WO2015074303A1 - 太阳光收集装置及利用太阳光作为背光源的液晶显示器 - Google Patents

太阳光收集装置及利用太阳光作为背光源的液晶显示器 Download PDF

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Publication number
WO2015074303A1
WO2015074303A1 PCT/CN2013/089349 CN2013089349W WO2015074303A1 WO 2015074303 A1 WO2015074303 A1 WO 2015074303A1 CN 2013089349 W CN2013089349 W CN 2013089349W WO 2015074303 A1 WO2015074303 A1 WO 2015074303A1
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Prior art keywords
substrate
light
connector
lens
sunlight
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Ceased
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PCT/CN2013/089349
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English (en)
French (fr)
Inventor
宁超
张简圣哲
曹谦
李德华
唐国富
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TCL China Star Optoelectronics Technology Co Ltd
Original Assignee
Shenzhen China Star Optoelectronics Technology Co Ltd
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Application filed by Shenzhen China Star Optoelectronics Technology Co Ltd filed Critical Shenzhen China Star Optoelectronics Technology Co Ltd
Priority to US14/129,991 priority Critical patent/US9298037B2/en
Publication of WO2015074303A1 publication Critical patent/WO2015074303A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S23/00—Arrangements for concentrating solar-rays for solar heat collectors
    • F24S23/30—Arrangements for concentrating solar-rays for solar heat collectors with lenses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S50/00—Arrangements for controlling solar heat collectors
    • F24S50/20—Arrangements for controlling solar heat collectors for tracking
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/02—Details
    • G01J1/0238—Details making use of sensor-related data, e.g. for identification of sensor or optical parts
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/02—Details
    • G01J1/04—Optical or mechanical part supplementary adjustable parts
    • G01J1/0407—Optical elements not provided otherwise, e.g. manifolds, windows, holograms, gratings
    • G01J1/0411—Optical elements not provided otherwise, e.g. manifolds, windows, holograms, gratings using focussing or collimating elements, i.e. lenses or mirrors; Aberration correction
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/02—Details
    • G01J1/04—Optical or mechanical part supplementary adjustable parts
    • G01J1/0407—Optical elements not provided otherwise, e.g. manifolds, windows, holograms, gratings
    • G01J1/0422—Optical elements not provided otherwise, e.g. manifolds, windows, holograms, gratings using light concentrators, collectors or condensers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/02—Details
    • G01J1/04—Optical or mechanical part supplementary adjustable parts
    • G01J1/0407—Optical elements not provided otherwise, e.g. manifolds, windows, holograms, gratings
    • G01J1/0448—Adjustable, e.g. focussing
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/02—Details
    • G01J1/04—Optical or mechanical part supplementary adjustable parts
    • G01J1/0407—Optical elements not provided otherwise, e.g. manifolds, windows, holograms, gratings
    • G01J1/0451—Optical elements not provided otherwise, e.g. manifolds, windows, holograms, gratings using means for illuminating a slit efficiently, e.g. entrance slit of a photometer or entrance face of fiber
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
    • G02B19/0004—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed
    • G02B19/0009—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed having refractive surfaces only
    • G02B19/0014—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed having refractive surfaces only at least one surface having optical power
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
    • G02B19/0033—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use
    • G02B19/0038—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with ambient light
    • G02B19/0042—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with ambient light for use with direct solar radiation
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00—Simple or compound lenses
    • G02B3/0006—Arrays
    • G02B3/0037—Arrays characterized by the distribution or form of lenses
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00—Simple or compound lenses
    • G02B3/02—Simple or compound lenses with non-spherical faces
    • G02B3/08—Simple or compound lenses with non-spherical faces with discontinuous faces, e.g. Fresnel lens
    • 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
    • G02B6/0005—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 of the fibre type
    • G02B6/0006—Coupling light into the fibre
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors
    • G01J2001/4266—Photometry, e.g. photographic exposure meter using electric radiation detectors for measuring solar light
    • 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
    • G02B6/04—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings formed by bundles of fibres
    • 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
    • G02B6/24—Coupling light guides
    • G02B6/26—Optical coupling means
    • G02B6/32—Optical coupling means having lens focusing means positioned between opposed fibre ends
    • 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
    • G02F1/133612—Electrical details
    • 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
    • G02F1/133618—Illuminating devices for ambient light
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/40—Solar thermal energy, e.g. solar towers
    • Y02E10/47—Mountings or tracking

Definitions

  • the invention relates to a solar light utilization technology, in particular to a solar light collecting device and a liquid crystal display using sunlight as a backlight.
  • liquid crystal displays cannot use their own illumination, so they all need to use a backlight as a light source.
  • the existing common backlights are light-emitting diodes or cold-cathode lamps, which use power to drive the backlight of the backlight module.
  • the power consumption of the backlight on the entire display accounts for about 80% of the whole system. . Under long-term use, its energy consumption is very considerable.
  • the main sources of power generation are classified into petroleum-fired power generation and nuclear power generation, and they cause environmental pollution problems related to environmental pollution and the greenhouse effect that causes climate change.
  • the sunlight in nature is a natural and natural energy source.
  • the spectrum of the spectrum contains the visible light in the visible light. If it is designed to collect sunlight from the light collection system, it can be used as a backlight to greatly reduce power. Consumption.
  • An object of the present invention is to provide a liquid crystal display using sunlight as a backlight, which uses the above-mentioned solar light collecting device to collect sunlight and transmit the sunlight to the backlight module with an optical fiber to overcome the high energy consumption of the existing backlight module. problem.
  • a preferred embodiment of the present invention provides a solar light collecting apparatus including a lens substrate, a plurality of Fresnel lenses, a connector substrate, a plurality of optical fiber connectors, and a light-harvesting substrate.
  • the lens substrate has a plurality of circular cutout holes.
  • the plurality of Fresnel lenses are disposed on the lens substrate corresponding to the plurality of circular hollow holes, and the plurality of Fresnel lenses have the same focal length for focusing sunlight.
  • the connector substrate is disposed parallel to the lens substrate and is spaced apart from the lens substrate by the focal length.
  • the plurality of fiber optic connectors are adjustably disposed on the connector substrate for directing the focused sunlight into the optical fiber.
  • the light-harvesting substrate is disposed between the lens substrate and the connector substrate, and the light-harvesting substrate has a plurality of hollow holes, so that the focused sunlight can pass through the light-harvesting substrate for simultaneous rotation.
  • the lens substrate and the connector substrate are such that a plurality of Fresnel lenses face the sunlight.
  • the solar light collecting device further includes a solar tracking controller coupled to the light-harvesting substrate for driving the light-harvesting substrate to simultaneously rotate the Lens substrate and connector substrate.
  • the plurality of Fresnel lenses are located on the same plane.
  • the plurality of fiber optic connectors are fine tunable on the connector substrate.
  • a plurality of support columns are disposed between the lens substrate, the connector substrate, and the light-harvesting substrate to fix the lens substrate and the connector substrate. And a relative position between the light-harvesting substrates.
  • another preferred embodiment of the present invention provides a liquid crystal display using sunlight as a backlight, comprising a display panel and a backlight module for providing uniform light to the display panel.
  • the liquid crystal display further includes a solar light collecting device disposed outside and connected to the backlight module through an optical fiber for providing a backlight of the backlight module.
  • the solar light collecting device includes: a lens substrate having a plurality of circular hollow holes; a plurality of Fresnel lenses corresponding to the plurality of circular hollow holes disposed on the lens substrate, the plurality of Fresnel
  • the lens has the same focal length for focusing sunlight; a connector substrate disposed parallel to the lens substrate and spaced apart from the lens substrate; a plurality of fiber optic connectors adjustably disposed on the connector substrate
  • the light-receiving substrate is disposed between the lens substrate and the connector substrate, and the light-harvesting substrate has a plurality of hollow holes for focusing sunlight.
  • the light-harvesting substrate can be passed through for rotating the lens substrate and the connector substrate simultaneously so that the plurality of Fresnel lenses face the sunlight.
  • the solar light collecting device further includes a solar tracking controller coupled to the light-harvesting substrate for driving the light-harvesting substrate to simultaneously rotate the lens substrate and connect Substrate.
  • the plurality of Fresnel lenses are located on the same plane.
  • the plurality of optical fiber connectors can be finely adjusted on the connector substrate.
  • a plurality of support columns are disposed between the lens substrate, the connector substrate, and the light-harvesting substrate to fix the lens substrate, the connector substrate, and the chase The relative position between the light substrates.
  • the present invention creates a solar light collecting device that transmits a plurality of Fresnel lenses disposed on the lens substrate to ensure that the lenses are in the same plane. More recently, through the connector substrate parallel to the lens substrate, it is ensured that the focused sunlight can be guided into the fiber by the fiber connector. At the same time, the fiber optic connector can also be fine-tuned on the connector substrate to allow the lens focused light to be more accurately introduced into the fiber.
  • the present invention overcomes the energy consumption problem of the backlight in the prior art by collecting sunlight as the backlight of the backlight module through the above-mentioned solar light collecting device.
  • FIG. 1 is a perspective view of a solar light collecting device according to a preferred embodiment of the present invention.
  • Figure 2 is a partial cross-sectional view of Figure 1;
  • FIG. 3 is a liquid crystal display using sunlight as a backlight in accordance with a preferred embodiment of the present invention.
  • FIG. 1 is a perspective view of a solar light collecting device according to a preferred embodiment of the present invention
  • FIG. 2 is a partial cross-sectional view of FIG.
  • the solar light collecting device 10 of the present embodiment is disposed outdoors to collect sunlight, and includes a lens substrate 120 and a plurality of Fresnel lenses (Fresnel The lens 130, the connector substrate 140, the plurality of optical connectors 150, and the tracking substrate 160.
  • the lens substrate 120 has a plurality of circular hollow holes 122.
  • the plurality of circular cutout holes 122 are preferably arranged in a hexagonal closest arrangement to make full use of the area of the lens substrate 120.
  • the invention is not limited thereto.
  • the plurality of Fresnel lenses 130 are disposed on the lens substrate 120 corresponding to the plurality of circular cutout holes 122. As shown in FIG. 2, the Fresnel lens 130 achieves the same optical effect of the conventional spherical lens by dividing the lens into a plurality of concentric circular paths, while saving the amount of material used. Further, since the plurality of Fresnel lenses 130 are disposed on the same substrate, the plurality of Fresnel lenses 130 are located on the same plane without horizontal alignment.
  • each of the circular cutouts 122 can be designed with a flange 122 to which the Fresnel lens 130 can be attached.
  • the plurality of Fresnel lenses 130 all have the same focal length f for focusing sunlight. Further, the connector substrate 140 is disposed in parallel with the lens substrate 120 and is spaced apart from the lens substrate 120 by the focal length f. That is, each Fresnel lens 130 focuses sunlight onto the connector substrate 140. Therefore, the plurality of optical fiber connectors 150 are adjustably disposed on the connector substrate 140 for guiding the focused sunlight into the optical fiber 180.
  • the connector substrate 140 has a plurality of positioning holes 145 defined by corresponding focal points of the Fresnel lens 130 , and the plurality of optical fiber connectors 150 are located in the plurality of positioning holes 145 .
  • each fiber optic connector 150 also has a securing mechanism (not shown) such that the fiber optic connector 150 can be secured to a predetermined location within the locating aperture 145.
  • the fixing mechanism may be a combination of a bolt and a nut, or other suitable mechanism.
  • the light-folking substrate 160 is disposed between the lens substrate 120 and the connector substrate 140 , and is preferably horizontally disposed on the lens substrate 120 and the connector substrate 140 . between.
  • the light-harvesting substrate 160 has a plurality of hollow holes 162 such that the focused sunlight can pass through the light-harvesting substrate 160.
  • the plurality of hollow holes 162 may be opened corresponding to the circular hollow holes 122 of the lens substrate 120, and the hollow holes 162 are preferably equal to or smaller than the circular hollow holes 122.
  • the light-tracking substrate 160 is used to simultaneously rotate the lens substrate 120 and the connector substrate 140 such that the plurality of Fresnel lenses 130 face the incident direction of sunlight.
  • a plurality of support columns 190 are disposed between the lens substrate 120 , the connector substrate 140 , and the light-harvesting substrate 160 to fix the lens substrate 120 , the connector substrate 140 , and The relative position between the tracking substrates 160.
  • the invention is not limited thereto.
  • the lens substrate 120, the connector substrate 140, and the light-harvesting substrate 160 may have sidewalls (not shown) to fix the relative positions between the three.
  • the solar light collecting device 10 further includes a solar tracking controller 195 (shown in FIG. 3) coupled to the light-tracking substrate 160 for driving the light-harvesting substrate 160 to simultaneously
  • the lens substrate 120 and the connector substrate 140 are rotated.
  • the solar tracking controller 195 may include an electronic control system and a driving mechanism, such as a connecting shaft, a lifting electric cylinder, a pivoting structure, and the like, which are not described herein.
  • the solar tracking controller 195 can also couple the plurality of support columns 190.
  • FIG. 3 illustrates a liquid crystal display 20 using sunlight as a backlight according to a preferred embodiment of the present invention.
  • the liquid crystal display 20 includes a display panel 200 and a backlight module 300 for providing uniform light to the display panel 200.
  • the liquid crystal display device 20 further includes a solar light collecting device 10 that is disposed outdoors and connected to the backlight module 300 through an optical fiber 180 for providing a backlight of the backlight module 300.
  • the solar light collecting device 10 includes a lens substrate 120, a plurality of Fresnel lenses 130, a connector substrate 140, a plurality of optical fiber connectors 150, and a light-harvesting substrate 160.
  • the lens substrate 120 has a plurality of circular cutout holes 122.
  • the plurality of Fresnel lenses 130 are disposed on the lens substrate 120 corresponding to the plurality of circular hollow holes 122, and the plurality of Fresnel lenses 130 have the same focal length f for focusing sunlight.
  • the connector substrate 140 is disposed parallel to the lens substrate 120 and is apart from the lens substrate 120 by the focal length f.
  • the plurality of optical fiber connectors 150 are adjustably disposed on the connector substrate 140 for guiding the focused sunlight into the optical fiber 180.
  • the light-harvesting substrate 160 is disposed between the lens substrate 120 and the connector substrate 140.
  • the light-harvesting substrate 160 has a plurality of hollow holes 162 such that the focused sunlight can pass through the light-harvesting substrate 160.
  • the lens substrate 120 and the connector substrate 140 are rotated simultaneously so that the plurality of Fresnel lenses 130 face the sunlight.
  • the solar light collecting device 10 further includes a solar tracking controller 195 coupled to the light-harvesting substrate 160 for driving the tracking substrate 160 to simultaneously rotate the lens substrate 120 and the connector.
  • the plurality of Fresnel lenses 130 are in the same plane without horizontal alignment.
  • the plurality of optical fiber connectors 150 can be finely adjusted on the connector substrate 140 to accurately direct the focused sunlight into the optical fibers.
  • a plurality of support columns 190 are disposed between the lens substrate 120, the connector substrate 140, and the light-harvesting substrate 160 to fix the lens substrate 120, the connector substrate 140, and the tracking The relative position between the light substrates 160.
  • the solar light collecting device 10 of the present embodiment transmits the plurality of Fresnel lenses 130 provided on the lens substrate 120 to ensure that the lenses are located on the same plane. More recently, through the connector substrate 140 parallel to the lens substrate 120, it is ensured that the focused sunlight can be guided into the optical fiber 180 by the optical fiber connector 150. At the same time, the fiber optic connector 150 can also be fine tuned on the connector substrate 140 to allow the lens focused light to be more accurately introduced into the fiber.
  • the present invention collects sunlight as the backlight of the backlight module 300 through the above-described solar light collecting device 10, overcoming the energy consumption problem of the backlight in the prior art.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Nonlinear Science (AREA)
  • Combustion & Propulsion (AREA)
  • Sustainable Energy (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mathematical Physics (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Optical Couplings Of Light Guides (AREA)
  • Photovoltaic Devices (AREA)

Abstract

一种太阳光收集装置（10），包括透镜基板（120）、多个菲涅尔透镜（130）、连接器基板（140）、多个光纤连接器（150）及追光基板（160）。透镜基板（120）具有多个圆形镂空孔（122）。多个菲涅尔透镜（130）对应多个圆形镂空孔（122）设置在透镜基板（120）上。连接器基板（140）平行透镜基板（120）设置，且与透镜基板（120）的距离等于焦距。多个光纤连接器（150）可调整地设置于连接器基板（140）上。追光装置设置于透镜基板（120）及连接器基板（140）之间，用于同时转动透镜基板（120）及连接器基板（140），以使多个菲涅尔透镜正对太阳光。还提供了利用太阳光作为背光源的液晶显示器。

Description

太阳光收集装置及利用太阳光作为背光源的液晶显示器 技术领域
本发明涉及一种太阳光利用技术，特别涉及一种太阳光收集装置及利用太阳光作为背光源的液晶显示器。
 背景技术
现阶段液晶显示器由于无法自主发光，因此均需采用背光源作为发光光源。现有常见的背光源为发光二极管或是冷阴极灯管，都是使用电力来趋动背光模块的背光源，然而在整个显示器上其背光源的功耗便占了机整系统的80%左右。在长时间使用之下，其能源的消耗是非常可观。在目前所使用的发电类别中，占主要发电来源分为石油燃烧发电、核能发电，而它们会带来环境的污染与引起气候剧列变化的温室效应等相关影响环境的问题。
自然界中的太阳光为绿色环保的自然能源，其光谱中包含背光源所需的可见光波段的光，若在设计上能够将太阳光使用光收集系统收集起来，作为背光源使用则可以大大减少电力的消耗。
然而，目前尚未有人提出可有效率将太阳光收集，以作为背光源的太阳光吸收装置。
 技术问题
本发明的一个目的在于提供一种太阳光收集装置，以达到高效率太阳光收集以作为背光源之用。
本发明的一个目的在于提供一种利用太阳光作为背光源的液晶显示器，其采用上述太阳光收集装置收集太阳光，并以光纤将太阳光传送至背光模块以克服现有背光模块的高耗能问题。
 技术解决方案
本发明的一优选实施例提供了一种太阳光收集装置，其包括透镜基板、多个菲涅尔透镜、连接器基板、多个光纤连接器及追光基板。所述透镜基板具有多个圆形镂空孔。所述多个菲涅尔透镜对应所述多个圆形镂空孔设置在所述透镜基板上，所述多个菲涅尔透镜具有相同的焦距，用于聚焦太阳光。所述连接器基板平行所述透镜基板设置，且与所述透镜基板相距所述焦距。所述多个光纤连接器可调整地设置于所述连接器基板上，用于使聚焦后的太阳光导入光纤中。所述追光基板设置于所述透镜基板及所述连接器基板之间，所述追光基板具有多个镂空孔使得聚焦后的太阳光可穿过所述追光基板，用于同时转动所述透镜基板及连接器基板，以使多个菲涅尔透镜正对太阳光。
在本发明优选实施例的太阳光收集装置中，所述太阳光收集装置还包括太阳光追踪控制器，其耦接所述追光基板，用于驱动所述追光基板，以同时转动所述透镜基板及连接器基板。
在本发明优选实施例的太阳光收集装置中，所述多个菲涅尔透镜位于同一平面。
在本发明优选实施例的太阳光收集装置中，所述多个光纤连接器可在所述连接器基板上微调。
在本发明优选实施例的太阳光收集装置中，所述透镜基板、所述连接器基板及所述追光基板之间设置有多个支撑柱，以固定所述透镜基板、所述连接器基板及所述追光基板之间的相对位置。
同样地，为解决上述问题，本发明的另一优选实施例提供了一种利用太阳光作为背光源的液晶显示器，其包括显示面板及用于提供均匀的光线至所述显示面板的背光模块。所述液晶显示器还包括太阳光收集装置，设置于户外并透过光纤连接于所述背光模块，用于提供所述背光模块的背光源。
所述太阳光收集装置包括：透镜基板，具有多个圆形镂空孔；多个菲涅尔透镜，对应所述多个圆形镂空孔设置在所述透镜基板上，所述多个菲涅尔透镜具有相同的焦距，用于聚焦太阳光；连接器基板，平行所述透镜基板设置，且与所述透镜基板相距所述焦距；多个光纤连接器，可调整地设置于所述连接器基板上，用于使聚焦后的太阳光导入光纤中；以及追光基板，设置于所述透镜基板及所述连接器基板之间，所述追光基板具有多个镂空孔使得聚焦后的太阳光可穿过所述追光基板，用于同时转动所述透镜基板及连接器基板，以使多个菲涅尔透镜正对太阳光。
在此实施例的液晶显示器中，所述太阳光收集装置还包括太阳光追踪控制器，其耦接所述追光基板，用于驱动所述追光基板，以同时转动所述透镜基板及连接器基板。
在此实施例的液晶显示器中，所述多个菲涅尔透镜位于同一平面。
在此实施例的液晶显示器中，所述多个光纤连接器可在所述连接器基板上微调。
在此实施例的液晶显示器中，所述透镜基板、所述连接器基板及所述追光基板之间设置有多个支撑柱，以固定所述透镜基板、所述连接器基板及所述追光基板之间的相对位置。
 有益效果
相对于现有技术，本发明创建了一种太阳光收集装置，其透过设置在所述透镜基板的多个菲涅尔透镜，以确保透镜位于同一平面。更近一步来说，透过与透镜基板平行的连接器基板，可确保聚焦后的太阳光可由光纤连接器导入光纤。同时，光纤连接器也可在连接器基板上作微调，以使透镜聚焦后的光能更精确地导入光纤中。另外，本发明透过上述太阳光收集装置收集太阳光以作为背光模块的背光源，克服了现有技术中背光源的能耗问题。
 附图说明
图1为本发明一优选实施例的太阳光收集装置的立体示意图；
图2为图1局部剖面示意图；及
图3为本发明一优选实施例的利用太阳光作为背光源的液晶显示器。
 本发明的最佳实施方式
以下各实施例的说明是参考附加的图式，用以例示本发明可用以实施的特定实施例。
请参阅图1及图2，图1为本发明一优选实施例的太阳光收集装置的立体示意图，图2为图1局部剖面示意图。需注意的是，上述图式仅是用来说明，并未以实际比例绘制。本实施例的太阳光收集装置10是设置于户外以收集太阳光，其包括透镜基板120、多个菲涅尔透镜(Fresnel lens)130、连接器基板140、多个光纤连接器150及追光基板160。
如图1所示，所述透镜基板120具有多个圆形镂空孔122。所述多个圆形镂空孔122优选为六角最密排列，以充分利用透镜基板120的面积。然而，本发明并不限于此。
所述多个菲涅尔透镜130对应所述多个圆形镂空孔122设置在所述透镜基板120上。如图2所示，菲涅尔透镜130通过将透镜划分出多个同心圆纹路达到传统求球面透镜相同的光学效果，同时节省了材料的用量。进一步来说，由于所述多个菲涅尔透镜130设置同一基板上，因此所述多个菲涅尔透镜130位于同一平面，无须进行水平校准。优选地，每一圆形镂空孔122可设计有一凸缘122，而菲涅尔透镜130可固定在该凸缘122上。
所述多个菲涅尔透镜130都具有相同的焦距f，用于聚焦太阳光。此外，所述连接器基板140平行所述透镜基板120设置，且与所述透镜基板120相距约所述焦距f。也就是说，每一菲涅尔透镜130都将太阳光聚焦于所述连接器基板140上。因此，所述多个光纤连接器150可调整地设置于所述连接器基板140上，用于使聚焦后的太阳光导入光纤180中。
如图2所示，所述连接器基板140上具有相应菲涅尔透镜130聚焦点开设的多个定位孔145，而所述多个光纤连接器150位于所述多个定位孔145内。具体来说，每一光纤连接器150还具有一固定机构(图未示)，使得光纤连接器150可固定在定位孔145内的预设位置。详细来说，所述固定机构可为螺栓与螺帽组合，或其他适合的机构。透过上述固定机构，所述多个光纤连接器150可在所述连接器基板140上微调，使得聚焦后的太阳光能精确地导入光纤180中，提高了光利用率。
如图1及图2所示，所述追光基板160设置于所述透镜基板120及所述连接器基板140之间，优选为水平设置于所述透镜基板120及所述连接器基板140之间。所述追光基板160具有多个镂空孔162使得聚焦后的太阳光可穿过所述追光基板160。优选的，多个镂空孔162可对应透镜基板120的圆形镂空孔122开设，且镂空孔162优选为小于等于圆形镂空孔122。具体而言，所述追光基板160用于同时转动所述透镜基板120及连接器基板140，以使多个菲涅尔透镜130正对太阳光入射方向。
如图1所示，所述透镜基板120、所述连接器基板140及所述追光基板160之间设置有多个支撑柱190，以固定所述透镜基板120、所述连接器基板140及所述追光基板160之间的相对位置。然而，本发明并不限于此。例如，所述透镜基板120、所述连接器基板140及所述追光基板160之间可具有侧壁(图未示)，以固定三者之间的相对位置。
在此实施例中，所述太阳光收集装置10还包括太阳光追踪控制器195(示于图3)，其耦接所述追光基板160，用于驱动所述追光基板160，以同时转动所述透镜基板120及连接器基板140。具体来说，所述太阳光追踪控制器195可包含有电控系统及驱动机构，如连接轴、升降电动缸、枢接结构等，在此不予赘述。此外，太阳光追踪控制器195也可耦接所述多个支撑柱190。
以下将说明采用上述实施例的太阳光收集装置10的一种利用太阳光作为背光源的液晶显示器。请参照图3，图3为本发明一优选实施例的利用太阳光作为背光源的液晶显示器20。所述液晶显示器20包括显示面板200及用于提供均匀的光线至所述显示面板200的背光模块300。所述液晶显示器20还包括太阳光收集装置10，其设置于户外并透过光纤180连接于所述背光模块300，用于提供所述背光模块300的背光源。
请再参照图1及图2，所述太阳光收集装置10包括透镜基板120、多个菲涅尔透镜130、连接器基板140、多个光纤连接器150及追光基板160。所述透镜基板120具有多个圆形镂空孔122。所述多个菲涅尔透镜130对应所述多个圆形镂空孔122设置在所述透镜基板120上，所述多个菲涅尔透镜130具有相同的焦距f，用于聚焦太阳光。所述连接器基板140平行所述透镜基板120设置，且与所述透镜基板120相距所述焦距f。所述多个光纤连接器150可调整地设置于所述连接器基板140上，用于使聚焦后的太阳光导入光纤180中。所述追光基板160设置于所述透镜基板120及所述连接器基板140之间，所述追光基板160具有多个镂空孔162使得聚焦后的太阳光可穿过所述追光基板160，用于同时转动所述透镜基板120及连接器基板140，以使多个菲涅尔透镜130正对太阳光。上述元件的具体说明已详述于上，在此不予以赘述。
同样地，所述太阳光收集装置10还包括太阳光追踪控制器195，其耦接所述追光基板160，用于驱动所述追光基板160，以同时转动所述透镜基板120及连接器基板140。另外，所述多个菲涅尔透镜130位于同一平面，而无须水平校准。所述多个光纤连接器150可在所述连接器基板140上微调，精准的将聚焦后的太阳光导入光纤。同样地，所述透镜基板120、所述连接器基板140及所述追光基板160之间设置有多个支撑柱190，以固定所述透镜基板120、所述连接器基板140及所述追光基板160之间的相对位置。
综上所述，本实施例的太阳光收集装置10透过设置在所述透镜基板120的多个菲涅尔透镜130，以确保透镜位于同一平面。更近一步来说，透过与透镜基板120平行的连接器基板140，可确保聚焦后的太阳光可由光纤连接器150导入光纤180。同时，光纤连接器150也可在连接器基板140上作微调，以使透镜聚焦后的光能更精确地导入光纤中。另外，本发明透过上述太阳光收集装置10收集太阳光以作为背光模块300的背光源，克服了现有技术中背光源的能耗问题。
虽然本发明已以优选实施例揭露如上，但上述优选实施例并非用以限制本发明，本领域的普通技术人员，在不脱离本发明的精神和范围内，均可作各种更动与润饰，因此本发明的保护范围以权利要求界定的范围为准。
 本发明的实施方式
工业实用性
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Claims (14)

  1. 一种利用太阳光作为背光源的液晶显示器，包括显示面板及用于提供均匀的光线至所述显示面板的背光模块，所述液晶显示器还包括：
    太阳光收集装置，设置于户外并透过光纤连接于所述背光模块，用于提供所述背光模块的背光源，所述太阳光收集装置包括：
    透镜基板，具有多个圆形镂空孔；
    多个菲涅尔透镜，对应所述多个圆形镂空孔设置在所述透镜基板上，所述多个菲涅尔透镜具有相同的焦距，用于聚焦太阳光；
    连接器基板，平行所述透镜基板设置，且与所述透镜基板相距所述焦距；
    多个光纤连接器，可调整地设置于所述连接器基板上，用于使聚焦后的太阳光导入光纤中；
    追光基板，设置于所述透镜基板及所述连接器基板之间，所述追光基板具有多个镂空孔使得聚焦后的太阳光可穿过所述追光基板，用于同时转动所述透镜基板及连接器基板，以使多个菲涅尔透镜正对太阳光；以及
    太阳光追踪控制器，其耦接所述追光基板，用于驱动所述追光基板，以同时转动所述透镜基板及连接器基板。
  2. 根据权利要求1所述的液晶显示器，其中所述多个菲涅尔透镜位于同一平面。
  3. 根据权利要求1所述的液晶显示器，其中所述多个光纤连接器可在所述连接器基板上微调。
  4. 根据权利要求1所述的液晶显示器，其中所述透镜基板、所述连接器基板及所述追光基板之间设置有多个支撑柱，以固定所述透镜基板、所述连接器基板及所述追光基板之间的相对位置。
  5. 一种太阳光收集装置，包括：
    透镜基板，具有多个圆形镂空孔；
    多个菲涅尔透镜，对应所述多个圆形镂空孔设置在所述透镜基板上，所述多个菲涅尔透镜具有相同的焦距，用于聚焦太阳光；
    连接器基板，平行所述透镜基板设置，且与所述透镜基板相距所述焦距；
    多个光纤连接器，可调整地设置于所述连接器基板上，用于使聚焦后的太阳光导入光纤中；以及
    追光基板，设置于所述透镜基板及所述连接器基板之间，所述追光基板具有多个镂空孔使得聚焦后的太阳光可穿过所述追光基板，用于同时转动所述透镜基板及连接器基板，以使多个菲涅尔透镜正对太阳光。
  6. 根据权利要求5所述的太阳光收集装置，其中所述太阳光收集装置还包括太阳光追踪控制器，其耦接所述追光基板，用于驱动所述追光基板，以同时转动所述透镜基板及连接器基板。
  7. 根据权利要求5所述的太阳光收集装置，其中所述多个菲涅尔透镜位于同一平面。
  8. 根据权利要求5所述的太阳光收集装置，其中所述多个光纤连接器可在所述连接器基板上微调。
  9. 根据权利要求5所述的太阳光收集装置，其中所述透镜基板、所述连接器基板及所述追光基板之间设置有多个支撑柱，以固定所述透镜基板、所述连接器基板及所述追光基板之间的相对位置。
  10. 一种利用太阳光作为背光源的液晶显示器，包括显示面板及用于提供均匀的光线至所述显示面板的背光模块，所述液晶显示器还包括：
    太阳光收集装置，设置于户外并透过光纤连接于所述背光模块，用于提供所述背光模块的背光源，所述太阳光收集装置包括：
    透镜基板，具有多个圆形镂空孔；
    多个菲涅尔透镜，对应所述多个圆形镂空孔设置在所述透镜基板上，所述多个菲涅尔透镜具有相同的焦距，用于聚焦太阳光；
    连接器基板，平行所述透镜基板设置，且与所述透镜基板相距所述焦距；
    多个光纤连接器，可调整地设置于所述连接器基板上，用于使聚焦后的太阳光导入光纤中；以及
    追光基板，设置于所述透镜基板及所述连接器基板之间，所述追光基板具有多个镂空孔使得聚焦后的太阳光可穿过所述追光基板，用于同时转动所述透镜基板及连接器基板，以使多个菲涅尔透镜正对太阳光。
  11. 根据权利要求10所述的液晶显示器，其中所述太阳光收集装置还包括太阳光追踪控制器，其耦接所述追光基板，用于驱动所述追光基板，以同时转动所述透镜基板及连接器基板。
  12. 根据权利要求10所述的液晶显示器，其中所述多个菲涅尔透镜位于同一平面。
  13. 根据权利要求10所述的液晶显示器，其中所述多个光纤连接器可在所述连接器基板上微调。
  14. 根据权利要求10所述的液晶显示器，其中所述透镜基板、所述连接器基板及所述追光基板之间设置有多个支撑柱，以固定所述透镜基板、所述连接器基板及所述追光基板之间的相对位置。
PCT/CN2013/089349 2013-11-25 2013-12-13 太阳光收集装置及利用太阳光作为背光源的液晶显示器 Ceased WO2015074303A1 (zh)

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