RU2011144379A - Backlight for LCD - Google Patents

Backlight for LCD Download PDF

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Publication number
RU2011144379A
RU2011144379A RU2011144379/28A RU2011144379A RU2011144379A RU 2011144379 A RU2011144379 A RU 2011144379A RU 2011144379/28 A RU2011144379/28 A RU 2011144379/28A RU 2011144379 A RU2011144379 A RU 2011144379A RU 2011144379 A RU2011144379 A RU 2011144379A
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RU
Russia
Prior art keywords
lighting module
light source
liquid crystal
display panel
crystal display
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RU2011144379/28A
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Russian (ru)
Inventor
Герард ХАРБЕРС
Такааки ЯГИ
Йоханнес В.Х.С. СМИТТ
Серж Й. БИРХЭЙЗЕН
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ФИЛИПС ЛЮМИЛЕДС ЛАЙТИНГ КОМПАНИ, ЭлЭлСи
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Publication of RU2011144379A publication Critical patent/RU2011144379A/en

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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
    • G02F1/133605—Direct backlight including specially adapted 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
    • G02F1/133601—Illuminating devices for spatial active dimming
    • 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
    • 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
    • G02F1/133614—Illuminating devices using photoluminescence, e.g. phosphors illuminated by UV or blue light
    • 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
    • G02F1/133617—Illumination with ultraviolet light; Luminescent elements or materials associated to the cell

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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)
  • Planar Illumination Modules (AREA)
  • Liquid Crystal (AREA)
  • Led Device Packages (AREA)

Abstract

1. Структура, содержащая:множество осветительных модулей, при этом каждый осветительный модуль содержит:источник 12 света; иотражающий элемент 10, при этом участок 14 отражающего элемента расположен поверх источника света для отражения света, непосредственно принимаемого от источника света, к более отдаленному участку отражающего элемента 10; ижидкокристаллическую дисплейную панель 26, расположенную поверх множества осветительных модулей, при этом более отдаленный участок отражает свет к жидкокристаллической дисплейной панели 26.2. Структура по п.1, в которой источник 12 света расположен в углу или на краю осветительного модуля.3. Структура по п.1, в которой источник 12 света содержит по меньшей мере один полупроводниковый светоизлучающий диод.4. Структура по п.1, в которой источник 12 света содержит по меньшей мере один полупроводниковый светоизлучающий диод с красным свечением, по меньшей мере один полупроводниковый светоизлучающий диод с зеленым свечением и по меньшей мере один полупроводниковый светоизлучающий диод с синим свечением.5. Структура по п.1, в которой каждый осветительный модуль в структуре имеет одни и те же размер и форму.6. Структура по п.1, в которой:первый осветительный модуль расположен вблизи центра жидкокристаллической дисплейной панели 26;второй осветительный модуль расположен вблизи края жидкокристаллической дисплейной панели; ипервый осветительный модуль имеет меньшую площадь, чем второй осветительный модуль.7. Структура по п.1, в которой по меньшей мере один осветительный модуль является по существу квадратным и имеет длину от 50 до 100 мм по стороне квадрата.8. Структура по п.1, в которой участ1. A structure comprising: a plurality of lighting modules, each lighting module comprising: a light source 12; and a reflective element 10, the reflective element portion 14 being disposed over the light source to reflect light directly received from the light source to a more distant portion of the reflective element 10; and a liquid crystal display panel 26 disposed on top of the plurality of lighting modules, with a more distant portion reflecting light towards the liquid crystal display panel 26.2. The structure of claim 1, wherein the light source 12 is located at a corner or edge of the lighting unit. The structure of claim 1, wherein the light source 12 comprises at least one semiconductor light emitting diode. The structure of claim 1, wherein the light source 12 comprises at least one red semiconductor light emitting diode, at least one green semiconductor light emitting diode, and at least one blue semiconductor light emitting diode. The structure of claim 1, wherein each lighting module in the structure has the same size and shape. The structure of claim 1, wherein: the first lighting module is located near the center of the liquid crystal display panel 26; the second lighting module is located near the edge of the liquid crystal display panel; and the first lighting unit has a smaller area than the second lighting unit. 7. The structure of claim 1, wherein the at least one lighting module is substantially square and has a length of 50 to 100 mm on the side of the square. The structure according to claim 1, in which the participation

Claims (15)

1. Структура, содержащая:1. The structure containing: множество осветительных модулей, при этом каждый осветительный модуль содержит:many lighting modules, while each lighting module contains: источник 12 света; иlight source 12; and отражающий элемент 10, при этом участок 14 отражающего элемента расположен поверх источника света для отражения света, непосредственно принимаемого от источника света, к более отдаленному участку отражающего элемента 10; иa reflective element 10, wherein the portion 14 of the reflective element is located on top of the light source to reflect light directly received from the light source to a more distant portion of the reflective element 10; and жидкокристаллическую дисплейную панель 26, расположенную поверх множества осветительных модулей, при этом более отдаленный участок отражает свет к жидкокристаллической дисплейной панели 26.a liquid crystal display panel 26 located on top of the plurality of lighting modules, the more distant portion reflecting light to the liquid crystal display panel 26. 2. Структура по п.1, в которой источник 12 света расположен в углу или на краю осветительного модуля.2. The structure according to claim 1, in which the light source 12 is located in the corner or on the edge of the lighting module. 3. Структура по п.1, в которой источник 12 света содержит по меньшей мере один полупроводниковый светоизлучающий диод.3. The structure of claim 1, wherein the light source 12 comprises at least one semiconductor light emitting diode. 4. Структура по п.1, в которой источник 12 света содержит по меньшей мере один полупроводниковый светоизлучающий диод с красным свечением, по меньшей мере один полупроводниковый светоизлучающий диод с зеленым свечением и по меньшей мере один полупроводниковый светоизлучающий диод с синим свечением.4. The structure according to claim 1, in which the light source 12 contains at least one semiconductor light emitting diode with a red glow, at least one semiconductor light emitting diode with a green glow and at least one semiconductor light emitting diode with a blue glow. 5. Структура по п.1, в которой каждый осветительный модуль в структуре имеет одни и те же размер и форму.5. The structure according to claim 1, in which each lighting module in the structure has the same size and shape. 6. Структура по п.1, в которой:6. The structure according to claim 1, in which: первый осветительный модуль расположен вблизи центра жидкокристаллической дисплейной панели 26;the first lighting module is located near the center of the liquid crystal display panel 26; второй осветительный модуль расположен вблизи края жидкокристаллической дисплейной панели; иa second lighting module is located near the edge of the liquid crystal display panel; and первый осветительный модуль имеет меньшую площадь, чем второй осветительный модуль.the first lighting module has a smaller area than the second lighting module. 7. Структура по п.1, в которой по меньшей мере один осветительный модуль является по существу квадратным и имеет длину от 50 до 100 мм по стороне квадрата.7. The structure according to claim 1, in which at least one lighting module is essentially square and has a length of from 50 to 100 mm on the side of the square. 8. Структура по п.1, в которой участок 13 отражающего элемента 10 первого осветительного модуля перекрывает участок 14 второго осветительного модуля.8. The structure according to claim 1, in which the portion 13 of the reflective element 10 of the first lighting module overlaps the portion 14 of the second lighting module. 9. Структура по п.1, в которой каждый осветительный модуль имеет толщину меньше чем 20 мм.9. The structure according to claim 1, in which each lighting module has a thickness of less than 20 mm 10. Структура по п.1, в которой отражающий элемент 10 является криволинейным и участок 14 отражает по существу весть свет, непосредственно принимаемый от источника света, вниз к более отдаленному участку отражающего элемента 10.10. The structure according to claim 1, in which the reflective element 10 is curved and the portion 14 reflects substantially the light directly received from the light source, down to a more distant portion of the reflective element 10. 11. Структура по п.1, в которой:11. The structure according to claim 1, in which: отражающий элемент 10 содержит первый участок 44 и второй участок 46;the reflecting element 10 comprises a first portion 44 and a second portion 46; первый участок является более зеркально отражающим, чем второй участок;the first section is more specular than the second section; второй участок является более диффузно отражающим, чем первый участок; иthe second portion is more diffusely reflective than the first portion; and первый участок расположен между источником 12 света и вторым участком.a first portion is located between the light source 12 and the second portion. 12. Структура по п.1, дополнительно содержащая преобразующий длину волны материал 20, удаленный от множества осветительных модулей.12. The structure of claim 1, further comprising a wavelength converting material 20 remote from the plurality of lighting modules. 13. Структура по п.1, в которой:13. The structure according to claim 1, in which: первый участок жидкокристаллической дисплейной панели 26 выровнен поверх первого осветительного модуля;a first portion of the liquid crystal display panel 26 is aligned over the first lighting module; второй участок жидкокристаллической дисплейной панели выровнен поверх второго осветительного модуля; иa second portion of the liquid crystal display panel is aligned on top of the second lighting module; and первому осветительному модулю придана такая конфигурация, что часть света, излучаемого от источника света первого осветительного модуля, падает на второй участок жидкокристаллической дисплейной панели.the first lighting module is configured so that part of the light emitted from the light source of the first lighting module falls on a second portion of the liquid crystal display panel. 14. Структура по п.13, в которой множеству осветительных модулей приданы такие конфигурации, что от 5% до 60% света, падающего на первый участок жидкокристаллической дисплейной панели 26, излучается от другого источника 12 света, а не от источника света первого осветительного модуля.14. The structure of claim 13, wherein the plurality of lighting modules are configured such that 5% to 60% of the light incident on the first portion of the liquid crystal display panel 26 is emitted from another light source 12 rather than from the light source of the first lighting module . 15. Структура по п.1, дополнительно содержащая рассеиватель 22, расположенный между множеством осветительных модулей и жидкокристаллической дисплейной панелью 26. 15. The structure of claim 1, further comprising a diffuser 22 located between the plurality of lighting modules and the liquid crystal display panel 26.
RU2011144379/28A 2009-04-02 2009-04-02 Backlight for LCD RU2011144379A (en)

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Application Number Priority Date Filing Date Title
PCT/IB2009/051398 WO2010112979A1 (en) 2009-04-02 2009-04-02 Backlight for a liquid crystal display

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RU2011144379A true RU2011144379A (en) 2013-05-10

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EP (1) EP2414889A1 (en)
JP (1) JP2012523076A (en)
KR (1) KR20120027200A (en)
CN (1) CN102804041B (en)
BR (1) BRPI0924006A2 (en)
RU (1) RU2011144379A (en)
WO (1) WO2010112979A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2968614B1 (en) * 2010-12-10 2015-05-15 Magneti Marelli France IMPROVED BACKLIGHT DEVICE

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JP4560650B2 (en) * 2004-11-22 2010-10-13 ライツ・アドバンスト・テクノロジー株式会社 Backlight unit
DE602006008194D1 (en) * 2005-01-19 2009-09-17 Nichia Corp Surface emitting light device
JP4635863B2 (en) * 2005-01-19 2011-02-23 日亜化学工業株式会社 Surface emitting device
TWI331694B (en) * 2005-10-20 2010-10-11 Ind Tech Res Inst Back-lighted structure
WO2008013072A1 (en) * 2006-07-25 2008-01-31 Showa Denko K.K. Light emitting device and display device using same
US8421952B2 (en) * 2007-12-03 2013-04-16 Philips Lumileds Lighting Company, Llc Illumination module for sectional illumination

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WO2010112979A1 (en) 2010-10-07
CN102804041A (en) 2012-11-28
CN102804041B (en) 2015-06-17
KR20120027200A (en) 2012-03-21
EP2414889A1 (en) 2012-02-08
BRPI0924006A2 (en) 2016-01-26
JP2012523076A (en) 2012-09-27

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