JP2010272262A - 面状照明装置 - Google Patents
面状照明装置 Download PDFInfo
- Publication number
- JP2010272262A JP2010272262A JP2009121541A JP2009121541A JP2010272262A JP 2010272262 A JP2010272262 A JP 2010272262A JP 2009121541 A JP2009121541 A JP 2009121541A JP 2009121541 A JP2009121541 A JP 2009121541A JP 2010272262 A JP2010272262 A JP 2010272262A
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- JP
- Japan
- Prior art keywords
- width
- guide plate
- leds
- light guide
- light
- 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
- G02B6/0013—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
- G02B6/002—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 by shaping at least a portion of the light guide, e.g. with collimating, focussing or diverging surfaces
- G02B6/0021—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 by shaping at least a portion of the light guide, e.g. with collimating, focussing or diverging surfaces for housing at least a part of the light source, e.g. by forming holes or recesses
-
- 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
- G02B6/0013—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
- G02B6/002—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 by shaping at least a portion of the light guide, e.g. with collimating, focussing or diverging surfaces
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Planar Illumination Modules (AREA)
Abstract
【解決手段】
面状照明装置10は、一側面部に沿って凹部12および凸部13が交互に繰り返し形成された導光板11と、凹部12および凸部13にそれぞれ配置される第1列LED21aおよび第2列LED21bからなるLED21とを備えている。凸部13は、幅が略一定の平行部14と、平行部14から離れるにしたがって幅が広がる拡開部15とから構成されている。凸部13の頂面13aの幅W2は、第2列LED21bの開口幅W3より大きく、ランプハウス23の長手方向幅W4よりも大きく設定されている。そして、第2列LED21bは、導光板11方向に向かって投影して見た場合に、隣接する第1列LED21aに対して、それぞれのランプハウス23の一部が互いに重なるように配置されている。
【選択図】図2
Description
11 導光板
12 凹部
12a 凹部の底面
13 凸部
13a 凸部の頂面
13b 凸部の傾斜面
14 平行部
15 拡開部
16 端部
21 LED
21a 第1列LED
21b 第2列LED
22 LEDチップ(ダイス)
23 ランプハウス
23a 有底孔
23b 左側壁
23c 右側壁
23d 上側壁
23e 下側壁
24 封止部
25 電極端子
31 FPC
Claims (3)
- 一側面部に沿って凹部および凸部が交互に繰り返し形成された導光板と、
前記凹部および前記凸部に沿って2列に配置される複数の点状光源と、を備える面状照明装置において、
前記凸部は、幅が略一定の平行部と、前記平行部に連設し前記平行部から離れるにしたがって幅が広がる拡開部と、を有し、
前記点状光源の各々は、発光素子チップと、中央部に前記発光素子チップを収納する有底孔を有し反射性材料を用いて形成されたランプハウスと、を有し、
前記拡開部の先端側の幅が、前記有底孔の開口幅よりも大きく、かつ前記ランプハウスの前記一側面部に沿う方向の幅よりも小さく形成されていることを特徴とする面状照明装置。 - 前記2列に配置される複数の点状光源は、前記導光板方向に向かって投影して見た場合に、互いに隣接する2つの点状光源におけるそれぞれの前記ランプハウスが互いに一部が重なるように配置されている請求項1に記載の面状照明装置。
- 前記2列に配置される前記点状光源は、列ごとに波長特性が異なっている請求項1または2に記載の面状照明装置。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009121541A JP5275897B2 (ja) | 2009-05-20 | 2009-05-20 | 面状照明装置 |
US12/776,754 US8303152B2 (en) | 2009-05-20 | 2010-05-10 | Spread illuminating apparatus |
EP10005026A EP2253973A1 (en) | 2009-05-20 | 2010-05-11 | Side light type illuminated light guide plate with overlapping lamp houses |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009121541A JP5275897B2 (ja) | 2009-05-20 | 2009-05-20 | 面状照明装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2010272262A true JP2010272262A (ja) | 2010-12-02 |
JP5275897B2 JP5275897B2 (ja) | 2013-08-28 |
Family
ID=42556819
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2009121541A Expired - Fee Related JP5275897B2 (ja) | 2009-05-20 | 2009-05-20 | 面状照明装置 |
Country Status (3)
Country | Link |
---|---|
US (1) | US8303152B2 (ja) |
EP (1) | EP2253973A1 (ja) |
JP (1) | JP5275897B2 (ja) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5242798B2 (ja) * | 2009-08-27 | 2013-07-24 | シャープ株式会社 | 導光板ユニット、面光源装置及び表示装置 |
CN103375705B (zh) * | 2012-04-23 | 2015-08-05 | 中强光电股份有限公司 | 光源模组 |
JP2015149119A (ja) * | 2012-05-30 | 2015-08-20 | シャープ株式会社 | 照明装置及び表示装置 |
CN104216170A (zh) * | 2014-08-20 | 2014-12-17 | 合肥京东方光电科技有限公司 | 一种背光源、显示面板和显示装置 |
JP6248054B2 (ja) * | 2015-01-07 | 2017-12-13 | ミネベアミツミ株式会社 | 面状照明装置 |
WO2016183148A1 (en) * | 2015-05-13 | 2016-11-17 | Corning Incorporated | Light guides with reduced hot spots and methods for making the same |
CN105301840A (zh) * | 2015-11-18 | 2016-02-03 | 武汉华星光电技术有限公司 | 背光模组及液晶显示装置 |
CN106291798A (zh) * | 2016-09-07 | 2017-01-04 | 深圳天珑无线科技有限公司 | 一种背光模组及其制作方法 |
US10585233B2 (en) * | 2018-04-23 | 2020-03-10 | Troy-Csl Lighting, Inc. | Edge lit panel lighting devices with multiple groups of LEDs |
CN110568665B (zh) * | 2018-12-05 | 2023-03-21 | 友达光电股份有限公司 | 显示装置 |
CN113777692A (zh) * | 2021-09-23 | 2021-12-10 | 武汉华星光电技术有限公司 | 背光模组及显示装置 |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11353920A (ja) * | 1998-06-05 | 1999-12-24 | Citizen Electronics Co Ltd | 多色発光型面状光源ユニット |
JP2003123525A (ja) * | 2001-10-16 | 2003-04-25 | Enplas Corp | 面光源装置、画像表示装置及び導光板 |
JP2004087408A (ja) * | 2002-08-29 | 2004-03-18 | Citizen Electronics Co Ltd | 導光板 |
JP2006156193A (ja) * | 2004-11-30 | 2006-06-15 | Optrex Corp | 面状照明装置 |
JP2007073399A (ja) * | 2005-09-08 | 2007-03-22 | Sanyo Epson Imaging Devices Corp | 照明装置及び電気光学装置 |
US20070253218A1 (en) * | 2004-09-10 | 2007-11-01 | Sharp Kabushiki Kaisha | Backlight Device and Liquid Crystal Display |
JP2008091354A (ja) * | 2005-11-22 | 2008-04-17 | Sharp Corp | 発光素子及びその製造方法ならびに発光素子を備えたバックライトユニット及びその製造方法 |
JP2008140596A (ja) * | 2006-11-30 | 2008-06-19 | Minebea Co Ltd | 面状照明装置 |
JP2008210527A (ja) * | 2005-06-13 | 2008-09-11 | Sharp Corp | 導光板、面光源および液晶表示装置 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWM284913U (en) * | 2005-09-09 | 2006-01-01 | Innolux Display Corp | Light guide plate, backlight module and liquid crystal display device |
JP4329781B2 (ja) * | 2006-05-12 | 2009-09-09 | エプソンイメージングデバイス株式会社 | 照明装置及び液晶装置 |
TW200834954A (en) * | 2007-02-02 | 2008-08-16 | Lighthouse Technology Co Ltd | Light-emitting diode and backlight module comprising the same |
JP4626645B2 (ja) * | 2007-11-27 | 2011-02-09 | ソニー株式会社 | 表示装置及び光学装置 |
-
2009
- 2009-05-20 JP JP2009121541A patent/JP5275897B2/ja not_active Expired - Fee Related
-
2010
- 2010-05-10 US US12/776,754 patent/US8303152B2/en active Active
- 2010-05-11 EP EP10005026A patent/EP2253973A1/en not_active Withdrawn
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11353920A (ja) * | 1998-06-05 | 1999-12-24 | Citizen Electronics Co Ltd | 多色発光型面状光源ユニット |
JP2003123525A (ja) * | 2001-10-16 | 2003-04-25 | Enplas Corp | 面光源装置、画像表示装置及び導光板 |
JP2004087408A (ja) * | 2002-08-29 | 2004-03-18 | Citizen Electronics Co Ltd | 導光板 |
US20070253218A1 (en) * | 2004-09-10 | 2007-11-01 | Sharp Kabushiki Kaisha | Backlight Device and Liquid Crystal Display |
JP2006156193A (ja) * | 2004-11-30 | 2006-06-15 | Optrex Corp | 面状照明装置 |
JP2008210527A (ja) * | 2005-06-13 | 2008-09-11 | Sharp Corp | 導光板、面光源および液晶表示装置 |
US20090080216A1 (en) * | 2005-06-13 | 2009-03-26 | Sharp Kabushiki Kaisha | Light guide plate, surface light source, and liquid crystal display device |
JP2007073399A (ja) * | 2005-09-08 | 2007-03-22 | Sanyo Epson Imaging Devices Corp | 照明装置及び電気光学装置 |
JP2008091354A (ja) * | 2005-11-22 | 2008-04-17 | Sharp Corp | 発光素子及びその製造方法ならびに発光素子を備えたバックライトユニット及びその製造方法 |
JP2008140596A (ja) * | 2006-11-30 | 2008-06-19 | Minebea Co Ltd | 面状照明装置 |
Also Published As
Publication number | Publication date |
---|---|
JP5275897B2 (ja) | 2013-08-28 |
US20100296284A1 (en) | 2010-11-25 |
US8303152B2 (en) | 2012-11-06 |
EP2253973A1 (en) | 2010-11-24 |
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