JP3924559B2 - バックライトアセンブリ - Google Patents
バックライトアセンブリ Download PDFInfo
- Publication number
- JP3924559B2 JP3924559B2 JP2003404586A JP2003404586A JP3924559B2 JP 3924559 B2 JP3924559 B2 JP 3924559B2 JP 2003404586 A JP2003404586 A JP 2003404586A JP 2003404586 A JP2003404586 A JP 2003404586A JP 3924559 B2 JP3924559 B2 JP 3924559B2
- Authority
- JP
- Japan
- Prior art keywords
- light
- guide plate
- backlight assembly
- lamp
- light guide
- 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.)
- Expired - Fee Related
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Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
-
- 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
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
- G02B6/0053—Prismatic sheet or layer; Brightness enhancement element, sheet or layer
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Planar Illumination Modules (AREA)
- Liquid Crystal (AREA)
Description
また、前記入光防止部は、弾性を有するPET材質からなることが好ましい。
また、前記導光板の前記反射板と対向する表面には、所定の間隔をおいて設けられた多くのプリズム山が形成されていることが好ましい。
また、前記逆プリズムシートのプリズム山のいずれか一辺は、ラウンド形状(即ち丸みを帯びた形状)を有することが好ましい。
10 導光板
12 入光面
14 出光面
16 反射面
20 ランプユニット
22 ランプ
24 ランプ反射板
30 反射板
40a,40b 入光防止部
50 プリズムシート
Claims (9)
- 液晶表示装置に使用されるバックライトアセンブリにおいて、
光を発生するランプと、
前記ランプから放出された光が入光される入光面と前記入光された光が出光される出光面とを有する導光板と、
前記ランプを収容し前記入光面と対向するように前記導光板と結合されるランプ反射板と、
前記出光面と前記ランプ反射板との間に介在させられて、長手方向に対する断面が略コの字形状を有し、前記ランプ反射板の端部領域を囲むように設けられて前記ランプ反射板の端部に挿入され、前記略コの字形状のうち、前記出光面と前記ランプ反射板との間に介在させられた部分が、前記入光面と前記出光面との間の角領域まで延在して、前記角領域に入光されることを防止する入光防止部と、
を含むことを特徴とするバックライトアセンブリ。 - 前記入光面と出光面との間の角領域により前記入光防止部が凹陥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アセンブリ。
- 前記入光防止部は、弾性を有するPET材質からなることを特徴とする請求項2に記載のバックライトアセンブリ。
- 前記入光防止部は、黒色または灰色の材質からなることを特徴とする請求項1に記載のバックライトアセンブリ。
- 前記導光板の後方に配置されて、前記導光板に向けて光を反射し、前記入光面を越えて前記ランプに向けて突出されるように設けられる反射板をさらに含むことを特徴とする請求項1に記載のバックライトアセンブリ。
- 前記導光板の前記反射板と対向する表面には、所定の間隔をおいて設けられた多くのプリズム山が形成されていることを特徴とする請求項5に記載のバックライトアセンブリ。
- 前記出光面と対向するように配置され、前記出光面と対向する表面に所定の間隔をおいて多くのプリズム山が形成された逆プリズムシートをさらに含むことを特徴とする請求項1記載のバックライトアセンブリ。
- 前記逆プリズムシートのプリズム山のいずれか一辺は、ラウンド形状を有することを特徴とする請求項7に記載のバックライトアセンブリ。
- 前記導光板のプリズム山と前記逆プリズムシートのプリズム山は、相互に直交する方向に形成されることを特徴とする請求項7に記載のバックライトアセンブリ。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020020076234A KR100897504B1 (ko) | 2002-12-03 | 2002-12-03 | 백라이트 어셈블리 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2007005929A Division JP2007179060A (ja) | 2002-12-03 | 2007-01-15 | バックライトアセンブリ |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2004185010A JP2004185010A (ja) | 2004-07-02 |
JP3924559B2 true JP3924559B2 (ja) | 2007-06-06 |
Family
ID=32768458
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2003404586A Expired - Fee Related JP3924559B2 (ja) | 2002-12-03 | 2003-12-03 | バックライトアセンブリ |
JP2007005929A Pending JP2007179060A (ja) | 2002-12-03 | 2007-01-15 | バックライトアセンブリ |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2007005929A Pending JP2007179060A (ja) | 2002-12-03 | 2007-01-15 | バックライトアセンブリ |
Country Status (5)
Country | Link |
---|---|
US (1) | US7147357B2 (ja) |
JP (2) | JP3924559B2 (ja) |
KR (1) | KR100897504B1 (ja) |
CN (1) | CN1271460C (ja) |
TW (1) | TWI259309B (ja) |
Families Citing this family (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20060001251A (ko) * | 2004-06-30 | 2006-01-06 | 엘지.필립스 엘시디 주식회사 | 백 라이트 유닛 |
JP4411186B2 (ja) * | 2004-11-08 | 2010-02-10 | Nec液晶テクノロジー株式会社 | 液晶表示装置 |
JP4604801B2 (ja) * | 2004-12-27 | 2011-01-05 | 三菱電機株式会社 | 面状光源装置および該装置を用いた表示装置 |
KR101172253B1 (ko) * | 2005-05-10 | 2012-08-08 | 엘지디스플레이 주식회사 | 액정표시장치용 백라이트 유닛 |
WO2006137132A1 (ja) * | 2005-06-22 | 2006-12-28 | Fujitsu Limited | 表示ユニット、表示装置、および情報処理装置 |
KR100745348B1 (ko) * | 2005-12-09 | 2007-08-02 | 삼성에스디아이 주식회사 | 액정표시장치의 백라이트 어셈블리 |
CN100464435C (zh) * | 2005-12-17 | 2009-02-25 | 群康科技(深圳)有限公司 | 发光二极管及采用该发光二极管的背光模组 |
KR20070079204A (ko) * | 2006-02-01 | 2007-08-06 | 삼성전자주식회사 | 광학판의 제조방법, 이에 의한 광학판 및 광학판을포함하는 액정표시장치 |
US7488087B2 (en) * | 2006-05-19 | 2009-02-10 | Honeywell International Inc. | Light guide and display including a light guide |
US20080013337A1 (en) * | 2006-07-13 | 2008-01-17 | Chia-Ching Lien | Backlight module and liquid crystal display |
JP4807205B2 (ja) | 2006-09-19 | 2011-11-02 | オムロン株式会社 | 面光源装置 |
TWI332596B (en) * | 2006-12-22 | 2010-11-01 | Au Optronics Corp | Lamp reflector for use in a backlight module, and method for making same |
CN101266354B (zh) * | 2007-03-15 | 2013-09-18 | 群创光电股份有限公司 | 背光模组及其应用装置 |
KR100881097B1 (ko) * | 2007-03-15 | 2009-02-02 | 한국단자공업 주식회사 | 백라이트 램프 고정 소켓 |
CN101471192B (zh) * | 2007-12-27 | 2011-04-06 | 比亚迪股份有限公司 | 一种按键结构及其制作方法 |
CN102374449A (zh) * | 2010-08-09 | 2012-03-14 | 荣晋精密科技股份有限公司 | 发光单元及具有该发光单元的背光模块 |
WO2012056951A1 (ja) * | 2010-10-26 | 2012-05-03 | シャープ株式会社 | 照明装置、及び表示装置 |
CN102109131B (zh) * | 2010-11-09 | 2012-07-04 | 深圳市华星光电技术有限公司 | 背光模块及显示装置 |
CN102563447A (zh) * | 2010-12-30 | 2012-07-11 | 苏州世鼎电子有限公司 | 具有高工艺良率的led背光模块及其制造方法 |
US8922731B2 (en) | 2012-03-28 | 2014-12-30 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | Backlight module and LCD device comprising backlight module |
CN102620206A (zh) * | 2012-03-28 | 2012-08-01 | 深圳市华星光电技术有限公司 | 一种背光模组及采用该背光模组的液晶显示装置 |
TWI475299B (zh) * | 2012-07-30 | 2015-03-01 | Au Optronics Corp | 背光模組及其組裝方法 |
JP2015040920A (ja) * | 2013-08-20 | 2015-03-02 | 船井電機株式会社 | 表示装置 |
KR20150116986A (ko) | 2014-04-08 | 2015-10-19 | 삼성디스플레이 주식회사 | 퀀텀 도트 시트 및 이를 포함하는 라이트 유닛과 액정 표시 장치 |
US10317609B2 (en) | 2015-11-12 | 2019-06-11 | Samsung Display Co., Ltd. | Display device |
CN107884990B (zh) * | 2017-11-30 | 2022-02-22 | 武汉天马微电子有限公司 | 一种背光模组及显示装置 |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0736033A (ja) | 1993-07-19 | 1995-02-07 | Ohtsu Tire & Rubber Co Ltd :The | 導光板装置 |
JP2830972B2 (ja) * | 1995-03-06 | 1998-12-02 | 株式会社日立製作所 | 液晶表示装置 |
JP3371052B2 (ja) * | 1995-03-30 | 2003-01-27 | 株式会社エンプラス | サイドライト型面光源装置 |
JP3234483B2 (ja) | 1996-01-16 | 2001-12-04 | 株式会社エンプラス | サイドライト型面光源装置 |
JP3360785B2 (ja) * | 1996-07-29 | 2002-12-24 | 株式会社エンプラス | サイドライト型面光源装置 |
JP3805527B2 (ja) | 1997-05-14 | 2006-08-02 | 株式会社エンプラス | サイドライト型面光源装置、液晶表示装置及び導光板 |
JPH10319400A (ja) * | 1997-05-17 | 1998-12-04 | Enplas Corp | サイドライト型面光源装置 |
US6259854B1 (en) * | 1997-05-29 | 2001-07-10 | Kuraray Co., Ltd. | Lightguide |
JP3422917B2 (ja) * | 1997-11-05 | 2003-07-07 | 株式会社エンプラス | サイドライト型面光源装置及び液晶表示装置 |
US6305811B1 (en) * | 1998-09-25 | 2001-10-23 | Honeywell International Inc. | Illumination system having an array of linear prisms |
KR20000060073A (ko) * | 1999-03-11 | 2000-10-16 | 구본준 | 액정표시장치의 백라이트 |
JP2001035232A (ja) | 1999-07-27 | 2001-02-09 | Ohtsu Tire & Rubber Co Ltd :The | バックライト用光源カバー及びバックライト |
JP3233397B2 (ja) * | 1999-09-14 | 2001-11-26 | インターナショナル・ビジネス・マシーンズ・コーポレーション | 液晶表示装置およびサイドライト型光源装置 |
KR100806093B1 (ko) * | 2000-04-27 | 2008-02-21 | 가부시키가이샤 구라레 | 면광원소자 및 이를 사용한 표시장치 |
KR100783607B1 (ko) | 2000-06-23 | 2007-12-07 | 삼성전자주식회사 | 액정표시장치용 백라이트 유니트 |
EP1852737A1 (en) * | 2000-12-13 | 2007-11-07 | Mitsubishi Rayon Co. Ltd. | Light source device |
JP2002270024A (ja) * | 2001-03-12 | 2002-09-20 | Toshiba Corp | 面光源装置及びこれを備えた液晶表示装置 |
US6502947B2 (en) * | 2001-03-30 | 2003-01-07 | Mitsubishi Rayon Co., Ltd. | Planar light source device and liquid crystal display apparatus |
-
2002
- 2002-12-03 KR KR1020020076234A patent/KR100897504B1/ko active IP Right Grant
-
2003
- 2003-12-02 TW TW092133879A patent/TWI259309B/zh not_active IP Right Cessation
- 2003-12-03 JP JP2003404586A patent/JP3924559B2/ja not_active Expired - Fee Related
- 2003-12-03 US US10/726,722 patent/US7147357B2/en not_active Expired - Lifetime
- 2003-12-03 CN CNB2003101222932A patent/CN1271460C/zh not_active Expired - Fee Related
-
2007
- 2007-01-15 JP JP2007005929A patent/JP2007179060A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
CN1504810A (zh) | 2004-06-16 |
US20040246403A1 (en) | 2004-12-09 |
US7147357B2 (en) | 2006-12-12 |
CN1271460C (zh) | 2006-08-23 |
JP2004185010A (ja) | 2004-07-02 |
KR100897504B1 (ko) | 2009-05-15 |
TWI259309B (en) | 2006-08-01 |
TW200415414A (en) | 2004-08-16 |
KR20040048486A (ko) | 2004-06-10 |
JP2007179060A (ja) | 2007-07-12 |
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