CN109742217A - Least square method based four-phosphor LED proportioning and dispensing amount recommendation method - Google Patents
Least square method based four-phosphor LED proportioning and dispensing amount recommendation method Download PDFInfo
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- CN109742217A CN109742217A CN201811385321.2A CN201811385321A CN109742217A CN 109742217 A CN109742217 A CN 109742217A CN 201811385321 A CN201811385321 A CN 201811385321A CN 109742217 A CN109742217 A CN 109742217A
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- 238000000034 method Methods 0.000 title claims abstract description 67
- 239000000843 powder Substances 0.000 claims abstract description 232
- 239000000463 material Substances 0.000 claims abstract description 21
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 43
- 239000002245 particle Substances 0.000 claims description 19
- 239000000084 colloidal system Substances 0.000 claims description 11
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 238000004364 calculation method Methods 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 15
- 238000005516 engineering process Methods 0.000 abstract description 2
- 239000003292 glue Substances 0.000 description 39
- 239000012296 anti-solvent Substances 0.000 description 10
- 238000001556 precipitation Methods 0.000 description 10
- 239000011521 glass Substances 0.000 description 7
- 230000004907 flux Effects 0.000 description 6
- 238000009877 rendering Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000005538 encapsulation Methods 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 238000004020 luminiscence type Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 241001062009 Indigofera Species 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
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- 230000006854 communication Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
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Abstract
The invention relates to a least square method-based method for recommending four fluorescent powder LED proportioning and dispensing amounts, which comprises the following steps: s1, establishing an LED ratio recommendation model by using a least square method according to historical data; s2, establishing an LED dispensing amount recommendation model through the LED proportioning model; s3, obtaining a preset ratio by using preset data and the LED ratio recommendation model; and S4, obtaining the preset dispensing amount according to the preset ratio and the LED dispensing amount recommendation model. According to the method for recommending the proportion and the dispensing amount of the four fluorescent powder LEDs based on the least square method, the big data technology is utilized, the LED proportion recommending model and the LED dispensing amount recommending model are established through historical data based on the least square method algorithm, when a user inputs material information and product information to be produced, the LED proportion recommending model can obtain recommended proportion data, and the LED dispensing amount recommending model can obtain the recommended dispensing amount, so that the sample and trial production period can be shortened, the production cost is reduced, and the production efficiency and the yield are improved.
Description
Technical field
The invention belongs to LED manufacture fields, and in particular to a kind of four based on least square method fluorescent powder LED proportion
With dispensing amount recommended method.
Background technique
LED certainly will replace most traditional lightings in the near future, become as light source product with fastest developing speed in recent years
The main product of illumination market.Wherein white light LEDs have the advantages that energy-saving and environmental protection, small in size and fluorescent lifetime it is long etc. these, in vapour
Licence is bright, and the multiple fields such as room lighting are widely used, and is most promising next-generation solid luminescence light source.This is giving white light
While LED encapsulation factory brings the wide market space, higher want also is proposed to the quality level of white-light LED encapsulation
It asks.
With the rapid development of white light LEDs industry, the luminescent properties ever more important of white light LEDs is improved.Currently, white light LEDs
The packaged type method that mainly uses the additional yellow fluorescent powder composed emission white light of blue chip, but this method is difficult to produce
The high product of colour rendering index out, higher colour rendering index in order to obtain, need to add simultaneously yellow, red, green, patent yellow this
Four kinds of fluorescent powders, but influence of four kinds of fluorescent powders to LED colour rendering index, colour temperature is different, so improving white light LEDs luminescent properties
Key is reasonably to set the proportion (abbreviation rubber powder ratio) of fluorescent powder proportion and fluorescent powder and glue, while the point of every glass of glue
Glue amount also will affect white-light emitting performance.
However, fluorescent powder is perfect not enough to the theory analysis of the white light LEDs characteristics of luminescence at present, each LED encapsulation enterprise
White light engineer is to rely on history proportion and artificial experience setting fluorescent powder proportion, does not form the fluorescent powder tune of set of system
With process, cause the process error-prone and need to verify repeatedly, cost of idleness and test-manufactr ing time is long takes time and effort, and greatly limits
Production efficiency and production yield.
Summary of the invention
In order to solve the above-mentioned problems in the prior art, the present invention provides a kind of four based on least square method
Fluorescent powder LED proportion and dispensing amount recommended method.The technical problem to be solved in the present invention is achieved through the following technical solutions:
The embodiment of the invention provides a kind of four based on least square method fluorescent powder LED proportion and dispensing amount recommendation sides
Method, comprising:
S1, LED proportion recommended models are established using least square method according to historical data；
S2, model foundation LED dispensing amount recommended models are matched by the LED；
S3, default proportion is obtained using preset data and LED proportion recommended models；
S4, default dispensing amount is obtained according to the default proportion and the LED dispensing amount recommended models.
In one embodiment of the invention, the historical data includes: red fluorescence powder chromaticity coordinates, green fluorescence pink colour
Coordinate, yellow fluorescent powder chromaticity coordinates, patent yellow fluorescent powder chromaticity coordinates, blue chip chromaticity coordinates, proportion data, target color coordinates,
Dispensing amount data, colloid thickness and auxiliary material data.
In one embodiment of the invention, S1 includes:
S11, it is sat by the red fluorescence powder chromaticity coordinates, the green emitting phosphor chromaticity coordinates, the yellow fluorescence pink colour
Mark, the patent yellow fluorescent powder chromaticity coordinates, the blue chip chromaticity coordinates, the target color coordinates calculate mixed fluorescent powder color
Coordinate；
S12, by the proportion data, the dispensing amount data, calculate red fluorescence powder volume, green in LED particle
Fluorescent powder volume, yellow fluorescent powder volume, patent yellow fluorescent powder volume；
It is S13, glimmering by the initial data, the red fluorescence powder volume, the green emitting phosphor volume, the yellow
Light powder product, the patent yellow fluorescent powder volume and the mixed fluorescent powder chromaticity coordinates, establish the LED using least square method
Match recommended models.
In one embodiment of the invention, S11 includes:
S111, it is sat by the red fluorescence powder chromaticity coordinates, the green emitting phosphor chromaticity coordinates, the blue chip color
Mark, the target color coordinates calculate the first coordinate；
S112, it is sat by the red fluorescence powder chromaticity coordinates, the yellow fluorescent powder chromaticity coordinates, the blue chip color
Mark, the target color coordinates calculate the second coordinate；
S113, it is sat by the red fluorescence powder chromaticity coordinates, the patent yellow fluorescent powder chromaticity coordinates, the blue chip color
Mark, the target color coordinates calculate third coordinate；
S114, the mixed fluorescent powder color is calculated by first coordinate, second coordinate and the third coordinate
Coordinate.
In one embodiment of the invention, the LED matches recommended models calculation formula are as follows:
(xr,yr) it is the red fluorescence powder chromaticity coordinates, (xg,yg) it is the green emitting phosphor chromaticity coordinates, (xy,yy) for institute
State yellow fluorescent powder chromaticity coordinates, (xf,yf) it is the patent yellow fluorescent powder chromaticity coordinates, (xb,yb) it is blue chip chromaticity coordinates, (xt,
yt) it is target color coordinates；LR is the unit volume conversion ratio of red fluorescence powder, and VR is red fluorescence described in a LED particle
Powder product, VG are that original Green phosphor product, VY are yellow fluorescence powder described in a LED particle in a LED particle
Product, VF are patent yellow fluorescent powder volume described in a LED particle, and h is the colloid thickness, and L1, L2, L3 are that the LED matches
Than recommended models coefficient.
In one embodiment of the invention, S12 includes:
S21, recommended models, the dispensing amount data, the colloid thickness and the auxiliary material number are matched according to the LED
According to acquisition mass ratio；
S22, according to mass ratio, establish the LED dispensing amount recommended models using least square method.
In one embodiment of the invention, the LED dispensing amount recommended models calculation formula are as follows:
Wherein,
LR is the unit volume conversion ratio of the red fluorescence powder, rr、rg、ry、rfRespectively described in a LED particle
Red fluorescence powder, the green emitting phosphor, the yellow fluorescent powder, the patent yellow fluorescent powder volume ratio, f (h) be h with
The function of VR, VG.
In one embodiment of the invention, S3 includes:
S31, default chromaticity coordinates is obtained by preset data；Wherein, the default chromaticity coordinates includes default red fluorescence powder
Chromaticity coordinates, default green emitting phosphor chromaticity coordinates are preset yellow fluorescent powder chromaticity coordinates, default patent yellow fluorescent powder chromaticity coordinates, are preset
Blue chip chromaticity coordinates；
S32, default mixed fluorescent powder chromaticity coordinates is calculated by the default chromaticity coordinates；
S33, target color coordinates are obtained, the default chromaticity coordinates is inputted into the LED dispensing and matches recommended models, using most
Small square law obtains the default proportion.
In one embodiment of the invention, S3 includes:
S31, it is obtained according to the default proportion and matches weight/power ratio；
S32, according to it is described with weight/power ratio obtain default red fluorescence powder, default green emitting phosphor, default yellow fluorescent powder,
The volume ratio of default patent yellow fluorescent powder；
S33, by the mixed fluorescent powder chromaticity coordinates, the target color coordinates, the default chromaticity coordinates and the volume ratio
The LED dispensing amount recommended models are inputted, obtain the default dispensing amount using least square method.
Compared with prior art, beneficial effects of the present invention:
Four based on least square method fluorescent powder LED provided by the invention proportion and dispensing amount recommended method, using big
Data technique is based on least square method algorithm by historical data, establishes LED proportion recommended models and LED dispensing amount is recommended
Model, when user inputs material information to be produced and product information, LED matches the proportion of the available recommendation of recommended models
Data, the available recommendation dispensing amount of LED dispensing amount recommended models can help engineer to shorten sample, test-manufactr ing time, reduce
Production cost improves production efficiency and yield.
Detailed description of the invention
Fig. 1 is a kind of four based on least square method fluorescent powder LED proportion and dispensing amount provided in an embodiment of the present invention
The structural schematic diagram of recommended method；
A kind of position Fig. 2 four based on least square method fluorescent powder LED proportion provided in an embodiment of the present invention and dispensing amount
The structural schematic diagram of recommendation apparatus.
Specific embodiment
Further detailed description is done to the present invention combined with specific embodiments below, but embodiments of the present invention are not limited to
This.
Embodiment one
Referring to Figure 1 and Fig. 2, Fig. 1 are a kind of four based on least square method fluorescent powder provided in an embodiment of the present invention
The structural schematic diagram of LED proportion and dispensing amount recommended method；The position Fig. 2 is provided in an embodiment of the present invention a kind of based on least square method
Four fluorescent powder LED proportion and dispensing amount recommendation apparatus structural schematic diagram.The packaged type of white light LEDs can pass through red
Fluorescent powder needed for fluorescent powder, green emitting phosphor, yellow fluorescent powder, patent yellow fluorescent powder are deployed into product, then passes through blue light
White light is formed after chip.
As shown in Figure 1, a kind of two based on least square method fluorescent powder LED proportion and dispensing amount recommended method, comprising:
S1, LED proportion recommended models are established using least square method according to historical data；
S2, model foundation LED dispensing amount recommended models are matched by the LED；
S3, default proportion is obtained using preset data and LED proportion recommended models；
S4, default dispensing amount is obtained according to the default proportion and the LED dispensing amount recommended models.
Further, the historical data includes: red fluorescence powder chromaticity coordinates, green emitting phosphor chromaticity coordinates, yellow fluorescence
Pink colour coordinate, patent yellow fluorescent powder chromaticity coordinates, blue chip chromaticity coordinates, proportion data, target color coordinates, dispensing amount data, glue
Body thickness and auxiliary material data；Wherein, the peak wavelength of patent yellow fluorescent powder is between 545nm~565nm, it is preferred that patent yellow
The peak wavelength of fluorescent powder is 555nm.
Specifically, production yield height is obtained from historical data using big data technology, colour rendering index, colour temperature performance are preferable
One group of production product data, wherein product data specifically include product colour rendering index, product line, blue chip model,
Each fluorescent powder model, each fluorescent powder number, bracket model, AB glue, antisolvent precipitation powder etc..
Specifically, firstly, being looked into according to each fluorescent powder model and the model of blue chip etc. in the said goods data
Ask its corresponding developing wavelength, i.e. red fluorescence powder developing wavelength, green emitting phosphor developing wavelength, yellow fluorescent powder wavelength, specially
Sharp Huang phosphor wavelength, indigo plant close the developing wavelength etc. of the product of chip developing wavelength and production.Then, it is looked into according to developing wavelength
Corresponding chromaticity coordinates table is ask, red fluorescence powder chromaticity coordinates, green emitting phosphor chromaticity coordinates, yellow fluorescent powder chromaticity coordinates, specially can be obtained
Sharp Huang fluorescent powder chromaticity coordinates, blue chip chromaticity coordinates and target color coordinates.Secondly, can also be obtained from the said goods data red
Color fluorescent powder, green emitting phosphor, yellow fluorescent powder, the proportion data of patent yellow fluorescent powder and AB glue, antisolvent precipitation powder content etc.
Auxiliary material data.
Further, S1 includes: S11, by the red fluorescence powder chromaticity coordinates, the green emitting phosphor chromaticity coordinates, institute
Yellow fluorescent powder chromaticity coordinates, the patent yellow fluorescent powder chromaticity coordinates, the blue chip chromaticity coordinates, the target color coordinates are stated,
Calculate mixed fluorescent powder chromaticity coordinates；
Further, S11 include: S111, by the red fluorescence powder chromaticity coordinates, the green emitting phosphor chromaticity coordinates,
The blue chip chromaticity coordinates, the target color coordinates calculate the first coordinate；
Specifically, defining the first coordinate is (x1,y1), then red fluorescence powder, straight line where green emitting phosphor, with blue core
The intersection point of straight line where piece chromaticity coordinates, target color coordinates is (x1,y1)。
S112, it is sat by the red fluorescence powder chromaticity coordinates, the yellow fluorescent powder chromaticity coordinates, the blue chip color
Mark, the target color coordinates calculate the second coordinate；
Specifically, defining the second coordinate is (x2,y2), then red fluorescence powder, straight line where yellow fluorescent powder, with blue core
The intersection point of straight line where piece chromaticity coordinates, target color coordinates is (x2,y2)。
S113, it is sat by the red fluorescence powder chromaticity coordinates, the patent yellow fluorescent powder chromaticity coordinates, the blue chip color
Mark, the target color coordinates calculate third coordinate；
Specifically, defining third coordinate is (x3,y3), then straight line where red fluorescence powder, patent yellow fluorescence, with blue core
The intersection point of straight line where piece chromaticity coordinates, target color coordinates is (x3,y3)。
S114, the mixed fluorescent powder color is calculated by first coordinate, second coordinate and the third coordinate
Coordinate.
Specifically, for white light LEDs, red fluorescence powder, green emitting phosphor, yellow fluorescent powder and patent yellow can be passed through
Fluorescent powder is deployed into mixed fluorescent powder, and defining the mixed fluorescent powder chromaticity coordinates that four kinds of fluorescent powders are mixed to get is (x4,y4), then x1,
x2,x3Average value be x4, and y can be found out according to blue chip chromaticity coordinates and the linear equation of target color coordinates4。
S12, by the proportion data, the dispensing amount data, calculate red fluorescence powder volume, green in LED particle
Fluorescent powder volume, yellow fluorescent powder volume, patent yellow fluorescent powder volume；
Specifically, theoretical according to any chromaticity coordinates of CIE, mixed fluorescent powder chromaticity coordinates (x4,y4) and each fluorescent powder chromaticity coordinates
Relationship is as follows:
Wherein: PR, PG, PY, PF respectively indicate red fluorescence powder, green emitting phosphor, yellow fluorescent powder, patent yellow fluorescent powder
Luminous flux after being pierced by glue layer, (xr,yr) indicate red fluorescence powder chromaticity coordinates；(xg,yg) indicate green emitting phosphor chromaticity coordinates；
(xy,yy) indicate yellow fluorescent powder chromaticity coordinates；(xf,yf) indicate patent yellow fluorescent powder chromaticity coordinates.Wherein, luminous flux refer to according to
The derived quantity of the radiation flux of the standard human-eye visual characteristic evaluation of international regulations.
Specifically, it can be obtained according to luminous flux kernel model:
PB=PB0*e-alphaB*h
PR=0.5*PB0*betaR*(1-e-alphaB*h)/alphaB
PG=0.5*PB0*betaG*(1-e-alphaB*h)/alphaB
PY=0.5*PB0*betaY*(1-e-alphaB*h)/alphaB
PF=0.5*PB0*betaF*(1-e-alphaB*h)/alphaB (2)
Wherein: betaR, betaG, betaY, betaF respectively indicate red fluorescence powder, green emitting phosphor, yellow fluorescent powder,
The conversion ratio of patent yellow fluorescent powder is equal to unit volume transfer efficiency * fluorescent powder volume, can also be expressed as (unit volume
Transfer efficiency * overall volume) * volume fraction, PB, PR, PG, PY, PF respectively indicate red fluorescence powder, green emitting phosphor, blue
Chip, yellow fluorescent powder, patent yellow fluorescent powder are pierced by the luminous flux after glue layer, PB0Indicate the unit luminous flux of blue chip；
AlphaB indicates blue light in the energy loss of communication process.
Specifically, by, simultaneously divided by PR, and then obtaining following formula to PB, PG, PY, PF:
To ealphaB*hTaylor series expansion is carried out, then under first approximationAnd betaR, betaG,
BetaY, betaF and each fluorescent powder volume are linearly related, so formula (3) can be write as:
Wherein: LR, LG, LY, LF respectively indicate red fluorescence powder, green emitting phosphor, yellow fluorescent powder, patent yellow fluorescent powder
Physically unit volume conversion ratio；VR, VG, VY, VF respectively indicate the volume of each fluorescent powder in a LED particle；H indicates one
The colloid thickness of a LED chip.
To formula (1) molecule denominator simultaneously divided by PR, brings formula (4) into formula (1), obtains following formula:
It enablesFormula (5) may be expressed as:
According to formula (6), the chromaticity coordinates ((x based on least square method and each fluorescent powderr,yr)、(xg,yg)、(xy,yy)、
(xf,yf)), mixed chromaticity coordinates (x4,y4), the volume VR and VG of each LED particle can acquire L1, L2, L3 in each glass of glue.
It is S13, glimmering by the initial data, the red fluorescence powder volume, the green emitting phosphor volume, the yellow
Light powder product, the patent yellow fluorescent powder volume and the mixed fluorescent powder chromaticity coordinates, establish the LED using least square method
Match recommended models.
Specifically, (x is definedt,yt) it is target color coordinates, target color coordinates (x theoretical according to any chromaticity coordinates of CIEt,yt)
It may be expressed as: with the relationship of fluorescent powder chromaticity coordinates and blue chip chromaticity coordinates
To formula (7) molecule denominator with divided by PR, and by formula (4) andSubstitution formula (7)
The calculation formula of recommended models is matched to LED, formula is as follows:
According to L1, L2, the L3 formula (8) and found out, fluorescent powder chromaticity coordinates ((xr,yr)、(xg,yg)、(xy,yy)、(xf,
yf)), target color coordinates (xt,yt), blue chip chromaticity coordinates (xb,yb), volume VR, VG of each fluorescent powder in each glass of glue, VY,
VF, the colloid thickness h of each glass of glue, solves to obtain LR using least square method.
LG, LY, LF are solved according to L1=LG/LR, L2=LY/LR, L3=LF/LR.According to above-mentioned model solution process, base
In historical data, LED model coefficient L1, L2, L3, LR, LG, LY, LF can all be found out.
Specifically, auxiliary material data include the auxiliary materials data such as A glue, B glue, antisolvent precipitation powder, are defined in dispensing link, red glimmering
Light powder, green emitting phosphor, yellow fluorescent powder, patent yellow fluorescent powder, A glue, B glue, antisolvent precipitation powder weight respectively indicate are as follows: mr,
mg,my,mf,mAj,mBj,mk, density is expressed as pr,pg,py,pf,pAj,pBj,pk.According to solve obtained VR, VG, VY, VF with
And the weight m of fluorescent powder can be obtained in corresponding density and formula (9), (10), (11), (12)r,mg,my,mf, formula is as follows:
mr=pr*VR (9)
mg=pg*VG (10)
my=py*VY (11)
mf=pf*VF (12)
According to the specified requirements in dispensing, since the ratio of A glue, B glue is fixed as 0.4:1.6, the ratio of A glue and antisolvent precipitation powder
Example is 0.4:0.03, as shown in formula (13), (14):
mAj:mBj=0.4:1.6 (13)
mAj:mk=0.4:0.03 (14)
If the volume of A glue, B glue, antisolvent precipitation powder is VAj, VBj, VK, dispensing amount is that (dispensing amount is history equalization point to V at this time
Glue amount), formula is as follows:
VAj+VBj+VK+VR+VG+VY+VF=V (15)
According to formula (17) and obtained VR, VG, dispensing amount V, each material density is solved, acquires the quality of A glue.By mass ratio
Example is converted into mAj=0.4, the quality proportioning of each material can be obtained, then the quality proportioning of each material is as follows:
Red fluorescence powder: green emitting phosphor: yellow fluorescent powder: patent yellow fluorescent powder: A glue: B glue:
After obtaining mass ratio, then LED proportion recommended models are established according to above-mentioned calculated result.
Further, S12 includes: S21, according to the LED proportion recommended models, the dispensing amount data, the colloid
Thickness and the auxiliary material data obtain mass ratio；
S22, according to mass ratio, establish the LED dispensing amount recommended models using least square method.
Specifically, recommended models institute recommended ratio is matched according to LED, weight/power ratio is matched based on practical every glass of glue, is solved every
The dispensing amount of cup glue, carries out dispensing amount recommendation, and solution procedure is as follows:
Specifically, the fluorescent powder proportion and dispensing amount V that recommended models are matched according to LED, are expressed as glue amount thickness for dispensing amount V
Spend the function of h, i.e. V=f (h).
Define red fluorescence powder, green emitting phosphor, yellow fluorescent powder, patent yellow fluorescent powder, A glue, B glue, antisolvent precipitation powder
Weight ratio are as follows:
mr:mg:my:mf:mAj:mBj:mk=a:b:c:d:e:f:g
Define red fluorescence powder, green emitting phosphor, yellow fluorescent powder, patent yellow fluorescent powder, A glue, B glue, antisolvent precipitation powder
Density ratio are as follows:
pr,pg,py,pf,pAj,pBj,pk
It can then obtain:
pr*rr:pg*rg:py*ry:pf*rf:pAj*rAj:pBj*rBj:pk*rk=a:b:c:d:e:f:g (18)
Enable R=rr+rg+ry+rf+rAj+rBj+rk
Match glue weight data, the density of each material, formula (18) according to practical, red fluorescence in a LED particle can be obtained
Powder, green emitting phosphor, yellow fluorescent powder, patent yellow fluorescent powder, A glue, B glue, antisolvent precipitation powder volume ratio rr:rg:ry:rf:rAj:
rBj:rk, can be obtained a LED particle in each fluorescent powder cubature formula it is as follows:
The function for being h by each fluorescent powder product representation, can obtain according to formula (19)~formula (22):
VR, VG, VY, VF and V are expressed as to the function of h, substituted into formula (8), then LED dispensing amount can be obtained and recommend mould
Type, its calculation formula is as follows:
LR is the unit volume conversion ratio of the red fluorescence powder, rr、rg、ry、rfRespectively described in a LED particle
Red fluorescence powder, the green emitting phosphor, the yellow fluorescent powder, the patent yellow fluorescent powder volume ratio, f (h) be h with
The function of VR, VG.
Specifically, according to formula (27), it is based on least square method, passes through (xr,yr)、(xg,yg)、(xy,yy)、(xf,yf)、
(xb,yb)、(xt,yt)、L1、L2、L3、LR、rr、rg、ry、rfColloid thickness h is calculated.It, can be by h further according to support parameter
It is converted to dispensing amount.
Further, S3 includes:
S31, default chromaticity coordinates is obtained by preset data；Wherein, the default chromaticity coordinates includes default red fluorescence powder
Chromaticity coordinates, default green emitting phosphor chromaticity coordinates are preset yellow fluorescent powder chromaticity coordinates, default patent yellow fluorescent powder chromaticity coordinates, are preset
Blue chip chromaticity coordinates；
Specifically, according to product to be produced, the parameter of the used raw material of its available production, i.e. present count
According to.The wave of each fluorescent powder and default blue chip in raw material is obtained by the parameter of raw material and the wavelength of its excitation
Long, inquiry optical wavelength corresponds to chromaticity coordinates table, and inquiry obtains default blue chip and the corresponding chromaticity coordinates of each phosphor wavelength.
S32, default mixed fluorescent powder chromaticity coordinates is calculated by the default chromaticity coordinates；
Specifically, mixed fluorescent powder chromaticity coordinates (x4,y4) can by red fluorescence powder, straight line where green emitting phosphor, with
Intersection point (the x of straight line where blue chip chromaticity coordinates, target color coordinates1,y1), straight line where red fluorescence powder, yellow fluorescent powder,
With the intersection point (x of straight line where blue chip chromaticity coordinates, target color coordinates2,y2), red fluorescence powder, patent yellow fluorescence place are straight
Intersection point (the x of straight line where line, with blue chip chromaticity coordinates, target color coordinates3,y3) calculate acquisition.Wherein, x1,x2,x3Be averaged
Value is x4, y can be found out according to the linear equation of default blue chip chromaticity coordinates and target color coordinates4。
S33, target color coordinates are obtained, the default chromaticity coordinates is inputted into the LED and matches recommended models, utilizes minimum two
Multiplication obtains the default proportion.
Specifically, for product to be produced that is, target color coordinates (xt,yt) it is known that by target color coordinates and default chromaticity coordinates
It inputs LED and matches model, then can obtain default proportion, default proportion is finally converted into client and often uses stochiometric form.
Further, S3 includes:
S31, it is obtained according to the default proportion and matches weight/power ratio；
Specifically, it matches the fluorescent powder that recommended models are recommended according to LED to match, weighing material, based on practical every glass of glue
Match weight/power ratio, solve every glass of glue dispensing amount, carry out dispensing amount recommendation.
Dispensing amount V is expressed as the function of glue amount thickness h, i.e. V=f (h) by known brackets cavity size.
S32, according to it is described with weight/power ratio obtain default red fluorescence powder, default green emitting phosphor, default yellow fluorescent powder,
The volume ratio of default patent yellow fluorescent powder；
Specifically, it can be solved in a LED particle according to formula (18), the reality of each material with weight/power ratio, corresponding density
The volume ratio of each fluorescent powder；
S33, by the mixed fluorescent powder chromaticity coordinates, the target color coordinates, the default chromaticity coordinates and the volume ratio
The LED dispensing amount recommended models are inputted, obtain the default dispensing amount using least square method.
Specifically, each fluorescent powder volume is converted into the function of h according to formula (23)~(26)；
By each fluorescent powder chromaticity coordinates, default blue chip chromaticity coordinates, L1, L2, L3, LR, LG, LY, LF, rr、rg、ry、rfBand
Enter formula (27), colloid thickness h is calculated using least square method.
Finally, calculating corresponding dispensing amount further according to the glue thickness h that bracket cavity size and step 4 acquire.
As shown in Fig. 2, the embodiment of the invention also provides a kind of four based on least square method fluorescent powder LED proportion and
Dispensing amount recommendation apparatus, comprising: input terminal, LED proportion recommending module, LED dispensing amount recommending module and output end；Wherein,
Input terminal is for inputting product blue chip model to be produced, each fluorescent powder model, dispensing bracket model, AB glue
Material data needed for the production such as model, antisolvent precipitation powder model；
LED matches recommending module and is used to match recommended models according to above-mentioned LED, is calculated by material data default
Proportion, and default proportion is exported to output end；
LED dispensing amount recommending module is used to pass through material data and default proportion according to above-mentioned LED dispensing amount recommended models
Default dispensing amount is calculated, and default dispensing amount is exported to output end；
Output end is for exporting the default proportion of display and default dispensing amount.
Four based on least square method fluorescent powder LED provided by the invention proportion and dispensing amount recommended method, using big
Data technique is based on least square method algorithm by historical data, establishes LED proportion recommended models and LED dispensing amount is recommended
Model, when user inputs material information to be produced and product information, LED matches the proportion of the available recommendation of recommended models
Data, the available recommendation dispensing amount of LED dispensing amount recommended models can help engineer to shorten sample, test-manufactr ing time, reduce
Production cost improves production efficiency and yield.
The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and it cannot be said that
Specific implementation of the invention is only limited to these instructions.For those of ordinary skill in the art to which the present invention belongs, exist
Under the premise of not departing from present inventive concept, a number of simple deductions or replacements can also be made, all shall be regarded as belonging to of the invention
Protection scope.
Claims (9)
1. a kind of four based on least square method fluorescent powder LED proportion and dispensing amount recommended method characterized by comprising
S1, LED proportion recommended models are established using least square method according to historical data；
S2, model foundation LED dispensing amount recommended models are matched by the LED；
S3, default proportion is obtained using preset data and LED proportion recommended models；
S4, default dispensing amount is obtained according to the default proportion and the LED dispensing amount recommended models.
2. four fluorescent powder LED proportion according to claim 1 and dispensing amount recommended method, which is characterized in that described to go through
History data include: red fluorescence powder chromaticity coordinates, green emitting phosphor chromaticity coordinates, yellow fluorescent powder chromaticity coordinates, patent yellow fluorescence pink colour
Coordinate, blue chip chromaticity coordinates, proportion data, target color coordinates, dispensing amount data, colloid thickness and auxiliary material data.
3. two fluorescent powder LED according to claim 2 proportion and dispensing amount recommended method, which is characterized in that S1 includes:
S11, pass through the red fluorescence powder chromaticity coordinates, the green emitting phosphor chromaticity coordinates, the yellow fluorescent powder chromaticity coordinates, institute
Patent yellow fluorescent powder chromaticity coordinates, the blue chip chromaticity coordinates, the target color coordinates are stated, mixed fluorescent powder chromaticity coordinates is calculated；
S12, by the proportion data, the dispensing amount data, calculate red fluorescence powder volume, green fluorescence in LED particle
Powder product, yellow fluorescent powder volume, patent yellow fluorescent powder volume；
S13, pass through the initial data, the red fluorescence powder volume, the green emitting phosphor volume, the yellow fluorescent powder
Volume, the patent yellow fluorescent powder volume and the mixed fluorescent powder chromaticity coordinates are established the LED using least square method and are matched
Recommended models.
4. two fluorescent powder LED proportion according to claim 3 and dispensing amount recommended method, which is characterized in that S11 packet
It includes:
S111, pass through the red fluorescence powder chromaticity coordinates, the green emitting phosphor chromaticity coordinates, the blue chip chromaticity coordinates, institute
Target color coordinates are stated, the first coordinate is calculated；
S112, pass through the red fluorescence powder chromaticity coordinates, the yellow fluorescent powder chromaticity coordinates, the blue chip chromaticity coordinates, institute
Target color coordinates are stated, the second coordinate is calculated；
S113, by the red fluorescence powder chromaticity coordinates, the patent yellow fluorescent powder chromaticity coordinates, the blue chip chromaticity coordinates,
The target color coordinates calculate third coordinate；
S114, the mixed fluorescent powder chromaticity coordinates is calculated by first coordinate, second coordinate and the third coordinate.
5. two fluorescent powder LED proportion according to claim 3 and dispensing amount recommended method, which is characterized in that the LED
Match recommended models calculation formula are as follows:
(xr,yr) it is the red fluorescence powder chromaticity coordinates, (xg,yg) it is the green emitting phosphor chromaticity coordinates, (xy,yy) it is the Huang
Color fluorescent powder chromaticity coordinates, (xf,yf) it is the patent yellow fluorescent powder chromaticity coordinates, (xb,yb) it is blue chip chromaticity coordinates, (xt,yt)
For target color coordinates；LR is the unit volume conversion ratio of red fluorescence powder, and VR is red fluorescence powder described in a LED particle
Product, VG are that original Green phosphor product, VY are yellow fluorescent powder volume described in a LED particle, VF in a LED particle
For patent yellow fluorescent powder volume described in a LED particle, h is the colloid thickness, and L1, L2, L3 are that LED proportion is recommended
Model coefficient.
6. two fluorescent powder LED proportion according to claim 5 and dispensing amount recommended method, which is characterized in that S12 packet
It includes:
S21, recommended models, the dispensing amount data, the colloid thickness and the auxiliary material data are matched according to the LED, obtained
Take mass ratio；
S22, according to mass ratio, establish the LED dispensing amount recommended models using least square method.
7. two fluorescent powder LED proportion according to claim 6 and dispensing amount recommended method, which is characterized in that the LED
Dispensing amount recommended models calculation formula are as follows:
Wherein,
LR is the unit volume conversion ratio of the red fluorescence powder, rr、rg、ry、rfRespectively red described in a LED particle is glimmering
Light powder, the green emitting phosphor, the yellow fluorescent powder, the patent yellow fluorescent powder volume ratio, f (h) is h and VR, VG
Function.
8. two fluorescent powder LED according to claim 1 proportion and dispensing amount recommended method, which is characterized in that S3 includes:
S31, default chromaticity coordinates is obtained by preset data；Wherein, the default chromaticity coordinates includes that default red fluorescence pink colour is sat
Mark, default green emitting phosphor chromaticity coordinates preset yellow fluorescent powder chromaticity coordinates, default patent yellow fluorescent powder chromaticity coordinates, default blue
Chip chromaticity coordinates；
S32, default mixed fluorescent powder chromaticity coordinates is calculated by the default chromaticity coordinates；
S33, target color coordinates are obtained, the default chromaticity coordinates is inputted into the LED and matches recommended models, utilizes least square method
Obtain the default proportion.
9. two fluorescent powder LED according to claim 8 proportion and dispensing amount recommended method, which is characterized in that S3 includes:
S31, it is obtained according to the default proportion and matches weight/power ratio；
S32, it is obtained according to weight/power ratio and presets red fluorescence powder, default green emitting phosphor, preset yellow fluorescent powder, is default
The volume ratio of patent yellow fluorescent powder；
S33, the mixed fluorescent powder chromaticity coordinates, the target color coordinates, the default chromaticity coordinates and the volume ratio are inputted
The LED dispensing amount recommended models obtain the default dispensing amount using least square method.
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