JP4134072B2 - 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
- JP4134072B2 JP4134072B2 JP2005064807A JP2005064807A JP4134072B2 JP 4134072 B2 JP4134072 B2 JP 4134072B2 JP 2005064807 A JP2005064807 A JP 2005064807A JP 2005064807 A JP2005064807 A JP 2005064807A JP 4134072 B2 JP4134072 B2 JP 4134072B2
- 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.)
- Active
Links
- 238000004519 manufacturing process Methods 0.000 description 8
- 239000002131 composite material Substances 0.000 description 4
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
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
- 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)
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、
前記導光板突片部には入射光源アセンブリ載置用平面部が備えられ、前記導光板突片部の厚さは、前記導光板本体の厚さよりも薄くすることで、該入射光源アセンブリ載置用平面部と前記導光板本体表面の間に段差が形成され、
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、前記回路基板の端部を前記段差の奥壁に当接させて、
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 JP2005327700A (ja) | 2005-11-24 |
JP4134072B2 true 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) |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
CA2621124C (en) * | 2005-08-31 | 2014-03-25 | Universal Avioncis Systems Corporation | Edge mounted led array backlight for flat panel display |
KR100805537B1 (ko) * | 2005-12-02 | 2008-02-20 | 삼성에스디아이 주식회사 | 휴대용 표시장치 |
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 |
JP4548364B2 (ja) | 2006-03-02 | 2010-09-22 | 三菱電機株式会社 | 表示装置 |
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 |
KR101309348B1 (ko) | 2006-12-26 | 2013-09-17 | 엘지디스플레이 주식회사 | 백라이트 유닛 및 이를 구비한 액정표시모듈 |
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 |
JP4941376B2 (ja) * | 2008-03-26 | 2012-05-30 | ソニー株式会社 | 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 |
TWI416222B (zh) * | 2009-04-09 | 2013-11-21 | Wintek Corp | 背光模組 |
JP5387210B2 (ja) * | 2009-07-30 | 2014-01-15 | カシオ計算機株式会社 | バックライト装置及び液晶表示装置 |
TWI446067B (zh) | 2012-06-29 | 2014-07-21 | Au Optronics Corp | 背光模組 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 not_active IP Right Cessation
- 2004-06-29 US US10/880,203 patent/US7101073B2/en active Active
-
2005
- 2005-03-09 JP JP2005064807A patent/JP4134072B2/ja active Active
Also Published As
Publication number | Publication date |
---|---|
US20050254260A1 (en) | 2005-11-17 |
US7101073B2 (en) | 2006-09-05 |
JP2005327700A (ja) | 2005-11-24 |
TW200537192A (en) | 2005-11-16 |
TWI251701B (en) | 2006-03-21 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP4134072B2 (ja) | バックライトユニット | |
US8662730B2 (en) | Display apparatus and method of assembling the same | |
JP4915911B2 (ja) | 液晶表示装置 | |
US7445369B2 (en) | Backlight module with point light sources and liquid crystal display using same | |
EP2075602B1 (en) | Backlight assembly and display device | |
US7891858B2 (en) | Display | |
CN100480815C (zh) | 面状光源装置 | |
US8734001B2 (en) | Backlight assembly including a light source cover including a sidewall cover portion which contacts with an exterior surface of a sidewall of a receiving container and a light source cover portion which covers a light source and a portion of the exiting surface of a light guide plate, display device having the same and method of assembling the display device | |
US8206000B2 (en) | Hollow edge-type backlight module with light-emitting array | |
KR20090060748A (ko) | 표시 장치, 상부 수납 용기 및 표시 장치의 조립 방법 | |
JP2006032020A (ja) | 液晶表示装置 | |
US8482699B2 (en) | Liquid crystal display and backlight module thereof | |
US8226286B2 (en) | Edge-lit backlight module | |
JP2008091275A (ja) | 照明ユニット及び液晶表示装置 | |
US8591091B2 (en) | Surface light source device and display device | |
JP2011071419A (ja) | Led光源ユニットおよびそれを用いた室内照明灯 | |
US8708544B2 (en) | Light source unit and device using same | |
US20120176814A1 (en) | Display module | |
KR101577231B1 (ko) | 액정 표시 장치 | |
JP2005284106A (ja) | バックライト装置および液晶表示装置並びに枠部材 | |
JP2008251298A (ja) | 面状照明装置 | |
KR102066089B1 (ko) | 백라이트 유닛 및 그의 조립 방법 | |
KR102102909B1 (ko) | 백라이트 유닛 | |
CN220381415U (zh) | 支撑结构、背光模组和显示装置 | |
JP2012028043A (ja) | バックライト装置および液晶表示装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20050822 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20071016 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20080116 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20080516 |
|
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20080602 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110606 Year of fee payment: 3 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 4134072 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120606 Year of fee payment: 4 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120606 Year of fee payment: 4 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130606 Year of fee payment: 5 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |