CN110943074A - Fluorescent film with novel lattice structure for decorative lighting - Google Patents
Fluorescent film with novel lattice structure for decorative lighting Download PDFInfo
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- 239000000843 powder Substances 0.000 claims abstract description 92
- 238000002156 mixing Methods 0.000 claims abstract description 66
- 238000000034 method Methods 0.000 claims abstract description 24
- 239000003086 colorant Substances 0.000 claims abstract description 21
- 239000011159 matrix material Substances 0.000 claims abstract description 4
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 36
- 108010043121 Green Fluorescent Proteins Proteins 0.000 claims description 12
- 239000003292 glue Substances 0.000 claims description 11
- 238000007650 screen-printing Methods 0.000 claims description 11
- 239000011248 coating agent Substances 0.000 claims description 10
- 238000000576 coating method Methods 0.000 claims description 10
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- 239000000654 additive Substances 0.000 claims description 9
- 230000000996 additive effect Effects 0.000 claims description 9
- 238000004806 packaging method and process Methods 0.000 claims description 7
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- 239000005022 packaging material Substances 0.000 claims description 5
- 238000012216 screening Methods 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 238000005286 illumination Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000000741 silica gel Substances 0.000 claims description 3
- 229910002027 silica gel Inorganic materials 0.000 claims description 3
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical group [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims description 2
- 239000002518 antifoaming agent Substances 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- 150000004767 nitrides Chemical group 0.000 claims description 2
- 238000005507 spraying Methods 0.000 claims description 2
- 238000005303 weighing Methods 0.000 claims description 2
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L25/00—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof
- H01L25/03—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes
- H01L25/04—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers
- H01L25/075—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group H01L33/00
- H01L25/0753—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group H01L33/00 the devices being arranged next to each other
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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
- H01L33/50—Wavelength conversion elements
- H01L33/501—Wavelength conversion elements characterised by the materials, e.g. binder
- H01L33/502—Wavelength conversion materials
- H01L33/504—Elements with two or more wavelength conversion materials
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- Power Engineering (AREA)
- Computer Hardware Design (AREA)
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Abstract
The invention discloses a fluorescent film with a novel dot matrix structure for decorative lighting, which comprises a patterned plane red-green-blue fluorescent powder pixel array, wherein the red-green-blue fluorescent powder pixel array comprises an LED red color block, an LED green color block and an LED blue color block, the LED red color block, the LED green color block and the LED blue color block are of square structures with the same size and are mutually independent, and the color blocks in the red-green-blue fluorescent powder pixel array represent pixel points. The invention belongs to the technical field of decorative lighting, provides a fluorescent film with a novel lattice structure for decorative lighting based on a color-adding method principle of a light-mixing principle, obtains light emission of various colors by determining the proportion of red, green and blue (RGB) fluorescent powder and the layout of a pixel array, reduces the mutual contact of emergent light of the red, green and blue (RGB) fluorescent powder and other fluorescent powder particles compared with direct mixing, reduces internal secondary absorption, further improves the light-emitting efficiency of a colorful LED, and reduces the cost.
Description
Technical Field
The invention belongs to the technical field of decorative lighting, and particularly relates to a fluorescent film with a novel lattice structure for decorative lighting.
Background
With the improvement of life quality of people, a pure white light LED cannot meet the requirements of people for decorative lighting, and various methods for obtaining multicolor luminescence have been proposed at present for obtaining LED light of various colors, wherein the combination of red, green and blue (RGB) chips is the most common method for manufacturing multicolor devices (such as landscape lighting lamps, liquid crystal screens and the like), but products adopting the method need to design circuits, control currents to adjust light colors, and are complex in operation and too high in cost. In order to solve the problems, the colorful LED fluorescent film is prepared by a glue dispensing method in the prior art.
The patent of application number CN109755233A discloses a method for preparing a colorful LED by adopting an LED dispensing packaging process, which comprises the steps of mixing fluorescent powder and glue, and packaging to prepare an LED after dispensing and baking; however, the multicolor light obtained by the glue mixing method can increase the internal secondary absorption due to the mutual contact of the fluorescent powder, and the luminous efficiency is reduced.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a fluorescent film with a novel lattice structure for decorative lighting based on the additive method principle of the light mixing principle, obtains the light emission of various colors by determining the proportion of red, green and blue (RGB) fluorescent powder and the layout of a pixel array, reduces the mutual contact of the emergent light of the red, green and blue (RGB) fluorescent powder and other fluorescent powder particles compared with direct mixing, reduces the internal secondary absorption, further improves the light emitting efficiency of a colorful LED, and reduces the cost.
The technical scheme adopted by the invention is as follows: the utility model provides a fluorescent screen for decorating novel lattice structure of illumination, includes patterned plane Red Green Blue (RGB) phosphor powder pixel array, Red Green Blue (RGB) phosphor powder pixel array includes LED red colour block, LED green colour lump and LED blue colour lump, LED red colour block, LED green colour lump and LED blue colour lump are the square type structure that the size is the same and mutually independent, in Red Green Blue (RGB) phosphor powder pixel array each colour block represents a pixel, and the more colour lump number represents that the shared proportion is higher, through adjusting its pixel unit size, obtains even light outgoing, and mutually independent colour lump arrangement reduces phosphor powder emergent light and other phosphor powder granule interact probability, LED red colour block, LED green colour lump and LED blue colour lump arrangement mode and space account ratio are confirmed by the additive method principle of mixed light principle, through adjusting LED red colour lump, LED green colour lump, LED blue colour lump, The space occupation of the LED green color block and the LED blue color block realizes multicolor light emission; according to the additive color emission principle in the light mixing principle, light of each color can be mixed by adopting red, green and blue (RGB) light according to a certain proportion, so the red, green and blue (RGB) light is called primary color light, the three primary colors of red, green and blue (RGB) are mixed in pairs and called primary mixed light, the primary mixed light can obtain three new colors, namely yellow obtained by mixing red and green light, purple obtained by mixing red and blue light and cyan obtained by mixing green and blue light; the light of red, green and blue (RGB) three primary colors and the light of a new color obtained by primary light mixing are mixed two by two again to be called secondary light mixing, the secondary light mixing can obtain new light of 9 different colors, and by analogy, tertiary light mixing, quartic light mixing and the like can be carried out, and the color of the light is continuously enriched along with the increase of the light mixing times.
The preparation of the fluorescent film with the novel lattice structure for decorative lighting comprises the following steps:
1) preparing materials: preparing LED red fluorescent powder, LED green fluorescent powder, LED blue fluorescent powder, an organic carrier, an auxiliary packaging material and auxiliary packaging equipment;
2) designing a fluorescent powder layer arrangement pattern template based on a light mixing principle: designing arrangement pattern templates with different light mixing times by adopting a uniform and equidistant arrangement mode according to the additive color method principle of the light mixing principle;
3) preparing a fluorescent film with a dot matrix arrangement structure, wherein the steps comprise screening, weighing, mixing, defoaming, printing and drying processes, screening LED red fluorescent powder, LED green fluorescent powder or LED blue fluorescent powder, mixing the screened LED red fluorescent powder, LED green fluorescent powder or LED blue fluorescent powder with an organic carrier respectively to prepare powder glue with corresponding colors, and coating and printing corresponding positions on the pattern template designed in the step 2) to form corresponding LED red color blocks, LED green color blocks or LED blue color blocks, wherein different colors in the fluorescent film structure represent different color blocks;
4) and packaging and forming the fluorescent film structure consisting of the corresponding LED red color block, the LED green color block or the LED blue color block.
Further, the LED red fluorescent powder is nitride fluorescent powder and derivatives thereof; the LED green fluorescent powder is silicate fluorescent powder and derivatives thereof; the LED blue fluorescent powder is BAM fluorescent powder and derivatives thereof.
Further, the light mixing times may adopt primary light mixing, secondary light mixing or multiple light mixing.
Further, the printing step adopts one or more of a screen printing method, a mask method and a spraying method.
Further, the packaging material comprises insulating glue, silica gel, a defoaming agent and a diffusing agent, and the auxiliary packaging equipment comprises an LED support.
Preferably, the content of the organic carrier in the fluorescent glue is 25 wt%.
The beneficial effects obtained by adopting the scheme are as follows: the invention adopts a novel fluorescent film structure for the colorful LED, utilizes the additive method principle in the light mixing principle, realizes colorful light emission by determining the proportion of the pixel array and the layout of the pixel array of the patterned plane red, green and blue (RGB) fluorescent powder and adopting a mutually independent, uniform and equidistant lattice arrangement structure of the fluorescent film, and reduces the mutual contact of the fluorescent powder, reduces the secondary absorption behavior in the fluorescent film and further improves the luminous efficiency of the colorful LED compared with the fluorescent film obtained by completely mixing and directly mixing the red, green and blue (RGB) fluorescent powder. The LED fluorescent film manufactured by the invention can realize 15 output colors, and more output colors can be obtained based on a color adding method, the application field of a pixel array red, green and blue (RGB) fluorescent powder layer in the industry of the decorative lighting field is greatly improved and expanded, meanwhile, the optical performance of the packaged LED can be improved by the design of the structure of the fluorescent film layer, including light emitting efficiency, light color uniformity, color temperature and the like, colorful light emitting is realized, and uniform light emitting is obtained by adjusting the unit size of the pixel point.
Drawings
FIG. 1 is a schematic view of the additive color mixing process of a fluorescent film with a novel lattice structure for decorative lighting according to the present invention;
FIG. 2 is a schematic diagram of a fluorescent film structure with different red, green and blue (RGB) phosphor powder mixing ratios of the fluorescent film of the novel lattice structure for decorative lighting according to the present invention;
FIG. 3 is a pattern template for arranging an LED phosphor layer of a phosphor film of a novel lattice structure for decorative lighting according to the present invention;
FIG. 4 is a graph showing the results of optical parameter tests of a novel lattice-structured fluorescent film for decorative lighting according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
FIG. 1 is a schematic diagram of a light mixing process based on an additive color method, in which light numbers 1-3 represent three primary colors of light, respectively, and the light number 1 represents red phosphor No. 1, the light number 1 represents green phosphor No. 2, and the light number 3 represents blue phosphor No. 3; the numbers 4 to 6 represent three new colors obtained by primary light mixing, namely, yellow number 4 obtained by mixing red number 1 with green number 2, purple number 5 obtained by mixing red number 1 with blue number 3, and cyan number 6 obtained by mixing green number 2 with blue number 3; the numbers 7 to 15 represent new 9 lights with different colors obtained by mixing red, green and blue (RGB) light and light with a new color obtained by primary mixing, which are respectively the number 7 obtained by mixing red 1 with yellow 4, the number 8 obtained by mixing red 1 with violet 5, the number 9 obtained by mixing red 1 with cyan 6, the number 10 obtained by mixing green 2 with yellow 4, the number 11 obtained by mixing green 2 with violet 5, the number 12 obtained by mixing green 2 with cyan 6, the number 13 obtained by mixing blue 3 with yellow 4, the number 14 obtained by mixing blue 3 with blue 5, and the number 15 obtained by mixing blue 3 with cyan 6.
Fig. 2 is a corresponding fluorescent film structure designed based on a light mixing principle, and the pattern templates for arranging No. 1-15 fluorescent powder layers in fig. 2 represent No. 1-15 lights with different light mixing times and light mixing processes in fig. 1, wherein No. 1-3 are Red Green Blue (RGB) fluorescent powder primary color fluorescent films, No. 4-6 are Red Green Blue (RGB) fluorescent powders and fluorescent films obtained by primary light mixing, and No. 7-15 are Red Green Blue (RGB) fluorescent powders and fluorescent films obtained by secondary light mixing.
Fig. 3 is a template of a pattern for arranging a phosphor layer, where fig. 3(a) is a position distribution of three primary colors of red, green, and blue (RGB) under different templates in fig. 2, fig. 3(b) represents a position distribution of position 1 in fig. 3(a), fig. 3(c) represents a position distribution of position 2 in fig. 3(a), and fig. 3(d) represents a position distribution of position 3 in fig. 3(a), and the three primary colors of red, green, and blue (RGB) can be coated at the corresponding position 1, position 2, or position 3 according to a color mixing requirement.
FIG. 4(a) is a graph showing the results of optical parameter measurements on fluorescent films Nos. 7 to 15, 4(b) is a graph showing the results of optical parameter measurements on fluorescent films Nos. 7 to 9, 4(c) is a graph showing the results of optical parameter measurements on fluorescent films Nos. 10 to 12, and 4(d) is a graph showing the results of optical parameter measurements on fluorescent films Nos. 13 to 15.
As shown in fig. 1-4, multicolor phosphor layers were produced by stencil printing techniques to verify the actual effect of the emitted light (including color and uniformity). 15 lattice structure fluorescent powder templates with the side length of 20mm and the thickness of 1mm are designed according to different red, green and blue (RGB) fluorescent powder mixing ratios. The phosphor template preparation method is described in detail in the previous patent (CN109935677A) for a new phosphor film structure for white LEDs, and the samples of 4-15 in the following examples are obtained by the same method, wherein, 7-15 phosphor layers can be printed by the same template because of their similar configuration, as shown in fig. 3, and three template patterns 3(b), 3(c) and 3(d) are respectively responsible for positions 1, 2 and 3 in fig. 3 (a). For a phosphor layer with three phosphors, first one Red Green Blue (RGB) phosphor is mixed with an organic vehicle and printed at position 1, after drying the other phosphor is mixed and printed at position 1, position 2 or 3, the subsequent steps are similar. The optical properties, including the spectrum, the actual output light color and chromaticity coordinates, of the 15 phosphor layers were obtained by a Chameleon-QY system (Zolix Instruments co., Ltd, beijing, china).
Example 1: preparation of 7-9 multicolor fluorescent films in FIG. 2
1) The preparation method comprises the following steps: preparing an ultraviolet chip, fluorescent powder for an LED and other packaging materials; in the embodiment, the excitation wavelength of the ultraviolet chip is 360nm and 1W; the LED red fluorescent powder is N630 fluorescent powder, has relatively stable excitation efficiency from an ultraviolet band of 300nm to a blue band of about 500nm, and has a peak wave of an emission spectrum of 625 nm; the green fluorescent powder is S525 fluorescent powder, has more stable excitation efficiency from 300nm to about 480nm, and the peak wave of an emission spectrum is 525 nm; the blue fluorescent powder is BAM fluorescent powder, has more stable excitation efficiency from 350nm to about 400nm, and the peak wave of an emission spectrum is 450 nm; other encapsulating materials include LED supports, insulating glue, silica gel, defoamers, diffusers, and the like.
2) Preparing a pattern template for arranging the fluorescent powder layer: and the arrangement mode of uniform equal intervals is adopted, wherein different colors represent different color blocks. The square arrangement mode is adopted in the implementation example, the square arrangement model is prepared in a screen printing mode, the number of the screen meshes is 150, the pixel points are 1.0 multiplied by 1.0mm, and the total color block areas are 20 multiplied by 20.
3) The fluorescent film No. 7 in FIG. 2 was prepared, and in order to distinguish the multicolor fluorescent films, No. 7 was named 7-RGB 310: preparing red, green and blue fluorescent powder glue respectively and coating the glue on the surface (PMMA) of a colorless transparent thin plate to form a red color block, a green color block and a blue color block: mixing the fluorescent powder with an organic carrier, wherein the mass fractions of red, green and blue are respectively 25 wt%, coating the red fluorescent powder on the position (a)1 in the figure 3 by a screen printing mode, and drying for 30min at 80 ℃; coating red fluorescent powder on the position of (a)2 in the figure 3, and drying for 30min at 80 ℃; coating green fluorescent powder on the position 3 in the figure 3(a), and drying for 30min at 80 ℃.
4) Preparing the No. 8 fluorescent film in the figure 2, in order to distinguish the colorful fluorescent film, the No. 8 is named as 8-RGB301, red fluorescent powder is coated on the figure 3(a)1 in a screen printing mode, and the red fluorescent powder is dried for 30min at the temperature of 80 ℃; coating red fluorescent powder on the position of (a)2 in the figure 3, and drying for 30min at 80 ℃; coating blue fluorescent powder on the position 3 in the figure 3(a), and drying for 30min at 80 ℃. The other steps are the same.
5) Preparing a No. 9 fluorescent film in the figure 2, in order to distinguish the colorful fluorescent film, the No. 9 is named as 9-RGB211, red fluorescent powder is coated on the figure 3(a)1 in a screen printing mode, and the red fluorescent powder is dried for 30min at the temperature of 80 ℃; coating blue fluorescent powder on the position of (a)2 in the figure 3, and drying for 30min at 80 ℃; coating green fluorescent powder on the position 3 in the figure 3(a), and drying for 30min at 80 ℃.
6) Optical parameters were tested using a quantum yield integrating sphere.
Example 2 was carried out: preparation of 10-12 multicolor fluorescent film in FIG. 2
The procedure is the same as that of the first embodiment, only the position of screen printing is different, which can be screen printing according to the shape of 10-13 in fig. 2, in order to distinguish the multicolor fluorescent film, the number 10 is named as 10-RGB130, the number 11 is named as 11-RGB121, and the number 10 is named as 10-RGB 131.
Example 3 of implementation: preparation of 13-15 multicolor fluorescent films in FIG. 3
The procedure is the same as in the first embodiment, only the position of screen printing is different, this can be screen printed according to the shape of 10-13 in fig. 2, in order to distinguish the multicolor fluorescent film, 13 is named 13-RGB112, 14 is named 14-RGB103, 15 is named 15-RGB 013.
The results of the optical performance tests of the above 3 examples are shown in fig. 4:
as can be seen from fig. 4, for a specific red, green, and blue (RGB) phosphor, the peak intensity of the corresponding phosphor in the final emission spectrum can be adjusted by adjusting the space ratio of the red, green, and blue (RGB) phosphor used in the screen printing, so as to change the color of the emitted light.
1) The secondary absorption behaviors of different degrees can occur in the fluorescent films with different structures, so that the contents of red, green and blue (RGB) lights in the lights finally emitted by the same using amount of the fluorescent powder are different, the light colors finally emitted are different, and the colorful light emission can be realized by adjusting the arrangement structure of the fluorescent film layers.
2) Among red, green, and blue (RGB) phosphors used in this experiment, the green phosphor has the highest luminous intensity, and the red phosphor is the next, and the blue phosphor is the weakest luminous intensity. For blue phosphor, two curves, 15-RGB031 and 8-RGB301, can be found: when the content of the blue fluorescent powder is the same, the 8-RGB301 has stronger blue light emission, which shows that the absorption intensity of the green fluorescent powder to the blue light is higher than that of the red fluorescent powder. Comparing the two curves 7-RGB310 and 8-RGB301 can find that: when the content of the red fluorescent powder is constant, the 7-RGB310 has stronger red light emission, which indicates that the red fluorescent powder mainly absorbs green light and secondly absorbs blue light energy. Of course, the result may be different for different kinds of phosphors, and the absorption capability of the phosphor for different light rays and the emission intensity of the phosphor itself are influenced by the absorption coefficient, excitation spectrum, emission spectrum, and other comprehensive factors.
3) The light emitting color of the final LED product can be conveniently changed by adjusting the proportion of red, green and blue (RGB) fluorescent powder on the transparent thin plate, the color mixing range is wide, the mixed light color can be randomly adjusted within the triangular range of the three CIE coordinates encircled by the red, green and blue (RGB) fluorescent powder, and the light mixing precision is directly related to the mixing proportion of the red, green and blue (RGB) fluorescent powder.
4) The samples are prepared by combining the structures 7 to 15 with a screen printing technology, and the CIE coordinate array is measured by a quantum yield integrating sphere and the emergent color during actual excitation is observed, so that the emergent color is basically consistent with the simulation result, and the coincidence is better.
The present invention and its embodiments have been described above, and the description is not intended to be limiting, and the drawings are only one embodiment of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (5)
1. The utility model provides a fluorescent screen for decorating novel dot matrix structure of illumination, includes the red green blue phosphor powder pixel array in patterned plane, red green blue phosphor powder pixel array includes LED red colour block, LED green colour lump and LED blue colour lump, LED red colour block, LED green colour lump and LED blue colour lump are the square type structure that the size is the same and mutual independence, the colour block in the red green blue phosphor powder pixel array represents the pixel, LED red colour block, LED green colour lump and LED blue colour lump arrangement mode and space ratio are confirmed by the additive method principle of muddy light principle.
The preparation of the fluorescent film comprises the following steps:
1) preparing materials: preparing LED red fluorescent powder, LED green fluorescent powder, LED blue fluorescent powder, an organic carrier, an auxiliary packaging material and auxiliary packaging equipment;
2) designing a fluorescent powder layer arrangement pattern template based on a light mixing principle: designing pattern templates with different light mixing times in a uniform and equidistant arrangement mode according to the additive color method principle of the light mixing principle;
3) preparing a fluorescent film with a dot matrix arrangement structure, wherein the steps comprise screening, weighing, mixing, defoaming, printing and drying processes, screening LED red fluorescent powder, LED green fluorescent powder or LED blue fluorescent powder, mixing the screened LED red fluorescent powder, LED green fluorescent powder or LED blue fluorescent powder with an organic carrier respectively to prepare powder glue with corresponding colors, and coating and printing corresponding positions on the pattern template designed in the step 2) to form corresponding LED red color blocks, LED green color blocks or LED blue color blocks, wherein different colors in the fluorescent film structure represent different color blocks;
4) and packaging and forming the fluorescent film structure consisting of the corresponding LED red color block, the LED green color block or the LED blue color block.
2. The phosphor film with novel lattice structure for decorative lighting of claim 1, wherein the LED red phosphor is a nitride phosphor and derivatives thereof; the LED green fluorescent powder is silicate fluorescent powder and derivatives thereof; the LED blue fluorescent powder is BAM fluorescent powder and derivatives thereof.
3. The phosphor film with novel lattice structure for decoration and illumination as claimed in claim 1, wherein said light mixing times is one time light mixing, two times light mixing or multiple times light mixing.
4. The novel lattice structured fluorescent film for decorative lighting according to claim 1, wherein said printing step is one or more of screen printing, masking, and spraying.
5. The novel lattice structured fluorescent film for decorative lighting of claim 1, wherein said packaging material comprises an insulating glue, a silica gel, a defoaming agent and a diffusing agent, and said auxiliary packaging device comprises an LED support.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101496188A (en) * | 2006-07-28 | 2009-07-29 | 港大科桥有限公司 | Method of making white light LEDs and continuously color tunable LEDs |
| CN103972222A (en) * | 2014-06-03 | 2014-08-06 | 宁波升谱光电半导体有限公司 | LED (light-emitting diode) light source packaging method, LED light source packaging structure and light source module |
| JP2016187054A (en) * | 2013-02-15 | 2016-10-27 | シャープ株式会社 | LED light source for plant cultivation |
| CN109935677A (en) * | 2019-04-01 | 2019-06-25 | 南京航空航天大学 | A kind of novel white-light LED fluorescence membrane structure and preparation method |
-
2019
- 2019-11-14 CN CN201911112933.9A patent/CN110943074A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101496188A (en) * | 2006-07-28 | 2009-07-29 | 港大科桥有限公司 | Method of making white light LEDs and continuously color tunable LEDs |
| JP2016187054A (en) * | 2013-02-15 | 2016-10-27 | シャープ株式会社 | LED light source for plant cultivation |
| CN103972222A (en) * | 2014-06-03 | 2014-08-06 | 宁波升谱光电半导体有限公司 | LED (light-emitting diode) light source packaging method, LED light source packaging structure and light source module |
| CN109935677A (en) * | 2019-04-01 | 2019-06-25 | 南京航空航天大学 | A kind of novel white-light LED fluorescence membrane structure and preparation method |
Non-Patent Citations (1)
| Title |
|---|
| HAITAO ZHUA等: "Luminous efficiency enhancement of WLEDs via patterned RGB phosphor arrays", 《JOURNAL OF LUMINESCENCE》 * |
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