판(30)의 연부를 따라 형성되며, 확산판(30)의 단부로부터 이격거리를 두고 몰드프레임(20)이 지지되도록 한다. 이 돌출부(57)는 확산판(30)을 지지하는 지지면을 기준으로 단면이 대략 역' U '자의 형상을 가지는 것이 바람직하나, 이러한 실시예에 한정되지 않으며 다양한 형상으로 형성될 수 있음은 물론이다. 그리고, 돌출부(57)는 확산판(30)의 측면을 가이드하여 확산판(30)이 확산판지지부(53)에서 이탈되지 못하도록 한다.The protrusion 57 is formed along the edge of the diffuser plate 30 between the diffuser plate support 53 and the mold support 55, and is supported by the mold frame 20 at a distance from an end of the diffuser plate 30. Be sure to The protrusion 57 preferably has an inverted 'U' shape in cross section based on the support surface for supporting the diffusion plate 30, but is not limited to this embodiment and may be formed in various shapes. to be. The protrusion 57 guides the side surface of the diffuser plate 30 to prevent the diffuser plate 30 from being separated from the diffuser plate support part 53.
이에, 몰드프레임(20)과 확산판(30)이 각각 지지되는 위치가 분명해져 액정표시장치의 조립과정에서 조립성을 향상시킬 수 있다. 또한, 액정패널(10), 확산판(30) 및 몰드프레임(20)의 하중을 모두 받게 되는 바텀샤시(50)는, 전술한 바와 같이, 형상의 일부가 단면이 대략 역' U '자의 형상을 갖도록 형성함으로써, 강성을 향상시킬 수 있다. As a result, the positions where the mold frame 20 and the diffusion plate 30 are respectively supported become clear, thereby improving the assemblability in the assembling process of the liquid crystal display. In addition, as described above, the bottom chassis 50, which receives the loads of the liquid crystal panel 10, the diffusion plate 30, and the mold frame 20, is partially inverted in the shape of a 'U' shaped cross section. By forming so as to have, the rigidity can be improved.
탑샤시(60)는 화상을 형성하는 액정패널(10)의 유효면이 외부로 노출되도록 하는 표시창(61)과 몰드프레임(20) 및 바텀샤시(50)를 수용 지지하는 본체부(62)를 갖는다.The top chassis 60 includes a display window 61 for exposing an effective surface of the liquid crystal panel 10 that forms an image to the outside, and a main body 62 for housing and supporting the mold frame 20 and the bottom chassis 50. Have
이러한 구성에 의하여, 본 발명의 일실시예에 따른 액정표시장치의 조립과정에 대해 도 3을 참조하여 설명하면, 먼저 반시시트(52)가 부착된 바텀샤시(50)의 램프수용부(51)에 램프유닛(40)를 수용시키고, 바텀샤시(50)의 확산판지지부(53)에 확산판(30)을 배치한다. 몰드프레임(20)을 뱌텀샤시(50)의 몰드지지부(55)에 배치하고 스크류(미도시) 및 접착테이프(미도시) 등의 체결수단으로 결합한다. 이때, 확산판지지부(53)와 몰드지지부(55) 사이에 돌출부(57)가 개재되어 있으므로, 확산판(30) 및 몰드프레임(20)이 지지되는 위치가 분명해져 조립성이 향상된다. 또한, 몰드프레임(20)을 몰드지지부(55)에 결합시키는 과정에서 발생될 수 있는 확산판(30)의 손상을 미연에 방지할 수 있게 된다. 몰드프레임(20)에 액정패널(10)을 배치하고 탑샤시(60)로 액정패널(10)을 커버한다.With this configuration, the assembly process of the liquid crystal display according to the exemplary embodiment of the present invention will be described with reference to FIG. 3. First, the lamp accommodating part 51 of the bottom chassis 50 to which the half chassis sheet 52 is attached is described. The lamp unit 40 is housed in the chamber, and the diffusion plate 30 is disposed on the diffusion plate support part 53 of the bottom chassis 50. The mold frame 20 is disposed on the mold support part 55 of the bottom chassis 50 and coupled with a fastening means such as a screw (not shown) and an adhesive tape (not shown). At this time, since the protrusion part 57 is interposed between the diffusion plate support part 53 and the mold support part 55, the position where the diffusion plate 30 and the mold frame 20 are supported becomes clear, and assembling property is improved. In addition, it is possible to prevent damage to the diffusion plate 30 that may occur in the process of coupling the mold frame 20 to the mold support 55. The liquid crystal panel 10 is disposed on the mold frame 20, and the liquid crystal panel 10 is covered by the top chassis 60.
이에 따라, 본 발명의 일실시예에 따른 액정표시장치는 몰드프레임(20)을 사용하여 액정패널(10)을 간단하게 지지할 수 있으며, 확산판(30)을 안정적으로 지지하고, 바텀샤시(50)에 대한 확산판(30) 및 몰드프레임(20)의 조립성과 바텀샤시(50)의 강성을 향상시킬 수 있게 된다.Accordingly, the liquid crystal display according to the exemplary embodiment of the present invention can simply support the liquid crystal panel 10 by using the mold frame 20, stably support the diffusion plate 30, and bottom chassis ( It is possible to improve the assembly of the diffusion plate 30 and the mold frame 20 with respect to 50) and the rigidity of the bottom chassis 50.
또한, 바텀샤시(50)의 램프수용부(51)에 반사시트(52)를 밀착시켜 일체로 마련함으로써, 빛의 이용효율을 보다 높일 수 있게 된다.In addition, by providing the reflective sheet 52 in close contact with the lamp accommodating portion 51 of the bottom chassis 50, the light utilization efficiency can be further increased.
이상 설명한 바와 같이, 본 발명에 따르면, 몰드프레임을 사용함으로써 액정패널을 간단하게 지지하고, 확산판이 바텀샤시에 안정적으로 지지되고, 바텀샤시에 대한 확산판 및 몰드프레임의 조립성과 바텀샤시의 강성을 향상시킨 액정표시장치를 제공할 수 있다. As described above, according to the present invention, by using the mold frame, the liquid crystal panel is simply supported, the diffuser plate is stably supported on the bottom chassis, and the assemblability of the diffuser plate and the mold frame to the bottom chassis and the rigidity of the bottom chassis are achieved. An improved liquid crystal display device can be provided.
도 1은 종래의 액정표시장치의 요부 단면도,1 is a cross-sectional view of main parts of a conventional liquid crystal display device;
도 2는 본 발명의 일실시예에 따른 액정표시장치의 요부 단면도,2 is a cross-sectional view of main parts of a liquid crystal display according to an exemplary embodiment of the present invention;
도 3은 본 발명의 일실시예에 따른 액정표시장치의 분해 사시도이다.3 is an exploded perspective view of a liquid crystal display according to an exemplary embodiment of the present invention.
* 도면의 주요 부분에 대한 부호의 설명* Explanation of symbols for the main parts of the drawings
10 : 액정패널 11 : 전면평관판10: liquid crystal panel 11: front flat plate
12 : 후면편광판 20 : 몰드프레임12: rear polarizer 20: mold frame
30 : 확산판 31 : 프리즘시트30: diffusion plate 31: prism sheet
40 : 램프유닛 50 : 바텀샤시40: lamp unit 50: bottom chassis
51 : 램프수용부 52 : 반사시트51: lamp housing 52: reflection sheet
53 : 확산판지지부 55 : 몰드지지부53 diffusion plate support part 55 mold support part
57 : 돌출부 60 : 탑샤시57: protrusion 60: top chassis
61 : 표시창 62 : 본체부61: display window 62: the main body
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| KR100732998B1 (en) * | 2006-10-31 | 2007-06-28 | 진우덕 | Backlight assembly |
| KR101358053B1 (en) * | 2011-10-10 | 2014-02-04 | 이학연 | Bottom Chassis Manufacturing Method for LED TV and Bottom Chassis Using The Same |
| US8908119B2 (en) | 2010-03-24 | 2014-12-09 | Samsung Display Co., Ltd. | Mold frame and liquid crystal display device using the same |
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| KR100604678B1 (en) * | 1999-05-13 | 2006-07-26 | 삼성전자주식회사 | Direct LCD System |
| KR100659933B1 (en) * | 1999-12-01 | 2006-12-21 | 삼성전자주식회사 | Direct LCD System |
| KR100868002B1 (en) * | 2002-07-10 | 2008-11-11 | 삼성전자주식회사 | Backlight assembly |
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| KR100732998B1 (en) * | 2006-10-31 | 2007-06-28 | 진우덕 | Backlight assembly |
| US8908119B2 (en) | 2010-03-24 | 2014-12-09 | Samsung Display Co., Ltd. | Mold frame and liquid crystal display device using the same |
| KR101358053B1 (en) * | 2011-10-10 | 2014-02-04 | 이학연 | Bottom Chassis Manufacturing Method for LED TV and Bottom Chassis Using The Same |
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