CN104681696B - The preparation method of LED package syringe and LED package - Google Patents
The preparation method of LED package syringe and LED package Download PDFInfo
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- CN104681696B CN104681696B CN201410699822.3A CN201410699822A CN104681696B CN 104681696 B CN104681696 B CN 104681696B CN 201410699822 A CN201410699822 A CN 201410699822A CN 104681696 B CN104681696 B CN 104681696B
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- 238000002360 preparation method Methods 0.000 title claims abstract description 26
- 239000000203 mixture Substances 0.000 claims abstract description 60
- 238000001556 precipitation Methods 0.000 claims abstract description 35
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- 230000008859 change Effects 0.000 claims abstract description 26
- 238000010790 dilution Methods 0.000 claims abstract description 22
- 239000012895 dilution Substances 0.000 claims abstract description 22
- 239000005022 packaging material Substances 0.000 claims abstract description 21
- 229920003023 plastic Polymers 0.000 claims abstract description 21
- 239000004033 plastic Substances 0.000 claims abstract description 21
- 238000011049 filling Methods 0.000 claims description 7
- 238000003756 stirring Methods 0.000 claims description 6
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- 238000002513 implantation Methods 0.000 claims description 2
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- 238000005259 measurement Methods 0.000 description 15
- 230000008569 process Effects 0.000 description 15
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- 239000011347 resin Substances 0.000 description 15
- 238000002347 injection Methods 0.000 description 12
- 239000007924 injection Substances 0.000 description 12
- 238000000576 coating method Methods 0.000 description 11
- 239000011248 coating agent Substances 0.000 description 10
- 238000010586 diagram Methods 0.000 description 8
- 238000001746 injection moulding Methods 0.000 description 7
- 239000002002 slurry Substances 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 6
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- 239000002244 precipitate Substances 0.000 description 6
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- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 3
- 239000003086 colorant Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- -1 metal complex salt Chemical class 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000005020 polyethylene terephthalate Substances 0.000 description 3
- 229920002223 polystyrene Polymers 0.000 description 3
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- 239000000047 product Substances 0.000 description 3
- 238000007650 screen-printing Methods 0.000 description 3
- 238000007493 shaping process Methods 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- LIZLYZVAYZQVPG-UHFFFAOYSA-N (3-bromo-2-fluorophenyl)methanol Chemical compound OCC1=CC=CC(Br)=C1F LIZLYZVAYZQVPG-UHFFFAOYSA-N 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 229920002396 Polyurea Polymers 0.000 description 2
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 2
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 description 2
- 238000012790 confirmation Methods 0.000 description 2
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- 229910000980 Aluminium gallium arsenide Inorganic materials 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000004970 Chain extender Substances 0.000 description 1
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 1
- 229910002601 GaN Inorganic materials 0.000 description 1
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
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- 125000003368 amide group Chemical group 0.000 description 1
- 239000003125 aqueous solvent Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
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- 235000013339 cereals Nutrition 0.000 description 1
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- 239000000470 constituent Substances 0.000 description 1
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- 238000007599 discharging Methods 0.000 description 1
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- 238000004043 dyeing Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000027555 hydrotropism Effects 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
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- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
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- 239000003973 paint Substances 0.000 description 1
- 239000000123 paper Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
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- 229920003226 polyurethane urea Polymers 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
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- 239000002994 raw material Substances 0.000 description 1
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- 239000002904 solvent Substances 0.000 description 1
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- 229920002803 thermoplastic polyurethane Polymers 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
- H01L33/52—Encapsulations
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
- H01L33/52—Encapsulations
- H01L33/56—Materials, e.g. epoxy or silicone resin
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/005—Processes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
- H01L33/50—Wavelength conversion elements
- H01L33/501—Wavelength conversion elements characterised by the materials, e.g. binder
- H01L33/502—Wavelength conversion materials
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2933/00—Details relating to devices covered by the group H01L33/00 but not provided for in its subgroups
- H01L2933/0008—Processes
- H01L2933/0033—Processes relating to semiconductor body packages
- H01L2933/0041—Processes relating to semiconductor body packages relating to wavelength conversion elements
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Power Engineering (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
- Led Device Packages (AREA)
Abstract
The present invention relates to LED package syringe and the preparation method of LED package, in more detail, there is provided the preparation syringe of LED package, the preparation of above-mentioned LED package are included with syringe：Body, the mixture of fluorophor and plastic packaging material is internally contained, and discharged to the downside of above-mentioned body；And temperature indicating compound, when above-mentioned body is molded, mixed with article shaped, and the temperature of said mixture is shown by the color change of body, and above-mentioned light-emitting diode packaging material preparation syringe has temperature display function, the dilution section of the superiors of body and undermost precipitation section are determined come the temperature presented with the change of color according to the surface of the body in agitated mixture.
Description
Technical field
The present invention relates to LED package, more particularly, to phosphor blends can be identified with visual manner
Temperature and state, so as to by preparation section reliability maximize the LED package with temperature display function
The preparation method of LED package with syringe and using the syringe.
Background technology
Light emitting diode (light emission diode, hereinafter referred to as LED) as light-emitting device is both to be small-sized
Device, there is high efficiency again, and can embody distinct and various color luminous, and there is outstanding drive characteristic, because
This, has outstanding feature in terms of vibration and switch motion is repeated.
Because LED can pass through the compound semiconductor such as GaAs, AlGaAs, GaN, InGaN and AlGaInP (compound
Semiconductor) the change of material forms light emitting source, therefore uses the light source for a variety of colors.This LED is as illumination
With equipment, with the increase to high power and the demand of high brightness capabilities, the Performance And Reliability encapsulated for improving LED is ground
Study carefully and just actively carry out.
In order to improve the performance of LED product, not only need to prepare the LED chip with outstanding light efficiency in itself, and
Also need to for effectively extracting light, colour purity is outstanding, and the making of the LED encapsulation of the characteristic equilibrium between product.
In order to embody white light by LED, generally formed in blueness or ultraviolet LED chip and be mixed with yellow fluorescence
The fluorescence coating of the state of body or green-emitting phosphor and red-emitting phosphors.This fluorescence coating mixes fluorophor by using distributor
Together in epoxy resin or silicones etc. fluorescent liquid coating after on chip, by drying process, be consequently formed LED encapsulation.
This LED light quality is not only affected because of coated fluorophor characteristic in itself, but also because of fluorophor
Distributional pattern and be greatly affected.In the treatment process that common LED is encapsulated, by transparent resin and fluorophor powder
Mixture flow into the mode in the packaging cup for being provided with LED chip, in an uniform manner control resin material in it is glimmering
Sizable difficulty be present in the spatial distribution of body of light.Due to this problem so that the density coated on the fluorophor in LED core is not
Equilibrium, therefore, the chromaticity coordinates deviation of output light are serious, and color separation or color marks phenomenon easily occurs.
Fig. 1 is the figure for showing conventional LED encapsulation preparation sections.
(a) part of reference picture 1, the encapsulation main body 11 for being internally configured with substrate 12 are located at defined production path or position
Put.LED chip 13 is installed on the top of substrate 12, and comes connecting substrate 12 and LED chip 13 by wire or metal wire 14.
Under this configuration status, as shown in Fig. 1 (b) part, being mixed with the resin material 15 of fluorophor 16 will inject
To the predetermined space of encapsulation main body 11.The fluorophor 16 and the fluid-mixing of resin material 15 injected by this way is by LED
Chip 13 forms solidification in the state of being packaged in inside, so as to implement LED packaging process.
In the preparation section of this LED encapsulation, various ways can be applicable to form phosphor resin layer, but it is general
All over the mode used using distributor (dispenser).This distributor with by syringe (syringe) come to LED chip
The mode of the periphery mixture of discharging quantitative fluorophor and resin material form resin bed, and mixed with resin material
In the state of the fluorophor of state obtains filling in syringe, process over time and precipitated, it is therefore, it is necessary to rapid
Terminate injection process.
The deposited phenomenon of above-mentioned fluorophor particle can be to product the characteristic of chromaticity coordinates etc bring deleterious effect.Cause
This, in the case of using identical distributor in identical process, also occurs inclined between the chromaticity coordinates between LED encapsulation
Difference, and can be considered unqualified relative to reference color coordinate, the big LED encapsulation of deviation.
Specifically, due to this deposited phenomenon so that the upper strata being present in inside the syringe and mixing ratio of fluorophor is bright
Aobvious part less than specified ratio and the lower floor being present in inside syringe and the mixing ratio of fluorophor are apparently higher than specified ratio
Part formation is coexisted.This upper and lower with different mixing ratios cause unqualified, and this meeting in injection process
Bring the reduction of the yield of process.
In order to reduce disqualification rate in the preparation process that is encapsulated in LED, the admixture of resin material and fluorophor it is equal
Even property turns into important factor, and it is in fact impossible thing using naked eyes this to be identified on preparation section, though
So it can be considered that using extra optical equipment situation, but there is asking for the production cost that overruns and time in this method
Topic.
The content of the invention
The present invention proposes that it is an object of the present invention to provide with temperature in order to solve the problems, such as described above
The LED encapsulation syringe of display function and the preparation method for utilizing the LED of the syringe to encapsulate.It is above-mentioned that there is temperature display work(
The LED encapsulation of energy can identify admixture at once with syringe by confirming temperature, so as in the production work of LED encapsulation
Fluorophor is uniformly injected into sequence, and by the way that only using the section with the ratio optimized, disqualification rate is minimized, from
And there can be the yield by LED encapsulation to maximize.
The present invention provides the LED encapsulation syringes with temperature display function, it is characterised in that including：Body,
Inside contains the mixture of fluorophor and plastic packaging material, and is discharged from downside；And display part, by temperature indicating compound group into, when
During above-mentioned body shaping, mixed with article shaped, and the temperature of said mixture shown by the color change of body,
And above-mentioned display part has temperature display function, so as to which color is presented according to by agitated mixture, body is understood
The superiors dilution section and undermost precipitation section.Therefore, because it can confirm and determine based on temperature exactly
The precipitation capacity of fluorophor, thus the accuracy of process is improved, increase yield.
Above-mentioned display part can with different color or color depth come show the first temperature range, second temperature section and
3rd temperature range, above-mentioned first temperature range are the temperature range below the normal temperature of mixture, and above-mentioned second temperature section is
Temperature range between 30 DEG C to 40 DEG C, above-mentioned 3rd temperature range are more than 40 DEG C of temperature range.
Also, above-mentioned temperature indicating compound can be the resin mixed when carrying out injection molding with article shaped.
Preferably, the mixed weight ratio to the article shaped of above-mentioned temperature indicating compound is 0.2%~3.0%.
Above-mentioned thermo-color may include：First thermo-color, for showing the temperature of the first temperature range；Second temperature indicating applies
Material, for showing the coating in second temperature section；And the 3rd coating, for showing the temperature of the 3rd temperature range.Therefore, have
There is outstanding temperature differentiated energy.
Preferably, above-mentioned temperature indicating compound shows color change in the range of 25 DEG C to 45 DEG C.Therefore, by work
Make the Temperature Distribution of environment set optimization, so as to improve yield.
If also, raised with the temperature of agitated mixture, it is directed to the dilution section and settling zone of valid interval
Between ratio may increase.Therefore, with temperature is confirmed, this rate variance can be identified exactly.
Also, distribution is previously obtained come the amount in the precipitation section determined according to temperature, and flows into LED encapsulation, is injected into
Untill the border in valid interval and dilution section.Thus, the waste of each part and fluorophor is minimized.
Above-mentioned body can also include antistatic additive, and it is mixed when above-mentioned article shaped is molded, and prevent electrostatic so that
The quantitative cooperation of fluorophor and plastic packaging material can be realized.Therefore, it is possible to improve the efficiency in LED production processes.
On the other hand, the present invention provides the LED preparation methods of encapsulation, it is characterised in that including：Syringe filling step,
Fluorophor and plastic packaging material are applied to body；Whipping step, mixture is stirred by agitator；Temperature verification step, passes through
The display part of body confirms the temperature of agitated mixture；Determine to dilute section, precipitation by the display of display part
The step of amount of section and valid interval；Section discharge step is precipitated, precipitation section is allocated in advance；And valid interval
Implantation step, is encapsulated to LED, and valid interval is injected into.Therefore, there is the advantages of yield substantially rises.Confirm in said temperature
Step, the temperature after being just stirred can be by the color or color depth of measurement unit with vision with dropping to the temperature of normal temperature
Mode confirmed.
According to the LED encapsulation syringe with temperature display function of the present invention and the LED encapsulation using the syringe
Preparation method, due to the valid interval of the mixture of fluorophor and plastic packaging material can be set according to the difference of temperature, so as to
The mixture section in the syringe of optimization can be selected to be applicable, thus compared with conventional, having can expect significantly
Rise yield, and the waste to form fluorophor and the part of LED encapsulation can be prevented, productivity ratio can not only be increased, and can also
The advantages of reducing unnecessary waste and reducing production cost.
Brief description of the drawings
Fig. 1 is the schematic diagram for the preparation section for showing conventional LED encapsulation.
Fig. 2 is to show this cross sectional side view according to the LED encapsulation syringes with temperature display function of invention.
Fig. 3 be show based on according to the present invention the LED encapsulation syringes with temperature display function LED encapsulate and
The schematic diagram of the example contrasted with this.
Fig. 4 is the schematic diagram of the difference for the valid interval for representing the mixture according to temperature.
Fig. 5 a to Fig. 5 c are the schematic table that the relation of temperature, time and luminosity is shown in each temperature range.
Fig. 6 is to show the flow chart according to the LED of the present invention preparation methods encapsulated.
Embodiment
Hereinafter, to the LED encapsulation syringe with temperature display function according to the present invention and this is utilized referring to the drawings
The preparation method of the LED encapsulation of syringe is described in more details.
Fig. 2 is the side view for showing the LED encapsulation syringes with temperature display function according to the present invention.
Substantially, syringe of the present invention as the distributor for being located at LED preparation facilities, including：Body 100, inside
Portion contains the mixture of fluorophor and plastic packaging material, and is discharged from downside；And temperature indicating compound, when above-mentioned body 100 into
During type, mixed with article shaped, so as to show the temperature of said mixture by the color change of body 100.
This syringe can be combined with distributor, and above-mentioned distributor is configured at the encapsulation main body of transfer LED encapsulation
On predetermined transfer path, it is preferable that said syringe makes the mixture of fluorophor and plastic packaging material to be filled and exchange, and
Dismantledly configured.
The LED preparation facilities for being configured with syringe of the present invention can be applicable the equipment of variform, also, syringe
Injection form also can be suitably used for being expelled directly out the mode selected by formula or indirect discharge formula etc..
The body 100 of this syringe by transparent material in order to the state inside outside display, be formed, but simultaneously
This is not limited to, opening (not showing Ref. No.) is formed in upside, so as to filling mixture, and is formed in downside predetermined
Nozzle, for injecting selected amount.The material of this body 100 can be formed selectively, but preferably, it is contemplated that it is raw
Yield, by being formed as the resin material for the article shaped that can carry out injection molding.
But it is as described below, in the outside of syringe 100 by specified capacity, with visual manner grasp dilution section and/
Or precipitation section, and set in a manner of not distributing in advance this, thus including measurement unit 200, above-mentioned measurement unit 200 with
It can be shown from the mode of the capacity of the mixture inside the measure of the outside of body 100, it is thus preferable that above-mentioned
The material in body portion 100 is formed with transparent material.
Also, as a structure of the mixture for being contained in body 100, fluorophor can be applicable with current known or
The red of a variety of constituents that can be predicted, green, the fluorophor of blueness or Yellow series.
Also, as another structure of mixture, plastic packaging material can be by the ring with outstanding transmitance and curability
The resin object such as oxygen tree fat or silicones is formed, but is not limited thereto.
As time goes by, the mixture of above-mentioned fluorophor and plastic packaging material of the inside of syringe is contained in because of proportion
Difference and precipitate, and as described above, this can according to the section of the mixture injected to encapsulation main body come trigger produce not
The problem of qualified.Present invention demonstrates that during the precipitation degree of this fluorophor is determined, the temperature and time of mixture
Together turn into principal element, thus the system for the LED encapsulation that yield can be improved in terms of the dependency relation between temperature is provided
Preparation Method.
Within the concept of the invention, above-mentioned body 100 includes temperature indicating compound, so as to its entire surface by color come
Temperature change inside display.
On the other hand, when temperature indicating compound and the article shaped of above-mentioned body 100 mix, and carry out injection molding,
Body 100 can be together formed, but is used as another embodiment of the present invention, according to circumstances can be included by above-mentioned measurement unit 200
Thermo-color, and the temperature of mixture is visually shown by the color change of the predetermined position of measurement unit 200.It is preferred that
Ground, this measurement unit 200 can be formed by thermo-color (thermopaint) or the material comprising thermo-color, above-mentioned temperature indicating
Coating is reacted according to temperature by color change.
This measurement unit 200 can be configured in a manner of outer surface of the thermo-color coated on body 100, also can basis
Situation, in the state of being mixed with materials such as resin object or fibers, configured in a manner of film form is adhered to.
, can be with suitable metal complex salt, cholesteryl liquid crystal, discoloration as this temperature indicating compound or thermo-color
(Matamocolor), crystal violet lactone (crystalviolet lactone) etc., and it is used as representational invertibity temperature indicating to apply
Material, can use the Ag as temperature indicating composition respectively2HgI4And Cu2HgI4, or by them respectively by requirement ratio stirring, and mix
The coating of color needed for conjunction, so as to change color at a certain temperature, but it is not limited thereto.It is as noted previously, as heavy
Shallow lake amount changes according to the temperature and time of mixture, therefore, it is possible to distinguish this temperature range, so as to different face
Aberration is different to embody set temperature range.That is, can be shown by the difference of color precipitated fluorophor amount or
The amount for the fluorophor that will be precipitated.
Within the concept of the invention, due to the constantly Reusability to a certain extent of syringe 100, it is therefore preferred that
The outstanding material of invertibity, rather than irreversibility or accurate reversible thermally indicating material should be used, so as to detect usually
Temperature change.
Need to pay attention to, the display of this temperature is as described below, because in body on the preparation section of LED encapsulation
100 inside is applicable fluorophor and plastic packaging material, relative to normal temperature, the caused heat meeting in for mixed uniformly whipping step
The rising of temperature is produced, therefore under the configuration status in distributor, the identification to temperature change can be more significant.
Above-mentioned temperature indicating compound uses in the shaping of body 100, and preferably, this shaping should be with injection molding
Mode is realized, therefore, according to the character of particular compound, can be classified as follows.
【Table 1】
| Difference | Temperature indicating powder | Temperature indicating slurry | Temperature indicating masterbatch |
| Character | Powder | Liquid | The solid of particle shape |
| Oiliness ink | △ | △ | × |
| Aqueous ink | × | ○ | × |
| Injection and blowing | △ | △ | ○ |
Wherein, identification mark "×" represents to be not suitable for, and "○" represents to be adapted to, and " △ " represents possible state.
The temperature indicating powder of graininess can use in the case of ink for screen printing or a small amount of injection.This temperature indicating powder energy
Enough frosting coatings being applied to containing ABS, PET, Polypropylene, Polystyrene, PVC, PVA etc..In this feelings
Under condition, the blending ratio of oil-based solvent is preferably 15%~30%.
In the case of temperature indicating slurry (slurry), due in liquid, thus with easy hydrotropism ink or water paint
Mixed characteristic.In the case of temperature indicating slurry, solid containing ratio is probably 45%~50%.This temperature indicating slurry is suitable for
Water-soluble silk-screen printing, coating, injection or dyeing, it is therefore preferred that meter according to another embodiment of the present invention can be applied to
Predetermined coating or film in amount portion 200.Above-mentioned temperature indicating slurry can vinyl plastics, cloth, paper, film, glass, ceramics,
Trees etc. are applied to silk-screen printing, soft version intaglio printing.In this case it is preferably to the blending ratio in aqueous solvent is
15%~30%.
Preferably, temperature indicating powder or temperature indicating slurry as described above are used as thermo-color or film suitable for measurement unit 200.
But in the case of this thermo-color, it is not excluded that the temperature indicating compound as injection molding is used.
In the case of temperature indicating masterbatch (master batch), preferred configuration is suitable for extruding or injection molding etc
Processing, and put into temperature indicating compound to the article shaped as basic plastic raw materials.Generally, first can be carried out with grain of rice size
The form supply of secondary processing, and processed in first time in form, the ratio of temperature-indicating pigment is advisable with 12%~18% or so.At this
In invention, temperature indicating compound can be understood to mean that the particle for having carried out the form of processing for the first time.
In the case, PE, PP, PS, ABS, PET, polystyrene can be selected from by being used in the article shaped of above-mentioned injection
(polystyrene), the compound such as PVC, PVA, terylene (Polyester), nylon (Nylon), but be not limited thereto.It is preferred that
Ground, in above-mentioned article shaped, the ratio of temperature indicating compound is between 0.2%~3%.
In view of injection molding, temperature indicating compound of the invention is made up of above-mentioned temperature indicating masterbatch, and this is as most preferred embodiment
To propose.
Stirred, and formed in the state of uniform mixing to a certain degree in the mixture of fluorophor and plastic packaging material, with
The process of time, precipitation is produced in the inside of body 100, and due to this precipitation, along the height side of body 100
To distinguishing the high section of mixing ratio of fluorophor and low section.
Fig. 2 more clearly represents the concept in this section, can divide into：Section c is precipitated, because forming undermost precipitation
And mixing ratio is high；Dilute section a, the section of the low the superiors of mixing ratio；And valid interval b, as intermediate layer, can be applicable
Encapsulated in LED.
Above-mentioned section can not be the state clearly distinguished in a manner of sense of vision, relatively, can be with predetermined
The state in mixing ratio section defines, and valid interval b can be considered as with will not be presented big error in the chromaticity coordinates of LED encapsulation
Degree mixing ratio section, dilution section a and precipitate section c and can be understood as the section that is had an impact to yield.
On the other hand, the material of the body 100 of said syringe can be made up of selected material, and in resinous wood
In the characteristic of matter, according to friction, the worry that electrostatic occurs be present, and this can turn into the accuracy that reduces engagement process because
Element.Accuracy in view of to improve this cooperation, as an embodiment, body 100 can be implemented for preventing electrostatic
Conductive processing, and the masterbatch for including antistatic additive can be applicable.As this embodiment, it may be considered that to electrostatic dispersion performance
The scheme that is mixed of macromolecule resin thing, and be used as macromolecule resin thing, the polyethers containing oxirane can be applicable
Polymer aliphatic diisocyanate compound and so that the chain extender of the carbon number 2 to 10 containing primary hydroxyl or amido reacts
The mode thermoplastic polyurethane (polyurethane) or polyureas (polyurea) that prepare.
Also, it is as described below, take around 100 minutes left sides from the decline of temperature of the predetermined temperature range untill normal temperature
The right side, and in order to more improve the discharge performance of temperature, the material for being used to improve heat conductivity can be included in body 100.
Fig. 3 is the state for the LED encapsulation that difference shows the section based on this mixing ratio, causes what can be compared to show
It is intended to.
If as described above, being provided with body 310, LED encapsulates 300 in its upper-layer configured chip 320, and predetermined in end
After the preparations such as the connection of metal wire, mixture is injected, so as to form encapsulation part 330.
Above-mentioned encapsulation part 330 can complete its form by predetermined curing schedule, and in connection with this, can be applicable in the past
Various ways.
Fig. 3 (a) part represents that the dilution section a low equivalent to content mixture flows into LED and encapsulates 300 states,
Fig. 3 (c) part represents that the precipitation section c high equivalent to the content of fluorophor mixture flows into the shape of LED encapsulation 300
State.
The situation for precipitating section c can be situation about initially being injected in the allocation step of syringe, dilute section a feelings
Condition can be in the inside of the syringe situation that almost emptying step is injected.In this case, noted with valid interval b
Situation about entering is compared, and the wavelength of the light sent from chip 320 can be changed in a manner of mutually different, thus is chromaticity coordinates
Value is presented in a different manner, so as to obtain required yield.
Therefore, valid interval b is only selected to inject exactly, this is in each portion for preventing from forming fluorophor and LED encapsulation 300
It is extremely important in terms of the waste of part and raising yield.Especially, in the case of fluorophor, due to being relatively high price, therefore, accurately
Valid interval b be set in improve productivity ratio in terms of there is prior meaning.
Because this dilution section a and precipitation section c amount can be specified by different way according to the temperature of mixture,
Therefore, content related to this will be more detailed aftermentioned by comparing data progress.
Fig. 4 is the schematic diagram of the difference for the valid interval for representing the mixture according to temperature.
The working environment of ordinary dispensers is set as about 25 DEG C, and observed.Also, in the present invention, although will
The volume for the mixture filled to syringe is illustrated on the basis of 50cc, but the capacity of this syringe can be according to work
Environment selects.
On the other hand, Fig. 4 syringe presents combines nozzle needle portion 110 in body 100, so as to pass through lower section
The state being allocated.
The mixture for the mixing that Fig. 4 (a) partly represents to have terminated fluorophor and plastic packaging material at normal temperatures is filled in body
The state in portion 100.Also be not in too many as illustrated, even if passing through the scheduled time after filling at a temperature of 25 DEG C
Precipitation capacity, relative to the amount of about 38cc mixture, be largely able to carry out valid interval b function.
Fig. 4 (b) is partly to show and 30 DEG C to 40 DEG C as the temperature risen in stirring or during mixing
Temperature range in precipitation capacity between relation schematic diagram.The temperature that the normal temperature of working environment more rises is used in temperature
Spend in section, precipitation section c separates about 1g to 3g or so with dilution section a.
Fig. 4 (c) is partly to show the schematic diagram of the relation of the precipitation capacity in temperature range more than 40 DEG C, settling zone
Between c and dilution section a present about 3g to 5g.
Substantially, this precipitation section c and dilution section a can be presented in a manner of symmetrical, and thus, following institute
State, if determining precipitation section c sendout, just can proportionally be calculated with this shape and determine to dilute section a.
Like this, more rise relative to the normal temperature as working environment, temperature, the dilution section a on valid interval b upper strata
More increase with the precipitation section c of lower floor amount, and this means when temperature is raised, it is necessary to before and after operation is distributed institute
The valid interval b of injection amount is being reduced.
Although it is not shown, but in the temperature below 25 DEG C, (a) with Fig. 4 is partly without too big difference.
Therefore, as an embodiment, less than 25 DEG C of temperature is defined as the first temperature range by the present invention, by 30 DEG C to 40
DEG C temperature be defined as second temperature section, more than 40 DEG C of temperature is defined as the 3rd temperature range, using as separating
Precipitate section c and dilute section a benchmark.But it is noted that it is this setting benchmark can according to factors such as working environments and
It is different.
On the other hand, within the concept of the invention, as described below, due to the whipping process by fluorophor and plastic packaging material,
Thus occur the rising of temperature with the conflict between molecule, the temperature risen by this way can be regarded as 30 DEG C with
On.Accordingly, it is to be understood that can be in reality as the blank between the first temperature range of original state and second temperature section
In working environment it is ignored fall.
On the other hand, Fig. 4 diagram state is observed, it finds that, the measurement unit 200 in the state of the first temperature range
Color and the color in second temperature section and the 3rd temperature range show in a different manner respectively.
As described above, measurement unit 200 includes thermo-color, this thermo-color can react with temperature, and temperature indicating
As long as the composition of coating can show color change between 25 DEG C to 45 DEG C.And, it is preferable that in order to be at once
Reveal the change of temperature, this temperature indicating compound or thermo-color use reversible thermally indicating material.
Also, the body 100 comprising above-mentioned temperature indicating compound is as single temperature indicating composition, although can be with difference
Color and color depth represent the first temperature range to the 3rd temperature range, but be difficult to distinguish more than three kinds shapes due to having
The situation of state, thus this measurement unit can include the first thermo-color for being used for that the first temperature range to be presented, for being presented the
Second thermo-color of two temperature ranges and the 3rd thermo-color for the 3rd temperature range to be presented.Said temperature area is presented
Between region can circumferentially be mutually distinguishable, and the measurement unit 200 that this also can be suitably used for including thermo-color.
In the case, each temperature indicating compound or thermo-color can have different color or face to different temperature ranges
Colour saturation, it is preferable that the first thermo-color can have base colors under 25 DEG C or so of temperature conditionss, and the second thermo-color can
There are base colors under 30 DEG C or so of temperature conditionss, the 3rd thermo-color there can be base under 40 DEG C or so of temperature conditionss
Quasi- color.Here, the front and rear section of each fiducial temperature is construed as about 2 DEG C to 3 DEG C or so of scope.
Fig. 5 a to Fig. 5 c are to show temperature to clearly find out the relation of temperature and precipitation capacity in each temperature range
The chart of the relation of degree and luminosity.
Fig. 5 a are under the normal temperature condition as the first temperature range, in relation of the luminosity (radiation density) between the time
The schematic diagram of the middle change for representing temperature.
The data of this chart are described in more detail by following table.Luminosity with μm/cm2/ nm unit carrys out table
Show.The change of this luminosity has used the data in precipitation section c original allocations, and is used as base using the volume of Fig. 4 syringe
It is accurate.
In the first temperature range, i.e. under 25 DEG C of normal temperature condition, since stirring after (0 minute) be by 115 minutes
Only, observed in units of every 5 minutes, observation result is that the change of luminosity stops in 0.0002 unit or so, and is observing
In time range, whole region forms encapsulation part 330, and this can be utilized as significant data.
Therefore, in actual LED encapsulation process process, when in view of in once filling largely within 115 minutes
When obtaining processing, it means that in the first temperature range, i.e. under less than 25 DEG C of temperature conditionss, as shown in Fig. 4 (a) part,
Being filled in most of mixture inside syringe can effectively be injected into.
【Table 2】
| Elapsed time | 0min | 5min | 10min | 15min | 20min | 25min |
| Luminosity/coordinate | 0.7916 | 0.7916 | 0.7916 | 0.7913 | 0.7915 | 0.7913 |
| Temperature | 25.1 | 25.3 | 25.4 | 25.2 | 25.3 | 25.2 |
| 30min | 35min | 40min | 45min | 50min | 55min | 60min |
| 0.7914 | 0.7912 | 0.7913 | 0.7916 | 0.7911 | 0.7913 | 0.7913 |
| 25.3 | 25.3 | 25.1 | 25.1 | 24.8 | 25.1 | 25.0 |
| 65min | 70min | 75min | 80min | 85min | 90min | 95min |
| 0.7916 | 0.7913 | 0.7914 | 0.7914 | 0.7915 | 0.7915 | 0.7916 |
| 25.2 | 25.3 | 25.2 | 25.3 | 25.0 | 25.3 | 25.3 |
| 100min | 105min | 110min | 115min | |||
| 0.7916 | 0.7918 | 0.7918 | 0.7918 | |||
| 25.1 | 25.3 | 25.0 | 25.2 |
The change of the luminosity in second temperature section is represented in figure 5b, is described in more detail in following table.
In second temperature section, specifically, under conditions of 30 DEG C, since stirring after (0 minute) be to 115 minutes
Only, observed in units of every 5 minutes, observation result is that the change of luminosity shows 0.012 or so.
This means occur dilution section a and precipitation section c, and exclude the section come realize injection.Here, confirm
Temperature is untill 30 DEG C of second temperature section 25 DEG C or so be down to as normal temperature, it is necessary to about 30 minutes or so.
【Table 3】
| Elapsed time | 0min | 5min | 10min | 15min | 20min | 25min |
| Luminosity/coordinate | 0.7798 | 0.7853 | 0.7891 | 0.7913 | 0.7913 | 0.7914 |
| Temperature | 30.2 | 28.3 | 26.9 | 26.3 | 25.8 | 25.2 |
| 30min | 35min | 40min | 45min | 50min | 55min | 60min |
| 0.7916 | 0.7913 | 0.7916 | 0.7914 | 0.7912 | 0.7915 | 0.7915 |
| 25.1 | 24.9 | 25.0 | 25.2 | 25.2 | 25.1 | 25.2 |
| 65min | 70min | 75min | 80min | 85min | 90min | 95min |
| 0.7915 | 0.7918 | 0.7916 | 0.7915 | 0.7917 | 0.7915 | 0.7919 |
| 24.8 | 24.6 | 24.7 | 24.5 | 24.6 | 25.5 | 25.5 |
| 100min | 105min | 110min | 115min | |||
| 0.7916 | 0.7914 | 0.7915 | 0.7914 | |||
| 25.1 | 25.6 | 25.0 | 25.3 |
The change of the luminosity in the 3rd temperature range is represented in fig. 5 c, is described in more detail in following table.
In the 3rd temperature range, specifically, under 42 DEG C of temperature conditionss, since stirring after (0 minute) to 115 points
Untill clock, observed in units of every 5 minutes, observation result is that the change of luminosity shows 0.022 or so.
This means there is dilution section a and precipitation section c, and the section is excluded to realize injection, as described above, the
Three temperature ranges are the temperature higher than second temperature section, and like this, high temperature, the precipitation section of presentation are more.Here, really
Temperature of accepting is untill 42 DEG C of the 3rd temperature range 25 DEG C or so be down to as normal temperature, it is necessary to about 50 minutes or so.
【Table 4】
| Elapsed time | 0min | 5min | 10min | 15min | 20min | 25min |
| Luminosity/coordinate | 0.7698 | 0.7773 | 0.7833 | 0.7867 | 0.7887 | 0.7891 |
| Temperature | 42.3 | 42.0 | 37.6 | 32.7 | 29.8 | 28.2 |
| 30min | 35min | 40min | 45min | 50min | 55min | 60min |
| 0.7901 | 0.7897 | 0.7897 | 0.7900 | 0.7911 | 0.7911 | 0.7913 |
| 26.2 | 26.2 | 25.8 | 25.6 | 25.0 | 25.1 | 24.8 |
| 65min | 70min | 75min | 80min | 85min | 90min | 95min |
| 0.7916 | 0.7913 | 0.7914 | 0.7914 | 0.7915 | 0.7915 | 0.7916 |
| 24.8 | 24.9 | 25.0 | 25.1 | 24.6 | 25.5 | 25.5 |
| 100min | 105min | 110min | 115min | |||
| 0.7916 | 0.7918 | 0.7918 | 0.7918 | |||
| 25.3 | 25.6 | 25.0 | 24.8 |
Fig. 6 is to show to prepare the temperature display of the invention having according to above-mentioned item with syringe using LED encapsulation
The flow chart of the preparation method of the LED encapsulation of function.
Fluorophor and plastic packaging material are applicable by the predetermined ratio of syringe, so as to via syringe filling step (S100),
And can be since being stirred mixture whipping step (S200), and in this course, can be because of the conflict between molecule
And heat occurs, and along with the rising of temperature, this is identical with the above.
According to factors such as mixing ratio, capacity and mixings time, the lifting range of this temperature is showed on the basis of normal temperature
Predetermined difference, and the rising of this temperature can be confirmed by measurement unit 200.Thus, user of service is by being located at syringe
The color change of measurement unit 200 confirm temperature (S310).The temperature indicating being identified through contained by measurement unit 200 of this temperature applies
The invertibity of material is denatured to realize, and as described above, thermo-color can be applicable and the first temperature range to the 3rd temperature range
Accordingly show the first thermo-color to the 3rd thermo-color of predetermined color or color depth.
Here, temperature when confirming to include to the initial temperature after being just stirred and reaching normal temperature of temperature
Confirmation more than twice.That is, in order to dilute section a and precipitate section c difference, it is necessary to the temperature of the mixture inside syringe
Drop to the time delay untill normal temperature, and content of this item as described in Fig. 5 b to Fig. 5 c and table 2 to table 3.
If realizing the confirmation (S310) of temperature like this, realize dilution section a and precipitate section c setting (S320).
This dilution section a and precipitation section c can distinguish body such as above-mentioned example in second temperature section with 1cc to 2cc
100 the top layer and bottom layer, the top layer of body 100 and most is distinguished with 3cc to 5cc in the 3rd temperature range
Lower end layer, but this difference can determine by different way according to environment.
If determining dilution section a and precipitation section c like this, before suitable for LED encapsulation 300, to precipitating section c
Preferentially it is allocated, so as to via the discharge step (S330) in precipitation section, afterwards, be applicable LED encapsulation 300 to realize effective district
Between b injection (S400).
Wherein, dilution section and precipitate section setting procedure (S320) in, due to preassigned valid interval b and
Dilute section a border, and this injection is only formed untill above-mentioned border, therefore, hardly occur it is unqualified, and can be most
The fluorophor and composition LED part that smallization is wasted.
Persistently carried out in the process that process as described above can continue to be allocated in a syringe, and can be
After initial configuration, only realize and once set.For example, even if syringe does not reach normal temperature, above-mentioned data can be also based on, according to
The temperature and precipitation capacity confirmed after the time as defined in process, to determine to precipitate section c any sendout.
According to as described above according to the LED encapsulation syringe with temperature display function of the present invention and the utilization note
The preparation method of the LED encapsulation of emitter, can set the effective of the mixture of fluorophor and plastic packaging material according to the difference of temperature
Section, thus, it is possible to select and be applicable the mixture section in optimal syringe, thus it is compared with the past, yield can be expected
Notable rising.
Also, due to the waste to form fluorophor and the part of LED encapsulation can be prevented so that having to improve
Productivity ratio, and the advantages of unnecessary waste can also be reduced and reduce production cost.
More than, the present invention is described in detail based on embodiment and accompanying drawing.But the scope of the present invention is not limited to
Embodiment and accompanying drawing, the scope of the present invention above is limited according only to the content described in claims.
Claims (7)
1. a kind of LED package syringe, wherein,
Including：
Body, the mixture of fluorophor and plastic packaging material is internally contained, and discharged from downside；And
Display part, by temperature indicating compound group into when above-mentioned body is molded, being mixed with article shaped, and pass through body
Color change shows the temperature of said mixture,
Above-mentioned display part has temperature display function, come the color that presents, to understand this according to by agitated mixture
The dilution section of the superiors in body portion and undermost precipitation section,
Above-mentioned display part shows the first temperature range, second temperature section and the 3rd temperature with different color or color depth
Section, above-mentioned first temperature range are the temperature range below the normal temperature of mixture, and above-mentioned second temperature section is 30 DEG C to 40
Temperature range between DEG C, above-mentioned 3rd temperature range are more than 40 DEG C of temperature range.
2. LED package syringe according to claim 1, wherein, to the article shaped of above-mentioned temperature indicating compound
Mixed weight ratio be 0.2%~3.0%.
3. LED package syringe according to claim 1, wherein, above-mentioned temperature indicating compound is at 25 DEG C to 45
Color change is showed in the range of DEG C.
4. LED package syringe according to claim 1, wherein, in addition to antistatic additive, it is above-mentioned
Article shaped is mixed when being molded, and prevents electrostatic to allow to realize the quantitative cooperation of fluorophor and plastic packaging material.
5. a kind of LED package syringe, wherein,
Including：
Body, the mixture of fluorophor and plastic packaging material is internally contained, and discharged from downside；And
Display part, by temperature indicating compound group into when above-mentioned body is molded, being mixed with article shaped, and pass through body
Color change shows the temperature of said mixture,
Above-mentioned display part has temperature display function, come the color that presents, to understand this according to by agitated mixture
The dilution section of the superiors in body portion and undermost precipitation section,
Raised with the temperature of the mixture after stirring, above-mentioned display part shows the dilution section for being directed to valid interval and sunk
The ratio increase in shallow lake section, and the degree for the valid interval reduction injected.
6. a kind of LED package syringe, wherein,
Including：
Body, the mixture of fluorophor and plastic packaging material is internally contained, and discharged from downside；And
Display part, by temperature indicating compound group into when above-mentioned body is molded, being mixed with article shaped, and pass through body
Color change shows the temperature of said mixture,
Above-mentioned display part has temperature display function, come the color that presents, to understand this according to by agitated mixture
The dilution section of the superiors in body portion and undermost precipitation section,
Distribution is previously obtained come the amount in the precipitation section determined according to the display of above-mentioned display part, and flows into light emitting diode envelope
Dress, and be injected into valid interval and dilute section border untill.
7. a kind of preparation method of the LED package of syringe using any one of claim 1 to 6, its
In, including：
Syringe filling step, fluorophor and plastic packaging material are applied to body；
Whipping step, mixture is stirred by agitator；
Temperature verification step, the temperature of agitated mixture is confirmed by the display part of body；
The step of by the display of display part to determine to dilute the amount in section, precipitation section and valid interval；
Section discharge step is precipitated, precipitation section is allocated in advance；And
Valid interval implantation step, to LED package, valid interval is injected into.
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| KR10-2013-0146094 | 2013-11-28 |
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| JP5870923B2 (en) * | 2010-08-17 | 2016-03-01 | コニカミノルタ株式会社 | Method for manufacturing light emitting device |
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