CN104507194A - Fabrication method of third-dimensional (3D) electroluminescent device - Google Patents
Fabrication method of third-dimensional (3D) electroluminescent device Download PDFInfo
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Abstract
The invention discloses a fabrication method of a third-dimensional (3D) electroluminescent device. The method comprises the following steps: sequentially fabricating structures of a three-dimensional object, a base adsorption layer, a first conductive layer, a grey level adjustment layer, a second conductive layer, an insulated dielectric layer, an electroluminescent layer, a third conductive layer, a protective layer and a transparent color layer of a non-planar substrate by using a spraying technology, and completely covering the structure of the previous layer; respectively connecting the conductive layers by virtue of a multi-polar hierarchical voltage driver, wherein the first conductive layer is used for controlling the grey level and is partitioned into a plurality of independent control regions or pixel elements; the first conductive layer is completely covered by the grey level adjustment layer; the second conductive layer and the third conductive layer are controlled to flicker. Large-area fabrication of the electroluminescent device is achieved; working at low safe voltage is achieved; the thickness is simple to recognize; third-dimensional multiple angles are not limited, thus the fabrication method can be widely applied to fabrication of the third-dimensional electroluminescent device, and can be widely applied to object advertisements, building walls and safety signs.
Description
Technical field
The invention belongs to electroluminescent device applications technical field.
Background technology
Electro-luminescent flat device has another name called electroluminescent flat device, as a kind of flexible plastic film face luminescence display light source, has been widely used in building decoration, automobile instrument, liquid crystal back illumination, billboard etc.Present stage, novel flat-plate Display Technique constantly pursued the technical indicators such as large, light, thin, economize on electricity.Mostly current flat-panel monitor is based on glass, plastic film substrate, as: Field Emission Display (FED), liquid crystal display (LCD), display of organic electroluminescence (OEL or OLED), plasma scope (PDP), LED large scale display.Its shortcoming be flat glass easily broken, area is limited, weight is large, operational heat, inflexibility, the production cycle is grown, cost is higher, cannot realize three-dimensional multifaceted light-emitting etc.
Existing techniques in realizing 3D luminescence is all use LED Light-Emitting Diode, is realized by stereo transparent light guide structure; Or use huge floodlight to irradiate building body, billboard.Use the stereo luminous of long afterglow luminous material manufacture, need secondary light source, and good visual twilight sunset only has 1 hour.And existing electroluminescent technology, be based upon a kind of plane luminescence device on organic or inorganic electroluminescent material basis, it uses vacuum coating or screen printing technique to be made into fixing luminous pattern or pixel elements, realize simplex switch by control circui to flash, and the existing a large amount of elaboration in open source information of large-area electroluminescent device, patent WO9626627, JP31-157070, Chinese patent 87107413.3, 87105208.3, 96122380.4, 89106585.7, 2014103731850, 2013104986532, 2013106949379, 2010101971758 etc.The AC electroluminescence device basic structure of existing device is all by two electrode control realization light-emitting modes, in plane or line body, make back electrode, insulating barrier, luminescent layer, ITO electrode by mode of printing or application pattern, realize flashing completely by driver or zones of different flash control.Chinese patent 201110385392.4,201210022011.0 records the structure using CaCu 3 Ti 4 O material to realize multilayer electronic transmitting raising brightness, but they all cannot regulate gray scale, especially three-dimensional multiple local gray level contrast, after the realization as existing regular flat and stereo luminescence technology all needs pellet parts to prepare, cutting is pasted.
The electroluminescent device preparation method of a kind of 3D solid of the present invention, it comprises: the stereoscopic three-dimensional object of Non-planar substrates, basic adsorption layer, the first conductive layer, gray scale regulating course, the second conductive layer, insulating medium layer, electroluminescence layer, the 3rd conductive layer, protective layer, transparent color chromatograph; Use spraying coating process to make above structure successively, and make it cover last layer structure completely; Use multipole tapping voltage driver connecting conductive layer respectively, the first conductive layer controls gray scale, and point is separated with multiple separate control area or pixel elements, and the first conductive layer is all covered by gray scale regulating course; Second conductive layer and the 3rd conductive layer control to flash.Achieve large-area manufacturing, lowly cause safe voltage work, simple and easy identification thickness, the unrestricted luminescent device of stereo multi-angle.
The present invention can be widely used in the preparation of stereo luminous device, all can widely use at advertisement in kind, construction wall, secure ID.
Summary of the invention
An electroluminescent device preparation method for 3D solid, it comprises: the stereoscopic three-dimensional object of Non-planar substrates, basic adsorption layer, the first conductive layer, gray scale regulating course, the second conductive layer, insulating medium layer, electroluminescence layer, the 3rd conductive layer, protective layer, transparent color chromatograph; Use spraying coating process to make above structure successively, and make it cover last layer structure completely; Use multipole tapping voltage driver connecting conductive layer respectively, the first conductive layer controls gray scale, and point is separated with multiple separate control area or pixel elements, and the first conductive layer is all covered by gray scale regulating course; Second conductive layer and the 3rd conductive layer control to flash.
Stereoscopic three-dimensional object in the present invention sprays basic adsorption layer at plastics, timber, metal, stone material, paper wood, cloth material at stereoscopic three-dimensional body surface, but so also can make at the plane surface of the materials such as glass, pottery, plastic film, acrylic, fiberglass.Basis adsorption layer uses the one in epoxy, silica gel, varnish, ink, and be certainly also not limited to above material, it mainly makes smooth surface, is easy to save electric conducting material and luminescent material, and makes it evenly luminous.Gray scale regulating course sprays after using CaCu 3 Ti 4 O material to mix with tetraethoxysilane, water, ethanol.Place 24 hours after CaCu 3 Ti 4 O material, tetraethoxysilane, water, ethanol mixing spraying, form silica-based colloidal sol copper titanate calcium layer, thickness 0.001-0.01 millimeter, hot blast 40-120 degree is used to dry firmly, it can result from voltage sensitive line sexual intercourse curve, and colloid viscosity uses diluent to regulate.Certain butyl titanate, aluminium isopropoxide all can substitute tetraethoxysilane, produce similar effect.Other class adhesive of CaCu 3 Ti 4 O materials'use such as materials such as simple ring epoxy resins, ink all cannot realize above-mentioned functions.The materials such as butyl titanate, aluminium isopropoxide, tetraethoxysilane or organic zinc with the reaction of water in add micro-soda acid and can regulate pH value, accelerate colloid maturation.
The first conductive layer in the present invention, the second conductive layer use metallic conduction nano material, and they can produce good conductance, as used gold, silver, aluminium, copper; Can certainly be carbon, organic substance conducting objects, liquid conduction thing etc., its needs be determined according to production environment, basic material.3rd conductive layer uses blue-tinted transparent conducting polymer materials, for making the 3rd resistance conductive layer voltage uniform, illumination effect is even, 3rd conductive layer surface or edge preparation have invisible electric stream flow guide bar, design attitude can, according to concrete body form, electrode position and determining, can be straight line, curve, grid etc.; Invisible electric stream flow guide bar is that silver slurry or copper slurry are made 1-2 millimeter conduction tape, and uses white or color reflective material to cover conductor wire belt surface, uses normal temperature or ultra-violet curing mode.Certain small size flow guide bar also can not use, or does not add white or the covering of color reflective material.When electric current flow guide bar mainly avoids transparent conductive polymer materials to make, consumption cannot accurately control, solve the large problem of sheet resistance, certain transparent conductive polymer materials Main Function is electrically conducting transparent, it also can be replaced as nano materials such as spraying ITO liquid, ATO liquid or zinc oxide, tin oxide, Nano Silver, metal wires by other material, or vacuum metallization oxide material, although their resistance is large, complex process, basic illumination effect can be reached.
Insulating medium layer in the present invention uses insulating dielectric materials titanium dioxide and normal temperature cure binder combination.Electroluminescence layer uses electroluminescent material and normal temperature cure binder combination, and electroluminescent material is blueness, blue-green, white or their intermediate color, and electroluminescence layer is all or part of covers insulating medium layer surface.Protective layer uses the one in epoxy, silica gel, varnish, ink.Add tetraethoxysilane in normal temperature cure adhesive in the present invention, water, ethanol, ink mixture can produce and reduce voltage special result, first it be tetraethoxysilane, water, ethanol mixing slaking, it also can by adding acid, alkali accelerated reaction, form the collosol and gel that liquid phase is more, mix with ink, ink uses the dilution of alcohol, acetone, isopropyl alcohol, dimethyl formamide, toluene equal solvent again.It is not best that conventional all kinds of ink makes electroluminescent device effect as adhesive, so people often use special specialty inks, as: epoxies ink, PCV class, polyurethanes etc., their influence by voltage are larger, luminescence all needs more than 80V, and they can certainly be used in the present invention.The adhesive that in single the present invention, tetraethoxysilane, water, ethanol and ink mixture make, only add a small amount of ink or non-refuelling ink, preferably water color ink, it can expand the kind that ink is selected, and make use voltage be reduced to 36V just can luminescence.
The second conductive layer in the present invention and the 3rd conductive layer are separated and are made corresponding pattern, luminescence can realize local or all luminous, make corresponding pattern when local implementation luminescence can use the second conductive layer or the 3rd conductive layer to separate, after separation, also can realize the control break of local gray level.Multipole tapping voltage driver uses direct current work, and DC power supply is easy to carry use, and conventional AC power can certainly be used to drive, and this special purpose driver is in particular three electrode device layout manufacture.Certain the present invention also can use existing driver, but cannot realize gray scale regulatory function, and it can only make the stereo luminous effect of common 3D.Spraying uses 3D spraying printer, ink-jet spray-painting printer, gas carrier fluid spray gun body all can realize, it directly can become 3D luminescent device to three-dimensional model, device fabrication that 3D printer makes, realize stereo luminous on surface or inside, present detail analysis structure, be convenient to outside observation; Gas carrier fluid spray gun body is convenient to existing large stereo structure spraying luminous, as house, automobile, naval vessel etc.Because spraying method makes luminescent layer, insulating barrier all be thinner than silk-screen technology, so brightness is far above printing.
An electroluminescent device preparation method for 3D solid, it comprises: Non-planar substrates has stereoscopic three-dimensional object, gray scale regulating course, electroluminescence layer, the 3rd conductive layer, protective layer, the transparent color chromatograph of metal surface.When the stereoscopic three-dimensional object that Non-planar substrates has metal surface makes, metal surface can use as independent first conducting layer electrode, and when it has the second conductive layer, technological effect is with described the same above.When there is no the second conductive layer, insulating medium layer, need preparation gray scale regulating course.Gray scale regulating course sprays after using CaCu 3 Ti 4 O material to mix with tetraethoxysilane, water, ethanol.Place 24 hours after CaCu 3 Ti 4 O material, tetraethoxysilane, water, ethanol mixing spraying, form silica-based colloidal sol copper titanate calcium layer, thickness 0.001-0.01 millimeter, hot blast 40-120 degree is used to dry firmly, it can result from voltage sensitive line sexual intercourse curve, and colloid viscosity uses diluent to regulate.And use spraying coating process to make above structure successively; Use multipole tapping voltage driver connecting conductive layer respectively, the 3rd conductive layer controls luminous pattern, and point is separated with multiple separate control area or pixel elements; 3rd conductive layer uses blue-tinted transparent conducting polymer materials, and the 3rd conductive layer surface or edge preparation have invisible electric stream flow guide bar; Invisible electric stream flow guide bar is that silver slurry or copper slurry are made 1-2 millimeter conduction tape, and uses white or color reflective material to cover conductor wire belt surface, uses normal temperature or ultra-violet curing mode.This method makes to use voltage to be reduced to 36V just can be luminous, and it is safe voltage, and this can have greatly expanded electroluminescent device in place's application such as toy, domestic consumer electronics, electrical equipment, advertisements.
An electroluminescent device preparation method for 3D solid, it comprises: the stereoscopic three-dimensional object of Non-planar substrates, the first conductive layer, gray scale regulating course, electroluminescence layer, the 3rd conductive layer, transparent color protective layer; Use spraying coating process to make above structure successively, details and effect are as mentioned before; 3rd conductive layer uses blue-tinted transparent conducting polymer materials; Gray scale regulating course uses CaCu 3 Ti 4 O material, barium titanate, titanium dioxide, butyl titanate, water, ethanol, ink fully all with after mixing to spray, and wherein CaCu 3 Ti 4 O material and butyl titanate, water, ethanol make to play and significantly reduces voltage effect.The a small amount of of certain barium titanate, titanium dioxide, ink adds can improve proof voltage effect, but also makes to use voltage rise simultaneously, selects still to have effect of the present invention on a small quantity or close to effect of the present invention.Use multipole tapping voltage driver connecting conductive layer respectively, the 3rd conductive layer controls luminous pattern, and point is separated with multiple separate control area or pixel elements.This method makes to use voltage to be reduced to 36V just can be luminous, and it is safe voltage, and this can have greatly expanded electroluminescent device to use.
The adhesive material that gray scale regulating course in the present invention or insulating medium layer use also can be the one in tetraethoxysilane, aluminium isopropoxide, the sol gel precursor that itself and water, ethanol are mixed to form.But so use other sol gel precursor also to have same effect, as containing zinc.
The dedicated control circuit used in the present invention or conventional control circuit combination, multipole tapping voltage driver is connecting conductive layer respectively, and chip controls is flashed in use, makes luminescence can have multiple color, various dynamic combination.All conductive layers in the present invention all need independent extraction electrode, and simultaneously in order to not be subject to ectocine, every layer of conductive layer can draw two or more electrode, is convenient to for subsequent use, and must be separate between conductive layer.Electrode position design should be done when Integral luminous device layout, it just can be made attractive in appearance, firm, simple.
Its basic in the preparation adsorption layer in the present invention, the first conductive layer, gray scale regulating course, the second conductive layer, insulating medium layer add the ultraviolet fluorescent mark thing of different colours respectively, ultraviolet fluorescent mark thing is organic and inorganic fluorescent dye or fluorescent pigment or fluorescent powder, and they can issue out color fluorescence at ultraviolet light or blue light.Ultraviolet fluorescent mark thing can demonstrate the thickness of making layer.In the present invention, every a layer thickness all determines luminous intensity, uniformity of luminance, luminous use aging life-span uniformity, the current resistor distributing homogeneity of device, and especially large area spraying, accurately cannot control each region even thickness of often.Add different colours respectively when every layer, it under excitation source, very simply can easily tell the covering degree to a upper technique coating.
Embodiment
An electroluminescent device preparation method for 3D solid, it comprises: the stereoscopic three-dimensional object of Non-planar substrates, basic adsorption layer, the first conductive layer, gray scale regulating course, the second conductive layer, insulating medium layer, electroluminescence layer, the 3rd conductive layer, protective layer, transparent color chromatograph; Use spraying coating process to make above structure successively, and make it cover last layer structure completely; Use multipole tapping voltage driver connecting conductive layer respectively, the first conductive layer controls gray scale, and point is separated with multiple separate control area or pixel elements, and the first conductive layer is all covered by gray scale regulating course; Second conductive layer and the 3rd conductive layer control to flash.The multi-layer electrode structure that the present invention uses mainly realizes the gray-scale Control controlled by independent circuits, and certain first conductive layer is disconnected, and also can realize the luminescence of routine techniques.
Stereoscopic three-dimensional object in the present invention sprays basic adsorption layer at plastics, timber, metal, stone material, paper wood, cloth material at stereoscopic three-dimensional body surface, but so also can make at the plane surface of the materials such as glass, pottery, plastic film, acrylic, fiberglass.The present invention especially makes at gypsum surface of base has with low cost, the unique simplicity advantage of moulding.Basis adsorption layer uses the one in epoxy, silica gel, varnish, ink, and be certainly also not limited to above material, it mainly makes smooth surface, is easy to save electric conducting material and luminescent material, and makes it evenly luminous; Insulation safety effect can also be played on the metal surface.
Gray scale regulating course sprays after using CaCu 3 Ti 4 O material to mix with tetraethoxysilane, water, ethanol.Place 24 hours after CaCu 3 Ti 4 O material, tetraethoxysilane, water, ethanol mixing spraying, temperature controls at 30-60 degree, form silica-based colloidal sol copper titanate calcium layer, thickness 0.001-0.01 millimeter, hot blast 40-120 degree is used to dry firmly, colloid viscosity uses diluent to regulate, and alcohols material commonly used by diluent.Certain butyl titanate, aluminium isopropoxide all can substitute tetraethoxysilane, produce similar effect.CaCu 3 Ti 4 O material is selected to be because it has very large adjustable dielectric constant properties.Other class adhesive of CaCu 3 Ti 4 O materials'use such as materials such as simple ring epoxy resins, ink all cannot realize above-mentioned functions, and they can only be used for improving brightness, and are under single electrode state.The materials such as butyl titanate, aluminium isopropoxide, tetraethoxysilane or organic zinc with the reaction of water in add micro-soda acid and can regulate pH value, accelerate colloid maturation.Gray scale regulating course also can add a small amount of ink when manufacturing, and for improving adhesion, but its consumption should below 5%.
The first conductive layer in the present invention, the second conductive layer use metallic conduction nano material, and they can produce good conductance, as used gold, silver, aluminium, copper; Can certainly be carbon, organic substance conducting objects, liquid conduction thing etc., its needs be determined according to production environment, basic material, and their majorities are all conventional commercially available prod.That wherein commonly uses has the materials such as aluminium, silver, copper, carbon, silver-colored copper-clad.Add carbon fluorescence quantum material in first conductive layer, the second conductive layer, it can strengthen fluorescent characteristic, does not affect conduction.3rd conductive layer uses blue-tinted transparent conducting polymer materials, and for making the 3rd resistance conductive layer voltage uniform, illumination effect is even, and the 3rd conductive layer surface or edge preparation have invisible electric stream flow guide bar; Invisible electric stream flow guide bar is that silver slurry or copper slurry are made 1-2 millimeter conduction tape, and uses white or color reflective material to cover conductor wire belt surface, uses normal temperature or ultra-violet curing mode.Certain small size flow guide bar also can not use, or does not add white or the covering of color reflective material.When electric current flow guide bar mainly avoids transparent conductive polymer materials to make, consumption cannot accurately control, solve the large problem of sheet resistance, certain transparent conductive polymer materials Main Function is electrically conducting transparent, it also can be replaced as nano materials such as spraying ITO liquid, ATO liquid or zinc oxide, tin oxide, Nano Silvers by other material, or vacuum metallization oxide material, although their resistance is large, complex process, but can reach basic illumination effect, these materials, technique are ripe market known technologies.
Insulating medium layer in the present invention uses insulating dielectric materials titanium dioxide and normal temperature cure binder combination, and insulating dielectric materials also can be barium titanate etc., and these are all common products, do not need special processing.Dielectric layer thickness 3-10 micron.
Electroluminescence layer uses electroluminescent material and normal temperature cure binder combination, and electroluminescent material is blueness, blue-green, white or their intermediate color, and electroluminescence layer is all or part of covers insulating medium layer surface.Electroluminescent material can use market sale trade mark product as GG44, D502C, D502B, D417S, GG25 etc.Electroluminescence layer thickness 10-50 micron.
Protective layer uses the one in epoxy, silica gel, varnish, ink; protective layer mainly insulate external infringement luminescent layer and conductive layer; as used silica gel, fluoro-containing coating can intercept moisture and ultraviolet damage, improving device useful life, being used as floating light-emitting indicating device even under water.Protective layer thickness 0.1-5 millimeter, mainly according to application scenario, conditional decision.Protective layer also directly can add color material, realizes colorful light-emitting.
Add tetraethoxysilane in normal temperature cure adhesive in the present invention, water, ethanol, ink mixture can produce and reduce voltage special result, first it be tetraethoxysilane, water, ethanol mixing slaking, it also can by adding acid, alkali accelerated reaction, form the collosol and gel that liquid phase is more, mix with ink again, ink is no more than 20% usually, and fewer effect is better, but can lower its adhesive force simultaneously.Ink uses the dilution of alcohol, acetone, isopropyl alcohol, dimethyl formamide, toluene equal solvent.It is not best that conventional all kinds of ink makes electroluminescent device effect as adhesive, so people often use special specialty inks, as: epoxies ink, PCV class, polyurethanes etc., their influence by voltage are larger, luminescence all needs more than 80V, and they can certainly be used in the present invention.The adhesive that in single the present invention, tetraethoxysilane, water, ethanol and ink mixture make, only add a small amount of ink or non-refuelling ink, preferably water color ink, it can expand the kind that ink is selected, and make use voltage be reduced to 36V just can luminescence.
The second conductive layer in the present invention and the 3rd conductive layer are separated and are made corresponding pattern, and luminescence can realize local or all luminous, and use modes such as blocking spraying, plate-making carving are empty, stickup barrier bed to realize, this all often uses in existing spraying coating process.The separation of electrode can use gap bridge technology with being connected, and use megohmite insulant to completely cut off last layer, then at insulant surface transition electrode, these methods uses in thin film circuit switch, the advertisement of electroluminescence sheet.Make corresponding pattern when local implementation luminescence can use the second conductive layer or the 3rd conductive layer to separate, after separation, also can realize the control break of local gray level.Multipole tapping voltage driver uses direct current work, and DC power supply is easy to carry use, and conventional AC power can certainly be used to drive, and this special purpose driver is in particular three electrode device layout manufacture.Certain the present invention also can use existing driver, but cannot realize gray scale regulatory function, and it can only make the stereo luminous effect of common 3D.
In the present invention, spraying uses 3D spraying printer, ink-jet spray-painting printer, gas carrier fluid spray gun body all can realize, it directly can become 3D luminescent device to three-dimensional model, device fabrication that 3D printer makes, realize stereo luminous on surface or inside, present detail analysis structure, be convenient to outside observation, especially wedge angle, curved surface, spherical making realize luminous, and existing printing, coating technique cannot realize.Gas carrier fluid spray gun body is convenient to existing large stereo structure spraying luminous, and as house, automobile, naval vessel etc., manufacture technology is not subject to environmental limitations, as manufactured on huge gas model surface.Certain the present invention also can make existing billboard, also can use existing transparent plastic conducting film.
The electroluminescent device preparation method of a kind of 3D solid of the present invention, can be fabricated directly in metal surface, and metal directly uses as electrode, and cubic metal characters or patterns so that individual devices processing, can be applicable to all kinds of instrument, another accessory.It comprises: Non-planar substrates has stereoscopic three-dimensional object, gray scale regulating course, electroluminescence layer, the 3rd conductive layer, protective layer, the transparent color chromatograph of metal surface.When the stereoscopic three-dimensional object that Non-planar substrates has metal surface makes, metal surface can use as independent first conducting layer electrode, and when it has the second conductive layer, technological effect is with described the same above.When there is no the second conductive layer, insulating medium layer, need preparation gray scale regulating course.Gray scale regulating course sprays after using CaCu 3 Ti 4 O material to mix with tetraethoxysilane, water, ethanol.Place 24 hours after CaCu 3 Ti 4 O material, tetraethoxysilane, water, ethanol mixing spraying, form silica-based colloidal sol copper titanate calcium layer, thickness 0.001-0.01 millimeter, hot blast 40-120 degree is used to dry firmly, it can result from voltage sensitive line sexual intercourse curve, and colloid viscosity uses diluent to regulate.And use spraying coating process to make above structure successively; Use multipole tapping voltage driver connecting conductive layer respectively, the 3rd conductive layer controls luminous pattern, and point is separated with multiple separate control area or pixel elements; 3rd conductive layer uses blue-tinted transparent conducting polymer materials, and the 3rd conductive layer surface or edge preparation have invisible electric stream flow guide bar; Invisible electric stream flow guide bar is that silver slurry or copper slurry are made 1-2 millimeter conduction tape, and uses white or color reflective material to cover conductor wire belt surface, uses normal temperature or ultra-violet curing mode.This method makes to use voltage to be reduced to 36V just can be luminous, and it is safe voltage, and this can have greatly expanded electroluminescent device in place's application such as toy, domestic consumer electronics, electrical equipment, advertisements.
An electroluminescent device preparation method for 3D solid, it comprises: the stereoscopic three-dimensional object of Non-planar substrates, the first conductive layer, gray scale regulating course, electroluminescence layer, the 3rd conductive layer, transparent color protective layer; Use spraying coating process to make above structure successively, details and effect are as mentioned before; 3rd conductive layer uses blue-tinted transparent conducting polymer materials; Gray scale regulating course uses CaCu 3 Ti 4 O material, barium titanate, titanium dioxide, and fully all with after mixing spray with butyl titanate, water, ethanol, ink, wherein CaCu 3 Ti 4 O material and butyl titanate, water, ethanol make to play and significantly reduce voltage effect, it just can be luminous at 36V, when at 110V, luminous intensity can reach 1 times of silk-screen technology under 400 hertz.The a small amount of of certain barium titanate, titanium dioxide, ink adds can improve proof voltage effect, but also makes to use voltage rise simultaneously, selects still to have effect of the present invention on a small quantity or close to effect of the present invention.The gray scale regulating course of this method, electroluminescence layer also can directly use modification ink to spray.Use multipole tapping voltage driver connecting conductive layer respectively, the 3rd conductive layer controls luminous pattern, and point is separated with multiple separate control area or pixel elements.This method makes to use voltage to be reduced to 36V just can be luminous, and it is safe voltage, and this can have greatly expanded electroluminescent device to use.The conventional electroluminescent structure devices that this method of the present invention can directly make, its owing to employing 3D spraying coating process mode, the chemical material of gray scale regulating course makes proportioning especially, technology such as fluorescence method mark thicknesses processes etc. achieve luminous evenly, large area, multi-angle be stereo luminous.As the present invention can be produced on glass, plastic bottle ball inside, be hedged off from the outer world completely after sealing, by built-in power solar energy equipment power supply control, the life-span can be made to reach more than 10 years, for the water surface, traffic, inferior place huge large area safety light-emitting mark or advertisement; Can certainly be simple and easy for Interim use.
The adhesive material that gray scale regulating course in the present invention or insulating medium layer use also can be the one in tetraethoxysilane, aluminium isopropoxide, the sol gel precursor that itself and water, ethanol are mixed to form.But so use other sol gel precursor also to have same effect, as containing zinc.In the present invention, operation is all sprayings, and spraying coating process requires strict to the liquid viscosity of spraying, the especially use of diluent, sol gel precursor, when not having complete film forming, is sprayed on surface, is passing through slaking film forming of heating, it both can meet diluted, can form firm film again.Spraying can conservation, difform three-dimensional object all sites more importantly can be made evenly coated, especially deep trouth and boss.The present invention is not limited to spraying method, and use infusion method to get rid of film through the later stage and also can make and reach effect of the present invention, just complex process wastes raw material, and the uncontrollable non-uniform light of luminous thickness.
Its basic in the preparation adsorption layer in the present invention, first conductive layer, gray scale regulating course, second conductive layer, insulating medium layer adds the ultraviolet fluorescent mark thing that weight ratio is the different colours of 0.01%-5% respectively, ultraviolet fluorescent mark thing is organic, inorganic fluorescent dye or fluorescent pigment or fluorescent powder, they can issue out color fluorescence at ultraviolet light or blue light, as basic adsorption layer uses red inorganic fluorescent pigment, first conductive layer uses green organic fluorescent dye, gray scale regulating course uses blue organic fluorescent pigment, second conductive layer uses yellow organic fluorescent dye, insulating medium layer uses blue organic fluorescent dye.Their rule is the fluorescence labeling that adjacent two layers will use different colours, like this when mutually covering, if any omission or uneven or too thick, can directly differentiate according to appearance color relation, certain ultraviolet fluorescent mark thing also can use general color material to replace, but microcosmic observation is implemented in its inconvenience, also cannot realize using automatic fluorescence detector test monitoring.In the present invention, every a layer thickness all determines luminous intensity, uniformity of luminance, luminous use aging life-span uniformity, the current resistor distributing homogeneity of device, and especially large area spraying, accurately cannot control each region even thickness of often.Add different colours respectively when every layer, it under excitation source, very simply can easily tell the covering degree to a upper technique coating.Ultraviolet fluorescent mark thing can demonstrate the thickness of making layer, and ultraviolet fluorescent mark thing material is just for manufacturing process, and it can dry rear fluorescent characteristic disappear, as used organic fluorescent material again.Add fluorescent material in conductive layer can also avoid omitting during spraying forming short circuit.
the invention has the advantages that
1) AC and DC of the present invention all can direct luminous use work, as used AC light-emitting only to need 36V just can be luminous, lower than prior art, avoids prior art to need the work of 90V-150V high interchange pressure.But right the present invention also may be used for high voltagehigh frequency, and it has better brightness.May be used for toy, household electrical appliances, mobile phone, electric wire, light fixture, showpiece displaying, clothes, shoes and hats etc.
2) the present invention is on the make by using fluorescence radiation method, and Simple identification goes out every layer thickness in element manufacturing, significantly enhances productivity and rate of finished products, and can not affect use.Its technique is simply applicable to overlarge area manufacture, and spraying makes material save 30-50%.
3) sandwich construction of the present invention can be applicable in matrix display device, regulate through controller, achieve high-brightness electroluminescent with gray matrix display effect, may be used for terminal image information display, change the display that prior art can only be used for pattern, and be made into stereo display.As being used in flexiplast display, be set to red bluish-green drive to glow color control, realize colour television display effect, be applicable to overlarge area to use, its weight, installation, cost are lower than existing LED, 1-10 square metre of stereo display can be produced, as being produced on overpass leg surface, house facade.
4) spraying coating process that uses of the present invention, is also applicable to 3D and sprays printer or ink-jet printer or gas carrier fluid spray gun body, be particularly useful for the effect plays of 3D printer product.The three-decker electrode that the present invention uses, utilizes CaCu 3 Ti 4 O material to realize adjustable gray scale luminous.Spraying coating process is utilized to realize the manufacture of stereoscopic three-dimensional luminescent device, it can be produced on arbitrary objects surface, form stereo luminous effect, for sample display, secure ID, building, car and boat body, furniture, dress advertisements, it can be produced on metal, timber, plastics, dry goods, stone material.Can spend to 200 degree of work in ambient temperature-60.The present invention simultaneously can be manufactured on aircraft, naval vessel, vehicle, clothes integral surface, or have various three-dimensional angled surfaces or inside, launch dusty blue sky or the adjustable gray scale luminescence of marine background, for reducing object edge and surface reflection daytime, interference vision is to the judgement of object gray scale and reverberation, generation reduced volume on daytime reaches stealthy effect, especially to small-sized low flyer; The coupling of certain color with change also may be used for desert, jungle vision stealthy.
embodiment 1.
A kind of spheroid electroluminescent device preparation of 3D solid, selects plastic hollow spheroid as basketball, football, and surface foundation adsorption layer uses the red epoxy of modification to spray 0.01 millimeters thick, drying.
Use silver slurry to do the first conductive layer, add organic fluorescence green dye 0.1% by weight, be sprayed on basic adsorption layer surperficial, dry.After gray scale regulating course uses CaCu 3 Ti 4 O material to mix with tetraethoxysilane, water, ethanol, place 24 hours, add 1% ink by the weight ratio of above material, the fluorescent orange dye of 0.07%, be sprayed on the first conductive layer surface, under uviol lamp, observe covering completely, drying.
Second conductive layer uses silver slurry, adds the blue dyestuff 0.5% of organic fluorescence by weight, is sprayed on gray scale regulating course surperficial, dry.Insulating medium layer uses titanium dioxide and epoxy adhesive agent composition, then adds the inorganic red fluorescent material of weight 1%, is sprayed on the second conductive layer surface, drying.Electroluminescence layer uses D502 blue-green electroluminescent material and epoxy adhesive agent composition, is sprayed on insulating medium layer surface, drying.Epoxy adhesive agent composition adds tetraethoxysilane, water, ethanol, ink mixture.
3rd conductive layer uses polymeric transparent electric conducting material, is sprayed on electroluminescence layer surface, drying.Protective layer uses epoxy resin.Transparent color chromatograph uses PVC coating to add red fluorescence transparent material.
embodiment 2.
An electroluminescence drinking cup for 3D solid, uses 3D printer to make colored plastic water tumbler with handles.Basis adsorption layer uses epoxy preparation.Select copper slurry to do the first conductive layer, add organic fluorescence green dye 0.1% by weight, be sprayed on basic adsorption layer surperficial, dry.Gray scale regulating course uses CaCu 3 Ti 4 O material to add barium titanate composite material, then is made into gray scale regulating course with butyl titanate, water, ethanol, ink Homogeneous phase mixing, and ink uses polyurethane adhesive material, adds red fluorescence dyestuff spraying film forming in them.
Electroluminescence layer uses D512C luminescent material, is made into luminescent layer equally again with butyl titanate, water, ethanol, ink Homogeneous phase mixing.3rd conductive layer, transparent color protective layer; Spraying coating process is used to make above structure successively; 3rd conductive layer uses transparent conductive polymer materials; Adhesive material is butyl titanate, water, ethanol, ink, sprays after their full and uniform mixing; Use multipole tapping voltage driver connecting conductive layer respectively, the 3rd conductive layer controls luminous pattern, and point is separated with multiple separate control area or pixel elements.3rd conductive layer uses polymeric transparent electric conducting material, is sprayed on electroluminescence layer surface, drying.Protective layer uses waterproof colorless transparent silicone rubber.Transparent color chromatograph uses PVC coating to add blue-fluorescence transparency dye material, forms blue coloured electroluminous cup.
After having done to illustrate for the good execution mode of the present invention above, it should be understood that to one skilled in the art, when without departing from the spirit and scope of the present invention, any changes and improvements made for the present invention all within the scope of the invention.
Claims (10)
1. an electroluminescent device preparation method for 3D solid, it comprises: the stereoscopic three-dimensional object of Non-planar substrates, basic adsorption layer, the first conductive layer, gray scale regulating course, the second conductive layer, insulating medium layer, electroluminescence layer, the 3rd conductive layer, protective layer, transparent color chromatograph; Spraying coating process is used to make above structure successively; Use multipole tapping voltage driver connecting conductive layer respectively, the first conductive layer controls gray scale, and point is separated with multiple separate control area or pixel elements, and the first conductive layer is all covered by gray scale regulating course; Second conductive layer and the 3rd conductive layer control to flash.
2. the electroluminescent device preparation method of a kind of 3D solid as claimed in claim 1, stereoscopic three-dimensional object is plastics, timber, metal, stone material, paper wood, cloth material spray basic adsorption layer at stereoscopic three-dimensional body surface, and basic adsorption layer uses the one in epoxy, silica gel, varnish, ink; Gray scale regulating course sprays after using CaCu 3 Ti 4 O material to mix with tetraethoxysilane, water, ethanol, thickness 0.001-0.01 millimeter.
3. the electroluminescent device preparation method of a kind of 3D solid as claimed in claim 1, the first conductive layer, the second conductive layer use metallic conduction nano material; 3rd conductive layer uses blue-tinted transparent conducting polymer materials, and the 3rd conductive layer surface or edge preparation have invisible electric stream flow guide bar; Invisible electric stream flow guide bar is that silver slurry or copper slurry are made 1-2 millimeter conduction tape, and uses white or color reflective material to cover conductor wire belt surface, uses normal temperature or ultra-violet curing mode; Add carbon fluorescence quantum material in first conductive layer, the second conductive layer, realize conductive luminous.
4. the electroluminescent device preparation method of a kind of 3D solid as claimed in claim 1, insulating medium layer uses insulating dielectric materials titanium dioxide and normal temperature cure binder combination; Electroluminescence layer uses electroluminescent material and normal temperature cure binder combination, and electroluminescent material is blueness, blue-green, white or their intermediate color, and electroluminescence layer is all or part of covers insulating medium layer surface; Protective layer uses the one in epoxy, silica gel, varnish, ink.
5. the electroluminescent device preparation method of a kind of 3D solid as claimed in claim 1, the second conductive layer and the 3rd conductive layer are separated and are made corresponding pattern, and multipole tapping voltage driver uses direct current work; Spraying uses 3D to spray printer or ink-jet spray-painting printer or gas carrier fluid spray gun body.
6. the electroluminescent device preparation method of a kind of 3D solid as claimed in claim 1, its basic in the preparation adsorption layer, the first conductive layer, gray scale regulating course, the second conductive layer, insulating medium layer add the ultraviolet fluorescent mark thing of different colours respectively, ultraviolet fluorescent mark thing is organic and inorganic fluorescent dye or fluorescent pigment or fluorescent powder, and they issue out color fluorescence at ultraviolet light or blue light.
7. an electroluminescent device preparation method for 3D solid, it comprises: Non-planar substrates has stereoscopic three-dimensional object, gray scale regulating course, electroluminescence layer, the 3rd conductive layer, protective layer, the transparent color chromatograph of electrically-conducting metal surface; Spraying coating process is used to make above structure successively; Wherein gray scale regulating course adds the ultraviolet fluorescent mark thing of different colours, and ultraviolet fluorescent mark thing is organic and inorganic fluorescent dye or fluorescent pigment or fluorescent powder, and they can issue out color fluorescence at ultraviolet light or blue light; Use multipole tapping voltage driver connecting conductive layer respectively, the 3rd conductive layer controls luminous pattern, and point is separated with multiple separate control area or pixel elements; 3rd conductive layer uses transparent conductive polymer materials, and the 3rd conductive layer surface or edge preparation have invisible electric stream flow guide bar; Invisible electric stream flow guide bar is that silver slurry or copper slurry are made 1-2 millimeter conduction tape, and uses white or color reflective material to cover conductor wire belt surface, uses normal temperature or ultra-violet curing mode.
8. an electroluminescent device preparation method for 3D solid, it comprises: the stereoscopic three-dimensional object of Non-planar substrates, the first conductive layer, gray scale regulating course, electroluminescence layer, the 3rd conductive layer, transparent color protective layer; Spraying coating process is used to make above structure successively; 3rd conductive layer uses transparent conductive polymer materials; Gray scale regulating course uses CaCu 3 Ti 4 O material, barium titanate, titanium dioxide composite material, then is made into gray scale regulating course with adhesive material Homogeneous phase mixing, and adhesive material is butyl titanate, water, ethanol, ink, sprays after their full and uniform mixing; Use multipole tapping voltage driver connecting conductive layer respectively, the 3rd conductive layer controls luminous pattern, and point is separated with multiple separate control area or pixel elements.
9. the electroluminescent device preparation method of a kind of 3D solid according to claim 7, the adhesive material that gray scale regulating course or insulating medium layer use is the one in tetraethoxysilane, aluminium isopropoxide, the sol gel precursor that itself and water, ethanol are mixed to form.
10. the electroluminescent device preparation method of a kind of 3D solid according to claim 7, first conductive layer, gray scale regulating course add the ultraviolet fluorescent mark thing of different colours respectively, ultraviolet fluorescent mark thing is organic and inorganic fluorescent dye or fluorescent pigment or fluorescent powder, issues out color fluorescence at ultraviolet light or blue light.
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