JP2009026765A - バックライトユニット - Google Patents
バックライトユニット Download PDFInfo
- Publication number
- JP2009026765A JP2009026765A JP2008189122A JP2008189122A JP2009026765A JP 2009026765 A JP2009026765 A JP 2009026765A JP 2008189122 A JP2008189122 A JP 2008189122A JP 2008189122 A JP2008189122 A JP 2008189122A JP 2009026765 A JP2009026765 A JP 2009026765A
- Authority
- JP
- Japan
- Prior art keywords
- led
- backlight unit
- leds
- led modules
- led module
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 230000003287 optical effect Effects 0.000 claims abstract description 37
- 230000017525 heat dissipation Effects 0.000 claims description 9
- 238000000034 method Methods 0.000 abstract description 14
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 20
- 239000004973 liquid crystal related substance Substances 0.000 description 13
- 229910052791 calcium Inorganic materials 0.000 description 9
- 229910052788 barium Inorganic materials 0.000 description 8
- 229910052749 magnesium Inorganic materials 0.000 description 8
- 239000000203 mixture Substances 0.000 description 8
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 229910052712 strontium Inorganic materials 0.000 description 4
- 229910004283 SiO 4 Inorganic materials 0.000 description 3
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 150000004767 nitrides Chemical class 0.000 description 3
- 229910052691 Erbium Inorganic materials 0.000 description 2
- 229910052689 Holmium Inorganic materials 0.000 description 2
- 239000012190 activator Substances 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 210000002858 crystal cell Anatomy 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000020169 heat generation Effects 0.000 description 2
- 229910052688 Gadolinium Inorganic materials 0.000 description 1
- 229910003564 SiAlON Inorganic materials 0.000 description 1
- 150000004645 aluminates Chemical class 0.000 description 1
- 238000000149 argon plasma sintering Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000295 emission spectrum Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000010365 information processing Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
Classifications
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
- F21K9/60—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
-
- 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
- G02F1/133614—Illuminating devices using photoluminescence, e.g. phosphors illuminated by UV or blue light
-
- 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
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/14—Structural association of two or more printed circuits
- H05K1/142—Arrangements of planar printed circuit boards in the same plane, e.g. auxiliary printed circuit insert mounted in a main printed circuit
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Mathematical Physics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- General Engineering & Computer Science (AREA)
- Planar Illumination Modules (AREA)
- Liquid Crystal (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
【解決手段】光を発生する複数のLED110と、該複数のLED110を支持駆動する印刷回路基板を有する複数のLEDモジュール120と、該複数のLEDモジュール120の上側に各々取り付けられた光学シート140と、該複数のLEDモジュール120の背面に各々取り付けられた放熱パッド130とを含む。
【選択図】 図2
Description
110 LED
120 LEDモジュール
130 放熱パッド
140 光学シート
Claims (7)
- 光を発生する複数のLEDと、
前記複数のLEDを支持駆動する印刷回路基板を有する複数のLEDモジュールと、
前記複数のLEDモジュールの上側に各々取り付けられた光学シートと、
前記複数のLEDモジュールの背面に各々取り付けられた放熱パッドと、
を含むことを特徴とするバックライトユニット。 - 前記LEDモジュール、前記光学シート及び前記放熱パッドが、同一の大きさに設けられたことを特徴とする請求項1に記載のバックライトユニット。
- 前記光学シート及び前記放熱パッドの大きさが、前記LEDモジュールより小さいことを特徴とする請求項2に記載のバックライトユニット。
- 前記LEDモジュールが、長手方向に並んで配列されることを特徴とする請求項1に記載のバックライトユニット。
- 前記LEDモジュールが、中央の一定領域を取り囲むように配列されることを特徴とする請求項1に記載のバックライトユニット。
- 前記複数のLEDが、三角形または四角形状に連続して配列されることを特徴とする請求項1に記載のバックライトユニット。
- 前記複数のLEDのうちの一部が、部分的にオン/オフ可能なように回路的に分離されることを特徴とする請求項1に記載のバックライトユニット。
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2007-0072266 | 2007-07-19 | ||
KR20070072266 | 2007-07-19 | ||
KR10-2008-0069033 | 2008-07-16 | ||
KR1020080069033A KR100951274B1 (ko) | 2007-07-19 | 2008-07-16 | 백라이트 유닛 |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2009028704A Division JP4880005B2 (ja) | 2007-07-19 | 2009-02-10 | バックライトユニットおよびディスプレイ |
JP2011262934A Division JP2012089509A (ja) | 2007-07-19 | 2011-11-30 | バックライトユニット |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2009026765A true JP2009026765A (ja) | 2009-02-05 |
JP2009026765A5 JP2009026765A5 (ja) | 2010-10-21 |
JP4879942B2 JP4879942B2 (ja) | 2012-02-22 |
Family
ID=40264688
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2008189122A Active JP4879942B2 (ja) | 2007-07-19 | 2008-07-22 | バックライトユニットおよびディスプレイ |
Country Status (2)
Country | Link |
---|---|
US (4) | US7905618B2 (ja) |
JP (1) | JP4879942B2 (ja) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012530339A (ja) * | 2009-06-17 | 2012-11-29 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | 光温度変化を伴う調光可能な光源 |
US8534859B2 (en) | 2010-06-30 | 2013-09-17 | Hitachi Displays, Ltd. | Liquid crystal display device and television set |
JP2017130633A (ja) * | 2016-01-22 | 2017-07-27 | 豊田合成株式会社 | 発光装置 |
JP2020188001A (ja) * | 2019-05-09 | 2020-11-19 | フォーシャン・ネーションスター・オプトエレクトロニクス・カンパニー・リミテッド | バックライトモジュールおよびそれを備えた表示装置 |
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US7575697B2 (en) * | 2004-08-04 | 2009-08-18 | Intematix Corporation | Silicate-based green phosphors |
US7896521B2 (en) * | 2007-05-04 | 2011-03-01 | Abl Ip Holding Llc | Adjustable light distribution system |
US7905618B2 (en) * | 2007-07-19 | 2011-03-15 | Samsung Led Co., Ltd. | Backlight unit |
KR101308752B1 (ko) * | 2008-12-31 | 2013-09-12 | 엘지디스플레이 주식회사 | 액정표시장치 |
WO2010147005A1 (ja) * | 2009-06-15 | 2010-12-23 | シャープ株式会社 | 照明装置、表示装置、及びテレビ受信装置 |
RU2511720C2 (ru) * | 2009-06-15 | 2014-04-10 | Шарп Кабусики Кайся | Осветительное устройство, устройство отображения и телевизионный приемник |
US8941796B2 (en) | 2009-06-15 | 2015-01-27 | Sharp Kabushiki Kaisha | Light source unit, lighting device, display device, television receiver, and method of manufacturing board for light source unit |
KR101580921B1 (ko) * | 2009-08-14 | 2015-12-30 | 삼성디스플레이 주식회사 | 표시 장치 |
US20120212936A1 (en) * | 2009-12-02 | 2012-08-23 | Sharp Kabushiki Kaisha | Illumination device and display device |
US9377173B2 (en) * | 2010-04-21 | 2016-06-28 | Cooper Technologies Company | LED luminaire assembly |
BR112013014668A2 (pt) | 2010-12-16 | 2016-09-27 | Koninkl Philips Electronics Nv | montagem à base de led |
CN102889499A (zh) * | 2011-07-19 | 2013-01-23 | 常州普美电子科技有限公司 | 背光板 |
US9025111B2 (en) * | 2012-04-20 | 2015-05-05 | Google Inc. | Seamless display panel using fiber optic carpet |
EP2852275B1 (en) | 2012-07-11 | 2015-12-30 | Koninklijke Philips N.V. | Lighting device capable of providing horticulture light and method of illuminating horticulture |
CN102767731B (zh) * | 2012-07-23 | 2014-06-25 | 友达光电(苏州)有限公司 | 发光灯条与应用其的发光模组 |
KR101974349B1 (ko) * | 2012-10-04 | 2019-05-02 | 삼성전자주식회사 | 발광모듈과 이를 이용한 조명장치 |
USRE47969E1 (en) | 2012-10-08 | 2020-04-28 | Signify Holding B.V. | Methods and apparatus for compensating a removal of LEDs from an LED array |
CN104704915B (zh) | 2012-10-08 | 2017-04-19 | 飞利浦灯具控股公司 | 用于补偿led从led阵列的移除的方法和装置 |
CN103047589B (zh) * | 2013-01-14 | 2015-02-25 | 四川长虹光电有限公司 | 直下式led背光模组设计方法 |
KR101664422B1 (ko) | 2013-01-23 | 2016-10-10 | 엘지전자 주식회사 | 평면 조명 장치 |
KR102381317B1 (ko) * | 2014-10-30 | 2022-04-01 | 삼성디스플레이 주식회사 | 백라이트 유닛 |
EP3015912B1 (en) | 2014-10-31 | 2017-12-06 | LG Electronics Inc. | Backlight unit and display device including backlight unit |
WO2016068590A1 (en) | 2014-10-31 | 2016-05-06 | Lg Electronics Inc. | Backlight unit and display device including backlight unit |
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JP6646816B2 (ja) | 2015-09-01 | 2020-02-14 | パナソニックIpマネジメント株式会社 | 画像表示装置 |
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US7905618B2 (en) | 2011-03-15 |
US20140313696A1 (en) | 2014-10-23 |
US20090021932A1 (en) | 2009-01-22 |
JP4879942B2 (ja) | 2012-02-22 |
US9519184B2 (en) | 2016-12-13 |
US20110026241A1 (en) | 2011-02-03 |
US8220944B2 (en) | 2012-07-17 |
US20090168399A1 (en) | 2009-07-02 |
US8764212B2 (en) | 2014-07-01 |
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