WO2009019964A1 - 照明装置および液晶表示装置 - Google Patents

照明装置および液晶表示装置 Download PDF

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Publication number
WO2009019964A1
WO2009019964A1 PCT/JP2008/062850 JP2008062850W WO2009019964A1 WO 2009019964 A1 WO2009019964 A1 WO 2009019964A1 JP 2008062850 W JP2008062850 W JP 2008062850W WO 2009019964 A1 WO2009019964 A1 WO 2009019964A1
Authority
WO
WIPO (PCT)
Prior art keywords
light
photoconductor
lighting device
emitting portion
liquid crystal
Prior art date
Application number
PCT/JP2008/062850
Other languages
English (en)
French (fr)
Inventor
Shinji Suminoe
Yuhsaku Ajichi
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 US12/599,853 priority Critical patent/US20100225572A1/en
Priority to CN2008800173287A priority patent/CN101680637B/zh
Publication of WO2009019964A1 publication Critical patent/WO2009019964A1/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
    • G02B6/0033—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
    • G02B6/0013—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
    • G02B6/0028—Light guide, e.g. taper
    • 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
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Planar Illumination Modules (AREA)

Abstract

　本発明のバックライト（照明装置）（２）は、複数の光源（５）と、光源（５）からの光を面発光させる複数の導光体（７，１７，…）とを備えている。各導光体（７，１７，…）は、発光面（７ａ）を有する発光部（７ｂ，１７ｂ，…）と、発光部（７ｂ，１７ｂ，…）へ光源（５）からの光を導く導光部（７ｃ）とを有し、一方の導光体（７）の導光部（７ｃ）に、該一方の導光体（７）に隣り合う他方の導光体（１７）の発光部（１７ｂ）が乗り上げるように配置されている。受光した光の量を減少させる光量調整部（１１）が、一方の導光体（７）の発光部（７ｂ）と他方の導光体（１７）の発光部（１７ｂ）との間に配置されている。これにより、輝度の均一性をより向上させることのできる照明装置を実現できる。
PCT/JP2008/062850 2007-08-07 2008-07-16 照明装置および液晶表示装置 WO2009019964A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US12/599,853 US20100225572A1 (en) 2007-08-07 2008-07-16 Illumination device and liquid crystal display device
CN2008800173287A CN101680637B (zh) 2007-08-07 2008-07-16 照明装置和液晶显示装置

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2007205742 2007-08-07
JP2007-205742 2007-08-07
JP2008025689 2008-02-05
JP2008-025689 2008-02-05

Publications (1)

Publication Number Publication Date
WO2009019964A1 true WO2009019964A1 (ja) 2009-02-12

Family

ID=40341201

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/062850 WO2009019964A1 (ja) 2007-08-07 2008-07-16 照明装置および液晶表示装置

Country Status (3)

Country Link
US (1) US20100225572A1 (ja)
CN (1) CN101680637B (ja)
WO (1) WO2009019964A1 (ja)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010198756A (ja) * 2009-02-23 2010-09-09 Shin Etsu Polymer Co Ltd 導光部材および電子機器
WO2010109731A1 (ja) * 2009-03-25 2010-09-30 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
JP2011023347A (ja) * 2009-07-15 2011-02-03 Samsung Electronics Co Ltd ディスプレイ装置及びテレビジョン
CN102023410A (zh) * 2009-09-11 2011-04-20 日立民用电子株式会社 液晶显示装置
EP2385419A1 (en) * 2010-05-04 2011-11-09 LG Innotek Co., Ltd. Back light unit with light-guiding modules

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8414173B2 (en) * 2007-07-27 2013-04-09 Sharp Kabushiki Kaisha Illumination device and display device
WO2010004801A1 (ja) * 2008-07-07 2010-01-14 シャープ株式会社 照明装置および液晶表示装置
JP5322892B2 (ja) * 2009-11-06 2013-10-23 シャープ株式会社 照明装置、それを備えた表示装置およびテレビ受信装置
TWI406056B (zh) * 2009-12-04 2013-08-21 Au Optronics Corp 背光模組結構
JP5751922B2 (ja) * 2011-05-09 2015-07-22 キヤノン株式会社 発光装置および表示装置
JP2013012422A (ja) * 2011-06-30 2013-01-17 Hitachi Consumer Electronics Co Ltd バックライト装置及びこれを用いた液晶表示装置
CN108761910A (zh) * 2018-05-28 2018-11-06 京东方科技集团股份有限公司 电子设备、显示装置、背光模组及其光源
CN113990211B (zh) * 2021-11-15 2022-11-01 Tcl华星光电技术有限公司 显示屏及显示装置

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JPH09282921A (ja) * 1996-04-10 1997-10-31 Canon Inc バックライト装置及び該バックライト装置を備えた液晶表示装置
JP2001184929A (ja) * 1999-12-24 2001-07-06 Nec Corp 面状光源装置及びそれを備えた液晶表示装置
JP2003308718A (ja) * 2002-04-12 2003-10-31 Techno Wave Sanwa Kk 面状発光装置

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US5262928A (en) * 1991-02-21 1993-11-16 Tosoh Corporation Back lighting device
JP3543910B2 (ja) * 1996-10-11 2004-07-21 株式会社エンプラス サイドライト型面光源装置及び表示装置
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KR100654220B1 (ko) * 1999-08-03 2006-12-05 삼성전자주식회사 액정표시장치
JP2001312916A (ja) * 2000-02-24 2001-11-09 Sony Corp 面光源装置
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JP3670949B2 (ja) * 2000-09-27 2005-07-13 三洋電機株式会社 面光源装置
TWI254815B (en) * 2001-05-22 2006-05-11 Nichia Corp Guide-plate for a plane-luminous device
KR100783619B1 (ko) * 2002-06-29 2007-12-07 삼성전자주식회사 조명장치와 이를 갖는 백라이트 어셈블리 및 액정표시장치
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EP1954982A4 (en) * 2005-11-30 2011-11-30 Showa Denko Kk LIGHT GUIDE ELEMENT, PLANAR LIGHT SOURCE DEVICE HAVING THIS LIGHT GUIDE ELEMENT, AND DISPLAY APPARATUS USING THE SAME LIGHT SOURCE DEVICE
JP5052860B2 (ja) * 2005-12-15 2012-10-17 三菱電機株式会社 面状光源装置及びこれを用いた表示装置
TWI320123B (en) * 2005-12-23 2010-02-01 Backlight module and liquid crystal display device using the same
JP4735849B2 (ja) * 2006-10-26 2011-07-27 ミネベア株式会社 面状照明装置
US8414173B2 (en) * 2007-07-27 2013-04-09 Sharp Kabushiki Kaisha Illumination device and display device
US8520164B2 (en) * 2007-07-27 2013-08-27 Sharp Kabushiki Kaisha Illumination device, display device, and light guide plate
US8436962B2 (en) * 2007-07-27 2013-05-07 Sharp Kabushiki Kaisha Illumination device and liquid crystal display device
JPWO2009098809A1 (ja) * 2008-02-05 2011-05-26 シャープ株式会社 照明装置および液晶表示装置
US20110025730A1 (en) * 2008-05-30 2011-02-03 Sharp Kabushiki Kaisha Illumination device, display device, and light guide plate

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09282921A (ja) * 1996-04-10 1997-10-31 Canon Inc バックライト装置及び該バックライト装置を備えた液晶表示装置
JP2001184929A (ja) * 1999-12-24 2001-07-06 Nec Corp 面状光源装置及びそれを備えた液晶表示装置
JP2003308718A (ja) * 2002-04-12 2003-10-31 Techno Wave Sanwa Kk 面状発光装置

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010198756A (ja) * 2009-02-23 2010-09-09 Shin Etsu Polymer Co Ltd 導光部材および電子機器
WO2010109731A1 (ja) * 2009-03-25 2010-09-30 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
JP2011023347A (ja) * 2009-07-15 2011-02-03 Samsung Electronics Co Ltd ディスプレイ装置及びテレビジョン
CN102023410A (zh) * 2009-09-11 2011-04-20 日立民用电子株式会社 液晶显示装置
EP2385419A1 (en) * 2010-05-04 2011-11-09 LG Innotek Co., Ltd. Back light unit with light-guiding modules
JP2011238610A (ja) * 2010-05-04 2011-11-24 Lg Innotek Co Ltd バックライトユニット
US8277089B2 (en) 2010-05-04 2012-10-02 Lg Innotek Co., Ltd. Back light unit

Also Published As

Publication number Publication date
CN101680637B (zh) 2011-07-13
US20100225572A1 (en) 2010-09-09
CN101680637A (zh) 2010-03-24

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