CN109802028B - Least square method-based L ED fluorescent powder glue ratio and glue quantity recommendation method - Google Patents

Least square method-based L ED fluorescent powder glue ratio and glue quantity recommendation method Download PDF

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CN109802028B
CN109802028B CN201811386600.0A CN201811386600A CN109802028B CN 109802028 B CN109802028 B CN 109802028B CN 201811386600 A CN201811386600 A CN 201811386600A CN 109802028 B CN109802028 B CN 109802028B
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phosphor
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任锦
顾铠
肖超
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Zhejiang Yunke Zhizao Technology Co ltd
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Abstract

The invention relates to a least square method-based L ED (at least square) -phosphor-glue ratio and glue-dispensing amount recommendation method which comprises the steps of S1, establishing a L ED phosphor-glue ratio and glue-dispensing amount recommendation model according to original data, S2, obtaining a preset ratio by using preset data, the L ED phosphor-glue ratio and glue-dispensing amount recommendation model, and S3, obtaining a preset glue-dispensing amount according to the preset ratio, the L ED phosphor-glue ratio and glue-dispensing amount recommendation model.

Description

Least square method-based L ED fluorescent powder glue ratio and glue quantity recommendation method
Technical Field
The invention belongs to the field of L ED manufacturing, and particularly relates to a least square method-based L ED fluorescent powder glue proportioning and glue quantity recommendation method.
Background
L ED is the fastest light source product developing in recent years, and will certainly replace most traditional illumination in the near future, and becomes the mainstream product of the illumination market, wherein white light L ED has the advantages of energy saving, environmental protection, small volume, long light emitting time and the like, is widely applied to multiple fields of automobile illumination, indoor illumination and the like, and is the most promising next-generation solid light emitting source.
At present, the packaging mode of white light L ED mainly depends on blue light technology and fluorescent powder to form white light, yellow fluorescent powder with a certain wave band is mixed with epoxy or silica gel and then encapsulated around a blue light L ED chip, and because the yellow fluorescent powder has higher cost and the single yellow fluorescent powder has lower color rendering index, the single yellow fluorescent powder is rarely used for manufacturing white light L ED, but the red fluorescent powder and the green fluorescent powder are mixed to form yellow with equal wavelength.
However, because the two phosphors have different influences on L ED color rendering index and color temperature, reasonable phosphor powder proportion and proportion of the phosphor powder and glue (rubber powder proportion for short) are critical to the white light L ED luminous performance, and the dispensing amount of each cup of glue also influences the white light luminous efficiency.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a least square method-based L ED fluorescent powder glue proportioning and glue quantity recommending method, which is realized by the following technical scheme:
the embodiment of the invention provides a least square method-based L ED fluorescent powder glue proportioning and glue quantity recommendation method, which comprises the following steps:
s1, establishing a L ED fluorescent powder glue proportioning and glue dispensing amount recommendation model according to original data, wherein the original data comprise original red fluorescent powder color coordinates, original green fluorescent powder color coordinates, original blue chip color coordinates, original proportioning data, original target color coordinates, original glue dispensing amount data and original auxiliary material data;
s2, obtaining a preset ratio by using preset data and the L ED fluorescent powder glue ratio and glue quantity recommendation model, wherein the preset data comprise a red fluorescent powder color coordinate, a green fluorescent powder color coordinate, a blue chip color coordinate and a preset target color coordinate;
s3, obtaining a preset dispensing amount according to the preset ratio and the L ED fluorescent powder glue ratio and dispensing amount recommendation model;
the L ED fluorescent powder glue ratio and glue dispensing amount recommendation model comprises a L ED fluorescent powder glue ratio recommendation model and a L ED glue dispensing amount recommendation model;
s2 includes:
s21, acquiring the red phosphor color coordinate, the green phosphor color coordinate and the blue chip color coordinate through excitation wavelength;
s22, calculating a yellow fluorescent powder color coordinate through the red fluorescent powder color coordinate, the green fluorescent powder color coordinate, the blue chip color coordinate and the preset target color coordinate;
s23, inputting the color coordinates of the yellow fluorescent powder, the preset target color coordinates, the color coordinates of the red fluorescent powder and the color coordinates of the green fluorescent powder into the L ED fluorescent powder glue ratio recommendation model, and obtaining the preset ratio by using a least square method.
In one embodiment of the present invention, S1 includes:
s11, acquiring the original red phosphor color coordinate, the original green phosphor color coordinate, the original blue chip color coordinate, the original target color coordinate, the original proportioning data and the original glue dispensing amount data, and establishing a L ED phosphor glue proportioning recommendation model;
s12, establishing a L ED dispensing amount recommendation model according to the original auxiliary material data and the L ED fluorescent powder glue ratio recommendation model.
In one embodiment of the present invention, S11 includes:
s111, acquiring the original red fluorescent powder color coordinate, the original green fluorescent powder color coordinate, the original blue chip color coordinate and the original target color coordinate through historical data;
s112, calculating an original yellow fluorescent powder color coordinate through the original red fluorescent powder color coordinate, the original green fluorescent powder color coordinate, the original blue chip color coordinate and the original target color coordinate;
s113, calculating L ED particle original red phosphor powder volume and original green phosphor powder volume according to the original proportioning data and the original dispensing amount data, wherein the original dispensing amount data comprises original colloid thickness;
s114, establishing the L ED fluorescent powder glue ratio recommendation model by using the volume of the original red fluorescent powder, the volume of the original green fluorescent powder and the color coordinate of the original yellow fluorescent powder.
In an embodiment of the present invention, the calculation formula of the L ED phosphor glue ratio recommendation model is as follows:
Figure GDA0002529717000000041
wherein the content of the first and second substances,
(xr,yr) As the original red phosphor color coordinate, (x)g,yg) As the original green phosphor color coordinate, (x)b,yb) As the original blue chip color coordinates, (x)t,yt) L R is the conversion rate of unit volume of original red phosphor, VR is the volume of the original red phosphor in a L ED particle, VG is the volume of the original green phosphor in a L ED particle, h is the original colloid thickness,
Figure GDA0002529717000000042
and recommending a model coefficient for the L ED fluorescent powder glue ratio.
In one embodiment of the present invention, S12 includes:
s121, acquiring the original auxiliary material data through historical data;
s122, establishing the L ED dispensing amount recommendation model according to the L ED fluorescent powder glue ratio recommendation model and the original auxiliary material data.
In an embodiment of the present invention, the calculation formula of the L ED dispensing amount recommendation model is as follows:
Figure GDA0002529717000000043
wherein the content of the first and second substances,
(xr,yr) As the original red phosphor color coordinate, (x)g,yg) As the original green phosphor color coordinate, (x)b,yb) As the original blue chip color coordinates, (x)t,yt) L R is the conversion rate per unit volume of the original red phosphor, VR is the volume of the original red phosphor in a L ED particle, VG is the volume of the original green phosphor in a L ED particle, h is the thickness of the original colloid, f (h) is a function of h and VR, VG,
Figure GDA0002529717000000051
recommending model coefficients for the L ED fluorescent powder glue ratio, wherein R is Rr+rg+rAj+rBj+rk，rrAnd rgIs the volume ratio of the original red phosphor to the original green phosphor in an L ED particle, rAjIs the volume ratio of A glue, rBjIs the volume ratio of the B glue, rkThe volume ratio of the anti-starch deposition is shown.
In one embodiment of the present invention, S3 includes:
s31, obtaining the proportioning weight according to the preset proportioning;
s32, obtaining the volume ratio of the red fluorescent powder to the green fluorescent powder according to the proportioning weight;
and S33, inputting the yellow phosphor color coordinate, the preset target color coordinate, the red phosphor color coordinate, the green phosphor color coordinate, the blue chip color coordinate and the volume ratio into the L ED dispensing amount recommendation model, and obtaining the preset dispensing amount by using a least square method.
Compared with the prior art, the invention has the beneficial effects that:
according to the L ED fluorescent powder glue ratio and glue dispensing amount recommendation method based on the least square method, a L ED fluorescent powder glue ratio recommendation model and a L ED glue dispensing amount recommendation model are established through historical data based on the least square method, and when relevant material information and product information are input by a user, the recommendation ratio and the recommendation glue dispensing amount can be obtained through the model established in the embodiment of the invention, so that an engineer is helped to shorten the sample and trial production period, the production cost is reduced, and the production efficiency and the yield are improved.
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FIG. 1 is a schematic structural diagram of a least square method-based L ED phosphor glue proportioning and glue dispensing amount recommendation method provided by an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an L ED phosphor glue proportioning and glue dispensing amount recommendation device based on a least square method according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to specific examples, but the embodiments of the present invention are not limited thereto.
Example one
Referring to fig. 1 and 2, fig. 1 is a schematic structural diagram of a least square method-based L ED phosphor glue proportioning and glue dispensing amount recommendation method, fig. 2 is a schematic structural diagram of a least square method-based L ED phosphor glue proportioning and glue dispensing amount recommendation device, an embodiment of the invention provides a white light L ED encapsulation method mainly depends on a blue light technology and phosphor matching to form white light, yellow phosphor with a certain waveband is mixed with epoxy or silica gel and then encapsulated around a blue light L ED chip, and the yellow phosphor is prepared from red phosphor and green phosphor.
As shown in fig. 1, a least square method-based L ED phosphor glue proportioning and glue dispensing amount recommendation method includes:
s1, establishing a L ED fluorescent powder glue proportioning and glue dispensing amount recommendation model according to original data, wherein the original data comprise original red fluorescent powder color coordinates, original green fluorescent powder color coordinates, original blue chip color coordinates, original proportioning data, original target color coordinates, original glue dispensing amount data and original auxiliary material data;
s2, obtaining a preset ratio by using preset data and the L ED fluorescent powder glue ratio and glue quantity recommendation model, wherein the preset data comprise a red fluorescent powder color coordinate, a green fluorescent powder color coordinate, a blue chip color coordinate and a preset target color coordinate;
and S3, obtaining a preset dispensing amount according to the preset ratio and the L ED fluorescent powder glue ratio and dispensing amount recommendation model.
Further, the L ED phosphor glue ratio and glue dispensing amount recommendation model comprises a L ED phosphor glue ratio recommendation model and a L ED glue dispensing amount recommendation model.
S1 further comprises S11, obtaining the original red phosphor color coordinate, the original green phosphor color coordinate, the original blue chip color coordinate, the original target color coordinate, the original proportioning data and the original dispensing amount data, and establishing a L ED phosphor glue proportioning recommendation model;
s12, establishing a L ED dispensing amount recommendation model according to the original auxiliary material data and the L ED fluorescent powder glue ratio recommendation model.
Further, S11 includes: s111, acquiring the original red fluorescent powder color coordinate, the original green fluorescent powder color coordinate, the original blue chip color coordinate and the original target color coordinate through historical data;
specifically, a group of produced product data with high production yield, good color rendering index and color temperature performance is obtained from historical data by utilizing a big data technology, wherein the product data specifically comprises a product color rendering index, a product series, a blue chip model, various fluorescent powder models, the types and the numbers of various fluorescent powders, a bracket model, AB glue, anti-deposition starch and the like.
Specifically, first, according to the model of each phosphor in the product data, the model of the blue chip, and the like, the corresponding color development wavelengths, that is, the color development wavelength of the red phosphor, the color development wavelength of the green phosphor, the color development wavelength of the blue chip, the color development wavelength of the produced product, and the like are queried. Then, the corresponding color coordinate table is inquired according to the color development wavelength, and the original red phosphor color coordinate, the original green phosphor color coordinate, the original blue chip color coordinate and the original target color coordinate can be obtained. And secondly, the proportion data of the red fluorescent powder and the green fluorescent powder, and the auxiliary material data such as AB glue content, anti-starch content and the like can be obtained from the product data.
S112, calculating an original yellow fluorescent powder color coordinate through the original red fluorescent powder color coordinate, the original green fluorescent powder color coordinate, the original blue chip color coordinate and the original target color coordinate;
specifically, for white light matching, a yellow phosphor is generally prepared by mixing a red phosphor and a green phosphor, and the original yellow phosphor color coordinate of the yellow phosphor obtained by mixing the red phosphor and the green phosphor is defined as (x)4,y4) Then the point is the original red phosphor chromaticity coordinate (x)r,yr) And primary green phosphorColor coordinate (x)g,yg) Straight line and original blue chip color coordinate (x)b,yb) And original target color coordinates (x)t,yt) The intersection point of the straight lines. According to CIE theory of arbitrary color coordinates, (x)4,y4) The relationship to the phosphor coordinates is as follows:
Figure GDA0002529717000000081
wherein: PR and PG respectively indicate the luminous fluxes of the red phosphor and the green phosphor after passing through the glue layer, wherein the luminous flux is the derived amount of the radiant flux evaluated according to the standard human visual characteristics specified in the international standard.
S113, calculating L ED particle original red phosphor powder volume and original green phosphor powder volume according to the original proportioning data and the original dispensing amount data, wherein the dispensing amount data comprises original colloid thickness;
specifically, from the luminous flux core model, one can obtain:
Figure GDA0002529717000000082
wherein: betaR, betaG respectively represent the conversion of red phosphor and green phosphor, which is equal to the conversion efficiency per unit volume (total volume) per volume of phosphor, and may also be expressed as (conversion efficiency per unit volume) per volume fraction; PB, PR and PG represent luminous flux of red fluorescent powder, green fluorescent powder and blue chip after penetrating out of the glue layer respectively, and PB0Representing the unit luminous flux of a blue chip, alphaB representing the energy loss of blue light during propagation, and h representing the original gel thickness of an L ED chip.
Specifically, the content in S113 is obtained by dividing PB and PG by PR at the same time, and the following formula is obtained:
Figure GDA0002529717000000091
to ealphaB*hTo perform TaylorExpansion of the series, then under a first approximation
Figure GDA0002529717000000092
And betaR, betaG are linearly related to the phosphor volume, equation (3) can be written as:
Figure GDA0002529717000000093
l R and L G respectively show the conversion rate of the unit volume of the red phosphor and the green phosphor in physics, VG and VR respectively show the volume of the red phosphor and the green phosphor in a L ED particle, namely the volume of the original red phosphor and the volume of the original green phosphor;
the numerator and denominator of equation (1) are simultaneously divided by PR, and equation (4) is taken into equation (1), which yields the following equation:
Figure GDA0002529717000000094
order to
Figure GDA0002529717000000095
Formula (5) can be represented as:
Figure GDA0002529717000000096
according to the formula (6), the least square method and the color coordinate (x) of the phosphor are usedr,yr) And (x)g,yg)、(x4,y4) L1 g was determined for the volumes VR and VG of the L ED particles in each cup of gel.
S114, establishing the L ED fluorescent powder glue ratio recommendation model by using the volume of the original red fluorescent powder, the volume of the original green fluorescent powder and the color coordinate of the original yellow fluorescent powder.
Specifically, define (x)t,yt) For original target color coordinates, according to CIE theory of arbitrary color coordinates, target color coordinates (x)t,yt) The relationship between the color coordinates of the phosphor and the color coordinates of the blue chip can be expressed as：
Figure GDA0002529717000000101
The numerator and denominator of formula (7) are divided by PR, and formula (4) and
Figure GDA0002529717000000102
a calculation formula of an L ED fluorescent powder glue ratio recommendation model is obtained by substituting formula (7), and the formula is as follows:
Figure GDA0002529717000000103
wherein (x)r,yr) As the original red phosphor color coordinate, (x)g,yg) As the original green phosphor color coordinate, (x)b,yb) As the original blue chip color coordinates, (x)t,yt) L R is the conversion rate of unit volume of original red phosphor, VR is the volume of the original red phosphor in a L ED particle, VG is the volume of the original green phosphor in a L ED particle, h is the original colloid thickness,
Figure GDA0002529717000000104
recommending model coefficients for the L ED phosphor gel ratio according to equation (8) and the calculated L1, and (x)r,yr)、(xg,yg)、(xt,yt)、(xb,yb) The volumes VR and VG of the fluorescent powder in each cup of glue and the thickness h of the original glue body are solved by L R through a least square method.
According to
Figure GDA0002529717000000105
L G is solved, and based on the historical data, coefficients L1, L R and L G of the L ED fluorescent powder glue ratio recommendation model can be completely solved according to the model solving process.
Specifically, the original auxiliary material data includes auxiliary material data such as glue A, glue B, anti-settling starch and the like. The definition is in the process of glue dispensing,the weight of the red phosphor, the green phosphor, the glue A, the glue B and the anti-deposition starch are respectively expressed as follows: m isr,mg,mAj,mBj,mkThe density of which can be expressed as pr,pg,pAj,pBj,pkVR, VG and corresponding density obtained by solving according to L ED fluorescent powder glue ratio recommendation model, and the weights m of red fluorescent powder and green fluorescent powder can be calculated by using the formulas (9) and (10)r,mgThe formula is as follows:
mr＝pr*VR (9)
mg＝pg*VG (10)
according to the specified conditions in dispensing, the proportion of the glue A and the glue B is fixed to be 0.4:1.6, the proportion of the glue A and the anti-deposition starch is 0.4:0.03, and the formula is shown as the following formulas (11) and (12):
mAj:mBj＝0.4:1.6 (11)
mAj:mk＝0.4:0.03 (12)
setting the volumes of glue A, glue B and anti-setting starch as VAj, VBj and VK, and the glue dispensing amount as V, preferably, the glue dispensing amount V is the historical average glue dispensing amount, and the formula is as follows:
VAj+VBj+VK+VR+VG＝V(13)
Figure GDA0002529717000000111
Figure GDA0002529717000000112
and (5) solving VR, VG, the dispensing quantity V and the density of each material according to the formula (15) to obtain the mass of the glue A. Converting the mass ratio into mAjThe obtained red fluorescent powder has the mass ratio of 0.4: green phosphor powder: glue A: b, glue B:
Figure GDA0002529717000000113
and after the mass ratio is obtained, establishing an L ED fluorescent powder glue ratio recommendation model according to the calculation result.
Further, S12 includes: s121, acquiring the original auxiliary material data through historical data;
s122, establishing the L ED dispensing amount recommendation model according to the L ED fluorescent powder glue ratio recommendation model and the original auxiliary material data.
Specifically, the phosphor proportion and the dispensing amount V of the model are recommended according to the L ED phosphor-paste proportion, and the dispensing amount V is expressed as a function of the paste amount thickness h, namely, V ═ f (h).
Defining the weight ratio of red phosphor, green phosphor, A glue, B glue and anti-deposition starch as follows: m isr:mg:mAj:mBj:mk＝a:b:c:d:e，
Defining the density ratio of red phosphor, green phosphor, glue A, glue B and anti-deposition starch as:
pr,pg,pAj,pBj,pk，
then p isr*rr:pg*rg:pAj*rAj:pBj*rBj:pk*rk＝a:b:c:d:e (16)
Let R be Rr+rg+rAj+rBj+rk
From the weight data and density data, the volume ratio r of the individual materials in an L ED granule can be obtained by means of equation (16)r:rg:rAj:rBj:rkThe following formula for the volume of each phosphor in an L ED particle can be obtained:
Figure GDA0002529717000000121
Figure GDA0002529717000000122
the red and green phosphor volumes can be expressed as a function of h according to equations (17) and (18), i.e.
Figure GDA0002529717000000123
Figure GDA0002529717000000124
Substituting functions of VR, VG and V into h into formula (8), L ED dispensing amount recommendation models can be obtained, and the calculation formula is as follows:
Figure GDA0002529717000000131
wherein (x)r,yr) As the original red phosphor color coordinate, (x)g,yg) As the original green phosphor color coordinate, (x)b,yb) As the original blue chip color coordinates, (x)t,yt) L R is the conversion rate per unit volume of the original red phosphor, VR is the volume of the original red phosphor in a L ED particle, VG is the volume of the original green phosphor in a L ED particle, f (h) is a function of h, VR, VG,
Figure GDA0002529717000000132
and recommending a model coefficient for the L ED fluorescent powder glue ratio.
By the formula (21), based on the least square method, by (x)r,yr)、(xg,yg)、(xb,yb)、(xt,yt)、L1、LR、rr、rgH is calculated. And h can be converted into the glue dispensing amount according to the support parameters.
Further, S2 includes: s21, acquiring the red phosphor color coordinate, the green phosphor color coordinate and the blue chip color coordinate through excitation wavelength;
specifically, according to a product to be produced, the wavelengths of each fluorescent powder and each blue chip in the raw material are obtained through the excitation wavelength, the color coordinate table corresponding to the light wavelength is inquired, and the color coordinates corresponding to the wavelengths of the blue chip and each fluorescent powder are inquired and obtained.
S22, calculating a yellow fluorescent powder color coordinate through the red fluorescent powder color coordinate, the green fluorescent powder color coordinate, the blue chip color coordinate and the preset target color coordinate;
in particular, for the product to be produced, i.e. the target color coordinate (x)t,yt) Known, yellow phosphor coordinates (x)4,y4) The intersection point of the straight line of the color coordinates of the red and green fluorescent powder and the straight line of the color coordinates of the blue chip and the target color coordinates is shown.
S23, inputting the color coordinates of the yellow fluorescent powder, the preset target color coordinates, the color coordinates of the red fluorescent powder and the color coordinates of the green fluorescent powder into the L ED fluorescent powder glue ratio recommendation model, and obtaining the preset ratio by using a least square method.
Specifically, the volume ratio r of red phosphor to green phosphor in an L ED particle can be solved according to the formula (16) and the actual mixture ratio weight and corresponding density of each materialr、rg。
Specifically, V1 is solved by equation (7) using a least squares method and VR is solved by equation (9) according to the model established. Solving VG according to the definition V1 of V1 as VG/VR and the calculation result; from the raw material information (RGB wavelength, density of each material of the glue), m was obtained from the results of VR and VG by the following equations (9) to (15)r,mg,mAj,mBj,mkThe mass (this is the mass of various materials in the unit weight of glue, that is, the mass ratio) of (b) can obtain the preset ratio according to the mass, and finally convert the preset ratio into the customer common ratio form.
Further, S3 includes: s31, obtaining the proportioning weight according to the preset proportioning;
specifically, materials are weighed according to the fluorescent powder ratio recommended by the L ED fluorescent powder glue ratio recommendation model, the glue dispensing amount of each cup of glue is solved based on the actual ratio weight of each cup of glue, and the glue dispensing amount is recommended.
Given the stent lumen size, the amount of glue dispensed V is expressed as a function of the glue amount thickness h, i.e., V ═ f (h).
S32, obtaining the volume ratio of the red fluorescent powder to the green fluorescent powder according to the proportioning weight;
specifically, the volume ratio r of red phosphor to green phosphor in an L ED particle can be calculated according to the formula (16), the actual proportioning weights and the corresponding densities of the phosphors and the auxiliary materialsr、rg(ii) a The volume of each phosphor is then converted to a function of h according to equations (19), (20).
And S33, inputting the yellow phosphor color coordinate, the preset target color coordinate, the red phosphor color coordinate, the green phosphor color coordinate, the blue chip color coordinate and the volume ratio into the L ED dispensing amount recommendation model, and obtaining the preset dispensing amount by using a least square method.
Specifically, the phosphor color coordinates, the blue chip color coordinates, L1, L R, rr、rgAnd (21) carrying in, calculating by using a least square method to obtain the thickness h of the colloid, and finally calculating according to the size of the cavity of the dispensing support and the h to obtain the preset dispensing amount.
As shown in fig. 2, an embodiment of the present invention further provides a least square method-based L ED phosphor paste proportioning and dispensing amount recommendation device, which includes an input end, a L ED phosphor paste proportioning recommendation module, a L ED dispensing amount recommendation module, and an output end,
the input end is used for inputting material data required by production of a blue chip model of a product to be produced, various fluorescent powder models, a dispensing bracket model, an AB glue model, an anti-starch precipitation model and the like;
the L ED fluorescent powder glue ratio recommending module is used for obtaining a preset ratio through material data calculation according to the L ED fluorescent powder glue ratio recommending model and outputting the preset ratio to an output end;
the L ED dispensing amount recommending module is used for calculating to obtain a preset dispensing amount through material data and a preset proportion according to the L ED dispensing amount recommending model, and outputting the preset dispensing amount to an output end;
the output end is used for outputting and displaying the preset proportioning and the preset dispensing amount.
According to the L ED fluorescent powder glue ratio and glue dispensing amount recommendation method based on the least square method, a L ED fluorescent powder glue ratio recommendation model and a L ED glue dispensing amount recommendation model are established through historical data and an algorithm, when a user inputs related material information and product information, the recommendation ratio and the recommendation glue dispensing amount can be obtained through the model established in the embodiment of the invention, an engineer is helped to shorten the sample and trial production period, the production cost is reduced, and the production efficiency and the yield are improved.
The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.

Claims (1)

1. The utility model provides a L ED phosphor powder glue ratio and some adhesive quantity recommendation method based on least square method which characterized in that includes:
s1, establishing a L ED fluorescent powder glue proportioning and glue dispensing amount recommendation model according to original data, wherein the original data comprise original red fluorescent powder color coordinates, original green fluorescent powder color coordinates, original blue chip color coordinates, original proportioning data, original target color coordinates, original glue dispensing amount data and original auxiliary material data;
s2, obtaining a preset ratio by using preset data and the L ED fluorescent powder glue ratio and glue quantity recommendation model, wherein the preset data comprise a red fluorescent powder color coordinate, a green fluorescent powder color coordinate, a blue chip color coordinate and a preset target color coordinate;
s3, obtaining a preset dispensing amount according to the preset ratio and the L ED fluorescent powder glue ratio and dispensing amount recommendation model;
the L ED fluorescent powder glue ratio and glue dispensing amount recommendation model comprises a L ED fluorescent powder glue ratio recommendation model and a L ED glue dispensing amount recommendation model;
s1 comprises S11, obtaining the original red phosphor color coordinate, the original green phosphor color coordinate, the original blue chip color coordinate, the original target color coordinate, the original proportioning data and the original dispensing amount data, and establishing a L ED phosphor glue proportioning recommendation model, S12, establishing a L ED dispensing amount recommendation model according to the original auxiliary material data and the L ED phosphor glue proportioning recommendation model;
s11 comprises S111, obtaining the original red phosphor color coordinate, the original green phosphor color coordinate, the original blue chip color coordinate and the original target color coordinate through historical data, S112, calculating the original yellow phosphor color coordinate through the original red phosphor color coordinate, the original green phosphor color coordinate, the original blue chip color coordinate and the original target color coordinate, S113, calculating L ED particle original red phosphor powder volume and original green phosphor powder volume through the original proportioning data and the original dispensing quantity data, wherein the original dispensing quantity data comprises original colloid thickness, and S114, establishing the L ED phosphor powder glue proportioning recommendation model by utilizing the original red phosphor powder volume, the original green phosphor powder volume and the original yellow phosphor color coordinate;
the calculation formula of the L ED fluorescent powder glue ratio recommendation model is as follows:
Figure FDA0002529716990000021
wherein the content of the first and second substances,
(xr,yr) As the original red phosphor color coordinate, (x)g,yg) As the original green phosphor color coordinate, (x)b,yb) As the original blue chip color coordinates, (x)t,yt) L R is the conversion rate of unit volume of original red phosphor, VR is the volume of the original red phosphor in a L ED particle, VG is the volume of the original green phosphor in a L ED particle, h is the original colloid thickness,
Figure FDA0002529716990000023
recommending a model coefficient for the L ED fluorescent powder glue ratio;
s12 comprises S121, acquiring the original auxiliary material data through historical data, S122, establishing the L ED dispensing amount recommendation model according to the L ED fluorescent powder glue ratio recommendation model and the original auxiliary material data;
the calculation formula of the L ED dispensing quantity recommendation model is as follows:
Figure FDA0002529716990000022
wherein the content of the first and second substances,
(xr,yr) (x) is the original red phosphor color coordinateg,yg) Is the original green phosphor color coordinate, (x)b,yb) (x) is the original blue chip color coordinatet,yt) L R is the conversion rate of unit volume of the original red phosphor, VR is the volume of the original red phosphor in a L ED particle, VG is the volume of the original green phosphor in a L ED particle, h is the original colloid thickness, f (h) is a function of h, VR, VG,
Figure FDA0002529716990000031
recommending model coefficients for the L ED fluorescent powder glue ratio, wherein R is Rr+rg+rAj+rBj+rk，rrAnd rgIs the volume ratio of the original red phosphor to the original green phosphor in an L ED particle, rAjIs the volume ratio of A glue, rBjIs the volume ratio of the B glue, rkThe volume ratio of the anti-deposition starch is;
s2 includes S21, obtaining the red phosphor color coordinate, the green phosphor color coordinate and the blue chip color coordinate through excitation wavelength, S22, calculating a yellow phosphor color coordinate through the red phosphor color coordinate, the green phosphor color coordinate, the blue chip color coordinate and the preset target color coordinate, S23, inputting the yellow phosphor color coordinate, the preset target color coordinate, the red phosphor color coordinate and the green phosphor color coordinate into the L ED phosphor glue proportioning recommendation model, and obtaining the preset proportioning by a least square method;
s3 includes S31, obtaining proportioning weight according to the preset proportioning, S32, obtaining volume ratio of the red fluorescent powder to the green fluorescent powder according to the proportioning weight, and S33, inputting the color coordinates of the yellow fluorescent powder, the preset target color coordinates, the color coordinates of the red fluorescent powder, the color coordinates of the green fluorescent powder, the color coordinates of the blue chip and the volume ratio into the L ED dispensing amount recommendation model, and obtaining the preset dispensing amount by using a least square method.
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