CN201838620U - High-efficiency monochromatic light source packaging structure with excitation cavity and projection optical engine - Google Patents
High-efficiency monochromatic light source packaging structure with excitation cavity and projection optical engine Download PDFInfo
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- CN201838620U CN201838620U CN2010202904385U CN201020290438U CN201838620U CN 201838620 U CN201838620 U CN 201838620U CN 2010202904385 U CN2010202904385 U CN 2010202904385U CN 201020290438 U CN201020290438 U CN 201020290438U CN 201838620 U CN201838620 U CN 201838620U
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Abstract
A high-efficiency monochromatic light source packaging structure with an excitation cavity comprises a circuit board, a heat-dissipation reflecting cup, a light-emitting chip for emitting pump light, an optical filter arranged in the reflecting cup, an optical lens arranged at the top of the reflecting cup, and a fluorescent powder layer contacted with the reflecting cup. The florescent powder layer absorbs the pump light and excites fluorescent light with wave lengths different from the pump light. A first film used for transmitting the fluorescent light and reflecting the pump light is plated on the surface of the optical lens, facing to the fluorescent powder layer. A second film used for transmitting the pump light and reflecting the fluorescent light is arranged on the surface of the optical filter, facing to the fluorescent powder layer. In the packaging structure, the two films with opposite wave communication properties are utilized for improving the conversion efficiency of the fluorescent powder, and improving emitting luminance and light output purity; and on the other hand, the reflection of the reflecting cup can be utilized for optimizing the emitting light angle and light intensity distribution, simultaneously, the heat dissipation of the fluorescent powder caused by the reflecting cup is utilized for improving the light-emitting efficiency of the monochromatic light source, and prolonging the service life. In addition, the utility model provides a protection optical engine using the high-efficiency monochromatic light source packaging structure with the excitation cavity.
Description
Technical field
The utility model relates to the encapsulating structure and the projection display technique of monochromatic source, relates in particular to a kind ofly to excite the high efficiency monochromatic source encapsulating structure in chamber and use its projecting optical engine with fluorescent material.
Background technology
Light source is one of liquid crystal projector important components, and its brightness, light utilization efficiency and caloric value directly have influence on problems such as the power consumption, projector's operation and maintenance cost of quality, the projector of projected image.In the past, most of projectors all adopt ultrahigh pressure mercury lamp (UHP) or Metal halogen lamp as light source, though this class light source brightness can meet the demands, but its power consumption high life is short, and light conversion efficiency is lower, and caloric value is big, and can pollute environment, therefore not to be well suited for as projection light source.Nowadays, increasing liquid crystal projector is all brought into use environmental protection, light-emitting diode that conversion efficiency is high (Light Emitting Diode is LED) as light source.
As the led light source of demonstration and lighting field, existing low-cost led light source adopts the fluorescence conversion usually, that is, utilize the emission light of predetermined wavelength to come excitated fluorescent powder, produces white light.For example: the white light patent of Japan day inferior (Nichia) company, utilize blue-ray LED to excite yellow YAG fluorescent material to produce white light exactly.Yet, if utilize this fluorescence conversion regime to obtain monochromatic light,, these pump lights are not fully utilized because the pump light that part is not absorbed by fluorescent material can directly shoot to the light source exit facet, reduce conversion efficiency, limited to the output brightness of light source; Simultaneously, this part light mixes output with the fluorescence that the fluorescent material stimulated emission is come out, and reduces the light output purity; In addition, fluorescent material is heated often aging easily, reduces the luminous efficiency of light source, shortens the life-span.
The utility model content
The band that the technical problems to be solved in the utility model provides a kind of conversion efficiency height, light source output brightness and purity height, good heat dissipation effect, life-span length excites the high efficiency monochromatic source encapsulating structure in chamber.
In addition, also need provide the projecting optical engine that a kind of cost is lower, Projection Display is effective.
Goal of the invention of the present utility model is achieved through the following technical solutions:
A kind of band excites the high efficiency monochromatic source encapsulating structure in chamber, comprises wiring board, at least one luminescence chip of outgoing pump light, heat radiation reflector, filter, optical lens and phosphor powder layer.The heat radiation reflector is arranged on the described wiring board, described heat radiation reflector hollow, and described luminescence chip is installed on the PCB surface in the described heat radiation reflector.Filter is arranged in the described heat radiation reflector, covers described luminescence chip.Optical lens is arranged on the top of heat radiation reflector.Phosphor powder layer contacts with described heat radiation reflector, is arranged between described filter and the optical lens.Wherein, phosphor powder layer is used for absorptive pumping light, and inspires the fluorescence of wavelength difference and this pump light.Described optical lens is coated with the first film towards the surface of phosphor powder layer, is used for transmission fluorescence, reflected pump light.Described filter is coated with second film towards the surface of phosphor powder layer, is used for the transmission pump light, reflected fluorescent light.
A kind of projecting optical engine comprises little display floater, projection lens and lighting device.Wherein, little display floater is modulated incident light, and modulates the image light that carries image information.Projection lens is used for the visual information projection on described little display floater is imaged onto screen.Lighting device shines described little display floater.This lighting device comprises that at least one above-mentioned described band excites the high efficiency monochromatic source encapsulating structure in chamber.
A kind of projecting optical engine comprises lighting device, Digital Micromirror Device, total internal reflection prism and projection lens.Wherein, lighting device is used to provide incident ray, and it comprises that at least one above-mentioned described band excites the high efficiency monochromatic source encapsulating structure in chamber.Digital Micromirror Device optionally reflects described incident ray to produce image light.Total internal reflection prism is arranged between described lighting device and the Digital Micromirror Device, and incident ray is imported described Digital Micromirror Device and reflects the image light of described Digital Micromirror Device outgoing.Projection lens is used to receive the image light of this Digital Micromirror Device institute outgoing, and this image ray cast is become image frame.
Encapsulating structure of the present utility model, on the one hand, go out fluorescence, obtain monochromatic output light by the optical excitation of phosphor powder layer absorptive pumping, it utilizes the logical two kinds of opposite films of characteristic of the ripple that is provided with on filter, the optical lens, formation excites the chamber, makes the abundant absorptive pumping light of phosphor powder layer, inspires more fluorescence, improve conversion efficiency, thereby increase the outgoing brightness of fluorescence, compare with traditional large chip, cost is low; Simultaneously, feasible fluorescence to the luminescence chip scattering obtains utilizing, and by the exit facet outgoing of light source, further improves the output brightness of light source; In addition, also avoided being mapped to the exit facet outgoing of the pump light that is not absorbed and used on the phosphor powder layer, improved the light output purity by light source.
On the other hand,, a part of light that luminescence chip sends is reflected away by the inwall of heat radiation reflector, optimize outgoing light angle and light distribution by the reflection of heat radiation reflector; And phosphor powder layer contacts with the heat radiation reflector, the heat that phosphor powder layer produces is passed by the heat radiation reflector, has solved that fluorescent material is heated and the problem of aging that causes, improves the luminous efficiency of monochromatic light light source, increases the service life.
And use the projecting optical engine of this encapsulating structure, little display floater/the Digital Micromirror Device of rayed of the illuminating source packaging structure outgoing that conversion efficiency height, light source output brightness and purity are high, afterwards, modulate image light, output to external screen from projection lens by little display floater/Digital Micromirror Device, the illuminating source packaging structure good heat dissipation effect, life-span is long, and whole projecting optical engine is simple in structure, the brightness height, production cost is lower, and Projection Display is effective.
Description of drawings
In order to be easy to explanation, the utility model is done to describe in detail by following preferred embodiment and accompanying drawing.
Fig. 1 excites the high efficiency monochromatic source encapsulating structure planar structure schematic diagram in chamber for the band of the utility model first execution mode.
Fig. 2 excites the high efficiency monochromatic source encapsulating structure planar structure schematic diagram in chamber for the band of the utility model second execution mode.
Fig. 3 excites the high efficiency monochromatic source encapsulating structure planar structure schematic diagram in chamber for the band of the utility model the 3rd execution mode.
Fig. 4 is the planar structure schematic diagram of the utility model first execution mode projecting optical engine.
Fig. 5 is the planar structure schematic diagram of the utility model second execution mode projecting optical engine.
Embodiment
The band that Figure 1 shows that the utility model first execution mode excites the planar structure schematic diagram of the high efficiency monochromatic source encapsulating structure in chamber.Band excites the high efficiency monochromatic source encapsulating structure in chamber to comprise wiring board 10, at least one luminescence chip 20, and heat radiation reflector 30, filter 40, optical lens 50, and be arranged on phosphor powder layer 60 between filter 40 and the optical lens 50.
In the utility model execution mode, wiring board 10 comprises the circuit layer (not shown), the boss 101 that is arranged at the heat dissipating layer (not shown) of circuit layer lower surface and is arranged on wiring board 10 upper surfaces.Luminescence chip 20 is arranged on this boss 101, is connected the outgoing pump light with circuit layer on the wiring board 10.Adopt the structure of boss 101, help collecting to greatest extent the light that luminescence chip 20 sends.In the utility model execution mode, boss 101 is one-body molded with wiring board 10.
In other execution mode of the utility model, this boss 101 also can separate setting with wiring board 10, and certainly, this boss 101 also can omit.
In the utility model execution mode, luminescence chip 20 is that (Light Emitting Diode, LED) chip are used to send 180 ° light (pump light) to light-emitting diode.The quantity of this led chip can be one (consulting Fig. 1), also can be a plurality of (the consulting Fig. 2) of arranging with array way.Adopt of the arrangement of a plurality of led chips, help improving the luminous flux of whole light source, and then increase brightness with array way.Consult Fig. 1, the quantity of this led chip is 1, can be blue chip, sends blue pump light, or the UV chip, sends the UV pump light.
In the utility model execution mode, form cavity between heat radiation reflector 30, filter 40 and the wiring board 10, be filled with the transparent enclosure colloid or the air (not indicating among the figure) that coat luminescence chip 20 in this cavity.Adopt the structure of transparent enclosure colloid, help simultaneously, dwindling the refractive index difference of critical mass, reduce loss at total reflection, improve light extraction efficiency for luminescence chip 20 provides reliable protection.In the embodiment, this transparent enclosure colloid is a silica gel.
Again, optical lens 50 is coated with the first film 501 towards the surface of phosphor powder layer 60, is used for transmission fluorescence, reflected pump light.Filter 40 is coated with second film 401 towards the surface of phosphor powder layer 60, be used for the transmission pump light, reflected fluorescent light.Therefore, in the utility model, phosphor powder layer 60 separates with luminescence chip 20, utilizes the reflection of 401 pairs of fluorescence of second film, the transmission of 501 pairs of fluorescence of the first film, and feasible fluorescence to the pump light source scattering obtains utilizing, by the exit facet outgoing of monochromatic source; In addition, utilize 501 pairs of pumping reflection of lights of the first film, 401 pairs of pumping optical transmissions of second film have avoided being mapped to the exit facet outgoing by monochromatic source of the pump light that is not absorbed and used on the phosphor powder layer 60, improve the light output purity.
In the utility model execution mode, optical lens 50 is a planoconvex spotlight, assembles the fluorescence of outgoing; Filter 40 is dull and stereotyped filter.Phosphor powder layer 60 is to be coated in uniformly between optical lens 50 and the filter 40.
Therefore, monochromatic source encapsulating structure of the present utility model, on the one hand, go out fluorescence by the optical excitation of phosphor powder layer absorptive pumping, obtain monochromatic output light, it utilizes the logical two kinds of opposite films of characteristic of the ripple that is provided with on filter, the optical lens, forms and excites the chamber, make the abundant absorptive pumping light of phosphor powder layer, inspire more fluorescence, improve conversion efficiency, thereby increase the outgoing brightness of fluorescence, compare with traditional large chip, cost is low; Simultaneously, feasible fluorescence to the luminescence chip scattering obtains utilizing, and by the exit facet outgoing of light source, further improves the output brightness of light source; In addition, also avoided being mapped to the exit facet outgoing of the pump light that is not absorbed and used on the phosphor powder layer, improved the light output purity by light source.
On the other hand,, a part of light that luminescence chip sends is reflected away by the inwall of heat radiation reflector, optimize LED emergent ray angle and light distribution by the reflection of heat radiation reflector; And phosphor powder layer contacts with the heat radiation reflector, the heat that phosphor powder layer produces is passed by the heat radiation reflector, has solved that fluorescent material is heated and the problem of aging that causes, improves the luminous efficiency of monochromatic light light source, increases the service life.
Figure 2 shows that the utility model second execution mode band excites the high efficiency monochromatic source encapsulating structure planar structure schematic diagram in chamber, the illuminating source packaging structure of this illuminating source packaging structure and first execution mode is basic identical, difference is that the shape of cross section of heat radiation reflector 31 shown in Figure 2 is a rectangle, and its inwall is bonded with the sheet glass 310 that the surface is coated with highly reflecting films.At this moment, filter 41 is arranged on the top of sheet glass 310.
In the utility model execution mode, highly reflecting films are the high inverse medium film of multilayer, adopt the high inverse medium film of multilayer, and reflectivity is higher, and absorption loss water is little, and transmittance is good, and range of application is wider.
In other execution mode of the utility model, these highly reflecting films can also be metallic reflective coating or semimetal reflectance coating.Said herein semimetal reflectance coating is meant that metal combines formed coating materials with medium.Said herein metallic reflective coating normally when vacuum metal film plating the outermost layer at metal film also plate dielectric layer, to prevent the metal film oxidation.When highly reflecting films are plated on glass sheet surface in the mode of vacuum coating, be easy to realize, and the highly reflecting films difficult drop-off improves reflectivity simultaneously.
Figure 3 shows that the utility model the 3rd execution mode band excites the high efficiency monochromatic source encapsulating structure planar structure schematic diagram in chamber, the illuminating source packaging structure of this illuminating source packaging structure and first execution mode is basic identical, difference is that optical lens shown in Figure 3 52 is meniscus lens, adopt this structure, avoid the transmitance of the wide-angle emergent light that plated film causes low.At this moment, filter 42 is the plano-convex filter, and certainly, this filter 42 can also be bent moon filter or dull and stereotyped filter.
Figure 4 shows that the planar structure schematic diagram of the utility model first execution mode projecting optical engine.Projecting optical engine comprises lighting device 100, polarizing beam splitter 70, little display floater 80 and projection lens 90.Wherein, the little display floater 80 of lighting device 100 irradiations, it comprises that the band of at least one above-mentioned arbitrary execution mode excites the high efficiency monochromatic source encapsulating structure in chamber and the various shaping mirror group (not shown)s of emergent light being carried out shaping.
Polarizing beam splitter 70 is arranged on the output light path of lighting device 100, in the utility model execution mode, polarizing beam splitter 70 is the lens type polarizing beam splitter, compose cube shaped by two triangular prisms, be coated with the polarization spectro rete therebetween on the contact-making surface, form a polarization light-dividing surface by this polarization spectro rete, this polarization light-dividing surface can be converted to non-polarized light polarised light and isolate the S polarised light and the P polarised light.Certainly, polarizing beam splitter 70 also can compose other shape by other prism, is converted into the polarised light outgoing as long as satisfy the non-polarized light of incident.
In other execution mode of the utility model, this polarizing beam splitter 70 also can be replaced by flat polarizing beam splitter.
The quantity of little display floater 80 is one, is arranged at a non-adjacent side of polarizing beam splitter 70 and lighting device, is used for received incident light is modulated, and modulates the image light that carries image information.In the utility model execution mode, little display floater 80 is reflective type silicon-based liquid crystal panel (Liquid Crystal on Silicon, LCOS), when the light that receives when little display floater 80 is the S polarised light, through after the modulation of little display floater 80, then reflect another polarised light P polarised light that carries image information, behind polarizing beam splitter 70 folded optical paths, with this P polarized light transmission to projection lens 90.Projection lens 90 and little display floater 80 opposing parallel settings in the execution mode of the present utility model are used for the visual information projection on little display floater 80 is imaged onto screen.
In other execution mode of the utility model, the received polarised light of little display floater 80 ' (shown in the dotted line of Fig. 4) also can be the P polarised light, through after the modulation of little display floater 80 ', be converted to the S polarised light that carries image information, and on its reflected back polarizing beam splitter 70, this S polarised light is reflexed on the projection lens 90 by polarizing beam splitter 70.In other words, a projection lens 90 and little display floater a 80 ' adjacent side that is arranged at polarizing beam splitter 70, that is, projection lens 90 is arranged at respectively on the adjacent two sides of polarizing beam splitter 70 with little display floater 80 '.At this moment, projection lens 90 is to be used to receive and throw the S polarised light that carries image information.
Therefore, the projecting optical engine of present embodiment, the high light of output brightness of the conversion efficiency height of illuminating source packaging structure outgoing, light source and purity is by the shaping of shaping mirror group, the polarization separation of polarizing beam splitter, shine little display floater, afterwards, little display floater modulates image light and enters polarizing beam splitter once more, output to external screen by polarizing beam splitter from projection lens, the illuminating source packaging structure good heat dissipation effect, the life-span is long, and whole projecting optical engine is simple in structure, the brightness height, production cost is lower, and Projection Display is effective.
Figure 5 shows that the planar structure schematic diagram of the utility model second execution mode projecting optical engine.This projecting optical engine comprises lighting device 100 ', total internal reflection prism 71, Digital Micromirror Device (Digital Micro mirror Device, DMD) 81 and projection lens 91.Wherein, lighting device 100 ' is used to provide incident ray, and it comprises that the band of at least one above-mentioned arbitrary execution mode excites the high efficiency monochromatic source encapsulating structure in chamber and the various shaping mirror group (not shown)s of emergent light being carried out shaping.
Therefore, the projecting optical engine of present embodiment, the light of the illuminating source packaging structure outgoing that conversion efficiency height, light source output brightness and purity are high is by the shaping of shaping mirror group, the reflection of total internal reflection prism, enter Digital Micromirror Device and carry out modulation, afterwards, Digital Micromirror Device modulates image light (image light) and outputs to external screen from projection lens, the illuminating source packaging structure good heat dissipation effect, life-span is long, and whole projecting optical engine is simple in structure, the brightness height, production cost is lower, and Projection Display is effective.
The embodiment of the above is the better embodiment of utility model, be not to limit concrete practical range of the present utility model with this, scope of the present utility model comprises and is not limited to this embodiment, and for example, luminescence chip is one or a plurality of LD chips of arranging with array way.Perhaps little display floater be transmissive liquid crystal panel (Liquid Crystal Display, LCD), at this moment, omit polarizing beam splitter, transmissive liquid crystal panel is arranged on the emitting light path of lighting device, incident light is modulated, and transmitted the light that carries image information.The equivalence variation that all shapes according to the utility model, structure are done all comprises in the protection range of the present utility model.
Claims (15)
1. a band excites the high efficiency monochromatic source encapsulating structure in chamber, comprises at least one luminescence chip of wiring board and outgoing pump light, it is characterized in that, also comprises:
The heat radiation reflector is arranged on the described wiring board, described heat radiation reflector hollow, and described luminescence chip is installed on the PCB surface in the described heat radiation reflector;
Filter is arranged in the described heat radiation reflector, covers described luminescence chip;
Optical lens, be arranged on the heat radiation reflector the top; And
Phosphor powder layer contacts with described heat radiation reflector, is arranged between described filter and the optical lens;
Wherein, phosphor powder layer is used for absorptive pumping light, and inspires the fluorescence of wavelength difference and this pump light; Described optical lens is coated with the first film towards the surface of phosphor powder layer, is used for transmission fluorescence, reflected pump light; Described filter is coated with second film towards the surface of phosphor powder layer, is used for the transmission pump light, reflected fluorescent light.
2. band according to claim 1 excites the high efficiency monochromatic source encapsulating structure in chamber, it is characterized in that, be electroplate with metallic reflector on the inwall of described heat radiation reflector, and, the inwall of heat radiation reflector is provided with step, and described filter is arranged on the described step.
3. band according to claim 1 excites the high efficiency monochromatic source encapsulating structure in chamber, it is characterized in that, the shape of cross section of described heat radiation reflector is a rectangle, and its inwall is bonded with the sheet glass that the surface is coated with highly reflecting films; Described filter is arranged on the top of sheet glass.
4. band according to claim 1 excites the high efficiency monochromatic source encapsulating structure in chamber, it is characterized in that, described heat radiation reflector is a reverse taper, and its material is a metal.
5. band according to claim 1 excites the high efficiency monochromatic source encapsulating structure in chamber, it is characterized in that, form cavity between described heat radiation reflector, filter and the wiring board, be filled with the transparent enclosure colloid or the air that coat described luminescence chip in the described cavity.
6. band according to claim 1 excites the high efficiency monochromatic source encapsulating structure in chamber, it is characterized in that, described optical lens is planoconvex spotlight or meniscus lens.
7. band according to claim 1 excites the high efficiency monochromatic source encapsulating structure in chamber, it is characterized in that, described filter is dull and stereotyped filter, plano-convex filter or bent moon filter.
8. band according to claim 1 excites the high efficiency monochromatic source encapsulating structure in chamber, it is characterized in that, described luminescence chip is led chip or LD chip.
9. band according to claim 8 excites the high efficiency monochromatic source encapsulating structure in chamber, it is characterized in that, described luminescence chip is blue chip or UV chip.
10. band according to claim 1 excites the high efficiency monochromatic source encapsulating structure in chamber, it is characterized in that, described phosphor powder layer is a kind of or its combination in the monochromatic fluorescent material of red, yellow, green, blue.
11. band according to claim 1 excites the high efficiency monochromatic source encapsulating structure in chamber, it is characterized in that the upper surface of described wiring board has boss, described luminescence chip is arranged on the described boss.
12. a projecting optical engine comprises:
Little display floater is modulated incident light, and modulates the image light that carries image information;
Projection lens is used for the visual information projection on described little display floater is imaged onto screen; And
Lighting device shines described little display floater, it is characterized in that, described lighting device comprises that any described band at least one claim 1 to 11 excites the high efficiency monochromatic source encapsulating structure in chamber.
13. projecting optical engine according to claim 12 is characterized in that, described little display floater is LCOS, also is provided with polarizing beam splitter on its input path.
14. projecting optical engine according to claim 12 is characterized in that, described little display floater is LCD.
15. a projecting optical engine comprises:
Lighting device is used to provide incident ray, it is characterized in that, described lighting device comprises that any described band at least one claim 1 to 11 excites the high efficiency monochromatic source encapsulating structure in chamber;
Digital Micromirror Device optionally reflects described incident ray to produce image light;
Total internal reflection prism is arranged between described lighting device and the Digital Micromirror Device, and incident ray is imported described Digital Micromirror Device and reflects the image light of described Digital Micromirror Device outgoing; And
Projection lens is used to receive the image light of this Digital Micromirror Device institute outgoing, and this image ray cast is become image frame.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010202904385U CN201838620U (en) | 2010-08-12 | 2010-08-12 | High-efficiency monochromatic light source packaging structure with excitation cavity and projection optical engine |
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| CN2010202904385U CN201838620U (en) | 2010-08-12 | 2010-08-12 | High-efficiency monochromatic light source packaging structure with excitation cavity and projection optical engine |
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Cited By (11)
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| CN102244186A (en) * | 2011-07-19 | 2011-11-16 | 彩虹集团公司 | High-power LED (light emitting diode) light emitting device package structure |
| CN102324426A (en) * | 2011-09-30 | 2012-01-18 | 深圳市灏天光电有限公司 | Novel high-power light-emitting diode (LED) package structure |
| CN102386312A (en) * | 2011-12-06 | 2012-03-21 | 常熟琦光光电科技有限公司 | LED packaging process |
| CN103713454A (en) * | 2012-09-28 | 2014-04-09 | 深圳市绎立锐光科技开发有限公司 | Light emitting device and related projection system |
| CN106784260A (en) * | 2016-11-30 | 2017-05-31 | 深圳市聚飞光电股份有限公司 | A kind of preparation method of direct LED backlight |
| CN107193180A (en) * | 2012-08-02 | 2017-09-22 | 日亚化学工业株式会社 | Wavelength converter |
| CN109254485A (en) * | 2017-06-29 | 2019-01-22 | 深圳市光峰光电技术有限公司 | Light supply apparatus and optical projection system |
| CN110081381A (en) * | 2019-05-08 | 2019-08-02 | 镇江尚沃电子有限公司 | A kind of novel three-dimensional LED encapsulation vehicle headlight light-source structure and application system |
| CN111837171A (en) * | 2019-02-20 | 2020-10-27 | 京东方科技集团股份有限公司 | Display device and method for manufacturing the same |
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| CN102244186A (en) * | 2011-07-19 | 2011-11-16 | 彩虹集团公司 | High-power LED (light emitting diode) light emitting device package structure |
| CN102244186B (en) * | 2011-07-19 | 2013-07-03 | 彩虹集团公司 | High-power LED (light emitting diode) light emitting device package structure |
| CN102324426A (en) * | 2011-09-30 | 2012-01-18 | 深圳市灏天光电有限公司 | Novel high-power light-emitting diode (LED) package structure |
| CN102386312A (en) * | 2011-12-06 | 2012-03-21 | 常熟琦光光电科技有限公司 | LED packaging process |
| CN107193180A (en) * | 2012-08-02 | 2017-09-22 | 日亚化学工业株式会社 | Wavelength converter |
| CN103713454A (en) * | 2012-09-28 | 2014-04-09 | 深圳市绎立锐光科技开发有限公司 | Light emitting device and related projection system |
| CN103713454B (en) * | 2012-09-28 | 2016-12-07 | 深圳市绎立锐光科技开发有限公司 | Light-emitting device and relevant projecting system |
| CN106784260A (en) * | 2016-11-30 | 2017-05-31 | 深圳市聚飞光电股份有限公司 | A kind of preparation method of direct LED backlight |
| CN109254485A (en) * | 2017-06-29 | 2019-01-22 | 深圳市光峰光电技术有限公司 | Light supply apparatus and optical projection system |
| CN109254485B (en) * | 2017-06-29 | 2021-05-14 | 深圳光峰科技股份有限公司 | Light source device and projection system |
| US11614678B2 (en) | 2017-06-29 | 2023-03-28 | Appotronics Corporation Limited | Light source device and projection system |
| CN111837171A (en) * | 2019-02-20 | 2020-10-27 | 京东方科技集团股份有限公司 | Display device and method for manufacturing the same |
| CN111837171B (en) * | 2019-02-20 | 2022-07-01 | 京东方科技集团股份有限公司 | Display device and method for manufacturing the same |
| CN110081381A (en) * | 2019-05-08 | 2019-08-02 | 镇江尚沃电子有限公司 | A kind of novel three-dimensional LED encapsulation vehicle headlight light-source structure and application system |
| WO2022077137A1 (en) * | 2020-10-12 | 2022-04-21 | 王�华 | Microorganism laser developing device |
| CN113178435A (en) * | 2021-04-19 | 2021-07-27 | 深圳市洲明科技股份有限公司 | COB packaging structure optical module, display screen and spraying method |
| CN113178435B (en) * | 2021-04-19 | 2024-01-19 | 深圳市洲明科技股份有限公司 | COB packaging structure optical module, display screen and spraying method |
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Address after: Cui Jing Road Shenzhen City, Guangdong province 518118 Pingshan New District No. 35 No. 1 Building 6 East Patentee after: Butterfly Technology (Shenzhen) Limited Address before: 518057, Guangdong, Nanshan District hi tech Industrial Park, Shenzhen District North West Road, No. 5, Galaxy Fengyun building, 3 floor Patentee before: Butterfly Technology (Shenzhen) Limited |
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Granted publication date: 20110518 |