CN201383502Y - White luminescent diode - Google Patents
White luminescent diode Download PDFInfo
- Publication number
- CN201383502Y CN201383502Y CN200920113320U CN200920113320U CN201383502Y CN 201383502 Y CN201383502 Y CN 201383502Y CN 200920113320 U CN200920113320 U CN 200920113320U CN 200920113320 U CN200920113320 U CN 200920113320U CN 201383502 Y CN201383502 Y CN 201383502Y
- Authority
- CN
- China
- Prior art keywords
- luminescent diode
- white light
- led chip
- fluorescent material
- white luminescent
- 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.)
- Expired - Lifetime
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Abstract
The utility model discloses a white luminescent diode, in particular to a white luminescent diode which is coated with phosphor powder on six surfaces of a chip. The white luminescent diode belongs to the technical field of LED lamps, and comprises a substrate provided with a cavity body, an LED chip is mounted in the cavity body of the substrate, and two electrodes of the LED chip are electrically connected with two gold threads used as electric conductors. The white luminescent diode is characterized in that phosphor powder is coated on six surfaces of the LED chip, and is packed into the cavity body with transparent insulation paste. The white luminescent diode can make up the problem that yellow light in the middle of the chip is not enough (the middle portion is a little blue), and simultaneously also improves the conversion efficiency of white light, the luminous efficiency of the coating mode of phosphor powder coated on six surfaces is 5%-15% higher than a known coating mode of phosphor powder coated on five surfaces, and yellow rings are obviously reduced or vanished.
Description
Technical field
The utility model relates to a kind of white light-emitting diode, refers in particular to the white light-emitting diode that a kind of chip six faces are coated with fluorescent material.
Background technology
Existing white light-emitting diode LED packaged type be with blue chip on chip and cover one deck yellow fluorescent powder all around, blue-light excited fluorescent material produces gold-tinted, gold-tinted and blue light are mixed into white light at last.The white light of Zhi Zuoing is owing to blue light above the chip is stronger in this way, and chip surface fluorescent material is less relatively, and the white light that mixes the back generation has middle indigo plant partially, yellow partially all around phenomenon.
The utility model content
The utility model has proposed a kind of simple, rational structure at deficiency of the prior art, and the white light-emitting diode that result of use is effectively improved.
The utility model is achieved by following technical proposals, a kind of white light-emitting diode, the matrix 6 that comprises an attached cavity 5, led chip 2 is installed in the cavity 5 of matrix 6, two electrodes of led chip 2 electrically connect with two money 3 as electric conductor, it is characterized in that: fluorescent material 1 is coated six of led chip 2, and in transparent insulation glue 4 is packaged in cavity 5.
As preferably, above-mentioned a kind of white light-emitting diode, described transparent insulation glue 4 its compositions are a kind of of epoxy resin, silica gel.
As preferably, above-mentioned a kind of white light-emitting diode, described fluorescent material 1, its composition are a kind of of YAG (day inferior fluorescent material), TAG (fluorescent material of Ou Silang), silicate fluorescent powder and Nitride phosphor.
As preferably, above-mentioned a kind of white light-emitting diode, described insulating cement 4 is 1 with the ratio of fluorescent material: 0.3-0.8.
The beneficial effects of the utility model are as follows: the white light-emitting diode that adopts this fabrication techniques, owing to be added with fluorescent material in the insulating cement, can produce a part of gold-tinted behind the fluorescent material in the blue-light excited bottom insulation, these gold-tinteds can remedy the problem of the middle gold-tinted of chip not enough (middle blue partially), also improve simultaneously the conversion efficiency of white light, the fluorescent material coating method of six bread glue is than the high 5%-15% of fluorescent material coating method light efficiency of known five bread glue, and yellow circle obviously reduces or disappearance.
Description of drawings
The fluorescent material coating schematic diagram of a kind of white light-emitting diode of Fig. 1.
Number in the figure: 1, fluorescent material 2, led chip 3, gold thread 4, transparent insulation glue, 5, cavity 6, matrix
Embodiment
As shown in Figure 1, a kind of white light-emitting diode of the present utility model, the matrix 6 that comprises an attached cavity 5, led chip 2 is installed in the cavity 5 of matrix 6, two electrodes of led chip 2 electrically connect with two money 3 as electric conductor, fluorescent material 1 is coated six of led chip 2, fluorescent material 1 can be selected a kind of of YAG (day inferior fluorescent material), TAG (fluorescent material of Ou Silang), silicate fluorescent powder and Nitride phosphor for use, and in transparent insulation glue 4 was packaged in cavity 5, transparent insulation glue 4 can be selected a kind of of epoxy resin or silica gel for use.
Packaged type of the present utility model is on white luminous two utmost points encapsulation basis of routine, add a certain proportion of fluorescent material 1 for 4 li at transparent insulation glue, and insulating cement and fluorescent material is used for solid crystalline substance by 1: 0.3 mixed after evenly, carry out normal white light-emitting diode encapsulation flow process then, the product finished of the encapsulation product of the conventional encapsulation of beam intensity ratio (transparent insulation glue does not add fluorescent material) after tested is high by 8%, and yellow circle has and alleviates.
Embodiment two
Structure is with embodiment 1, and difference is that insulating cement and fluorescent material are used for solid crystalline substance by 1: 0.5 mixed after evenly, carry out normal white light-emitting diode then and encapsulate flow process.
Embodiment three
Structure is with embodiment 1, and difference is that insulating cement and fluorescent material are used for solid crystalline substance by 1: 0.8 mixed after evenly, carry out normal white light-emitting diode then and encapsulate flow process.
Claims (3)
1, a kind of white light-emitting diode, the matrix (6) that comprises an attached cavity (5), led chip (2) is installed in the cavity (5) of matrix (6), two electrodes of led chip (2) with electrically connect as two money (3) of electric conductor, it is characterized in that: fluorescent material (1) is coated six of led chip (2), and in transparent insulation glue (4) is packaged in cavity (5).
2, a kind of white light-emitting diode as claimed in claim 1 is characterized in that: its composition of described transparent insulation glue (4) is a kind of of epoxy resin, silica gel.
3, a kind of white light-emitting diode as claimed in claim 1 is characterized in that: described fluorescent material (1) is selected from a kind of of YAG, TAG, silicate fluorescent powder and Nitride phosphor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920113320U CN201383502Y (en) | 2009-01-21 | 2009-01-21 | White luminescent diode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920113320U CN201383502Y (en) | 2009-01-21 | 2009-01-21 | White luminescent diode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201383502Y true CN201383502Y (en) | 2010-01-13 |
Family
ID=41526973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920113320U Expired - Lifetime CN201383502Y (en) | 2009-01-21 | 2009-01-21 | White luminescent diode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201383502Y (en) |
-
2009
- 2009-01-21 CN CN200920113320U patent/CN201383502Y/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100113 |