CN113394328B - Non-standard wide color gamut LED lighting device - Google Patents
Non-standard wide color gamut LED lighting device Download PDFInfo
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- CN113394328B CN113394328B CN202110639843.6A CN202110639843A CN113394328B CN 113394328 B CN113394328 B CN 113394328B CN 202110639843 A CN202110639843 A CN 202110639843A CN 113394328 B CN113394328 B CN 113394328B
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- color gamut
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- 238000004806 packaging method and process Methods 0.000 claims abstract description 6
- 239000000565 sealant Substances 0.000 claims abstract description 3
- 239000008393 encapsulating agent Substances 0.000 claims description 3
- 239000004593 Epoxy Substances 0.000 claims description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 2
- 229920001296 polysiloxane Polymers 0.000 claims description 2
- 238000005286 illumination Methods 0.000 abstract description 5
- 238000001228 spectrum Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 6
- 239000000843 powder Substances 0.000 description 6
- 238000002156 mixing Methods 0.000 description 4
- 239000004793 Polystyrene Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005538 encapsulation Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000005457 Black-body radiation Effects 0.000 description 1
- 206010010356 Congenital anomaly Diseases 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 235000007983 food acid Nutrition 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
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- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
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- 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
- H01L33/52—Encapsulations
- H01L33/56—Materials, e.g. epoxy or silicone resin
-
- 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
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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 non-standard wide color gamut LED lighting device, which comprises: the packaging layer of the LED chip is deposited on the LED chip after being blended by the sealant and the NdFO; the weight percentage of the NdFO in the packaging layer is 1.2% -3%; the color point of the LED lighting device is within a 5-STEP MacAdam ellipse with the central point of 0.4493,0.3958; the device has special color points, can clearly display the images in the illumination range, and has high color reproduction degree.
Description
Technical Field
The invention relates to the field of illumination, in particular to a non-standard wide color gamut LED illumination device.
Background
With the mature and rapid development of white light LED related technologies, white light LEDs are applied more and more widely in the field of lighting. The mainstream of white light LED is that a blue LED is used to excite a YAG phosphor powder which emits yellow light to mix to generate white light. The white light LED has high luminous efficiency, good stability and relatively low cost, but has congenital insufficient components of red light and green light, so that the light color parameters such as dominant color, rf, rg, R9 and the like are not ideal; the color gamut is limited, the displayed graph is not clear, the color is not rich enough, and the reduction degree of the object color is low.
Disclosure of Invention
In order to solve the above problems, the present invention provides a non-standard wide color gamut LED lighting device, which has a special color point, can clearly display a graphic within an illuminated range, and has a high color rendition.
To achieve the above object, an embodiment of the present invention in one aspect proposes a non-standard wide color gamut LED lighting device, including:
the packaging layer of the LED chip is deposited on the LED chip after being blended by the sealant and the NdFO; the weight percentage of the NdFO in the packaging layer is 1.2% -3%; the color point of the LED lighting device is within a 5-STEP MacAdam ellipse with the central point being 0.4493,0.3958.
According to the non-standard wide color gamut LED lighting device provided by the embodiment of the invention, the weight percentage of NdFO is set to be 1.2% -3%, so that parameters required by lamp equipment are given, and the long-term reliability of the product is improved; adjusting the chips of the LEDs or YAG fluorescent powder to enable the color point of the lighting device to be within a 5-STEP MacAdam ellipse with the central point being 0.4493,0.3958; therefore, the lighting device has special color points, can clearly display the images in the illumination range, and has high color reproduction degree.
The non-standard wide color gamut LED lighting device provided by the embodiment of the invention further comprises the following characteristics:
optionally, the weight percentage of the NdFO in the encapsulation layer is 1.2% to 2.5%.
Optionally, the color temperature of the LED chip is 2700K.
Optionally, the encapsulant comprises silicone, epoxy, acrylic.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
FIG. 1 is a color point diagram according to an embodiment of the invention;
FIG. 2 is a graph of the full lamp spectrum containing 1.2% NdFO according to the example of the present invention;
FIG. 3 is a full lamp spectrum containing 1.5% NdFO in accordance with the embodiment of the present invention;
FIG. 4 is a graph of a full lamp spectrum containing 2.0% NdFO according to an embodiment of the present invention;
FIG. 5 is a full lamp spectrum containing 2.5% NdFO in accordance with the embodiment of the present invention;
FIG. 6 is a full lamp spectrum of conventional Ra80 in accordance with an embodiment of the present invention;
FIG. 7 is a full lamp spectrum of conventional Ra90 according to an embodiment of the present invention;
fig. 8 is a color gamut map according to an embodiment of the present invention.
Detailed Description
The technical solution of the present invention is illustrated by specific examples below. It is to be understood that one or more method steps mentioned in the present invention do not exclude the presence of other method steps before or after the combination step or that other method steps may be inserted between the explicitly mentioned steps; it should also be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Moreover, unless otherwise indicated, the numbering of the various method steps is merely a convenient tool for identifying the various method steps, and is not intended to limit the order in which the method steps are arranged or the scope of the invention in which the invention may be practiced, and changes or modifications in the relative relationship may be made without substantially changing the technical content.
In order to better understand the above technical solutions, exemplary embodiments of the present invention are described in more detail below. While exemplary embodiments of the invention have been shown, it should be understood that the invention may be embodied in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
The invention will now be described with reference to specific examples, which are intended to be illustrative only and not to be limiting in any way.
Examples
The encapsulation layer of the LED chip is co-deposited with a thermoset plastic support, a resin gel encapsulant, and NdFO.
The color point of the lighting device made by adjusting the LED chip falls within the range of a 5-STEP MacAdam ellipse with a central point (0.4493,0.3958), such as an elliptical area shown in FIG. 1, and falls below a black body radiation curve; and the color temperature of the LED chip is made to be around 2700K. The wavelength of the LED chip is determined according to the target color point, the light-emitting wavelength of the fluorescent powder is further determined, and the red-green fluorescent powder is mixed in a proper proportion to reach the required wavelength of the fluorescent powder. Ensuring that the color point falls on the target color point ensures a region of color temperature.
An LED lighting device was constructed by including 1.2% ndfo, 1.5% ndfo, 2.0% ndfo, 2.5% ndfo, normal Ra80, and normal Ra90 in the package layer of the LED chip, and the entire lamp was assembled with a normal LED cover (a cover made of glass, PC (poly food acid ester), or PS (polystyrene), but not limited thereto) to test the change rule of the photo-chromatic parameter, and the entire lamp spectrum report of each experimental protocol is shown in fig. 2 to 7, and the light color data of each protocol, the color gamut map, and the lumen maintenance rate are shown in table 1, table 8 to table 5, respectively.
TABLE 1 complete light color data for each protocol
TABLE 2.2% NdFO Whole Lamp Life tracking data
TABLE 3.5% NdFO Whole Lamp Life tracking data
TABLE 4.0% NdFO boosted full Lamp Power Life tracking data
TABLE 5.5% NdFO Whole Lamp Life tracking data
As can be seen from the data in table 1 and fig. 2 to fig. 7, the color parameters of the LED lighting device are enhanced after mixing the NdFO compound in the white LED, and the parameter level is substantially consistent with that of the ordinary Ra90 LED lighting device, which indicates that the color rendering of the LED lighting device can be improved by mixing the NdFO compound; in addition, as can be seen from the spectrum report, due to the mixing of NdFO, an absorption peak exists in the wavelength range of 550nm to 600nm, the spectrum of the LED lighting device is changed, and the generated visible light is filtered to realize the required output spectrum; particularly, the more the proportion of NdFO is mixed, the more obvious the color parameter enhancement effect is;
as can be seen from fig. 8, the color point region set by the present embodiment, which is not the color point region defined by ANSI or IEC standards, provides a special color point LED product.
As is apparent from tables 2 to 5, the NdFO blended in an amount of 1.2% to 2.5% is highly improved in the reliability of the performance of the LED lighting device, and the higher the blending amount is, the better the effect is.
In summary, according to the non-standard wide color gamut LED lighting device of the embodiment of the present invention, the device sets the weight percentage of NdFO to 1.2% to 3%, so as to provide the lamp equipment with the required parameters and improve the long-term reliability of the product; adjusting the chips of the LEDs or YAG fluorescent powder to enable the color point of the lighting device to be within a 5-STEP MacAdam ellipse with the central point being 0.4493,0.3958; therefore, the lighting device has special color points, can clearly display the images in the illumination range, and has high color reproduction degree.
In the description of the specification, reference to the description of "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above should not be understood to necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by those skilled in the art.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (3)
1. A non-standard wide color gamut LED lighting device, comprising:
the packaging layer of the LED chip is deposited on the LED chip after being blended by the sealant and the NdFO; the weight percentage of the NdFO in the packaging layer is 1.2% -2.5%; the color point of the LED lighting device is within a 5-STEP MacAdam ellipse with the center point of 0.4493,0.3958.
2. The non-standard wide color gamut LED lighting device according to claim 1, wherein the LED chip has a color temperature of 2700K.
3. The non-standard wide color gamut LED lighting device according to claim 1, wherein the encapsulant comprises silicone, epoxy, acrylic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110639843.6A CN113394328B (en) | 2021-06-08 | 2021-06-08 | Non-standard wide color gamut LED lighting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110639843.6A CN113394328B (en) | 2021-06-08 | 2021-06-08 | Non-standard wide color gamut LED lighting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113394328A CN113394328A (en) | 2021-09-14 |
| CN113394328B true CN113394328B (en) | 2023-02-10 |
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| CN202110639843.6A Active CN113394328B (en) | 2021-06-08 | 2021-06-08 | Non-standard wide color gamut LED lighting device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6406069B2 (en) * | 2014-03-15 | 2018-10-17 | 日亜化学工業株式会社 | Light-emitting device selection method, lighting device manufacturing method, and lighting device |
| JP7005494B2 (en) * | 2015-12-11 | 2022-02-04 | コンシューマー ライティング （ユー．エス．），エルエルシー | LED device with variable color filtering using multiple neodymium and fluorine compounds |
| CA3016820C (en) * | 2016-03-16 | 2022-09-20 | GE Lighting Solutions, LLC | Led apparatus employing neodymium based materials with variable content of fluorine and oxygen |
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