CN101877376A - Organic luminescent material-clad light-emitting diode and manufacturing method thereof - Google Patents
Organic luminescent material-clad light-emitting diode and manufacturing method thereof Download PDFInfo
- Publication number
- CN101877376A CN101877376A CN2009100830798A CN200910083079A CN101877376A CN 101877376 A CN101877376 A CN 101877376A CN 2009100830798 A CN2009100830798 A CN 2009100830798A CN 200910083079 A CN200910083079 A CN 200910083079A CN 101877376 A CN101877376 A CN 101877376A
- Authority
- CN
- China
- Prior art keywords
- light
- emitting diode
- luminous organic
- solid solution
- organic material
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 7
- 239000000463 material Substances 0.000 claims abstract description 27
- 239000006104 solid solution Substances 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 14
- 239000002904 solvent Substances 0.000 claims abstract description 13
- 238000002156 mixing Methods 0.000 claims abstract 3
- 239000011368 organic material Substances 0.000 claims description 28
- 238000004020 luminiscence type Methods 0.000 claims description 23
- 239000000203 mixture Substances 0.000 claims description 18
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims description 12
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 claims description 8
- 229920002319 Poly(methyl acrylate) Polymers 0.000 claims description 6
- 239000004698 Polyethylene Substances 0.000 claims description 6
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims description 6
- -1 polyethylene Polymers 0.000 claims description 6
- 229920000573 polyethylene Polymers 0.000 claims description 6
- 239000004926 polymethyl methacrylate Substances 0.000 claims description 6
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims description 5
- 229920001756 Polyvinyl chloride acetate Polymers 0.000 claims description 4
- 229920003214 poly(methacrylonitrile) Polymers 0.000 claims description 4
- 229920002239 polyacrylonitrile Polymers 0.000 claims description 4
- 239000004793 Polystyrene Substances 0.000 claims description 3
- 229920002125 Sokalan® Polymers 0.000 claims description 3
- 150000002894 organic compounds Chemical group 0.000 claims description 3
- 125000002524 organometallic group Chemical group 0.000 claims description 3
- 229920000058 polyacrylate Polymers 0.000 claims description 3
- 239000004584 polyacrylic acid Substances 0.000 claims 2
- 229920002223 polystyrene Polymers 0.000 claims 2
- 239000003086 colorant Substances 0.000 abstract description 6
- 230000003111 delayed effect Effects 0.000 abstract 1
- 238000005286 illumination Methods 0.000 abstract 1
- 239000002861 polymer material Substances 0.000 abstract 1
- 238000002360 preparation method Methods 0.000 description 5
- 238000004528 spin coating Methods 0.000 description 5
- 239000004065 semiconductor Substances 0.000 description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 238000005538 encapsulation Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 229940044192 2-hydroxyethyl methacrylate Drugs 0.000 description 1
- MASVCBBIUQRUKL-UHFFFAOYSA-N POPOP Chemical compound C=1N=C(C=2C=CC(=CC=2)C=2OC(=CN=2)C=2C=CC=CC=2)OC=1C1=CC=CC=C1 MASVCBBIUQRUKL-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000005281 excited state Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000007850 fluorescent dye Substances 0.000 description 1
- MCJGNVYPOGVAJF-UHFFFAOYSA-N quinolin-8-ol Chemical compound C1=CN=C2C(O)=CC=CC2=C1 MCJGNVYPOGVAJF-UHFFFAOYSA-N 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- YYMBJDOZVAITBP-UHFFFAOYSA-N rubrene Chemical compound C1=CC=CC=C1C(C1=C(C=2C=CC=CC=2)C2=CC=CC=C2C(C=2C=CC=CC=2)=C11)=C(C=CC=C2)C2=C1C1=CC=CC=C1 YYMBJDOZVAITBP-UHFFFAOYSA-N 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Images
Landscapes
- Electroluminescent Light Sources (AREA)
Abstract
The invention discloses an organic luminescent material-clad light-emitting diode and a manufacturing method thereof. The light-emitting diode comprises a light-emitting diode bracket and a light-emitting chip which is packaged in the light-emitting diode bracket by a transparent shell, wherein the external surface of the light-emitting diode is coated with a solid solution film consisting of the organic luminescent material, a high polymer material and a solvent; and a cathode and an anode of the light-emitting chip are respectively connected with two leads. The method for manufacturing the light-emitting diode has the advantages of simple manufacturing process and capability of easily blending various colors according to actual requirements. When the light-emitting diode provided by the invention is used for illumination, only single driving voltage needs applying; and the attenuation of emitting colors can be delayed, so the light-emitting diode has good application prospect.
Description
Technical field
The present invention relates to light-emitting diode (LED) that a kind of luminous organic material coats and preparation method thereof, particularly a kind ofly use the method that light-emitting diode cooperates its surface coated organic luminous layer to make versicolor light-emitting diode.
Background technology
Light-emitting diode (LED) be a kind of along the semiconductor p-n junction by the luminous element of forward current.Compare with the traditional lighting lamp, that light-emitting diode has is safe, power saving, advantages such as volume is little, the life-span is long, environmental protection, and along with the raising of this art, can realize semiconductor lighting future.
Currently realized that commercial LED is by GaAlAs, AlInGaP, III-V family alloy semiconductor (ternary, quaternary) materials such as InGaN and AlInGaN are made.The traditional manufacture method of light-emitting diode is that the luminescence chip with different colours encapsulates, and by different driving voltages, makes light-emitting diode send the light of different colours; The luminescence chip mutual encapsulation that the light-emitting diode of blend color then needs two above different colours together, but solid brilliant routing is comparatively complicated during encapsulation, and because the luminescence chip material difference of two different colours, required driving voltage is also different, so in design, must on each chip, add different driving voltages to adjust brightness and color.New technology adopts a luminescence chip can produce multiple color, mainly be to apply the layer of fluorescent powder layer at chip surface, photostimulable phosphor layer by the luminescence chip generation, make phosphor powder layer produce another color of light, the color colour mixture with original light that luminescence chip sends produces new color again.The light-emitting diode that utilizes mixed light to make because light-emitting diode can produce heat after lighting, influence the stability of fluorescent material, causes the luminous efficiency reduction of fluorescent material, makes light-emitting diode generation colour cast, this be have at present to be solved and improved.
Summary of the invention
The purpose of this invention is to provide the Light-emitting Diode And Its Making Method that a kind of luminous organic material coats.
Light-emitting diode provided by the invention, its structural representation comprise LED support 2, are packaged in the luminescence chip 1 of described LED support inside with transparent outer cover as shown in Figure 1; Wherein, the outer surface of described light-emitting diode is coated with the solid solution film 3 of luminous organic material, and the negative electrode of described luminescence chip is connected two lead-in wires 4 and 5 respectively with anode.
The method of the above-mentioned light-emitting diode of making provided by the invention, be that luminescence chip is placed on the LED support, after encapsulating described LED support with transparent outer cover, the solid solution film of luminous organic material evenly is coated in the outer surface of described light-emitting diode, and respectively be connected a lead-in wire to described light-emitting diode by the negative electrode of described luminescence chip and anode, obtain light-emitting diode provided by the invention.
In this light-emitting diode, the absorption bands of luminous organic material comprises all or part of exciting light wave band.The light that produces by luminescence chip can excite luminous organic material, makes luminous organic material produce the light of another kind of color, and the light of this color mixes with the light color that luminescence chip sends, and promptly produces a kind of light of new color.
In this method, luminescence chip is ultraviolet, blueness or green emitting chip; The luminescent material of described luminous organic material for excited by ultraviolet light, blue light or green glow; The described luminescent material that excited by ultraviolet light, blue light or green glow is organic compound or organometallic complex; Described macromolecular material is any one or the arbitrarily several mixture that mixes with arbitrary proportion in polymethyl methacrylate (PMMA), polystyrene (PS), polyacrylic acid (PAA), polyvinyl chloride acetate (PVCA), polyacrylonitrile (PAN), polyethylene (PE), polymethylacrylic acid-2-hydroxyl ethyl ester (PHEMA), polyacrylate (PEA), polymethyl acrylate (PMA) or the polymethacrylonitrile (PMAN); Described solvent is any one or the arbitrarily several mixture that mixes with arbitrary proportion in chloroform, ethyl acetate or the oxolane.
This solid solution film is prepared as follows and obtains: is that 1000: 1～500: 1 amount joins in the solvent with macromolecular material and luminous organic material according to mass ratio, ultrasonic macromolecular material and the luminous organic material of making dissolves, mixes, utilize conventional various film build methods to carry out film forming, as spin-coating method, obtain the solid solution film.The consumption of solvent gets final product can dissolve raw material and to be suitable for film forming.
The method for preparing light-emitting diode provided by the invention, manufacture craft is simple, can very easily mix shades of colour according to actual needs.When utilizing light-emitting diode provided by the invention to throw light on, only need apply single driving voltage, and can delay the glow color decay, have good application prospects.
Description of drawings
Fig. 1 is a light-emitting diode structure schematic diagram provided by the invention.
Fig. 2 is that light-emitting diode provided by the invention is versicolor luminous.
Embodiment
The invention will be further described below in conjunction with specific embodiment, but the present invention is not limited to following examples.
With LED support the ultra-violet light-emitting chip is encapsulated.With luminous organic material POPOP 0.2mg shown in macromolecular material polyethylene (PE) 200mg and the formula I, join in 20 milliliters the oxolane, make its dissolving, mix ultrasonic half an hour, the solid solution film of luminous organic material evenly is coated in the outer surface of described light-emitting diode by spin coating, and respectively be connected one by the negative electrode of luminescence chip with anode and go between to light-emitting diode, obtain blue LED provided by the invention.
(formula I)
With LED support the ultra-violet light-emitting chip is encapsulated.With macromolecular material polymethyl methacrylate (PMMA) 200mg and luminous organic material three (oxine) aluminium 0.25mg, join in 20 milliliters the chloroform, make its dissolving, mix ultrasonic half an hour, the solid solution film of luminous organic material evenly is coated in the outer surface of described light-emitting diode by spin coating, and respectively be connected one by the negative electrode of luminescence chip with anode and go between to light-emitting diode, obtain green LED provided by the invention.
With LED support the ultra-violet light-emitting chip is encapsulated.With macromolecular material polymethyl acrylate (PMA) 200mg and luminous organic material rubrene 0.2mg, join in 20 milliliters the oxolane, make its dissolving, mix ultrasonic half an hour, the solid solution film of luminous organic material evenly is coated in the outer surface of described light-emitting diode by spin coating, and respectively be connected one by the negative electrode of luminescence chip with anode and go between to light-emitting diode, obtain yellow light-emitting diode provided by the invention.
With LED support the blue-light-emitting chip is encapsulated.With macromolecular material poly-(2-hydroxyethyl methacry-late) (PHEMA) luminous organic material SalHBP 0.4mg shown in 200mg and the formula II join in 30 milliliters the ethyl acetate, make its dissolving, mix ultrasonic half an hour, the solid solution film of luminous organic material evenly is coated in the outer surface of described light-emitting diode by spin coating, and respectively be connected one by the negative electrode of luminescence chip with anode and go between to light-emitting diode, obtain white light-emitting diode provided by the invention.
Wherein, compound is prepared as follows shown in the formula II: Li, S.; Yang, G.; Et al. " Understanding the Pressure-Induced Emission Enhancement for Triple FluorescentCompound with Excited-State Intramolecular Proton Transfer ", J.Phys.Chem.A, 2007,111,11793.
(formula II)
Claims (10)
1. light-emitting diode comprises LED support, is packaged in the luminescence chip of described LED support inside with transparent outer cover; It is characterized in that: the outer surface of described light-emitting diode applies the solid solution film by luminous organic material, macromolecular material and solvent composition, and the negative electrode of described luminescence chip is connected two lead-in wires respectively with anode.
2. light-emitting diode according to claim 1 is characterized in that: described luminescence chip is ultraviolet light, blueness or green emitting chip; The luminescent material of described luminous organic material for excited by ultraviolet light, blue light or green glow.
3. light-emitting diode according to claim 2 is characterized in that: the described luminescent material that excited by ultraviolet light, blue light or green glow is organic compound or organometallic complex.
4. according to the arbitrary described light-emitting diode of claim 1-3, it is characterized in that: in the described solid solution film by luminous organic material, macromolecular material and solvent composition, described macromolecular material is any one or the arbitrarily several mixture that mixes with arbitrary proportion in polymethyl methacrylate, polystyrene, polyacrylic acid, polyvinyl chloride acetate, polyacrylonitrile, polyethylene, polymethylacrylic acid-2-hydroxyl ethyl ester, polyacrylate, polymethyl acrylate or the polymethacrylonitrile; Described solvent is any one or the arbitrarily several mixture that mixes with arbitrary proportion in chloroform, ethyl acetate or the oxolane.
5. according to the arbitrary described light-emitting diode of claim 1-4, it is characterized in that: described solid solution film by luminous organic material, macromolecular material and solvent composition is prepared as follows and obtains:
Is to join in the described solvent in 1000: 1～500: 1 described macromolecular material and described luminous organic material according to mass ratio, and mixing obtains described solid solution film by luminous organic material, macromolecular material and solvent composition.
6. method of making the described light-emitting diode of claim 1, be that luminescence chip is placed on the LED support, after encapsulating described LED support with transparent outer cover, the solid solution film evenly is coated in the outer surface of described light-emitting diode, and respectively be connected a lead-in wire to described light-emitting diode by the negative electrode of described luminescence chip and anode, obtain described light-emitting diode;
Wherein, described solid solution film is by luminous organic material, macromolecular material and solvent composition.
7. method according to claim 6 is characterized in that: described luminescence chip is ultraviolet, blueness or green emitting chip; The luminescent material of described luminous organic material for excited by ultraviolet light, blue light or green glow.
8. method according to claim 7 is characterized in that: the described luminescent material that excited by ultraviolet light, blue light or green glow is organic compound or organometallic complex.
9. according to the arbitrary described method of claim 6-8, it is characterized in that: described macromolecular material is any one or the arbitrarily several mixture that mixes with arbitrary proportion in polymethyl methacrylate, polystyrene, polyacrylic acid, polyvinyl chloride acetate, polyacrylonitrile, polyethylene, polymethylacrylic acid-2-hydroxyl ethyl ester, polyacrylate, polymethyl acrylate or the polymethacrylonitrile; Described solvent is any one or the arbitrarily several mixture that mixes with arbitrary proportion in chloroform, ethyl acetate or the oxolane.
10. according to the arbitrary described method of claim 6-9, it is characterized in that: described solid solution film is prepared as follows and obtains:
Is to join mixing in the described solvent in 1000: 1～500: 1 with macromolecular material and luminous organic material according to mass ratio, obtains described solid solution film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100830798A CN101877376B (en) | 2009-04-28 | 2009-04-28 | Organic luminescent material-clad light-emitting diode and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100830798A CN101877376B (en) | 2009-04-28 | 2009-04-28 | Organic luminescent material-clad light-emitting diode and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101877376A true CN101877376A (en) | 2010-11-03 |
| CN101877376B CN101877376B (en) | 2011-08-03 |
Family
ID=43019879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100830798A Expired - Fee Related CN101877376B (en) | 2009-04-28 | 2009-04-28 | Organic luminescent material-clad light-emitting diode and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101877376B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2459814C1 (en) * | 2011-02-15 | 2012-08-27 | Учреждение Российской академии наук Институт высокомолекулярных соединений РАН | Luminescent azomethines of benzothiazole family |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2879217Y (en) * | 2006-04-18 | 2007-03-14 | 杭州照相机械研究所 | Irradiated lighting optical lens |
-
2009
- 2009-04-28 CN CN2009100830798A patent/CN101877376B/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2459814C1 (en) * | 2011-02-15 | 2012-08-27 | Учреждение Российской академии наук Институт высокомолекулярных соединений РАН | Luminescent azomethines of benzothiazole family |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101877376B (en) | 2011-08-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Su et al. | Recent progress in quantum dot based white light-emitting devices | |
| CN103779346B (en) | Near ultraviolet or ultraviolet excited LED light-emitting device | |
| Liu et al. | CaAlSiN 3: Eu 2+/Lu 3 Al 5 O 12: Ce 3+ phosphor-in-glass film with high luminous efficiency and CRI for laser diode lighting | |
| CN204204899U (en) | A kind of high-color rendering white-light exempts from packaged LED | |
| CN101123834B (en) | A LED manufacturing method | |
| CN101704988A (en) | Method for preparing fluorescent powder colloid | |
| CN101572262A (en) | Wide-spectrum white-light LED | |
| CN201209828Y (en) | Wide spectrum white light LED | |
| CN207009474U (en) | A kind of quantum dot LED structure of multilayer encapsulation | |
| CN101877376B (en) | Organic luminescent material-clad light-emitting diode and manufacturing method thereof | |
| CN108110123A (en) | A kind of high-performance quantum dot point white light LEDs and preparation method thereof | |
| CN101894832A (en) | Light-emitting diode (LED) structure for generating white light | |
| CN103151434A (en) | Method for improving distribution uniformity of LED (Light Emitting Diode) encapsulated fluorescent powder | |
| CN102916005A (en) | High-color-rendering LED light source based on green chip compensation | |
| CN104993035A (en) | Warm white light LED luminescent apparatus | |
| CN205211789U (en) | White light LED device based on no cadmium quantum dot phosphor powder | |
| CN201331013Y (en) | Novel low-cost green LED | |
| CN104592988B (en) | The preparation method of a kind of fluorescent material for LED component | |
| CN109768151B (en) | Multi-color LED for illumination and display and preparation method thereof | |
| CN203787466U (en) | LED (light emitting diode) packaging structure | |
| CN206040693U (en) | Blue light emitting diode wafer white light packaging hardware | |
| CN217153855U (en) | Novel RGB mixed light color-mixing light-emitting unit and light-emitting device composed of same | |
| CN103560182A (en) | Method for manufacturing GaN-substrate low-color-temperature high-color-rendering white light LED | |
| CN206349391U (en) | Exempt from encapsulation multiaspect and take light white LED lamp grain | |
| CN202749411U (en) | White light LED |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110803 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |