WO2008136349A1 - 発光素子および液晶表示装置 - Google Patents

発光素子および液晶表示装置 Download PDF

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Publication number
WO2008136349A1
WO2008136349A1 PCT/JP2008/057928 JP2008057928W WO2008136349A1 WO 2008136349 A1 WO2008136349 A1 WO 2008136349A1 JP 2008057928 W JP2008057928 W JP 2008057928W WO 2008136349 A1 WO2008136349 A1 WO 2008136349A1
Authority
WO
WIPO (PCT)
Prior art keywords
light emitting
light
emitting element
liquid crystal
display device
Prior art date
Application number
PCT/JP2008/057928
Other languages
English (en)
French (fr)
Inventor
Yuhsaku Ajichi
Takeshi Masuda
Original Assignee
Sharp Kabushiki Kaisha
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sharp Kabushiki Kaisha filed Critical Sharp Kabushiki Kaisha
Priority to JP2009512951A priority Critical patent/JPWO2008136349A1/ja
Priority to US12/521,813 priority patent/US8154689B2/en
Priority to EP08752027A priority patent/EP2149745A1/en
Priority to BRPI0806882-8A priority patent/BRPI0806882A2/pt
Publication of WO2008136349A1 publication Critical patent/WO2008136349A1/ja

Links

Classifications

    • 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
    • G02B6/0066—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 characterised by the light source being coupled to the light guide
    • G02B6/0068—Arrangements of plural sources, e.g. multi-colour light sources
    • 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
    • G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
    • 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
    • G02B6/0075—Arrangements of multiple light guides
    • G02B6/0078—Side-by-side arrangements, e.g. for large area displays
    • G02B6/008—Side-by-side arrangements, e.g. for large area displays of the partially overlapping type
    • 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
    • G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/0045—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it by shaping at least a portion of the light guide
    • G02B6/0046—Tapered light guide, e.g. wedge-shaped light guide
    • 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
    • G02B6/0066—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 characterised by the light source being coupled to the light guide
    • G02B6/0073—Light emitting diode [LED]
    • 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
    • G02F1/133609—Direct backlight including means for improving the color mixing, e.g. white
    • 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
    • G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Planar Illumination Modules (AREA)
  • Liquid Crystal (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)

Abstract

　発光素子（１）は、異なる色が１つ以上含まれた複数個の発光ダイオード〔３（Ｒ１、Ｇ１１、…）〕と、各発光ダイオード〔３（Ｒ１、Ｇ１１、…）〕からの光を面発光させる導光体（４）とを備えており、複数個の発光ダイオードは導光体（４）に沿って一定の順序で並べられている。導光体（４）の幅方向（各発光ダイオード（３）の配列方向に沿った方向）における側面には、光を散乱させる散乱体（３１）が設けられている。これにより、側端面側に配置された発光ダイオードの色による色付きが起こらず、充分に混色された白色光源を得る。
PCT/JP2008/057928 2007-04-26 2008-04-24 発光素子および液晶表示装置 WO2008136349A1 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2009512951A JPWO2008136349A1 (ja) 2007-04-26 2008-04-24 発光素子および液晶表示装置
US12/521,813 US8154689B2 (en) 2007-04-26 2008-04-24 Light emitting element and liquid crystal display apparatus
EP08752027A EP2149745A1 (en) 2007-04-26 2008-04-24 Light emitting element and liquid crystal display device
BRPI0806882-8A BRPI0806882A2 (pt) 2007-04-26 2008-04-24 Elemento emissor de luz e aparelhagem de display de cristal líquido

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007117770 2007-04-26
JP2007-117770 2007-04-26

Publications (1)

Publication Number Publication Date
WO2008136349A1 true WO2008136349A1 (ja) 2008-11-13

Family

ID=39943460

Family Applications (2)

Application Number Title Priority Date Filing Date
PCT/JP2008/057949 WO2008136359A1 (ja) 2007-04-26 2008-04-24 発光素子および液晶表示装置
PCT/JP2008/057928 WO2008136349A1 (ja) 2007-04-26 2008-04-24 発光素子および液晶表示装置

Family Applications Before (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/057949 WO2008136359A1 (ja) 2007-04-26 2008-04-24 発光素子および液晶表示装置

Country Status (6)

Country Link
US (2) US20100110339A1 (ja)
EP (2) EP2172698A1 (ja)
JP (2) JPWO2008136349A1 (ja)
CN (2) CN101578480A (ja)
BR (1) BRPI0806882A2 (ja)
WO (2) WO2008136359A1 (ja)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010177086A (ja) * 2009-01-30 2010-08-12 Hitachi Ltd バックライトユニットおよびそれを用いた映像表示装置
ITTV20090058A1 (it) * 2009-03-26 2010-09-27 Giovine Vincenzo Di Sistema di illuminazione laminare a led con effetto scattering indotto
US20110051036A1 (en) * 2009-08-31 2011-03-03 Hitachi Consumer Electronics Co., Ltd. Liquid Crystal Display Device
US20110249039A1 (en) * 2010-04-09 2011-10-13 Yuya Ogi Image display device

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EP2172698A1 (en) 2007-04-26 2010-04-07 Sharp Kabushiki Kaisha Light emitting element and liquid crystal display device
JP2009123489A (ja) * 2007-11-14 2009-06-04 Sony Corp 面光源装置及び液晶表示装置
JP5179908B2 (ja) * 2008-03-12 2013-04-10 スタンレー電気株式会社 面光源照明装置
JP2010067439A (ja) * 2008-09-10 2010-03-25 Harison Toshiba Lighting Corp 面発光装置および表示装置
JP2010157455A (ja) * 2008-12-29 2010-07-15 Funai Electric Co Ltd 液晶表示装置のバックライト
JP4742153B2 (ja) * 2009-01-30 2011-08-10 キヤノン株式会社 原稿読取装置
KR101565409B1 (ko) * 2009-06-02 2015-11-03 엘지전자 주식회사 Ｌｅｄ 백라이트 유닛
WO2010147294A1 (ko) * 2009-06-15 2010-12-23 엘지전자 주식회사 디스플레이 장치
KR100964467B1 (ko) * 2009-11-24 2010-06-16 엘지전자 주식회사 디스플레이 장치
JP2011053238A (ja) * 2009-08-31 2011-03-17 Hitachi Consumer Electronics Co Ltd 液晶表示装置及びバックライト装置
CN102004355A (zh) * 2009-08-31 2011-04-06 日立民用电子株式会社 液晶显示装置
US8446547B2 (en) * 2009-12-03 2013-05-21 Lg Display Co., Ltd. Liquid crystal display device including back light unit having LED array
CN101956935A (zh) 2010-07-30 2011-01-26 深圳市华星光电技术有限公司 背光模组以及液晶显示装置
CN101994954A (zh) * 2010-07-30 2011-03-30 深圳市华星光电技术有限公司 一种背光模组
KR101706578B1 (ko) * 2010-10-08 2017-02-16 엘지디스플레이 주식회사 백라이트 유닛 및 이를 포함하는 액정표시장치 모듈
US8632236B2 (en) * 2011-11-04 2014-01-21 GE Lighting Solutions, LLC LED lighting module and lighting device comprised thereof
JP5952557B2 (ja) * 2011-12-26 2016-07-13 株式会社小糸製作所 発光モジュールおよび車両用灯具
EP2810126A1 (en) * 2012-01-25 2014-12-10 Koninklijke Philips N.V. Light emitting device for backlight device and method of operating the light emitting device
CN102661572A (zh) * 2012-04-18 2012-09-12 深圳市华星光电技术有限公司 上棱镜导光板及相应的背光模块
JP5952086B2 (ja) * 2012-05-24 2016-07-13 スタンレー電気株式会社 車両用灯具
US10908348B2 (en) * 2015-09-24 2021-02-02 Sharp Kabushiki Kaisha Lighting device, display device, and television device
KR102463846B1 (ko) * 2015-12-30 2022-11-04 엘지디스플레이 주식회사 백라이트 유닛 및 그를 포함하는 표시장치
CN105629577B (zh) * 2016-03-31 2019-10-01 上海天马微电子有限公司 背光单元、显示屏及显示装置

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010177086A (ja) * 2009-01-30 2010-08-12 Hitachi Ltd バックライトユニットおよびそれを用いた映像表示装置
ITTV20090058A1 (it) * 2009-03-26 2010-09-27 Giovine Vincenzo Di Sistema di illuminazione laminare a led con effetto scattering indotto
US20110051036A1 (en) * 2009-08-31 2011-03-03 Hitachi Consumer Electronics Co., Ltd. Liquid Crystal Display Device
US20110249039A1 (en) * 2010-04-09 2011-10-13 Yuya Ogi Image display device
US8823633B2 (en) * 2010-04-09 2014-09-02 Hitachi Consumer Electronics Co., Ltd. Image display device

Also Published As

Publication number Publication date
BRPI0806882A2 (pt) 2015-06-16
EP2149745A1 (en) 2010-02-03
WO2008136359A1 (ja) 2008-11-13
JP5085645B2 (ja) 2012-11-28
CN101622494A (zh) 2010-01-06
JPWO2008136359A1 (ja) 2010-07-29
US20100110339A1 (en) 2010-05-06
US8154689B2 (en) 2012-04-10
JPWO2008136349A1 (ja) 2010-07-29
US20100103346A1 (en) 2010-04-29
CN101578480A (zh) 2009-11-11
EP2172698A1 (en) 2010-04-07

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