CN202662673U - White light light-emitting diode (LED) structure capable of reducing color temperature drifting - Google Patents
White light light-emitting diode (LED) structure capable of reducing color temperature drifting Download PDFInfo
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- CN202662673U CN202662673U CN 201220381236 CN201220381236U CN202662673U CN 202662673 U CN202662673 U CN 202662673U CN 201220381236 CN201220381236 CN 201220381236 CN 201220381236 U CN201220381236 U CN 201220381236U CN 202662673 U CN202662673 U CN 202662673U
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Abstract
The utility model provides a white light light-emitting diode (LED) structure capable of reducing color temperature drifting. The white light LED structure comprises a base and a reflection cup arranged on the base, wherein a piece of cover glass is arranged on the reflection cup, and a silica gel transparent plate is arranged on the cover glass. The silica gel transparent plate not directly contacting an LED chip during packaging of the LED chip is arranged on the cover glass so that color temperature drifting and lighting effect reducing caused by light-transmitting performance variation of the silica gel transparent plate at high temperature are avoided. Compared with the prior art, the white light LED structure has the advantages of being simple in structure, easy to manufacture and capable of effectively reducing color temperature drifting of packaged LEDs.
Description
Technical field
The utility model relates to white-light LED structure, and what be specifically related to is a kind of white-light LED structure that reduces the colour temperature drift.
Background technology
Along with the appearance of red, blue, green ultra-high brightness LED and white light LEDs, make the application of LED from indicator light, signal lamp, display screen to Landscape Lighting, be extended to now white-light illuminating.From then on LED has entered the new world of moving towards outdoor utility from indoor application.Nowadays White-light LED illumination has moved towards practical, industrialization, and its light efficiency surpasses traditional incandescent lamp, the light source of fluorescent lamp, fully demonstrates the characteristic of energy-saving and environmental protection.
White light LEDs is different from monochromatic light LED, and except power, it has also had more this parameter of colour temperature, and colour temperature refers to light wave under different energy, the change color that human eyes are experienced.Colour temperature is one of important indicator of white light LEDs look parameter, and it is related to the shown color characteristics of LED lighting product.
The LED production technology of main flow is spread yellow fluorescent material for the led chip in blueness is coated with in the market, thereby be synthesized into white with blue with yellow, carry out in the process that fluorescent material smears because the precision of equipment is different at sealed in unit, the fluorescent material of smearing in the same a collection of product that produces just has many and few different, it is then partially yellow that thereby fluorescent material is smeared many LED, fluorescent material is smeared partially blue at least, thereby produced from the LED colour temperature gear of the different brackets of 2000K to 10 K more than ten thousand, this bias phenomenon is called LED colour temperature drift phenomenon.Reduce at present packaged LED colour temperature drift phenomenon, controlling its good consistency is that numerous LED encapsulate the direction that enterprise makes joint efforts.
The utility model content
The purpose of this utility model is to provide a kind of white-light LED structure that reduces the colour temperature drift, what are different because smearing fluorescent material in the present packaging process of white LED to solve, the luminous partially yellow or partially blue problem of white light LEDs occurs, cause white light LEDs the situation of colour temperature drift to occur.
The purpose of this utility model is achieved through the following technical solutions.
A kind of white-light LED structure that reduces the colour temperature drift, comprise base (1) and be arranged on reflector (10) on the base (1), be provided with a cover glass (5) on the described reflector (10), be provided with a silica gel transparent panel (6) on this cover glass (5).
The bottom of wherein said reflector (10) is provided with a pad (2), is welded with led chip (8) on this pad (2).
Wherein said base (1) both sides also are provided with the first electrode (3) and the second electrode (4), described the first electrode (3) is connected with the top of led chip (8) by the first gold thread (7), and the second electrode (4) is connected with pad (2) by the second gold thread (9).
The white-light LED structure of the reduction colour temperature drift that the utility model provides, by be provided with a silica gel transparent panel at cover glass, owing to directly do not contact when this silica gel transparent panel does not encapsulate with led chip, avoid the light transmission variation that occurs because of silica gel transparent panel under the high-temperature condition, and caused the colour temperature drift that occurs and the problem of light efficiency reduction.Compared with prior art, the utlity model has phenomenon simple in structure, that realize easily, can effectively reduce the drift of packaged LED colour temperature.
Description of drawings
Fig. 1 is the white-light LED structure schematic diagram that the utility model reduces the colour temperature drift.
Identifier declaration among the figure: base 1, pad 2, the first electrode 3, the second electrode 4, cover glass 5, silica gel transparent panel 6, the first gold thread 7, led chip 8, the second gold thread 9, reflector 10.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
See also shown in Figure 1ly, Fig. 1 is the white-light LED structure schematic diagram that the utility model reduces the colour temperature drift.The utility model provides a kind of white-light LED structure that reduces the colour temperature drift, what be mainly used in solving in the present LED encapsulation process because smearing fluorescent material differences, the luminous partially yellow or partially blue problem of white light LEDs occurs easily, and then cause white light LEDs the situation of colour temperature drift to occur.
Wherein the white-light LED structure of the utility model reduction colour temperature drift mainly includes base 1 and reflector 10, described reflector 10 is installed on the base 1, and base 1 central upper portion is provided with pad 2, this pad 2 is the corresponding bottom that is positioned at reflector 10 also, be welded with led chip 8 on the described pad 2, these led chip 8 tops are connected with the first gold thread 7, and the bottom then is connected with the second gold thread 9 by pad 2.
Also be provided with the first electrode 3 and the second electrode 4 in the both sides, top of base 1, described the first electrode 3 is connected with the first gold thread 7, and the second electrode 4 is connected with the second gold thread 9.
Top at reflector 10 also is provided with cover glass 5, is provided with silica gel transparent panel 6 on the described cover glass 5.Wherein the silica gel transparent panel 6 here is to be pressed into tabularly according to mass ratio 1:10 configuration by fluorescent material and silica gel, then is placed in the insulating boxs of 165 degree high-temperature baking and makes in 5 minutes.Because high temperature is little on fluorescent material colour temperature drift impact, and the principal element that causes colour temperature to be drifted about is the colloid of fluorescent glue, be silica gel, because the obvious variation of at high temperature light transmission meeting of silica gel, and epoxy resin is also larger than the colour temperature drift of silica gel, therefore the epoxy resin that adopts of packaging LED chips then can't use in the past, especially in the larger large power white light LED chip package process of heating, the silica gel transparent panel that the utility model adopts has been avoided direct contact the with the led chip encapsulation, the impact of colloid on the colour temperature drift effectively weakened, reduce the phenomenon of LED colour temperature drift, improved light efficiency.
The above only is preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of within spirit of the present utility model and principle, doing, be equal to and replace and improvement etc., all should be included within the protection range of the present utility model.
Claims (3)
1. one kind is reduced the white-light LED structure that colour temperature is drifted about, comprise base (1) and be arranged on reflector (10) on the base (1), it is characterized in that being provided with a cover glass (5) on the described reflector (10), be provided with a silica gel transparent panel (6) on this cover glass (5).
2. the white-light LED structure of reduction colour temperature drift according to claim 1 is characterized in that the bottom of described reflector (10) is provided with a pad (2), is welded with led chip (8) on this pad (2).
3. the white-light LED structure of reduction colour temperature according to claim 2 drift, it is characterized in that described base (1) both sides also are provided with the first electrode (3) and the second electrode (4), described the first electrode (3) is connected with the top of led chip (8) by the first gold thread (7), and the second electrode (4) is connected with pad (2) by the second gold thread (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220381236 CN202662673U (en) | 2012-08-02 | 2012-08-02 | White light light-emitting diode (LED) structure capable of reducing color temperature drifting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220381236 CN202662673U (en) | 2012-08-02 | 2012-08-02 | White light light-emitting diode (LED) structure capable of reducing color temperature drifting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202662673U true CN202662673U (en) | 2013-01-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220381236 Expired - Fee Related CN202662673U (en) | 2012-08-02 | 2012-08-02 | White light light-emitting diode (LED) structure capable of reducing color temperature drifting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202662673U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10650782B2 (en) | 2017-06-19 | 2020-05-12 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Method and device for adjusting color temperature of screen, and electronic device |
-
2012
- 2012-08-02 CN CN 201220381236 patent/CN202662673U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10650782B2 (en) | 2017-06-19 | 2020-05-12 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Method and device for adjusting color temperature of screen, and electronic device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 518000 Guangdong, Baoan District, Songgang street Luotian community Xiangshan Avenue 334-1 building A, building A, building 202, building 3, building Patentee after: Shenzhen branch run Au Optronics Co Address before: 518000 Guangdong city of Shenzhen province Baoan District Xixiang Aviation Road Science and Technology Park Building 6 floor measurements Sokkia Patentee before: Ke Run Photoelectric Co., Ltd. of Shenzhen |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130109 Termination date: 20170802 |