CN101225942A - Wavelength transformational structure as well as fabrication and usage thereof - Google Patents

Wavelength transformational structure as well as fabrication and usage thereof Download PDF

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Publication number
CN101225942A
CN101225942A CNA2007101413529A CN200710141352A CN101225942A CN 101225942 A CN101225942 A CN 101225942A CN A2007101413529 A CNA2007101413529 A CN A2007101413529A CN 200710141352 A CN200710141352 A CN 200710141352A CN 101225942 A CN101225942 A CN 101225942A
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wavelength
transformational structure
phosphor body
body powder
wavelength transformational
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Inventor
张文吉
林瑜平
王富田
陈致源
陈定和
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Kismart Corp
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Kismart Corp
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Abstract

The invention discloses a wavelength conversion structure, comprising a substrate and a wavelength conversion layer which is positioned on the substrate and comprises (a) a fluorescence powder which can be energized by UVc; and (b) a UVc-resistant adhesive agent, wherein, the thickness of the wavelength conversion coating is 2 to 10 times of the average grain size of the fluorescence powder and the content of the fluorescence powder in the wavelength conversion coating can satisfy at least one of the following requirements: (i) the volume percent of the fluorescence powder in the wavelength conversion coating is 30% to 85% (based on the overall volume of the fluorescence powder and the adhesive agents); and (ii) the weight ratio of the fluorescence powder and the adhesive agents is 1:1 to 20:1. The wavelength conversion coating can effectively convert UVc to visible light, thus, providing large-area light source of visible light.

Description

Wavelength transformational structure and manufacturing thereof and purposes
Technical field
The invention relates to a Wavelength transformational structure, especially containing about one can be in order to ultraviolet light, especially the wavelength ultraviolet light (being UVc) that is not more than 280nm is converted to the structure of wavelength of visible light conversion coating, this coating can cooperate the UVc light source to use under the situation that air exists, and conversion UVc wavelength is to visible wavelength.This Wavelength transformational structure making step is simple, thereby can simple and easy means provide a large-area planar light source.The present invention is in addition about being applied to this Wavelength transformational structure in illuminating module and the module backlight.
Background technology
The planar light source of big light-emitting area is the development trend of present light source, and the planar light source of especially big light-emitting area becomes more important for the module backlight of big panel liquid crystal display.In the conventional lighting sources, utilize the energy/wavelength conversion regime that the mode of visible wavelength is provided at present, comprise cold-cathode tube technology (cold cathodefluorescent lamp; CCFL), outer electrode fluorescent tube technology (external electrode fluorescentlamp; EEFL), led technology (light emitting diode; LED), carbon nanotube technology (carbon nanotube; CNT), planar light source technology (Flat Fluorescent Lamp; FFL) and Organic Light Emitting Diode technology (organic light emitting display; OLED) etc.
Above-mentioned various by energy/wavelength conversion with the means that visible wavelength is provided in, CCFL applies one deck phosphor body at the glass tube inwall, and at inner small amounts of inert gas and the mercury vapour enclosed of fluorescent tube, mercury vapour produces ultraviolet light through electron bombardment in the electrode discharge process, ultraviolet light is converted to visible light via the phosphor body on the lamp tube wall and disengages, so that visible wavelength to be provided.CCFL has manufacturing technology maturation, the cost advantage such as low of comparing with aforementioned techniques, and just being subject to the fluorescent coating needs place same vacuum fluorescent tube with light emitting source, is difficult for maximizing, is difficult to the restriction that provides the large tracts of land wavelength to change so have.In addition, existing CCFL is attempting with the fluorescent tube lengthening shortcomings such as yield is low, cost significantly improves are still arranged so that big light-emitting area to be provided.
The maximum difference of EEFL and CCFL is electrode is placed the fluorescent tube outside, so can utilize same converter to drive many fluorescent lamps, therefore, the cost of converter is lower, utilization of power efficient is higher.So, EEFL still has the restriction in the application, for example when the luminance shortage of EEFL lamp source, if desire by improving light tube electric voltage to increase electric current, when promoting output brightness, then can cause the converter volume sharply to rise the radiating effect variation.In addition, as CCFL, EEFL is the same also to have the shortcoming that big light-emitting area can't be provided.
LED is one by the made light-emitting component of semi-conducting material, with III-V family chemical element (as: gallium phosphide (GaP), GaAs (GaAs) etc.) is material, by compound semiconductor is applied electric current, via electronics with combining of hole the form with light disengage, reach illumination effect.LED has that volume is little, the life-span is long, driving voltage is low, and advantage such as reaction rate is fast.Yet LED still has problems such as colour mixture problem, cost of manufacture height, all once low, poor heat radiation and power consumption efficiency be low on making.
CNT utilizes high electric field that electronics is disengaged from the tip, utilize high pressure accelerating impact fluorescent screen again and convert the optical wavelength energy to, though advantages such as this technology tool power saving, no mercury and low temperature, its processing procedure are complicated, cost is high, brightness constancy is not good and the uniformity is not good.In addition, the maximization manufacturing technology of CNT is still in development.
FFL converts the acceptable visible wavelength of human eye to after being the colored phosphor body powder of ultraviolet excitation that is produced when utilizing noble gas discharge again.Though that FFL has is not mercurous, the life-span is long with simplify advantage such as optical design, in present stage then still have the processing procedure difficulty, cost of manufacture is higher, efficient is not good and shortcoming such as heat dissipation problem.
As for OLED, then be utilize an applying bias with drive hole/electronics each since just/negative pole injects, thereafter under electric field action, make the hole move in opposite directions with electronics, combine again and disengage the optical wavelength energy.Though advantages such as OLED tool thin thickness, brightness height, operating temperature range are wide, low power consumption and low driving voltage, in present stage then still have the difficulty that maximizes, shortcoming such as cost of manufacture is higher, efficient is not enough and service life is short.
As shown in the above description, in existing visible light source, not that manufacturing technology is not attained maturation (as: LED, CNT, OLED and FFL), have the shortcoming that to maximize (as CCFL and EEFL) of making due to limiting in the sky exactly, all can't satisfy industry provides the conversion of large tracts of land wavelength with simple and easy, low-cost means demand because of elder generation.
The research and development achievement that the present invention promptly does at the demand, by simple and easy means, can be in conjunction with existing technology, and large-area Wavelength conversion method is provided.
Summary of the invention
In the present invention, so-called " UVc " is meant that wavelength is not more than the ultraviolet light of 280nm, and for example 200 to 280nm light, particularly 250 to 260nm light refer in particular to the light of 253.7nm.So-called " UV B" be meant the light of wavelength, so-called " UV between 280～320nm A" be meant the light of wavelength between 320～400nm.So-called " giant molecule " (Macromer) is meant that molecular weight greater than 1,000 molecule, comprises oligomer (Oligomer) and macromolecule (Polymer).What is called " can be subjected to ultraviolet light (or UVc, UV AOr UV B) phosphor body that excites " be meant and accepting ultraviolet light (or UV C, UV A, or UV B) when shining, can absorb ultraviolet light (or UV C, UV AOr UV B) and emit the material of visible light.
A purpose of the present invention is to provide a kind of Wavelength transformational structure, and it comprises:
One base material; And
One wavelength conversion coating is positioned on this base material and comprises:
(a) a phosphor body powder that excited by UVc; And
(b) an anti-UVc adhesive agent,
Wherein the thickness of this wavelength conversion coating is 2 to 10 times of phosphor body powder average grain diameter, and this phosphor body powder meets following at least one condition at the content of this wavelength conversion coating:
(i) percent by volume of phosphor body powder in the wavelength conversion coating is 30% to 85% (cumulative volume with phosphor body powder and adhesive agent is a benchmark); And
(ii) the weight ratio of phosphor body powder and adhesive agent is 1: 1 to 20: 1.
The Wavelength transformational structure of the present invention UVc light source of can arranging in pairs or groups provides large-area visible light planar light source.This visible light source also can apply to provide large-area display floater with simple and easy means in the module backlight.
Another object of the present invention is to provide a kind of method of making Wavelength transformational structure, and it comprises:
One base material is provided;
Apply a slurry at this substrate surface, it is to place a storage tank and comprise:
(a) a phosphor body powder that excited by UVc;
(b) an anti-UVc adhesive agent; And
(c) organic solvent,
Wherein, the weight ratio of this phosphor body powder and this adhesive agent is 1: 1 to 20: 1; And
The dry base material that is somebody's turn to do through applying.
After consulting the embodiment of describing subsequently, the persond having ordinary knowledge in the technical field of the present invention works as can understand essence spirit of the present invention and other goals of the invention easily, and the technology used in the present invention means and preferable enforcement aspect.
Description of drawings
Figure 1A shows the schematic diagram of an enforcement aspect of this Wavelength transformational structure;
Figure 1B shows this Wavelength transformational structure, and another implements the schematic diagram of aspect, and wherein, contained base material is a composite bed;
Fig. 1 C shows the schematic diagram of the another enforcement aspect of this Wavelength transformational structure, and wherein, contained base material is that an optics is promoted structure;
The illuminating module of Fig. 2 A display application Wavelength transformational structure;
Fig. 2 B shows the schematic diagram of the light source holder in the framework that can be used for illuminating module of the present invention;
The mixed light aspect of Fig. 3 A and Fig. 3 B display application illuminating module of the present invention;
Fig. 4 A to Fig. 4 C shows that one has the illuminating module enforcement aspect that ultraviolet wavelength blocks coating;
The framework madial wall that Fig. 5 is shown in illuminating module is provided with the schematic diagram of a protective layer;
Fig. 6 shows that one uses the side-light type module enforcement backlight aspect schematic diagram of Wavelength transformational structure;
Fig. 7 shows that one uses the schematic diagram of the down straight aphototropism mode set enforcement aspect of Wavelength transformational structure;
Fig. 8 shows the schematic diagram of a traditional down straight aphototropism mode set;
Fig. 9 A to Figure 12 C shows the module enforcement aspect schematic diagram backlight with various fixture;
Figure 13 A shows the original light source spectrum of the UVc module of example 1;
Figure 13 B shows the spectrum of the UVc module of Figure 13 A via light source that this Wavelength transformational structure sends;
Figure 14 shows that embodiment 2 gained samples change in the color coordinate and the brightness of UVc irradiation after 3400 hours;
Figure 15 A shows that embodiment 6 gained are not provided with the spectrogram that ultraviolet wavelength blocks coating;
Figure 15 B shows that embodiment 6 gained are provided with the spectrogram that ultraviolet wavelength blocks coating;
Figure 16 A shows that embodiment 7 gained are not provided with the spectrogram that ultraviolet wavelength blocks coating; And
Figure 16 B shows that embodiment 7 gained are provided with the spectrogram that ultraviolet wavelength blocks coating.
The main element symbol description
20,30,32,40: illuminating module
60,70,80,90,100,110,120: module backlight
61,81,91,101,101a, 101b, 111,111a, 111b, 121,121a, 201,301,321,401,501,701: framework
63,83,95,105,115,125,203,303,403,503,703,3231,3233: light source
65,93,102,103,104,106,113,123,205,305,325,405,705: Wavelength transformational structure
85,707: blooming piece
2075,87: support column
505: protective layer
671: diffusion barrier
673: prismatic lens
675: LGP
679: reflector plate
911,1011,1111,1211,2011,4011: opening
307,931,1023,1031,1043,1063,1131,1231,2051,3051,3251,4051,7051: the wavelength conversion coating
933,1021,1033,1041,1061,1133,1233,2053,3053,3253,4053,7053: base material
971,975: the first frameworks
973,977: the second frameworks
979,981,983,1271: framework
1045: transparent film layer
1047: transparent sheet
1049: the macromolecule pressure-sensing glue
1071,1075,1079,1081,1171,1175,1177,1275: the first elements
1073,1077,1173: the second elements
1273: elastic component
2013,3013,3213,4013: confined space
4055: ultraviolet wavelength blocks coating
207: the light source holder
2071: backboard
2073: lamp tube securing holder
The specific embodiment
For the planar light source of a big light-emitting area is provided, the inventor is converted into visible light by a phosphor body with ultraviolet light, and the slurry that particularly will contain the phosphor body powder is directly coated formation one Wavelength transformational structure on the planar substrate.So can make ultraviolet light, especially the UVc wave band is converted into visible light via this Wavelength transformational structure.That is, make ultraviolet excitation phosphor body powder, and produce visible light.This Wavelength transformational structure can be promoted the luminous uniformity, and required light-emitting area can optionally be provided.
As described above, CCFL has advantages such as manufacturing technology maturation, cost are lower, and just being subject to the fluorescent coating needs place same vacuum fluorescent tube with light emitting source, is difficult for maximizing, is difficult to the restriction that provides the large tracts of land wavelength to change so have.Specifically, CCFL coats glass tube inside with phosphor body pulp solution (being a composition components that is combined by phosphor powder, organic matter, inorganic matter and solvent), again organic matter composition sintering in said composition removed, form a fluorescent layer at the glass tube inwall thereafter.Pour into mercury vapour again in glass tube, sealed glass tubes excites mercury vapour and disengages UVc in the electrode mode afterwards, and this UVc is converted into visible light via the fluorescent layer on the glass wall.
In above-mentioned traditional C CFL method for making, the coating of this fluorescent layer is to carry out in upright mode, utilize siphon principle earlier the phosphor body slurry to be drawn to upright fluorescent tube upper end, relending by gravity makes it from top to bottom be coated on tube inner wall, thereafter sintering is removed the organic components in the coating, forms the fluorescent layer of being desired.Aforementioned coating method can cause uneven thickness one phenomenon at the fluorescent tube upper and lower side because of gravitational difference, and this non-uniform phenomenon is especially serious in the high situation of fluorescent tube size requirements (that is the situation that, needs longer fluorescent tube).
In addition, the structure of existing CCFL is that phosphor body is sintered on the glass tube walls, but still is difficult to avoid ultraviolet light to leak from the phosphor body gap of fluorescent layer.With existing LCD Technology is example, and the ultraviolet light of CCFL leaks the characteristic that can influence optical materials such as diffuser plate, brightness enhancement film, causes the deterioration of these materials.Therefore most materials all need be through the processing of ultraviolet light coating, to promote its service life.
At the problems referred to above, the inventor attempts the phosphor body slurry is directly coated on indivedual base materials, but not glass tube inwall, the mode of separating with fluorescent layer with fluorescent tube provides visible light source, exempt the problem of CCFL fluorescent layer variable thickness, promote its luminous uniformity, and the light-emitting area of being desired can optionally be provided.And find after deliberation, use by special solvent and adhesive agent, and the control of adhesive agent and phosphor body content of powder, formed combination pulp can form one and ultraviolet light effectively can be converted to the wavelength of visible light conversion coating under the situation that does not need sintering process on base material.This slurry can use easy relatively coating method (for example volume to volume (roll-to-roll) rubbing method) to coat on the base material significantly to promote its production.Other coating methods are sayed it (but not as limit) for example, can adopt dip coating (dip coating), scraper type rubbing method (comma coating), spraying process (spraying coating), the rotary method (spin coating), extrusion coated method (slot coating), curtain type rubbing method (curtain coating), notch board of being coated with to be coated with the modulus method (gravurecoating) or the excellent rubbing method that winds the line.Especially, can be optionally, with any suitable mode drying.Say it (but not as limit) for example, the mode of can volatilizing naturally or be aided with ventilation and/or the pressure volatilization mode (as: passing to hot-air) of heating is carried out this drying.The combination that this handles coating collocation base material can become a simple wavelength conversion coating combining structure, can combine with existing backlight, lamp source, solid-state illumination application such as (as LED and OLED) and need not change existing structural design, and its high application is arranged.
In addition, this wavelength conversion coating structure can effectively be exempted the phosphor body powder deterioration problem of traditional C CFL.At this, the 185nm light that existing C CFL is produced in discharge process can make the phosphor body powder produce absorption or the frequency spectrum of giving out light (color center, also claim " colour center " or " the look " center "); cause new absorption band to produce; the brightness of phosphor body powder to be reduced (aforementioned phenomenon can be referring to the explanation of No. 6402987 patent of the U.S., this patent content and in for your guidance) herein.Secondly, mercury ion and electronics can discharge 10.42e V energy in lamp tube wall place compound tense, and this energy can destroy the lattice of phosphor body powder, and brightness is reduced.Moreover, owing to have sodium ion usually in the CCFL fluorescent tube, the electron recombination that it is produced in the time of can be with the CCFL fluorescent tube discharging and form sodium atom.This sodium atom will diffuse into the phosphor body powder grain, cause the reduction of phosphor body powder property.Therefore, when being applied to this Wavelength transformational structure in the illuminating module, because the wavelength conversion coating is to separate with the UVc light source, this promptly, phosphor body separates with the UVc light source, so can effectively exempt traditional C CFL phosphor body powder and UVc light source is placed foregoing problems due to the same fluorescent tube.
Particularly, the present invention can provide a Wavelength transformational structure, and it is specifically implemented aspect and can illustrate as Figure 1A, wherein, zero, ● and
Figure A20071014135200151
Represent the phosphor body powder of different colours respectively.Wavelength transformational structure 102 is to comprise a base material 1021 and a wavelength conversion coating 1023.This coating 1023 is to be positioned on this base material 1021 and to comprise one to be subjected to phosphor body powder that UVc excites and the adhesive agent of an anti-UVc.Wherein, the thickness of this conversion coating 1023 is 2 to 10 times of phosphor body powder average grain diameter, and this phosphor body powder is to meet following at least one condition in the content of this wavelength conversion coating 1023:
(i) percent by volume of phosphor body powder in the wavelength conversion coating is 30% to 85% (cumulative volume with phosphor body powder and adhesive agent is a benchmark); And
(ii) the weight ratio of phosphor body powder and adhesive agent is 1: 1 to 20: 1.
The phosphor body powder that can adopt any suitable be subjected to UVc to excite at the wavelength conversion coating.Say it (but not as limit) for example, this phosphor body powder can be selected from following group: Yttrium oxide doping europium, phosphorylation lanthanum cerium doping terbium, barium monoxide magnalium europium doped and combination thereof.Also can on market, directly buy the phosphor body powder of suitable product as this wavelength conversion coating.
In the wavelength conversion coating, the adhesive agent that is adopted is can cohere the phosphor body powder so that a wavelength conversion layer to be provided, and normally is selected from the giant molecule adhesive agent.Yet, be to cooperate the application of UVc, avoid excitation process to cause the deterioration of self material, preferably in this wavelength conversion coating, adopt the adhesive agent of the anti-UVc character of tool.
Particularly, be example with the UVc light source that uses the 253.7nm wavelength, because its light energy is about 113kcal/mol, under the situation of bound by theory not, salty letter is if comprise the chemical bond of a bond energy greater than 113kcal/mol at least in the chemical constitution of the repetitive of a giant molecule adhesive agent, just be enough to resist the energy of UVc wave band, avoid causing the deterioration of self material in excitation process.At this, because of the bond energy of carbon-fluorine bond is 132kcal/mol, so if adopt the UVc light source of 253.7nm, then can adopt following fluoro containing polymers is adhesive agent: polytetrafluoroethylene (PTFE) (polytetrafluoroethylene, PTFE), polyvinylidene fluoride (poly (vinylidenefluorde), PVDF), polyvinylidene fluoride-hexafluoropropene (poly (vinylidenefluoride-hexafluoropropylene), PVDF-HFP), ethylene-tetrafluoroethylene copolymer (ethylene-tetrafluoroethylene copolymer, ETFE), fluorinated ethylene propylene copolymer (fluorinated ethylene propylene copolymer, FEP), the perfluor alcoxyl (perfluoroalkoxy, PFA), fluorubber (fluoro-rubber), fluoroelastomer (fluoro-elastomer), non-crystalline type fluorine macromolecule (amorphous fluoropolymers), and combination.Also can adopt the following polymeric silicon that contains: silica gel (silicon rubber), polysiloxanes (polysiloxane) and combination thereof.Other as polyimides (polyimide, PI), (ployethersulfone, high-effect polymer such as PES) also can be when the ultraviolet light of the 253.7nm wavelength that adopts the UVc wave band, as the adhesive agent of wavelength conversion coating for polyether sulfone.Preferably adopting the giant molecule that contains carbon-fluorine bond is adhesive agent.In addition, inorganic or the organic and inorganic that other tools cohere function or can be used as phosphor body matrix blendes together compound, inorganic or sol gel film (sol-gel materials) etc. as silica, titanium dioxide, zirconium dioxide etc., the UVc of the 253.7nm wavelength of also can arranging in pairs or groups and being applied in the wavelength conversion coating.
As described above, the phosphor body content of powder in the wavelength conversion coating must meet following condition: (1) 30% to 85% percent by volume (cumulative volume with phosphor body powder and adhesive agent is a benchmark) and/or the weight ratio of (2) phosphor body powder and adhesive agent are 1: 1 to 20: 1.At this, when adhesive agent content low more, the phosphor body of the fluorescent layer that provides to each other and phosphor body and use between the base material of this fluorescent layer stick will be weak more; Relatively, when adhesive agent content is high more, though the stronger effect of sticking can be provided, this higher amount adhesive agent is exposed to the chance of UVc will be high more, except that the performance degradation that causes adhesive agent, the easier feasible luminous efficiency of Wavelength transformational structure that provides reduces under long-term the use.Therefore, for a suitable wavelength conversion coating is provided, preferably make and contain the phosphor body content of powder that meets following condition in the wavelength conversion coating (promptly with the structure that forms similar saqima, adhesive agent is to be overlying on the phosphor body powder with thin layer form in coating, but not is a continuous phase): (1) percent by volume is that 50 to 70% the phosphor body and/or the weight ratio of (2) phosphor body powder and adhesive agent are 2.5: 1 to 10: 1.The weight ratio that more preferably makes phosphor body powder and adhesive agent is 3: 1 to 6: 1.
Consider that based on luminous efficiency the particle diameter of phosphor body powder distributes and is preferably 1 to 30 micron, is more preferred from 1 to 10 micron.In addition, can adopt two or the phosphor body powder combinations of multiple particle diameter distributed area pile up efficient to increase it, the UV Absorption efficient and the visible light luminous efficiency of the wavelength conversion coating that provides is provided.At this, only need the particle diameter of one to get final product in above-mentioned scope.Say it for example, can adopt first kind of particle diameter distributed area, and second kind of particle diameter is distributed in the phosphor body powder combinations of 1 to 1000 nanometer at 1 to 10 micron.
In Wavelength transformational structure, too high when the thickness of conversion coating, will stop the visible light that disengages of changing, and if thick coating is spent thin, then easily do not produce the UVc leakage phenomenon entirely, to cause macromolecular material yellows such as the base material of Wavelength transformational structure or adhesive agent because of UVc absorbs.Therefore, change benefit, avoid yellow, should control the thickness of wavelength conversion coating for suitable UVc is provided.At this, through finding, when the thickness of conversion coating is 2 to 10 times of phosphor body powder average grain diameter, can in coating, have piling up of multilayer phosphor body powder, this can make UVc in coating through repeatedly reflection and/or refraction, effectively take into account luminous efficiency and intercept UVc.More preferably, the thickness of this conversion coating is 3 to 5 times of phosphor body powder average grain diameter.Say it for example, when the mean size of phosphor powder was 3 to 4 microns, the thickness of conversion coating was good with 6 to 40 microns, and is better with 10 to 20 microns especially.
The base material of Wavelength transformational structure can be a flexible film, especially by polymeric material institute constitutor, is beneficial to the volume production coating method of traditional volume to volume (roll-to-roll).The preferable tool light-permeable of this flexible substrate is more preferred from tool than high light transmittance.Say it (but not as limit) for example, can adopt the rete that material provided that is selected from following group is base material: PET (polyethylene terephthalate, PET), triacetate fiber (triacetyl-cellulose, TAC), PEN (poly (ethylene2,6-naphthalate), PEN), polyether sulfone (polyether sulfone, PES), polyvinylidene fluoride (poly (vinylidene fluorde), PVDF), ethylene-octene copolymer (poly (ethylene-co-octene), PE-PO), propylene-ethylene copolymers (poly (propylene-co-ethylene), PP-PE), assorted row's polypropylene (atactic polypropylene, aPP), with row's polypropylene (isotactic polypropylene, iPP), functionalised polyolefin (functionalized polyolefin), and LLDPE-g-maleic anhydride (linear low density polyethylene-g-maleic anhydride, LLDPE-g-MA), be preferably the PET and the TAC of optical grade.
Can transparent sheet be the base material of Wavelength transformational structure also.Say it (but not as limit) for example, can adopt by glass, quartz, poly-(methyl methacrylate) (poly (methyl methacrylate), PMMA), polystyrene (polystyrene, PS), poly-(methyl methacrylate-styrene) copolymer (methylmethacrylate-co-styrene, )) or Merlon (polycarbonate MS)), PC) thin slice that is provided is a base material, perhaps, the fabric (fabrics) that can utilize light-permeable is as base material, and its material is generally glass.In addition, also can adopt by two or the composite bed that constituted of above-mentioned rete and/or the thin slice of multilayer be base material; At this, can utilize the macromolecule pressure-sensing glue to bind each layer.
This Wavelength transformational structure can be made by the method that comprises the steps:
One base material is provided;
Apply a slurry at this substrate surface, it is to place a storage tank and comprise:
(a) a phosphor body powder that excited by UVc;
(b) an anti-UVc adhesive agent; And
(c) organic solvent,
Wherein, this phosphor body powder and this adhesive agent all as defined above and this two weight ratio be 1: 1 to 20: 1; And
The dry base material that is somebody's turn to do through applying.
Can adopt any suitable organic solvent with supporting agent (carrier) as phosphor body powder and adhesive agent.Generally speaking, consideration based on the easiness of continuity coating, normally control serum viscosity using in the scope of 10cps to 10000cps, be preferably the employing low boiling point organic solvent this moment, avoiding in the coating dry run phosphor body precipitation taking place, and then cause problem such as misalignment because of solvent can't volatilize rapidly.Suitable low boiling point solvent comprises that (but not as limit) is selected from the following person of group: C 3-C 4Ketone, the C that replaces through one or more halogen 1-C 4Paraffinic, C 5-C 7Paraffinic, C 5-C 6Naphthenic, C 1-C 4Alkane alcohols, C 2-C 4Ethers, ethyl acetate, benzene, toluene, acetonitrile (acetonitrile), oxolane, benzinum, the plain solvent of fluorine and combination thereof.Be preferably C 3-C 4Ketone, the C that replaces through one or more halogen 1-C 4Paraffinic, C 5-C 7Paraffinic, C 5-C 6Naphthenic, acetonitrile, and aforesaid combination.
The instantiation of the low boiling point organic solvent that is suitable for includes, but is not limited to: acetone, MEK, 1,2-dichloroethanes, carrene, chloroform, pentane, n-hexane, heptane, pentamethylene, cyclohexane, methyl alcohol, ethanol, propyl alcohol, isopropyl alcohol, tertiary butyl alcohol, ether, ethyl acetate, benzene, toluene, acetonitrile (acetonitrile), oxolane, benzinum and combination thereof.Preferable specific embodiment is toluene, MEK, ethyl acetate, 1,2-dichloroethanes and combination thereof.
Organic solvent content in the slurry is not emphasis of the present invention place, visually desires the slurry viscosity and adjusts.The general organic solvent content (is benchmark with the slurry gross weight) that is adopted is preferably 35 to 55 weight % at 20 to 80 weight %.
Optionally, can in slurry, further add other compositions, so that the life-span of the Wavelength transformational structure that provided to be provided.These other compositions that optionally add comprise (but not as limit): stabilizing agent, absorbent, blocking agent and combination thereof.In this,, be that the blocking-up benefit can be provided as the metal oxide (being preferably tool nano-scale person) of aluminium oxide, zinc oxide and titanium dioxide; As the organic compound of diphenylketone and BTA, be typical absorbent, it can absorb ultraviolet light and disengage heat; As the light stabilizer of hindered amine (hindered amine), then can absorb and be excited group and prevent the chemical reaction that it causes.Generally speaking, for avoiding that the usefulness of Wavelength transformational structure is caused adverse effect, these optionally the total amount of adding ingredient be generally (is benchmark with the slurry gross weight) and be no more than 10 weight %.
In said method, can be in coating be carried out preceding or is carried out with aforementioned phosphor body powder and adhesive agent blending in solvent to form required slurry.Thereafter, this slurry is coated on substrate surface, the dry again solvent of removing promptly gets the wavelength conversion coating of being desired.Preferably, be the stirring of in coating procedure, the slurry in this storage tank being bestowed appropriateness, to avoid because of precipitation of solid material or phenomenon of phase separation due to the density variation.Can various suitable mode so that this stirring to be provided.Say it (but not as limit) for example, can stir via mechanical agitation mode, homogeneous, mixing, twin shaft stirring, the stirring of three cylinders, planetary stirring, ball milling or pulse pressuring method, to form turbulent disturbance in the slurry in storage tank, reach the stirring purpose.
Can adopt any suitable mode to carry out above-mentioned coating operation.Say it (but not as limit) for example, can adopt dip coating (dip coating), scraper type rubbing method (comma coating), spraying process (sprayingcoating), the rotary method (spin coating), extrusion coated method (slot coating), curtain type rubbing method (curtain coating), notch board of being coated with to be coated with modulus method (gravure coating) or volume to volume (roll-to-roll) rubbing method.Optionally, can carry out one or repeatedly apply and be operated to required coating layer thickness.This coating can any suitable way with drying.Say it (but not as limit) for example, the mode of can volatilizing naturally or be aided with ventilation and/or the pressure volatilization mode (as: passing to hot-air) of heating is carried out this drying.
This Wavelength transformational structure can be applicable to an illuminating module.At this, can be covered with the optics enhancement structure of the opposite side formation of wavelength conversion coating side if necessary in base material, so that extra optical effect to be provided as prism or particulate.Wavelength transformational structure can optionally more comprise any suitable optical element, for example diffuser plate, diffusion barrier, brightness enhancement film (Brightness Enhancement Film; BEF), reflective brightness enhancement film (Dual BrightnessEnhancement Film; DBEF), the blooming piece of prism plate (Prism Plate), convex lens sheet (Lenticular Film), Polarizer or aforementioned combination, so that blast or deflecting efficacy to be provided.Another of Wavelength transformational structure implemented aspect and illustrated with Figure 1B, Fig. 1 C now, wherein, zero, ● and
Figure A20071014135200201
Represent the phosphor body powder of different colours respectively.In Figure 1B, Wavelength transformational structure 104 is to comprise the wavelength conversion coating 1043 that a base material 1041 and is positioned at base material 1041 tops, base material 1041 be by just like the transparent film layer 1045 of PET with just like the transparent sheet 1047 of PMMA, MS or PC via the composite bed that forms that one deck macromolecule pressure-sensing glue 1049 is binded.Wavelength transformational structure 106 shown in Fig. 1 C is to comprise the wavelength conversion coating 1063 that a base material 1061 and is positioned at base material 1061 tops, and wherein, base material 1061 is that an optics that has prism structure or a diffusion structure in a side is promoted structure.In addition, can on base material, use a protectiveness film (as the PET film) to protect it.
Fig. 2 A shows that one uses the decomposing schematic representation of the illuminating module of above-mentioned Wavelength transformational structure.In the framework 201 of illuminating module 20, be provided with UVc light source 203.Light source 203 is generally a fluorescent tube (lamp).Be the fixed lamp tube position, its unlikely generation is moved, traditionally a light source holder (holder) 207 (shown in Fig. 2 B) can be set between light source 203 and framework 201 bottoms.This light source holder 207 has a backboard 2071, most individual fixed mount 2073 and a support column 2075 usually.Fixed mount 2073 all is arranged on the backboard 2071 with support column 2075, and 2071 of backboards are fixed on the bottom in the framework 201.This light source 203 of fixed mount 2073 clampings makes it be fixed in an appropriate location, but support column 2075 then the optical element of support frame 201 tops (figure do not illustrate) make it unlikely sagging.Wherein, the UVc that not produced by light source 203 by protection light source holder 207 is damaged, and also can apply aforementioned wavelength conversion coating (figure does not illustrate) on the surface of light source holder 207.
Following illuminating module (comprising module backlight) all can optionally be provided with the light source holder, but for simplicity, unless otherwise indicated, otherwise will describe with the aspect that the light source holder is not set in the following content.
With reference to figure 2A, framework 201 has an opening 2011 again, and a Wavelength transformational structure 205 is set on opening 2011, to form a confined space 2013 that contains air with framework 201.Wavelength transformational structure 205 comprises a wavelength conversion coating 2051 and a base material 2053, and wavelength conversion coating 2051 is coated the base material 2053 area source side of base material 2053 (that is) on the side of light source 203.In illuminating module 20, when light source 203 produces UVc and directive Wavelength transformational structure 205, the phosphor body powder in the wavelength conversion coating 2051 will be excited by UVc, and disengage visible light.
The color of this visible light can obtain via light colour mixture principle, for example mixes red, green and blue visible light, can obtain the visible light of white in fact.
Fig. 3 A shows that one uses the generalized section of the illuminating module 30 of above-mentioned Wavelength transformational structure.Illuminating module 30 comprises a framework 301, a Wavelength transformational structure 305, the confined space that contains air 3013 that is surrounded by framework 301 and Wavelength transformational structure 305 and the UVc light source 303 that is positioned at confined space 3013.Wavelength transformational structure 305 comprises one first wavelength conversion coating 3051 and a base material 3053, the first wavelength conversion coatings 3051 and coats the base material 3053 area source side of base material 3053 (that is) on the side of light source 303.The first wavelength conversion coating 3051 comprises the phosphor body powder that excited by UVc and disengage first visible light.One second wavelength conversion coating 307 then is set on the madial wall of framework 301, and it comprises the phosphor body powder that excited by UVc and disengage second visible light.When light source 303 produces UVc and the directive Wavelength transformational structure 305 and the second wavelength conversion coating 307, the phosphor body powder in the first wavelength conversion coating 3051 of Wavelength transformational structure 305 will be excited by UVc and disengage first visible light; Phosphor body powder in the second wavelength conversion coating 307 is then excited by UVc and disengages second visible light.This second visible light is after passing Wavelength transformational structure 305, and first visible light that disengages with structure 305 carries out mixed light and produces one the 3rd visible light.
In the illuminating module 30 of Fig. 3 A, when the color of first visible light and second visible light is identical, can provide color identical with first visible light but brightness is the 3rd high visible light than it with second visible light; And, provide the color and first visible light visible light different with second visible light if the color of first visible light and second visible light not simultaneously, then can produce the mixed light effect.Say it for example, when this first visible light comprises red visible light and green visible light and this second visible light and is blue light, just can produce white visible light by aforementioned mixed light.
The setting of this second wavelength conversion coating 307, except that can adopting the mode of directly coating framework 301 madial walls (as shown in Figure 3A), also can be via earlier the second wavelength conversion coating 307 being coated on the suitable flexible substrate (figure does not draw), to form one second Wavelength transformational structure (figure does not draw), again this structure is arranged at the mode on framework 301 madial walls and reaches thereafter, provide desire the mixed light benefit.
The generalized section of another illuminating module 32 of the above-mentioned Wavelength transformational structure of Fig. 3 B display application.The confined space that contains air 3213 that illuminating module 32 comprises a framework 321, a Wavelength transformational structure 325 and surrounded by framework 321 and Wavelength transformational structure 325.Be provided with most light sources in the confined space 3213, comprise light source 3231 that can produce UVc and the light source 3233 that can produce visible light (for example blue visible light).Wavelength transformational structure 325 comprises a wavelength conversion coating 3251 and a base material 3253, and wavelength conversion coating 3251 is coated base material 3253 (that is, in area source side of base material 3253) on the side of light source.Wavelength conversion coating 3251 comprises the phosphor body powder that excited by UVc to disengage a visible light.The illuminating module 30 of similar earlier figures 3A, in illuminating module 32, when light source 3231 produces UVc and directive Wavelength transformational structure 325, the phosphor body powder in the wavelength conversion coating 3251 will be excited by UVc, and disengage one first visible light.Second visible light that this first visible light and light source 3233 are produced carries out mixed light, produces one the 3rd visible light.The color of the 3rd visible light can be identical with second visible light with first visible light (when the color of first visible light identical with second visible light) or be first visible light and second visible light the mixed light result (when the color and second visible light of first visible light different).
As known, general UV CLight source removes UV when luminous CBeyond the ultraviolet light of wave band, also may provide a little UV AWave band and/or UV BThe ultraviolet light of wave band.For effectively utilizing UVc, the phosphor body powder among the present invention can be selected the phosphor body powder that absorbs the UVc wavelength for use, and the combination that can absorb the phosphor body powder of other ultraviolet wavelengths, but for example absorbing wavelength is essentially the UV of 365 nanometers (nm) BOr the UV of 400 nanometers (nm) AThe phosphor body powder, with the ultraviolet light that abundant converted light source was sent.
For avoiding aforementioned micro-UV AWave band and/or UV BThe wave band ultraviolet light the influence that may cause, remove in the wavelength conversion coating of illuminating module, to comprise simultaneously and can absorb UV CWith UV AAnd UV BPhosphor powder beyond, also can in the Wavelength transformational structure of illuminating module, further comprise a ultraviolet wavelength and block coating, leak to reduce any possible ultraviolet light.The illuminating module that this tool ultraviolet wavelength blocks coating is implemented the schematic diagram of aspect can be with reference to figure 4A to Fig. 4 C, wherein Fig. 4 A is the exploded view for illuminating module, Fig. 4 B, Fig. 4 C be among Fig. 4 A along the Wavelength transformational structure partial cutaway schematic of AA ' line, represent two different aspects of Wavelength transformational structure.
Shown in Fig. 4 A, illuminating module 40 comprises a framework 401 and has an opening 4011, is provided with UVc light source 403 in the framework 401.One Wavelength transformational structure 405 is set on opening 4011, and Wavelength transformational structure 405 and framework 401 are combined to form a confined space 4013 that contains air.Wherein, one of Wavelength transformational structure 405 is implemented aspect shown in Fig. 4 B, from bottom to top comprise a wavelength conversion coating 4051, a base material 4053 and a ultraviolet wavelength and block coating 4055, that is, it is the both sides that place base material 4053 that wavelength conversion coating 4051 blocks coating 4055 with ultraviolet wavelength.Ultraviolet wavelength blocks coating 4055 also can optionally place base material 4053 with wavelength conversion coating 4051 homonymy, shown in Fig. 4 C.
The material that ultraviolet wavelength blocks coating 4055 can be any person that blocks the ultraviolet light, for example: ultraviolet light barrier material, ultraviolet light stabilized material, UV Absorption material, ultraviolet light reflecting material, and aforesaid combination.Ultraviolet light barrier material such as metal oxide commonly used, concrete aspect can be aluminium oxide, titanium dioxide, zinc oxide, reach aforesaid combination.Wherein, preferably adopt particle diameter in fact less than 1 micron metal oxide.Adoptable ultraviolet light stabilized material such as hindered amine (hindered amine), and concrete example such as diphenylketone, BTA, and the aforesaid combination then of adoptable UV Absorption material.
Leak for further blocking ultraviolet light, can in the framework madial wall of illuminating module, a protective layer be set further.With reference to figure 5, show another illuminating module in framework generalized section partly, this illuminating module but has a protective layer at the framework madial wall in addition shown in Fig. 4 A.As shown in Figure 5, this enforcement aspect is to comprise a framework 501, is provided with UVc light source 503 in it, and is provided with a protective layer 505 in madial wall, penetrates this framework 501 to stop the light that the UVc light source is sent.Protective layer 505 is to comprise as described above that ultraviolet wavelength blocks contained the blocked ultraviolet light material of coating or a reflecting layer (for example metal level).Framework 501 madial walls can optionally be provided with a wavelength conversion coating (example as shown in Figure 3A), and when being provided with this wavelength conversion coating, protective layer 505 is to be arranged between framework inwall and the wavelength conversion coating.
Above-mentioned various illuminating module also can be applicable in the module various backlight of display unit, for example side-light type module backlight or down straight aphototropism mode set.Fig. 6 is the schematic diagram of the side-light type module 60 backlight of this illuminating module of application.Module 60 backlight comprises a framework 61, and the side in the framework 61 is provided with UVc light source 63, and a side of light source 63 then is provided with a Wavelength transformational structure 65.Appropriate place in framework 61 is provided with required blooming piece, for example diffusion barrier 671, prismatic lens 673, LGP 675, reflector plate 679 or the like.
Fig. 7 is above-mentioned illuminating module is used aspect in one of down straight aphototropism mode set a schematic diagram.In Fig. 7, down straight aphototropism mode set 70 comprises the framework 701 of a tool one opening, is provided with UVc light source 703 in the framework 701, is provided with a Wavelength transformational structure 705 on framework 701 openings, then is provided with a blooming piece 707 on the Wavelength transformational structure 705.Wherein, Wavelength transformational structure 705 comprises a wavelength conversion coating 7051 and a base material 7053.Base material 7053 is generally a light-permeable base material, and wavelength conversion coating 7051 is arranged at the face light side of base material 7053 usually.
Fig. 2 B is described as described above, and relevant blooming piece is in the illuminating module application of (comprising module backlight), and tradition is to be provided with the light source holder that comprises support column in the framework of illuminating module.Wherein, support column mainly is that blooming piece is sagging, the uneven phenomenon of minimizing membrane surface in order to avoid, thus brightness irregularities or incorrect result due to exempting therefore.Fig. 8 is the schematic diagram that one of traditional down straight aphototropism mode set is implemented aspect.Down straight aphototropism mode set 80 comprises the framework 81 of a tool one opening, be provided with light source 83 in the framework 81, on framework 81 openings, be provided with blooming piece 85, and in framework 81, exist support column 87 with support of optical diaphragm 85, in order to avoid remove the unfavorable result of diaphragm 85 air spots due to smooth (for simplicity, among this figure only the support column part of display light source holder).
Yet, through finding, when adopting existing means in down straight aphototropism mode set 70 shown in Figure 7, when coming support of optical diaphragm 707 with support column, because blooming piece 707 is to be located on the Wavelength transformational structure 705 and wavelength conversion coating 7051 is the area source sides that are arranged at Wavelength transformational structure 705, so wavelength conversion coating 7051 will directly contact with support column.This is in long-time use, or in module carrying backlight or installation process, all may cause support column infringement (for example scratch) wavelength conversion coating 7051, causes the luminous defective of module backlight.
For avoiding above-mentioned because of the smooth phenomenon of air spots due to support column infringement Wavelength transformational structure or the Wavelength transformational structure rigidity deficiency, can be in module backlight further setting one fixture of Wavelength transformational structure one tension force can be provided, the surface of keeping this Wavelength transformational structure is in smooth in fact, and the use of release support column.Particular words it, can be before a Wavelength transformational structure be arranged at module backlight, apply a tension force in advance in this Wavelength transformational structure earlier, make its surface obtain substantial smooth.Afterwards, under the smooth in fact state in Wavelength transformational structure surface, fix its shape, thereby keep its surface in smooth in fact with a fixture.
Can adopt various suitable fixture.For example, fixture can comprise first element and second element in correspondence with each other, but when these two elements interosculate the shape of fixed wave length transformational structure, make the smooth in fact surface of this Wavelength transformational structure tool.Perhaps, fixture can comprise the element that a configuration matches with framework, with the shape of fixed wave length transformational structure when combining with framework.
Say it for example, with reference to figure 9A to Fig. 9 F, an enforcement aspect that shows this module backlight, it comprises a particular aspect of said fixing device, wherein Fig. 9 A is the exploded view for module backlight, Fig. 9 B to Fig. 9 F be among Fig. 9 A along the Wavelength transformational structure partial cutaway schematic of BB ' line, represent the different aspects of Wavelength transformational structure.
Shown in Fig. 9 A, module 90 backlight comprises the framework 91 of a tool one opening 911, is provided with a Wavelength transformational structure 93 on opening 911, is provided with UVc light source 95 in the framework 91.Wavelength transformational structure 93 comprises a wavelength conversion coating 931 and a base material 933, and wavelength conversion coating 931 is positioned at the area source side of base material 933.Wavelength transformational structure 93 is fixed its shape via a fixture, and fixture comprises first framework 971 and second framework 973, and framework 971 and framework 973 tools same size in fact.Shown in Fig. 9 B,,, make the smooth in fact surface of its tool to fix the shape of this Wavelength transformational structure 93 via framework 971 and framework 973 being individually fixed in the two sides up and down of Wavelength transformational structure 93 as the suitable way of binder.
Contained two frameworks of fixture must the tool same size, also can have a different size, shown in Fig. 9 C.In Fig. 9 C, the size that fixture comprises first framework 975 and second framework, 977, the second frameworks 977 is less than first framework 975 (perhaps opposite, that is, the size of first framework 977 is less than second framework 975) and can be embedded mutually with first framework 975.Thereby, when framework 975 is embedded mutually with framework 977, Wavelength transformational structure 93 can be fixed in wherein, thereby keep its surface in smooth in fact.
Also can shown in Fig. 9 D, only use a framework 979, Wavelength transformational structure 93 is fixed on the framework 979, in smooth in fact, and can place on the framework 91 with the surface of keeping Wavelength transformational structure 93 via binder or other appropriate modes.Perhaps, can be shown in Fig. 9 E and Fig. 9 F, adopt external diameter framework 981 or internal diameter than framework 91 cross sections of the opening 911 sides big framework 983 little, the mode that is embedded mutually with framework 91 via framework 981 or 983 than opening 911, the shape of fixed wave length transformational structure 93 makes the smooth in fact surface of its tool.
The framework that the above-mentioned framework of respectively implementing aspect can be one of the forming or be framework that most bar made up.In addition, the shape of framework is not limited to rectangle, also can be to use to go up required other shapes (as: ellipse).
Also can be on fixture the design of tool particular configuration, by the combination between configuration and the fixed wave length transformational structure.Referring to figures 10A to Figure 10 E, Figure 10 A is the schematic diagram of another enforcement aspect of this module backlight, wherein Figure 10 A is the exploded view of module backlight, Figure 10 B to Figure 10 E be among Figure 10 A along the Wavelength transformational structure partial cutaway schematic of CC ' line, represent the different aspects of Wavelength transformational structure.In Figure 10 A, the framework 101 of module 100 backlight has an opening 1011, is provided with a Wavelength transformational structure 103 on opening 1011, is provided with UVc light source 105 in the framework 101.Wavelength transformational structure 103 comprises a wavelength conversion coating 1031 and a base material 1033, and wavelength conversion coating 1031 is positioned at the area source side of base material 1033.Shown in Figure 10 B, fixture comprises first element 1071 of a tool concavity structure, and second element 1073 of a tool convex structure.The position of the concavity structure of first element 1071 is corresponding with the position of the convex structure of second element 1073 at least.
Certainly, fixture also can comprise first element 1075 of a tool convex structure, and second element 1077 of a tool concavity structure, shown in Figure 10 C.Wherein, the position of this concavity structure is corresponding with the position of this convex structure at least.Preferably, this concavity structure and convex structure are to be respectively bar shaped concavity structure and bar shaped convex structure.Thereby, when the concavity structure is embedded mutually with the convex structure, can fixed wave length transformational structure 103 in wherein, and keep its surface in smooth in fact.
Also can be by the combination of framework and fixture, provide desire the benefit of fixed wave length transformational structure.Figure 10 D shows the schematic diagram of an enforcement aspect of this combination.Wherein, framework 101a is further in top tool one convex structure, and fixture then comprises first element 1079 of a tool concavity structure, and the position of this concavity structure is corresponding with the position of convex structure at least.When both are embedded mutually, can fixed wave length transformational structure 103, keep the smooth in fact surface of its tool.Perhaps, can be in framework top tool concavity structure and comprise the element that has with the corresponding convex structure of this concavity structure in fixture, referring to Figure 10 E.Shown in Figure 10 E, framework 101b is further in top tool one concavity structure, and fixture then comprises first element 1081 of a tool convex structure, and the position of concavity structure is corresponding with the position of convex structure at least.
Respectively implement in the aspect above-mentioned, first element 1071,1075,1079,1081 and second element the 1073, the 1077th are set at the part side of Wavelength transformational structure 103, but not limit by this, first element 1071,1075,1079,1081 and second element 1073,1077 also can be set at whole sides or other appropriate locations of Wavelength transformational structure 103.Each concavity structure and convex structure are not limit by graphic shape yet.In addition, fixture can optionally comprise two or more first elements or second element.
Say it for example, for the framework that opening is rectangle, first element and second element can be the bar that encompasses rectangle, also can be for by rectangle L shaped or that the phase embedding of I shape bar institute combines.In this, when the combination of adopting framework and fixture, to be embedded mutually during the fixed wave length transformational structure by its recessed/male structure, can in fixture contain two have corresponding with the framework top recessed/the I shape bar of convex structure, via being embedded and the relative side of fixed wave length transformational structure mutually, to keep its surface in smooth in fact with framework top opposite side.Also can in fixture contain two have corresponding with the framework top recessed/the L shaped bar of convex structure, via being embedded and the relative side angle of fixed wave length transformational structure mutually, and keep its surface in smooth in fact with framework top relative angle.
Fixture also can be other aspects.With reference to figure 11A to Figure 11 D, Figure 11 A shows a module 110 backlight, and wherein Figure 11 A is the exploded view of module backlight, Figure 11 B to Figure 11 D be among Figure 11 A along the Wavelength transformational structure partial cutaway schematic of DD ' line, represent the different aspects of Wavelength transformational structure.Shown in Figure 11 A, module 110 backlight comprises a framework 111, and framework 111 has an opening 1111, is provided with a Wavelength transformational structure 113 on opening 1111, is provided with UVc light source 115 in the framework 111.Wavelength transformational structure 113 comprises a wavelength conversion coating 1131 and a base material 1133, and wavelength conversion coating 1131 is positioned at the area source side of base material 1133.Shown in Figure 11 B, fixture comprises second element 1173 that first element 1171 and with a connection piece has a connecting hole, and this connector is to match with this connecting hole.Thereby, combine first element 1171 and second element 1173 via this connector with this connecting hole, with fixed wave length transformational structure 113, make the smooth in fact surface of its tool.
The enforcement aspect of another module backlight is shown in Figure 11 C, wherein, module backlight is with identical shown in Figure 11 A, but then further tool one connecting hole of the framework 111a that is comprised, fixture then comprises first element 1175 with connector, and the connecting hole of framework 111a matches with the connector of first element 1175.Thereby, combine first element 1175 of framework 111a and fixture with connecting hole by connector, with the shape of fixed wave length transformational structure 113, make the smooth in fact surface of its tool.Similarly, can be shown in Figure 11 D, at the further tool a connection piece of the framework 111b of module backlight (side convex portion as shown in FIG.), fixture then comprises first element 1177 with connecting hole, and this connector matches with this connecting hole.To combine first element 1177 of framework 111b and fixture with connector by connecting hole,, make the smooth in fact surface of its tool with the shape of fixed wave length transformational structure 113.In above-mentioned enforcement aspect, first element 1177 or second element 1173 are to be a strip, but not limit by this, and it also can be other suitable shapes.In addition, in specific words, connector can be a screw, and connecting hole can be a nut; Perhaps connector can be a trip, and connecting hole can be a draw-in groove; Or know combination configuration known to the knowledgeable usually for other this area tools.
The enforcement aspect of another module backlight is shown in 12A to 12C figure, and wherein Figure 12 A is the exploded view of module backlight, Figure 12 B and Figure 12 C be among Figure 12 A along the Wavelength transformational structure partial cutaway schematic of EE ' line, represent the different aspects of Wavelength transformational structure.Shown in Figure 12 A, module 120 backlight comprises a framework 121, and its tool one opening 1211 is provided with a Wavelength transformational structure 123 on opening 1211, be provided with UVc light source 125 in the framework 121.Wavelength transformational structure 123 comprises a wavelength conversion coating 1231 and a base material 1233, and wavelength conversion coating 1231 is positioned at the area source side of base material 1233.Shown in Figure 12 B, module 120 backlight comprises a fixture in addition, and it comprises a framework 1271 and an elastic component 1273 (a for example clip).By fixture, with elastic component 1273 Wavelength transformational structure 123 is fixed on the framework 1271 and fixes its shape, make the smooth in fact surface of its tool.Another fixture aspect can be with reference to figure 12C.Wherein, framework 121a protrudes configuration at apical margin tool one, and fixture then comprises first element 1275 (a for example clip) of tool one elastic component.First element 1275 by fixture is fixed in framework 121a with Wavelength transformational structure 123 to be gone up and fixes its shape, makes the smooth in fact surface of its tool.In above-mentioned enforcement aspect, this elastic component is not limit by the form in graphic can, also can be spiral form or other can supply the form of usefulness.
Below will be with concrete enforcement aspect further to illustrate Wavelength transformational structure and the application thereof that discloses herein.
Embodiment
In following examples, the composition that is adopted, material and instrument are following listed:
(1) adhesive agent composition:
The adhesive agent solution A: building light company provides and contains the plain macromolecular solution (Chipaste) of 20 weight % fluorine, but by the about 100 microns wet film of adhesive agent solution A gained thickness in 50 ℃ of following 30 seconds bone dries.
Adhesive agent solution B: with PVDF (polyvinylidene difluoride, Kynoar) (Dyneon company) is dissolved in the acetone, allocate and must contain the acetone soln of 7 weight %PVDF, but by the about 100 microns wet film of adhesive agent solution B gained thickness in 50 ℃ of following 20 seconds bone dries.
Adhesive agent solution C: with PVDF-HFP (polyvinylidenedifluoride-co-hexafluoroproplene, Kynoar-hexafluoropropene) (Atofina company, model Kynar2801) is dissolved in the acetone, allocate and must contain the acetone soln of 7 weight %PVDF-HFP, but by the about 100 microns wet film of adhesive agent solution C gained thickness in 50 ℃ of following 20 seconds bone dries.
(2) phosphor body powder: Japanese Kasei company, model LP-W1, look EX-D.
(3) luminance test method I:
Measure module: it is wide that the module of UVc light source (253.7nm), this module are of a size of 36 centimetres of 60 centimeter length, and (length dimension is 590 centimetres, and caliber is 3.5 centimetres, and thickness of pipe wall is 0.7 centimetre, and fluorescent tube intensity is 3100 μ W/cm wherein to place 16 UVc fluorescent tubes 2), the spacing between fluorescent tube is 2 centimetres, and below, lamp source is an aluminium reflector plate, and a sample rest area is left in this module top.
Method of testing: testing sample is positioned over top, lamp source to contain the fluorescent coat side to the mode in UVc lamp source, and sample top 0.5 centimeters is placed an optical measurement detector (the grand enterprise of space, model RK828) to measure chromaticity coordinates and brightness value.
(4) luminance test method II:
Measure module: it is wide that the module of UVc light source (253.7nm), this module are of a size of 42 centimetres of 72 centimeter length, and (length dimension is 710 centimetres, and caliber is 3.5 centimetres, and thickness of pipe wall is 0.7 centimetre, and fluorescent tube intensity is 3450 μ W/cm wherein to place 16 UVc fluorescent tubes 2), the spacing between fluorescent tube is 3.5 centimetres, and below, lamp source is the reflector plate of the identical wavelength conversion coating of a coating, and a sample rest area is left in this module top.
Method of testing: testing sample is positioned over top, lamp source to contain the fluorescent coat side to the mode in UVc lamp source, and sample top 50 centimeters are placed a YC meter (middle favour science and technology, model Topcon BM7) to measure chromaticity coordinates and brightness value.
Embodiment 1
900 gram adhesive agent solution A are inserted in 2000 ml beakers, stirred 10 minutes with magnetite.Add 900 gram phosphor body powder again, at room temperature mixed 20 minutes, with the slurry that obtains to mix with the mechanical agitation leaf.After slurry mixes, add in the vapour-pressure type pulse cycle device and stirred 30 minutes.Thereafter, utilize the extrusion coated method to coat on the PET base material (125 microns of thickness), the spacing of its squeeze film mouth and PET base material is 15 microns, and the pressure that spues is 0.12MPa, and coating speed is 15 meters/minute.After wet film is finished again with 50 ℃ hot-air seasoning, thereby be provided in the sample of the wavelength conversion coating of tool 12 to 15 micron thickness on the PET base material.
Use luminance test method I, wherein sample rest area size is that the distance between 20 centimetres wide of 30 centimeter length and sample and light source is 1.5 centimetres; Measure x value, y value and the brightness value of gained sample according to the color coordinate metering system of CIE1931, result such as table 1 are listed:
Table 1
CIEx CIEy Brightness (cd/M 2)
0.271 0.321 5314
The result of wavelength conversion is shown in Figure 13 A and Figure 13 B, and wherein Figure 13 A is the original light source spectrum of this module that UVc light source is provided, the spectrum of Figure 13 B for sending through the gained sample; It shows that gained wavelength conversion coating sample can effectively be converted to visible light with UVc.
Embodiment 2
Repeat pulp preparation, coating and the drying steps of embodiment 1, but with gained slurry extrusion coated on the PET base material of 125 microns of thickness, obtain the sample of the wavelength conversion coating of tool 12 to 15 micron thickness on the PET base material.
Then, utilize scraper to be coated with the face without wavelength conversion coating coating of the acryl glue (enterprise of full section, model S3277) of 25 micron thickness at the gained sample.With this sample and acryl base material (2 centimetres of thickness) and PET protection base material (25 microns of thickness), (the holy industry of will, model C SL-M25R) carried out pressing with the roller film sticking equipment after coating was finished.Wherein, the glue face of sample is pressed on this acryl base material, PET protection base material then pressing in the another side of this acryl (poly-(methyl methacrylate)) base material.Applying speed is 1.5 meters/minute, pressure 3kgf/ square centimeter, 40 ℃ of temperature.Similarly, repeat above-mentioned steps, but replace this acryl substrate with polycarbonate substrate (2 centimetres of thickness).
Use luminance test method I, wherein sample rest area size is that the distance between 20 centimetres wide of 30 centimeter length and sample and light source is 2 centimetres; Measure x value, y value and the brightness value of gained sample according to the color coordinate metering system of CIE1931, result such as table 2 are listed:
Table 2
The substrate kind CIEx CIEy Brightness (cd/M 2)
The acryl substrate 0.289 0.321 4655
Polycarbonate substrate 0.280 0.321 4945
Embodiment 3
Take the phosphor body powder of metering and the adhesive agent solution of metering and be allocated as mixture respectively, be loaded on 50 milliliters respectively and seal in the vial with magnetite and stirred 10 minutes, with ultrasonic concussion 10 minutes, obtain 6 parts of slurries again with the listed weight ratio of table 3.
The PET base material (125 microns of thickness) of 10 centimetres of wide 15 centimeter length is adsorbed on the vacuum suction platform, each slurry is coated on the PET base material with the excellent rubbing method that winds the line, coating speed is 10 meters/minute, repeats the coating of each slurry.6 PET base materials that respectively scribble different slurries were positioned in the ventilating air air dry 3 minutes, and the gained coating layer thickness is about 15 to 18 microns.
Use luminance test method I, wherein sample rest area size is that the distance between 20 centimetres wide of 30 centimeter length and sample and light source is 2 centimetres; Measure x value, y value and the brightness value of gained sample according to the color coordinate metering system of CIE1931, result such as table 3 are listed:
Table 3
The weight ratio of phosphor body powder and adhesive agent CIEx CIEy Brightness (cd/M 2)
0.5: 1 (comparative example) 0.270 0.318 3497
1∶1 0.274 0.323 3953
2.5∶1 0.291 0.346 3809
5∶1 0.288 0.347 4545
10∶1 0.292 0.339 4078
15∶1 0.262 0.303 3726
Embodiment 4
I. the adhesive agent that contains carbon-fluorine bond
Repeat pulp preparation, coating and the drying steps of embodiment 3, only be to use adhesive agent solution A, adhesive agent solution B and adhesive agent solution C, and the weight ratio of each phosphor body powder and the contained adhesive agent of adhesive agent solution is 5: 1.Again with allocate and slurry coat separately on the PET base material of 125 microns of thickness, obtain the tool coating layer thickness and be 12 to 15 microns sample.Wherein, use the sample of adhesive agent solution A, B and C gained to be called sample A, B and C.
Use luminance test method I, wherein sample rest area size is that the distance between 10 centimetres wide of 10 centimeter length and sample and light source is 2 centimetres; Measure x value, y value and the brightness value of gained sample according to the color coordinate metering system of CIE1931, the result is listed as showing 4-1:
Table 4-1
Sample CIEx CIEy Brightness (cd/M 2)
A 0.282 0.314 3748
B 0.294 0.323 3502
C 0.296 0.327 3684
In addition, as follows, sample A and sample C are carried out an acceleration experiment.Respectively sample A and sample C are positioned on the single UV fluorescent tube fixture, wherein, the distance of sample and light source is 0.5 centimetre, and UV intensity is 10000 μ W/cm 2, and the sample irradiation area is 2 centimetres of 2 cm x.Reaching prolonged exposure measured intensity and colourity after 1000 hours at the beginning respectively, the result is as shown in the table:
II. carbon oxygen is adhesive agent (comparative example)
Taking phosphor body powder and adhesive agent solution A is that 5: 1 ratio is loaded on 50 milliliters and seals in the vial with the weight ratio of phosphor body powder and adhesive agent, stirs 10 minutes with magnetite, stirs the back with ultrasonic concussion 10 minutes, and obtaining a fluorine is slurry.Other prepares a polyvinyl alcohol (polyvinyl alcohol, PVA) adhesive agent solution (is the PVA of solvent and tool 20 weight % with the deionized water) and with etc. the phosphor body powder of weight mix with mortar, obtain one hydrocarbon be slurry (wherein the bond energy of hydrocarbon key is 98kcal/mol).
Then, the PET base material (125 microns of thickness) of 10 centimetres of wide 15 centimeter length is adsorbed on the vacuum suction platform, two slurries are coated on each PET base material with the scraper rubbing method respectively, scraper gap is 50 microns, and coating speed is 10 meters/minute.After, will be that the PET base material of slurry coating was positioned in the ventilating air air dry 3 minutes through fluorine, through hydrocarbon be that the PET base material of slurry coating was with 80 ℃ of heating of hot-air oven 30 minutes.The gained coating layer thickness is about 17 to 20 microns.
Use luminance test method I, wherein sample rest area size is that the distance between 20 centimetres wide of 30 centimeter length and sample and light source is 1.5 centimetres; Measure gained sample and x value, y value and the brightness value of light source irradiation after 180 hours according to the color coordinate metering system of CIE1931, the result is listed as table 4-2:
Table 4-2
Figure A20071014135200331
Table 4-2 result show, to be that the brightness decay of slurry is several reach 50% performance compared to hydrocarbon, and the present invention uses and contains the prepared wavelength conversion coating of carbon-fluorine bond in the adhesive agent, even after 180 hours, still can provide the brightness of working as with initial phase in the light source irradiation.
III. other adhesive agent solution
(Tetraethoxysilane TEOS), adds 10 MTESs (Methyltriethoxysilane, MTEOS)) that restrain, 3 alcohol that restrain, 2 deionized waters that restrain, reaches 1 milliliter of 1% hydrochloric acid (HCl) aqueous solution to get 10 tetraethoxysilanes that restrain.At room temperature stir 30 minutes to homogeneous phase.In this inorganic aqueous solution, add 8 gram phosphor powders again, stirred 60 minutes, stir the back, stirred 30 minutes with magnetite again, obtain a slurry with ultrasonic concussion 10 minutes with magnetite.
According to the described mode of above-mentioned II part, above-mentioned slurry is coated on the PET base material of 100 microns of thickness.PET base material through coating is to place 100 ℃ of baking ovens dry 60 minutes, and take out the cooling back.
Then use luminance test method I, wherein sample rest area size is that the distance between 5 cm diameters (19.6 square centimeters) and sample and light source is 2 centimetres; Measure x value, y value and the brightness value of gained sample according to the color coordinate metering system of CIE1931, the result is listed as showing 4-3:
Table 4-3
The adhesive agent kind CIEx CIEy Brightness (cd/M 2)
Inorganic adhesive agent 0.2728 0.3352 2673
Embodiment 5
Adopt luminance test method II, under the condition of same pipe voltage, electric current and metering system, the performance of traditional C CFL module and embodiment 2 prepared acryl substrate samples compared, comparative result as table 5-1 with to show 5-2 listed:
Table 5-1
Project/specification value CCFL Diffuser plate under the CCFL+ Diffuser plate+BEFIII under the CCFL+ Diffuser plate+BEFIII+DBEFD under the CCFL+
The center briliancy 4578 5928 8363 5729
Average luminance (81 point) 4578.7 5811.7 8102.3 5540.7
X colourity 0.2467 0.2489 0 0.2591
Y colourity 0.2212 0.2244 0 0.2453
All spend together (9 point) 94％ 95％ 93％ 94％
Table 5-2
Project/specification value Conversion coating Conversion coating+following diffuser plate Conversion coating+following diffuser plate+BEFIII Conversion coating+following diffuser plate+BEFIII+DBEFD
The center briliancy 6376 8338 11720 8066
Average luminance (81 point) 6304.7 8218.6 11464.4 7863.2
X colourity 0.2742 0.2762 0.2813 0.2909
Y colourity 0.3265 0.3279 0.3362 0.3481
All spend together (9 point) 92％ 92％ 91％ 93％
The above results shows that the performance of this wavelength conversion coating is excellent than traditional C CFL person.
Then, adopt luminance test method II, gained acryl substrate sample (promptly showing listed " conversion coating+following diffuser plate " person of 5-2) is shone in this UVc module for a long time, its color coordinate and brightness change as table 6 and shown in Figure 14; Wherein, under each lights a lamp (irradiation) time, get two groups of these identical acryl substrate samples respectively and carry out luminance test twice, result of the test is divided into the result of listed sample A and sample B in the table 6.This result shows that after long-time irradiation wavelength conversion coating of the present invention still can provide suitable brightness.
Table 6
Embodiment 6 (ultraviolet wavelength blocks the benefit of coating)
20 gram adhesive agent solution A and 20 gram phosphor body powder are loaded on 50 milliliters seal in the vial and stirred 10 minutes, stir the back and shook 10 minutes with ultrasonic with magnetite.This slurry is coated the quartz surfaces of 10 centimetres of wide 10 centimeter length with the scraper rubbing method, and scraper gap is 50 microns, and coating speed is 10 meters/minute.Through the coating quartz placed the ventilating air air dry 3 minutes, this condition make coating layer thickness be about 17 to 20 microns.This is not for having the wavelength conversion coating sample that ultraviolet wavelength blocks coating.
Another wavelength conversion coating sample is handled in the same manner, just quartz surfaces is in advance to scrape nano zinc oxide material (the Australian Advanced Nanotechnology manufacturing of the excellent rubbing method of coiling (RDS numbering 06) coating one deck tool block ultraviolet function, model NanoZ), coating speed is 10 meters/minute, and coating was placed in 100 ℃ of hot-air ovens dry 30 minutes.
Then use luminance test method I, wherein sample rest area size is that the distance between 20 centimetres wide of 30 centimeter length and sample and light source is 2 centimetres; Measure x value, y value and the brightness value of gained sample according to the color coordinate metering system of CIE1931, the result is shown in table 6 and Figure 15 A (no ultraviolet wavelength blocks coating) and Figure 15 B (the tool ultraviolet wavelength blocks coating):
Table 7
CIEx CIEy Brightness (cd/M 2)
No ultraviolet wavelength blocks coating 0.289 0.344 3339
The tool ultraviolet wavelength blocks coating 0.294 0.353 3535
By Figure 15 A and Figure 15 B more as can be known, when ultraviolet wavelength not being set blocking coating, illuminating module is still sewed on a small quantity and is not used complete ultraviolet light UVc wave band, and unemployed ultraviolet light UV AWave band and UV BWave band; And when ultraviolet wavelength being set blocking coating, ultraviolet light UVc wave band, UV AWave band and UV BWave band is all blocked.In addition, as shown in Table 7, ultraviolet wavelength blocks the use of coating, does not influence the usefulness of illuminating module in fact.
Embodiment 7 (ultraviolet wavelength blocks the benefit of coating)
As embodiment 6, but with PET (polyethylene terephthalate) is base material, and measure the ultraviolet light penetration, as Figure 16 A, Figure 16 B, the former does not penetrate spectrogram for the ultraviolet light that ultraviolet wavelength blocks the illuminating module of coating is set, the latter is provided with the ultraviolet light that ultraviolet wavelength blocks the illuminating module of coating to penetrate spectrogram, and the frame of broken lines place of rising is ultraviolet light UVc wave band and UV among the figure BThe wavelength of wave band.Comparison diagram 16A and Figure 16 B when ultraviolet wavelength being set blocking coating, almost can block the leakage of ultraviolet light as can be known fully.
Embodiment 8(benefit of mixed light)
Two groups of structures as shown in Figure 3A are provided, and wherein, first group the first wavelength conversion coating is identical with the second wavelength conversion coating, and second group the first wavelength conversion coating is then different with the second wavelength conversion coating.Employed adhesive agent solution is the adhesive agent solution A, and employed phosphor body powder is the product of Japanese Kasei company.
First group first wavelength conversion coating and second wavelength conversion coating system obtain in the following manner.With the phosphor body powder (calling " R phosphor body powder " in the following text) that excited by UVc can to disengage red visible light, the phosphor body powder (calling " G phosphor body powder " in the following text) that excited by UVc can to disengage green visible light and the phosphor body powder (calling " B phosphor body powder " in the following text) that excited by UVc can to disengage blue visible light, mixing with 4.4: 1.6: 4.0 ratios provides a phosphor body mixture of powders.This phosphor body mixture of powders poured into be loaded in 50 milliliters of 10 g of adhesive agent solution A of sealing in the vial, and stirred 10 minutes, with ultrasonic concussion 10 minutes, provide a slurry again with magnetite.The PET base material (100 microns of thickness) of 10 centimetres of wide 15 centimeter length is adsorbed on the vacuum suction platform, this slurry of gained is coated on this PET base material with the scraper rubbing method.Wherein, scraper gap is that 50 microns and coating speed are 10 meters/minute.After, will PET base material be positioned in the ventilating air air dry 3 minutes through applying, the gained coating layer thickness is about 17 to 20 microns.
The preparation of the first wavelength conversion coating of second group of structure is as first group of structure, but the slurry that is adopted is to going into resultant person in 6.4 g the adhesive agent solution A via the phosphor body mixture of powders that 6.4 g are mixed with 4.9: 1.5 ratio by R phosphor body powder and G phosphor body powder.
The preparation of the second wavelength conversion coating of second group of structure also as first group of structure, but adopt by 10 g of B phosphor body powder mix with 10 g of adhesive agent solution A and must slurry, and coat on the PET base material of 225 microns of thickness.
The PET base material that respectively the above-mentioned two groups PET base materials with first wavelength conversion coating is arranged on the opening of two groups of frameworks and will has second a wavelength conversion coating is arranged on the madial wall of two groups of frameworks.Afterwards, measure the optical characteristics matter of two groups of structures respectively, the result is as shown in table 8:
Table 8
CIEx CIEy Brightness (cd/M 2)
First group 0.2471 0.2285 3100
Second group 0.2480 0.2243 3300
Table 8 result shows that second group of brightness value that is provided promotes about 5 to 6% than first group.
The various embodiments described above and aspect only are illustrative principle of the present invention and effect thereof, and explain technical characterictic of the present invention, but not are used to limit protection category of the present invention, for example the shape of the element of each shown in the accompanying drawing or form and unrestricted the present invention.Any personage who is familiar with present technique person all can be under the situation of know-why of the present invention and spirit, can unlabored change or the arrangement of the isotropism scope that all belongs to the present invention and advocated.Therefore, the scope of the present invention should be listed as appending claims.

Claims (58)

1. Wavelength transformational structure, it comprises:
One base material; And
One wavelength conversion coating, it is positioned on this base material and comprises:
(a) a phosphor body powder that excited by UVc; And
(b) an anti-UVc adhesive agent;
Wherein the thickness of this conversion coating is 2 to 10 times of phosphor body powder average grain diameter, and this phosphor body powder meets following at least one condition in the content of this conversion coating:
(i) percent by volume of phosphor body powder in the wavelength conversion coating is 30% to 85%, is benchmark with the cumulative volume of phosphor body powder and adhesive agent; And
(ii) the weight ratio of phosphor body powder and adhesive agent is 1: 1 to 20: 1.
2. Wavelength transformational structure as claimed in claim 1 is characterized in that, the thickness of this conversion coating is 3 to 5 times of phosphor body powder average grain diameter.
3. Wavelength transformational structure as claimed in claim 1 is characterized in that, the percent by volume of this phosphor body powder in conversion coating is 50% to 70%.
4. Wavelength transformational structure as claimed in claim 1 is characterized in that, this phosphor body powder is excited by the UVc light of wavelength 200 to 280nm.
5. Wavelength transformational structure as claimed in claim 1 is characterized in that, this phosphor body powder is excited by the UVc light of wavelength 250 to 260nm.
6. Wavelength transformational structure as claimed in claim 1 is characterized in that, this phosphor body powder is excited by the UVc light of wavelength 253.7nm.
7. Wavelength transformational structure as claimed in claim 1 is characterized in that, this phosphor body powder is excited by UVc and emit visible light.
8. Wavelength transformational structure as claimed in claim 1 is characterized in that, this phosphor body powder is excited by UVc and emit white light.
9. Wavelength transformational structure as claimed in claim 1 is characterized in that, the particle diameter of this phosphor body powder distributes and comprises at least two kinds of particle diameters distributions, and first kind of particle diameter distributed area is at 1 to 10 micron, and second kind of particle diameter is distributed in 1 to 1000 nanometer.
10. Wavelength transformational structure as claimed in claim 1 is characterized in that, this adhesive agent is a giant molecule structure, and at least one of its repetitive is to comprise the chemical bond of a part bond energy greater than 113kcal/mol.
11. Wavelength transformational structure as claimed in claim 1, it is characterized in that this adhesive agent is to be selected from following group: polytetrafluoroethylene (PTFE), polyvinylidene fluoride, polyvinylidene fluoride-hexafluoropropene, ethylene-tetrafluoroethylene copolymer, fluorinated ethylene propylene copolymer, perfluor alcoxyl, fluorubber, fluoroelastomer, non-crystalline type fluorine macromolecule, silicon rubber, polysiloxanes and combination thereof.
12. Wavelength transformational structure as claimed in claim 1 is characterized in that, this adhesive agent is one to contain the giant molecule of carbon-fluorine bond.
13. Wavelength transformational structure as claimed in claim 1 is characterized in that, this conversion coating also comprises the composition that is selected from following group: stabilizing agent, absorbent, blocking agent and combination thereof.
14. Wavelength transformational structure as claimed in claim 13 is characterized in that, this stabilizing agent is a hindered amine.
15. Wavelength transformational structure as claimed in claim 13 is characterized in that, this absorbent is to be selected from following group: diphenylketone, BTA and combination thereof.
16. Wavelength transformational structure as claimed in claim 13 is characterized in that, this blocking agent is a metal oxide.
17. Wavelength transformational structure as claimed in claim 13 is characterized in that, this blocking agent is to be selected from following group: titanium dioxide, zinc oxide, aluminium oxide and combination thereof.
18. Wavelength transformational structure as claimed in claim 16 is characterized in that, this metal oxide is to have nano-scale.
19. Wavelength transformational structure as claimed in claim 1 is characterized in that, this base material is a transparent base.
20. Wavelength transformational structure as claimed in claim 19, it is characterized in that this transparent base is one to comprise transparent film layer or the thin slice that is selected from following group: PET, TAC, PEN, PES, PVDF, PE-PO, PP-PE, aPP, iPP, functionalised polyolefin, LLDPE-g-MA, glass, quartz, PMMA, PS, MS, PC, light-permeable fabric and combination thereof.
21. Wavelength transformational structure as claimed in claim 1 is characterized in that, the opposite side that this base material is covered with wavelength conversion coating side has optics enhancement structure.
22. Wavelength transformational structure as claimed in claim 21 is characterized in that, it is prism structure or micrograined texture that this optics is promoted structure.
23. Wavelength transformational structure as claimed in claim 19, it is characterized in that this base material is that a clear PET rete is bonding on the composite construction that is combined on a glass flake, quartzy thin slice, PMMA thin slice, MS thin slice, PC thin slice or the light-permeable fabric with the macromolecule pressure-sensing glue.
24. Wavelength transformational structure as claimed in claim 23 is characterized in that, another PET film is bonding on the another side of this PMMA, MS or PC thin slice with the macromolecule pressure-sensing glue.
25. Wavelength transformational structure as claimed in claim 1 is characterized in that, further comprises the optical material that is selected from following group: diffuser plate, diffusion barrier, brightness enhancement film, prism plate, reflective brightness enhancement film, Polarizer, convex lens sheet and combination thereof.
26. Wavelength transformational structure as claimed in claim 1 is characterized in that, also comprises a UV barrier layer.
27. Wavelength transformational structure as claimed in claim 26 is characterized in that, this UV barrier layer is to comprise the composition that is selected from following group: stabilizing agent, absorbent, blocking agent and combination thereof.
28. Wavelength transformational structure as claimed in claim 27 is characterized in that, this blocking agent is a metal oxide.
29. Wavelength transformational structure as claimed in claim 27 is characterized in that, this blocking agent is to be selected from following group: titanium dioxide, zinc oxide, aluminium oxide and combination thereof.
30. Wavelength transformational structure as claimed in claim 28 is characterized in that, this metal oxide is to have nano-scale.
31. a method of making Wavelength transformational structure, it comprises:
One base material is provided;
Apply a slurry at this substrate surface, it is to place a storage tank and comprise:
(a) a phosphor body powder that excited by UVc;
(b) an anti-UVc adhesive agent; And
(c) organic solvent,
Wherein, the weight ratio of this phosphor body powder and this adhesive agent is 1: 1 to 20: 1; And
The dry base material that is somebody's turn to do through applying.
32. method as claimed in claim 31 is characterized in that, keeps slurry in this storage tank in state of disturbance in this coating step.
33. method as claimed in claim 31 is characterized in that, the weight ratio of this phosphor body powder and this adhesive agent is 2.5: 1 to 10: 1.
34. method as claimed in claim 31 is characterized in that, the weight ratio of this phosphor body powder and this adhesive agent is 3: 1 to 6: 1.
35. method as claimed in claim 31 is characterized in that, this phosphor body powder is excited by the UVc light of wavelength 200 to 280nm.
36. method as claimed in claim 31 is characterized in that, this phosphor body powder is excited by the UVc light of wavelength 250 to 260nm.
37. method as claimed in claim 31 is characterized in that, this phosphor body powder is excited by the UVc light of wavelength 253.7nm.
38. method as claimed in claim 31 is characterized in that, this phosphor body powder is excited by UVc and emit visible light.
39. method as claimed in claim 31 is characterized in that, this phosphor body powder is excited by UVc and emit white light.
40. method as claimed in claim 31 is characterized in that, the particle diameter of this phosphor body powder distributes and comprises at least two kinds of particle diameters distributions, and first kind of particle diameter distributed area is at 1 to 10 micron, and second kind of particle diameter is distributed in 1 to 1000 nanometer.
41. method as claimed in claim 31 is characterized in that, this adhesive agent is a giant molecule structure, and at least one of its repetitive is to comprise the chemical bond of a part bond energy greater than 113kcal/mol.
42. method as claimed in claim 31, it is characterized in that this adhesive agent is to be selected from following group: polytetrafluoroethylene (PTFE), polyvinylidene fluoride, polyvinylidene fluoride-hexafluoropropene, ethylene-tetrafluoroethylene copolymer, fluorinated ethylene propylene copolymer, perfluor alcoxyl, fluorubber, fluoroelastomer, non-crystalline type fluorine macromolecule, silicon rubber, polysiloxanes and combination thereof.
43. method as claimed in claim 31 is characterized in that, this adhesive agent is one to contain the giant molecule of carbon-fluorine bond.
44. method as claimed in claim 31 is characterized in that, this organic solvent is to be selected from following group: C 3-C 4Ketone, the C that replaces through one or more halogen 1-C 4Paraffinic, C 5-C 7Paraffinic, C 5-C 6Naphthenic, C 1-C 4Alkane alcohols, C 2-C 4Ethers, ethyl acetate, benzene, toluene, acetonitrile, oxolane, benzinum, the plain solvent of fluorine and combination thereof.
45. method as claimed in claim 44 is characterized in that, this organic solvent is to be selected from following group: C 3-C 4Ketone, the C that replaces through one or more halogen 1-C 4Paraffinic, C 5-C 7Paraffinic, C 5-C 6Naphthenic, acetonitrile and combination thereof.
46. method as claimed in claim 44 is characterized in that, this organic solvent is to be selected from following group: C 1-C 4Alkane alcohols, C 2-C 4Ethers, ethyl acetate, benzene, toluene, oxolane, benzinum and combination thereof.
47. method as claimed in claim 44 is characterized in that, this organic solvent is to be selected from following group: toluene, MEK, ethyl acetate, 1,2-dichloroethanes and combination thereof.
48. method as claimed in claim 31 is characterized in that, said composition comprises the composition that is selected from following group that total amount is no more than its gross weight 10 weight % in addition: stabilizing agent, absorbent, blocking agent and combination thereof.
49. method as claimed in claim 48 is characterized in that, this stabilizing agent is a hindered amine.
50. method as claimed in claim 48 is characterized in that, this absorbent is to be selected from following group: diphenylketone, BTA and combination thereof.
51. method as claimed in claim 48 is characterized in that, this blocking agent is a metal oxide.
52. method as claimed in claim 48 is characterized in that, this blocking agent is to be selected from following group: aluminium oxide, titanium dioxide, zinc oxide and combination thereof.
53. method as claimed in claim 51 is characterized in that, this metal oxide is to have nano-scale.
54. method as claimed in claim 32, it is characterized in that, this state of disturbance be by this slurry is bestowed mechanical agitation, homogeneous stir, mixing, twin shaft stirs, three cylinders stir, planetary stirring or pulse pressurization, reach in slurry, to form turbulent flow.
55. method as claimed in claim 32 is characterized in that, this state of disturbance is by this slurry being bestowed the pulse pressurization, being reached to form turbulent flow in slurry.
56. method as claimed in claim 31, it is characterized in that this coating is to carry out in the mode that is selected from following group: dip coating, scraper type rubbing method, spraying process, the rotary method, extrusion coated method, curtain type rubbing method, notch board of being coated with are coated with modulus method, and volume to volume rubbing method.
57. method as claimed in claim 31 is characterized in that, be at this coating step by the slurry in this storage tank being bestowed pulse pressurization keeping this slurry in state of disturbance, and carry out this coating with extrusion coated method or scraper type rubbing method.
58. method as claimed in claim 31 is characterized in that, this drying is to carry out with heat drying or ventilation drying mode.
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