KR20120077352A - Liquid crystal display device - Google Patents

Liquid crystal display device Download PDF

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Publication number
KR20120077352A
KR20120077352A KR1020100139280A KR20100139280A KR20120077352A KR 20120077352 A KR20120077352 A KR 20120077352A KR 1020100139280 A KR1020100139280 A KR 1020100139280A KR 20100139280 A KR20100139280 A KR 20100139280A KR 20120077352 A KR20120077352 A KR 20120077352A
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South Korea
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liquid crystal
guide panel
panel
crystal panel
cover bottom
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KR1020100139280A
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Korean (ko)
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KR101798653B1 (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

PURPOSE: A liquid crystal display device is provided to reduce the attachment width of a double sided light blocking tape. CONSTITUTION: A backlight unit(140) is placed on one side of a cover bottom(150). A guide panel(160) is placed on one side of the cover bottom. The guide panel has a frame shape corresponding to an external area of the cover bottom. The guide panel has mount parts(161,162). A liquid crystal panel(110) is placed on the mounting unit of the guide panel.

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, flat panel displays (FPDs), such as liquid crystal displays (LCDs), organic light emitting diodes (OLEDs), plasma display panels (PDPs), and the like. Usage is increasing. Among them, a liquid crystal display capable of realizing high resolution and capable of miniaturization as well as a large size is widely used.

액정표시장치는 수광형 표시장치로 분류된다. 이러한 액정표시장치는 액정패널의 하부에 위치하는 백라이트유닛으로부터 광원을 제공받아 영상을 표현할 수 있다.Liquid crystal displays are classified into light receiving displays. Such a liquid crystal display may display an image by receiving a light source from a backlight unit positioned 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 reflector, a light guide plate, a guide panel, an optical member, and the like to provide efficient light to the liquid crystal panel. Here, the light guide plate is an optical component that converts the side light source introduced into the side by the light source into a surface light source and provides the liquid crystal panel. In addition, the guide panel serves to fasten or attach the liquid crystal panel, the light guide plate, and various optical members as a frame structure of the liquid crystal panel, and to block light leaking to the side.

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 causes the following problems when manufacturing the liquid crystal panel as a module. First, since the width of the mounting portion of the guide panel on which the liquid crystal panel is seated is wide, it is difficult to manage the flatness and cause black uniformity defect (defective light leakage, in other words) due to the flatness when the liquid crystal panel is seated. In addition, since the liquid crystal panel is attached to the wide seating portion of the guide panel by the double-sided light shielding tape, the liquid crystal panel is damaged and the backlight unit is damaged during the rework.

그러므로, 종래 액정표시장치는 액정표시모듈 제작시 위와 같은 문제가 개선되도록 가이드패널의 구조적인 개선이 요구된다.
Therefore, the conventional liquid crystal display device requires a structural improvement of the guide panel 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.
Embodiment of the present invention for solving the above problems of the background, it is possible to reduce the adhesion width of the double-sided light-shielding tape, improve the black uniformity and rework workability, and minimize the interference portion with the liquid crystal panel The present invention provides a liquid crystal display device that can add an appearance improvement effect according to the improvement of 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.Embodiments of the present invention as a means for solving the above problems, the cover bottom; A backlight unit mounted on one surface of the cover bottom; A guide panel seated on one surface of the cover bottom and having a frame shape corresponding to an outer region of the cover bottom, and having a mounting portion provided at a step from one surface of the cover bottom; A liquid crystal panel includes a liquid crystal panel mounted on a mounting portion of a guide panel, and the mounting portion of the guide panel includes a mounting surface having a surface on which the liquid crystal panel is mounted, and an inclined surface having an inclination from the mounting 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 region.

가이드패널은, 백라이트유닛에 포함된 발광부가 설치되는 영역을 제외한 모든 영역에 안착면과 경사면이 포함되도록 형성될 수 있다.The guide panel may be formed to include a seating surface and an inclined surface in all regions except for the region where the light emitting unit 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 side of the lower polarizing 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 seating portion to cover a portion 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 may include a lower polarizing plate and an upper polarizing plate attached to the transistor substrate and the color filter substrate, respectively, and the liquid crystal panel may be attached to the mounting surface by the double sided light shielding tape attached to the lower polarizing 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.
According to the embodiment of the present invention, by attaching a taper shape to the seating portion of the guide panel, the adhesion width of the double-sided light shielding tape can be reduced, and the black uniformity and the rework workability can be improved. There is an effect of providing a liquid crystal display device that can minimize the interference portion and add an appearance improvement effect according to the improvement of 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 cross-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.
3 and 4 are views for explaining a region in which the seating portion of the guide panel according to the embodiment is formed.
Figure 5 is a comparison of the conventional guide panel and the guide panel of the embodiment.
6 is a view for explaining the structural advantages by the application of the guide panel according to the 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.1 is a cross-sectional view of a liquid crystal display device according to an embodiment of the present invention, FIG. 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 views of the guide panel according to the embodiment. It is a figure for demonstrating the area | region in which the mounting part was 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 exemplary embodiment of the present invention includes a liquid crystal panel 110, a backlight unit 140, a cover bottom 150, a guide panel 160, and a cover top. 170 is included.

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 mounted on the mounting surface 161 included in the mounting 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 include a switching transistor driven by a gate signal supplied from a gate line, a storage capacitor storing a data voltage supplied from the data line by a switching operation of the switching transistor, and a switching. The pixel electrode supplied with the pixel voltage from the transistor, the common electrode supplied with the common voltage from the common voltage line, the liquid crystal driven by the electric field formed by the pixel electrode and the common electrode, and the light emitted by the driving of the liquid crystal are red. , A color filter for converting to green and blue, a black matrix for preventing color mixing between the color filters, and the like. The liquid crystal panel 110 may be implemented to operate in a twisted nematic (TN) mode, a vertical alignment (VA) mode, an in plane switching (IPS) mode, a fringe field switching (FFS) mode, an electrically controlled irefringence (ECB) mode, and the like. The lower polarizing plate 111 and the upper polarizing plate 115 for converting polarization characteristics of light incident through the backlight unit 140 are attached to the transistor substrate 11a and the color filter substrate 110b constituting the liquid crystal panel 110, respectively. do. In addition, a black pad 120 having a purpose of preventing light leakage is attached to the outer region of the upper polarizing plate 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.The guide panel 160 is mounted on one surface of the cover bottom 150 together with the 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 reflecting plate 141, a light guide plate 142, a protective film 143, a first optical sheet 144, and a second optical sheet 145. . The reflective plate 141 reflects the surface light source incident to the light guide plate 142 in the upper direction in which the liquid crystal panel 110 is located. The light guide plate 142 converts the point light source generated by the light emitter into a surface light source and emits the light toward the upper direction in which the liquid crystal panel 110 is located. The protective film 143 serves to protect 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 configured in the shape of any one of a prism sheet, a lenticular lens sheet, a micro lens sheet, and a composite sheet composed of at least one thereof, but is 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.The guide panel 160 is seated on one surface of the cover bottom 150 as shown in FIG. 1 and has a frame shape corresponding to the outer region of the cover bottom 150, and has a mounting portion provided with a step from one surface of the cover bottom 150 ( 161, 162. The mounting 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 mounted, and an inclined surface 162 having an inclination 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.In addition, the guide panel 160 covers part of the light guide plate 142 included in the backlight unit 140 together with the seating portions 161 and 162 provided with a step from one surface of the cover bottom 150 as shown in FIG. 2. It has the lead-in part 163 drawn inward from the side surface of the seating part 161,162. The guide panel 160 of FIG. 2 has a light guide plate 142, a protective film 143, and a margin for applying ears to 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.
The guide panel 160 may be formed to include the seating surface 161 and the inclined surface 162 in all regions except for the region in which the light emitting unit (LED) included in the backlight unit 140 is installed, as shown in FIGS. 3 and 4. Can be. 3 illustrates a structure in which the light emitting unit LED is installed at one side, and FIG. 4 illustrates a structure in which the light emitting unit LED is installed at 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.In order to help the understanding of the structure of the guide panel 160 according to the embodiment will be described with reference to the comparison of the conventional guide panel and the guide panel of the embodiment as follows.

도 5는 종래 가이드패널과 실시예의 가이드패널의 비교도이다.Figure 5 is a comparison of the conventional guide panel and the 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.As shown in FIG. 3A, the conventional guide panel 160 is formed with a flat surface of the entire area of the seating portion 161 on which the liquid crystal panel 110 is mounted. However, as shown in FIG. In the panel 160, the mounting portions 161 and 162 on which the liquid crystal panel 110 is mounted are divided into a mounting surface 161 and an inclined surface 162.

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

도 6은 실시예에 따른 가이드패널 적용에 의한 구조적 이점에 대해 설명하기 위한 도면이다.6 is a view for explaining the structural advantages by the application of 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.As shown in FIGS. 1 to 6, the guide panel 160 according to the embodiment has a width W1 of the seating surface 161 on which the liquid crystal panel 110 is substantially seated, and the width of the entire seating portions 161 and 162. Since it can be reduced compared to (W2) it is possible to provide the ease of flatness management (width of the flatness management is approximately 0.25mm) in addition to minimizing the interference that the guide panel 160 to the liquid crystal panel 110. That is, the guide panel 160 may provide an effect of improving black uniformity according to structural flatness improvement. In the case of the guide panel 160, as shown in FIGS. 1 and 2, the boundary line between the seating surface 161 and the inclined surface 162 of the lower polarizing plate 111 is attached to the lower portion of the liquid crystal panel 110. It may be formed to be located inside the outer.

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 is performed to prevent light leakage while preventing the flow of the liquid crystal panel 110 and the backlight unit 140 when the 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 mounting and fitting the components, while the liquid crystal panel 110 is mounted on the guide panel 160 by the double-sided light shielding tape 130. 161 and 162 are attached to and fixed. Here, although the second optical sheet 145 positioned on the uppermost layer of the liquid crystal panel 110 and the backlight unit 140 is shown spaced apart from each other, they may be attached to each other to maintain a fixed state.

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.In the process of attaching and fixing the liquid crystal panel 110 using the double-sided light shielding tape 130, the double-sided light-shielding tape 130 is only attached to the seating surface 161 of the guide panel 160, or in some cases, the seating surface 161. ) And the inclined surface 162 (which may be attached by static electricity or manpower).

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, since the width W1 of the seating surface 161 on which the liquid crystal panel 110 is substantially seated is narrow, the guide panel 160 of the embodiment has a firm fixing force even though the guide panel 160 is fixed using the double-sided light shielding tape 130. While having a desorption ease.

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 light shielding tape 130. Therefore, the liquid crystal panel 110 can be easily detached from the guide panel 160 when the rework is performed to rework the components during 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.Embodiments of the present invention can provide a taper shape to the seating portion of the guide panel to reduce the width of the double-sided light-shielding tape, and improve black uniformity and rework workability. There is an effect of providing a liquid crystal display device that can minimize the interference portion and add an appearance improvement effect according to the improvement of 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, it is to be construed that all changes or modifications derived from the meaning and scope of the claims and their equivalent concepts are included in 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: seating portion 161: seating surface
162: seating surface 163: inlet
170: cover top

Claims (6)

커버버텀;
상기 커버버텀의 일면에 안착된 백라이트유닛;
상기 커버버텀의 일면에 안착되고 상기 커버버텀의 외곽영역에 대응되는 프레임 형상을 가지며 상기 커버버텀의 일면으로부터 단차를 두고 마련된 안착부를 갖는 가이드패널; 및
상기 가이드패널의 안착부에 안착된 액정패널을 포함하되,
상기 가이드패널의 안착부는,
상기 액정패널이 안착되는 면을 갖는 안착면과, 상기 안착면으로부터 기울기를 갖는 경사면을 포함하는 액정표시장치.Cover bottom;
A backlight unit seated on one surface of the cover bottom;
A guide panel seated on one surface of the cover bottom and having a frame shape corresponding to an outer region of the cover bottom, and having a seating portion provided at a step from one surface of the cover bottom; And
Including a liquid crystal panel seated on the seating portion of the guide panel,
The mounting portion of the guide panel,
And a mounting surface having a surface on which the liquid crystal panel is mounted, and an inclined surface having an inclination from the mounting surface. 제1항에 있어서,
상기 가이드패널은,
적어도 하나의 영역에 상기 안착면과 상기 경사면이 포함되도록 형성된 것을 특징으로 하는 액정표시장치.The method of claim 1,
The guide panel,
And a mounting surface and an inclined surface in at least one region. 제1항에 있어서,
상기 가이드패널은,
상기 백라이트유닛에 포함된 발광부가 설치되는 영역을 제외한 모든 영역에 상기 안착면과 상기 경사면이 포함되도록 형성된 것을 특징으로 하는 액정표시장치.The method of claim 1,
The guide panel,
And a seating surface and an inclined surface in all regions except for a region where a light emitting unit included in the backlight unit is installed. 제1항에 있어서,
상기 안착면과 상기 경사면의 경계선은,
상기 액정패널의 하부에 부착된 하부편광판의 외곽보다 내측에 위치하는 것을 특징으로 하는 액정표시장치.The method of claim 1,
The boundary line between the seating surface and the inclined surface,
And an inner side of the lower polarizing plate attached to a 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 of claim 1,
The guide panel,
And an inlet portion drawn inwardly from a side of the seating portion to cover a portion of the light guide plate included in the backlight unit. 제1항에 있어서,
상기 액정패널은 트랜지스터기판과 컬러필터기판에 각각 부착된 하부편광판과 상부 편광판을 포함하고,
상기 액정패널은,
상기 하부편광판에 부착된 양면 차광테이프에 의해 상기 안착부의 안착면에 부착된 것을 특징으로 하는 액정표시장치.The method of claim 1,
The liquid crystal panel includes a lower polarizing plate and an upper polarizing plate attached to a transistor substrate and a color filter substrate, respectively.
The liquid crystal panel,
And a mounting surface of the mounting portion by a double sided light shielding tape attached to the lower polarizing plate.
KR1020100139280A 2010-12-30 2010-12-30 Liquid Crystal Display Device KR101798653B1 (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101444778B1 (en) * 2013-05-30 2014-09-26 엘지디스플레이 주식회사 Liquid crystal display
KR20160073499A (en) * 2014-12-16 2016-06-27 엘지디스플레이 주식회사 Guide panel and back light unit and liquid crystal display device using the same
KR20170074532A (en) * 2015-12-22 2017-06-30 엘지디스플레이 주식회사 Display
CN107153234A (en) * 2017-04-28 2017-09-12 深圳市南极光电子科技有限公司 It is a kind of to improve the back light source structure and LCDs of backlight edge bright line

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100900464B1 (en) * 2008-01-03 2009-06-02 삼성전자주식회사 Display device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101444778B1 (en) * 2013-05-30 2014-09-26 엘지디스플레이 주식회사 Liquid crystal display
KR20160073499A (en) * 2014-12-16 2016-06-27 엘지디스플레이 주식회사 Guide panel and back light unit and liquid crystal display device using the same
KR20170074532A (en) * 2015-12-22 2017-06-30 엘지디스플레이 주식회사 Display
CN107153234A (en) * 2017-04-28 2017-09-12 深圳市南极光电子科技有限公司 It is a kind of to improve the back light source structure and LCDs of backlight edge bright line

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