CN101392888A - Illuminating device of LED light source - Google Patents
Illuminating device of LED light source Download PDFInfo
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- CN101392888A CN101392888A CNA2008100299732A CN200810029973A CN101392888A CN 101392888 A CN101392888 A CN 101392888A CN A2008100299732 A CNA2008100299732 A CN A2008100299732A CN 200810029973 A CN200810029973 A CN 200810029973A CN 101392888 A CN101392888 A CN 101392888A
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- light source
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Abstract
The invention discloses an LED lighting device. The device comprises at least one metal reflecting shade which has a roughly U-shaped cross section and is provided with a bottom plate, and a first side plate and a second side plate which are extended from two sides of the bottom plate. The bottom plate is adhered with a metal circuit board which is electrically provided with a plurality of LEDs. A reflecting plate is arranged on either of the first side plate and the second side plate. Light panels are embedded between the metal reflecting shades. A support platform of a light panel is arranged on the light panel at a position close to each metal reflecting shade. Compared with the prior art, the device has advantages of greatly reduced power consumption, good radiation effect, improved service life and improved light brightness.
Description
Technical field
The present invention relates to liquid crystal indicator and original device backlight field and field of illuminating device.
Background technology
In existing large scale liquid crystal display unit and lighting device, light source generally uses cold-cathode tube, processs lamp, fluorescent lamp etc. in vain.Wherein, CCFL is as the light source of liquid crystal indicator and backlight arrangement, and its defective is that volume is big, power consumption is high, contains harmful substance mercury and easy fracture etc.And it is bigger to process traditional lighting light source loss ratios aspect energy resource consumption such as lamp, fluorescent lamp in vain, therefore the environmental protection friendliness is poor, and it scraps the processing cost height, therefore, these traditional cold-cathode tubes, process lamp in vain, fluorescent lamp has the shortcoming that self is difficult to overcome, thereby cause it to be applied.
Along with the continuous development and the maturation of relevant illumination and Display Technique, a kind of new type light source, promptly highlighted LED be maturation and obtained popularization gradually more and more.Aspects such as this novel product of while is little at volume, energy-saving and environmental protection have shown remarkable advantage, and its various aspects Application Expansion in productive life is common people's Focal Point of Common Attention.Yet the heat dispersion of existing led light source display unit is poor, service time, long words caused the display unit temperature to raise easily, therefore caused failure of apparatus easily, shortened its service life, the optical texture of existing display unit is unreasonable simultaneously, causes luminance efficiency low.
Therefore, need provide a kind of improved system to overcome the shortcoming of prior art.
Summary of the invention
The purpose of this invention is to provide the good led light source light-emitting device of a kind of radiating effect.
To achieve these goals, the invention provides a kind of led light source light-emitting device, comprise: at least one metal reflector, the cross section of each metal reflector is roughly U-shaped, and described metal reflective is covered with base plate, vertically extending first side plate and second side plate from the base plate both sides, be bonded with metal circuit board on the described base plate, a plurality of LED are installed on the described metal circuit board electrically, on in described first side plate and second side plate one of them reflecting piece is installed, described to being embedded with LGP between the metal reflector, described LGP has formed the LGP support platform near the position of each metal reflector.
The invention has the advantages that: with respect to prior art, reduced power consumption widely, had better heat radiating effect, prolonged the service life of display unit, and strengthened the light irradiation brightness.
Below in conjunction with accompanying drawing, describe the present invention in detail by preferred embodiment.
Description of drawings
Fig. 1 is the plane structure chart of led light source light-emitting device of the present invention.
Fig. 2 is the cutaway view of A-A direction among Fig. 1.
Fig. 3 is the enlarged drawing of B part among Fig. 2.
Fig. 4 is the enlarged drawing of C part among Fig. 1.
LED that Fig. 5 is Fig. 1 in Fig. 4 structure and the stereogram after the metal circuit board assembling.
The stereogram of the metal reflector that Fig. 6 is Fig. 1 in Fig. 4 structure.
Fig. 7 is the stereogram after Fig. 5 structure and the assembling of Fig. 6 structure.
The exploded view of the LGP that Fig. 8 is Fig. 1 in Fig. 4 structure.
Fig. 9 is the stereogram of Fig. 1 after assembling to Fig. 8 structure and metal frame.
Figure 10 is along the cutaway view of thickness direction among Fig. 9.
Figure 11 and Figure 10 are similar, have showed the light propagation path.
Figure 12 and Figure 10 are similar, have showed radiating effect figure.
The little processing structure of optics of the LGP that Figure 13 is Fig. 1 in Figure 12.
The specific embodiment
With reference now to accompanying drawing, present invention is described.
To shown in Figure 7, led light source light-emitting device provided by the invention comprises at least one metal reflector 5 as Fig. 1.The cross section of each metal reflector 5 is roughly U-shaped, and it comprises base plate 52, vertically extending first side plate 54 and second side plate 56 from base plate 52 both sides.By suitable binding agent, for example heat-conducting glue and be bonded with metal circuit board 4 is equipped with (such as the mode by Reflow Soldering) LED9 electrically on the metal circuit board 4 on the base plate 52.In addition, by conducting resinl reflecting piece 2 is installed on second side plate 56.LGP 3 is embedded between this is to metal reflector 5.In addition, LGP 3 has formed LGP support platform 33 near the position of each metal reflector 5, is used for further being supported between the metal reflector 5.The light transmission that LED9 sends LGP 3, thereby make whole LGP 3 send light.
As shown in Figure 8, LGP has sandwich construction 3 innings.With reference to figure 9 to Figure 12, the whole LED light source display unit (with reference to figure 1) that metal frame 17 will comprise members such as metal circuit board 4, LED9, metal reflector 5 wraps up in addition.Represented as Figure 11, the light radial radiation that LED9 sends is in LGP 3, and the part light that is radiated then in the LGP 3 has carried out secondary reflection again by reflecting piece 2, thereby brightness is provided.As shown in figure 12, a part of heat that the led light source display unit is sent is dispersed by metal frame 17, part heat sees through metal reflector 5 and then disperses through metal frame 17, also some heat sees through metal circuit board 4, metal reflector 5 exhales from metal frame 17 at last, thereby with respect to prior art, radiating effect is provided widely, has prolonged the service life of display unit, and strengthened the light irradiation brightness.
Figure 13 is the little processing structure of the optics of LGP.This structure has further been improved radiating effect.
In addition, metal reflector 5 can be made by metal materials such as aluminium, stainless iron, stainless steel, alloys, thereby has heat conduction, radiating effect and effect, and the heat that makes LED9 produce at work is transmitted to this to heat above the reflection shield 5 by metal circuit board 5.
Fixing between the base plate 52 of metal reflector 5 and the metal circuit board 4 can be to use heat-conducting glue mutually bonding, it has good adhesive property and heat conductivility, such as organic heat conductive silica gel, this bonding serviceability temperature (50 ℃～+ 250 ℃) with good thermal conductivity broad, good stability, nontoxic, no burn into is tasteless, do not dissolve.
One of feature of LED9 is that it has directionality, but its directionality is not definitely completely, because its cup structure is arranged, can only be in certain angle so its light emission direction strictness is said, general lighting angle scope is 105 degree～140 degree (being shown as 120 degree among Figure 11).
In addition, metal frame 17 can be made by heat conduction and heat radiation metal materials such as aluminium, electrolytic zinc-coated steel sheets, and its effect is layer keeper and the radiating piece that is used for doing whole device.The present invention can be applied to LCD backlight source field and LED lighting field etc.
The inner surface of above-mentioned metal reflector 5 is a reflective mirror coating, or is general surface, carries out reflective but stick on reflecting piece on the inner surface of two sides (that is first and second side plates 54,56) parallel with LGP 3.The bottom surface of above-mentioned LGP 3 has makes the equally distributed optical microstructures of the light of injecting LGP 3, this micro-structural has and is v groove shape, hemispherical, a polygonal shape, round table-like, rhombus etc., these a plurality of micro-structurals both can equal and opposite in directions and had been changed from LED9 to corresponding distant place density, also can arrangement pitches identical, but the size variation of each micro-structural, perhaps the size of micro-structural and density degree change simultaneously.In addition, the arrangement of LED9 on metal circuit board 4 can for single file or duplicate rows be arranged side by side or the duplicate rows cross arrangement.In addition, the viewing area diagonal of described led light source light-emitting device is 3.5 inches-100 inches, thereby applicable to different application scenarios.
Above disclosed only is the preferred embodiments of the present invention, can not limit the present invention's interest field certainly with this, and therefore the equivalent variations of being done according to the present patent application claim still belongs to the scope that the present invention is contained.
Claims (11)
1. led light source light-emitting device, it is characterized in that comprising: at least one metal reflector, the cross section of each metal reflector is roughly U-shaped, and described metal reflective is covered with base plate, vertically extending first side plate and second side plate from the base plate both sides, be bonded with metal circuit board on the described base plate, a plurality of LED are installed on the described metal circuit board electrically, on in described first side plate and second side plate one of them reflecting piece is installed, described to being embedded with LGP between the metal reflector, described LGP has formed the LGP support platform near the position of each metal reflector.
2. led light source light-emitting device according to claim 1 is characterized in that: described metal circuit board is fixed up by the mode and the LED of reflow soldering.
3. led light source light-emitting device according to claim 1 is characterized in that: described metal reflector is made by metal materials such as aluminium, stainless iron, stainless steel, alloys.
4. led light source light-emitting device according to claim 1 is characterized in that: use heat-conducting glue mutually bonding between the base plate of described metal reflector and the metal circuit board.
5. led light source light-emitting device according to claim 4 is characterized in that: described bonded adhesives is heat-conducting glue or the good double faced adhesive tape of heat conductivility.
6. led light source light-emitting device according to claim 1 is characterized in that: described metal frame is made by heat conduction and heat radiation metal materials such as aluminium, electrolytic zinc-coated steel sheets.
7. led light source light-emitting device according to claim 1 is characterized in that: the inner surface of described metal reflector is a reflective mirror coating, or is general surface, but sticks on reflecting piece on the inner surface of first and second side plates parallel with LGP.
8. led light source light-emitting device according to claim 1, it is characterized in that: the bottom surface of described LGP has makes the equally distributed a plurality of optical microstructures of the light of injecting LGP, described micro-structural have shapes such as v groove shape, hemispherical, a polygonal shape, round table-like, rhombus.
9. led light source light-emitting device according to claim 1, it is characterized in that: described a plurality of micro-structurals are equal and opposite in directions and change from LED to corresponding distant place density, perhaps the arrangement pitches of micro-structural is identical, but the size variation of each micro-structural, perhaps the size of micro-structural and density degree change simultaneously.
10. led light source light-emitting device according to claim 1 is characterized in that: described LED is arranged as single file or duplicate rows side by side or the duplicate rows cross arrangement on metal circuit board, LED quantity is (to contain two) more than two.
11. led light source light-emitting device according to claim 1 is characterized in that: the viewing area diagonal of described led light source light-emitting device is 3.5 inches one 100 inches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100299732A CN101392888A (en) | 2008-08-04 | 2008-08-04 | Illuminating device of LED light source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100299732A CN101392888A (en) | 2008-08-04 | 2008-08-04 | Illuminating device of LED light source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101392888A true CN101392888A (en) | 2009-03-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100299732A Pending CN101392888A (en) | 2008-08-04 | 2008-08-04 | Illuminating device of LED light source |
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| CN (1) | CN101392888A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010130108A1 (en) * | 2009-05-09 | 2010-11-18 | 中山泰腾灯饰有限公司 | Led lamp |
| WO2011147108A1 (en) * | 2010-05-27 | 2011-12-01 | 深圳市新超亮特种显示设备有限公司 | Liquid crystal display screen |
| CN102322601A (en) * | 2011-10-12 | 2012-01-18 | 深圳市华星光电技术有限公司 | Light-emitting diode (LED) backlight module and liquid crystal display device |
| CN102494287A (en) * | 2011-12-22 | 2012-06-13 | 南京中电熊猫液晶显示科技有限公司 | Backlight module |
| WO2013075323A1 (en) * | 2011-11-22 | 2013-05-30 | 深圳市华星光电技术有限公司 | Backlight module for display device |
| CN102944909B (en) * | 2011-08-15 | 2015-11-25 | 亚世光电股份有限公司 | A kind of backlight source light conducting plate |
-
2008
- 2008-08-04 CN CNA2008100299732A patent/CN101392888A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010130108A1 (en) * | 2009-05-09 | 2010-11-18 | 中山泰腾灯饰有限公司 | Led lamp |
| WO2011147108A1 (en) * | 2010-05-27 | 2011-12-01 | 深圳市新超亮特种显示设备有限公司 | Liquid crystal display screen |
| CN102944909B (en) * | 2011-08-15 | 2015-11-25 | 亚世光电股份有限公司 | A kind of backlight source light conducting plate |
| CN102322601A (en) * | 2011-10-12 | 2012-01-18 | 深圳市华星光电技术有限公司 | Light-emitting diode (LED) backlight module and liquid crystal display device |
| WO2013053139A1 (en) * | 2011-10-12 | 2013-04-18 | 深圳市华星光电技术有限公司 | Led backlight module and liquid crystal display device |
| US8523422B2 (en) | 2011-10-12 | 2013-09-03 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | LED back light module and liquid crystal display device |
| WO2013075323A1 (en) * | 2011-11-22 | 2013-05-30 | 深圳市华星光电技术有限公司 | Backlight module for display device |
| CN102494287A (en) * | 2011-12-22 | 2012-06-13 | 南京中电熊猫液晶显示科技有限公司 | Backlight module |
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Open date: 20090325 |