CN204696115U - A kind of three primary colors white LED light source - Google Patents
A kind of three primary colors white LED light source Download PDFInfo
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- CN204696115U CN204696115U CN201520236119.9U CN201520236119U CN204696115U CN 204696115 U CN204696115 U CN 204696115U CN 201520236119 U CN201520236119 U CN 201520236119U CN 204696115 U CN204696115 U CN 204696115U
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Abstract
The utility model provides a kind of three primary colors white LED light source, it comprises substrate, described substrate is electrically connected with some red LED chips and blue-light LED chip, there is green light luminescent material layer in the surface coverage of described blue-light LED chip, described red LED chip and blue-light LED chip are packaged with sealant layer.Three primary colors white LED light source of the present utility model, avoids the use of green LED chip in conventional light source, the colour temperature stability of light source is enhanced, also ensure that the adjustable color of high light efficiency and wide colour gamut simultaneously.
Description
Technical field
The utility model relates to LED field of luminescent technology, particularly relates to a kind of white LED light source of three primary colors.
Background technology
The scheme utilizing red, green, blue three kinds of blend of colors to obtain white light is one of three kinds of schemes realizing white light LEDs, and the method separately can control the luminous intensity of red, green, blue LED, reaches full-color color changeable effect (variable color-temperature).
But this technology is limited to the bottleneck of green light LED technology always, realizes green light LED at present and adopt InGaN system material, but the distortion of lattice of the GaN material due to high In ingredient, make fault in material far above the InGaN material of common blue-ray LED.This just causes green LED chip photoelectric conversion efficiency low, and heat is high, and light decay is obvious simultaneously.Simultaneously green LED chip varies with temperature the drift of its peak wavelength obviously, and this will cause the color temperature shift of three primary colors white light LEDs, thus needs the complicated electric current of control circuit to chip to compensate control realization colour temperature to stablize.Current OSRAM introduces the white chip of a coating fluorescent material in three primary colors white light LEDs, stablizes with the colour temperature realizing three primary colors white light LEDs, but has both added the technology difficulty of encapsulation like this, too increases the cost of white LED light source simultaneously.
Utility model content
The utility model is intended to the foregoing problems solving prior art, and provides a kind of light efficiency high, and colour temperature is stablized and controlled simple a kind of novel three primary colors white LED light source.
A kind of three primary colors white LED light source, it comprises substrate, described substrate is electrically connected with some red LED chips and blue-light LED chip, has green light luminescent material layer in the surface coverage of described blue-light LED chip, described red LED chip and blue-light LED chip are packaged with sealant layer.
Preferably, described red LED chip and blue-light LED chip are all electrically connected with substrate by gold thread.
Preferably, described green light luminescent material layer is made up of LuAG ceramic material, green glow glass material or green emitting phosphor.
Preferably, described substrate be of a size of (5 ~ 10) mm × (5 ~ 10) mm.
Preferably, described substrate is loose structure.
Compared with prior art, the utility model has following beneficial effect:
This three primary colors white LED light source, avoids the use of green LED chip in conventional light source, the colour temperature stability of light source is enhanced, also ensure that the adjustable color of high light efficiency and wide colour gamut simultaneously.
Accompanying drawing explanation
By reading the detailed description done non-limiting example with reference to the following drawings, other features, objects and advantages of the present utility model will become more obvious:
Fig. 1 is the structural representation of embodiment 1 in the utility model;
Fig. 2 is the structural representation of embodiment 2 in the utility model.
In figure: 1, substrate; 21, blue chip; 22, red light chips; 3, ceramic material layer; 4, layer of silica gel.
Embodiment
Below in conjunction with specific embodiment, the utility model is described in detail.Following examples will contribute to those skilled in the art and understand the utility model further, but not limit the utility model in any form.It should be pointed out that to those skilled in the art, without departing from the concept of the premise utility, some distortion and improvement can also be made.These all belong to protection range of the present utility model.
embodiment 1
The structure of a kind of three primary colors white LED light source of the present embodiment is as shown in Figure 1: on the ceramic substrate 1 of 5 ╳ 5mm, be fixed with three LEDs chips, be respectively the red light chips 22 that blue chip 21 that two peak wavelengths are 455nm and peak wavelength are 620nm, the size of blue chip 21 and red light chips 22 is all 1 ╳ 1mm.Application gold thread realizes the electrical connection between chip positive and negative electrode and substrate 1, at the LuAG ceramic material layer 3 that the peak wavelength of the surface coverage emission spectrum of a blue chip is 530nm, finally apply transparent silica gel three chips are sealed, form transparent silicon glue-line 4, complete the preparation of this three-primary color LED white light source.
embodiment 2
The structure of a kind of three primary colors white LED light source of the present embodiment is as shown in Figure 2: on the ceramic substrate 1 of 10 ╳ 10mm, fix 5 red LED chips 22 and 10 blue-light LED chips 21 respectively, form one 3 and the LED chip array of 5 strings, wherein the peak wavelength of red LED chip 22 is 620nm, the peak wavelength of blue-light LED chip 21 is 455nm, and the size of chip is all 1 ╳ 1mm.Application gold thread realizes the electrical connection between chip positive and negative electrode and electrode of substrate 5, the peak wavelength of the surface coverage emission spectrum of 5 blue chips 21 is the LuAG pottery 2 of 530nm wherein, finally apply transparent silica gel whole chip is sealed, complete the preparation of this three-primary color LED white light module.
embodiment 3
The ceramic substrate of 5 ╳ 5mm is fixed three LEDs chips, is respectively blue chip that two peak wavelengths are 455nm and a peak wavelength is the red light chips of 620nm, the size of chip is all 1 ╳ 1mm.Application gold thread realizes the electrical connection between chip positive and negative electrode and substrate, at the green glow glass material that the peak wavelength of the surface coverage emission spectrum of a blue chip is 530nm, finally apply transparent silica gel three chips are sealed, complete the preparation of this three-primary color LED white light source.Its structure is identical with embodiment 1, therefore does not repeat.
embodiment 4
The ceramic substrate of 5 ╳ 5mm is fixed three LEDs chips, is respectively blue chip that two peak wavelengths are 455nm and a peak wavelength is the red light chips of 620nm, the size of chip is all 1 ╳ 1mm.Application gold thread realizes the electrical connection between chip positive and negative electrode and substrate, be the green emitting phosphor of 525nm at the peak wavelength of the surface coverage emission spectrum of a blue chip, better chip surface is attached in order to make fluorescent material, simultaneously in order to ensure the consistency prepared, have employed fluorescent material powder injection process ripe in industry herein, finally apply transparent silica gel three chips are sealed, complete the preparation of this three-primary color LED white light source.Its structure is identical with embodiment 1, therefore does not repeat.
Above specific embodiment of the utility model is described.It is to be appreciated that the utility model is not limited to above-mentioned particular implementation, those skilled in the art can make various distortion or amendment within the scope of the claims, and this does not affect flesh and blood of the present utility model.
Claims (5)
1. a three primary colors white LED light source, is characterized in that, comprises substrate, and described substrate is electrically connected with some red LED chips and blue-light LED chip, and has green light luminescent material layer in the surface coverage of the described blue-light LED chip of part.
2. three primary colors white LED light source as claimed in claim 1, it is characterized in that, described red LED chip and blue-light LED chip are all electrically connected with substrate by gold thread.
3. three primary colors white LED light source as claimed in claim 1, it is characterized in that, described green light luminescent material layer is LuAG ceramic material layer, green glow glass material layer or green phosphor layer.
4. the three primary colors white LED light source as described in claim 1,2 or 3, is characterized in that, described substrate be of a size of (5 ~ 10) mm × (5 ~ 10) mm.
5. three primary colors white LED light source as claimed in claim 4, it is characterized in that, described substrate is loose structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520236119.9U CN204696115U (en) | 2015-04-17 | 2015-04-17 | A kind of three primary colors white LED light source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520236119.9U CN204696115U (en) | 2015-04-17 | 2015-04-17 | A kind of three primary colors white LED light source |
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| Publication Number | Publication Date |
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| CN204696115U true CN204696115U (en) | 2015-10-07 |
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| CN201520236119.9U Active CN204696115U (en) | 2015-04-17 | 2015-04-17 | A kind of three primary colors white LED light source |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106784249A (en) * | 2017-01-05 | 2017-05-31 | 永林电子有限公司 | A kind of implementation method for making lamp bead light extraction soft and controlling blue light red shift |
| CN107726056A (en) * | 2016-08-11 | 2018-02-23 | 广州市新晶瓷材料科技有限公司 | The preparation method of high colour gamut laser white light source |
| CN107919428A (en) * | 2016-10-10 | 2018-04-17 | 广州市新晶瓷材料科技有限公司 | A kind of green light device and its implementation |
-
2015
- 2015-04-17 CN CN201520236119.9U patent/CN204696115U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107726056A (en) * | 2016-08-11 | 2018-02-23 | 广州市新晶瓷材料科技有限公司 | The preparation method of high colour gamut laser white light source |
| CN107919428A (en) * | 2016-10-10 | 2018-04-17 | 广州市新晶瓷材料科技有限公司 | A kind of green light device and its implementation |
| CN106784249A (en) * | 2017-01-05 | 2017-05-31 | 永林电子有限公司 | A kind of implementation method for making lamp bead light extraction soft and controlling blue light red shift |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20181022 Address after: 100086 room 5A, Hing Fat mansion, 45 Zhongguancun Avenue, Haidian District, Beijing. Patentee after: Beijing Hui Yao Xingguang ceramic material technology Co.,Ltd. Address before: 242, Suzhou Industrial Park, Jiangsu, Suzhou Province, No. 215000, science and Technology Park, 1 Patentee before: SUZHOU INDUSTRIAL PARK JINGGUAN PORCELAIN MATERIAL TECHNOLOGY CO.,LTD. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220824 Address after: Room 702, Building 12, No. 2, Xingye Road, Songshan Lake Park, Dongguan City, Guangdong 523000 Patentee after: Zhongke Haoye (Dongguan) material technology Co.,Ltd. Address before: 100086 room 5A, Hing Fat mansion, 45 Zhongguancun Avenue, Haidian District, Beijing. Patentee before: Beijing Hui Yao Xingguang ceramic material technology Co.,Ltd. |
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| TR01 | Transfer of patent right |