CN109802028A - Two fluorescent powder LED proportion and dispensing amount recommended method based on least square method - Google Patents
Two fluorescent powder LED proportion and dispensing amount recommended method based on least square method Download PDFInfo
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Abstract
The present invention relates to a kind of two based on least square method fluorescent powder LED proportion and dispensing amount recommended methods, comprising: LED dispensing proportion recommended models S1, are established according to initial data；S2, default proportion is obtained using preset data and LED dispensing proportion recommended models；S3, default dispensing amount is obtained according to the default proportion and LED dispensing proportion recommended models.Two based on least square method fluorescent powder LED proportion and dispensing amount recommended method provided by the invention, algorithm, which is based on, by historical data establishes LED proportion recommended models and LED dispensing amount recommended models, when user inputs correlative information and product information, the model established through the embodiment of the present invention, available recommended ratio and recommendation dispensing amount, it helps engineer to shorten sample, test-manufactr ing time, reduces production cost, improve production efficiency and yield.
Description
Technical field
The invention belongs to LED manufacture fields, and in particular to a kind of two 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.
Currently, the packaged type of white light LEDs relies primarily on " Blue-Ray technology " and fluorescent powder cooperatively forms white light, will have one
After the yellow fluorescent powder of standing wave section is mixed with epoxy or silica gel, it is potted in blue-light LED chip surrounding.Due to yellow fluorescent powder cost
It is higher and lower using single yellow fluorescent powder colour rendering index, so general seldom make white light with single yellow fluorescent powder
LED, but equiwavelength's yellow is deployed by red fluorescence powder, green emitting phosphor.
However, influence due to two kinds of fluorescent powders to LED colour rendering index, colour temperature is different, reasonable fluorescent powder proportion and
The proportion (abbreviation rubber powder ratio) of fluorescent powder and glue, it is most important to white light LEDs luminescent properties, while the dispensing amount of every glass of glue
It will affect white-light emitting efficiency.And the setting of fluorescent powder proportion and dispensing amount at present depends on the artificial experience of engineer,
The fluorescent powder allotment process for not forming set of system, causes the process error-prone and need to verify repeatedly, test-manufactr ing time is long, time-consuming
Effort significantly 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 two 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 two based on least square method fluorescent powder LED proportion and dispensing amount recommendation sides
Method, comprising:
S1, LED dispensing proportion recommended models are established according to initial data；Wherein, the initial data includes original Red color
Fluorescent powder chromaticity coordinates, original green fluorescent powder chromaticity coordinates, initial blue color chip chromaticity coordinates, original proportion data, original object color
Coordinate, original dispensing amount data and original auxiliary material data；
S2, default proportion is obtained using preset data and LED dispensing proportion recommended models；Wherein, the present count
According to including red fluorescence powder chromaticity coordinates, green emitting phosphor chromaticity coordinates, blue chip chromaticity coordinates and goal-selling chromaticity coordinates；
S3, default dispensing amount is obtained according to the default proportion and LED dispensing proportion recommended models.
Be at of the invention one in embodiment, the LED dispensing proportion recommended models include LED proportion recommended models and
LED dispensing amount recommended models.
It is in embodiment at of the invention one, S1 includes:
S11, the original Red color fluorescent powder chromaticity coordinates, the original green fluorescent powder chromaticity coordinates, the original indigo plant are obtained
Color chip chromaticity coordinates, the original object chromaticity coordinates, the original proportion data and the original dispensing amount data, and establish
LED matches recommended models；
S12, LED dispensing amount recommended models are established according to the original auxiliary material data and LED proportion recommended models.
It is in embodiment at of the invention one, S11 includes:
S111, the original Red color fluorescent powder chromaticity coordinates, original green fluorescence pink colour seat are obtained by historical data
Mark, the initial blue color chip chromaticity coordinates and original object chromaticity coordinates；
S112, pass through the original Red color fluorescent powder chromaticity coordinates, the original green fluorescent powder chromaticity coordinates, the original indigo plant
Color chip chromaticity coordinates and original object chromaticity coordinates calculate original yellow fluorescent powder chromaticity coordinates；
S113, by the original proportion data, the original dispensing amount data, it is glimmering to calculate original Red color in LED particle
Light powder product and original green fluorescent powder volume；Wherein, the dispensing amount data include initial colloid thickness；
S114, the original Red color fluorescent powder volume, the original green fluorescent powder volume and the original yellow are utilized
Fluorescent powder chromaticity coordinates establishes the LED proportion recommended models.
It is in embodiment at of the invention one, the LED matches recommended models calculation formula are as follows:
Wherein,
(xr,yr) it is original Red color fluorescent powder chromaticity coordinates, (xg,yg) it is original green fluorescent powder chromaticity coordinates, (xb,yb) it is original
Beginning blue chip chromaticity coordinates, (xt,yt) it is original object chromaticity coordinates；LR is the unit volume conversion ratio of original Red color fluorescent powder, VR
For the volume of original Red color fluorescent powder described in a LED particle, VG is original green fluorescent powder described in a LED particle
Volume, h are the initial colloid thickness,Recommended models coefficient is matched for LED described in this.
It is in embodiment at of the invention one, S12 includes:
S121, the original auxiliary material data are obtained by historical data；
S122, the LED dispensing amount recommendation mould is established according to LED proportion recommended models and the original auxiliary material data
Type.
It is the LED dispensing amount recommended models calculation formula in embodiment at of the invention one are as follows:
Wherein,
(xr,yr) it is original Red color fluorescent powder chromaticity coordinates, (xg,yg) it is original green fluorescent powder chromaticity coordinates, (xb,yb) it is original
Beginning blue chip chromaticity coordinates, (xt,yt) it is original object chromaticity coordinates；LR is the unit volume conversion ratio of original Red color fluorescent powder, VR
For the volume of original Red color fluorescent powder described in a LED particle, VG is original green fluorescent powder described in a LED particle
Volume, h are the initial colloid thickness, and f (h) is the function of h and VRVG,Recommended models are matched for LED described in this
Coefficient, rrAnd rgThe volume ratio of original Red color fluorescent powder and original green fluorescent powder described in one LED particle.
It is in embodiment at of the invention one, S2 includes:
S21, the red fluorescence powder chromaticity coordinates, the green emitting phosphor chromaticity coordinates, the indigo plant are obtained by excitation wavelength
Color chip chromaticity coordinates；
S22, pass through the red fluorescence powder chromaticity coordinates, the green emitting phosphor chromaticity coordinates, the blue chip chromaticity coordinates
With the default chromaticity coordinates, yellow fluorescent powder chromaticity coordinates is calculated；
S23, by the yellow fluorescent powder chromaticity coordinates, the default chromaticity coordinates, the red fluorescence powder chromaticity coordinates, described green
Color fluorescent powder chromaticity coordinates, the blue chip chromaticity coordinates input the LED and match recommended models, obtain institute using least square method
State default proportion.
It is in embodiment at of the invention one, S3 includes:
S31, it is obtained according to the default proportion and matches weight/power ratio；
S32, the red fluorescence powder and the green emitting phosphor volume ratio are obtained with weight/power ratio according to described；
S33, by the yellow fluorescent powder chromaticity coordinates, the default chromaticity coordinates, the red fluorescence powder chromaticity coordinates, described green
Color fluorescent powder chromaticity coordinates, the blue chip chromaticity coordinates and the volume ratio input the LED dispensing amount model, utilize minimum two
Multiplication obtains the default dispensing amount.
Compared with prior art, beneficial effects of the present invention:
Two based on least square method fluorescent powder LED proportion and dispensing amount recommended method provided by the invention, by going through
History data are based on least square method and establish LED proportion recommended models and LED dispensing amount recommended models, when user inputs correlative
Expect information and when product information, the model established through the embodiment of the present invention and recommends dispensing amount at available recommended ratio, side
It helps engineer to shorten sample, test-manufactr ing time, reduces production cost, improve production efficiency and yield.
Detailed description of the invention
Fig. 1 is a kind of two 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 two 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 two based on least square method fluorescent powder LED proportion provided by the invention
With the structural schematic diagram of dispensing amount recommended method；A kind of position Fig. 2 two based on least square method provided in an embodiment of the present invention
The structural schematic diagram of fluorescent powder LED proportion and dispensing amount recommendation apparatus.It is the main red fluorescence powder of the packaged type of white light LEDs, green
Color fluorescent powder is deployed into yellow fluorescent powder, then by forming white light after blue 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 dispensing proportion recommended models are established according to initial data；Wherein, the initial data includes original Red color
Fluorescent powder chromaticity coordinates, original green fluorescent powder chromaticity coordinates, initial blue color chip chromaticity coordinates, original proportion data, original object color
Coordinate, original dispensing amount data and original auxiliary material data；
S2, default proportion is obtained using preset data and LED dispensing proportion recommended models；Wherein, the present count
According to including red fluorescence powder chromaticity coordinates, green emitting phosphor chromaticity coordinates, blue chip chromaticity coordinates and goal-selling chromaticity coordinates；
S3, default dispensing amount is obtained according to the default proportion and LED dispensing proportion recommended models.
Further, the LED dispensing proportion recommended models include that LED proportion recommended models and LED dispensing amount recommend mould
Type.
Further, S1 includes: S11, obtains the original Red color fluorescent powder chromaticity coordinates, the original green fluorescence pink colour
Coordinate, the initial blue color chip chromaticity coordinates, the original object chromaticity coordinates, the original proportion data and the original dispensing
Data are measured, and establish LED proportion recommended models；
S12, LED dispensing amount recommended models are established according to the original auxiliary material data and LED proportion recommended models.
Further, S11 includes: S111, by historical data obtains the original Red color fluorescent powder chromaticity coordinates, the original
Beginning green emitting phosphor chromaticity coordinates, the initial blue color chip chromaticity coordinates and original object chromaticity coordinates；
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, it is blue close chip developing wavelength with
And the developing wavelength etc. of the product of production.Then, corresponding chromaticity coordinates table is inquired according to developing wavelength, it is glimmering original Red color can be obtained
Light pink colour coordinate, original green fluorescent powder chromaticity coordinates, initial blue color chip chromaticity coordinates and original object chromaticity coordinates.Secondly, may be used also
To obtain red fluorescence powder, the proportion data of green emitting phosphor and AB glue, antisolvent precipitation powder content etc. from the said goods data
Auxiliary material data.
S112, pass through the original Red color fluorescent powder chromaticity coordinates, the original green fluorescent powder chromaticity coordinates, the original indigo plant
Color chip chromaticity coordinates and original object chromaticity coordinates calculate original yellow fluorescent powder chromaticity coordinates；
Specifically, white light is matched, yellow fluorescent powder, definition is generally deployed by red fluorescence powder and green emitting phosphor
The original yellow fluorescent powder chromaticity coordinates for the yellow fluorescent powder that red, green fluorescence powder is mixed to get is (x4,y4), then the point is original red
Color fluorescent powder chromaticity coordinates (xr,yr) and original green fluorescent powder chromaticity coordinates (xg,yg) where straight line and initial blue color chip chromaticity coordinates
(xb,yb) and original object chromaticity coordinates (xt,yt) where straight line intersection point.The theoretical, (x according to any chromaticity coordinates of CIE4,y4) with it is glimmering
The relationship of light pink colour coordinate is as follows:
Wherein: PR, PG respectively indicate red fluorescence powder and green emitting phosphor is pierced by the luminous flux after glue layer, wherein light
Flux refers to the derived quantity of the radiation flux of the standard human-eye visual characteristic evaluation according to international regulations.
S113, by the original proportion data, the original dispensing amount data, it is glimmering to calculate original Red color in LED particle
Light powder product and original green fluorescent powder volume；Wherein, the dispensing amount data include initial colloid thickness；
Specifically, it can be obtained according to luminous flux kernel model:
Wherein: betaR, betaG respectively indicate the conversion ratio of red fluorescence powder and green emitting phosphor, are 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
Respectively indicate the luminous flux that red fluorescence powder, green emitting phosphor and blue chip are pierced by after glue layer, PB0Indicate blue chip
Unit luminous flux；AlphaB indicates blue light in the energy loss of communication process；H indicates the initial colloid thickness of a LED chip.
Specifically, the content in S113 is by, simultaneously divided by PR, and then obtaining following formula to PB, PG:
It is rightTaylor series expansion is carried out, then under first approximationAnd betaR, betaG with it is glimmering
Light powder accumulates in linear correlation, so formula (3) can be write as:
Wherein: LR, LG respectively indicate the physically unit volume conversion ratio for red fluorescence powder and green emitting phosphor；
VG, VR respectively indicate in a LED particle volume of red fluorescence powder and green emitting phosphor i.e. original Red color fluorescent powder volume and
Original green fluorescent powder volume；
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 of least square method and fluorescent powder is utilizedr,yr) and (xg,yg)、(x4,y4), it is each
The volume VR and VG of each LED particle can acquire L1 in cup glue.
S114, the original Red color fluorescent powder volume, the original green fluorescent powder volume and the original yellow are utilized
Fluorescent powder chromaticity coordinates establishes the LED proportion recommended models.
Specifically, ((x is definedt,yt) it is original object chromaticity coordinates, target color coordinates theoretical according to any chromaticity coordinates of CIE
((xt,yt) 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) obtains LED proportion and recommends mould
The calculation formula of type, formula are as follows:
Wherein, (xr,yr) it is original Red color fluorescent powder chromaticity coordinates, (xg,yg) it is original green fluorescent powder chromaticity coordinates, (xb,
yb) it is initial blue color chip chromaticity coordinates, (xt,yt) it is original object chromaticity coordinates；LR is that the unit volume of original Red color fluorescent powder turns
Rate is changed, VR is the volume of original Red color fluorescent powder described in a LED particle, and VG is original green described in a LED particle
The volume of fluorescent powder, h are the initial colloid thickness,Recommended models coefficient is matched for LED described in this.According to formula
, and (x (8) and the L1 that has found outr,yr)、(xg,yg)、(xt,yt)、(xb,yb), in each glass of glue the volume VR of each fluorescent powder and
VG, initial colloid thickness h solve LR using least square method.
According toSolve LG.According to above-mentioned model solution process, it is based on historical data, LED matches the coefficient of model
L1, LR, LG can all be found out.
Specifically, original auxiliary material data packet includes the auxiliary materials data such as A glue, B glue, antisolvent precipitation powder.It is defined in dispensing link, it is red
Color fluorescent powder, green emitting phosphor, A glue, B glue, antisolvent precipitation powder weight respectively indicate are as follows: mr,mg,mAj,mBj,mk, density can
It is expressed as pr,pg,pAj,pBj,pk.According to LED match recommended models VR, VG for solving and corresponding density and formula (9),
(10), then the weight m of red fluorescence powder and green fluorescence point can be obtainedr,mg, formula is as follows:
mr=pr*VR(9)
mg=pg*VG(10)
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 (11), (12):
mAj:mBj=0.4:1.6 (11)
mAj:mk=0.4:0.03 (12)
If the volume of A glue, B glue, antisolvent precipitation powder is VAj, VBj, VK, dispensing amount V, it is preferred that dispensing amount V is flat for history
Equal dispensing amount, formula are as follows:
VAj+VBj+VK+VR+VG=V (13)
According to formula (15) 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, can obtain quality proportioning is red fluorescence powder: green emitting phosphor: A glue: B glue:
After obtaining mass ratio, then LED proportion recommended models are established according to above-mentioned calculated result.
Further, S12 includes: S121, by historical data obtains the original auxiliary material data；
S122, the LED dispensing amount recommendation mould is established according to LED proportion recommended models and the original auxiliary material data
Type.
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 the weight ratio of red fluorescence powder, green emitting phosphor, A glue, B glue, antisolvent precipitation powder are as follows: mr:mg:mAj:mBj:mk=
A:b:c:d:e,
Define the density ratio of red fluorescence powder, green emitting phosphor, A glue, B glue, antisolvent precipitation powder are as follows:
pr,pg,pAj,pBj,pk,
Then pr*rr:pg*rg:pAj*rAj:pBj*rBj:pk*rk=a:b:c:d:e (16)
Enable R=rr+rg+rAj+rBj+rk
Pass through formula (16) according to weight data and density data, the volume ratio of each material in an available LED particle
rr:rg:rAj:rBj:rk, can be obtained a LED particle in each fluorescent powder cubature formula it is as follows:
The function that can be h by red fluorescence powder and Green phosphor product representation according to formula (17) and (18), i.e.,
VR, VG and V are expressed as to the function of h, substitutes into formula (8), then LED dispensing amount recommended models can be obtained, is counted
It is as follows for calculating formula:
Wherein, (xr,yr) it is original Red color fluorescent powder chromaticity coordinates, (xg,yg) it is original green fluorescent powder chromaticity coordinates, (xb,
yb) it is initial blue color chip chromaticity coordinates, (xt,yt) it is original object chromaticity coordinates；LR is that the unit volume of original Red color fluorescent powder turns
Rate is changed, VR is the volume of original Red color fluorescent powder described in a LED particle, and VG is original green described in a LED particle
The volume of fluorescent powder, f (h) are the function of h and VR, VG,Recommended models coefficient is matched for LED described in this.
By formula (21), it is based on least square method, passes through (xr,yr)、(xg,yg)、(xb,yb)、(xt,yt)、L1、LR、rr、
rgH is calculated.Further according to support parameter, h can be converted to dispensing amount.
Further, S2 includes: S21, by excitation wavelength obtains the red fluorescence powder chromaticity coordinates, the green fluorescence
Pink colour coordinate, the blue chip chromaticity coordinates；
Specifically, according to product to be produced, each fluorescent powder and blue chip in raw material are obtained by excitation wavelength
Wavelength, inquiry optical wavelength correspond to chromaticity coordinates table, inquires and obtain blue chip and the corresponding chromaticity coordinates of each phosphor wavelength.
S22, pass through the red fluorescence powder chromaticity coordinates, the green emitting phosphor chromaticity coordinates, the blue chip chromaticity coordinates
With the default chromaticity coordinates, yellow fluorescent powder chromaticity coordinates is calculated；
Specifically, for product to be produced that is, target color coordinates (xt,yt) it is known that yellow fluorescent powder chromaticity coordinates (x4,y4)
For the intersection point of straight line where red, straight line and blue chip chromaticity coordinates where green fluorescence pink colour coordinate and target color coordinates.
S23, by the yellow fluorescent powder chromaticity coordinates, the default chromaticity coordinates, the red fluorescence powder chromaticity coordinates, described green
Color fluorescent powder chromaticity coordinates, the blue chip chromaticity coordinates input the LED and match recommended models, obtain institute using least square method
State default proportion.
Specifically, a LED particle can be solved with weight/power ratio, corresponding density according to formula (16) and the reality of each material
In red fluorescence powder and green emitting phosphor volume ratio rr、rg。
Specifically, according to model built, V1 is solved using least square method by formula (7), solves VR by formula (9).Again
According to the definition V1=VG/VR and calculated result of V1, VG is solved；According to raw material information, (each material of RGB wavelength, glue is close
Degree), using VR, VG as a result, acquiring m by formula (9)~formula (15)r,mg,mAj,mBj,mkQuality (this is Unit Weight glue
A variety of materials quality in water, that is, quality proportioning), then default proportion can be obtained according to quality, finally turn default proportion
It is changed to client and often uses stochiometric form.
Further, S3 includes: S31, is obtained according to the default proportion and match 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, the red fluorescence powder and the green emitting phosphor volume ratio are obtained with weight/power ratio according to described；
Specifically, one can be solved with weight/power ratio, corresponding density according to the reality of formula (16), each fluorescent powder and auxiliary material
Red fluorescence powder and green emitting phosphor volume ratio r in LED particler、rg；Then according to formula (19), (20) by the body of each fluorescent powder
Product is converted into the function of h.
S33, by the yellow fluorescent powder chromaticity coordinates, the default chromaticity coordinates, the red fluorescence powder chromaticity coordinates, described green
Color fluorescent powder chromaticity coordinates, the blue chip chromaticity coordinates and the volume ratio input the LED dispensing amount model, utilize minimum two
Multiplication obtains the default dispensing amount.
Specifically, by fluorescent powder chromaticity coordinates, blue chip chromaticity coordinates, L1, LR, rr、rgIt brings formula (21) into, utilizes minimum two
Colloid thickness h is calculated in multiplication, and default dispensing amount finally is calculated further according to dispensing bracket cavity size and h.
As shown in Fig. 2, the embodiment of the invention also provides a kind of two 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.
Two based on least square method fluorescent powder LED proportion and dispensing amount recommended method provided by the invention, by going through
History data are based on algorithm and establish LED proportion recommended models and LED dispensing amount recommended models, when user inputs correlative information
When with product information, the model established through the embodiment of the present invention, available recommended ratio and recommend dispensing amount, help engineering
Teacher shortens sample, test-manufactr ing time, reduces 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 two based on least square method fluorescent powder LED proportion and dispensing amount recommended method characterized by comprising
S1, LED dispensing proportion recommended models are established according to initial data；Wherein, the initial data includes original Red color fluorescence
Pink colour coordinate, original green fluorescent powder chromaticity coordinates, initial blue color chip chromaticity coordinates, original proportion data, original object chromaticity coordinates,
Original dispensing amount data and original auxiliary material data；
S2, default proportion is obtained using preset data and LED dispensing proportion recommended models；Wherein, the preset data packet
Include red fluorescence powder chromaticity coordinates, green emitting phosphor chromaticity coordinates, blue chip chromaticity coordinates and goal-selling chromaticity coordinates；
S3, default dispensing amount is obtained according to the default proportion and LED dispensing proportion recommended models.
2. two fluorescent powder LED proportion according to claim 1 and dispensing amount recommended method, which is characterized in that the LED
Dispensing proportion recommended models include LED proportion recommended models and LED dispensing amount recommended models.
3. two fluorescent powder LED according to claim 2 proportion and dispensing amount recommended method, which is characterized in that S1 includes:
S11, the original Red color fluorescent powder chromaticity coordinates, the original green fluorescent powder chromaticity coordinates, the initial blue color core are obtained
Piece chromaticity coordinates, the original object chromaticity coordinates, the original proportion data and the original dispensing amount data, and establish LED and match
Compare recommended models；
S12, LED dispensing amount recommended models are established according to the original auxiliary material data and LED proportion 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, the original Red color fluorescent powder chromaticity coordinates, the original green fluorescent powder chromaticity coordinates, institute are obtained by historical data
State initial blue color chip chromaticity coordinates and original object chromaticity coordinates；
S112, pass through the original Red color fluorescent powder chromaticity coordinates, the original green fluorescent powder chromaticity coordinates, the initial blue color core
Piece chromaticity coordinates and original object chromaticity coordinates calculate original yellow fluorescent powder chromaticity coordinates；
S113, by the original proportion data, the original dispensing amount data, calculate original red fluorescence powder in LED particle
Volume and original green fluorescent powder volume；Wherein, the dispensing amount data include initial colloid thickness；
S114, the original Red color fluorescent powder volume, the original green fluorescent powder volume and the original yellow fluorescence are utilized
Pink colour coordinate establishes the LED proportion recommended models.
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:
Wherein,
(xr,yr) it is original Red color fluorescent powder chromaticity coordinates, (xg,yg) it is original green fluorescent powder chromaticity coordinates, (xb,yb) it is original indigo plant
Color chip chromaticity coordinates, (xt,yt) it is original object chromaticity coordinates；LR is the unit volume conversion ratio of original Red color fluorescent powder, VR mono-
The volume of original Red color fluorescent powder described in a LED particle, VG are the body of original green fluorescent powder described in a LED particle
Product, h are the initial colloid thickness,Recommended models coefficient is matched for the LED.
6. two fluorescent powder LED proportion according to claim 3 and dispensing amount recommended method, which is characterized in that S12 packet
It includes:
S121, the original auxiliary material data are obtained by historical data；
S122, the LED dispensing amount recommended models are established according to LED proportion recommended models and the original auxiliary material data.
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,
(xr,yr) it is the original Red color fluorescent powder chromaticity coordinates, (xg,yg) it is the original green fluorescent powder chromaticity coordinates, (xb,yb)
For the initial blue color chip chromaticity coordinates, (xt,yt) it is the original object chromaticity coordinates；LR is the original Red color fluorescent powder
Unit volume conversion ratio, VR are the volume of original Red color fluorescent powder described in a LED particle, and VG is institute in a LED particle
The volume of original green fluorescent powder is stated, h is the initial colloid thickness, and f (h) is the function of h and VR, VG,For institute
State LED proportion recommended models coefficient, rrAnd rgOriginal Red color fluorescent powder described in one LED particle and original green fluorescent powder
Volume ratio.
8. two fluorescent powder LED according to claim 2 proportion and dispensing amount recommended method, which is characterized in that S2 includes:
S21, the red fluorescence powder chromaticity coordinates, the green emitting phosphor chromaticity coordinates, the blue core are obtained by excitation wavelength
Piece chromaticity coordinates；
S22, pass through the red fluorescence powder chromaticity coordinates, the green emitting phosphor chromaticity coordinates, the blue chip chromaticity coordinates and institute
Default chromaticity coordinates is stated, yellow fluorescent powder chromaticity coordinates is calculated；
It is S23, the yellow fluorescent powder chromaticity coordinates, the default chromaticity coordinates, the red fluorescence powder chromaticity coordinates, the green is glimmering
Light pink colour coordinate, the blue chip chromaticity coordinates are inputted the LED and match recommended models, obtained using least square method described pre-
Establishing ratio.
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, the red fluorescence powder and the green emitting phosphor volume ratio are obtained with weight/power ratio according to described；
It is S33, the yellow fluorescent powder chromaticity coordinates, the default chromaticity coordinates, the red fluorescence powder chromaticity coordinates, the green is glimmering
Light pink colour coordinate, the blue chip chromaticity coordinates and the volume ratio input the LED dispensing amount model, utilize least square method
Obtain the default dispensing amount.
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