CN104282672A - Color temperature adjustable type light-emitting diode packaging structure - Google Patents
Color temperature adjustable type light-emitting diode packaging structure Download PDFInfo
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- CN104282672A CN104282672A CN201310283484.0A CN201310283484A CN104282672A CN 104282672 A CN104282672 A CN 104282672A CN 201310283484 A CN201310283484 A CN 201310283484A CN 104282672 A CN104282672 A CN 104282672A
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Abstract
The invention relates to a color temperature adjustable type light-emitting diode packaging structure. The color temperature adjustable type light-emitting diode packaging structure comprises a base, a fluorescent powder layer, a first power supply and a second power supply, wherein at least one blue light-emitting diode, at least one red light-emitting diode and at least one green light-emitting diode are arranged on the base; according to the requirements of users, first current is input into the blue light-emitting diode by the first power supply, and second current is input into the red light-emitting diode and the green light-emitting diode by the second power supply, or three kinds of current are input into the blue light-emitting diode, the red light-emitting diode and the green light-emitting diode respectively, so that the color temperature of the light-emitting diode packaging structure is adjusted. The color temperature adjustable type light-emitting diode packaging structure can be widely applied to the industrial fields and is high in practicability and extremely convenient to use.
Description
Technical field
The present invention is a kind of package structure for LED, especially has the package structure for LED of the adjustable color temperature of adjustment colour temperature function.
Background technology
The whole world is in recent years because energy supply pressure promotes gradually, and the CO2 emission that the consumption energy brings is very serious on the impact of greenhouse effect, therefore sharp light-emitting diode component is in recent years got most of the attention.In addition, compared to conventional bulb, light-emitting diode has absolute advantage, such as volume is little, life-span length, low-voltage/current drives, not easily break, not containing the characteristic such as mercury (not having pollution problem) and luminous efficiency good (power saving), therefore light-emitting diode in daily life with the application in industry widely, as the backlight module of various display lighting, display screen, automobile brake lamp, outdoor information billboard or traffic sign etc., be subject to very large expectation using on the role for lighting source.
Colour temperature (unit: absolute temperature K), the colour temperature of a light source is defined as having identical photochromic " standard blackbody (black body radiator) " kelvin rating own with it, and this temperature Planckian locus on a chromaticity diagram can find its corresponding points.The temperature of standard blackbody is higher, and in its light spectral given off, blue component is more, and red component is also just relative fewer.Steep to send the photochromic common white thermolamp for warm white, its colour temperature is 2700K, and the colour temperature of daylight look fluorescent lamp is 6000K.In general, colour temperature is low, with orange, can represent the light with warmness; Along with colour temperature uprises, just become as solar noon sun is generally the light being with adularescent; Then become when uprising again with blue, salubrious light.
The existing lighting device using light-emitting diode as light emitting source at present, the light source mostly only with single illumination colour temperature exports, in other words, the illumination colour temperature of light emitting source will depend on the light-emitting diode of arranging in pairs or groups on lighting device, but, namely the light-emitting diode of arranging in pairs or groups on lighting device has normally been added into the fluorescent material determining that the light source which kind of illumination colour temperature light-emitting diode has exports before having manufactured, therefore, except non-user changes the light-emitting diode on lighting device of arranging in pairs or groups, otherwise user can not regulate and control the illumination colour temperature of light emitting source in the process using lighting device, thus user's inconvenience is caused, cannot in due course between or suitably place to adjust suitable light.
But, in order to improve above-mentioned situation, the existing square optical diode light fixture that can adjust colour temperature, a blue LED is comprised in this light fixture, one red light emitting diodes and a green LED, and those light-emitting diodes are produced blue light by the power drives of correspondence respectively, ruddiness and green glow, so just white light can be produced, but this light fixture is because of blue LED, this red light emitting diodes and this green LED are arranged respectively, that is be distinctly single encapsulating structure, and there is certain distance, therefore direction is photochromic differs, therefore not easily equal white light is mixed out, cause user's eyes uncomfortable.
Such as No. 200905854th, TaiWan, China publication number, its provide a kind of can adjust correlated colour temperature and can realize mood illumination white light-emitting diode (LED) device.This White LED systems comprises one in order to be installed in the packaging body of light source module; One is installed in the first light source module in packaging body, and it has the first LED chip and one first fluorophor of one or more, and can send the white light with the first correlated colour temperature (CCT); One is installed in the secondary light source module in packaging body, and it has the second LED chip and one second fluorophor of one or more, and can send the white light with the second correlated colour temperature; And a current control unit, in order to change the electric current being supplied in first and second LED chip one of them, to adjust first and second correlated colour temperature.So, say as aforementioned, because this first light source module and this secondary light source module have certain distance, and direction is photochromic differs, and therefore not easily mixes out equal white light, and also reduces the color rendering of light.
Process problems is improved, so there is the necessity being broken through, solve because prior art there is no method.Therefore, how to promote convenience, practicality and economic benefit, this key project should made great efforts solution for industry, overcome.
Edge this, the present inventor lacks in view of the problem of the package structure for LED of known adjustable color temperature and structural design does not attain the desirable fact, namely inventor sets about researching and developing its solution, wish to develop a kind of package structure for LED having more the adjustable color temperature of convenience, practicality and high economic benefit, with service society masses and the development promoting this industry, satisfy the design when many and have generation of the present invention.
Summary of the invention
Main purpose of the present invention, be the package structure for LED providing a kind of adjustable color temperature, it has high convenience, and user can adjust suitable colour temperature, to meet demand.
Secondary objective of the present invention, be the package structure for LED providing a kind of adjustable color temperature, it has high mixed light, and the light that light-emitting diode can be made to send is comparatively even.
For reaching each object and effect of above-mentioned denotion, the present invention discloses a kind of package structure for LED of adjustable color temperature, it comprises: a pedestal, a phosphor powder layer, one first supply power supply and one second supply power supply, this pedestal comprise at least one blue LED, at least one red light emitting diodes and at least one green LED; This phosphor powder layer is arranged at the top of this blue LED, this red light emitting diodes and this green LED; This first supply power supply is electrically connected this blue LED; This second supply power supply is electrically connected this red light emitting diodes and this green LED; Wherein, utilize this first supply power supply to input the first electric current to this blue LED, second supply power supply with this and input the second electric current to this red light emitting diodes and this green LED, to adjust the colour temperature of this package structure for LED.
Moreover the power supply of this blue LED, this red light emitting diodes and this green LED can be independently-powered, to adjust the colour temperature of this package structure for LED.
The beneficial effect implementing the present invention's generation is: the package structure for LED of adjustable color temperature of the present invention is according to the demand of user, different supply mains input current can be utilized to the light-emitting diode of different colours, to adjust the colour temperature of this package structure for LED, the present invention has industry applications and practicality widely, and then has splendid convenience.
Accompanying drawing explanation
Fig. 1: it is the cutaway view of a preferred embodiment of the present invention;
Fig. 2 A: it is the calcspar of a preferred embodiment of the present invention;
Fig. 2 B: it is the calcspar of another preferred embodiment of the present invention;
Fig. 3: it is the cutaway view of another preferred embodiment of the present invention;
Fig. 4 A: it is the calcspar of another preferred embodiment of the present invention;
Fig. 4 B: it is the calcspar of another preferred embodiment of the present invention;
Fig. 5: it is the experimental data figure of another preferred embodiment of the present invention; And
Fig. 6: it is the calcspar of another preferred embodiment of the present invention.
[figure number is to as directed]
1 package structure for LED
10 pedestals
102 circuit boards
12 blue LEDs
14 red light emitting diodes
16 green LEDs
18 storage tanks
182 bottom lands
184 reflector
20 phosphor powder layers
22 fluorescent material
24 transparent colloids
30 first supply power supplys
40 second supply power supplys
45 the 3rd supply power supplys
50 controllers
I1 first electric current
I2 second electric current
I3 the 3rd electric current
V1 first voltage
V2 second voltage
Embodiment
In order to make architectural feature of the present invention and effect of reaching have a better understanding and awareness, spy's preferred embodiment and coordinate detailed description, is described as follows:
In the package structure for LED of those adjustable color temperature of prior art, mostly cannot adjust its colour temperature, the light-emitting diode of residual energy adjustment colour temperature, its DL photosensitiveness is not good, easily cause user's eyes uncomfortable, therefore the present invention is directed to those disappearances, design the package structure for LED of this adjustable color temperature to reach the target of high convenience and tool height mixed light.
First, please refer to Fig. 1 and Fig. 2 A, B, is cutaway view and the calcspar of a preferred embodiment of the present invention.As shown in the figure, a package structure for LED 1 of the present invention, it comprises pedestal 10, phosphor powder layer 20, a 1 first supply power supply 30 and one second and supplies power supply 40, and this pedestal 10 comprises at least one blue LED 12, at least one red light emitting diodes 14 and at least one green LED 16.
Wherein, this phosphor powder layer 20 is arranged at the top of this blue LED 12, this red light emitting diodes 14 and this green LED 16; This first supply power supply 30 is electrically connected this blue LED 12, to supply this blue LED 12 energy; This second supply power supply 40 is electrically connected this red light emitting diodes 14 and this green LED 16, to supply this red light emitting diodes 14 and this green LED 16 energy; Wherein, second supply power supply 40 for induced current to this red light emitting diodes 14 and this green LED 16 for induced current to this blue-light-emitting two pole 12 and this through this first supply power supply 30, recycle this first supply power supply 30 second to supply power supply 40 from this and input different electric current, to adjust the brightness of this blue LED 12, this red light emitting diodes 14 and this green LED 16, and then adjust the colour temperature of this package structure for LED 1.Wherein, as shown in Figure 2 A, this red light emitting diodes 14 is parallel with one another with this green LED 16, or this red light emitting diodes 14 is connected mutually with this green LED 16 as shown in Figure 2 B, so to facilitate service voltage and electric current simultaneously, to reach the object controlling colour temperature.
Generally speaking, when only using this blue LED 12 to send blue light, this phosphor powder layer 20 can absorb this blue light, converts one second coloured light to, finally with blue light after produce one the 3rd coloured light, and this 3rd coloured light is generally a white light.When starting the electric current increasing this red light emitting diodes 14 and this green LED 16, this red light emitting diodes 14 can start to increase with the brightness of this green LED 16.But be subject to the impact of ruddiness and green glow, the colour temperature of this package structure for LED 1 starts to reduce, and so can utilize and control the object that electric current reaches control colour temperature.When user needs the light of white partially (colour temperature is higher), can reduce or even close the input current of this red light emitting diodes 14 and this green LED 16; When user needs partially yellow light (colour temperature is lower), the input current of this red light emitting diodes 14 or this green LED 16 can be improved, so a simple control method can be completed.In addition, due to this blue LED 12 generally commonly used, this red light emitting diodes 14 and this green LED 16 are for be electrically connected identical voltage, thus the light-emitting diode lower compared with threshold voltage is allowed easily to be subject to the damage of too high voltages, or the light-emitting diode causing threshold voltage higher cannot conducting and luminous, therefore the present invention utilizes two power supplys be supplied to blue LED (the first voltage V1) respectively and be supplied to red and green LED (the second voltage V2), when so avoiding supplying same voltage, cause and cannot start or situation that light-emitting diode burns.
So, the light-emitting diode of known techniques is as the lighting device of light emitting source, the light source that great majority only have single illumination colour temperature exports, that is each condition of this lighting device when the illumination colour temperature of light emitting source has depended on manufacture, therefore, except non-user changes lighting device, otherwise user cannot regulate and control the illumination colour temperature of light emitting source in the process using lighting device.But, existing a kind of LED lamp controlling colour temperature, this light fixture has the light-emitting diode of separately encapsulation, its light-emitting diode being different colours is packaged into the encapsulating structure of various monochrome respectively, through controlling the encapsulating structure of those single color LEDs to reach mixed light and to control the object of colour temperature, because having a spacing respectively between those light emitting diode constructions, that is various single color LED is provided separately, therefore its light mixing effect is not good.And the present invention solves above-mentioned disappearance, this blue LED 12 of the present invention, this red light emitting diodes 14 are positioned at same encapsulating structure with this green LED 16, in other words, all in same phosphor powder layer 20, therefore its DL photosensitiveness is better, institute's light that sends is comparatively even, reduces user's eyes because of good the do not caused burden of mixed light.
In addition, the package structure for LED of this adjustable color temperature of the present invention, this phosphor powder layer 20 comprises many fluorescent material 22 and a transparent colloid 24, and those fluorescent material 22 mix and form this phosphor powder layer 20 in this transparent colloid 24.Can the first coloured light of sending of interior light emitting diodes through those fluorescent material 22, and then convert the second coloured light to, and those fluorescent material 52 of the present embodiment can be the fluorescent material of multiple yellow fluorescent powder or other color.
Referring to Fig. 3, is the cutaway view of another preferred embodiment of the present invention.As shown in the figure, explain the thin portion structure of this package structure for LED 1 more further, the one side of this pedestal 10 comprises storage tank 18 and a circuit board 102, a bottom land 182 of this storage tank 18 is located at by this circuit board 102, and this blue LED 12, this red light emitting diodes 14 are located on this circuit board 102, to facilitate carrying with this green LED 16 again.In addition, the sidewall of storage tank 18 more comprises a reflector 184, so can increase the volume reflection of the light of this package structure for LED 1, to increase brightness.
Referring to Fig. 4 A, B and Fig. 5, is block flow diagram and the experimental data figure of another preferred embodiment of the present invention.As shown in the figure, the package structure for LED of an adjustable color temperature of the present invention, it more comprises a controller 50, this controller 50 is electrically connected this first supply power supply 30 and second supplies power supply 40 with this, and this first supply power supply 30 is electrically connected this blue LED 12, and this second supply power supply 40 is electrically connected this red light emitting diodes 14 and this green LED 16, so this controller 50 through control this first supply power supply 30 with this second supply power supply 40 supply induced current, and then control this blue LED 12, the brightness of this red light emitting diodes 14 and this green LED 16.
As shown in Figure 5, for example, the present embodiment does an explanation to adjust this red light emitting diodes 14 with the electric current of this green LED 16, the electric current of this blue LED 12 can also be adjusted to adjust colour temperature, wherein namely this red light emitting diodes 14 represents R+G@5mA to R+G@20mA with the electric current of this green LED 16, and namely the electric current of this blue LED 12 represents B@20mA.When the electric current of this blue LED 12 is fixed on 20mA, this red light emitting diodes 14 starts to be adjusted to 25mA from 0mA with the electric current of this green LED 16, and this colour temperature can be down to 3200K from about 6020K, so, only need adjust the electric current that this controller 50 supplies this red light emitting diodes 14 and this green LED 16, just can change the brightness of this red light emitting diodes 14 and this green LED 16, and its issued light can affect this blue LED 12 issued light, therefore the adjustment of colour temperature can be obtained.Wherein, as shown in Figure 4 A, this red light emitting diodes 14 is parallel with one another with this green LED 16, or this red light emitting diodes 14 is mutual series connection with this green LED 16 as shown in Figure 4 B, so to facilitate service voltage and electric current simultaneously, to reach the object controlling colour temperature.
Referring to Fig. 6, is the block flow diagram of another preferred embodiment of the present invention.As shown in the figure, the package structure for LED of an adjustable color temperature of the present invention, it more comprises a controller 50, this controller 50 is electrically connected this first supply power supply 30, this the second supply power supply 40 and one the 3rd supplies a power supply 45, and this first supply power supply 30 is electrically connected this blue LED 12, and this second supply power supply 40 is electrically connected this red light emitting diodes 14, 3rd supply power supply 45 is electrically connected this green LED 16, so this controller 50 is through this first supply power supply 30 of control, this the second supply power supply 40 and the 3rd supplies supply three kinds of electric currents of power supply 45, i.e. the first electric current I 1, first electric current I 2 and the first electric current I 3 input to this blue LED 12 respectively, this red light emitting diodes 14 and this green LED 16, and then control this blue LED 12, the brightness of this red light emitting diodes 14 and this green LED 16, and then adjustment colour temperature.
In addition, this the first supply power supply 30 can connect the blue LED in different encapsulating structure, and this second supply power supply 40 can connect red light emitting diodes in different encapsulating structure and green LED, organize control to reach, formation one can control the LED lamp of colour temperature more.But the present invention is positioned at mixed light in each encapsulating structure, solves the known mixed light utilizing the package structure for LED controlling different colours to cause not good, and then bring user more convenient and more comfortable light-emitting diode light.
Above is only preferred embodiment of the present invention, not be used for limiting scope of the invention process, all equalizations of doing according to shape, structure, feature and the spirit described in the claims in the present invention scope change and modify, and all should be included in right of the present invention.
Claims (10)
1. a package structure for LED for adjustable color temperature, is characterized in that, it comprises:
One pedestal, this pedestal comprises at least one blue LED, at least one red light emitting diodes and at least one green LED;
One phosphor powder layer, it is arranged at the top of this blue LED, this red light emitting diodes and this green LED;
One first supply power supply, it is electrically connected this blue LED; And
One second supply power supply, it is electrically connected this red light emitting diodes and this green LED;
Wherein, utilize this first supply power supply to input the first electric current to this blue LED, second supply power supply with this and input the second electric current to this red light emitting diodes and this green LED, to adjust colour temperature.
2. the package structure for LED of adjustable color temperature as claimed in claim 1, is characterized in that, wherein
This phosphor powder layer comprises many fluorescent material and a transparent colloid, and those fluorescent material mix and form this phosphor powder layer in this transparent colloid.
3. the package structure for LED of adjustable color temperature as claimed in claim 1, is characterized in that, wherein
The one side of this pedestal comprises a storage tank.
4. the package structure for LED of adjustable color temperature as claimed in claim 3, is characterized in that, wherein
The sidewall of this storage tank more comprises a reflector.
5. the package structure for LED of adjustable color temperature as claimed in claim 3, is characterized in that, wherein
This pedestal comprises a circuit board, and a bottom land of this storage tank is located at by this circuit board.
6. the package structure for LED of adjustable color temperature as claimed in claim 5, is characterized in that, wherein
This blue LED, this red light emitting diodes and this green LED are arranged on this circuit board.
7. the package structure for LED of adjustable color temperature as claimed in claim 1, is characterized in that, wherein
This red light emitting diodes and this green LED are parallel with one another or mutually connect.
8. the package structure for LED of adjustable color temperature as claimed in claim 1, is characterized in that, more comprise a controller, and this controller telecommunications connects this first supply power supply and this second supplies power supply.
9. the package structure for LED of adjustable color temperature as claimed in claim 1, is characterized in that, wherein
This first supply power supply second is supplied power supply from this and is more provided different voltage to this blue LED, this red light emitting diodes and this green LED.
10. a package structure for LED for adjustable color temperature, is characterized in that, it comprises:
One pedestal, this pedestal comprises at least one blue LED, at least one red light emitting diodes and at least one green LED;
One phosphor powder layer, it is arranged at the top of this blue LED, this red light emitting diodes and this green LED;
One first supply power supply, it is electrically connected this blue LED;
One second supply power supply, it is electrically connected this red light emitting diodes; And
One the 3rd supply power supply, it is electrically connected this green LED;
Wherein, this first supply power supply, this second supply power supply and the 3rd supply power supply is utilized to input different electric current to this blue LED, this red light emitting diodes and this green LED, to adjust colour temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310283484.0A CN104282672A (en) | 2013-07-03 | 2013-07-03 | Color temperature adjustable type light-emitting diode packaging structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310283484.0A CN104282672A (en) | 2013-07-03 | 2013-07-03 | Color temperature adjustable type light-emitting diode packaging structure |
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| CN201310283484.0A Pending CN104282672A (en) | 2013-07-03 | 2013-07-03 | Color temperature adjustable type light-emitting diode packaging structure |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105864683A (en) * | 2015-01-22 | 2016-08-17 | 青岛海信电器股份有限公司 | Light source assembly, backlight module and display device |
| CN108826220A (en) * | 2018-07-13 | 2018-11-16 | 华域视觉科技(上海)有限公司 | Vehicle light illumination component |
| CN111796686A (en) * | 2019-04-03 | 2020-10-20 | 致伸科技股份有限公司 | Input device |
| CN113251377A (en) * | 2020-02-11 | 2021-08-13 | 李梧 | Detachable multi-layer fluorescent powder layer microminiature LED light-emitting device and manufacturing method thereof |
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| CN113251377A (en) * | 2020-02-11 | 2021-08-13 | 李梧 | Detachable multi-layer fluorescent powder layer microminiature LED light-emitting device and manufacturing method thereof |
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