KR101798653B1 - Liquid Crystal Display Device - Google Patents

Liquid Crystal Display Device Download PDF

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Publication number
KR101798653B1
KR101798653B1 KR1020100139280A KR20100139280A KR101798653B1 KR 101798653 B1 KR101798653 B1 KR 101798653B1 KR 1020100139280 A KR1020100139280 A KR 1020100139280A KR 20100139280 A KR20100139280 A KR 20100139280A KR 101798653 B1 KR101798653 B1 KR 101798653B1
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South Korea
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liquid crystal
seating
panel
crystal panel
guide panel
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KR1020100139280A
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Korean (ko)
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KR20120077352A (en
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신성진
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엘지디스플레이 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
    • 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
    • G02B6/003—Lens or lenticular sheet or layer
    • 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
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
    • G02B6/0053—Prismatic sheet or layer; Brightness enhancement element, sheet or layer
    • 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
    • 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
    • G02F1/133608—Direct backlight including particular frames or supporting means
    • 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
    • G02F1/133611—Direct backlight including means for improving the brightness uniformity
    • 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
    • G02F1/1343—Electrodes
    • G02F1/134309—Electrodes characterised by their geometrical arrangement
    • G02F1/134363—Electrodes characterised by their geometrical arrangement for applying an electric field parallel to the substrate, i.e. in-plane switching [IPS]
    • 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
    • G02F1/1343—Electrodes
    • G02F1/134309—Electrodes characterised by their geometrical arrangement
    • G02F1/134372—Electrodes characterised by their geometrical arrangement for fringe field switching [FFS] where the common electrode is not patterned

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Geometry (AREA)
  • Liquid Crystal (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Planar Illumination Modules (AREA)

Abstract

본 발명의 실시예는, 커버버텀; 커버버텀의 일면에 안착된 백라이트유닛; 커버버텀의 일면에 안착되고 커버버텀의 외곽영역에 대응되는 프레임 형상을 가지며 커버버텀의 일면으로부터 단차를 두고 마련된 안착부를 갖는 가이드패널; 가이드패널의 안착부에 안착된 액정패널을 포함하되, 가이드패널의 안착부는, 액정패널이 안착되는 면을 갖는 안착면과, 안착면으로부터 기울기를 갖는 경사면을 포함하는 액정표시장치를 제공한다.An embodiment of the present invention relates to an electronic device comprising: a cover bottom; A backlight unit mounted on one surface of the cover bottom; A guide panel which is seated on one surface of the cover bottom and has a frame shape corresponding to an outer area of the cover bottom and has a seating portion provided with a step from one surface of the cover bottom; The liquid crystal panel including a liquid crystal panel mounted on a seating portion of the guide panel, wherein the seating portion of the guide panel includes a seating surface having a surface on which the liquid crystal panel is placed and a slope surface having a slope from the seating surface.

Description

액정표시장치{Liquid Crystal Display Device}[0001] The present invention relates to a liquid crystal display device,

본 발명의 실시예는 액정표시장치에 관한 것이다.An embodiment of the present invention relates to a liquid crystal display device.

정보화 기술이 발달함에 따라 사용자와 정보간의 연결 매체인 표시장치의 시장이 커지고 있다. 이에 따라, 액정 표시장치(Liquid Crystal Display: LCD), 유기전계 발광부(Organic Light Emitting Diodes: OLED) 및 플라즈마 디스플레이 패널(Plasma Display Panel: PDP) 등과 같은 평판 표시장치(Flat Panel Display: FPD)의 사용이 증가하고 있다. 그 중 고해상도를 구현할 수 있고 소형화뿐만 아니라 대형화가 가능한 액정 표시장치가 널리 사용되고 있다.As the information technology is developed, the market of display devices, which is a connection medium between users and information, is getting larger. Accordingly, a flat panel display (FPD) such as a liquid crystal display (LCD), an organic light emitting diode (OLED), and a plasma display panel (PDP) Usage is increasing. Among them, liquid crystal display devices capable of realizing high resolution and capable of not only miniaturization but also enlargement are widely used.

액정표시장치는 수광형 표시장치로 분류된다. 이러한 액정표시장치는 액정패널의 하부에 위치하는 백라이트유닛으로부터 광원을 제공받아 영상을 표현할 수 있다.A liquid crystal display device is classified into a light receiving display device. Such a liquid crystal display device can display an image by receiving a light source from a backlight unit located under the liquid crystal panel.

백라이트유닛에는 액정패널에 효율적인 광을 제공하기 위해 광원, 반사판, 도광판, 가이드패널 및 광학부재 등이 포함된다. 여기서, 도광판은 광원에 의해 측면으로 유입되는 측면 광원을 면 광원으로 전환하여 액정패널에 제공하는 광학부품이다. 그리고 가이드패널은 액정패널의 틀이 되는 외곽 구조물로서 액정패널 및 도광판 그리고 각종 광학부재 등을 체결 혹은 부착하는 역할과 측면으로 새는 광을 차단하는 역할을 한다.The backlight unit includes a light source, a reflection plate, a light guide plate, a guide panel, and an optical member to provide efficient light to the liquid crystal panel. Here, the light guide plate is an optical component that converts a side light source, which is introduced into the side surface by a light source, into a planar light source and provides it to the liquid crystal panel. The guide panel serves as a frame of the liquid crystal panel, and acts as a fastening or attaching member of a liquid crystal panel, a light guide plate, various optical members, and the like.

그런데, 종래 액정표시장치에 사용되는 가이드패널은 액정패널을 모듈로 제작할 때 다음과 같은 문제를 유발하였다. 먼저, 액정패널이 안착되는 가이드 패널의 안착부 폭이 넓기 때문에 평탄도 관리가 어렵고 액정패널 안착시 평탄도 저하에 따른 블랙 균일도(Black Uniformity) 불량(다르게 설명하면 빛샘 불량)을 유발하였다. 이와 더불어, 액정패널이 양면 차광 테이프에 의해 가이드 패널의 넓은 안착부에 부착되므로 리워크(Rework) 작업시 액정패널의 손상 및 백라이트유닛의 훼손을 유발하였다.However, the guide panel used in the conventional liquid crystal display device has the following problems when the liquid crystal panel is manufactured as a module. First, since the width of the seating portion of the guide panel on which the liquid crystal panel is seated is wide, it is difficult to control the flatness, and black uniformity (poor light shielding) is caused by flattening of the liquid crystal panel. In addition, since the liquid crystal panel is attached to the wide mounting portion of the guide panel by the double-sided shielding tape, it damages the liquid crystal panel and damages the backlight unit during the rework operation.

그러므로, 종래 액정표시장치는 액정표시모듈 제작시 위와 같은 문제가 개선되도록 가이드패널의 구조적인 개선이 요구된다.
Therefore, in the conventional liquid crystal display device, it is required to improve the structure of the guide panel so as to improve the above problems when manufacturing the liquid crystal display module.

상술한 배경기술의 문제점을 해결하기 위한 본 발명의 실시예는, 양면 차광 테이프의 부착 폭을 축소할 수 있고, 블랙 균일도 및 리워크 작업성을 향상시킬 수 있으며, 액정패널과의 간섭 부분을 최소화하여 블랙 균일도 향상에 따른 외관 개선효과를 더할 수 있는 액정표시장치를 제공하는 것이다.
The embodiments of the present invention for solving the problems of the background art described above can reduce the attachment width of the double-sided shielding tape, improve the black uniformity and rework workability, minimize the interference with the liquid crystal panel And to provide a liquid crystal display device capable of adding an appearance improving effect as an improvement in black uniformity.

상술한 과제 해결 수단으로 본 발명의 실시예는, 커버버텀; 커버버텀의 일면에 안착된 백라이트유닛; 커버버텀의 일면에 안착되고 커버버텀의 외곽영역에 대응되는 프레임 형상을 가지며 커버버텀의 일면으로부터 단차를 두고 마련된 안착부를 갖는 가이드패널; 가이드패널의 안착부에 안착된 액정패널을 포함하되, 가이드패널의 안착부는, 액정패널이 안착되는 면을 갖는 안착면과, 안착면으로부터 기울기를 갖는 경사면을 포함하는 액정표시장치를 제공한다.According to an aspect of the present invention, there is provided an electronic device comprising: a cover bottom; A backlight unit mounted on one surface of the cover bottom; A guide panel which is seated on one surface of the cover bottom and has a frame shape corresponding to an outer area of the cover bottom and has a seating portion provided with a step from one surface of the cover bottom; The liquid crystal panel including a liquid crystal panel mounted on a seating portion of the guide panel, wherein the seating portion of the guide panel includes a seating surface having a surface on which the liquid crystal panel is placed and a slope surface having a slope from the seating surface.

가이드패널은, 적어도 하나의 영역에 안착면과 경사면이 포함되도록 형성될 수 있다.The guide panel may be formed to include a seating surface and an inclined surface in at least one area.

가이드패널은, 백라이트유닛에 포함된 발광부가 설치되는 영역을 제외한 모든 영역에 안착면과 경사면이 포함되도록 형성될 수 있다.The guide panel may be formed so that the seating surface and the inclined surface are included in all areas except the area where the light emitting part included in the backlight unit is installed.

안착면과 경사면의 경계선은, 액정패널의 하부에 부착된 하부편광판의 외곽보다 내측에 위치할 수 있다.The boundary line between the seating surface and the inclined surface may be located inside the outer periphery of the lower polarizer plate attached to the lower portion of the liquid crystal panel.

가이드패널은, 백라이트유닛에 포함된 도광판의 일부를 덮도록 안착부의 측면으로부터 내측으로 인입된 인입부를 포함할 수 있다.The guide panel may include an inlet portion drawn inwardly from a side surface of the seat portion to cover a part of the light guide plate included in the backlight unit.

액정패널은 트랜지스터기판과 컬러필터기판에 각각 부착된 하부편광판과 상부 편광판을 포함하고, 액정패널은, 하부편광판에 부착된 양면 차광테이프에 의해 안착부의 안착면에 부착될 수 있다.
The liquid crystal panel includes a lower polarizer plate and an upper polarizer plate attached to the transistor substrate and the color filter substrate, respectively, and the liquid crystal panel can be attached to the seating surface of the seat by the double-sided shielding tape attached to the lower polarizer plate.

본 발명의 실시예는, 가이드패널의 안착부에 테이퍼(Taper) 형상을 부여하여 양면 차광 테이프의 부착 폭을 축소할 수 있고, 블랙 균일도 및 리워크 작업성을 향상시킬 수 있으며, 액정패널과의 간섭 부분을 최소화하여 블랙 균일도 향상에 따른 외관 개선효과를 더할 수 있는 액정표시장치를 제공하는 효과가 있다.
The embodiment of the present invention can reduce the attachment width of the both-side light-shielding tape by providing a tapered shape to the seating portion of the guide panel, improve the black uniformity and rework workability, There is an effect of providing a liquid crystal display device capable of minimizing an interference portion and adding an appearance improving effect according to an improvement in black uniformity.

도 1은 본 발명의 일 실시예에 따른 액정표시장치의 단면도.
도 2는 본 발명의 변형된 실시예에 따른 액정표시장치의 단면도.
도 3 및 도 4는 실시예에 따른 가이드패널의 안착부가 형성된 영역을 설명하기 위한 도면.
도 5는 종래 가이드패널과 실시예의 가이드패널의 비교도.
도 6은 실시예에 따른 가이드패널 적용에 의한 구조적 이점에 대해 설명하기 위한 도면.1 is a sectional view of a liquid crystal display device according to an embodiment of the present invention;
2 is a cross-sectional view of a liquid crystal display according to a modified embodiment of the present invention.
FIGS. 3 and 4 are views for explaining a region in which a seating portion of a guide panel according to an embodiment is formed; FIG.
5 is a comparative view of a conventional guide panel and a guide panel of the embodiment;
6 is a view for explaining a structural advantage of applying a guide panel according to an embodiment;

이하, 본 발명의 실시를 위한 구체적인 내용을 첨부된 도면을 참조하여 설명한다.DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 1은 본 발명의 일 실시예에 따른 액정표시장치의 단면도이고, 도 2는 본 발명의 변형된 실시예에 따른 액정표시장치의 단면도이며, 도 3 및 도 4는 실시예에 따른 가이드패널의 안착부가 형성된 영역을 설명하기 위한 도면이다.2 is a cross-sectional view of a liquid crystal display device according to a modified embodiment of the present invention, and FIGS. 3 and 4 are cross-sectional views of a guide panel according to an embodiment of the present invention. Fig. 8 is a view for explaining an area where a seat part is formed.

도 1 내지 도 4에 도시된 바와 같이, 본 발명의 제1실시예에 따른 액정표시장치에는 액정패널(110), 백라이트유닛(140), 커버버텀(150), 가이드패널(160) 및 커버탑(170)이 포함된다.1 to 4, the liquid crystal display according to the first embodiment of the present invention includes a liquid crystal panel 110, a backlight unit 140, a cover bottom 150, a guide panel 160, (170).

액정패널(110)은 가이드패널(160)의 안착부(161, 162)에 포함된 안착면(161)에 안착된다. 액정패널(110)에는 트랜지스터기판(110a)과 컬러필터기판(110b) 사이에 형성된 액정층을 포함하는 서브 픽셀들이 포함된다. 트랜지스터기판(110a)과 컬러필터기판(110b)에는 게이트라인으로부터 공급된 게이트신호에 의해 구동하는 스위칭 트랜지스터와, 스위칭 트랜지스터의 스위칭 동작에 의해 데이터라인으로부터 공급된 데이터전압을 저장하는 스토리지 커패시터와, 스위칭 트랜지스터로부터 픽셀전압을 제공받는 픽셀전극과, 공통전압라인으로부터 공통전압을 공급받는 공통전극과, 픽셀전극과 공통전극에 의해 형성된 전계에 의해 구동하는 액정과, 액정의 구동에 의해 출사된 광을 적색, 녹색 및 청색 등으로 변환하는 컬러필터와, 컬러필터 간의 혼색을 방지하는 블랙매트릭스 등이 포함된다. 액정패널(110)은 TN(Twisted Nematic) 모드, VA(Vertical Alignment) 모드, IPS(In Plane Switching) 모드, FFS(Fringe Field Switching) 모드, ECB(Electrically Controlled Birefringence) 모드 등으로 동작하도록 구현된다. 액정패널(110)을 구성하는 트랜지스터기판(11a)과 컬러필터기판(110b)에는 백라이트유닛(140)을 통해 입사된 광의 편광 특성을 변환하는 하부편광판(111)과 상부편광판(115)이 각각 부착된다. 이와 더불어, 액정패널(110)의 상부편광판(115)의 외곽영역에는 빛샘을 방지하는 등의 목적을 갖는 블랙패드(120)가 부착된다.The liquid crystal panel 110 is seated on the seating surface 161 included in the seating portions 161 and 162 of the guide panel 160. [ The liquid crystal panel 110 includes subpixels including a liquid crystal layer formed between the transistor substrate 110a and the color filter substrate 110b. The transistor substrate 110a and the color filter substrate 110b are provided with a switching transistor driven by a gate signal supplied from a gate line, a storage capacitor for storing a data voltage supplied from the data line by the switching operation of the switching transistor, A liquid crystal which is driven by an electric field formed by the pixel electrode and the common electrode, and a liquid crystal which is driven by the liquid crystal, , Green, and blue, and a black matrix for preventing color mixing between color filters. The liquid crystal panel 110 is implemented to operate in a TN (Twisted Nematic) mode, VA (Vertical Alignment) mode, IPS (In Plane Switching) mode, FFS (Fringe Field Switching) mode, ECB (Electrically Controlled Birefringence) A lower polarizer plate 111 and an upper polarizer plate 115 are disposed on the transistor substrate 11a and the color filter substrate 110b constituting the liquid crystal panel 110 to convert the polarization characteristics of light incident through the backlight unit 140 do. In addition, a black pad 120 having a purpose of preventing light leakage is attached to an outer area of the upper polarizer 115 of the liquid crystal panel 110.

커버버텀(150)의 일면에는 백라이트유닛(140)과 더불어 가이드패널(160)이 안착된다. 커버버텀(150)은 커버탑(170)과 함께 백라이트유닛(140)과 액정패널(110)을 수납하는 기구물이다.On one side of the cover bottom 150, a guide panel 160 is seated together with a backlight unit 140. The cover bottom 150 is a mechanism for accommodating the backlight unit 140 and the liquid crystal panel 110 together with the cover top 170.

커버버텀(150)의 일면에 안착된 백라이트유닛(140)에는 반사판(141), 도광판(142), 보호필름(143), 제1광학시트(144) 및 제2광학시트(145)가 포함된다. 반사판(141)은 도광판(142)으로 입사된 면광원을 액정패널(110)이 위치하는 상부 방향으로 반사시키는 역할을 한다. 도광판(142)은 발광부에 의해 생성된 점광원을 면광원으로 전환하여 액정패널(110)이 위치하는 상부 방향으로 출사시키는 역할을 한다. 보호필름(143)은 도광판(142) 상에 배치되는 시트들(144, 145)로부터 도광판(142)을 보호하는 역할을 한다. 제1광학시트(144) 및 제2광학시트(145)는 프리즘시트, 렌티큘라렌즈시트, 마이크로렌즈시트 및 이들 중 적어도 하나로 구성된 복합시트 중 어느 하나의 형상으로 각각 구성될 수 있으나 이에 한정되지 않는다.The backlight unit 140 mounted on one surface of the cover bottom 150 includes a reflection plate 141, a light guide plate 142, a protective film 143, a first optical sheet 144, and a second optical sheet 145 . The reflection plate 141 reflects the surface light source incident on the light guide plate 142 toward the upper direction where the liquid crystal panel 110 is positioned. The light guide plate 142 converts the point light source generated by the light emitting unit into a surface light source and outputs the light to the upper direction in which the liquid crystal panel 110 is located. The protective film 143 protects the light guide plate 142 from the sheets 144 and 145 disposed on the light guide plate 142. The first optical sheet 144 and the second optical sheet 145 may be formed in any one of a prism sheet, a lenticular sheet, a micro-lens sheet, and a composite sheet composed of at least one of them, but are not limited thereto .

가이드패널(160)은 도 1과 같이 커버버텀(150)의 일면에 안착되고 커버버텀(150)의 외곽영역에 대응되는 프레임 형상을 가지며 커버버텀(150)의 일면으로부터 단차를 두고 마련된 안착부(161, 162)를 갖는다. 가이드패널(160)의 안착부(161, 162)에는 액정패널(110)이 안착되는 면을 갖는 안착면(161)과, 안착면(161)으로부터 기울기를 갖는 경사면(162)이 포함된다.1, a guide panel 160 is mounted on one surface of a cover bottom 150 and has a frame shape corresponding to an outer area of the cover bottom 150, 161 and 162, respectively. The seating portions 161 and 162 of the guide panel 160 include a seating surface 161 having a surface on which the liquid crystal panel 110 is seated and an inclined surface 162 having a slope from the seating surface 161.

또한, 가이드패널(160)은 도 2와 같이 커버버텀(150)의 일면으로부터 단차를 두고 마련된 안착부(161, 162)와 더불어 백라이트유닛(140)에 포함된 도광판(142)의 일부를 덮도록 안착부(161, 162)의 측면으로부터 내측으로 인입된 인입부(163)를 갖는다. 도 2의 가이드패널(160)은 도광판(142), 보호필름(143) 및 시트들(144, 145)에 대한 귀부 적용을 위한 마진을 갖는 구조이다.2, the guide panel 160 may be configured to cover a part of the light guide plate 142 included in the backlight unit 140, as well as the seating portions 161 and 162 provided with a step from one surface of the cover bottom 150 And an inlet portion 163 drawn inwardly from the side surfaces of the seating portions 161 and 162. The guide panel 160 shown in Fig. 2 is a structure having a margin for applying a nail to the light guide plate 142, the protective film 143, and the sheets 144 and 145.

위와 같은 구조를 갖는 가이드패널(160)은 적어도 하나의 영역에 안착면(161)과 경사면(162)이 포함되도록 형성된다.The guide panel 160 having the above structure is formed to include the seating surface 161 and the inclined surface 162 in at least one area.

가이드패널(160)은 도 3 및 도 4와 같이 백라이트유닛(140)에 포함된 발광부(LED)가 설치되는 영역을 제외한 모든 영역에 안착면(161)과 경사면(162)이 포함되도록 형성될 수 있다. 여기서, 도 3은 발광부(LED)가 일측에 설치되는 구조를 나타내고, 도 4는 발광부(LED)가 일측과 타측에 설치되는 구조를 나타낸다.
3 and 4, the guide panel 160 is formed to include the seating surface 161 and the inclined surface 162 in all areas except the area where the light emitting unit (LED) included in the backlight unit 140 is installed . Here, FIG. 3 shows a structure in which a light emitting portion (LED) is installed on one side, and FIG. 4 shows a structure in which a light emitting portion (LED) is installed on one side and the other side.

실시예에 따른 가이드패널(160)의 구조에 대한 이해를 돕기 위해 종래 가이드패널과 실시예의 가이드패널에 대한 비교도를 참조하여 설명하면 다음과 같다.To facilitate understanding of the structure of the guide panel 160 according to the embodiment, the conventional guide panel and the guide panel of the embodiment will be described with reference to comparative drawings.

도 5는 종래 가이드패널과 실시예의 가이드패널의 비교도이다.5 is a comparative view of a conventional guide panel and a guide panel of the embodiment.

도 3의 (a)와 같이 종래의 가이드패널(160)은 액정패널(110)이 안착되는 안착부(161)의 전 영역이 평평한 면으로 형성되었지만, 도 3의 (b)와 같이 실시예의 가이드패널(160)은 액정패널(110)이 안착되는 안착부(161, 162)가 안착면(161)과 경사면(162)으로 구분되어 있다.3 (a), the conventional guide panel 160 is formed as a flat surface over the entire area of the seating portion 161 on which the liquid crystal panel 110 is seated. However, as shown in FIG. 3 (b) The panel 160 is divided into a seating surface 161 and an inclined surface 162 on which the liquid crystal panel 110 is seated.

실시예에 따른 가이드패널(160)의 구조에 의한 구조적 이점에 대해 설명하면 다음과 같다.Structural advantages of the structure of the guide panel 160 according to the embodiment will be described as follows.

도 6은 실시예에 따른 가이드패널 적용에 의한 구조적 이점에 대해 설명하기 위한 도면이다.6 is a view for explaining a structural advantage of applying the guide panel according to the embodiment.

도 1 내지 도 6에 도시된 바와 같이, 실시예의 가이드패널(160)은 액정패널(110)이 실질적으로 안착되는 안착면(161)의 폭(W1)을 전체 안착부(161, 162)의 폭(W2) 대비 줄일 수 있게 되므로 가이드패널(160)이 액정패널(110)에 주는 간섭의 최소화와 더불어 평탄도 관리(평탄도 관리의 폭은 대략 0.25mm)의 용이성을 부여할 수 있게 된다. 즉, 가이드패널(160)은 구조적 평탄도 향상에 따른 블랙 균일도(Black Uniformity) 향상 효과를 부여할 수 있게 된다. 여기서, 가이드패널(160)의 경우, 도 1 및 도 2의 도면에서도 알 수 있듯이 안착면(161)과 경사면(162)의 경계선이 액정패널(110)의 하부에 부착된 하부편광판(111)의 외곽보다 내측에 위치하도록 형성될 수 있다.The width W1 of the seating surface 161 on which the liquid crystal panel 110 is substantially seated is smaller than the width W1 of the entire seating portions 161 and 162 It is possible to minimize the interference of the guide panel 160 with respect to the liquid crystal panel 110 and to provide ease of flatness management (width of the flatness management is approximately 0.25 mm). That is, the guide panel 160 can improve the black uniformity according to the improvement of the structural flatness. 1 and 2, the boundary line between the seating surface 161 and the inclined surface 162 corresponds to the position of the lower polarizer 111 attached to the lower portion of the liquid crystal panel 110 And may be formed so as to be located on the inner side of the outer periphery.

액정표시장치의 경우 모듈 제작시, 액정패널(110) 및 백라이트유닛(140) 등의 유동을 방지함과 더불어 빛샘을 방지하기 위한 고정 공정이 수행된다.In the case of a liquid crystal display device, a fixing process for preventing light leakage is performed while preventing the liquid crystal panel 110 and the backlight unit 140 from flowing when a module is manufactured.

모듈에 포함된 구성물들을 커버버텀(150)에 고정하는 공정은 구성물들을 안착시키고 끼워 맞추는 작업으로 수행되는 반면 액정패널(110)은 양면 차광테이프(130)에 의해 가이드패널(160)의 안착부(161, 162)에 부착되어 고정되는 작업이 수행된다. 여기서, 도면에서는 액정패널(110)과 백라이트유닛(140)의 최상위 층에 위치하는 제2광학시트(145)가 이격된 것으로 도시되어 있으나 이들은 상호 부착되어 고정된 상태를 유지할 수도 있다.The process of fixing the components included in the module to the cover bottom 150 is performed by seating and fitting the components while the liquid crystal panel 110 is fixed to the seating portion 160 of the guide panel 160 by the double- 161 and 162 are fixed and fixed. Here, although the liquid crystal panel 110 and the second optical sheet 145 located at the uppermost layer of the backlight unit 140 are shown as being spaced apart from each other, they may be mutually attached and fixed.

양면 차광테이프(130)를 이용하여 액정패널(110)을 부착 및 고정하는 과정에서, 양면 차광테이프(130)는 가이드패널(160)의 안착면(161)에만 부착되거나 경우에 따라서 안착면(161)과 경사면(162)에 부착(정전기나 인력 등에 의해 부착될 수 있음)되기도 한다.The double-sided shielding tape 130 may be adhered only to the seating surface 161 of the guide panel 160 or may be adhered to the seating surface 161 in some cases in the process of attaching and fixing the liquid crystal panel 110 using the double- (Which may be attached by static electricity, gravity, or the like) to the inclined surface 162 and the inclined surface 162.

그러나, 실시예의 가이드패널(160)은 액정패널(110)이 실질적으로 안착되는 안착면(161)의 폭(W1)이 좁기 때문에 이와 같이 양면 차광테이프(130)를 이용하여 고정하더라도 견고한 고정력을 가지면서도 탈착의 용이성을 갖게 된다.However, in the guide panel 160 of the embodiment, since the width W1 of the seating surface 161 on which the liquid crystal panel 110 is substantially seated is narrow, even if it is fixed using the double-side light-shielding tape 130, But also has ease of detachment.

앞서 설명하였듯이, 액정패널(110)은 양면 차광테이프(130)에 의해 가이드패널(160)의 안착면(161)에 부착된 상태이다. 따라서, 모듈 제작 공정 중 구성물들에 대한 재작업(분리)을 수행하기 위한 리워크(Rework) 수행시, 액정패널(110)을 가이드패널(160)로부터 용이하게 착탈할 수 있게 된다.
As described above, the liquid crystal panel 110 is attached to the seating surface 161 of the guide panel 160 by the double-sided shielding tape 130. Accordingly, the liquid crystal panel 110 can be easily attached and detached from the guide panel 160 when rework is performed to perform rework (separation) of the components in the module manufacturing process.

이상 본 발명의 실시예는 가이드패널의 안착부에 테이퍼(Taper) 형상을 부여하여 양면 차광 테이프의 부착 폭을 축소할 수 있고, 블랙 균일도 및 리워크 작업성을 향상시킬 수 있으며, 액정패널과의 간섭 부분을 최소화하여 블랙 균일도 향상에 따른 외관 개선효과를 더할 수 있는 액정표시장치를 제공하는 효과가 있다.As described above, according to the embodiment of the present invention, it is possible to reduce the attachment width of the both-side light-shielding tape by providing a tapered shape to the seating portion of the guide panel, to improve the black uniformity and rework workability, There is an effect of providing a liquid crystal display device capable of minimizing an interference portion and adding an appearance improving effect according to an improvement in black uniformity.

이상 첨부된 도면을 참조하여 본 발명의 실시예를 설명하였지만, 상술한 본 발명의 기술적 구성은 본 발명이 속하는 기술 분야의 당업자가 본 발명의 그 기술적 사상이나 필수적 특징을 변경하지 않고서 다른 구체적인 형태로 실시될 수 있다는 것을 이해할 수 있을 것이다. 그러므로 이상에서 기술한 실시 예들은 모든 면에서 예시적인 것이며 한정적인 것이 아닌 것으로서 이해되어야 한다. 아울러, 본 발명의 범위는 상기 상세한 설명보다는 후술하는 특허청구범위에 의하여 나타내어진다. 또한, 특허청구범위의 의미 및 범위 그리고 그 등가 개념으로부터 도출되는 모든 변경 또는 변형된 형태가 본 발명의 범위에 포함되는 것으로 해석되어야 한다.
While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It will be understood that the invention may be practiced. It is therefore to be understood that the embodiments described above are to be considered in all respects only as illustrative and not restrictive. In addition, the scope of the present invention is indicated by the following claims rather than the detailed description. Also, all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included within the scope of the present invention.

110: 액정패널 140: 백라이트유닛
150: 커버버텀 160: 가이드패널
161, 162: 안착부 161: 안착면
162: 안착면 163: 인입부
170: 커버탑110: liquid crystal panel 140: backlight unit
150: cover bottom 160: guide panel
161, 162: seat part 161: seat face
162: seat surface 163:
170: cover top

Claims (7)

커버버텀;
상기 커버버텀의 일면에 안착된 백라이트유닛;
상기 백라이트유닛 상에 위치하는 액정패널;
상기 액정패널의 하부에 부착된 하부편광판;
상기 하부편광판에 부착된 양면 차광테이프; 및
상기 커버버텀의 일면에 안착되고 상기 커버버텀의 외곽영역에 대응되는 프레임 형상을 가지며 상기 커버버텀의 일면으로부터 단차를 두고 마련된 안착부를 갖는 가이드패널을 포함하고,
상기 가이드패널의 안착부는 상기 액정패널이 안착되도록 평평한 면을 갖는 안착면과, 상기 안착면으로부터 기울기를 갖는 경사면을 포함하되,
상기 기울기는 상기 안착면으로부터 상기 가이드패널의 측벽으로 갈수록 감소하고,
상기 액정패널은 상기 양면 차광테이프에 의해 상기 안착면에 부착된 액정표시장치.Cover bottom;
A backlight unit mounted on one surface of the cover bottom;
A liquid crystal panel positioned on the backlight unit;
A lower polarizer attached to a lower portion of the liquid crystal panel;
A double-sided shielding tape attached to the lower polarizer; And
And a guide panel mounted on one surface of the cover bottom and having a frame shape corresponding to an outer area of the cover bottom and having a seating portion provided with a step from one surface of the cover bottom,
Wherein the seating portion of the guide panel includes a seating surface having a flat surface for seating the liquid crystal panel and an inclined surface having a slope from the seating surface,
Wherein the inclination decreases from the seating surface to the side wall of the guide panel,
Wherein the liquid crystal panel is attached to the seating surface by the double-sided light shielding tape. 제1항에 있어서,
상기 가이드패널은,
적어도 하나의 영역에 상기 안착면과 상기 경사면이 포함된 액정표시장치.The method according to claim 1,
The guide panel includes:
Wherein the at least one region includes the seating surface and the inclined surface. 제1항에 있어서,
상기 가이드패널은,
상기 백라이트유닛에 포함된 발광부가 설치되는 영역을 제외한 모든 영역에 상기 안착면과 상기 경사면이 포함된 액정표시장치.The method according to claim 1,
The guide panel includes:
Wherein the backlight unit includes the seating surface and the inclined surface in all areas except the area where the light emitting unit is installed. 제1항에 있어서,
상기 안착면과 상기 경사면의 경계선은,
상기 액정패널의 하부에 부착된 하부편광판의 외곽보다 내측에 위치하는 액정표시장치.The method according to claim 1,
The boundary line between the seating surface and the inclined surface,
Wherein the liquid crystal display panel is positioned inside the outer periphery of the lower polarizer plate attached to the lower portion of the liquid crystal panel. 제1항에 있어서,
상기 가이드패널은,
상기 백라이트유닛에 포함된 도광판의 일부를 덮도록 상기 안착부의 측면으로부터 내측으로 인입된 인입부를 포함하는 액정표시장치.The method according to claim 1,
The guide panel includes:
And a lead-in portion drawn inward from a side surface of the seating portion to cover a part of the light guide plate included in the backlight unit. 삭제delete 제1항에 있어서,
상기 양면 차광테이프는
상기 안착면, 상기 경사면 및 상기 백라이트유닛에 포함된 시트들의 일부를 덮도록 부착된 액정표시장치.

The method according to claim 1,
The double-sided shielding tape
And the liquid crystal display device is attached so as to cover the seating surface, the inclined surface, and a part of the sheets included in the backlight unit.

KR1020100139280A 2010-12-30 2010-12-30 Liquid Crystal Display Device KR101798653B1 (en)

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