RU2010116391A - Тонкая подсветка с использованием низкопрофильных светоизлучающих диодов бокового излучения - Google Patents

Тонкая подсветка с использованием низкопрофильных светоизлучающих диодов бокового излучения Download PDF

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RU2010116391A
RU2010116391A RU2010116391/28A RU2010116391A RU2010116391A RU 2010116391 A RU2010116391 A RU 2010116391A RU 2010116391/28 A RU2010116391/28 A RU 2010116391/28A RU 2010116391 A RU2010116391 A RU 2010116391A RU 2010116391 A RU2010116391 A RU 2010116391A
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light
emitting diode
fiber
light emitting
output surface
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RU2483338C2 (ru
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Серж БИРХЭЙЗЕН (US)
Серж БИРХЭЙЗЕН
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Конинклейке Филипс Электроникс Н.В. (Nl)
Конинклейке Филипс Электроникс Н.В.
ФИЛИПС ЛЬЮМИЛДЗ ЛАЙТИНГ КОМПАНИ, ЭлЭлСи (US)
ФИЛИПС ЛЬЮМИЛДЗ ЛАЙТИНГ КОМПАНИ, ЭлЭлСи
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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
    • G02F1/133611—Direct backlight including means for improving the brightness uniformity
    • 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
    • G02B6/0013—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
    • G02B6/0018—Redirecting means on the surface of the light guide
    • 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
    • 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
    • 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
    • G02B6/0065—Manufacturing aspects; Material aspects
    • 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
    • G02B6/0066—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]
    • 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
    • G02B6/0083—Details of electrical connections of light sources to drivers, circuit boards, or the like
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
    • H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
    • H01L2224/10—Bump connectors; Manufacturing methods related thereto
    • H01L2224/12—Structure, shape, material or disposition of the bump connectors prior to the connecting process
    • H01L2224/14—Structure, shape, material or disposition of the bump connectors prior to the connecting process of a plurality of bump connectors

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  • 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)
  • Light Guides In General And Applications Therefor (AREA)
  • Optical Couplings Of Light Guides (AREA)

Abstract

1. Светоизлучающее устройство, содержащее: ! по меньшей мере один нелазерный светоизлучающий диод (10) бокового излучения, в котором большинство света, излучаемого по нормали к верхней поверхности полупроводникового кристалла светоизлучающего диода, перенаправляется от нормали; и ! световод (42), имеющий выходную поверхность, через которую свет излучается, ! при этом световод имеет по меньшей мере одно углубление в первой поверхности, противоположной выходной поверхности, в котором каждое углубление содержит светоизлучающий диод бокового излучения, при этом стенки углубления образуют часть первой поверхности, ! при этом световод имеет оптические элементы (44, 80), в котором оптические элементы содержат по меньшей мере один оптический элемент, сформированный над соответствующим светоизлучающим диодом бокового излучения, так что свет (51) внутри световода, падающий на оптический элемент, лежащий выше каждого светоизлучающего диода, перенаправляется к выходной поверхности световода для повышения выхода света световода над каждым светоизлучающим диодом, поэтому светоизлучающий диод бокового излучения не кажется темным пятном на выходной поверхности световода. ! 2. Устройство по п.1, в котором оптические элементы содержат угловой отражатель (44), сформированный на верхней стенке по меньшей мере одного углубления, при этом угловой отражатель (51) отражает свет (51) вверх к выходной поверхности световода, в целом над соответствующим светоизлучающим диодом бокового излучения, поэтому светоизлучающий диод бокового излучения не кажется темным пятном на выходной поверхности световода. ! 3. Устройство по п.1, в котором опт

Claims (8)

1. Светоизлучающее устройство, содержащее:
по меньшей мере один нелазерный светоизлучающий диод (10) бокового излучения, в котором большинство света, излучаемого по нормали к верхней поверхности полупроводникового кристалла светоизлучающего диода, перенаправляется от нормали; и
световод (42), имеющий выходную поверхность, через которую свет излучается,
при этом световод имеет по меньшей мере одно углубление в первой поверхности, противоположной выходной поверхности, в котором каждое углубление содержит светоизлучающий диод бокового излучения, при этом стенки углубления образуют часть первой поверхности,
при этом световод имеет оптические элементы (44, 80), в котором оптические элементы содержат по меньшей мере один оптический элемент, сформированный над соответствующим светоизлучающим диодом бокового излучения, так что свет (51) внутри световода, падающий на оптический элемент, лежащий выше каждого светоизлучающего диода, перенаправляется к выходной поверхности световода для повышения выхода света световода над каждым светоизлучающим диодом, поэтому светоизлучающий диод бокового излучения не кажется темным пятном на выходной поверхности световода.
2. Устройство по п.1, в котором оптические элементы содержат угловой отражатель (44), сформированный на верхней стенке по меньшей мере одного углубления, при этом угловой отражатель (51) отражает свет (51) вверх к выходной поверхности световода, в целом над соответствующим светоизлучающим диодом бокового излучения, поэтому светоизлучающий диод бокового излучения не кажется темным пятном на выходной поверхности световода.
3. Устройство по п.1, в котором оптические элементы содержат по меньшей мере один оптический элемент (80), сформированный в выходной поверхности световода, в целом над соответствующим светоизлучающим диодом, так что свет, падающий на оптический элемент над каждым светоизлучающим диодом, перенаправляется с тем, чтобы излучаться через выходную поверхность, в целом над светоизлучающим диодом, поэтому светоизлучающий диод бокового излучения не кажется темным пятном на выходной поверхности световода.
4. Устройство по п.1, в котором оптические элементы содержат углубленные элементы.
5. Устройство по п.1, в котором оптические элементы содержат призмы, четырехскатные крыши, сферы, эллипсоиды, пирамиды, ямки, выступы или выемки, сформированные в или на поверхности световода.
6. Устройство по п.1, в котором оптические элементы получены формованием в поверхности световода.
7. Устройство по п.1, в котором световод содержит множество ячеек, при этом каждая ячейка содержит по меньшей мере один светоизлучающий диод, при этом каждая ячейка содержит стенки (67, 72) ячейки, окружающие по меньшей мере один светоизлучающий диод, при этом каждая ячейковая стенка является по меньшей мере частично отражающей.
8. Устройство по п.7, в котором стенки (72) ячейки наклонены так, чтобы перенаправлять свет к выходной поверхности световода.
RU2010116391/28A 2007-09-27 2008-09-22 Тонкая подсветка с использованием низкопрофильных светоизлучающих диодов бокового излучения RU2483338C2 (ru)

Applications Claiming Priority (3)

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US11/863,167 2007-09-27
US11/863,167 US20090086508A1 (en) 2007-09-27 2007-09-27 Thin Backlight Using Low Profile Side Emitting LEDs
PCT/IB2008/053844 WO2009040722A2 (en) 2007-09-27 2008-09-22 Thin backlight using low profile side emitting leds

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KR (1) KR101529473B1 (ru)
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