JP4816437B2 - 光源装置およびそれを用いた液晶表示装置 - Google Patents
光源装置およびそれを用いた液晶表示装置 Download PDFInfo
- Publication number
- JP4816437B2 JP4816437B2 JP2006340613A JP2006340613A JP4816437B2 JP 4816437 B2 JP4816437 B2 JP 4816437B2 JP 2006340613 A JP2006340613 A JP 2006340613A JP 2006340613 A JP2006340613 A JP 2006340613A JP 4816437 B2 JP4816437 B2 JP 4816437B2
- Authority
- JP
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- Prior art keywords
- light
- light source
- film
- source device
- led
- 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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Images
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
-
- 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
- G02B6/0075—Arrangements of multiple light guides
- G02B6/0076—Stacked arrangements of multiple light guides of the same or different cross-sectional area
-
- 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
- G02B6/0085—Means for removing heat created by the light source from the package
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S362/00—Illumination
- Y10S362/80—Light emitting diode
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Planar Illumination Modules (AREA)
- Liquid Crystal (AREA)
- Led Device Packages (AREA)
- Led Devices (AREA)
Description
2 基板
2A 放熱板
2B 放熱フィン
3,6,103,106 リフレクタ
4,104 混色板
4A,5A 入射面
4B 出射面
5,105 照明板
7,107 光学シート
8,108 LCDパネル
9,109 反射シート
10 リアカバー
11 シャーシ
12 フロントカバー
13A 遮光膜
13B 光吸収膜
13C 透光量制御膜
20,120 光源装置
110 アルミニウムフレーム
111 固定具
Claims (13)
- 一端面から入射された光を一主面から出射する照明用導光板と、入射光端面と出射光端面を備え、前記照明用導光板の背面側に配置される混色用導光板と、前記混色用導光板の前記入射光端面近傍に配置され、互いに異なる色で発光する複数の点光源と、前記点状光源と前記混色用導光板の前記入射光端面との間に配置される光量調節膜と、を備え、前記光量調節膜は、同色の点光源の中で最も光量の大きな点光源の光量を低減させる箇所へ配置されていることを特徴とする光源装置。
- 前記混色用導光板の前記入射光端面に近接して、前記点光源から出射された光を反射させる反射膜をさらに備えることを特徴とする請求項1記載の光源装置。
- 前記光量調節膜は、前記点光源の前記出光部表面に設けられていることを特徴とする請求項1または2に記載の光源装置。
- 前記光量調節膜は、遮光膜または半透明膜であることを特徴とする請求項3に記載の光源装置。
- 前記遮光膜が黒色または灰色の樹脂膜であり、前記樹脂膜が前記点光源の前記出光部表面の一部分に形成されていることを特徴とする請求項4に記載の光源装置。
- 前記光量調節膜は、前記反射膜の表面上に設けられた光吸収膜であることを特徴とする請求項2記載の光源装置。
- 前記光量調節膜は、前記反射膜の表面上の一部分に設けられた黒色または灰色の樹脂膜からなる光吸収膜であることを特徴とする請求項2記載の光源装置。
- 前記光量調節膜は、前記反射膜の表面上に設けられた半透明膜であることを特徴とする請求項2記載の光源装置。
- 前記光量調節膜は、前記混色用導光板の前記入射光端面上に設けられていることを特徴とする請求項1記載の光源装置。
- 前記光量調節膜は半透明膜であることを特徴とする請求項9記載の光源装置。
- 記点光源は発光ダイオードであることを特徴とする請求項1〜請求項10のいずれか一項に記載の光源装置。
- 前記点光源として、少なくともそれぞれ赤色、緑色、青色の単色光を発光する発光ダイオードを複数含むことを特徴とする請求項1〜請求項10のいずれか一項に記載の光源装置。
- 液晶表示パネルと、該液晶表示パネルを照明すると光源装置と、を備える液晶表示装置において、光源装置として、請求項1〜12のいずれか一項に記載の光源装置を用いたことを特徴とする液晶表示装置。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006340613A JP4816437B2 (ja) | 2006-01-04 | 2006-12-19 | 光源装置およびそれを用いた液晶表示装置 |
US11/647,238 US7585098B2 (en) | 2006-01-04 | 2006-12-29 | Light source device and liquid crystal display device using the same |
CN2007100022547A CN1996129B (zh) | 2006-01-04 | 2007-01-04 | 光源器件以及使用它的液晶显示器件 |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006000192 | 2006-01-04 | ||
JP2006000192 | 2006-01-04 | ||
JP2006340613A JP4816437B2 (ja) | 2006-01-04 | 2006-12-19 | 光源装置およびそれを用いた液晶表示装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2007207751A JP2007207751A (ja) | 2007-08-16 |
JP4816437B2 true JP4816437B2 (ja) | 2011-11-16 |
Family
ID=38224165
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2006340613A Active JP4816437B2 (ja) | 2006-01-04 | 2006-12-19 | 光源装置およびそれを用いた液晶表示装置 |
Country Status (3)
Country | Link |
---|---|
US (1) | US7585098B2 (ja) |
JP (1) | JP4816437B2 (ja) |
CN (1) | CN1996129B (ja) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7810977B2 (en) * | 2006-04-19 | 2010-10-12 | Sharp Kabushiki Kaisha | Backlight device and display device using the same |
JP2009534789A (ja) * | 2006-04-21 | 2009-09-24 | 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 | 照明システム |
JP2007329073A (ja) * | 2006-06-09 | 2007-12-20 | Mitsubishi Electric Corp | 面状光源装置 |
US20080191904A1 (en) * | 2007-02-12 | 2008-08-14 | Kai-Jie Tsao | Method For Manufacturing Thin Keypad Assembly And Such Assembly |
JP5413769B2 (ja) | 2007-09-13 | 2014-02-12 | Nltテクノロジー株式会社 | バックライト及び液晶表示装置 |
CN102269387B (zh) * | 2010-06-01 | 2013-08-28 | 中强光电股份有限公司 | 导光单元及光源模组 |
US8534901B2 (en) * | 2010-09-13 | 2013-09-17 | Teledyne Reynolds, Inc. | Collimating waveguide apparatus and method |
US9244299B2 (en) * | 2011-11-22 | 2016-01-26 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | Backlight module of display device |
US9805630B2 (en) * | 2012-03-09 | 2017-10-31 | Apple Inc. | Light guide structures for display backlights |
TWI451170B (zh) * | 2012-04-10 | 2014-09-01 | Au Optronics Corp | 邊框窄化顯示裝置及其製造方法 |
TW201426039A (zh) * | 2012-12-26 | 2014-07-01 | Hon Hai Prec Ind Co Ltd | 導光板 |
CN103697376A (zh) * | 2013-12-09 | 2014-04-02 | 京东方科技集团股份有限公司 | 背光源及显示装置 |
US10690837B2 (en) | 2016-06-21 | 2020-06-23 | Apple Inc. | Backlist displays with bent light guide layers |
CN117908291A (zh) * | 2022-10-11 | 2024-04-19 | 群创光电股份有限公司 | 背光模组 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2975494B2 (ja) * | 1993-01-28 | 1999-11-10 | シャープ株式会社 | バックライト装置及び液晶表示装置 |
JPH08234200A (ja) * | 1995-02-28 | 1996-09-13 | Japan Aviation Electron Ind Ltd | 液晶用バックライト |
US6608332B2 (en) * | 1996-07-29 | 2003-08-19 | Nichia Kagaku Kogyo Kabushiki Kaisha | Light emitting device and display |
JP2000010094A (ja) * | 1998-06-19 | 2000-01-14 | Nec Corp | バックライト装置 |
JP3758878B2 (ja) * | 1999-02-12 | 2006-03-22 | 松下電器産業株式会社 | 携帯端末装置 |
JP2000331522A (ja) * | 1999-05-21 | 2000-11-30 | Matsushita Electric Ind Co Ltd | 照明装置と液晶表示装置 |
US6352350B1 (en) * | 2000-06-01 | 2002-03-05 | Agilent Technologies, Inc. | High efficiency flat illuminator for liquid crystal micro-display |
EP1324620A3 (en) * | 2001-12-28 | 2005-01-05 | Sony Corporation | Display apparatus |
CN1226651C (zh) * | 2002-07-22 | 2005-11-09 | 致伸科技股份有限公司 | 光源调色装置 |
US20040061810A1 (en) | 2002-09-27 | 2004-04-01 | Lumileds Lighting, U.S., Llc | Backlight for a color LCD using wavelength-converted light emitting devices |
JP4156919B2 (ja) | 2002-12-18 | 2008-09-24 | 三菱電機株式会社 | 面状光源装置、液晶表示装置及び表示装置 |
JP2005332719A (ja) * | 2004-05-20 | 2005-12-02 | Mitsubishi Electric Corp | 面状光源装置および該面状光源装置を備えた表示装置 |
US7237938B2 (en) * | 2005-03-25 | 2007-07-03 | Harvatek Corporation | Backlight module |
-
2006
- 2006-12-19 JP JP2006340613A patent/JP4816437B2/ja active Active
- 2006-12-29 US US11/647,238 patent/US7585098B2/en active Active
-
2007
- 2007-01-04 CN CN2007100022547A patent/CN1996129B/zh active Active
Also Published As
Publication number | Publication date |
---|---|
CN1996129A (zh) | 2007-07-11 |
CN1996129B (zh) | 2012-12-12 |
JP2007207751A (ja) | 2007-08-16 |
US20070153539A1 (en) | 2007-07-05 |
US7585098B2 (en) | 2009-09-08 |
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