JP2008010291A - 導光板、バックライトユニット、及びそのバックライトユニットを備えた表示装置 - Google Patents

導光板、バックライトユニット、及びそのバックライトユニットを備えた表示装置 Download PDF

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Publication number
JP2008010291A
JP2008010291A JP2006179002A JP2006179002A JP2008010291A JP 2008010291 A JP2008010291 A JP 2008010291A JP 2006179002 A JP2006179002 A JP 2006179002A JP 2006179002 A JP2006179002 A JP 2006179002A JP 2008010291 A JP2008010291 A JP 2008010291A
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JP
Japan
Prior art keywords
light
guide plate
light guide
backlight unit
leds
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.)
Pending
Application number
JP2006179002A
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English (en)
Japanese (ja)
Other versions
JP2008010291A5 (https=
Inventor
Takaya Noba
孝也 野場
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Citizen Electronics Co Ltd
Original Assignee
Citizen Electronics Co Ltd
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 Citizen Electronics Co Ltd filed Critical Citizen Electronics Co Ltd
Priority to JP2006179002A priority Critical patent/JP2008010291A/ja
Priority to DE102007029659A priority patent/DE102007029659A1/de
Priority to US11/824,294 priority patent/US20080002429A1/en
Publication of JP2008010291A publication Critical patent/JP2008010291A/ja
Publication of JP2008010291A5 publication Critical patent/JP2008010291A5/ja
Pending legal-status Critical Current

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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
    • G02B6/0015—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/0016—Grooves, prisms, gratings, scattering particles or rough surfaces
    • 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
    • G02B6/0013—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
    • G02B6/0033—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]

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Planar Illumination Modules (AREA)
  • Liquid Crystal (AREA)
  • Light Guides In General And Applications Therefor (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
JP2006179002A 2006-06-29 2006-06-29 導光板、バックライトユニット、及びそのバックライトユニットを備えた表示装置 Pending JP2008010291A (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2006179002A JP2008010291A (ja) 2006-06-29 2006-06-29 導光板、バックライトユニット、及びそのバックライトユニットを備えた表示装置
DE102007029659A DE102007029659A1 (de) 2006-06-29 2007-06-27 Hintergrundbeleuchtungseinheit und Anzeigevorrichtung mit der Hintergrundbeleuchtungseinheit
US11/824,294 US20080002429A1 (en) 2006-06-29 2007-06-28 Backlight unit and display device with the backlight unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2006179002A JP2008010291A (ja) 2006-06-29 2006-06-29 導光板、バックライトユニット、及びそのバックライトユニットを備えた表示装置

Publications (2)

Publication Number Publication Date
JP2008010291A true JP2008010291A (ja) 2008-01-17
JP2008010291A5 JP2008010291A5 (https=) 2009-07-02

Family

ID=38825452

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2006179002A Pending JP2008010291A (ja) 2006-06-29 2006-06-29 導光板、バックライトユニット、及びそのバックライトユニットを備えた表示装置

Country Status (3)

Country Link
US (1) US20080002429A1 (https=)
JP (1) JP2008010291A (https=)
DE (1) DE102007029659A1 (https=)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010050489A1 (ja) * 2008-10-30 2010-05-06 日本ゼオン株式会社 光源装置および液晶表示装置
JP2010232529A (ja) * 2009-03-27 2010-10-14 Toyoda Gosei Co Ltd 発光装置及びバックライト装置
US8199281B2 (en) 2008-12-29 2012-06-12 Funai Electric Co., Ltd. Backlight of liquid crystal display device
JP2012249208A (ja) * 2011-05-31 2012-12-13 Kyocera Document Solutions Inc 画像読取装置及びこれを備えた画像形成装置
JP2013214378A (ja) * 2012-03-31 2013-10-17 Dainippon Printing Co Ltd 導光板、面光源装置、表示装置
TWI474085B (zh) * 2011-02-15 2015-02-21 Mitsubishi Electric Corp 面光源裝置及液晶顯示裝置
TWI489159B (zh) * 2013-10-30 2015-06-21 Wistron Corp 導光板
WO2016002883A1 (ja) * 2014-07-03 2016-01-07 シャープ株式会社 照明装置および表示装置
JPWO2014199563A1 (ja) * 2013-06-11 2017-02-23 株式会社小糸製作所 車両用灯具
JP2017091931A (ja) * 2015-11-13 2017-05-25 オムロン株式会社 面光源装置
JP2017091932A (ja) * 2015-11-13 2017-05-25 オムロン株式会社 面光源装置、表示装置及び、電子機器
US10488574B2 (en) 2014-09-05 2019-11-26 Japan Display Inc. Display device and light source device
JP2020525968A (ja) * 2018-05-31 2020-08-27 ハスコ ビジョン テクノロジー カンパニー リミテッド Ｌｅｄ光源の面発光モジュール、それを適用する車両用ランプ及び組立方法
US11333816B2 (en) 2017-05-31 2022-05-17 Lumileds Llc Shaping input surfaces of LED light-guides for increased light extraction efficiency
US12265246B2 (en) 2023-06-27 2025-04-01 Minebea Mitsumi Inc. Planar illumination device

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009128647A (ja) * 2007-11-26 2009-06-11 Hitachi Displays Ltd 液晶表示装置
JP4774035B2 (ja) * 2007-12-28 2011-09-14 シャープ株式会社 面光源及び表示装置
TWI418861B (zh) * 2010-03-16 2013-12-11 Coretronic Nanjing Ltd 導光板及使用其之背光模組
CN102081189A (zh) * 2011-02-22 2011-06-01 苏州茂立光电科技有限公司 导光板、照明装置以及导光板的制作方法
US9324250B2 (en) 2011-09-09 2016-04-26 Dolby Laboratories Licensing Corporation High dynamic range displays comprising MEMS/IMOD components
CN103217733A (zh) * 2012-01-19 2013-07-24 扬昕科技(苏州)有限公司 导光板与背光模组
CN202708988U (zh) * 2012-07-03 2013-01-30 深圳安嵘光电产品有限公司 一种导光板及照明灯具
DE102012108855B4 (de) * 2012-09-20 2025-10-09 HELLA GmbH & Co. KGaA Lichtleiter für Fahrzeuge
JP5937032B2 (ja) * 2013-03-21 2016-06-22 株式会社東海理化電機製作所 表示装置
CN104459867A (zh) * 2013-09-23 2015-03-25 纬创资通股份有限公司 导光板及背光模块
US10151441B2 (en) 2014-10-08 2018-12-11 Koito Manufacturing Co., Ltd. Light emitting device and vehicle lamp
CN111751921B (zh) * 2019-03-28 2024-12-31 瑞仪(广州)光电子器件有限公司 导光膜、导光板、背光模组及显示装置
DE102019124073A1 (de) * 2019-09-09 2021-03-11 Lisa Dräxlmaier GmbH Beleuchtungsvorrichtung mit lichtleiter sowie fahrzeug und verfahren
US12265293B2 (en) * 2021-06-15 2025-04-01 Beijing Boe Technology Development Co., Ltd. Display panel and preparation method therefor, and display device
FR3139060B1 (fr) * 2022-08-29 2024-07-12 Psa Automobiles Sa Bloc optique avec diffusion de photons non perpendiculaire à l’entrée de guide de lumière

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09230342A (ja) * 1996-02-27 1997-09-05 Rohm Co Ltd 面発光照明装置
JP2002196151A (ja) * 2000-12-25 2002-07-10 Citizen Electronics Co Ltd 導光板
JP2004078015A (ja) * 2002-08-21 2004-03-11 Nippon Leiz Co Ltd 導光板および平面照明装置
JP2005129271A (ja) * 2002-11-29 2005-05-19 Fujitsu Ltd リフレクタ及び照明装置及び導光板及び表示装置
JP2005285702A (ja) * 2004-03-31 2005-10-13 Citizen Watch Co Ltd 導光部材及びそれを用いた照明装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3213496B2 (ja) * 1994-11-30 2001-10-02 シャープ株式会社 照明装置
US20030184990A1 (en) * 2002-03-26 2003-10-02 Chia-Feng Lin Light-guiding plate module of high reliability
JP3923867B2 (ja) * 2002-07-26 2007-06-06 株式会社アドバンスト・ディスプレイ 面状光源装置及びそれを用いた液晶表示装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09230342A (ja) * 1996-02-27 1997-09-05 Rohm Co Ltd 面発光照明装置
JP2002196151A (ja) * 2000-12-25 2002-07-10 Citizen Electronics Co Ltd 導光板
JP2004078015A (ja) * 2002-08-21 2004-03-11 Nippon Leiz Co Ltd 導光板および平面照明装置
JP2005129271A (ja) * 2002-11-29 2005-05-19 Fujitsu Ltd リフレクタ及び照明装置及び導光板及び表示装置
JP2005285702A (ja) * 2004-03-31 2005-10-13 Citizen Watch Co Ltd 導光部材及びそれを用いた照明装置

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010050489A1 (ja) * 2008-10-30 2010-05-06 日本ゼオン株式会社 光源装置および液晶表示装置
US8199281B2 (en) 2008-12-29 2012-06-12 Funai Electric Co., Ltd. Backlight of liquid crystal display device
JP2010232529A (ja) * 2009-03-27 2010-10-14 Toyoda Gosei Co Ltd 発光装置及びバックライト装置
TWI474085B (zh) * 2011-02-15 2015-02-21 Mitsubishi Electric Corp 面光源裝置及液晶顯示裝置
JP2012249208A (ja) * 2011-05-31 2012-12-13 Kyocera Document Solutions Inc 画像読取装置及びこれを備えた画像形成装置
US9007627B2 (en) 2011-05-31 2015-04-14 Kyocera Document Solutions Inc. Image reading apparatus and image forming apparatus
JP2013214378A (ja) * 2012-03-31 2013-10-17 Dainippon Printing Co Ltd 導光板、面光源装置、表示装置
JPWO2014199563A1 (ja) * 2013-06-11 2017-02-23 株式会社小糸製作所 車両用灯具
TWI489159B (zh) * 2013-10-30 2015-06-21 Wistron Corp 導光板
WO2016002883A1 (ja) * 2014-07-03 2016-01-07 シャープ株式会社 照明装置および表示装置
US10488574B2 (en) 2014-09-05 2019-11-26 Japan Display Inc. Display device and light source device
JP2017091931A (ja) * 2015-11-13 2017-05-25 オムロン株式会社 面光源装置
JP2017091932A (ja) * 2015-11-13 2017-05-25 オムロン株式会社 面光源装置、表示装置及び、電子機器
US11333816B2 (en) 2017-05-31 2022-05-17 Lumileds Llc Shaping input surfaces of LED light-guides for increased light extraction efficiency
JP2020525968A (ja) * 2018-05-31 2020-08-27 ハスコ ビジョン テクノロジー カンパニー リミテッド Ｌｅｄ光源の面発光モジュール、それを適用する車両用ランプ及び組立方法
US12265246B2 (en) 2023-06-27 2025-04-01 Minebea Mitsumi Inc. Planar illumination device

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Publication number Publication date
US20080002429A1 (en) 2008-01-03
DE102007029659A1 (de) 2008-01-17

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