JP5449757B2 - バックライトユニット及びこれを含む液晶表示装置 - Google Patents
バックライトユニット及びこれを含む液晶表示装置 Download PDFInfo
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- JP5449757B2 JP5449757B2 JP2008318769A JP2008318769A JP5449757B2 JP 5449757 B2 JP5449757 B2 JP 5449757B2 JP 2008318769 A JP2008318769 A JP 2008318769A JP 2008318769 A JP2008318769 A JP 2008318769A JP 5449757 B2 JP5449757 B2 JP 5449757B2
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- 239000004973 liquid crystal related substance Substances 0.000 title claims description 54
- 238000000034 method Methods 0.000 description 24
- 238000010586 diagram Methods 0.000 description 7
- 235000019557 luminance Nutrition 0.000 description 7
- 230000035807 sensation Effects 0.000 description 4
- 235000019615 sensations Nutrition 0.000 description 4
- NUOYJPPISCCYDH-BYPYZUCNSA-N (2s)-1-(2,2,2-trifluoroacetyl)pyrrolidine-2-carbonyl chloride Chemical compound FC(F)(F)C(=O)N1CCC[C@H]1C(Cl)=O NUOYJPPISCCYDH-BYPYZUCNSA-N 0.000 description 3
- 210000002858 crystal cell Anatomy 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 239000003086 colorant Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Images
Classifications
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- 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
- G02F1/133603—Direct backlight with LEDs
-
- 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
- G02F1/133609—Direct backlight including means for improving the color mixing, e.g. white
-
- 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
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133613—Direct backlight characterized by the sequence of light sources
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Liquid Crystal (AREA)
- Planar Illumination Modules (AREA)
- Liquid Crystal Display Device Control (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
Description
第3光度及び第3色座標値を有する第3複数の発光ダイオードLEDと;第4光度及び第4色座標値を有する第4複数の発光ダイオードLEDとを含み、少なくとも前記第1及び第2複数の発光ダイオードは互いに散在配置されて目標光度に対応される平均光度の光を提供して、少なくとも前記第3及び第4複数の発光ダイオードは互いに結合して目標色座標値に対応される平均色座標値の光を提供することを特徴とする液晶表示装置用バックライトユニットを提供する。前記第1及び第2色座標値は前記目標色座標値と同じであったり、前記第1及び第2色座標値の平均値は前記目標色座標値に対応される。
(2)全て同一光度を有して2種以上の相異なる色座標値を有するように構成される第2方法及び、
(3)2種以上の相異なる色座標値を有してまた、2種以上の相異なる光度を有するように構成される第3方法を含んで3種の構成方法が可能である。
Claims (6)
- 第1光度及び第1色座標値を有する第1複数の発光ダイオードと;
第2光度及び第2色座標値を有する第2複数の発光ダイオードと;
第3光度及び第3色座標値を有する第3複数の発光ダイオードと;
第4光度及び第4色座標値を有する第4複数の発光ダイオードと;
第5光度及び第5色座標値を有する第5複数の発光ダイオードと、を含み、
少なくとも前記第1及び第2複数の発光ダイオードは互いに散在配置されて所定の目標光度における平均光度の光を提供して、少なくとも前記第3及び第4複数の発光ダイオードは互いに結合して所定の目標色座標値における平均色座標値の光を提供し、前記第1、第2及び第5光度は相異なり、前記第3、第4及び第5色座標値は相異なり、前記第5光度は前記平均光度と同一であり、前記第5色座標値は前記平均色座標値と同一であることを特徴とする液晶表示装置用バックライトユニット。 - 前記第1及び第2色座標値は、それぞれ前記目標色座標値を有することを特徴とする請求項1に記載の液晶表示装置用バックライトユニット。
- 前記第1及び第2色座標値は、前記目標色座標値における前記平均色座標値を提供することを特徴とする請求項1に記載の液晶表示装置用バックライトユニット。
- 前記第3及び第4光度は、それぞれ前記目標光度を有することを特徴とする請求項1に記載の液晶表示装置用バックライトユニット。
- 前記第3及び第4光度は、前記目標光度における前記平均光度を提供することを特徴とする請求項1に記載の液晶表示装置用バックライトユニット。
- 少なくとも前記第1及び第2複数の発光ダイオードは、互いに結合して前記目標色座標値における前記平均色座標値の光を提供して、前記第3及び第4複数の発光ダイオードは互いに散在配置されて前記目標光度における前記平均光度の光を提供することを特徴とする請求項1に記載の液晶表示装置用バックライトユニット。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020080066480A KR101269592B1 (ko) | 2008-07-09 | 2008-07-09 | 액정표시모듈의 엘이디 백라이트 구성방법 |
KR10-2008-0066480 | 2008-07-09 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2010020276A JP2010020276A (ja) | 2010-01-28 |
JP5449757B2 true JP5449757B2 (ja) | 2014-03-19 |
Family
ID=41016442
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2008318769A Active JP5449757B2 (ja) | 2008-07-09 | 2008-12-15 | バックライトユニット及びこれを含む液晶表示装置 |
Country Status (6)
Country | Link |
---|---|
US (1) | US8328379B2 (ja) |
EP (1) | EP2144110A1 (ja) |
JP (1) | JP5449757B2 (ja) |
KR (1) | KR101269592B1 (ja) |
CN (1) | CN101625478B (ja) |
TW (1) | TWI420199B (ja) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI383345B (zh) * | 2009-05-22 | 2013-01-21 | Chunghwa Picture Tubes Ltd | 顯示器與其所使用的光源裝置 |
JP5317064B2 (ja) | 2009-11-30 | 2013-10-16 | シャープ株式会社 | 面光源、液晶表示装置および照明装置 |
JP2011254064A (ja) * | 2010-05-06 | 2011-12-15 | Funai Electric Co Ltd | 面発光装置 |
CN102478174A (zh) * | 2010-11-24 | 2012-05-30 | 康佳集团股份有限公司 | Led灯条的led混合方法、led灯条、背光模组 |
WO2012156860A1 (en) * | 2011-05-18 | 2012-11-22 | Koninklijke Philips Electronics N.V. | Light emitting device for edge-lit or direct-lit lcd monitor/display |
KR102236695B1 (ko) | 2014-11-05 | 2021-04-07 | 삼성디스플레이 주식회사 | 백라이트 유닛, 이를 포함하는 표시장치 및 이의 제조 방법 |
CN108628014A (zh) * | 2017-12-13 | 2018-10-09 | 深圳禾苗通信科技有限公司 | 一种降低液晶显示屏色差组装方法 |
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JP2001155524A (ja) * | 1999-11-26 | 2001-06-08 | Sanyo Electric Co Ltd | 面光源装置 |
JP4078825B2 (ja) | 2001-10-30 | 2008-04-23 | ソニー株式会社 | 回路基板の製造方法、並びに表示装置の製造方法 |
US7002546B1 (en) * | 2002-05-15 | 2006-02-21 | Rockwell Collins, Inc. | Luminance and chromaticity control of an LCD backlight |
US7066623B2 (en) * | 2003-12-19 | 2006-06-27 | Soo Ghee Lee | Method and apparatus for producing untainted white light using off-white light emitting diodes |
JP2006127798A (ja) * | 2004-10-26 | 2006-05-18 | Toshiba Matsushita Display Technology Co Ltd | 照明装置および液晶表示装置 |
JP4670315B2 (ja) * | 2004-11-09 | 2011-04-13 | ソニー株式会社 | バックライト装置及び表示装置 |
JP2006324134A (ja) * | 2005-05-19 | 2006-11-30 | Koha Co Ltd | 面状発光装置 |
JP2007065414A (ja) * | 2005-08-31 | 2007-03-15 | Sharp Corp | バックライト製造方法 |
WO2007125623A1 (ja) * | 2006-04-28 | 2007-11-08 | Sharp Kabushiki Kaisha | 照明装置およびこれを備えた液晶表示装置 |
US20070274093A1 (en) * | 2006-05-25 | 2007-11-29 | Honeywell International, Inc. | LED backlight system for LCD displays |
US7671832B2 (en) * | 2006-07-10 | 2010-03-02 | Philips Lumileds Lighting Company, Llc | Multi-colored LED backlight with color-compensated clusters near edge |
TWI407196B (zh) * | 2006-11-03 | 2013-09-01 | Innolux Corp | 發光二極體背光模組及其應用 |
JP5050498B2 (ja) * | 2006-11-21 | 2012-10-17 | ソニー株式会社 | 光源装置、バックライト装置、液晶表示装置及びバックライト装置の製造方法 |
US7736017B2 (en) * | 2006-12-21 | 2010-06-15 | Osram Opto Semiconductors Gmbh | Illumination device and display with illumination device |
KR101343495B1 (ko) * | 2006-12-29 | 2013-12-19 | 엘지디스플레이 주식회사 | 액정표시장치의 백라이트 제어 회로 |
TWI359999B (en) * | 2007-07-10 | 2012-03-11 | Hannstar Display Corp | Polarized light-emitting device |
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JP4395801B2 (ja) * | 2007-11-13 | 2010-01-13 | ソニー株式会社 | 面状光源装置及び液晶表示装置組立体 |
TWI371630B (en) * | 2007-12-06 | 2012-09-01 | Au Optronics Corp | Backlight module and method of manufacture using complementary light sources having the same color |
JP5000479B2 (ja) * | 2007-12-27 | 2012-08-15 | シャープ株式会社 | 面光源、表示装置及びその製造方法 |
KR101280390B1 (ko) * | 2008-05-13 | 2013-07-01 | 엘지디스플레이 주식회사 | 엘이디 백라이트 유닛 및 이를 이용한 액정표시장치모듈 |
-
2008
- 2008-07-09 KR KR1020080066480A patent/KR101269592B1/ko active IP Right Grant
- 2008-12-04 EP EP20080021102 patent/EP2144110A1/en not_active Withdrawn
- 2008-12-09 CN CN2008101851301A patent/CN101625478B/zh active Active
- 2008-12-15 JP JP2008318769A patent/JP5449757B2/ja active Active
- 2008-12-19 TW TW097149987A patent/TWI420199B/zh active
- 2008-12-23 US US12/318,279 patent/US8328379B2/en active Active
Also Published As
Publication number | Publication date |
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CN101625478B (zh) | 2012-04-18 |
KR20100006298A (ko) | 2010-01-19 |
US8328379B2 (en) | 2012-12-11 |
EP2144110A1 (en) | 2010-01-13 |
JP2010020276A (ja) | 2010-01-28 |
CN101625478A (zh) | 2010-01-13 |
TWI420199B (zh) | 2013-12-21 |
KR101269592B1 (ko) | 2013-06-05 |
TW201003246A (en) | 2010-01-16 |
US20100008071A1 (en) | 2010-01-14 |
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R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |