JP2005327700A - バックライトユニット - Google Patents
バックライトユニット Download PDFInfo
- Publication number
- JP2005327700A JP2005327700A JP2005064807A JP2005064807A JP2005327700A JP 2005327700 A JP2005327700 A JP 2005327700A JP 2005064807 A JP2005064807 A JP 2005064807A JP 2005064807 A JP2005064807 A JP 2005064807A JP 2005327700 A JP2005327700 A JP 2005327700A
- Authority
- JP
- Japan
- Prior art keywords
- guide plate
- light guide
- light source
- backlight unit
- source assembly
- 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
- G02B6/0023—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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V19/00—Fastening of light sources or lamp holders
- F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
-
- 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
- G02B6/0081—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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V19/00—Fastening of light sources or lamp holders
- F21V19/0075—Fastening of light sources or lamp holders of tubular light sources, e.g. ring-shaped fluorescent light sources
- F21V19/008—Fastening of light sources or lamp holders of tubular light sources, e.g. ring-shaped fluorescent light sources of straight tubular light sources, e.g. straight fluorescent tubes, soffit lamps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [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
- G02B6/0066—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)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Planar Illumination Modules (AREA)
- Liquid Crystal (AREA)
Abstract
導光板と入射光源アセンブリの光源モジュールとの位置関係がずれ難いため明度が高く、且つ、製造コストが低いバックライトユニットを提供すること。
【解決手段】
入射光源アセンブリ載置用側板及び導光板載置用突設板を有するハウジングと、回路基板及び該回路基板上に複数個突設される光源モジュールを有する入射光源アセンブリと、前記導光板載置用突設板に載置可能な導光板とを含むバックライトユニットであって、前記導光板は、導光板本体及び該導光板本体の一端面から該端面に垂直な方向且つ前記導光板本体に平行な方向に突設される複数の導光板突片部を有することにより隣接する該導光板突片部間に導光板凹欠部が形成されたものであり、前記入射光源アセンブリは、前記回路基板の他の一部が前記導光板突片部上に載置されると共に前記光源モジュールが前記導光板凹欠部に位置するように前記導光板に載置されるバックライトユニット。
【選択図】 図5
Description
2 入射光源アセンブリ
3 導光板
10、100 バックライトユニット
11 入射光源アセンブリ載置用側板
12 入射光源アセンブリ載置用側板突片部
13 ハウジング側板凹欠部
15 入射光源アセンブリ載置用側板本体
16 導光板載置用突設板
18 ハウジング本体
21 フレキシブルプリント配線板
22 光源モジュール
23 発光面
24 発光ダイオード
31 入光面
110 導光板
111 導光板本体
112、112a、112b 導光板突片部
113 導光板凹欠部
114 入光面
115 段差
116 入射光源アセンブリ載置用平面部
117 段差
118 ハウジング側板接触用平面部
120 入射光源アセンブリ
121 光源モジュール
122 回路基板
123 発光素子
125 発光面
130 ハウジング
131 入射光源アセンブリ載置用側板
135 入射光源アセンブリ載置用側板本体
138 ハウジング本体
A、A’ 距離
B ずれ
Claims (8)
- 入射光源アセンブリ載置用側板及び導光板載置用突設板を有するハウジングと、
回路基板及び該回路基板上に複数個突設される光源モジュールを有し、該回路基板の一部が前記入射光源アセンブリ載置用側板上に載置される入射光源アセンブリと、
前記導光板載置用突設板に載置可能な導光板と
を含むバックライトユニットであって、
前記導光板は、導光板本体及び該導光板本体の一端面から該端面に垂直な方向且つ前記導光板本体に平行な方向に突設される複数の導光板突片部を有することにより隣接する該導光板突片部間に導光板凹欠部が形成されたものであり、
前記入射光源アセンブリは、前記回路基板の他の一部が前記導光板突片部上に載置されると共に前記光源モジュールが前記導光板凹欠部に位置するように前記導光板に載置されることを特徴とするバックライトユニット。 - 前記回路基板がフレキシブルプリント配線板であることを特徴とする請求項1に記載のバックライトユニット。
- 前記回路基板がプリント配線板であることを特徴とする請求項1に記載のバックライトユニット。
- 前記光源モジュールの発光素子が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3のいずれか1項に記載のバックライトユニット。
- 前記光源モジュールの発光素子が冷陰極蛍光灯であることを特徴とする請求項1〜請求項3のいずれか1項に記載のバックライトユニット。
- 前記導光板凹欠部の形状が矩形であることを特徴とする請求項1〜請求項5のいずれか1項に記載のバックライトユニット。
- 前記導光板凹欠部の形状が弓形状であることを特徴とする請求項1〜請求項5のいずれか1項に記載のバックライトユニット。
- 前記導光板凹欠部の形状が多角形状であることを特徴とする請求項1〜請求項5のいずれか1項に記載のバックライトユニット。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW093113441A TWI251701B (en) | 2004-05-13 | 2004-05-13 | Lighting positioning device |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2005327700A true JP2005327700A (ja) | 2005-11-24 |
JP4134072B2 JP4134072B2 (ja) | 2008-08-13 |
Family
ID=35309219
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2005064807A Active JP4134072B2 (ja) | 2004-05-13 | 2005-03-09 | バックライトユニット |
Country Status (3)
Country | Link |
---|---|
US (1) | US7101073B2 (ja) |
JP (1) | JP4134072B2 (ja) |
TW (1) | TWI251701B (ja) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007156399A (ja) * | 2005-12-02 | 2007-06-21 | Samsung Sdi Co Ltd | 携帯用表示装置 |
JP2007163567A (ja) * | 2005-12-09 | 2007-06-28 | Ricoh Co Ltd | 照明装置、画像読取装置、画像形成装置 |
JP2007179751A (ja) * | 2005-12-26 | 2007-07-12 | Matsushita Electric Works Ltd | 平面発光装置、及び平面発光装置を備えた液晶表示装置 |
KR100888638B1 (ko) | 2006-03-02 | 2009-03-12 | 미쓰비시덴키 가부시키가이샤 | 표시장치 |
JP2009238397A (ja) * | 2008-03-26 | 2009-10-15 | Epson Imaging Devices Corp | 照明装置、液晶装置、電子機器 |
JP2011034692A (ja) * | 2009-07-30 | 2011-02-17 | Casio Computer Co Ltd | バックライト装置及び液晶表示装置 |
KR101309348B1 (ko) | 2006-12-26 | 2013-09-17 | 엘지디스플레이 주식회사 | 백라이트 유닛 및 이를 구비한 액정표시모듈 |
KR101515460B1 (ko) * | 2008-12-15 | 2015-05-06 | 삼성디스플레이 주식회사 | 백라이트 어셈블리 및 그를 포함하는 표시 장치 |
Families Citing this family (11)
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TWM263518U (en) * | 2004-07-06 | 2005-05-01 | Au Optronics Corp | Backlight module |
JP2006032020A (ja) * | 2004-07-13 | 2006-02-02 | Sharp Corp | 液晶表示装置 |
TWM276149U (en) * | 2005-04-15 | 2005-09-21 | Innolux Display Corp | Back light module |
EP1922574B1 (en) * | 2005-08-31 | 2018-10-10 | Universal Avionics Systems Corporation | Led backlight for flat panel display |
JP2007240649A (ja) * | 2006-03-06 | 2007-09-20 | Sony Corp | 光学表示装置 |
JP5142499B2 (ja) * | 2006-08-18 | 2013-02-13 | 株式会社ジャパンディスプレイイースト | 液晶表示装置 |
JP4807205B2 (ja) * | 2006-09-19 | 2011-11-02 | オムロン株式会社 | 面光源装置 |
TWI330415B (en) * | 2007-04-02 | 2010-09-11 | Chimei Innolux Corp | Light emitting diode and a backlight module using the same |
JP2009199866A (ja) * | 2008-02-21 | 2009-09-03 | Hitachi Displays Ltd | 液晶表示装置 |
TWI416222B (zh) * | 2009-04-09 | 2013-11-21 | Wintek Corp | 背光模組 |
TWI446067B (zh) | 2012-06-29 | 2014-07-21 | Au Optronics Corp | 背光模組 |
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US4714983A (en) * | 1985-06-10 | 1987-12-22 | Motorola, Inc. | Uniform emission backlight |
JPS6229003A (ja) * | 1985-07-30 | 1987-02-07 | 株式会社トキメック | 背面反射式光拡散装置 |
US5613751A (en) * | 1995-06-27 | 1997-03-25 | Lumitex, Inc. | Light emitting panel assemblies |
US5947578A (en) * | 1995-10-24 | 1999-09-07 | Nu-Tech & Engineering, Inc. | Back lighting device |
JP3373427B2 (ja) * | 1998-03-31 | 2003-02-04 | 日東樹脂工業株式会社 | タンデム型面光源装置 |
TW592308U (en) * | 1999-02-17 | 2004-06-11 | Enplas Corp | Light guiding plate, surface light source device, and liquid crystal display device |
JP4368075B2 (ja) * | 2000-11-06 | 2009-11-18 | シャープ株式会社 | 面型照明装置 |
JP2002221502A (ja) | 2001-01-29 | 2002-08-09 | Fujitsu Ltd | 薄膜の密度測定方法 |
JP2003036718A (ja) | 2002-07-01 | 2003-02-07 | Sharp Corp | 照明装置及び液晶表示装置 |
KR100756368B1 (ko) * | 2002-12-05 | 2007-09-10 | 삼성전자주식회사 | 백 라이트 어셈블리 및 이를 갖는 액정표시장치 |
-
2004
- 2004-05-13 TW TW093113441A patent/TWI251701B/zh active
- 2004-06-29 US US10/880,203 patent/US7101073B2/en active Active
-
2005
- 2005-03-09 JP JP2005064807A patent/JP4134072B2/ja active Active
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007156399A (ja) * | 2005-12-02 | 2007-06-21 | Samsung Sdi Co Ltd | 携帯用表示装置 |
JP4504945B2 (ja) * | 2005-12-02 | 2010-07-14 | 三星モバイルディスプレイ株式會社 | 携帯用表示装置 |
JP2007163567A (ja) * | 2005-12-09 | 2007-06-28 | Ricoh Co Ltd | 照明装置、画像読取装置、画像形成装置 |
JP4579816B2 (ja) * | 2005-12-09 | 2010-11-10 | 株式会社リコー | 照明装置、画像読取装置、画像形成装置 |
JP2007179751A (ja) * | 2005-12-26 | 2007-07-12 | Matsushita Electric Works Ltd | 平面発光装置、及び平面発光装置を備えた液晶表示装置 |
KR100888638B1 (ko) | 2006-03-02 | 2009-03-12 | 미쓰비시덴키 가부시키가이샤 | 표시장치 |
KR101309348B1 (ko) | 2006-12-26 | 2013-09-17 | 엘지디스플레이 주식회사 | 백라이트 유닛 및 이를 구비한 액정표시모듈 |
JP2009238397A (ja) * | 2008-03-26 | 2009-10-15 | Epson Imaging Devices Corp | 照明装置、液晶装置、電子機器 |
KR101515460B1 (ko) * | 2008-12-15 | 2015-05-06 | 삼성디스플레이 주식회사 | 백라이트 어셈블리 및 그를 포함하는 표시 장치 |
JP2011034692A (ja) * | 2009-07-30 | 2011-02-17 | Casio Computer Co Ltd | バックライト装置及び液晶表示装置 |
Also Published As
Publication number | Publication date |
---|---|
TW200537192A (en) | 2005-11-16 |
US20050254260A1 (en) | 2005-11-17 |
US7101073B2 (en) | 2006-09-05 |
JP4134072B2 (ja) | 2008-08-13 |
TWI251701B (en) | 2006-03-21 |
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