KR20060129788A - 액정표시장치 - Google Patents
액정표시장치 Download PDFInfo
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- KR20060129788A KR20060129788A KR1020050050440A KR20050050440A KR20060129788A KR 20060129788 A KR20060129788 A KR 20060129788A KR 1020050050440 A KR1020050050440 A KR 1020050050440A KR 20050050440 A KR20050050440 A KR 20050050440A KR 20060129788 A KR20060129788 A KR 20060129788A
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- Prior art keywords
- led
- liquid crystal
- guide plate
- light guide
- crystal display
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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
- G02F1/133603—Direct backlight with LEDs
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- 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
- G02B6/0055—Reflecting element, sheet or layer
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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
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- 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
- G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
- G02B6/0085—Means for removing heat created by the light source from the package
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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
- G02F1/133382—Heating or cooling of liquid crystal cells other than for activation, e.g. circuits or arrangements for temperature control, stabilisation or uniform distribution over the cell
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- 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
- G02B6/0051—Diffusing 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
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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
- G02F1/133628—Illuminating devices with cooling means
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Liquid Crystal (AREA)
- Planar Illumination Modules (AREA)
Abstract
Description
Claims (11)
- 액정표시장치에 있어서,액정표시패널과;상기 액정표시패널의 하부에 위치하는 도광판과;상기 도광판의 적어도 일측면을 따라 배치되어 있으며 전면에 엘이디를 실장하고 있는 엘이디 회로기판과;상기 엘이디 회로기판의 배면과 밀착되어 있는 측면부와 상기 도광판의 하부로 연장되어 있는 하면부를 가지며 열전도율이 150W/m2이상인 열전도부재를 포함하는 액정표시장치.
- 제 1항에 있어서,상기 열전도부재의 적어도 일부를 덮고 있으며 상기 열전도부재보다 열전도율이 큰 보조 열전도부재를 더 포함하는 것을 특징으로 하는 액정표시장치.
- 제 1항에 있어서,상기 열전도부재는 알루미늄으로 만들어진 것을 특징으로 하는 액정표시장치.
- 제 2항에 있어서,상기 보조 열전도부재는 흑연으로 만들어진 것을 특징으로 하는 액정표시장치.
- 제 2항에 있어서,상기 보조 열전도부재는 상기 측면부의 적어도 일부를 덮고 있는 것을 특징으로 하는 액정표시장치.
- 제 2항에 있어서,상기 보조 열전도부재의 열전도율은 400W/m2이상인 것을 특징으로 하는 액정표시장치.
- 제 1항에 있어서,상기 엘이디 회로기판은 금속 재질인 것을 특징으로 하는 액정표시장치.
- 제 1항에 있어서,상기 엘이디 회로기판과 상기 열전도부재 사이에 위치하는 갭패드를 더 포함하는 것을 특징으로 하는 액정표시장치.
- 제 1항에 있어서,상기 도광판 하부에 위치하는 제1면, 상기 제1면으로부터 절곡연장되어 상기 도광판과 상기 엘이디 사이에 위치하며 상기 엘이디를 수용하는 엘이디 수용공이 형성되어 있는 제2면, 그리고 상기 제2면으로부터 상기 액정표시패널과 평행하게 연장되어 상기 도광판의 일부를 덮는 제3면을 가지는 반사판을 더 포함하는 것을 특징으로 하는 액정표시장치.
- 제 1항에 있어서,상기 엘이디부터의 빛을 상기 도광판으로 반사시켜며 상기 엘이디 회로기판을 수용하는 반사커버를 더 포함하는 것을 특징으로 하는 액정표시장치.
- 제 10항에 있어서,상기 엘이디 회로기판과 상기 반사커버 사이와, 상기 반사커버와 상기 열전도부재 사이에 각각 위치하는 갭패드를 더 포함하는 것을 특징으로 하는 액정표시장치.
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020050050440A KR100687926B1 (ko) | 2005-06-13 | 2005-06-13 | 액정표시장치 |
CNB2006100912864A CN100432794C (zh) | 2005-06-13 | 2006-06-08 | 具有提高的冷却效率的液晶显示装置 |
US11/450,373 US8736788B2 (en) | 2005-06-13 | 2006-06-12 | Liquid crystal display device having improved cooling efficiency |
US14/253,456 US10162217B2 (en) | 2005-06-13 | 2014-04-15 | Liquid crystal display device having improved cooling efficiency |
US14/538,053 US10191328B2 (en) | 2005-06-13 | 2014-11-11 | Liquid crystal display device having improved cooling efficiency |
US16/222,273 US10712610B2 (en) | 2005-06-13 | 2018-12-17 | Liquid crystal display device having improved cooling efficiency |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020050050440A KR100687926B1 (ko) | 2005-06-13 | 2005-06-13 | 액정표시장치 |
Publications (2)
Publication Number | Publication Date |
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KR20060129788A true KR20060129788A (ko) | 2006-12-18 |
KR100687926B1 KR100687926B1 (ko) | 2007-02-27 |
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Application Number | Title | Priority Date | Filing Date |
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KR1020050050440A KR100687926B1 (ko) | 2005-06-13 | 2005-06-13 | 액정표시장치 |
Country Status (3)
Country | Link |
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US (4) | US8736788B2 (ko) |
KR (1) | KR100687926B1 (ko) |
CN (1) | CN100432794C (ko) |
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Cited By (2)
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KR101290664B1 (ko) * | 2010-03-18 | 2013-07-30 | 광운대학교 산학협력단 | 열전소자를 이용한 엘이디 백라이트 유닛 |
CN104270921A (zh) * | 2014-09-26 | 2015-01-07 | 中国南方电网有限责任公司电网技术研究中心 | 一种微型化高防护等级微机保护装置 |
Also Published As
Publication number | Publication date |
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US10191328B2 (en) | 2019-01-29 |
US20150062489A1 (en) | 2015-03-05 |
CN1881040A (zh) | 2006-12-20 |
CN100432794C (zh) | 2008-11-12 |
US20060279216A1 (en) | 2006-12-14 |
US10162217B2 (en) | 2018-12-25 |
KR100687926B1 (ko) | 2007-02-27 |
US20190137819A1 (en) | 2019-05-09 |
US8736788B2 (en) | 2014-05-27 |
US10712610B2 (en) | 2020-07-14 |
US20140226106A1 (en) | 2014-08-14 |
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