CN2821871Y - Light source mother plate with LED - Google Patents
Light source mother plate with LED Download PDFInfo
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- CN2821871Y CN2821871Y CNU2005200111335U CN200520011133U CN2821871Y CN 2821871 Y CN2821871 Y CN 2821871Y CN U2005200111335 U CNU2005200111335 U CN U2005200111335U CN 200520011133 U CN200520011133 U CN 200520011133U CN 2821871 Y CN2821871 Y CN 2821871Y
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- light
- crystal grain
- emitting diode
- light source
- fluorescence coating
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Abstract
The utility model relates to a light source mould plate with luminous diodes, which comprises a circuit board and a fluorescent layer, wherein a plurality of white light luminous diodes are welded on the circuit board and each independent white light luminous diode at least comprises more than one blue light crystal grain and more than one red light crystal grain; the fluorescent layer is formed by uniformly mixing fluorescent powder and transparent adhesive and the fluorescent layer is glued and covered on the blue light crystal grain and the red light crystal grain. Because the fluorescent layer is used as a green light source, the green light crystal grain can be saved.
Description
Technical field
The utility model relates to a kind of light source template with light-emitting diode, light source crystal grain in the white light emitting diode on particularly a kind of light source template can save the light source template of the light-emitting diode of a green crystal grain, can reduce cost, reduce light and heat energy and electric energy.
Background technology
Traditional light source module has been widely used on the various light scanning apparatuss, as photocopier, facsimile machine, be used in the scanner on the computer and the back light of LCD TV screen ... wait on the equipment.
Typical example, as TaiWan, China patent announcement number No. 574822 " the light source module that is used for scanning means ", its light source template use is combined into single white light emitting diode by red, blue, green (R, B, G) three luminescent grains, white light emitting diode with plural number is welded on the circuit board one by one again, to be formed for the light source module in the scanner or the back light module of LCD TV screen.
In TaiWan, China invention patent certificate number I226792 number " scanner capable of shortening scanning time and relevant method ", secondary light source has also used white light emitting diode, and white light emitting diode also is to be combined as single white light emitting diode by red, blue, green (R, B, G) three independent luminescent grains then.
But above-mentioned prior art has following shortcoming:
(1), each white light emitting diode (LED), by the combination of three independently red, blue, green three luminescent grains, control the control of three crystal grain synchronous light-emittings and luminous intensity, the design of its drive circuit is trouble and at circuit production cost height quite.
(2), the color rendering that will control white light approaches the sunlight of entire spectrum, must consider the even regularity and the arrangement of distance to each other of red, blue, green three kinds of light, if have a crystal grain luminous intensity difference or luminous sequential time range difference asynchronous or crystal grain each other too big, then mixed light generation aberration is big, the white light color rendering is not good, the initial starting point of white light produces not pure, may for band in white yellow or white in redly.
(3), utilize three red, blue, green respectively luminous for individual dies, not only luminously can produce high heat but also consuming electric power more.
No. the 092128458th, the TaiWan, China application for a patent for invention " light-emitting device " that the design people is previous, two crystal grain (LED) that utilized blue light and redness are as light source, the fluorescence coating gummed covers and is connected on blue light crystal grain and the ruddiness crystal grain, fluorescence coating is inspired the light of a green by blue light source, and this green glow mixes with the formation white light with blue, ruddiness.
This application has utilized fluorescence coating (powder) to substitute the crystal grain (LED) of a green, and the generation of green glow and blue light, the luminous of ruddiness be synchronously, and gained white light color rendering is good.
But, this application only is implemented on single white light emitting diode, do not cooperate and be implemented on the light source module of each downstream application embodiment, therefore how to promote the white-light emitting color rendering quality of light source module, and reduce luminous material cost, light and heat energy and electric energy, be the utility model application problem to be solved.
Summary of the invention
The purpose of this utility model provides a kind of light source template with light-emitting diode that reduces cost.
Above-mentioned purpose of the present utility model is achieved in that a kind of light source template with light-emitting diode, it is characterized in that comprising:
One circuit board is welded with several white light emitting diodes on it, each white light emitting diode comprises more than one blue light crystal grain and more than one ruddiness crystal grain at least;
Fluorescence coating adds that by fluorescent material transparent adhesive tape evenly mixes, and this fluorescence coating gummed covers and is connected on blue light crystal grain and the ruddiness crystal grain.
Technique effect of the present utility model is:
1) by on printed circuit board (PCB), being welded with the white light emitting diode that one dimension or the above array of two dimension are arranged, each white light emitting diode only has indigo plant, red two crystal grain, can save the illuminating source of the green dies in the conventional art by this, and the material cost that reduces a green dies (LED).
2) by on printed circuit board (PCB), being welded with the white light emitting diode that one dimension or the above array of two dimension are arranged, each white light emitting diode all covers and is connected to the fluorescence coating of wavelength between about 500～570nm, the luminous while of blue light crystal grain, the fluorescence excitation layer was to produce exciting light simultaneously, make mixing that exciting light can be synchronous be white light, promote the quality control of the starting point color rendering of its generation of white light with blue light, ruddiness two light sources.
3) by on printed circuit board (PCB), being welded with the white light emitting diode that one dimension or the above array of two dimension are arranged, saved the green crystal grain in the conventional white light diode, drive circuit has been simplified, and reduced the generation of luminous high heat, high power consumption.
Below in conjunction with accompanying drawing the utility model is elaborated.
Description of drawings
Fig. 1 is the stereogram of the utility model light source template;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is the vertical view of the utility model light source template;
Fig. 4 is the utility model light source template vertical view of an embodiment again;
Fig. 5 is the local section enlarged drawing that single light-emitting diode of the utility model is connected with circuit board;
Fig. 6 is another kind of single the local section enlarged drawing that light-emitting diode is connected with circuit board of the utility model;
Fig. 7 is another kind of single the local section enlarged drawing that light-emitting diode is connected with circuit board of the utility model;
Fig. 8 is blue, red and the green light wavelength mixes to show the floor map of white light.
Description of reference numerals: circuit board 100; Light-emitting diode 120; Processor 150; Power supply 160; Blue light crystal grain 10; Lead 12,14,22,24; Red crystal grain 20; Fluorescence coating 30,30 '; Conduction rack 42,44; Pin 66,68; Reflection covers 50; Groove 52,62; Internal face 53; Leading coil holder 60; Transparent resin 64; Substratum transparent 70; White light W; Exciting light G; Blue light B; Ruddiness R.
Embodiment
As shown in Figure 1 and Figure 2, a kind of light source template with light-emitting diode provided by the utility model comprises:
One circuit board 100, be welded with on it the plural number white light emitting diode 120, each independently white light emitting diode 120 comprise more than one blue light crystal grain (LED) 10 and more than one ruddiness crystal grain (LED) 20 at least as the red light-emitting light source as the blue light emitting light source;
Wherein the wavelength of the blue light B that sent of blue light crystal grain 10 is about between 360～480nm, and the ruddiness R wavelength that ruddiness crystal grain 20 is sent is 585～780nm.
Wherein the fluorescent material in the fluorescence coating 30 can be aluminium garnet system (Yttrium Aluminium Garnet) or silicate (SmOn
4-) or borate family (BxOy
3-) the material formation.
Wherein blue light crystal grain 10 and ruddiness crystal grain 20 can be connected in a reflection and covers in 50 the groove 52, can fill fluorescence coating 30 in the groove 52, and its two conduction rack 42,44 is welded in (as shown in Figure 5) on the circuit board 100.
Wherein blue light crystal grain 10 and ruddiness crystal grain 20 can be connected in the default groove 62 in leading coil holder 60 tops, fluorescence coating 30 is filled in the groove 62, the transparent resin 64 of one bulb type can coat fluorescence coating 30 and leading coil holder 60 upper end one, and its electrode pin 66,68 is welded in (as shown in Figure 7) on the circuit board 100.
Wherein the material of the fluorescent material in the fluorescence coating 30 can be selected for use by the combination of a kind of of following composition or two kinds or three kinds:
Fluorescent material is by Ce elements activation and contain Y and the (YAG:Ce of the aluminium garnet of Al system
3+);
Fluorescent material is by (the YAG:EU of pomegranate system of europium element activation
2+/3+);
Fluorescent material is by (the YAG:Tb of pomegranate system of terbium (Terbium) element activation
3+).
Another embodiment of the present utility model as shown in Figure 6, a kind of light source template that provides with light-emitting diode, be on a circuit board 100, be welded with the plural number white light emitting diode 120, each independently white light emitting diode 120 comprise:
At least more than one blue light crystal grain (LED) 10 is with as blue light B luminous light source;
At least more than one ruddiness crystal grain (LED) 20 is with as ruddiness R luminous light source;
Fluorescence coating 30 ' add that by fluorescent material transparent adhesive tape evenly mixes, this fluorescence coating 30 ' 10 encapsulation of blue light crystal grain are coated;
Substratum transparent 70 with fluorescence coating 30 ' and 20 encapsulation of red crystal grain coat, wherein blue light in order to fluorescence excitation layer 30 ', make fluorescence coating 30 ' send wavelength and the different light of two wavelength such as blue light B, ruddiness R, its optical wavelength is between 500～570nm, be defined as exciting light G, this exciting light G mixes formation white light W mutually with blue light B and ruddiness R.
Wherein Fu Shuo white light emitting diode 120 is arranged on the circuit board 100 with the welding of one dimension linear array formula, and this circuit board 100 can be as the light source template/lighting of scanner.
Wherein Fu Shuo white light emitting diode 120 is arranged on the circuit board 100 with the welding of many rows one dimension straight line number display, and this circuit board 100 can be as backlight liquid crystal display light source template/lighting.
Below in conjunction with accompanying drawing structure of the present utility model and operation principle are elaborated.
As shown in Figure 1, light source template of the present utility model is a strip, and every adjacent light-emitting diode 120 (120) is made as equidistantly or not equidistant linear array, and this light source template can be used on the light source template in the scanner.Wherein include blue light crystal grain 10, ruddiness crystal grain 20 and fluorescence coating 30 in each light-emitting diode 120, blue light crystal grain 10 and ruddiness crystal grain 20 are subjected to electrode to send blue light B and ruddiness R simultaneously as two light sources, after blue light B and ruddiness R mix and with blue light B light source deexcitation fluorescence coating 30, make fluorescence coating 30 be inspired exciting light G (wavelength is between the green glow of 500～570nm), exciting light G mixes mutually with blue light B, ruddiness R again, can get white light W (as shown in Figure 8).As shown in Figure 2, blue light crystal grain 10, ruddiness crystal grain 20 mat power ends are connected a processor 150 and power supply 160 with earth terminal, so the design of its processor 150 and drive circuit is simplified than the design of three traditional crystal grain.Each white light emitting diode 120 inside of the present utility model only have two luminescent grains (being blue light crystal grain 10 and ruddiness crystal grain 20) and the white light emitting diode of traditional light source module to compare, the utility model has reduced the crystal grain of a green in fact, and substitute by fluorescence coating 30, so can reduce the cost of a green crystal grain, reduce the overall volume of light-emitting diode 120, drive circuit of the present utility model only needs at indigo plant simultaneously, red crystal grain 10, two of 20 grades design, and need not must be simultaneously at three indigo plants as traditional, red, green crystal grain designs luminous drive circuit and processor.Cause optical fluorescence 30,30 ' when being excited to exciting light G (being green glow) in addition by blue light B, exciting light G is close to the fluorescent lifetime that is synchronized with indigo plant, ruddiness (B, R), so starting point blue, red, that exciting light (B, R, G) mixes is easier to control, in other words only need control the synchronous light-emitting of indigo plant, ruddiness crystal grain 10,20, can grasp the exciting light G that is caused light and be close to and synchronous mix, so blue, red, exciting light (B, R, G) is mixed into the starting point of white light or white light color rendering and the uniformity extinguished a little are good than the conventional white light diode with blue, ruddiness (B, R).
Illuminating source of the present utility model only has 10,20 2 of indigo plant, red crystal grain, uses three crystal grain to compare with light-emitting diode on the conventional light source module, and the utility model produces light and heat energy and electric energy is low.
Used the power supply of 3 (V) and 0.02 (A) under the blue light crystal grain 10 normal states of the present utility model, institute's wasted work rate is the power supply that 0.06W, ruddiness crystal grain 20 have used 2 (V) and 0.02 (A), institute's wasted work rate is 0.04W, both additions also only have 0.1W, yet the employed white light emitting diode of conventional light source module institute consumed power is at least about more than the 0.15W, and therefore the consumption of electrical power of the present utility model significantly reduces.
As shown in Figure 4, circuit board 100 of the present utility model is the larger area square, and its plural white light emitting diode 120 (120) is with the arrangement of the above array of two dimension, and this light source template can be used in the back light template in the LCD.Certain light source template of the present utility model also can be used in the lighting apparatus of various daily lifes, as lighting, flicker light fixture or warning lamp ... etc.
As shown in Figure 5, blue light crystal grain 10 and ruddiness crystal grain 20 are connected to a reflection and cover in 50 the groove 52, wherein the lead 22,24 of ruddiness crystal grain 20 positive and negative electrodes is connected on two conduction racks 42,44, the positive and negative level lead 12,14 of blue light crystal grain 10 is connected on two conduction racks 42,44, be that insulation and left and right conduction rack 42,44 are welded on the circuit board 100 between the left and right conduction rack 42,44, to form electric loop.Fluorescent material in the fluorescence coating 30 is by aluminium garnet system (YAG) or silicate (SmOn
4-) or borate family (BxOy
3-) material constitutes, further, fluorescent material can be selected YAG:Ce
3+, YAG:EU
2+/3+, YAG:Tb
3+One kind of or two kinds, perhaps be the combination of these materials.The optical wavelength of this fluorescence coating 30 is between 500～585nm, and it is defined as green or yellow, or the color between green and the yellow.Blue light crystal grain 10 and ruddiness crystal grain 20 are subjected to the electrode effect, synchronous light-emitting, produce blue and red light source, wherein the wavelength of its light source of blue light B is between 360～480nm, ruddiness crystal grain 20 wavelength of its light source of ruddiness R that sends is between 585～780nm, when these two respectively for independently blue, ruddiness (B, R) synchronized mixes is outwards sent and is covered 50 through reflection mutually, inner wall surface thereof 53 reflects light, be green or the yellow fluorescent powder in the fluorescence excitation layer 30, generation differs from blue light (B), the exciting light G that both wavelength of ruddiness (R) are different, the wavelength of this exciting light G is between between 510～570nm, with indigo plant, ruddiness (B, R) wavelength mixes mutually, during by human eye vision, be to be defined as white light W (as shown in Figure 8).Because the generation of this white light W is a light source synchronized transmissions independently blue by two, ruddiness (B, R), in order to fluorescence excitation layer 30, therefore have brightness height, characteristic that efficient is high, three optical wavelength are mixed into high brightness and the better white light W of color rendering manifests to reach.
Another embodiment of the present utility model as shown in Figure 6, fluorescence coating 30 ' independently blue light crystal grain 10 encapsulation being coated, this fluorescence coating 30 ' the material effect identical with aforesaid fluorescence coating 30; Substratum transparent 70 recharge be coated on fluorescence coating 30 ' and ruddiness crystal grain 20 on, by this, when blue light crystal grain 10 sends blue light B, blue light B fluorescence excitation layer 30 ' make fluorescence coating 30 ' send another wavelength and blue, the different exciting light G of ruddiness, mix with blue, ruddiness two light wave appearance, make the different light of three-wavelength be mixed into white light W mutually and manifest and send from substratum transparent 70.
Another possible embodiments of the present utility model as shown in Figure 7, transparent resin 64 coats fluorescence coating 30 and leading coil holder 60, the lead 12,22 of its medium blue, ruddiness crystal grain 10,20 is welded on the pin 68, another lead 14 is welded on another pin 66, left and right lead pin 66,68 is welded on the circuit board 100, to form electric loop.
Light source template of the present utility model can be used as scanner and backlight liquid crystal display template, also can use as lighting apparatus.
Claims (8)
1, a kind of light source template with light-emitting diode is characterized in that comprising:
One circuit board, be welded with on it the plural number white light emitting diode, each independently white light emitting diode comprise more than one blue light crystal grain and more than one ruddiness crystal grain at least;
Fluorescence coating adds that by fluorescent material transparent adhesive tape evenly mixes, and this fluorescence coating gummed covers and is connected on blue light crystal grain and the ruddiness crystal grain.
2, according to the described light source template with light-emitting diode of claim 1, it is characterized in that its wavelength of blue light that blue light crystal grain is sent is about between 360～480nm, the red light wavelength that ruddiness crystal grain is sent is 585～780nm.
3,, it is characterized in that the fluorescent material in the fluorescence coating is made of aluminium garnet system or silicate or borate family material according to the described light source template of claim 1 with light-emitting diode.
4, according to the described light source template of claim 1 with light-emitting diode, it is characterized in that blue light crystal grain and ruddiness crystal grain are connected in the groove of a reflection lid, fill fluorescence coating in the groove, its two conduction rack is welded on the circuit board.
5, according to the described light source template of claim 1 with light-emitting diode, it is characterized in that, blue light crystal grain and ruddiness crystal grain are connected in the default groove in leading coil holder top, fluorescence coating is filled in the groove, the transparent resin of one bulb type coats fluorescence coating and leading coil holder upper end one, and its electrode pin is welded on the circuit board.
According to the described light source template of claim 1, it is characterized in that 6, the white light emitting diode of plural number is arranged on the circuit board with the welding of one dimension linear array formula with light-emitting diode.
According to the described light source template of claim 1, it is characterized in that 7, the white light emitting diode of plural number is arranged on the circuit board with the welding of many rows one dimension linear array formula with light-emitting diode.
8, a kind of light source template with light-emitting diode, the white light emitting diode of welding plural number on a circuit board is characterized in that: each independently white light emitting diode comprise:
At least more than one blue light crystal grain;
At least more than one ruddiness crystal grain;
Fluorescence coating adds that by fluorescent material transparent adhesive tape evenly mixes, and this fluorescence coating coats the blue light die package;
Substratum transparent coats fluorescence coating and red die package.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005200111335U CN2821871Y (en) | 2005-03-28 | 2005-03-28 | Light source mother plate with LED |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005200111335U CN2821871Y (en) | 2005-03-28 | 2005-03-28 | Light source mother plate with LED |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2821871Y true CN2821871Y (en) | 2006-09-27 |
Family
ID=37018426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2005200111335U Expired - Fee Related CN2821871Y (en) | 2005-03-28 | 2005-03-28 | Light source mother plate with LED |
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|---|---|
| CN (1) | CN2821871Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008046241A1 (en) * | 2006-10-11 | 2008-04-24 | Tsungwen Chan | A structure of backlight plate having embedded leds and a method of fabricating the same |
| CN102095093A (en) * | 2010-11-16 | 2011-06-15 | 东莞市科磊得数码光电科技有限公司 | Novel high-power LED (light emitting diode) integrated light source |
| CN102966861A (en) * | 2011-08-31 | 2013-03-13 | 隆达电子股份有限公司 | Light source module |
| CN106356368A (en) * | 2016-11-08 | 2017-01-25 | 深圳市华星光电技术有限公司 | Quantum dot LED backlight light source structure and display device |
| CN107275451A (en) * | 2006-11-17 | 2017-10-20 | 伦斯勒工业学院 | High-power white LEDs and its manufacture method |
-
2005
- 2005-03-28 CN CNU2005200111335U patent/CN2821871Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008046241A1 (en) * | 2006-10-11 | 2008-04-24 | Tsungwen Chan | A structure of backlight plate having embedded leds and a method of fabricating the same |
| CN107275451A (en) * | 2006-11-17 | 2017-10-20 | 伦斯勒工业学院 | High-power white LEDs and its manufacture method |
| CN107275451B (en) * | 2006-11-17 | 2019-09-27 | 伦斯勒工业学院 | High-power white LEDs and its manufacturing method |
| CN102095093A (en) * | 2010-11-16 | 2011-06-15 | 东莞市科磊得数码光电科技有限公司 | Novel high-power LED (light emitting diode) integrated light source |
| CN102095093B (en) * | 2010-11-16 | 2015-06-03 | 东莞市科磊得数码光电科技有限公司 | Novel high-power LED (light emitting diode) integrated light source |
| CN102966861A (en) * | 2011-08-31 | 2013-03-13 | 隆达电子股份有限公司 | Light source module |
| CN102966861B (en) * | 2011-08-31 | 2014-11-05 | 隆达电子股份有限公司 | Light source module |
| CN106356368A (en) * | 2016-11-08 | 2017-01-25 | 深圳市华星光电技术有限公司 | Quantum dot LED backlight light source structure and display device |
| CN106356368B (en) * | 2016-11-08 | 2019-05-24 | 深圳市华星光电技术有限公司 | A kind of quantum dot LED backlight light source structure and display device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060927 |