WO2008152825A1 - バックライトユニット - Google Patents

バックライトユニット Download PDF

Info

Publication number
WO2008152825A1
WO2008152825A1 PCT/JP2008/050954 JP2008050954W WO2008152825A1 WO 2008152825 A1 WO2008152825 A1 WO 2008152825A1 JP 2008050954 W JP2008050954 W JP 2008050954W WO 2008152825 A1 WO2008152825 A1 WO 2008152825A1
Authority
WO
WIPO (PCT)
Prior art keywords
optical waveguide
light
backlight unit
incident face
light emitting
Prior art date
Application number
PCT/JP2008/050954
Other languages
English (en)
French (fr)
Inventor
Tetsuya Hamada
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 EP08703782A priority Critical patent/EP2157367A4/en
Priority to JP2009519174A priority patent/JP4987976B2/ja
Priority to US12/598,699 priority patent/US20100165662A1/en
Publication of WO2008152825A1 publication Critical patent/WO2008152825A1/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
    • G02B6/0013—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
    • G02B6/0031—Reflecting element, 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
    • G02B6/0066—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
    • G02B6/0081—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

Abstract

コストダウンを図りながら、導光板の端部付近における光量の低下を抑制し、かつ、光の利用効率を向上させることが可能なバックライトユニットを提供する。このバックライトユニット（１０、３０、４０、５０）は、フレーム（１、４１、５１）の内部に設けられた導光板（３）と、フレームの内部に設けられ、導光板の光入射面（３ａ）と対向するように互いに所定の間隔を隔てて配列された複数の発光ダイオード（４）とを備えている。そして、導光板の光入射面の端部（３ｇ）と対向する領域には、発光ダイオードが配置されておらず、発光ダイオードからの出射光を導光板の光入射面に向かって反射する反射面（１ｆ、４１ｇ、３１ａ、５７ａ）が設けられている。
PCT/JP2008/050954 2007-06-12 2008-01-24 バックライトユニット WO2008152825A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP08703782A EP2157367A4 (en) 2007-06-12 2008-01-24 TAIL LIGHT UNIT
JP2009519174A JP4987976B2 (ja) 2007-06-12 2008-01-24 バックライトユニット
US12/598,699 US20100165662A1 (en) 2007-06-12 2008-01-24 Backlight unit

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007-154964 2007-06-12
JP2007154964 2007-06-12

Publications (1)

Publication Number Publication Date
WO2008152825A1 true WO2008152825A1 (ja) 2008-12-18

Family

ID=40129440

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/050954 WO2008152825A1 (ja) 2007-06-12 2008-01-24 バックライトユニット

Country Status (5)

Country Link
US (1) US20100165662A1 (ja)
EP (1) EP2157367A4 (ja)
JP (1) JP4987976B2 (ja)
CN (1) CN101668987A (ja)
WO (1) WO2008152825A1 (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011067994A1 (ja) * 2009-12-03 2011-06-09 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
KR101819594B1 (ko) * 2011-08-02 2018-01-18 삼성디스플레이 주식회사 발광 유닛, 이를 포함하는 백라이트 어셈블리 및 발광 유닛의 제조 방법

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011258649A (ja) * 2010-06-07 2011-12-22 Sanken Electric Co Ltd 照明装置及び照明装置の制御方法
JP5857496B2 (ja) 2011-07-25 2016-02-10 セイコーエプソン株式会社 照明装置、表示装置および電子機器
KR20130018015A (ko) 2011-08-12 2013-02-20 삼성디스플레이 주식회사 백라이트 어셈블리
US9110209B2 (en) 2013-03-15 2015-08-18 Cooper Technologies Company Edgelit LED blade fixture
USD698975S1 (en) 2013-04-22 2014-02-04 Cooper Technologies Company Edgelit blade luminaire
US9804322B1 (en) 2014-10-21 2017-10-31 Cooper Technologies Company Linear edgelit lighting system with heat sink base and clamp coupled together with a fastener
US20190041050A1 (en) 2017-08-01 2019-02-07 Technical Consumer Products, Inc. Edge-lit light fixture having capabilities for a secondary service
CN107247366B (zh) * 2017-08-01 2020-04-24 武汉天马微电子有限公司 背光模组及显示装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09222863A (ja) * 1996-02-16 1997-08-26 Clarion Co Ltd Ｌｅｄ照明装置
JP2002258283A (ja) 2000-12-28 2002-09-11 Optrex Corp 液晶表示素子用バックライト
JP2002277873A (ja) * 2001-03-22 2002-09-25 Baisutekku Kk バックライト
JP2006011242A (ja) 2004-06-29 2006-01-12 Kyocera Corp 液晶表示装置
JP2006351354A (ja) 2005-06-16 2006-12-28 Toppan Printing Co Ltd 導光板とそれを用いたエッジライト型面光源および液晶表示装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6712481B2 (en) * 1995-06-27 2004-03-30 Solid State Opto Limited Light emitting panel assemblies
US5613751A (en) * 1995-06-27 1997-03-25 Lumitex, Inc. Light emitting panel assemblies
US20020089839A1 (en) * 2001-01-09 2002-07-11 Hui-Liang Chien Method for designing the light conductor with two side light sources and the structure thereof
TWM263518U (en) * 2004-07-06 2005-05-01 Au Optronics Corp Backlight module
US7293906B2 (en) * 2005-05-23 2007-11-13 Avago Technologies Ecbu Ip (Singapore) Pte Ltd Light source adapted for LCD back-lit displays
TW200705033A (en) * 2005-07-21 2007-02-01 Jemitek Electronics Corp Back light unit and method of adjusting spectral distribution thereof
DE102007002403B4 (de) * 2007-01-17 2016-03-03 Osram Gmbh Beleuchtungsanordnung, Mehrfach-Lichtmodul, Leuchte und deren Verwendung
CN101275719B (zh) * 2007-03-27 2010-12-01 鸿富锦精密工业（深圳）有限公司 发光二极管照明装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09222863A (ja) * 1996-02-16 1997-08-26 Clarion Co Ltd Ｌｅｄ照明装置
JP2002258283A (ja) 2000-12-28 2002-09-11 Optrex Corp 液晶表示素子用バックライト
JP2002277873A (ja) * 2001-03-22 2002-09-25 Baisutekku Kk バックライト
JP2006011242A (ja) 2004-06-29 2006-01-12 Kyocera Corp 液晶表示装置
JP2006351354A (ja) 2005-06-16 2006-12-28 Toppan Printing Co Ltd 導光板とそれを用いたエッジライト型面光源および液晶表示装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP2157367A4 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011067994A1 (ja) * 2009-12-03 2011-06-09 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
KR101819594B1 (ko) * 2011-08-02 2018-01-18 삼성디스플레이 주식회사 발광 유닛, 이를 포함하는 백라이트 어셈블리 및 발광 유닛의 제조 방법

Also Published As

Publication number Publication date
US20100165662A1 (en) 2010-07-01
CN101668987A (zh) 2010-03-10
JP4987976B2 (ja) 2012-08-01
JPWO2008152825A1 (ja) 2010-08-26
EP2157367A1 (en) 2010-02-24
EP2157367A4 (en) 2010-05-26

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