CN101984016B - Manufacturing method of red fluorescent powder used for cold cathode fluorescent lamp (CCFL) - Google Patents
Manufacturing method of red fluorescent powder used for cold cathode fluorescent lamp (CCFL) Download PDFInfo
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- CN101984016B CN101984016B CN 201010523676 CN201010523676A CN101984016B CN 101984016 B CN101984016 B CN 101984016B CN 201010523676 CN201010523676 CN 201010523676 CN 201010523676 A CN201010523676 A CN 201010523676A CN 101984016 B CN101984016 B CN 101984016B
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Abstract
The invention provides a manufacturing method of red fluorescent powder used for cold cathode fluorescent lamp (CCFL), which comprises the following steps: dissolving aluminum nitrate solid into water to obtain solution and preparing ammonia solution; adding a phosphor sintering product to a dispersion machine for dispersion to obtain first powder paste; carrying out water sieving on the first powder paste, washing with deionized water, settling and pouring away clear liquid to obtain second powder paste; transferring the second powder paste to surface treatment equipment to obtain third powder paste; diluting the obtained aluminum nitrate solution, adding the diluted solution to the third powder paste, and stirring to obtain a first mixture; taking the ammonia solution, diluting and adding to the first mixture, and stirring to obtain a second mixture; washing the second mixture with deionized water to obtain a third mixture; and removing moisture in the third mixture, drying, cooling the obtained product to room temperature and sieving to obtain the finished product of the red fluorescent powder. The obtained red phosphor has the advantages of small cohesion of powder particles, excellent coating properties and smooth membrane surface.
Description
Technical field
The present invention relates to a kind of manufacture method of red fluorescence powder, particularly a kind of CCFL manufacture method of red fluorescence powder.
Background technology
Along with the particularly rapid expansion in liquid crystal display device market of flat pannel display, the development of the high light efficiency slim pipe diameter of its principal light source type cold-cathode fluorescence lamp is also very fast in recent years, and its used red fluorescence powder is with Y
2O
3: Eu is the substrate material red fluorescence powder, Y
2O
3: the Eu red fluorescence powder is white powder, isometric system, it is effectively luminescent material under the 253.7nm burst of ultraviolel, under the 253.7nm burst of ultraviolel, send fluorescent red-orange, peak wavelength is 611nm, without big-difference too, particle aggregation is large, face is rough, the obvious shortcoming of coacervation point but exist in application facet, brings disadvantageous effect for slim pipe diameter type cold-cathode fluorescence lamp light efficiency aspect the characteristics of luminescence for the red fluorescence powder that is applied in the market slim pipe diameter type cold-cathode fluorescence lamp.
Traditional cold cathode fluorescent lamp (CCFL) does not directly use with not carrying out surface treatment in the red fluorescence powder craft, and meeting is large because of particle aggregation in application, face is rough, coacervation point obviously brings negative impact to luminescent lamp; And after red fluorescence powder surface-coated aluminum oxide is to powder particle cohesion and lamp processed, the luminescent lamp face is had more significant improvement effect by physical method, cause applying inhomogeneous but also exist alumina particle itself cohesion, finally can cause red fluorescence powder surface-coated thing that the problems such as cohesion are arranged.
Summary of the invention
In order to overcome the shortcoming of above-mentioned prior art, the object of the present invention is to provide a kind of CCFL manufacture method of red fluorescence powder, made red fluorescence powder has the advantage that the powder granule cohesion is little, coating property is excellent, face is smooth.
In order to achieve the above object, manufacturing technology steps of the present invention is as follows:
A kind of CCFL manufacture method of red fluorescence powder may further comprise the steps:
(1) be 10% solution with the water-soluble mass percent concentration that is configured to of aluminum nitrate solid, and the configuration quality percentage concentration is 20% ammonia soln;
(2) fluor is burnt till the product dispersion machine of packing into and disperse, control condition makes its granularity between 5.0-5.5 μ m, disperses namely to get the first powder slurry after complete;
(3) the first powder was starched 500 order water sieves, and washed 3-5 time with deionized water, deionized water and the first powder slurry mass ratio are 5: 1, outwell clear liquid after the sedimentation and obtain the second powder slurry; The second powder slurry is changed in the surface processing equipment, burn till product by fluor: deionized water is 1 again: the weight ratio of (2～5) adds deionized water, stirs 20min, obtains the 3rd powder slurry;
(4) burn till product by 1kg fluorescent material and need add 0.1g～1.0g aluminum oxide to calculate desired concn be 10% aluminum nitrate solution weight, and weighing, dilution joins in the 3rd powder oar its concentration after 0.5%, and stirs 5～10min, obtains the first mixture;
(5) getting mass percent concentration is that 20% ammonia soln and dilution join in the first mixture its concentration after 2%, and monitoring pH value, treat that pH value reaches at 8.5～9.0 o'clock and stops to add ammonia soln, and stir 10～20min, obtain the second mixture;
(6) the second mixture is washed 1～2 time with deionized water, deionized water and fluorescent material mass ratio are 5: 1, obtain the 3rd mixture;
(7) remove contained moisture in the 3rd mixture, and under take drying temperature as 145～160 ℃ condition dry 8～12 hours, temperature is crossed 160 mesh sieves after being down to room temperature, obtains finished products-red fluorescent material.
Because it is little that the made red-emitting phosphors powder granule of the present invention condenses, so have the advantage that coating property is excellent, face is smooth.Adopting the made powder of the present invention and general surface to process sample compares: the poor little 0.1-0.2 μ m of wanting of the granularity of ultrasonic front and back not only, the more important thing is the improvement that powder is coated with membranous behind the screen, compactness, cohesion, and improve more than 5% so that in application, be coated with the pipe rate.
Embodiment
Below in conjunction with specific embodiment the present invention is described in detail.
Embodiment 1
A kind of CCFL manufacture method of red fluorescence powder may further comprise the steps:
(1) be 10% solution with the water-soluble mass percent concentration that is configured to of aluminum nitrate solid, and the configuration quality percentage concentration is 20% ammonia soln;
(2) fluor is burnt till the product dispersion machine of packing into and disperse, control condition makes its granularity reach 5.0 μ m, disperses namely to get the first powder slurry after complete;
(3) the first powder was starched 500 order water sieves, and fully washed 3 times with deionized water, deionized water and the first powder slurry mass ratio are 5: 1, outwell clear liquid after the sedimentation and obtain the second powder slurry; The second powder slurry is changed in the surface processing equipment again, burn till product by fluor: deionized water is that 1: 2 weight ratio adds deionized water, stirs 20min, obtains the 3rd powder slurry;
(4) burning till product by 1kg fluorescent material need add the 0.1g aluminum oxide to calculate required mass percent concentration be 10% aluminum nitrate solution weight, and weighing, dilution joins in the 3rd powder oar its concentration after 0.5%, and stirs 5～10min, obtains the first mixture;
(5) getting mass percent concentration is that 20% ammonia soln and dilution join in the first mixture its concentration after 2%, and the monitoring pH value, treats that pH value reaches at 8.5 o'clock and stops to add ammonia soln, and stirs 10min, obtains the second mixture;
(6) the second mixture is washed 1～2 time with deionized water, deionized water and fluorescent material mass ratio are 5: 1, obtain the 3rd mixture;
(7) remove contained moisture in the 3rd mixture, and under take drying temperature as 145 ℃ condition dry 12 hours, temperature is crossed 160 mesh sieves after being down to room temperature, obtains finished products-red fluorescent material.
Embodiment 2
A kind of CCFL manufacture method of red fluorescence powder may further comprise the steps:
(1) be 10% solution with the water-soluble mass percent concentration that is configured to of aluminum nitrate solid, and the configuration quality percentage concentration is 20% ammonia soln;
(2) fluor is burnt till the product dispersion machine of packing into and disperse, control condition makes its granularity reach 5.2 μ m, disperses namely to get the first powder slurry after complete;
(3) the first powder was starched 500 order water sieves, and fully washed 4 times with deionized water, deionized water and the first powder slurry mass ratio are 5: 1, outwell clear liquid after the sedimentation and obtain the second powder slurry; The second powder slurry is changed in the surface processing equipment again, burn till product by fluor: deionized water is that 1: 3 weight ratio adds deionized water, stirs 20min, obtains the 3rd powder slurry;
(4) burning till product by 1kg fluorescent material need add the 0.2g aluminum oxide to calculate required mass percent concentration be 10% aluminum nitrate solution weight, and weighing, dilution joins in the 3rd powder oar its concentration after 0.5%, and stirs 5～10min, obtains the first mixture;
(5) getting mass percent concentration is that 20% ammonia soln and dilution join in the first mixture its concentration after 2%, and the monitoring pH value, treats that pH value reaches at 8.8 o'clock and stops to add ammonia soln, and stirs 15min, obtains the second mixture;
(6) the second mixture is washed 1 time with deionized water, deionized water and fluorescent material mass ratio are 5: 1, obtain the 3rd mixture;
(7) remove contained moisture in the 3rd mixture, and under take drying temperature as 150 ℃ condition dry 10 hours, temperature is crossed 160 mesh sieves after being down to room temperature, obtains finished products-red fluorescent material.
Embodiment 3
A kind of CCFL manufacture method of red fluorescence powder may further comprise the steps:
(1) be 10% solution with the water-soluble mass percent concentration that is configured to of aluminum nitrate solid, and the configuration quality percentage concentration is 20% ammonia soln;
(2) fluor is burnt till the product dispersion machine of packing into and disperse, control condition makes its granularity reach 5.0 μ m, disperses namely to get the first powder slurry after complete;
(3) the first powder was starched 500 order water sieves, and fully washed 3 times with deionized water, deionized water and the first powder slurry mass ratio are 5: 1, outwell clear liquid after the sedimentation and obtain the second powder slurry; The second powder slurry is changed in the surface processing equipment again, burn till product by fluor: deionized water is that 1: 2 weight ratio adds deionized water, stirs 20min, obtains the 3rd powder slurry;
(4) burning till product by 1kg fluorescent material need add the 0.4g aluminum oxide to calculate required mass percent concentration be 10% aluminum nitrate solution weight, and weighing, dilution joins in the 3rd powder oar its concentration after 0.5%, and stirs 5～10min, obtains the first mixture;
(5) getting mass percent concentration is that 20% ammonia soln and dilution join in the first mixture its concentration after 2%, and the monitoring pH value, treats that pH value reaches at 9.0 o'clock and stops to add ammonia soln, and stirs 12min, obtains the second mixture;
(6) the second mixture is washed 1 time with deionized water, ionized water and fluorescent material mass ratio are 5: 1, obtain the 3rd mixture;
(7) remove contained moisture in the 3rd mixture, and under take drying temperature as 155 ℃ condition dry 9 hours, temperature is crossed 160 mesh sieves after being down to room temperature, obtains finished products-red fluorescent material.
Embodiment 4
A kind of CCFL manufacture method of red fluorescence powder may further comprise the steps:
(1) be 10% solution with the water-soluble mass percent concentration that is configured to of aluminum nitrate solid, and the configuration quality percentage concentration is 20% ammonia soln;
(2) fluor is burnt till the product dispersion machine of packing into and disperse, control condition makes its granularity reach 5.3 μ m, disperses namely to get the first powder slurry after complete;
(3) the first powder was starched 500 order water sieves, and fully washed 3 times with deionized water, deionized water and the first powder slurry mass ratio are 5: 1, outwell clear liquid after the sedimentation and obtain the second powder slurry; The second powder slurry is changed in the surface processing equipment again, burn till product by fluor: deionized water is that 1: 2 weight ratio adds deionized water, stirs 20min, obtains powder the 3rd powder slurry;
(4) burning till product by 1kg fluorescent material need add the 0.8g aluminum oxide to calculate required mass percent concentration be 10% aluminum nitrate solution weight, and weighing, dilution joins in the 3rd powder oar its concentration after 0.5%, and stirs 5～10min, obtains the first mixture;
(5) getting mass percent concentration is that 20% ammonia soln and dilution join in the first mixture its concentration after 2%, and the monitoring pH value, treats that pH value reaches at 9.0 o'clock and stops to add ammonia soln, and stirs 15min, obtains the second mixture;
(6) the second mixture is washed 2 times with deionized water, ionized water and fluorescent material mass ratio are 5: 1, obtain the 3rd mixture;
(7) remove contained moisture in the 3rd mixture, and under take drying temperature as 160 ℃ condition dry 8 hours, temperature is crossed 160 mesh sieves after being down to room temperature, obtains finished products-red fluorescent material.
Embodiment 5
A kind of CCFL manufacture method of red fluorescence powder may further comprise the steps:
(1) the aluminum nitrate solid being configured to mass percent concentration is 10% solution, and the configuration quality percentage concentration is 20% ammonia soln;
(2) fluor is burnt till the product dispersion machine of packing into and disperse, control condition makes its granularity reach 5.4 μ m, disperses namely to get the first powder slurry after complete;
(3) the first powder was starched 500 order water sieves, and fully washed 5 times with deionized water, deionized water and the first powder slurry mass ratio are 5: 1, outwell clear liquid after the sedimentation and obtain the second powder slurry; The second powder slurry is changed in the surface processing equipment again, burn till product by fluor: deionized water is that 1: 2 weight ratio adds deionized water, stirs 20min, obtains the 3rd powder slurry;
(4) burning till product by 1kg fluorescent material need add the 1.0g aluminum oxide to calculate required mass percent concentration be 10% aluminum nitrate solution weight, and weighing, dilution joins in the 3rd powder oar its concentration after 0.5%, and stirs 5～10min, obtains the first mixture;
(5) getting mass percent concentration is that 20% ammonia soln and dilution join in the first mixture its concentration after 2%, and the monitoring pH value, treats that pH value reaches at 9.0 o'clock and stops to add ammonia soln, and stirs 20min, obtains the second mixture;
(6) the second mixture is washed 2 times with deionized water, ionized water and fluorescent material mass ratio are 5: 1, obtain the 3rd mixture;
(7) remove contained moisture in the 3rd mixture, and under take drying temperature as 150 ℃ condition dry 10 hours, temperature is crossed 160 mesh sieves after being down to room temperature, obtains finished products-red fluorescent material.
Subordinate list is the parameter list of each embodiment
Subordinate list
The subordinate list explanation:
1, membranous, cohesion, compactness reflection application characteristic, full marks are 5, score value is more high more excellent.
2, dn-ds (μ m) reflection powder particle Aggregation Characteristics, more the small-particle cohesion is less for difference.
Claims (6)
1. the manufacture method of a used for cold cathode fluorescent lamp red fluorescence powder is characterized in that: may further comprise the steps:
(1) be 10% solution with the water-soluble mass percent concentration that is mixed with of aluminum nitrate solid, and the preparation mass percent concentration is 20% ammonia soln;
(2) fluor is burnt till the product dispersion machine of packing into and disperse, control condition makes its granularity between 5.0-5.5 μ m, disperses namely to get the first powder slurry after complete;
(3) the first powder was starched 500 order water sieves, and washed 3-5 time with deionized water, deionized water and the first powder slurry mass ratio are 5:1, outwell clear liquid after the sedimentation and obtain the second powder slurry; The second powder slurry is changed in the surface processing equipment, burn till product by fluor: deionized water is 1:(2～5 again) weight ratio add deionized water, stir 20min, obtain the 3rd powder slurry;
(4) burn till product by 1kg fluorescent material and need add 0.1g～1.0g aluminum oxide to calculate desired concn be 10% aluminum nitrate solution weight, and weighing, dilution joins in the 3rd powder slurry its concentration after 0.5%, and stirs 5～10min, obtains the first mixture;
(5) getting mass percent concentration is that 20% ammonia soln and dilution join in the first mixture its concentration after 2%, and monitoring pH value, treats that the pH value reaches at 8.5～9.0 o'clock and stops to add ammonia soln, and stirs 10～20min, obtains the second mixture;
(6) the second mixture is washed 1～2 time with deionized water, deionized water and fluorescent material mass ratio are 5:1, obtain the 3rd mixture;
(7) remove contained moisture in the 3rd mixture, and under take drying temperature as 145～160 ℃ condition dry 8～12 hours, temperature is crossed 160 mesh sieves after being down to room temperature, obtains finished products-red fluorescent material.
2. the manufacture method of a kind of used for cold cathode fluorescent lamp red fluorescence powder according to claim 1 is characterized in that: may further comprise the steps:
(1) be 10% solution with the water-soluble mass percent concentration that is mixed with of aluminum nitrate solid, and the preparation mass percent concentration is 20% ammonia soln;
(2) fluor is burnt till the product dispersion machine of packing into and disperse, control condition makes its granularity reach 5.0 μ m, disperses namely to get the first powder slurry after complete;
(3) the first powder was starched 500 order water sieves, and fully washed 3 times with deionized water, deionized water and the first powder slurry mass ratio are 5:1, outwell clear liquid after the sedimentation and obtain the second powder slurry; The second powder slurry is changed in the surface processing equipment again, burn till product by fluor: deionized water is that the weight ratio of 1:2 adds deionized water, stirs 20min, obtains the 3rd powder slurry;
(4) burning till product by 1kg fluorescent material need add the 0.1g aluminum oxide to calculate required mass percent concentration be 10% aluminum nitrate solution weight, and weighing, dilution joins in the 3rd powder slurry its concentration after 0.5%, and stirs 5～10min, obtains the first mixture;
(5) getting mass percent concentration is that 20% ammonia soln and dilution join in the first mixture its concentration after 2%, and monitoring pH value, treats that the pH value reaches at 8.5 o'clock and stops to add ammonia soln, and stirs 10min, obtains the second mixture;
(6) the second mixture is washed 1～2 time with deionized water, deionized water and fluorescent material mass ratio are 5:1, obtain the 3rd mixture;
(7) remove contained moisture in the 3rd mixture, and under take drying temperature as 145 ℃ condition dry 12 hours, temperature is crossed 160 mesh sieves after being down to room temperature, obtains finished products-red fluorescent material.
3. the manufacture method of a kind of used for cold cathode fluorescent lamp red fluorescence powder according to claim 1 is characterized in that: may further comprise the steps:
(1) be 10% solution with the water-soluble mass percent concentration that is mixed with of aluminum nitrate solid, and the preparation mass percent concentration is 20% ammonia soln;
(2) fluor is burnt till the product dispersion machine of packing into and disperse, control condition makes its granularity reach 5.2 μ m, disperses namely to get the first powder slurry after complete;
(3) the first powder was starched 500 order water sieves, and fully washed 4 times with deionized water, deionized water and the first powder slurry mass ratio are 5:1, outwell clear liquid after the sedimentation and obtain the second powder slurry; The second powder slurry is changed in the surface processing equipment again, burn till product by fluor: deionized water is that the weight ratio of 1:3 adds deionized water, stirs 20min, obtains the 3rd powder slurry;
(4) burning till product by 1kg fluorescent material need add the 0.2g aluminum oxide to calculate required mass percent concentration be 10% aluminum nitrate solution weight, and weighing, dilution joins in the 3rd powder slurry its concentration after 0.5%, and stirs 5～10min, obtains the first mixture;
(5) getting mass percent concentration is that 20% ammonia soln and dilution join in the first mixture its concentration after 2%, and monitoring pH value, treats that the pH value reaches at 8.8 o'clock and stops to add ammonia soln, and stirs 15min, obtains the second mixture;
(6) the second mixture is washed 1 time with deionized water, deionized water and fluorescent material mass ratio are 5:1, obtain the 3rd mixture;
(7) remove contained moisture in the 3rd mixture, and under take drying temperature as 150 ℃ condition dry 10 hours, temperature is crossed 160 mesh sieves after being down to room temperature, obtains finished products-red fluorescent material.
4. the manufacture method of a kind of used for cold cathode fluorescent lamp red fluorescence powder according to claim 1 is characterized in that: may further comprise the steps:
(1) be 10% solution with the water-soluble mass percent concentration that is mixed with of aluminum nitrate solid, and the preparation mass percent concentration is 20% ammonia soln;
(2) fluor is burnt till the product dispersion machine of packing into and disperse, control condition makes its granularity reach 5.0 μ m, disperses namely to get the first powder slurry after complete;
(3) the first powder was starched 500 order water sieves, and fully washed 3 times with deionized water, deionized water and the first powder slurry mass ratio are 5:1, outwell clear liquid after the sedimentation and obtain the second powder slurry; The second powder slurry is changed in the surface processing equipment again, burn till product by fluor: deionized water is that the weight ratio of 1:2 adds deionized water, stirs 20min, obtains the 3rd powder slurry;
(4) burning till product by 1kg fluorescent material need add the 0.4g aluminum oxide to calculate required mass percent concentration be 10% aluminum nitrate solution weight, and weighing, dilution joins in the 3rd powder slurry its concentration after 0.5%, and stirs 5～10min, obtains the first mixture;
(5) getting mass percent concentration is that 20% ammonia soln and dilution join in the first mixture its concentration after 2%, and monitoring pH value, treats that the pH value reaches at 9.0 o'clock and stops to add ammonia soln, and stirs 12min, obtains the second mixture;
(6) the second mixture is washed 1 time with deionized water, ionized water and fluorescent material mass ratio are 5:1, obtain the 3rd mixture;
(7) remove contained moisture in the 3rd mixture, and under take drying temperature as 155 ℃ condition dry 9 hours, temperature is crossed 160 mesh sieves after being down to room temperature, obtains finished products-red fluorescent material.
5. the manufacture method of a kind of used for cold cathode fluorescent lamp red fluorescence powder according to claim 1 is characterized in that: may further comprise the steps:
(1) be 10% solution with the water-soluble mass percent concentration that is mixed with of aluminum nitrate solid, and the preparation mass percent concentration is 20% ammonia soln;
(2) fluor is burnt till the product dispersion machine of packing into and disperse, control condition makes its granularity reach 5.3 μ m, disperses namely to get the first powder slurry after complete;
(3) the first powder was starched 500 order water sieves, and fully washed 3 times with deionized water, deionized water and the first powder slurry mass ratio are 5:1, outwell clear liquid after the sedimentation and obtain the second powder slurry; The second powder slurry is changed in the surface processing equipment again, burn till product by fluor: deionized water is that the weight ratio of 1:2 adds deionized water, stirs 20min, obtains the 3rd powder slurry;
(4) burning till product by 1kg fluorescent material need add the 0.8g aluminum oxide to calculate required mass percent concentration be 10% aluminum nitrate solution weight, and weighing, dilution joins in the 3rd powder slurry its concentration after 0.5%, and stirs 5～10min, obtains the first mixture;
(5) getting mass percent concentration is that 20% ammonia soln and dilution join in the first mixture its concentration after 2%, and monitoring pH value, treats that the pH value reaches at 9.0 o'clock and stops to add ammonia soln, and stirs 15min, obtains the second mixture;
(6) the second mixture is washed 2 times with deionized water, ionized water and fluorescent material mass ratio are 5:1, obtain the 3rd mixture;
(7) remove contained moisture in the 3rd mixture, and under take drying temperature as 160 ℃ condition dry 8 hours, temperature is crossed 160 mesh sieves after being down to room temperature, obtains finished products-red fluorescent material.
6. the manufacture method of a kind of used for cold cathode fluorescent lamp red fluorescence powder according to claim 1 is characterized in that: may further comprise the steps:
(1) the aluminum nitrate solid being mixed with mass percent concentration is 10% solution, and the preparation mass percent concentration is 20% ammonia soln;
(2) fluor is burnt till the product dispersion machine of packing into and disperse, control condition makes its granularity reach 5.4 μ m, disperses namely to get the first powder slurry after complete;
(3) the first powder was starched 500 order water sieves, and fully washed 5 times with deionized water, deionized water and the first powder slurry mass ratio are 5:1, outwell clear liquid after the sedimentation and obtain the second powder slurry; The second powder slurry is changed in the surface processing equipment again, burn till product by fluor: deionized water is that the weight ratio of 1:2 adds deionized water, stirs 20min, obtains the 3rd powder slurry;
(4) burning till product by 1kg fluorescent material need add the 1.0g aluminum oxide to calculate required mass percent concentration be 10% aluminum nitrate solution weight, and weighing, dilution joins in the 3rd powder slurry its concentration after 0.5%, and stirs 5～10min, obtains the first mixture;
(5) getting mass percent concentration is that 20% ammonia soln and dilution join in the first mixture its concentration after 2%, and monitoring pH value, treats that the pH value reaches at 9.0 o'clock and stops to add ammonia soln, and stirs 20min, obtains the second mixture;
(6) the second mixture is washed 2 times with deionized water, ionized water and fluorescent material mass ratio are 5:1, obtain the 3rd mixture;
(7) remove contained moisture in the 3rd mixture, and under take drying temperature as 150 ℃ condition dry 10 hours, temperature is crossed 160 mesh sieves after being down to room temperature, obtains finished products-red fluorescent material.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101434837A (en) * | 2008-12-09 | 2009-05-20 | 彩虹集团电子股份有限公司 | Ultraviolet excitated red fluorescent powder surface treating method |
| CN101565618A (en) * | 2009-06-01 | 2009-10-28 | 彩虹集团电子股份有限公司 | Method for preparing red phosphor for CCFL |
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| JPWO2004007636A1 (en) * | 2002-07-16 | 2005-11-10 | 双葉電子工業株式会社 | Composite nanoparticles and method for producing the same |
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| CN101434837A (en) * | 2008-12-09 | 2009-05-20 | 彩虹集团电子股份有限公司 | Ultraviolet excitated red fluorescent powder surface treating method |
| CN101565618A (en) * | 2009-06-01 | 2009-10-28 | 彩虹集团电子股份有限公司 | Method for preparing red phosphor for CCFL |
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