CN103840066B - A kind of method making LED component by regulation phosphor concentration - Google Patents
A kind of method making LED component by regulation phosphor concentration Download PDFInfo
- Publication number
- CN103840066B CN103840066B CN201310742515.4A CN201310742515A CN103840066B CN 103840066 B CN103840066 B CN 103840066B CN 201310742515 A CN201310742515 A CN 201310742515A CN 103840066 B CN103840066 B CN 103840066B
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- Prior art keywords
- led component
- coordinate
- luminous
- phosphor
- fluorescent material
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- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims abstract description 15
- 239000000463 material Substances 0.000 claims abstract description 40
- 238000004020 luminiscence type Methods 0.000 claims abstract description 16
- 230000005284 excitation Effects 0.000 abstract description 6
- 239000000843 powder Substances 0.000 description 15
- 238000010521 absorption reaction Methods 0.000 description 10
- 239000003086 colorant Substances 0.000 description 8
- 238000000295 emission spectrum Methods 0.000 description 4
- 238000000695 excitation spectrum Methods 0.000 description 4
- 230000035515 penetration Effects 0.000 description 4
- 238000000149 argon plasma sintering Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000031700 light absorption Effects 0.000 description 2
- 230000011514 reflex Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 150000004645 aluminates Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
- H01L33/50—Wavelength conversion elements
- H01L33/508—Wavelength conversion elements having a non-uniform spatial arrangement or non-uniform concentration, e.g. patterned wavelength conversion layer, wavelength conversion layer with a concentration gradient of the wavelength conversion material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2933/00—Details relating to devices covered by the group H01L33/00 but not provided for in its subgroups
- H01L2933/0008—Processes
- H01L2933/0033—Processes relating to semiconductor body packages
- H01L2933/0041—Processes relating to semiconductor body packages relating to wavelength conversion elements
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Power Engineering (AREA)
- Led Device Packages (AREA)
Abstract
The invention discloses a kind of method making LED component by regulation phosphor concentration, select to be upwardly deviated from the chip light emitting coordinate figure chromaticity coordinates value place straight line luminous with LED component in CIE and closest to single-component phosphor corresponding to the coordinate figure of this straight line according to the target color coordinates value that chip light emitting coordinate figure and LED component are luminous, increase the concentration of this single-component phosphor, the chromaticity coordinates of LED component luminescence is towards the straight line of long wave direction deviation chip light emitting coordinate figure with fluorescent material coordinate figure place, until the chromaticity coordinates of LED component luminescence reaches the target color coordinates value that LED component is luminous.The method utilizing the present invention, can not only be adjusted to the target color coordinates that LED component is luminous, and excitation is high.
Description
Technical field
The present invention relates to the manufacture method of LED component.
Background technology
The luminous various colors of LED component is various, and current LED component realizes the luminescence of different colours and mainly uses the combined method of the combination of different chip or chip and fluorescent material.Now, blue chip is used to excite the fluorescent material of different colours to obtain the most most commonly seen method of different colours.At present, in the case of die colors coordinate is fixed, the glow color coordinate of a certain particular requirement to be obtained, the general the following two kinds method that uses:
(1) the single powder that can realize this specific glow color coordinate is selected to carry out, but require that the color coordinates of this list powder must pass through glow color coordinate with the line of the color coordinates of chip, although this kind of method can obtain the glow color that excitation is higher, but current fluorescent material limitednumber, find this satisfactory single powder the most difficult, for most glow color requirement, it is difficult to realize.
(2) realized by the combination of different fluorescent material, the colour gamut that the fluorescent material color coordinates of the different colours selected by requirement and die colors coordinate are surrounded comprises glow color coordinate, this method operation easier is big, efficiency is low, and high color coordinates is required for excitation, it is difficult to even not realized by the combination of different colours fluorescent material.
Summary of the invention
Based on above-mentioned technical problem, the invention provides a kind of method making LED component by regulation phosphor concentration.
In order to solve above-mentioned technical problem, the technical scheme is that a kind of method being made LED component by regulation phosphor concentration is: select to be upwardly deviated from the chip light emitting coordinate figure chromaticity coordinates value place straight line luminous with LED component in CIE and closest to single-component phosphor corresponding to the coordinate figure of this straight line according to the target color coordinates value that chip light emitting coordinate figure and LED component are luminous, increase the concentration of this single-component phosphor, the chromaticity coordinates of LED component luminescence is towards the straight line of long wave direction deviation chip light emitting coordinate figure with fluorescent material coordinate figure place, until the chromaticity coordinates of LED component luminescence reaches the target color coordinates value that LED component is luminous.
The mechanism of the present invention is: find according to exciting of fluorescent material and color development collection of illustrative plates, there is a certain degree of coincidence in the excitation spectrum of same fluorescent material and emission spectrum, the most also partly overlapping phenomenon can be there is in the excitation spectrum of variety classes fluorescent material and emission spectrum, when this character may result in light-emitting phosphor, the phenomenon of self-absorption can be there is in fluorescent material itself, this self-absorption can cause light-emitting phosphor to offset to long wave direction, the skew of this transmitting wavelength is relevant with the concentration of fluorescent material, when phosphor concentration is the lowest, self-absorption is negligible, only when the concentration of fluorescent material is gradually increased, self-absorption just it is observed that.And during chip light source excitated fluorescent powder luminescence, the absorption of light can occur when light is through phosphor powder layer, scattering and reflex, in this case, the longest light penetration capacity of wavelength is the strongest, the probability being scattered is the lowest, on the contrary, the shortest light penetration power of wavelength is the most weak, the probability being scattered is the highest, when phosphor concentration is gradually increased, when light passes through phosphor powder layer, scattering and reflection are maximum to the propagation effect of light, the probability of the light scattering that wavelength is shorter is high, this light path brachium glistening light of waves that short wavelength light is walked at phosphor powder layer is long, short-wavelength light is big by the likelihood ratio long wave of absorption loss water, make LED component launch wavelength also to offset toward long wave direction.
The invention has the beneficial effects as follows: according to above-mentioned mechanism, when select a single target color coordinates value luminous with LED component closest to and fluorescent material that the coordinate figure that is upwardly deviated from is corresponding, when the concentration increasing fluorescent material, then LED component illuminant color coordinate can deviate to long wave direction, therefore, the target color coordinates value that LED component is luminous can not only be obtained, and excitation is high.
Accompanying drawing explanation
Fig. 1 is the product target practice figure of embodiment 1 correspondence.
Fig. 2 is variable concentrations yellow fluorescent powder coordinate target practice curve.
Fig. 3 is variable concentrations orange fluorescent powder target practice figure.
Fig. 4 is that aluminate YAG fluorescent powder excites and launches collection of illustrative plates.
Fig. 5 is that Nitride phosphor excites and launches collection of illustrative plates.
Detailed description of the invention
With detailed description of the invention, the present invention is further elaborated below in conjunction with the accompanying drawings.
The method being made LED component by regulation phosphor concentration is: select to be upwardly deviated from the chip light emitting coordinate figure chromaticity coordinates value place straight line luminous with LED component in CIE and closest to single-component phosphor corresponding to the coordinate figure of this straight line according to the target color coordinates value that chip light emitting coordinate figure and LED component are luminous, increase the concentration of this single-component phosphor, the chromaticity coordinates of LED component luminescence is towards the straight line of long wave direction deviation chip light emitting coordinate figure with fluorescent material coordinate figure place, until the chromaticity coordinates of LED component luminescence reaches the target color coordinates value of LED component luminescence.
Embodiment 1.
nullAs shown in Figure 1，The luminescence coordinate value of chip is (0.151,0.03)，The target color coordinates requiring LED component luminous is (0.575，0.416)，The target color coordinates of this LED component luminescence is the most special，Utilize conventional method and existing fluorescent material，Either single-component phosphor still combines fluorescent material and is all difficult to，The close fluorescent material of that can provide at present and luminous with LED component target color coordinates value be coordinate figure be (0.55,0.44) and (0.582,0.417)，According to technical scheme，Selecting coordinate figure is (0.55,0.44) orange fluorescent powder，And increase the concentration to three times of fluorescent material，Find that the chromaticity coordinates of LED component luminescence has had deviated from chip and the straight line at fluorescent material coordinate figure place，Its coordinate target practice figure is with (0.575，0.416) against CIE chromaticity coordinates modified line centered by，The target color coordinates of LED component luminescence meets the requirements.Therefore, the method utilizing the present invention, the target color coordinates that LED component can not only be made luminous reaches requirement, and its excitation is high.
Embodiment 2.
As shown in Figure 2, chip light emitting coordinate figure is (0.151,0.03), the coordinate figure of fluorescent material is (0.444,0.537), as shown in Figure 2, when the concentration of fluorescent material is relatively low, increase the concentration of fluorescent material, the chromaticity coordinates value of LED component moves closer to fluorescent material coordinate points along chip and fluorescent material coordinate figure place straight line, when continuing the concentration increasing fluorescent material, the chromaticity coordinates value of LED component is towards long wave direction deviation chip and the straight line at fluorescent material coordinate figure place, until against CIE chromaticity coordinates sideline and continuing along with phosphor concentration increase gradually red shift.In like manner, as it is shown on figure 3, find shift phenomenon too when fluorescent material coordinate figure is (0.582,0.417).
Illustrated with embodiment 2 by embodiment 1: when select a single target color coordinates value luminous with LED component closest to and fluorescent material that the coordinate figure that is upwardly deviated from is corresponding, when the concentration increasing fluorescent material, then LED component illuminant color coordinate can deviate to long wave direction, therefore, the target color coordinates value that LED component is luminous can not only be obtained, and excitation is high.
This with following mechanism to consistent: as shown in Figure 4 and Figure 5, find with color development collection of illustrative plates according to exciting of fluorescent material, there is a certain degree of coincidence in the excitation spectrum of same fluorescent material and emission spectrum, the most also partly overlapping phenomenon can be there is in the excitation spectrum of variety classes fluorescent material and emission spectrum, when this character may result in light-emitting phosphor, the phenomenon of self-absorption can be there is in fluorescent material itself, this self-absorption can cause light-emitting phosphor to offset to long wave direction, the skew of this transmitting wavelength is relevant with the concentration of fluorescent material, when phosphor concentration is the lowest, self-absorption is negligible, only when the concentration of fluorescent material is gradually increased, self-absorption just it is observed that.And during chip light source excitated fluorescent powder luminescence, the absorption of light can occur when light is through phosphor powder layer, scattering and reflex, in this case, the longest light penetration capacity of wavelength is the strongest, the probability being scattered is the lowest, on the contrary, the shortest light penetration power of wavelength is the most weak, the probability being scattered is the highest, when phosphor concentration is gradually increased, when light passes through phosphor powder layer, scattering and reflection are maximum to the propagation effect of light, the probability of the light scattering that wavelength is shorter is high, this light path brachium glistening light of waves that short wavelength light is walked at phosphor powder layer is long, short-wavelength light is big by the likelihood ratio long wave of absorption loss water, make LED component launch wavelength also to offset toward long wave direction.
Therefore, those skilled in the art are appreciated that when increasing the concentration of fluorescent material according to technical scheme and specific embodiment, and the chromaticity coordinates that LED component can be allowed luminous deviates, thus obtains the target color coordinates that LED component is luminous.
Claims (1)
1. the method making LED component by regulation phosphor concentration, it is characterized in that: select to be upwardly deviated from the chip light emitting coordinate figure chromaticity coordinates value place straight line luminous with LED component in CIE and closest to single-component phosphor corresponding to the coordinate figure of this straight line according to the target color coordinates value that chip light emitting coordinate figure and LED component are luminous, increase the concentration of this single-component phosphor, the chromaticity coordinates of LED component luminescence is towards the straight line of long wave direction deviation chip light emitting coordinate figure with fluorescent material coordinate figure place, until the chromaticity coordinates of LED component luminescence reaches the target color coordinates value that LED component is luminous.
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| CN201310742515.4A CN103840066B (en) | 2013-12-30 | 2013-12-30 | A kind of method making LED component by regulation phosphor concentration |
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| CN201310742515.4A CN103840066B (en) | 2013-12-30 | 2013-12-30 | A kind of method making LED component by regulation phosphor concentration |
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| CN103840066A CN103840066A (en) | 2014-06-04 |
| CN103840066B true CN103840066B (en) | 2016-08-17 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1319899A (en) * | 2000-03-27 | 2001-10-31 | 通用电气公司 | White lumination system with improved color output |
| US6319425B1 (en) * | 1997-07-07 | 2001-11-20 | Asahi Rubber Inc. | Transparent coating member for light-emitting diodes and a fluorescent color light source |
| CN101271939A (en) * | 2007-03-23 | 2008-09-24 | 光宝科技股份有限公司 | Luminous device with open loop control and production method thereof |
| CN101437922A (en) * | 2006-05-19 | 2009-05-20 | 三井金属矿业株式会社 | White phosphor, and white light-emitting equipment of device |
| JP2012174968A (en) * | 2011-02-23 | 2012-09-10 | Mitsubishi Electric Corp | Light-emitting device and light-emitting device group and manufacturing method |
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- 2013-12-30 CN CN201310742515.4A patent/CN103840066B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6319425B1 (en) * | 1997-07-07 | 2001-11-20 | Asahi Rubber Inc. | Transparent coating member for light-emitting diodes and a fluorescent color light source |
| CN1319899A (en) * | 2000-03-27 | 2001-10-31 | 通用电气公司 | White lumination system with improved color output |
| CN101437922A (en) * | 2006-05-19 | 2009-05-20 | 三井金属矿业株式会社 | White phosphor, and white light-emitting equipment of device |
| CN101271939A (en) * | 2007-03-23 | 2008-09-24 | 光宝科技股份有限公司 | Luminous device with open loop control and production method thereof |
| JP2012174968A (en) * | 2011-02-23 | 2012-09-10 | Mitsubishi Electric Corp | Light-emitting device and light-emitting device group and manufacturing method |
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Address after: 510890 Huadu District, Guangdong, Guangzhou Flower Town, SAST Road, No. 1, No. 1 Patentee after: Hongli Newell group Limited by Share Ltd Address before: Huadu District, Guangdong city of Guangzhou Province, 510800 East Town Airport high-tech industrial base and SAST Jingu South Road intersection Patentee before: Guangzhou Hongli Tronic Co., Ltd. |
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Granted publication date: 20160817 Termination date: 20191230 |