CN102983250B - Silica-gel lens and preparation method thereof, containing its LED - Google Patents
Silica-gel lens and preparation method thereof, containing its LED Download PDFInfo
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- CN102983250B CN102983250B CN201210560680.3A CN201210560680A CN102983250B CN 102983250 B CN102983250 B CN 102983250B CN 201210560680 A CN201210560680 A CN 201210560680A CN 102983250 B CN102983250 B CN 102983250B
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- quantum dot
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title claims abstract description 140
- 239000000741 silica gel Substances 0.000 title claims abstract description 134
- 229910002027 silica gel Inorganic materials 0.000 title claims abstract description 134
- 229960001866 silicon dioxide Drugs 0.000 title claims abstract description 134
- 238000002360 preparation method Methods 0.000 title claims abstract description 18
- 239000000463 material Substances 0.000 claims abstract description 98
- 239000002096 quantum dot Substances 0.000 claims abstract description 39
- 239000004815 dispersion polymer Substances 0.000 claims abstract description 31
- 239000000843 powder Substances 0.000 claims description 27
- 238000004806 packaging method and process Methods 0.000 claims description 26
- 150000001875 compounds Chemical class 0.000 claims description 21
- UHYPYGJEEGLRJD-UHFFFAOYSA-N cadmium(2+);selenium(2-) Chemical compound [Se-2].[Cd+2] UHYPYGJEEGLRJD-UHFFFAOYSA-N 0.000 claims description 13
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims description 12
- 229920005989 resin Polymers 0.000 claims description 12
- 239000011347 resin Substances 0.000 claims description 12
- 125000005375 organosiloxane group Chemical group 0.000 claims description 9
- 239000004925 Acrylic resin Substances 0.000 claims description 8
- 229920000178 Acrylic resin Polymers 0.000 claims description 8
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 8
- 238000006116 polymerization reaction Methods 0.000 claims description 7
- 239000003822 epoxy resin Substances 0.000 claims description 6
- 229920000647 polyepoxide Polymers 0.000 claims description 6
- 229920002635 polyurethane Polymers 0.000 claims description 6
- 239000004814 polyurethane Substances 0.000 claims description 6
- 229910004613 CdTe Inorganic materials 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- SBIBMFFZSBJNJF-UHFFFAOYSA-N selenium;zinc Chemical compound [Se]=[Zn] SBIBMFFZSBJNJF-UHFFFAOYSA-N 0.000 claims description 4
- 229910015808 BaTe Inorganic materials 0.000 claims description 3
- 229910004813 CaTe Inorganic materials 0.000 claims description 3
- 229910001218 Gallium arsenide Inorganic materials 0.000 claims description 3
- 229910000673 Indium arsenide Inorganic materials 0.000 claims description 3
- 229910017680 MgTe Inorganic materials 0.000 claims description 3
- 229910004411 SrTe Inorganic materials 0.000 claims description 3
- 229910007709 ZnTe Inorganic materials 0.000 claims description 3
- RPQDHPTXJYYUPQ-UHFFFAOYSA-N indium arsenide Chemical compound [In]#[As] RPQDHPTXJYYUPQ-UHFFFAOYSA-N 0.000 claims description 3
- 239000002159 nanocrystal Substances 0.000 claims description 3
- 230000000737 periodic effect Effects 0.000 claims description 3
- 238000001228 spectrum Methods 0.000 abstract description 11
- 238000010521 absorption reaction Methods 0.000 abstract description 7
- 238000013461 design Methods 0.000 abstract description 3
- 238000009826 distribution Methods 0.000 abstract description 3
- 239000003292 glue Substances 0.000 description 27
- 238000003756 stirring Methods 0.000 description 12
- 238000000034 method Methods 0.000 description 11
- 238000002156 mixing Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- 238000009877 rendering Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 6
- 229920002050 silicone resin Polymers 0.000 description 6
- -1 dimethyl siloxane Chemical class 0.000 description 5
- 239000006185 dispersion Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 230000004907 flux Effects 0.000 description 3
- 238000004020 luminiscence type Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 229920001296 polysiloxane Polymers 0.000 description 3
- 229920005749 polyurethane resin Polymers 0.000 description 3
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 125000000217 alkyl group Chemical group 0.000 description 2
- 125000006297 carbonyl amino group Chemical group [H]N([*:2])C([*:1])=O 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000008034 disappearance Effects 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- LNTHITQWFMADLM-UHFFFAOYSA-N gallic acid Chemical compound OC(=O)C1=CC(O)=C(O)C(O)=C1 LNTHITQWFMADLM-UHFFFAOYSA-N 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229920002521 macromolecule Polymers 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- KXDHJXZQYSOELW-UHFFFAOYSA-N Carbamic acid Chemical group NC(O)=O KXDHJXZQYSOELW-UHFFFAOYSA-N 0.000 description 1
- 229910000530 Gallium indium arsenide Inorganic materials 0.000 description 1
- 238000000862 absorption spectrum Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 239000011258 core-shell material Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 229940074391 gallic acid Drugs 0.000 description 1
- 235000004515 gallic acid Nutrition 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
- 230000001795 light effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012946 outsourcing Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 229920005573 silicon-containing polymer Polymers 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
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Abstract
The invention provides a kind of silica-gel lens and preparation method thereof, LED containing it.This silica-gel lens comprises quantum dot polymer dispersion, fluorescent material and the silica gel that mass ratio is 1:3 ~ 7:40 ~ 50, and in quantum dot polymer dispersion, the mass percentage of quanta point material is 0.01 ~ 10%.Because quanta point material has exciting light spectrum width and spectrum continuous distribution, and the emission wavelength of quantum dot can be controlled by grain-size size, therefore, the quanta point material of different-grain diameter can be selected according to design requirement; Meanwhile, the spectrum half-peak breadth of quanta point material is narrower, does not have self-absorption or has low self-absorption characteristic, can improve luminous efficiency and luminous mass preferably, thus effectively can improve the light efficiency of silica-gel lens.
Description
Technical field
The present invention relates to field of LED illumination, in particular to a kind of silica-gel lens and preparation method thereof, containing its LED.
Background technology
At present, the technology path realizing white light LEDs can be divided into two large classes: the first kind is that chip+fluorescence class combinations of substances emits white light, and comprises blue chip+fluorescent material, ultraviolet chip+fluorescent material, bluish-green chip+fluorescent material, purple light chip+fluorescent material; Equations of The Second Kind is that chip self or combination emit white light, comprise ZnSe be substrate LED directly emits white light, two or more chip emits white light, same substrate forms multiple luminescent layer.
There is green glow and the low and problem of poor stability of ruddiness light extraction efficiency in the technology path that pure chip portfolio emits white light.In green emitting phosphor, the content of indium is difficult to improve, so chip portfolio even light mixing is not good to cause the inefficient main cause of green luminescence to be.Therefore, current mainstream technology route is that chip and fluorescence class combinations of substances emit white light.
Although chip and fluorescence class combinations of substances are current main technological route, but still need the problem solving following two aspects: one is blue yellow light LED disappearance red light portion, is thus difficult to send to have high-color rendering white-light; Two is that ultraviolet leds adds RGB fluorescent material and can produce good color rendering, but the efficiency of fluorescent material is not high.In addition, the technology of existing LED is packaged together at phosphor powder layer and blue chip, in use procedure, the heating of chip and the heating of phosphor powder layer be gathered together cause chip and fluorescent material working temperature too high, and then reduce the efficiency of chip and fluorescent material, cause light efficiency to reduce.
Summary of the invention
The present invention aims to provide a kind of silica-gel lens and preparation method thereof, LED containing it, to solve the problem that in prior art, LED light efficiency is low.
To achieve these goals, according to an aspect of the present invention, provide a kind of silica-gel lens, silica-gel lens comprises quantum dot polymer dispersion, fluorescent material and the silica gel that mass ratio is 1:3 ~ 7:40 ~ 50, and in quantum dot polymer dispersion, the mass percentage of quanta point material is 0.01 ~ 10%.
Further, above-mentioned quanta point material be selected from the second compound that the element in compound, group-III and the Vth main group that the element in the periodic table of elements in the IIth main group and the VIth main group formed formed any one, the nucleocapsid structure compound of multiple coated formation in the first compound and/or the second compound or Doped nanocrystal, the first compound comprises: CdSe, CdTe, MgS, MgSe, MgTe, CaS, CaSe, CaTe, SrS, SrSe, SrTe, BaS, BaSe, BaTe, ZnS, ZnSe, ZnTe and CdS; Second compound comprises: GaN, GaP, GaAs, InN, InP and InAs.
Further, above-mentioned fluorescent material is YAG fluorescent powder.
Further, above-mentioned quanta point material is dispersed in silica gel.
Further, above-mentioned silica-gel lens comprises the silica gel part with fluorescent material and the inner surface being positioned at silica gel part or outer surface and has the quanta point material layer of quantum dot polymer dispersion.
Further, above-mentioned silica-gel lens is hemispheric bowl structure.
According to a further aspect in the invention, additionally provide a kind of LED, this LED comprises one or more packaging body, and packaging body comprises: base plate for packaging; Encapsulating housing, one end has opening, and openend is fixed on base plate for packaging; LED chip, is fixed in region that base plate for packaging is surrounded by the openend of encapsulating housing; LED-baseplate, the base plate for packaging of one or more packaging body is fixed in LED-baseplate away from the side of LED chip; Above-mentioned LED also comprises silica-gel lens, this silica-gel lens is above-mentioned silica-gel lens, one end of silica-gel lens has opening, and openend is fixed in LED-baseplate, packaging body is arranged in region that LED-baseplate is surrounded by the openend of silica-gel lens, and and has gap between the inwall of silica-gel lens.
Further, there is between above-mentioned silica-gel lens and LED chip the distance of 10 ~ 50mm.
According to another aspect of the invention, additionally provide a kind of preparation method of silica-gel lens, above-mentioned preparation method comprises: steps A, be the quantum dot polymer dispersion of 1:3 ~ 7:40 ~ 50 by mass ratio, fluorescent material and silica gel is mixed to form mixed glue; Step B, mixed glue to be inserted in the mould of silica-gel lens, and be evacuated to without macroscopic bubble; And step C, the mixed glue injection mo(u)lding through step B process is obtained silica-gel lens.
Further, above-mentioned quantum dot polymer dispersion is be dispersed with the acrylic resin of quanta point material, organosiloxane resins, polymerization of acrylic modified polyurethane, acrylate modified organic silicone resin or epoxy resin.
Further, the temperature of the mixed system that quantum dot polymer dispersion, fluorescent material and silica gel are formed in the mixed process of above-mentioned steps A is controlled lower than 40 DEG C.
Further, the mixed glue dry 1 ~ 60min at 80 ~ 200 DEG C vacuumizing will through in above-mentioned steps B.
According to another aspect of the invention, additionally provide a kind of preparation method of silica-gel lens, above-mentioned preparation method comprises: step a, fluorescent material and silica gel are prepared into fluorescent powder silica gel lens; Step b, form quantum dot material layer at the inner surface of fluorescent powder silica gel lens or outer surface quantum dot polymer dispersion, obtain silica-gel lens.
Further, above-mentioned quantum dot polymer dispersion is be dispersed with the acrylic resin of quanta point material, organosiloxane resins, polymerization of acrylic modified polyurethane, acrylate modified organic silicone resin or epoxy resin.
Apply technical scheme of the present invention, because quanta point material has exciting light spectrum width and the feature of spectrum continuous distribution, because the emission wavelength of quantum dot is different with the change of particle size, therefore, the quanta point material of different-grain diameter can be selected according to design requirement; Meanwhile, the spectrum half-peak breadth of quanta point material is narrower, does not have self-absorption or has low self-absorption characteristic, can improve luminous efficiency and luminous mass preferably, thus effectively can improve the light efficiency of silica-gel lens.In this silica-gel lens, quanta point material not only can be dispersed in silica gel with the form of dispersion, but also internal layer can be adopted to apply the top layer being coated in silica-gel lens with the flexi mode of outer coating, is convenient to the processing of this silica-gel lens.
Accompanying drawing explanation
The Figure of description forming a application's part is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 shows the structural representation of the LED according to a kind of preferred embodiment of the present invention;
Fig. 2 shows according to the spectrogram of embodiments of the invention 1 to 4 with comparative example 1; And
Fig. 3 shows according to the spectrogram of embodiments of the invention 4 with comparative example 1.
Embodiment
It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and describe the present invention in detail in conjunction with the embodiments.
In a kind of typical execution mode of the present invention, provide a kind of silica-gel lens, this silica-gel lens comprises quantum dot polymer dispersion, fluorescent material and the silica gel that mass ratio is 1:3 ~ 7:40 ~ 50, and in quantum dot polymer dispersion, the mass percentage of quanta point material is 0.01 ~ 10%.
Because quanta point material has exciting light spectrum width and spectrum continuous distribution, because the emission wavelength of quantum dot is different with the change of particle size, therefore, the quanta point material of different-grain diameter can be selected according to design requirement; Meanwhile, the spectrum half-peak breadth of quanta point material is narrower, does not have self-absorption or has low self-absorption characteristic, can improve luminous efficiency and luminous mass preferably, thus effectively can improve the light efficiency of silica-gel lens.In this silica-gel lens, quanta point material not only can be dispersed in silica gel with the form of dispersion, but also internal layer can be adopted to apply the top layer being coated in silica-gel lens with the flexi mode of outer coating, is convenient to the processing of this silica-gel lens.
Above-mentioned quantum dot polymer dispersion is the high molecular polymer that inner dispersion has quanta point material, and in quantum dot polymer dispersion, the content of quanta point material adopts conventional ultra-violet absorption spectrum to test out absorption value, and calculate mass content according to Lambert-Beer's law.
In a kind of preferred embodiment of the present invention, above-mentioned quanta point material be selected from the second compound that the element in the first compound, group-III and the Vth main group that the element in the periodic table of elements in the IIth main group and the VIth main group formed formed any one, the nucleocapsid structure compound of multiple coated formation in the first compound and/or the second compound or Doped nanocrystal, the first compound comprises: CdSe, CdTe, MgS, MgSe, MgTe, CaS, CaSe, CaTe, SrS, SrSe, SrTe, BaS, BaSe, BaTe, ZnS, ZnSe, ZnTe and CdS; Second compound comprises: GaN, GaP, GaAs, InN, InP and InAs.
Quanta point material is generally nucleocapsid structure, core is the semiconductor substance (as CdSe, CdTe etc.) with high-luminous-efficiency, outsourcing one deck sulfide (as ZnS) forms CdSe/ZnS, CdTe/ZnS of nucleocapsid structure, further increase the luminous quantum efficiency of quanta point material, and the existence of outer sulfide drastically increases the photochemical stability of quanta point material.And, when employing YAG fluorescent powder, form silica-gel lens at the CdSe/ZnS quantum dot polymer dispersion of red band (between 600 ~ 635nm) containing emission wavelength together with silica gel, effectively can make up the ruddiness of blue yellow light LED disappearance, thus obtain the better white light of color rendering.Those skilled in the art can use the quantum dot polymer dispersion of the quanta point material containing some luminescence band and silica gel to be mixed to form silica-gel lens, and coordinate from the fluorescent material of different luminescence band the light obtaining respective color.
Fluorescent material used in the present invention comprises green emitting phosphor, red fluorescence powder and yellow fluorescent powder, adopt the fluorescent material of different colours can obtain the silica-gel lens of different glow color, the preferred fluorescent material of the present invention is YAG fluorescent powder, this YAG fluorescent powder is that product is commonly used in market, and through long-term development, there is good properties of product and stability, and the market price is also comparatively cheap, be applicable to large-scale mass production, coordinate with quantum dot of the present invention and silica gel and obtain a continuous print spectrum effects, and reach the light quality of high light effect and high color rendering index (CRI).
Quanta point material of the present invention is mainly in order to improve the light efficiency of the exciting light of silica-gel lens, and quanta point material the same with fluorescent material as silica gel can mix and be dispersed in silica-gel lens.In addition, quantum dot can also be dispersed in the silica-gel lens main body that fluorescent material and silica gel formed, and preferred silica-gel lens comprises the silica gel part 51 with fluorescent material and the inner surface being positioned at silica gel part 51 or outer surface and has the quanta point material layer 52 of above-mentioned quantum dot polymer dispersion.
In a kind of specific embodiment of the present invention, above-mentioned silica-gel lens is hemispheric bowl structure.
In the another kind of typical execution mode of the present invention, additionally provide a kind of LED, this LED comprises one or more packaging body and LED-baseplate 6, this packaging body comprises base plate for packaging 3, encapsulating housing 2 and LED chip 1, one end of encapsulating housing 2 has opening, and openend is fixed on base plate for packaging 3; LED chip 1 is fixed in region that base plate for packaging 3 is surrounded by the openend of encapsulating housing 2; The base plate for packaging 3 of one or more packaging body is fixed in LED-baseplate 6 away from the side of LED chip 1; LED also comprises silica-gel lens 5, this silica-gel lens 5 is above-mentioned silica-gel lens, one end of this silica-gel lens 5 has opening, and openend is fixed in LED-baseplate 6, packaging body is arranged in region that LED-baseplate 6 is surrounded by the openend of silica-gel lens 5, and and has gap between the inwall of silica-gel lens 5.
There is the LED of said structure, LED chip 1 to be still fixed on base plate for packaging 3 by adhesive glue 4 and to be encapsulated in encapsulating housing 2, using the silica-gel lens 5 containing fluorescent material as an independent accessory and LED chip 1 is mutually isolated is arranged in LED-baseplate 6, the shell of encapsulating housing 2 arranges silica-gel lens 5 of the present invention, the light transmission rate of silica-gel lens is higher, path changing is less, and light loss is less, effectively improves the optical uniformity of LED lamp.Define LED chip 1 to the remote excitation with its fluorescent material arranged at a distance, overcome fluorescent powder coating in prior art when LED chip 1 owing to exciting time the heat that produces be difficult to distribute and cause the problem that the useful life of LED is short and luminous efficiency is low, owing to adopting the technology of remote excitation fluorescent material, greatly reduce the working temperature of LED chip 1 and packaging body, thus slow down the aging speed of these materials to a great extent, and then extend the life-span of LED; And, avoid when to apply fluorescent material on LED chip 1 and cause the colour temperature inequality of LED to produce the drawback of hot spot because evenly coating cannot be accomplished; Reduce the impact of different B on the light-out effect of LED simultaneously, the repeatability of product and uniformity are strengthened; In addition, owing to having quanta point material in silica-gel lens 4, therefore its light efficiency is significantly improved.
Good light efficiency can be realized again in order to good radiating effect can be realized, there is between the silica-gel lens 5 of preferred above-mentioned LED and LED chip 1 distance of 10 ~ 50mm.
In another typical execution mode of the present invention, additionally provide a kind of preparation method of silica-gel lens, comprising: steps A, be the quantum dot polymer dispersion of 1:3 ~ 7:40 ~ 50 by mass ratio, fluorescent material and silica gel is mixed to form mixed glue; Step B, mixed glue to be inserted in the mould of silica-gel lens, and be evacuated to without macroscopic bubble; And step C, the mixed glue injection mo(u)lding through step B process is obtained silica-gel lens.
Process quantum dot polymer dispersion, fluorescent material and silica gel being mixed to form mixed glue can adopt magnetic agitation or churned mechanically mode, preferably adopts special mixing machine, thus accelerates the formation of mixed glue; Vacuumize after mixed glue is injected mould and bubble is wherein extracted out, avoid in silica-gel lens because the existence of bubble affects the light efficiency of silica-gel lens; Because the production efficiency of injection mo(u)lding is higher, therefore adopt the mode of injection mo(u)lding can realize the effect of batch making silica-gel lens.Certainly except adopting the mode of injection mo(u)lding, the present invention can also adopt the modes such as die cast conventional at present, silk screen printing and spraying to prepare the silica-gel lens of various shape.
In another preferred embodiment of the present invention, preferred quantum dots polymer dispersion is be dispersed with the acrylic resin of quanta point material, organosiloxane resins, polymerization of acrylic modified polyurethane, acrylate modified organic silicone resin or epoxy resin.
Aforesaid propylene esters of gallic acid resin refers to the general name with a family macromolecule material of acrylate group in molecular backbone structure, and its general structure is:
Wherein: R is alkyl, R
1for-H or-CH
3;
Above-mentioned organosiloxane resins is the polyorganosiloxane resin of other structures containing vinyl in dimethyl silicone polymer, dimethyl siloxane and methyl vinyl silicone copolymer, dimethyl siloxane and phenyl vinyl silicone copolymers or molecule.
Aforesaid propylene acid esters modified polyurethane resin refers to the general name with a family macromolecule material of acrylate group and carbamate groups in molecular structure, and its general structure is:
Wherein: R
1, R
2be alkyl, R
3for-H or-CH
3;
Aforesaid propylene acid esters modified organic silicone resin refers to the general name with the polysiloxane resin of acrylate group in molecular structure, and wherein the general structure of acrylate group is:
Wherein: R is polysiloxane, R
1for-H or-CH
3.
Above-mentioned acrylic resin, organosiloxane resins, polymerization of acrylic modified polyurethane, acrylate modified organic silicone resin and epoxy resin are that character is comparatively stable, the material of wide material sources, and the quantum effect that its dispersion as dispersion quanta point material neither affects quanta point material has good dispersiveness to quanta point material again.
In the preparation process of above-mentioned silica-gel lens, preferably control the temperature of the mixed system that quantum dot polymer dispersion, fluorescent material and silica gel are formed in the mixed process of above-mentioned steps A lower than 40 DEG C.The drawback that the temperature controlling mixed system causes mixing uneven lower than the slow solidification that 40 DEG C avoid silica gel in mixed glue process.
By the dry 1 ~ 180min at 80 ~ 200 DEG C of the mixed glue through vacuumizing in the step B of above-mentioned preparation method.The mixed glue formed at a lower temperature as between 40 ~ 50 DEG C time its complete curing time longer, can more than 10h be reached, in order to accelerate the solidification process of mixed glue, preferably solidify at 80 ~ 200 DEG C, when more than 150 DEG C, curing rate is obviously accelerated, and can realize solidifying completely within 10min.
In another typical execution mode of the present invention, additionally provide a kind of preparation method of silica-gel lens, comprise step a, fluorescent material and silica gel are prepared into fluorescent powder silica gel lens; Step b, form quantum dot material layer at the inner surface of fluorescent powder silica gel lens or outer surface quantum dot polymer dispersion, obtain silica-gel lens.Can adopt the current method preparing fluorescent powder silica gel lens that fluorescent material and silica gel are prepared into fluorescent powder silica gel lens, also the aforementioned method preparation preparing silica-gel lens can be adopted not contain the silica-gel lens of quanta point material, then on inner surface quantum dot polymer dispersion being directly coated in fluorescent powder silica gel lens or outer surface, manufacture method is simple, make efficiency is higher.
Quantum dot polymer dispersion coated in above-mentioned preparation method adopts the acrylic resin, organosiloxane resins, polymerization of acrylic modified polyurethane, acrylate modified organic silicone resin or the epoxy resin that are dispersed with quanta point material equally.
Below with reference to embodiment, further illustrate and adopt beneficial effect of the present invention.
Embodiment 1
Be that the YAG fluorescent powder of Y6BH-015 is mixed in 1.5g DOW CORNING optics base silica gel 6003 by 0.135g model, be that the mixing machine of DAC150.1FVZX stirs with the rotating speed of 3000r/min and continues within 40 seconds, to make fluorescent material be dispersed in silica gel for 5 times at every turn and form mixed glue by model, stir cooling and stir again after 30 seconds to keep temperature to solidify to prevent overheated silica gel lower than 40 DEG C next time at every turn.Above-mentioned mixed glue is injected mould, extremely without obvious bubble after vacuumizing; Then the mould being marked with mixed glue is placed in after 150 DEG C of baking boxs heat 30min and takes out, be down to the demoulding after room temperature until mould and take out fluorescent powder silica gel lens wherein.After completing, 0.2g is dispersed with the acrylate modified organic siliconresin { CH of emission wavelength at the nucleocapsid structure CdSe/ZnS quanta point material of 605nm
2=CHCOO [(CH
3)
2siO]
60oCCH=CH
2] be coated in the inner surface of fluorescent powder silica gel lens, wherein CdSe/ZnS quanta point material is at acrylate modified organic siliconresin { CH
2=CHCOO [(CH
3)
2siO]
60oCCH=CH
2] in mass percentage be 5%; Obtain the silica-gel lens of embodiment 1.
Embodiment 2
Be that the YAG fluorescent powder of Y6BH-015 is mixed in 1.5g DOW CORNING optics pole silica gel 6003 by 0.135g model, be that the mixing machine of DAC150.1FVZX stirs with the rotating speed of 3000r/min and continues within 40 seconds, to make fluorescent material be dispersed in silica gel for 5 times at every turn and form mixed glue by model, stir cooling and stir again after 30 seconds to keep temperature to solidify to prevent overheated silica gel lower than 40 DEG C next time at every turn.Above-mentioned mixed glue is injected mould, extremely without obvious bubble after vacuumizing; Then the mould being marked with mixed glue is placed in after 200 DEG C of baking boxs heat 1min and takes out, be down to the demoulding after room temperature until mould and take out fluorescent powder silica gel lens wherein.Organosiloxane resins { the CH of emission wavelength at the core-shell type CdSe/ZnS quanta point material of 616nm is dispersed with by being dispersed with 0.3g after completing
2=CH (CH
3)
2siO [(CH
2=CH) (CH
3) SiO]
5[(CH
3) SiO]
60(CH
3)
2siCH=CH
2] be coated in the outer surface of fluorescent powder silica gel lens, wherein CdSe/ZnS quanta point material is at organosiloxane resins { CH
2=CH (CH
3)
2siO [(CH
2=CH) (CH
3) SiO]
5[(CH
3) SiO]
60(CH
3)
2siCH=CH
2] in mass percentage be 0.01%; Obtain the silica-gel lens of embodiment 2.
Embodiment 3
0.15g is dispersed with the acrylic resin [CH of emission wavelength at the nucleocapsid structure CdSe/ZnS quanta point material of 635nm
2=CH-COO (CH
2)
20oOCCH=CH
2], 0.135g model is that the YAG fluorescent powder of Y6BH-015 is mixed in 1.5g DOW CORNING optics pole silica gel 6003, wherein CdSe/ZnS quanta point material is at acrylic resin [CH
2=CH-COO (CH
2)
20oOCCH=CH
2] in mass percentage be 10%; Be that the mixing machine of DAC150.1FVZX stirs with the rotating speed of 3000r/min and continues within 40 seconds, to make fluorescent material be dispersed in silica gel for 5 times at every turn and form mixed glue by model, stir cooling and stir again after 30 seconds to keep temperature to solidify to prevent overheated silica gel lower than 40 DEG C next time at every turn.Above-mentioned mixed glue is injected mould, extremely without obvious bubble after vacuumizing; Then the mould being marked with mixed glue is placed in after 80 DEG C of baking boxs heat 180min and takes out, be down to the demoulding after room temperature until mould and take out, obtain the silica-gel lens of embodiment 3.
Embodiment 4
0.2g is dispersed with the polymerization of acrylic modified polyurethane resin { CH of emission wavelength at the InGaAs quanta point material of 600nm
2=CHCOO (CH
2o)
30[CONH (C
6h
4) NHCOO (CH
2o)
30]
20oCCH=CH
2, 0.135g model is that the YAG fluorescent powder of YAG-04 is mixed in 1.5g DOW CORNING optics pole silica gel 6003, wherein CdSe/ZnS quanta point material is having acrylic acid modified polyurethane resin { CH
2=CHCOO (CH
2o)
30[CONH (C
6h
4) NHCOO (CH
2o)
30]
20oCCH=CH
2in mass percentage be 2%; Be that the mixing machine of DAC150.1FVZX stirs with the rotating speed of 3000r/min and continues within 40 seconds, to make fluorescent material be dispersed in silica gel for 5 times at every turn and form mixed glue by model, stir cooling and stir again after 30 seconds to keep temperature to solidify to prevent overheated silica gel lower than 40 DEG C next time at every turn.Above-mentioned mixed glue is injected mould, extremely without obvious bubble after vacuumizing; Then the mould being marked with mixed glue is placed in after 150 DEG C of baking boxs heat 30min and takes out, be down to the demoulding after room temperature until mould and take out, obtain the silica-gel lens of embodiment 4.Adopt model be HAAS-2000 spectral irradiance meter to the silica-gel lens of embodiment 1 to 4 and as a comparison case 1 and the XPE light-source encapsulation body of Ke Rui company of comparative example 2 test, test result is as shown in Figure 2 and Table 1.
Table 1
As can be seen from the data in table 1, compared with contrast sample 1, embodiment 1 and embodiment 2 are under close colour temperature, its luminous flux and color rendering index have lifting, and although luminous flux slightly declines in embodiment 3, its color rendering index can reach 90, improves more greatly its color developing.Compared with contrast sample 2, embodiment 4 is under close colour temperature, and luminous flux slightly promotes, but color rendering index has brought up to 87 from 79.5, improves more greatly its optical quality.From the spectrogram of Fig. 2 and Fig. 3, also can observe corresponding spectrum property improve.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. a silica-gel lens, it is characterized in that, described silica-gel lens comprises quantum dot polymer dispersion, fluorescent material and the silica gel that mass ratio is 1:3 ~ 7:40 ~ 50, and in described quantum dot polymer dispersion, the mass percentage of quanta point material is 0.01 ~ 10%; Described silica-gel lens comprises the silica gel part (51) with described fluorescent material and the inner surface being positioned at described silica gel part (51) or outer surface and has the quanta point material layer (52) of described quantum dot polymer dispersion.
2. silica-gel lens according to claim 1, it is characterized in that, described quanta point material be selected from the first compound that the element in the periodic table of elements in the IIth main group and the VIth main group formed any one, in the second compound of being formed of element in group-III and the Vth main group any one, the nucleocapsid structure compound of multiple coated formation in described first compound and/or described second compound or Doped nanocrystal
Described first compound comprises: CdSe, CdTe, MgS, MgSe, MgTe, CaS, CaSe, CaTe, SrS, SrSe, SrTe, BaS, BaSe, BaTe, ZnS, ZnSe, ZnTe and CdS;
Described second compound comprises: GaN, GaP, GaAs, InN, InP and InAs.
3. silica-gel lens according to claim 1, is characterized in that, described fluorescent material is YAG fluorescent powder.
4. silica-gel lens according to claim 1, is characterized in that, described silica-gel lens is hemispheric bowl structure.
5. a LED, is characterized in that, described LED comprises:
One or more packaging body, described packaging body comprises:
Base plate for packaging (3);
Encapsulating housing (2), one end has opening, and openend is fixed on described base plate for packaging (3);
LED chip (1), is fixed in region that described base plate for packaging (3) is surrounded by the openend of described encapsulating housing (2);
LED-baseplate (6), the base plate for packaging (3) of described one or more packaging body is fixed in described LED-baseplate (6) away from the side of described LED chip (1);
It is characterized in that, described LED also comprises silica-gel lens (5), described silica-gel lens (5) silica-gel lens according to any one of Claims 1-4, one end of described silica-gel lens (5) has opening, and openend is fixed in described LED-baseplate (6), described packaging body is arranged in region that described LED-baseplate (6) is surrounded by the openend of described silica-gel lens (5), and and has gap between the inwall of described silica-gel lens (5).
6. luminescent device according to claim 5, is characterized in that, has the distance of 10 ~ 50mm between described silica-gel lens (5) and described LED chip (1).
7. a preparation method for silica-gel lens, is characterized in that, described preparation method comprises:
Step a, fluorescent material and silica gel are prepared into fluorescent powder silica gel lens;
Step b, form quantum dot material layer at the inner surface of described fluorescent powder silica gel lens or outer surface quantum dot polymer dispersion, obtain described silica-gel lens, described silica-gel lens comprises quantum dot polymer dispersion, fluorescent material and the silica gel that mass ratio is 1:3 ~ 7:40 ~ 50, and in described quantum dot polymer dispersion, the mass percentage of quanta point material is 0.01 ~ 10%.
8. preparation method according to claim 7, it is characterized in that, described quantum dot polymer dispersion is be dispersed with the acrylic resin of quanta point material, organosiloxane resins, polymerization of acrylic modified polyurethane, acrylate modified organic siliconresin or epoxy resin.
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Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103681991A (en) * | 2013-12-20 | 2014-03-26 | 纳晶科技股份有限公司 | Silicone lens for LED (Light Emitting Diode) packaging and manufacturing method thereof |
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| CN104409612B (en) * | 2014-11-03 | 2017-06-16 | 东南大学 | The inorganic encapsulated method of the white light LED part based on quantum dot |
| CN105449078A (en) * | 2015-12-21 | 2016-03-30 | 华中科技大学 | White light LED and preparation method thereof |
| CN106784238A (en) * | 2016-11-30 | 2017-05-31 | 芜湖聚飞光电科技有限公司 | The preparation method of quantum dot lens-type direct LED backlight |
| CN107093661A (en) * | 2017-04-11 | 2017-08-25 | 安徽芯瑞达科技股份有限公司 | A kind of new optical lens of full-inorganic perovskite quanta point material thin film coated and preparation method thereof |
| CN107246563A (en) * | 2017-07-26 | 2017-10-13 | 合肥惠科金扬科技有限公司 | Quantum dot backlight module, display and quantum dot lens making methods |
| CN107783223B (en) * | 2017-09-27 | 2019-08-16 | 深圳Tcl新技术有限公司 | Backlight module and display device |
| CN108864384B (en) * | 2018-05-08 | 2020-09-15 | 纳晶科技股份有限公司 | Quantum dot dispersion resin molded body, quantum dot dispersion colloid, and light-emitting device |
| CN110579929A (en) * | 2018-06-11 | 2019-12-17 | 深圳Tcl新技术有限公司 | Laser projection television |
| CN110579930A (en) * | 2018-06-11 | 2019-12-17 | 深圳Tcl新技术有限公司 | Laser projection television |
| CN110579931A (en) * | 2018-06-11 | 2019-12-17 | 深圳Tcl新技术有限公司 | Laser projection television |
| CN111251526B (en) * | 2020-01-17 | 2023-03-31 | 深圳市宝利实业发展有限公司 | Liquid silica gel forming method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1812092A (en) * | 2004-12-10 | 2006-08-02 | 安捷伦科技有限公司 | Flash module with quantum dot light conversion |
| CN101289617A (en) * | 2008-06-16 | 2008-10-22 | 罗维鸿 | Composite material for white-light diode and inorganic fluorescent powder |
| CN101571242A (en) * | 2009-05-27 | 2009-11-04 | 中国计量学院 | White LED light-emitting device with blue chip doped with quantum dots and YAG fluorescent powder |
| CN102403426A (en) * | 2011-12-09 | 2012-04-04 | 江苏康纳思光电科技有限公司 | Method for manufacturing white light LED with wide color gamut |
| CN102661500A (en) * | 2012-04-18 | 2012-09-12 | 杭州纳晶照明技术有限公司 | Light emitting diode (LED) light source component and LED lamp provided with same |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100783251B1 (en) * | 2006-04-10 | 2007-12-06 | 삼성전기주식회사 | Multi-Layered White Light Emitting Diode Using Quantum Dots and Method of Preparing The Same |
-
2012
- 2012-12-20 CN CN201210560680.3A patent/CN102983250B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1812092A (en) * | 2004-12-10 | 2006-08-02 | 安捷伦科技有限公司 | Flash module with quantum dot light conversion |
| CN101289617A (en) * | 2008-06-16 | 2008-10-22 | 罗维鸿 | Composite material for white-light diode and inorganic fluorescent powder |
| CN101571242A (en) * | 2009-05-27 | 2009-11-04 | 中国计量学院 | White LED light-emitting device with blue chip doped with quantum dots and YAG fluorescent powder |
| CN102403426A (en) * | 2011-12-09 | 2012-04-04 | 江苏康纳思光电科技有限公司 | Method for manufacturing white light LED with wide color gamut |
| CN102661500A (en) * | 2012-04-18 | 2012-09-12 | 杭州纳晶照明技术有限公司 | Light emitting diode (LED) light source component and LED lamp provided with same |
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