JP2006140131A - 直下式バックライトモジュール - Google Patents
直下式バックライトモジュール Download PDFInfo
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- JP2006140131A JP2006140131A JP2005192294A JP2005192294A JP2006140131A JP 2006140131 A JP2006140131 A JP 2006140131A JP 2005192294 A JP2005192294 A JP 2005192294A JP 2005192294 A JP2005192294 A JP 2005192294A JP 2006140131 A JP2006140131 A JP 2006140131A
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- 238000009792 diffusion process Methods 0.000 claims abstract description 26
- 230000004907 flux Effects 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 5
- 238000000889 atomisation Methods 0.000 claims description 4
- 230000008569 process Effects 0.000 claims description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 2
- 239000011521 glass Substances 0.000 claims description 2
- 230000003287 optical effect Effects 0.000 abstract description 21
- 238000010586 diagram Methods 0.000 description 13
- 230000000694 effects Effects 0.000 description 4
- 238000005401 electroluminescence Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000002184 metal Substances 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
- 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
- G02F1/133602—Direct backlight
- G02F1/133611—Direct backlight including means for improving the brightness uniformity
-
- 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
- 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
- G02F1/133602—Direct backlight
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
-
- 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
- G02F1/133504—Diffusing, scattering, diffracting elements
- G02F1/133507—Films for enhancing the luminance
-
- 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
- G02F1/133602—Direct backlight
- G02F1/133604—Direct backlight with lamps
-
- 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
- G02F1/133602—Direct backlight
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
- G02F1/133607—Direct backlight including a specially adapted diffusing, scattering or light controlling members the light controlling member including light directing or refracting elements, e.g. prisms or lenses
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Planar Illumination Modules (AREA)
- Liquid Crystal (AREA)
Abstract
【解決手段】
本発明の直下式バックライトモジュールは、複数の発光ユニットを含み、当該発光ユニットからの光束は、反射板により反射された後に、或いは直接に、拡散板に照射し、平面式バックライト光源として用いられる。本発明は、二つの隣接する発光ユニットの間に光補償ユニットを増設することにより、二つの隣接する発光ユニットの間に生じる輝度不均一性(暗影)を改善し、平面式バックライト光源の輝度及び均一性を向上する。
【選択図】 図7
Description
12 反射板
12a 波状の表面
12b 鋸歯状の表面
14 冷陰極蛍光管
16 拡散板
18 遮光ユニット
19 遮光パターン
100 直下式バックライトモジュール
112 反射板
120 冷陰極蛍光管
130 拡散板
130a 全反射プリズム構造
131 入射面
132 出射面
140 光補償ユニット
142 プリズム
144 頂角
150 透明平板
Claims (16)
- 平面式バックライト光源として用いる直下式バックライトモジュールであって、
複数の発光ユニットと、
前記発光ユニットに対向する入射面と、前記発光ユニットに背向する出射面とを有する拡散板と、
前記発光ユニットと前記拡散板との間に設置される複数の光補償ユニットと
を含み、
前記光補償ユニットは、プリズム板であり、当該プリズム板において前記発光ユニットに対向する表面上に複数のプリズムが配置され、当該プリズム板と隣接する前記発光ユニットからの光束を屈折し、前記光補償ユニットに入射させ、当該プリズムにおいて全反射させ、二つの隣接する前記発光ユニットの間に対応する前記拡散板の領域に導向させる
直下式バックライトモジュール。 - 前記発光ユニットは冷陰極蛍光管である
請求項1に記載の直下式バックライトモジュール。 - 前記発光ユニットは発光ダイオードである
請求項1に記載の直下式バックライトモジュール。 - 前記光補償ユニットは、二つの隣接する前記発光ユニットの間の上側に設置される
請求項1に記載の直下式バックライトモジュール。 - 前記プリズム板の中心線を基準に、当該中心線と接近する前記プリズムの頂角の値と当該中心線と離れる前記プリズムの頂角の値とは異なる
請求項1に記載の直下式バックライトモジュール。 - 前記プリズム板は平板状である
請求項1に記載の直下式バックライトモジュール。 - 前記プリズム板において前記拡散板に対向する表面上には、漸層霧化処理が行われた
請求項1に記載の直下式バックライトモジュール。 - 前記プリズム板は、前記拡散板と一体になる
請求項1に記載の直下式バックライトモジュール。 - 前記プリズム板は、アーチ状である
請求項1に記載の直下式バックライトモジュール。 - 前記発光ユニットと前記拡散板との間に設置される透明平板を含み、
前記光補償ユニットは、前記透明平板の表面に設置される
請求項1に記載の直下式バックライトモジュール。 - 前記プリズム板の縁部は連続的な鋸歯状である
請求項1に記載の直下式バックライトモジュール。 - 前記プリズム板の縁部は連続的なアーチ状である
請求項1に記載の直下式バックライトモジュール。 - 前記プリズム板の縁部は連続的な波状である
請求項1に記載の直下式バックライトモジュール。 - 前記プリズム板の材料はグラスである
請求項1に記載の直下式バックライトモジュール。 - 前記プリズム板の材料はアクリル材料である
請求項1に記載の直下式バックライトモジュール。 - 反射板を更に含み、
前記発光ユニットは、前記反射板と前記拡散板との間に設置され、
前記発光ユニットからの光束の一部は、前記反射板により前記拡散板に反射される
請求項1に記載の直下式バックライトモジュール。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW093134199A TWI248543B (en) | 2004-11-10 | 2004-11-10 | Bottom-lit backlight module |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2006140131A true JP2006140131A (ja) | 2006-06-01 |
JP4209870B2 JP4209870B2 (ja) | 2009-01-14 |
Family
ID=36316113
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2005192294A Active JP4209870B2 (ja) | 2004-11-10 | 2005-06-30 | 直下式バックライトモジュール |
Country Status (4)
Country | Link |
---|---|
US (1) | US20060098434A1 (ja) |
JP (1) | JP4209870B2 (ja) |
KR (1) | KR20060046432A (ja) |
TW (1) | TWI248543B (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012081487A1 (ja) * | 2010-12-15 | 2012-06-21 | シャープ株式会社 | 照明装置および表示装置 |
WO2013065116A1 (ja) * | 2011-10-31 | 2013-05-10 | 日立コンシューマエレクトロニクス株式会社 | バックライト装置及びこれを用いた液晶表示装置 |
Families Citing this family (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20070030415A1 (en) * | 2005-05-16 | 2007-02-08 | Epstein Kenneth A | Back-lit displays with high illumination uniformity |
US8128272B2 (en) | 2005-06-07 | 2012-03-06 | Oree, Inc. | Illumination apparatus |
US8272758B2 (en) | 2005-06-07 | 2012-09-25 | Oree, Inc. | Illumination apparatus and methods of forming the same |
US8215815B2 (en) * | 2005-06-07 | 2012-07-10 | Oree, Inc. | Illumination apparatus and methods of forming the same |
US20070047219A1 (en) * | 2005-08-27 | 2007-03-01 | 3M Innovative Properties Company | Direct-lit backlight having light sources with bifunctional diverters |
CN1932603A (zh) * | 2005-09-16 | 2007-03-21 | 鸿富锦精密工业(深圳)有限公司 | 直下式背光模组 |
TW200722852A (en) * | 2005-12-06 | 2007-06-16 | Nano Prec Corp | Edge-type backlight module |
US7789538B2 (en) * | 2006-11-15 | 2010-09-07 | 3M Innovative Properties Company | Back-lit displays with high illumination uniformity |
US20080111947A1 (en) * | 2006-11-15 | 2008-05-15 | 3M Innovative Properties Company | Back-lit displays with high illumination uniformity |
US7766528B2 (en) * | 2006-11-15 | 2010-08-03 | 3M Innovative Properties Company | Back-lit displays with high illumination uniformity |
WO2008061125A1 (en) * | 2006-11-15 | 2008-05-22 | 3M Innovative Properties Company | Back-lit displays with high illumination uniformity |
US7478913B2 (en) * | 2006-11-15 | 2009-01-20 | 3M Innovative Properties | Back-lit displays with high illumination uniformity |
KR100879952B1 (ko) * | 2007-07-02 | 2009-01-23 | 희성전자 주식회사 | 직하 조광형 백라이트 장치 |
US8182128B2 (en) * | 2007-12-19 | 2012-05-22 | Oree, Inc. | Planar white illumination apparatus |
US8172447B2 (en) * | 2007-12-19 | 2012-05-08 | Oree, Inc. | Discrete lighting elements and planar assembly thereof |
WO2009109974A2 (en) * | 2008-03-05 | 2009-09-11 | Oree, Advanced Illumination Solutions Inc. | Illumination apparatus and methods of forming the same |
US8297786B2 (en) | 2008-07-10 | 2012-10-30 | Oree, Inc. | Slim waveguide coupling apparatus and method |
US8301002B2 (en) | 2008-07-10 | 2012-10-30 | Oree, Inc. | Slim waveguide coupling apparatus and method |
CN101381957B (zh) * | 2008-09-11 | 2011-08-31 | 东华大学 | 一种抗变色银盐抗菌织物的整理方法 |
US20100098377A1 (en) * | 2008-10-16 | 2010-04-22 | Noam Meir | Light confinement using diffusers |
US20100208470A1 (en) * | 2009-02-10 | 2010-08-19 | Yosi Shani | Overlapping illumination surfaces with reduced linear artifacts |
US8624527B1 (en) | 2009-03-27 | 2014-01-07 | Oree, Inc. | Independently controllable illumination device |
US8328406B2 (en) * | 2009-05-13 | 2012-12-11 | Oree, Inc. | Low-profile illumination device |
US8727597B2 (en) | 2009-06-24 | 2014-05-20 | Oree, Inc. | Illumination apparatus with high conversion efficiency and methods of forming the same |
US8591072B2 (en) | 2011-11-16 | 2013-11-26 | Oree, Inc. | Illumination apparatus confining light by total internal reflection and methods of forming the same |
WO2014006501A1 (en) | 2012-07-03 | 2014-01-09 | Yosi Shani | Planar remote phosphor illumination apparatus |
KR102599333B1 (ko) * | 2016-12-23 | 2023-11-06 | 엘지디스플레이 주식회사 | 광원 모듈 및 이를 포함하는 백라이트 유닛과 액정 표시 장치 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2776595B1 (fr) * | 1998-03-31 | 2000-06-16 | Valeo Vision | Feu de signalisation comprenant plusieurs sources lumineuses |
DE20200571U1 (de) * | 2002-01-15 | 2002-04-11 | FER Fahrzeugelektrik GmbH, 99817 Eisenach | Fahrzeugleuchte |
US6843582B2 (en) * | 2003-04-25 | 2005-01-18 | Toppoly Optoelectronics Corp. | Back light module |
TWI240829B (en) * | 2003-12-12 | 2005-10-01 | Ind Tech Res Inst | Light-guide type diffusive uniform light device |
-
2004
- 2004-11-10 TW TW093134199A patent/TWI248543B/zh not_active IP Right Cessation
-
2005
- 2005-05-23 US US11/134,300 patent/US20060098434A1/en not_active Abandoned
- 2005-06-13 KR KR1020050050267A patent/KR20060046432A/ko not_active Application Discontinuation
- 2005-06-30 JP JP2005192294A patent/JP4209870B2/ja active Active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012081487A1 (ja) * | 2010-12-15 | 2012-06-21 | シャープ株式会社 | 照明装置および表示装置 |
WO2013065116A1 (ja) * | 2011-10-31 | 2013-05-10 | 日立コンシューマエレクトロニクス株式会社 | バックライト装置及びこれを用いた液晶表示装置 |
Also Published As
Publication number | Publication date |
---|---|
US20060098434A1 (en) | 2006-05-11 |
JP4209870B2 (ja) | 2009-01-14 |
TWI248543B (en) | 2006-02-01 |
TW200615647A (en) | 2006-05-16 |
KR20060046432A (ko) | 2006-05-17 |
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