JP5267298B2 - バックライト装置 - Google Patents
バックライト装置 Download PDFInfo
- Publication number
- JP5267298B2 JP5267298B2 JP2009097471A JP2009097471A JP5267298B2 JP 5267298 B2 JP5267298 B2 JP 5267298B2 JP 2009097471 A JP2009097471 A JP 2009097471A JP 2009097471 A JP2009097471 A JP 2009097471A JP 5267298 B2 JP5267298 B2 JP 5267298B2
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- JP
- Japan
- Prior art keywords
- guide plate
- light
- light guide
- led
- interval
- 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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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
- G02B6/0081—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
-
- 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
- G02B6/0038—Linear indentations or grooves, e.g. arc-shaped grooves or meandering grooves, extending over the full length or width of the 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
- G02B6/0013—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
- G02B6/0066—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
- 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
- G02B6/0086—Positioning aspects
- G02B6/0091—Positioning aspects of the light source relative to the light guide
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Planar Illumination Modules (AREA)
Description
図1は、第1の実施形態に係る画像表示装置10の断面図である。図1は、装置左右方向に垂直な平面で切断したときの画像表示装置10の上方の部分の断面を示している。画像表示装置10は、液晶パネル12、フロントカバー13、シャーシ14、クッション16、光学シート18、およびバックライト装置20を有する。
アクリル:α=7〜8×10^−5[/℃]
ポリカーボネ−ト:α=6〜7×10^−5[/℃]
となる。このため、導光板22の線膨張係数αは、6×10^−5以上8×10^−5以下とする。図5では、線膨張係数αが6×10^−5、7×10^−5、および8×10^−5の3種類の導光板22について、導光板高さL4と間隔Hの変化との関係を示している。
図7は、第2の実施形態に係るバックライト装置100を模式的に示した正面図である。バックライト装置100は、導光板22、第1支持部材60、および第2支持部材62に代えて導光板102および支持部材104が設けられる以外は、第1の実施形態に係るバックライト装置20と同様に構成される。以下、第1の実施形態と同様の個所については同一の符号を付して説明を省略する。
Claims (4)
- 導光板と、
前記導光板の端面の延在方向に配置間隔P2で並設された複数の光源ユニットと、
を備え、
前記光源ユニットは、発光ダイオードと、パッケージ部とを有し、
前記パッケージ部は、複数の発光ダイオードが配置間隔P1で設けられ、前記導光板の前記延在方向と平行である長手方向における両端に、前記発光ダイオードから出射された光を反射し前記導光板の端面に導く一対の傾斜部を有し、
前記発光ダイオードと前記導光板の端面との間隔をHとするとき、P1<P2、かつP1≦H≦P2の関係を満たすよう前記光源ユニットと前記導光板とが配置されることを特徴とするバックライト装置。 - 前記複数の発光ダイオードは、前記配置間隔P1が0.1mm以上3mm以下となるよう設けられ、前記複数の光源ユニットは前記配置間隔P2が5mm以上15mm以下を満たすよう並設され、
前記導光板は、前記間隔Hが1mm以上7mm以下となるよう配置されることを特徴とする請求項1に記載のバックライト装置。 - 前記導光板は、厚さが1mm以上5mm以下であることを特徴とする請求項1または2に記載のバックライト装置。
- 前記複数の発光ダイオードは、前記光源ユニットに設けられる発光ダイオードの数をNとして、N×P1<P2となるよう配置されることを特徴とする請求項1から3のいずれかに記載のバックライト装置。
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009097471A JP5267298B2 (ja) | 2009-04-13 | 2009-04-13 | バックライト装置 |
KR1020117026839A KR101353194B1 (ko) | 2009-04-13 | 2010-04-05 | 백라이트 장치 |
US13/264,352 US8596850B2 (en) | 2009-04-13 | 2010-04-05 | Backlight device |
EP10764226.6A EP2420724B1 (en) | 2009-04-13 | 2010-04-05 | Backlight device |
CN201080016713.7A CN102395826B (zh) | 2009-04-13 | 2010-04-05 | 背光灯装置 |
PCT/JP2010/002485 WO2010119639A1 (ja) | 2009-04-13 | 2010-04-05 | バックライト装置 |
US14/060,442 US8807818B2 (en) | 2009-04-13 | 2013-10-22 | Backlight device |
US14/328,555 US9389357B2 (en) | 2009-04-13 | 2014-07-10 | Backlight device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009097471A JP5267298B2 (ja) | 2009-04-13 | 2009-04-13 | バックライト装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2010251026A JP2010251026A (ja) | 2010-11-04 |
JP5267298B2 true JP5267298B2 (ja) | 2013-08-21 |
Family
ID=42982314
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2009097471A Active JP5267298B2 (ja) | 2009-04-13 | 2009-04-13 | バックライト装置 |
Country Status (6)
Country | Link |
---|---|
US (3) | US8596850B2 (ja) |
EP (1) | EP2420724B1 (ja) |
JP (1) | JP5267298B2 (ja) |
KR (1) | KR101353194B1 (ja) |
CN (1) | CN102395826B (ja) |
WO (1) | WO2010119639A1 (ja) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
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JP5267298B2 (ja) * | 2009-04-13 | 2013-08-21 | 株式会社Jvcケンウッド | バックライト装置 |
WO2012008220A1 (ja) * | 2010-07-12 | 2012-01-19 | シャープ株式会社 | 面発光装置および表示装置 |
WO2012070442A1 (ja) * | 2010-11-25 | 2012-05-31 | シャープ株式会社 | 照明装置、及び表示装置 |
EP2646861A2 (en) * | 2010-12-04 | 2013-10-09 | 3M Innovative Properties Company | Illumination assembly and method of forming same |
JP5159872B2 (ja) | 2010-12-27 | 2013-03-13 | 株式会社東芝 | テレビジョン受像機 |
JP5032651B2 (ja) * | 2010-12-27 | 2012-09-26 | 株式会社東芝 | テレビジョン受像機、及び電子機器 |
TW201400937A (zh) * | 2012-06-22 | 2014-01-01 | Wistron Corp | 背光模組及其顯示設備 |
KR102013161B1 (ko) * | 2012-08-20 | 2019-08-23 | 삼성디스플레이 주식회사 | 백라이트 어셈블리 및 이를 갖는 표시 장치 |
KR20140039425A (ko) * | 2012-09-21 | 2014-04-02 | 삼성디스플레이 주식회사 | 표시장치 |
US9599764B2 (en) * | 2013-01-09 | 2017-03-21 | Sharp Kabushiki Kaisha | Illumination device, display device and TV receiver |
JP2015082017A (ja) * | 2013-10-22 | 2015-04-27 | 株式会社ジャパンディスプレイ | 液晶表示装置 |
JP2015129818A (ja) * | 2014-01-06 | 2015-07-16 | パナソニック液晶ディスプレイ株式会社 | 液晶表示装置 |
CN107427797B (zh) * | 2015-02-17 | 2021-08-03 | 维他拌管理有限公司 | 联锁搅拌*** |
US11253106B2 (en) | 2015-04-24 | 2022-02-22 | Vita-Mix Management Corporation | Interlocking blending system |
EP3666140A1 (en) | 2015-04-24 | 2020-06-17 | Vita-Mix Management Corporation | Interlocking blending system |
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TWI240788B (en) | 2000-05-04 | 2005-10-01 | Koninkl Philips Electronics Nv | Illumination system, light mixing chamber and display device |
JP2004079488A (ja) | 2002-08-22 | 2004-03-11 | Fujitsu Ten Ltd | Ledバックライトユニットおよび液晶表示装置 |
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-
2009
- 2009-04-13 JP JP2009097471A patent/JP5267298B2/ja active Active
-
2010
- 2010-04-05 EP EP10764226.6A patent/EP2420724B1/en active Active
- 2010-04-05 CN CN201080016713.7A patent/CN102395826B/zh active Active
- 2010-04-05 US US13/264,352 patent/US8596850B2/en active Active
- 2010-04-05 KR KR1020117026839A patent/KR101353194B1/ko active IP Right Grant
- 2010-04-05 WO PCT/JP2010/002485 patent/WO2010119639A1/ja active Application Filing
-
2013
- 2013-10-22 US US14/060,442 patent/US8807818B2/en active Active
-
2014
- 2014-07-10 US US14/328,555 patent/US9389357B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
US20120134174A1 (en) | 2012-05-31 |
KR20120001802A (ko) | 2012-01-04 |
CN102395826A (zh) | 2012-03-28 |
US8807818B2 (en) | 2014-08-19 |
US20140043564A1 (en) | 2014-02-13 |
EP2420724A4 (en) | 2018-01-24 |
WO2010119639A1 (ja) | 2010-10-21 |
EP2420724B1 (en) | 2022-08-31 |
JP2010251026A (ja) | 2010-11-04 |
CN102395826B (zh) | 2014-04-16 |
US20140320785A1 (en) | 2014-10-30 |
US9389357B2 (en) | 2016-07-12 |
US8596850B2 (en) | 2013-12-03 |
EP2420724A1 (en) | 2012-02-22 |
KR101353194B1 (ko) | 2014-01-17 |
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