CN206944046U - A kind of long-persistence luminous device of direct-light type LED backlight - Google Patents
A kind of long-persistence luminous device of direct-light type LED backlight Download PDFInfo
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- CN206944046U CN206944046U CN201720926521.9U CN201720926521U CN206944046U CN 206944046 U CN206944046 U CN 206944046U CN 201720926521 U CN201720926521 U CN 201720926521U CN 206944046 U CN206944046 U CN 206944046U
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- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
Abstract
The utility model provides a kind of long-persistence luminous device of direct-light type LED backlight：LED light source (4) upper section of array arrangement is fully provided with long after glow luminous material layer (2), reflecting layer (5) is set below LED light source (4), light is set to spread module (3) and brightness enhancement film (7), LED light source (4) continuous illumination or luminous with some cycles or dutycycle interval between LED light source (4) and long after glow luminous material layer (2).The utility model adjusts the spacing of LED light source (4) and long after glow luminous material layer (2) by setting the height of light diffusion module (3), to obtain the optimum balance between light diffusion and luminous intensity, have the advantages that luminosity is high, luminous uniform, and can be by controlling LED light source (4) interval is luminous to provide dynamic alerts function.The utility model can be used alone or be made module with required design profile and served as component for manufacturing energy-saving illumination utensil or warning indication mark or light-emitting instrument of meeting an urgent need etc..
Description
Technical field
The utility model is related to extraordinary light emitting device field, and in particular to a kind of direct-light type LED backlight it is long-persistence luminous
Device.
Background technology
Long after glow luminous material belongs to a kind of light-accumulating luminous material：It sends visible ray under the exciting of excitation source, and
The part luminous energy of acquisition is stored；After exciting stopping, it slowly releases the energy of storage in the form of luminous energy.By
In this characteristic, long after glow luminous material obtains in fields such as emergency lighting, fire-fighting life-saving, traffic security protections more and more should
With.
Traditional long afterglow product is grown mainly using ambient light come inspired long-lasting phosphor, but in routine use
Afterglow materials excite generally not enough fully, therefore brightness is relatively low, it is impossible to reach actual operation requirements.
Therefore, make the long afterglow that actively lights it has been proposed that long after glow luminous material is combined with active illuminating source
Device, by controlling active illuminating source to be lighted with certain cycle or dutycycle interval come inspired long-lasting phosphor, from
And the luminosity of long afterglow product is improved under low-power consumption.Again due to the particular advantages of LED light source, typically now preferably
LED long-afterglow devices are made as excitation source in LED light source.
The existing common practices for actively lighting long-afterglow device is directly to set to excite in the bottom surface of long after glow luminous material
Light source.The problem of so doing is：According to luminosity theory --- luminous intensity and distance square are inversely proportional, if long afterglow
Luminescent material and actively excite the distance between spot light too near, then long after glow luminous material apart from actively excite spot light compared with
Near region excites luminous energy superfluous, excites luminous energy insufficient what distance actively excited the region of spot light farther out, cause to grow more than
Brightness luminescent material is excited uneven so as to forming hot spot；If long after glow luminous material and actively exciting distance between spot light too
Far, decay occurs in way is propagated for exciting light so that exciting light can make full use of, and afterglow materials, which are stimulated, does not fill
Divide and cause brightness relatively low.As patent No. CN205723621U propose a kind of long afterglow LED, in LED exciting lights
Long after glow luminous material is directly set above source, is analyzed more than, overall luminosity can be caused not uniform enough；As having again
People proposes a kind of solar LED long afterglow ball lamp, and long after glow luminous material, the top of ball lamp are equably mixed on ball lamp housing
Portion sets solar energy photovoltaic panel, and the cavity center of ball lamp sets LED excitation sources, by solar energy photovoltaic panel to LED excitation sources
Power supply and inspired long-lasting phosphor；Because LED excitation sources are spot light, therefore luminosity is not uniform enough；And LED swashs
Light emitting source apart from long after glow luminous material too far so that exciting for long after glow luminous material is insufficient, and brightness is relatively low；It is and whole
The cost of housing doping long after glow luminous material is too high.
Because the long-afterglow device that actively lights is the new things that just grew up in recent years, mostly in primary simple application
It is stage, technically ripe not enough, therefore problems in every respect be present.Such as the luminous length of in general active in the market
For twilight sunset device under the low-power LED shooting condition using regular size, the twilight sunset of long after glow luminous material maintains brightness general
No more than 1cd/m2, the overwhelming majority is in tens to hundreds of mcd/m2Between, although some after-glow brightnesses can be more than 1cd/m2, but
Uniformity of luminance is inadequate, and practicality is not high, using being limited to；Particularly some products need luminosity height, luminous uniform, energy
The area source of standard batch production, and be also difficult to reach above-mentioned requirements using prior art.
How to overcome the existing long-afterglow device luminance nonuniformity that actively lights uniform by exciting insufficient caused luminosity
Relatively low technological deficiency, and the standard standardized product that modularized production obtains reliable in quality is formed, particularly further improve
The launching efficiency of light source and the after-glow brightness of long-afterglow material are so as to improve product quality and industrialization level, into the industry urgently
The problem of solution.
Utility model content
In order to overcome the technological deficiency of the existing long-afterglow device that actively lights, the utility model provides a kind of straight-down negative
The long-persistence luminous device of LED backlight.
The utility model has the function of common active luminescent device and long-persistence luminous device concurrently, by long-persistence luminous
The setting LED light source directly below of material layer, long after glow luminous material layer is excited more fully, improve the brightness of twilight sunset；
Reflecting layer is set, prevents light source from leaking outside, to increase the service efficiency of light, adds luminosity；Light is set to spread module, light
By constantly can be passed through during light diffusion module in the different medium of two refractive indexes, light will be permitted at the same time
More refractions, the phenomenon of reflection and scattering, optics diffusion is so just caused, so that it is luminous uniform, especially by adjustment light
The member height in module is spread, so as to adjust the spacing of excitation source and long after glow luminous material, so as to long-persistence luminous
Material excites the balance for reaching good between brightness and luminous uniformity；Brightness enhancement film is set, by the refraction and reflection of light
To reach the designs such as convergence light, the purpose for improving frontal luminance, it compensate for the existing long-persistence luminous device that actively lights and light
Not uniform enough technological deficiency, while the service efficiency of light and the launching efficiency of long after glow luminous material are improved, so as to increase
Overall luminosity；By setting filter layer 6, unwanted spectrum can be filtered out, glow color is preferably met
Design requirement；And large-scale production is easily installed and standardizes, so as to greatly improve the industrialization of long-persistence luminous device
It is horizontal.
Under conditions of not increasing and exciting power consumption, the after-glow brightness of the long after glow luminous material of the utility model product has
It is greatly improved, such as：Using under the low-power LED shooting condition of regular size, long after glow luminous material can reach 10cd/
m2After-glow brightness above, compared to the raising that existing product has the order of magnitude, fully powered-off rear after-glow brightness more has significantly
Improve, be really achieved the requirement of practical application.
The technical solution of the utility model is：A kind of long-persistence luminous device of direct-light type LED backlight, including encapsulation structure
Part, long after glow luminous material layer, LED light source, reflecting layer；Described packing component be frame or panel or bottom plate or its any two
Individual and the above sub-assembly；Long after glow luminous material layer is provided with the upper section of LED light source or is fully provided with long afterglow sends out
Optical material layer；Reflecting layer is arranged on the periphery of LED light source, or is arranged on the lower section of LED light source；Long after glow luminous material layer, LED
Light source, reflecting layer are located on packing component or in packing component.
Further, light diffusion module is provided between LED light source and long after glow luminous material layer.
Further, brightness enhancement film is provided between LED light source and long after glow luminous material layer；Described brightness enhancement film and LED light source
Between, or/and, light diffusion module is additionally provided between described brightness enhancement film and long after glow luminous material layer.
Further, the top of long after glow luminous material layer is provided with filter layer.
Further, packing component is the packing component for including the panel for being combined with word or pattern, or inverse comprising being combined with
The packing component of the panel of reflecting material.
Further, long after glow luminous material layer is the long after glow luminous material layer for being arranged to word or pattern；Or for
The long after glow luminous material layer of the word or pattern of hollow out or/and printing opacity；Or it is the long after glow luminous material layer with hole.
Further, LED light source is also connected with the control circuit with specific function, and described specific function is：Control LED light
The function of the luminous power in source, or/and, the function that control LED light source is lighted with certain cycle or dutycycle interval.
Further, LED light source for two groups or more possess respectively independent circuits different wave length LED.
Further, control circuit is two groups or more the LED with control LED light source respectively with different power
Or the control circuit that cycle or dutycycle light.
Further, control circuit also has charge storage element, or charge storage element and charge and discharge electrical component, or electric power storage by connection
Element and charge and discharge electrical component and photovoltaic device.
Packing component：
Packing component generally comprises frame or panel or bottom plate etc., and material is generally glass or rubber or plastics or metal etc.
Material, shape required design, mainly play printing opacity, receiving, pressure-bearing, support, protection, fixation, installation etc..It is wherein simplest
Packing component only includes single frame；Now, each component is generally fixed on the frame of packing component.
The faceplate part of packing component is one-shot forming or the light penetrating object or partial light permeability body that combine by several times.
Concaveconvex structure such as convex tendon or support etc. can be provided with packing component, so as to form groove or hole or subregion, and
Play booster action.Described groove or hole or subregion are used to set component, can fill or be partially filled with by packaging plastic,
Each component is combined as a whole, moreover it is possible to improve water resistance.
Especially, when each component is encapsulated and is combined into one by packaging plastic, served as naturally after packaging plastic curing molding
The effect of packing component.
Sometimes, when for manufacturing some illuminators, equipment housing in itself or component can serve as packing component.
Long after glow luminous material layer：
Long after glow luminous material belongs to a kind of energy-saving luminous material, generally refers to long-afterglow luminescent powder or long-afterglow luminescent powder
With the mixture or hybrid process thing of transparent medium.Wherein machining object refers to luminescent powder and transparent medium mixing, solid by heating
Change or reaction solidifies or the article shaped by the technique such as injection, extrusion.Long-afterglow luminescent powder prioritizing selection good luminous performance is mixed
The alkaline earth aluminate salt or silicates of rare earth, the Sr for the green glow that such as turns blue4Al14O25Or the SrAl of green-yellow light2O4, or both press one
Certainty ratio mixes.The transparent medium used is the media such as good plastic resin, rubber or the glass of translucency.
Long after glow luminous material layer plays continues luminous effect by light-decay characteristic after LED light source stops luminous.
The shape of long after glow luminous material layer can be according to actual demand designed, designed；Generally layer structure, preferably make
Into rigidity or flexible sheet material.
Long after glow luminous material layer can be located in the light-emitting area of packing component, or mixed with transparent medium with advance comprising
It is cast in the groove or hole or subregion of packing component；Long-afterglow luminescent powder can also be mixed to directly perfusion with transparent medium
In the groove or hole or subregion of packing component；It can also be mixed with transparent medium and directly be processed into packing component, and served as
The effect of long after glow luminous material layer.
Long after glow luminous material layer can be partially disposed in light-emitting area, can be in latticed setting, or arrangement is written
Positive version is made in word or pattern etc., or fluted or hole is set on long after glow luminous material layer, or hollow out word and pattern etc..
Especially, long after glow luminous material layer 2 is the Sr for the green glow that turns blue that subregion is set4Al14O25:Eu+2,Dy+3More than length
The SrAl of brightness luminous material layer and jaundice green glow2O4:Eu+2,Dy+3The combination of long after glow luminous material layer, so that light-emitting mode
It is more diversified.
Light spreads module：
Light diffusion module mainly has three functions：By reflecting, reflecting, scattering, diffraction etc. reach the effect that light spreads；It is logical
Cross the height for setting light to spread module and adjust the spacing of LED light source and long after glow luminous material layer, to obtain light diffusion and send out
Optimum balance between luminous intensity；Supporting functions can also be had concurrently, increase the structural strength of device, do not allow product yielding,
To improve service life.Light diffusion module can be the diffusion sheet using the sheet material such as lens or prismatic lens or reflectance coating as representative,
Or the light pervasion component with flase floor or buckplate or reflector array or light divergent lenses array or prism array etc. for representative
Or and combinations thereof etc., can be single or multiple lift, the wherein thickness of light pervasion component or height is significantly greater than light diffusing sheet.
The material that light diffusion module diffusion sheet therein uses mainly includes two kinds of PET and PC base materials, positive smooth, reverse side
It is coarse；The light diffusing sheet preparation method of PET materials is the coating diffusion layer transparent resin mixing photodiffusion material system on pet substrate
Into；And what the light diffusing sheet of PC materials mainly utilized is that roller bearing hot pressing forms concavo-convex mat surface.Pervasion component therein is with plastics
Can be specifically flase floor or buckplate or reflector array or light divergent lenses array or prism array etc. based on injection, most
Simple light diffusion module can be only one layer of flase floor or one layer of diffusion sheet；Its structure can be planar structure or folding surface structure
Or curved-surface structure or concaveconvex structure or its combination etc., when the pervasion component of light diffusion module is folding surface structure or curved-surface structure or recessed
During male structure domain, the spacing of LED light source and long after glow luminous material layer can be adjusted by setting the height of light diffusion module,
To obtain the optimum balance between diffusion and brightness, and play a part of supporter.
Especially, between LED light source and long after glow luminous material layer by guide-lighting glue bond, now, guide-lighting adhesive curing into
After type, the effect of light diffusion module can also be served as.
Light diffusion module can also by reflecting, reflecting, scattering, diffraction etc. reach the function of different wavelengths of light colour mixture.
LED light source：
LED light source is single led light source, or multiple or multigroup phase co-wavelength or different wave length, same package mode or
The LED light source of different packaged types, circuit board and the SMD of array arrangement in the circuit board preferably with rigidity or flexible wires
SMD or COB integrated LEDs.
LED light source can be divided into the LED light source of arousal function and the LED light source of conventional lighting function by purposes difference.Its
In, the emission wavelength of the LED light source of arousal function and the excitation spectrum of long after glow luminous material match, and are generally located in long afterglow
The bottom surface or lower section of luminous material layer, it is main to play inspired long-lasting phosphor layer, preferably SMD encapsulation, band circuit
Blue light or purple light or ultraviolet leds of plate, below peak wavelength 450nm.The light that the LED light source of conventional lighting function is sent can
Directly to be projected without long after glow luminous material layer, mainly play conventional lighting, display etc., chromatogram compensation can also be played
Effect, avoid that long afterglow surface light source device glow color is single and the impure phenomenon of form and aspect, with the chromatogram of design requirement more
Matching；Prioritizing selection turns white the straw hat formula LED of color or feux rouges or gold-tinted etc..
The reflecting members such as reflector, reflectance coating can be carried on LED light source.
Reflecting layer：
Reflecting layer can have the reflectance coating of function of optical reflection, reflector plate, reflecting plate, reflection paint etc., preferred white
Reflecting layer.It is mainly PET and PC base materials etc. that it, which makes material, and reflectivity reaches as high as 90%.
Reflecting layer is generally located on bottom or the surrounding of LED light source, its role is to：When LED light source lights, reflecting layer
The light for injecting luminescent device bottom or side is reflected back long after glow luminous material, so as to improve excitation light intensity, made more than length
Brightness luminescent material excites more abundant and improves overall luminosity；When LED light source extinguishes, by long after glow luminous material
The after-glow light for injecting luminescent device bottom or side reflects back, and plays a part of reflecting blast.Especially, reflecting layer can be
The pad pasting with reflecting power, skin of paint, layer of ink or electrodeposited coating being arranged on the circuit board of LED light source etc., it is simplest anti-
Layer is penetrated as the white coating in LED circuit board.
Filter layer：
Filter layer is the intensity for the light that can decay, the optical element of change spectral component, mainly passes through plastics or sheet glass
Special dye or pigment etc. is added to be made.Such as high pass, low pass or bandpass filter layer etc. can be set on demand, being not required to
The spectral component wanted filters out.
Brightness enhancement film：
Brightness enhancement film is the brightness enhancement film using prismatic lens as representative.For light from after projecting light diffusion module, the directive property of its light is poor,
Therefore the direction of light can be corrected using brightness enhancement film.Its principle is to reach convergence light with reflection by the refraction of light, carry
The purpose of high frontal luminance, to increase light from the service efficiency after light diffusion module injection so that overall luminescent device
Briliancy increases substantially, and highest can reach 60%-100%.
Brightness enhancement film is mainly with polyester or makrolon or PET coatings etc. for material, usually using two panels brightness enhancement film.Each other
Direction is vertical, light is concentrated so as to increase briliancy.
Control circuit：
Control circuit can be simple control circuit, or IC control circuits etc., can control circuit keying, to LED light
Source continued power, or by some cycles or dutycycle to LED light source intermittent power supply.
Photovoltaic device：
Photovoltaic device generally comprises monocrystalline silicon photovoltaic device or polycrystalline silicon photovoltaic device etc., can be specifically solar panels or
Solar energy film etc..
Photovoltaic device can utilize ambient light to generate electricity, and typically have the function of illuminance transducer concurrently：Control circuit being capable of basis
The illumination Numerical Control luminescent device automatic open close that photovoltaic device detects.
Rigidity can be both made in whole luminescent device, can also be made into flexibility；Both the structure of double-side can be made,
The luminous structure of one side can be made.
Major advantage of the present utility model is：
1st, the utility model product can provide luminosity height, luminous long afterglow that is uniform, can standardizing large-scale production
Area source；2nd, the utilization of light can be made more abundant under equal power consumption, so as to improve the stimulation effect of long after glow luminous material,
And increase the luminosity of luminescent device；
3rd, by setting light to spread module so that excitation source is luminous evenly, so that luminescent device is luminous softer,
Particularly can be by adjusting the member height in light diffusion module, so as to adjust between excitation source and long after glow luminous material
Away from so as to reach good balance between brightness and luminous uniformity in exciting for long after glow luminous material；It is anti-by setting up
Penetrate layer so that the Integral luminous brightness of luminescent device is improved, and highest can reach more than 30%；By setting up brightness enhancement film,
So that the frontal luminance of luminescent device increases substantially, highest can reach 60%-100%；, can mistake by setting filter layer
Unwanted spectrum is filtered, glow color is preferably met design requirement.
4th, the utility model can combine the LED light source of existing conventional lighting function, by by identical or different luminous face
The long after glow luminous material of color, carry out subregion with the LED light source of identical or different glow color and set to form word or pattern, and
Control the LED light source of identical or different glow color luminous by different cycles or dutycycle interval, make the luminous of luminescent device
Pattern is more diversified, and function is more, and application is more extensive.
5th, the utility model product is easy to assembling and modularized production, can be used directly or is made module and be used as secondary development
Component is used to manufacture various energy-saving illumination utensils or warning indication mark or light-emitting instrument of meeting an urgent need etc., and application field is wide.
Brief description of the drawings
Fig. 1 is cross-sectional view of the present utility model；
Fig. 2 is a kind of configuration schematic diagram of the long-persistence luminous device of direct-light type LED backlight of embodiment one；
Fig. 3 is a kind of configuration schematic diagram of the long-persistence luminous device of direct-light type LED backlight of embodiment two；
Fig. 4 is a kind of configuration schematic diagram of the long-persistence luminous device of direct-light type LED backlight of embodiment three；
Fig. 5 is a kind of detonation configuration of the long-persistence luminous device of rigid cabochon of direct-light type LED backlight of example IV
Schematic diagram；
Fig. 6 is a kind of configuration schematic diagram of the solar energy Long afterglow lamp of direct-light type LED backlight of embodiment five；
Fig. 7 is a kind of configuration schematic diagram of the solar energy long afterglow plate of direct-light type LED backlight of embodiment six；
Fig. 8 is a kind of configuration schematic diagram of the solar energy long afterglow plate of direct-light type LED backlight of embodiment seven；
Fig. 9 is a kind of configuration schematic diagram of the solar energy Long afterglow lamp of direct-light type LED backlight of embodiment eight；
Figure 10 is a kind of detonation configuration of the long afterglow Fire Safety Evacuation Sign board of direct-light type LED backlight of embodiment nine
Schematic diagram.
Embodiment
It is described in conjunction with the accompanying embodiment of the present utility model.
Specific encapsulating structure of the present utility model can be powered in accordance with patent spirit required design above and be used as or make
Be used to manufacture panel light, emergency light, luminous escape mark, outdoor illumination billboard etc. for two sub-assemblies, be widely used in traffic,
The fields such as fire-fighting, building, ship.
Embodiment one：
A kind of long-persistence luminous device of direct-light type LED backlight as shown in Figure 2, including：More than packing component 211212, length
Brightness luminous material layer 220, light diffusion module 230, LED light source 240, reflecting layer 250, brightness enhancement film 270.
Packing component 211：
Packing component 211212 includes encapsulation fence 211 and transparent enclosure glue 212.It is aluminium alloy wherein to encapsulate fence 211
Manufactured square frame；Transparent enclosure glue 212 is transparent glue of epoxy resin.Encapsulating fence 211 will be each by transparent enclosure glue 212
Component package is into an entirety.
Long after glow luminous material layer 220：
Long after glow luminous material layer 220 uses SrAl of the transparent epoxy resin with glow color for yellow green2O4Long afterglow is sent out
Light powder 1:1 mixing, the square sheet material of 2mm thickness is then prefabricated into by casting.
Light spreads module 230：
Light diffusion module 230 is diffusion sheet.Diffusion sheet uses PC plate material, utilize to be that roller bearing hot pressing is formed concavo-convex coarse
Face.
Light diffusion module 230 is adhesively fixed in the bottom of brightness enhancement film 270 by transparent enclosure glue 212.
LED light source 240：
LED light source 240 is SMD 2835 lamp bead of blue light, is welded on into array on aluminum base circuit board.Aluminum base circuit board
It is adhesively fixed by transparent enclosure glue 212 and serves as drain pan in the bottom of diffusion sheet 230.
Reflecting layer 250：
The aluminum base circuit board surface of LED light source 240 is sprayed with white paint, serves as the effect in reflecting layer.
Brightness enhancement film 270：
Brightness enhancement film 270 is square multi-functional prismatic lens, is adhesively fixed by transparent enclosure glue 212 in long after glow luminous material
On the bottom surface of layer 220.
A kind of long-persistence luminous device of direct-light type LED backlight of the present embodiment, energization twilight sunset maintain luminosity to reach
To 15cd/m2, it is fully powered-off after after-glow brightness be more greatly improved, have power saving, brightness height, guarantee degree height etc. excellent
Point, it can be combined as component with other devices and panel light or illumination billboard or traffic security protection mark etc. is made.
Embodiment two：
A kind of long-persistence luminous device of direct-light type LED backlight as shown in Figure 3, including：More than packing component 311312, length
Brightness luminous material layer 320, light diffusion module 330, LED light source 340, reflecting layer 350, control circuit 380.
Packing component 311312：
Packing component 311312 includes encapsulation fence 311 and transparent enclosure glue 312.It is ABS materials wherein to encapsulate fence 311
By being molded one-time formed square frame；Transparent enclosure glue 312 is PU resin transparent glue.Encapsulation fence 311 passes through transparent envelope
Glue 312 is filled by each component package into an entirety.
Long after glow luminous material layer 320：
Long after glow luminous material layer 320 uses SrAl of the transparent PU resins with glow color for yellow green2O4It is long-persistence luminous
Powder 1:1 mixing, the square sheet material of 2mm thickness is then prefabricated into by casting.
Light spreads module 330：
Light diffusion module 330 is using the raised PC plate material of array
Light diffusion module 330 is connected with long after glow luminous material layer 320 by transparent enclosure glue, and by controlling light to spread
The height of module 330 adjusts the spacing of LED light source 340 and long after glow luminous material layer 320.
LED light source 340：
LED light source 340 is direct insertion blue light straw hat formula LED, and array is arranged on glass wiring board.Glass wiring board leads to
Cross transparent enclosure glue 312 to be adhesively fixed in the bottom of light diffusion module 330, now, blue light straw hat formula LED is located exactly at array
Raised lower section.
Reflecting layer 350：
Reflecting layer 350 be white PC materials by being molded one-time formed square sheet material, bonded by transparent enclosure glue 312
It is fixed on the bottom surface of encapsulation fence 311 and serves as drain pan.
Control circuit 380：
Control circuit 380 is connected with LED light source 340, can control LED light source 340 with 10s cycle, 10% dutycycle
The luminous simultaneously inspired long-lasting phosphor layer 320 of interval.
Control circuit 380 is adhesively fixed on reflecting layer 350 by packaging plastic.
A kind of long-persistence luminous device of direct-light type LED backlight of the present embodiment, feature can be automatically with 10s after being switched on
Cycle and 10% dutycycle to LED light source 340 power supply and inspired long-lasting phosphor layer 320, energization twilight sunset maintain hair
Brightness can reach 12cd/m2, it is fully powered-off after after-glow brightness be more greatly improved, easy for installation, luminosity is high,
It is luminous uniform, and function of emergency illumination can be played under powering-off state, it can be combined and be made commonly with other devices as component
Illumination or emergency lighting or road security protection mark etc..
Embodiment three
A kind of long-persistence luminous device of direct-light type LED backlight as shown in Figure 4, including：More than encapsulation framework 410411, length
Brightness luminous material layer 420, light diffusion module 430, LED light source 440, reflecting layer 450, control circuit 480.
Packing component 410411：
Packing component 410411 includes transparent gum cover 410 and transparent enclosure glue 411.Wherein transparent gum cover 410 is PU resins
Manufactured section is rectangular hollow tube；Transparent enclosure glue 411 is PU resin transparent glue, turns into envelope naturally after curing molding
Fill a part for component.Each component is encapsulated in by transparent enclosure glue 411 in the hollow cavity of transparent gum cover 410.
Long after glow luminous material layer 420:
Long after glow luminous material layer 420 uses the SrAl of transparent PU resins and glow color for yellow green2O4It is long-persistence luminous
After material powder is well mixed, extrusion molding is into flexible strip shape structure.
Light spreads module 430：
Light diffusion module 430 is the flexible XLK100 diffusion barriers of strip, is adhesively fixed by transparent enclosure glue 411 in length
The bottom of afterglow materials layer 420.
LED light source 440：
LED light source 440 is made of the lamp bead arrangement of blue light paster 2835 is in line and is welded on strip flexible PCB
Flexible LED lamp band, it is adhesively fixed by transparent enclosure glue 411 and the bottom of module 430 is spread in light.
Reflecting layer 450：
White coating is scribbled on the strip flexible PCB of LED light source 440, serves as reflecting layer.
Control circuit 480：
Control circuit 480 is connected by circuit with LED light source 440, can control LED light source 440 with 10s cycle and 10%
Dutycycle interval is luminous and inspired long-lasting phosphor layer 420.
A kind of long-persistence luminous device of direct-light type LED backlight of this embodiment, energization twilight sunset maintain luminosity to reach
To 11cd/m2, it is fully powered-off after after-glow brightness be more greatly improved, power consumption is low, and brightness is high, high to human eye comfort level,
It is easy to install, component can be used as to be used to make various luminescent devices, may also be used for making wearing illuminating indicating device, such as
Special safety clothes, engineering clothes etc., or be trapped among on columnar object, general lighting or decoration are used as on such as trees or electric pole,
The effect that induction instruction is played on railing on both sides of the road can also be wrapped in, is also used as luminous wrist band or wearing photophore
Part etc..
Example IV
A kind of long-persistence luminous device of rigid cabochon of direct-light type LED backlight as shown in Figure 5, including：Packing component
511512nd, long after glow luminous material layer 520, light diffusion module 530, LED light source 540, reflecting layer 550.
Packing component 511512：
Packing component 511512 includes encapsulation base plate 511 and transparent enclosure glue 512.Wherein encapsulation base plate 511 is ABS materials
By being molded the one-time formed globoidal structure with frame, cambered surface is provided with 10 strip connected in stars；Transparent enclosure glue 512 is
PU resin transparent glue.Long after glow luminous material layer 520, light diffusion module 530, LED light source 540 from top to bottom set gradually and led to
Transparent enclosure glue 512 is crossed to be encapsulated in the frame of encapsulation base plate 511.
Long after glow luminous material layer 520：
Long after glow luminous material layer 520 is the SrAl for using PU transparent resins with glow color for yellow green2O4Long afterglow is sent out
Light powder 1:1 mixing, the then sheet material by injection molding into 2mm thickness, and being cut into and encapsulation base plate 511 with laser cutting machine
Corresponding cambered surface.
Light spreads module 530:
Light diffusion module 530 is flexible XLK100 diffusion barriers, is adhesively fixed by transparent enclosure glue 512 long-persistence luminous
On the bottom surface of material layer 520.
LED light source 540:
LED light source 540 is SMD 2835 lamp bead of blue light, is arranged in a straight line and is welded on strip aluminum base circuit board.It is long
Bar shaped aluminum base circuit board in packaging plastic by being adhesively fixed in the groove of encapsulation base plate 511.Each bar LED is connected by circuit.
Reflecting layer 550：
The strip aluminum base circuit board surface of LED light source 540 scribbles white paint, serves as the effect in reflecting layer.
A kind of long-persistence luminous device of rigid cabochon of direct-light type LED backlight of this embodiment, energization twilight sunset maintain hair
Brightness can reach 13cd/m2, it is fully powered-off after after-glow brightness be more greatly improved, there is round-the-clock continuous illumination work(
Can, and arc shape can be used as component to be used to make various luminescent devices with required design.Such as pass through gemel connection or riveting
Connection etc. is arranged on floor light or induction mark on electric pole, concrete column etc., can also make warning with reference to reflectorized material
The security devices such as post.
Embodiment five
A kind of solar energy Long afterglow lamp of direct-light type LED backlight as shown in Figure 6, including packing component 610611,612,
Long after glow luminous material layer 620, LED light source 640), control circuit 680, photovoltaic device 690, charge storage element 6100.
Packing component 610611612：
Packing component 610611612 includes encapsulation base 610, transparent enclosure glue 611 and light-emitting lamp shade 612.Wherein, encapsulate
For component 610 by ABS materials by being combined after being molded repeatedly shaping, its top is regular hexagon bottom plate, and bottom is installation bottom
Seat, mounting seat is provided with screw hole, for installing fixation；Transparent enclosure glue 611 is transparent glue of epoxy resin；Light-emitting lamp shade
612 be PC materials by being molded six prism diffusers one-time formed, provided with bottom opening cavity, the top of light-emitting lamp shade 612
Portion is provided with square groove；The bottom opening of the regular hexagon bottom plate insertion light-emitting lamp shade 612 on the top of encapsulation base 610 simultaneously passes through envelope
Cementing synthesis backlight body is filled, each component is encapsulated in by transparent enclosure glue 611 in the cavity of light-emitting lamp shade 612.：More than length
Brightness luminous material layer 620：
Long after glow luminous material layer 620 is epoxy transparent resins and glow color is the SrAl of yellow green2O4It is long-persistence luminous
Powder 1:The rectangle sheet material of 2mm thickness is prefabricated into after 1 mixing by casting, is adhesively fixed and sent out by transparent enclosure glue 611
On the medial surface of light lampshade 612.
LED light source 640：
LED light source 640 is the blue light adopting surface mounted LED of COB encapsulation, and array is evenly spaced in square aluminum-based circuit board,
And it is fixed on by transparent enclosure glue bond on the bottom surface of long after glow luminous material layer 620.
Reflecting layer 650：
White coating is scribbled in the square aluminum-based circuit board of LED light source 640, serves as the effect in reflecting layer.
Control circuit 680：
Control circuit 680 is connected by circuit with LED light source 640, can control circuit auto switching and charge storage element round the clock
6100 discharge and recharge, and blue-ray LED is controlled with 10s cycle, the luminous luminous material of simultaneously inspired long-lasting of 10% dutycycle interval
The bed of material 620.
Photovoltaic device 690：
Photovoltaic device 690 is 2.5V/480MAH prismatic single crystal silicon solar cell plates, is adhesively fixed and sent out by packaging plastic
In the top groove of light lampshade 612.
Charge storage element 6100：
Charge storage element 6100 is 2.4V/1600MAH nickel-hydrogen accumulators, is connected by circuit with control circuit 680.
A kind of solar energy Long afterglow lamp of direct-light type LED backlight of this embodiment can be automatic round the clock under control circuit control
Open and close, energization twilight sunset maintains luminosity to reach 12cd/m2, it is fully powered-off after after-glow brightness be more greatly improved,
It is long, high to the comfort level of human eye to have the advantages that not consume civil power, continuous illumination time, suitable for park, garden, lawn, square
Etc. occasion.
Embodiment six
A kind of long afterglow plate of direct-light type LED backlight as shown in Figure 7, including packing component 711712713, long afterglow hair
Optical material layer 720, light diffusion module 730, LED light source 740, reflecting layer 750, filter layer 760, brightness enhancement film 770.
Packing component 711712713：
Packing component 711712713 includes luminescent veil 712, encapsulation drain pan 711 and transparent enclosure glue 713.It is wherein luminous
Mask 712 is PC materials by being molded square light penetrating object one-time formed, provided with bottom opening cavity；It is logical to encapsulate drain pan 711
ABS materials are crossed by being molded one-shot forming；Transparent enclosure glue is PU resin transparent glue.Encapsulate the top of drain pan 711 insertion light-emitting area
The bottom opening of cover 712 is simultaneously combined into the backlight body with internal cavity, filter layer 760, long afterglow hair by packaging plastic
Optical material layer 720, brightness enhancement film 770, light diffusion module 730, LED light source 740 from top to bottom set gradually and pass through transparent enclosure
Glue 713 is encapsulated in the cavity of backlight body.
Long after glow luminous material layer 720：
Long after glow luminous material layer 720 is epoxy transparent resins and glow color is the SrAl of yellow green2O4It is long-persistence luminous
Powder 1:The square sheet material of 2mm thickness is prefabricated into after 1 mixing by casting.
Light spreads module 730：
Light diffusion module 730 is the square PC diffuser plates with grid, and what is utilized is that roller bearing hot pressing forms concavo-convex mat surface.
LED light source 740：
LED light source 740 is the SMD ultra-bright LED of blue light of 12 SMD encapsulation, with 3 × 4 arrangement mode side of being welded on
On shape aluminum base circuit board, it is adhesively fixed by transparent enclosure glue 713 on the bottom surface that light spreads module 730, now, blue light paster
Formula ultra-bright LED is located exactly in the grid of light diffusion module 730.
Reflecting layer 750：
The surface of the aluminum base circuit board of LED light source 740 coats serves as reflecting layer 750 by white paint.
Filter layer 760：
Filter layer 760 is long wave flow-through optical filter, the blue light and purple light in the light sent can be filtered out, so as to improve to people
The comfort level of eye.
Brightness enhancement film 770：
Brightness enhancement film 770 is 3M optical brightening membranes, by two panels brightness enhancement film into direction is vertical each other, light is concentrated so as to obtain
About 130% faces luminance gain.
A kind of long afterglow plate contrast like product of direct-light type LED backlight of this embodiment, energization twilight sunset maintain luminance
Degree can reach 11cd/m2, it is fully powered-off after after-glow brightness be more greatly improved, have in positive apparent direction higher bright
Degree, and the short wavelength part being harmful in the light sent to human eye can be filtered, therefore to the comfort level of human eye on the original basis
It is further enhanced, light homogeneous soft, may be used as outdoor billboard or security protection mark, is also used as landscape ornamental photograph
It is bright.
Embodiment seven
A kind of long afterglow plate of direct-light type LED backlight as shown in Figure 8, including packing component 811812813, long afterglow hair
Optical material layer 820, LED light source 840, reflecting layer 850, reflecting material layer 8100.
Packing component 811812813：
Packing component 811812813 includes luminescent veil 812, encapsulation drain pan 811 and encapsulation transparent adhesive tape 813.It is wherein luminous
Mask 812 is PC materials by being molded square light penetrating object one-time formed, provided with bottom opening cavity；It is logical to encapsulate drain pan 811
It is transparent glue of epoxy resin that ABS materials, which are crossed, by being molded one-shot forming, transparent enclosure glue 813.Encapsulate the top of drain pan 811 insertion hair
The bottom opening of smooth surface cover 812 is simultaneously combined into the backlight body with internal cavity by packaging plastic, and each component passes through saturating
Bright packaging plastic 813 is encapsulated in the cavity of backlight body.
Long after glow luminous material layer 820：
Long after glow luminous material layer 820 is epoxy transparent resins and glow color is the SrAl of yellow green2O4It is long-persistence luminous
Powder 1:The square sheet material of 2mm thickness is prefabricated into after 1 mixing by casting.Square sheet material center hollow out goes out class ellipse
Lightening hole.
Long after glow luminous material layer 820 is adhesively fixed on the bottom surface of luminescent veil 812 by transparent enclosure glue 813.
LED light source 840：
LED light source 840 is the SMD ultra-bright LED of blue light of 10 SMD encapsulation, is equally spacedly welded on square aluminium base electricity
The surrounding of road plate, and 2 gold-tinted straw hat formula LED are welded on the center of square aluminum base circuit board.
LED light source 840 is adhesively fixed on the bottom surface of long after glow luminous material layer 820 by transparent enclosure glue 813, this
When, gold-tinted straw hat formula LED passes from the lightening hole of long after glow luminous material layer 820 just.
Reflecting layer 850：
The aluminum base circuit board of LED light source 840 posts aluminium foil, serves as the effect in reflecting layer.
Reflecting material layer 8100：
Reflecting material layer 8100 is yellow green reflective membrane, is pasted and fixed on luminescent veil 812.
A kind of long afterglow plate of direct-light type LED backlight of this embodiment, the SMD ultra-bright LED of blue light is with 10s cycle
Luminous and inspired long-lasting phosphor layer, gold-tinted straw hat formula LED connect 10% with 20s cycle with 10% dutycycle high frequency
Dutycycle low frequency flicker lights, and energization twilight sunset maintains luminosity to reach 15cd/m2, it is fully powered-off after after-glow brightness more have
It is greatly improved, so as to both have Remote Dynamic alarm function, there is the assisting lighting function of process again, also certain is anti-
Light function, and have the advantages that power consumptive province, high to the comfort level and identification of human eye, to can be used as antifog guiding mark, fire-fighting is escaped
Raw mark etc..
Embodiment eight
A kind of solar energy Long afterglow lamp of direct-light type LED backlight as shown in Figure 9, including more than packing component 910911, length
It is brightness luminous material layer 920, LED light source 940, reflecting layer 950, control circuit 980, photovoltaic device 990, charge storage element 9100, inverse
Reflecting material 9120.
Packing component 910911：
Packing component 910911 includes encapsulation drain pan 910 and transparent enclosure glue 911.Wherein encapsulation drain pan 910 passes through ABS materials
Matter after being molded repeatedly shaping by combining, and its top is that cylinder is raised, and bottom is mounting seat, and mounting seat is provided with
Screw hole, for installing fixation；Transparent enclosure glue 911 is transparent glue of epoxy resin.Each component passes through the envelope of transparent enclosure glue 911
In the cavity of long after glow luminous material layer 920.Component can be connected by circuit or be fixed with packaging plastic.
Long after glow luminous material layer 920：
Long after glow luminous material layer 920 is epoxy transparent resins and glow color is the SrAl of yellow green2O4It is long-persistence luminous
Powder 1:Cylindrical structure that 1 mixing solidify afterwards are molded, provided with bottom opening cavity, top is provided with square groove；Encapsulate drain pan
The bottom opening of the raised embedded long after glow luminous material layer 920 of the cylinder on 910 tops is simultaneously combined into backlight by packaging plastic
Body.LED light source 940：
LED light source 940 is that the blue light adopting surface mounted LED array of COB encapsulation is evenly spaced on square aluminum base circuit board, and
It is fixed on by transparent enclosure glue bond on the medial surface of long after glow luminous material layer 920.
Reflecting layer 950：
The top surface of aluminum base circuit board where LED light source 940 is coated with white paint, serves as reflecting layer 950.
Control circuit 980：
Control circuit 980 is connected by circuit with LED light source 940, can control circuit auto switching and charge storage element round the clock
9100 discharge and recharge, and blue-ray LED is controlled with 10s cycle, the luminous luminous material of simultaneously inspired long-lasting of 10% dutycycle interval
The bed of material 920.Photovoltaic device 990：
Photovoltaic device 990 is 2.5V/480MAH prismatic single crystal silicon solar cell plates, is adhesively fixed by packaging plastic in length
In the top groove of afterglow materials layer 920.
Charge storage element 9100：
Charge storage element 9100 is 2.4V/1600MAH nickel-hydrogen accumulators, is connected by circuit with control circuit 980.
Reflecting material 9120：
Reflecting material 9120 is microprism reflecting film, is adhesively fixed by packaging plastic in long after glow luminous material layer
On 920 bottom outside face.
A kind of solar energy Long afterglow lamp of direct-light type LED backlight of this embodiment has certain reflective function and good
Luminescent properties, and automatic open close round the clock, energization twilight sunset luminosity can be maintained to reach 13cd/m under control circuit control2,
After-glow brightness after fully powered-off is more greatly improved, and has and does not consume civil power, continuous illumination time length, to the comfortable of human eye
High lamp advantage is spent, suitable for occasions such as park, garden, lawn, squares.
Embodiment nine
A kind of long afterglow Fire Safety Evacuation Sign board of direct-light type LED backlight as shown in Figure 10, including packing component
10111012101310141015th, long after glow luminous material layer 1020, light diffusion module 1030, LED light source 1040, reflecting layer
1050th, control circuit 1080, charge storage element 1100.
Packing component 10111012101310141015：
Packing component 10111012101310141015 include package floor 1011, package panel 1012, left frame 1014,
Left frame 1013 and transparent enclosure glue 1015.It is the top and both sides opening that aluminium alloy is processed into wherein to encapsulate drain pan 1011
Square drain pan；Package panel 1012 is square glass plate made of clear glass, and posting hollow out thereon has fire-fighting life-saving mark
The Counter-reflection membrane of pattern and word；Left frame 1014, left frame 1013 are by ABS materials by being molded one-shot forming；Transparent enclosure
Glue 1015 is transparent glue of epoxy resin.Package panel 1012 is respectively embedded into encapsulation drain pan with left frame 1014, left frame 1013
With being packaged into the sign board body with airtight cavity in the opening of both sides and by packaging plastic, each component passes through at 1011 top
Transparent enclosure glue 1015 is encapsulated in the cavity of sign board body.
Long after glow luminous material layer 1020：
SrAl of the long after glow luminous material layer 1020 by epoxy transparent resins and glow color for yellow green2O4Long afterglow
Luminescent powder 1:The pattern of fire-fighting life-saving mark and the prefabricated component of word is made after 1 mixing, and is bonded by transparent enclosure glue 1015
It is fixed on the bottom of package panel.
Light spreads module 1030：
Light diffusion module 1030 is PC diffuser plates, and what is utilized is that roller bearing hot pressing forms concavo-convex mat surface and cuts into required shape
Shape, it is adhesively fixed by transparent enclosure glue 1015 on the bottom surface of package panel 1012.
LED light source 1040：
LED light source 1040 uses the SMD 335 side-emitting pearl of blue light, is arranged in the pattern and word of fire-fighting life-saving mark
Shape be welded on the square circuit board of rigidity and be made, and be adhesively fixed by packaging plastic and the bottom surface of module 1030 spread in light
On.Reflecting layer 1050：
White paint is coated with the surface of the square circuit board of rigidity of LED light source 1040, serves as the effect in reflecting layer 1050.
Control circuit 1080：
Control circuit 1080 is connected by circuit with LED light source 1040, can control the discharge and recharge of charge storage element 1100, and is controlled
Blue-ray LED continuous illumination processed or with 9s cycle, 11% dutycycle interval is luminous and inspired long-lasting phosphor layer 1020.
Charge storage element 1100：
Charge storage element 1100 is 2.4V/1600MAH nickel-hydrogen accumulators, and is connected by circuit with control circuit 1080.
The long afterglow Fire Safety Evacuation Sign board of a kind of direct-light type LED backlight of this embodiment, in control circuit 1080
Under control：Usually by civil power to the continued power of LED light source 1040, during power failure by charge storage element 1100 to LED light source 1040 with 9s
Cycle, 11% dutycycle intermittent power supply, the electric energy of charge storage element 1100 deficiency or during device failure by long-persistence luminous
Material layer 1020 continues to light by light-decay characteristic, and emergent indicative function can be played under various mal-conditions, therefore with high
Obtain guarantee degree.
When the present embodiment product lights, the region of light-emitting area Shangyang version long after glow luminous material layer 1020 lights, its remaining part
Divide and do not light, and there is the advantages of after-glow brightness is high, energization twilight sunset maintains luminosity to reach 14cd/m2, after fully powered-off
After-glow brightness be more greatly improved, be mainly disposed to market, market, place of public amusement should be in the wall of evacu-ation walk
On.
Preferred version of the present utility model is the foregoing is only, it is all in this reality not to limit the utility model
With new spiritual and any modification within principle, made, equivalent substitution etc., protection model of the present utility model should be included in
In enclosing.
Claims (10)
- A kind of 1. long-persistence luminous device of direct-light type LED backlight, it is characterised in that：Including packing component (1), long-persistence luminous Material layer (2), LED light source (4), reflecting layer (5)；Described packing component (1) be frame or panel or bottom plate or its any two Individual and the above sub-assembly；Long after glow luminous material layer (2) is provided with the upper section of LED light source (4) or is fully provided with length Afterglow materials layer (2)；Reflecting layer (5) is arranged on the periphery of LED light source (4), or is arranged on the lower section of LED light source (4)；It is long Afterglow materials layer (2), LED light source (4), reflecting layer (5) are located on packing component (1) or packing component (1) is interior.
- A kind of 2. long-persistence luminous device of direct-light type LED backlight according to claim 1, it is characterised in that：Described Light diffusion module (3) is provided between LED light source (4) and long after glow luminous material layer (2).
- A kind of 3. long-persistence luminous device of direct-light type LED backlight according to claim 1, it is characterised in that：Described Brightness enhancement film (7) is provided between LED light source (4) and long after glow luminous material layer (2)；Described brightness enhancement film (7) and LED light source (4) Between, or/and, light diffusion module (3) is additionally provided between described brightness enhancement film (7) and long after glow luminous material layer (2).
- A kind of 4. long-persistence luminous device of direct-light type LED backlight according to claim 1, it is characterised in that：Described The top of long after glow luminous material layer (2) is provided with filter layer (6).
- 5. a kind of long-persistence luminous device of direct-light type LED backlight according to claim 1 or 2 or 3 or 4, its feature exist In：Described packing component (1) is to include the packing component of the panel for being combined with word or pattern, or comprising being combined with reflex reflection The packing component of the panel of material.
- 6. a kind of long-persistence luminous device of direct-light type LED backlight according to claim 1 or 2 or 3 or 4, its feature exist In：Described long after glow luminous material layer (2) is the long after glow luminous material layer for being arranged to word or pattern；Or for hollow out Or/and the word of printing opacity or the long after glow luminous material layer of pattern；Or it is the long after glow luminous material layer with hole.
- A kind of 7. long-persistence luminous device of direct-light type LED backlight according to claim 1, it is characterised in that：Described LED light source (4) is also connected with the control circuit (8) with specific function, and described specific function is：Control the hair of LED light source (4) The function of luminous power, or/and, the function that control LED light source (4) is lighted with certain cycle or dutycycle interval.
- A kind of 8. long-persistence luminous device of direct-light type LED backlight according to claim 1, it is characterised in that：Described LED light source (4) for two groups or more possess respectively independent circuits different wave length LED.
- A kind of 9. long-persistence luminous device of direct-light type LED backlight according to claim 7, it is characterised in that：Described Control circuit (8) be two groups or more the LED with control LED light source (4) respectively with different power or cycle or The luminous control circuit of dutycycle.
- A kind of 10. long-persistence luminous device of direct-light type LED backlight according to claim 7 or 9, it is characterised in that：Institute The control circuit (8) stated also has charge storage element, or charge storage element and a charge and discharge electrical component by connection, or charge storage element and fills Discharge assembly and photovoltaic device (9).
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| CN201720926521.9U CN206944046U (en) | 2017-07-28 | 2017-07-28 | A kind of long-persistence luminous device of direct-light type LED backlight |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109742130A (en) * | 2019-01-30 | 2019-05-10 | 京东方科技集团股份有限公司 | Organic elctroluminescent device and control method |
| CN110070806A (en) * | 2019-03-31 | 2019-07-30 | 方迪勇 | A kind of constructive method of modularization large lamp box |
| CN114583082A (en) * | 2022-02-24 | 2022-06-03 | 深圳市华星光电半导体显示技术有限公司 | Display panel, manufacturing method thereof and display device |
| WO2022248358A1 (en) * | 2021-05-26 | 2022-12-01 | Lufthansa Technik Ag | Emergency lighting element |
-
2017
- 2017-07-28 CN CN201720926521.9U patent/CN206944046U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109742130A (en) * | 2019-01-30 | 2019-05-10 | 京东方科技集团股份有限公司 | Organic elctroluminescent device and control method |
| CN109742130B (en) * | 2019-01-30 | 2021-01-26 | 京东方科技集团股份有限公司 | Organic electroluminescent display device and control method |
| CN110070806A (en) * | 2019-03-31 | 2019-07-30 | 方迪勇 | A kind of constructive method of modularization large lamp box |
| WO2022248358A1 (en) * | 2021-05-26 | 2022-12-01 | Lufthansa Technik Ag | Emergency lighting element |
| CN114583082A (en) * | 2022-02-24 | 2022-06-03 | 深圳市华星光电半导体显示技术有限公司 | Display panel, manufacturing method thereof and display device |
| CN114583082B (en) * | 2022-02-24 | 2023-12-01 | 深圳市华星光电半导体显示技术有限公司 | Display panel, manufacturing method thereof and display device |
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