CN203311153U - Positive projection integrated machine and reflective screen - Google Patents
Positive projection integrated machine and reflective screen Download PDFInfo
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- CN203311153U CN203311153U CN2013202206866U CN201320220686U CN203311153U CN 203311153 U CN203311153 U CN 203311153U CN 2013202206866 U CN2013202206866 U CN 2013202206866U CN 201320220686 U CN201320220686 U CN 201320220686U CN 203311153 U CN203311153 U CN 203311153U
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Abstract
The utility model provides a positive projection integrated machine and a reflective screen. The positive projection integrated machine comprises a casing, a reflective screen which is arranged outside the casing and is fixed on the casing, and an optical engine which is fixed on the casing. The positive projection integrated machine has the advantages of compact structure and simple assembly, and the installation and debugging are not needed in use. The reflective screen comprises a substrate and a diffuse reflection layer which covers a surface at one side of the substrate, the reflective screen can carry out diffuse reflection on light, and thus the angle of view is increased.
Description
Technical field
The utility model relates to the Large Screen Display Technology field, more particularly, relates to a kind of orthogonal projection all-in-one and reflective viewing screen.
Background technology
Along with the development of modern society, people are more and more to the demand of display technique, and wherein, Large Screen Display Technology is widely used in the each side such as Surveillance center, network management center, temporary meeting, technology lecture.
What in Large Screen Display Technology, generally use is liquid crystal or plasma display, or Projection Display.Liquid crystal or isoionic large-sized monitor need customization, and cost is high, consumes energy high, and later maintenance cost is higher.Projection Display realizes easily that with respect to liquid crystal or plasma display large scale shows, cost and power consumption are lower.Projection Display projects image or video on the demonstration curtain by projector, to realize showing the purpose of image.
But the projector in projection display equipment in use, relatively limit to by installation site, needs the professional to carry out installment and debugging.
The utility model content
The utility model provides a kind of orthogonal projection all-in-one and reflective viewing screen, to improve the convenience of projection display equipment installment and debugging.
For achieving the above object, the utility model provides following technical scheme:
A kind of orthogonal projection all-in-one comprises:
Casing;
Be arranged on described casing outside, and be fixed on the reflective viewing screen on described casing housing;
Be fixed on the light engine on described casing housing.
Preferably, described orthogonal projection all-in-one also comprises:
Be arranged on the audio-video signal interface on described casing;
Be fixed on described casing housing, and the DVB module be connected with described audio-video signal interface, described DVB module is connected with described light engine;
Be fixed on described casing housing, and the sound module be connected with described DVB module.
Preferably, described light engine, DVB module and sound module all are positioned at described casing inside.
Preferably, described light engine and DVB module all are positioned at described casing inside, and described sound module is positioned at described casing outside.
Preferably, described DVB module comprises:
The audio-video signal separation vessel be connected with described audio-video signal interface;
The video signal preprocessor be connected with described audio-video signal separation vessel.
Preferably, described sound module comprises:
The audio signal processor be connected with described audio-video signal separation vessel;
The loudspeaker that are connected with described audio signal processor.
Preferably, described light engine comprises:
The microprocessor be connected with described video signal preprocessor;
Light source;
The light path system be connected with described light source;
The imaging engine be connected with described light path system with described microprocessor simultaneously;
The camera lens be connected with described imaging engine;
The reflective mirror be connected with described camera lens.
Preferably, described light engine is ultrashort burnt light engine.
The utility model also provides a kind of reflective viewing screen, is applied to above-described orthogonal projection all-in-one, comprising: substrate and cover the diffuse reflector on described substrate one side surface.
Preferably, between described substrate and described diffuse reflector, comprising: cover the reflection horizon on described substrate surface and cover described reflection horizon and deviate from the diffusion layer on described substrate one side surface; Described diffuse reflector covers described diffusion layer to deviate from described substrate one side surface.
Preferably, described reflective viewing screen is grey.
Preferably, described diffuse reflector, diffusion layer and reflection horizon are the polymer composite layer.
Preferably, described substrate is hard laminate.
Preferably, described substrate is hard plastic board or honeycomb aluminum plate.
Preferably, described reflective viewing screen also comprises: the frame that surrounds described diffuse reflector, diffusion layer, reflection horizon and substrate side.
Preferably, described reflective viewing screen also comprises: cover described diffuse reflector and deviate from the protective seam on described substrate one side surface.
Preferably, described protective seam is the polymer composite layer.
Compared with prior art, technical scheme provided by the utility model has the following advantages at least:
Orthogonal projection all-in-one provided by the utility model, adopt integral structure, and light engine and reflective viewing screen are integrated, be fixed on casing, compact conformation, easily assembled, during use without installment and debugging.
In addition, reflective viewing screen provided by the utility model, arrange a diffuse reflector on the surface of substrate one side, and diffuse reflector carries out the diffuse reflection effect to light, makes the visual angle raising greatly more of the prior art of reflective viewing screen.
The accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, below will the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The stereographic map of the basic structure of the orthogonal projection all-in-one that Fig. 1 provides for the utility model embodiment mono-;
The front elevation of the orthogonal projection all-in-one that Fig. 2 provides for the utility model embodiment mono-;
The concrete structure figure of the orthogonal projection all-in-one that Fig. 3 provides for the utility model embodiment mono-;
The sectional view of the reflective viewing screen that Fig. 4 provides for the utility model embodiment bis-;
The index path of the reflective viewing screen that Fig. 5 provides for the utility model embodiment bis-.
Embodiment
For above-mentioned purpose of the present utility model, feature and advantage can be become apparent more, below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail.
A lot of details have been set forth in the following description so that fully understand the utility model, but the utility model can also adopt other to be different from alternate manner described here and implement, those skilled in the art can be in the situation that do similar popularization without prejudice to the utility model intension, so the utility model is not subjected to the restriction of following public specific embodiment.
Secondly, the utility model is described in detail in conjunction with schematic diagram, when the utility model embodiment is described in detail in detail; for ease of explanation; the sectional view of indication device structure can be disobeyed general ratio and be done local the amplification, and described schematic diagram is example, and it should not limit the scope of the utility model protection at this.The three-dimensional space that should comprise in addition, length, width and the degree of depth in actual fabrication.
Embodiment mono-
The present embodiment provides a kind of orthogonal projection all-in-one, comprising: casing; Be arranged on described casing outside, and be fixed on the reflective viewing screen on described casing housing; Be fixed on the light engine on described casing housing, described light engine receives picture signal, and the vision signal of reception is converted to image, projects on reflective viewing screen.
Traditional projector generally adopts the mode of lifting, if have in the situation of ceiling lamp and just can not lift projector, otherwise pendent lamp can block the light of projector, make to show that curtain can't show normal picture, and for renovated place, lifting projector not only can destroy finishing material, also can destroy whole decoration style, cause the problems such as impact illumination, these all can cause limitation to the installation site of projector.
And, the relative position of traditional projector and display screen face is unfixing, if the two is not debugged when mounted, easily cause the projected image of projector can't be presented on the display screen face fully, and then affect image quality, therefore, need the professional to carry out installment and debugging, caused inconvenience for the use of large-size screen monitors projection display technique.
In the present embodiment, by casing, reflective viewing screen and light engine are combined, form an integral body, the relative position of reflective viewing screen and light engine is constant, light engine can be good at, will show completely that image projection is to reflective viewing screen, with the time without the professional, carry out Installation and Debugging.
In order further to optimize the various aspects of performance of above-mentioned orthogonal projection all-in-one, as shown in Figure 1, orthogonal projection all-in-one in the present embodiment, except comprising casing 101, be fixed on the light engine 104 on described casing 101 housings, and be arranged on described casing 101 outsides and be fixed on the reflective viewing screen 102 on described casing 101 housings, can also comprise:
Audio-video signal interface on casing 101 is set;
Be fixed on described casing 101 housings, the DVB(Digital Video Broadcasting be connected with described audio-video signal interface, digital video broadcasting) module 103, described DVB module 103 receives by the audio-video signal of described audio-video signal interface input, the audio-video signal received is separated into to sound signal and picture signal, and described picture signal is processed, then by described sound signal and image signal output;
Be fixed on described casing 101 housings, and the sound module 105 be connected with described DVB module 103, described sound module 105 receives the sound signal of described DVB module 103 outputs, and converts the sound signal of reception to voice signal.
The orthogonal projection all-in-one that the present embodiment provides can have two kinds of implementations, and a kind of mode is all to be fixed on casing 101, can not dismantle, and this implementation makes the orthogonal projection all-in-one convenient in use; Another kind of mode is to adopt split-type structural, during use, only reflective viewing screen 102, DVB module 103, light engine 104 and sound module 105 need be fixed on to specific interface on the housing of casing 101 gets final product, owing on the casing housing, for each several part, set interface being installed, all fix, so only needing simple assembling just can use, and can the image quality of projection imaging not caused any impact, the advantage of this mode is convenient disassembly, it is simple and easy to fill, convenient transportation.
In addition, light engine 104 and DVB module 103 can all be positioned at described casing 101 inside, and described sound module 105 is positioned at described casing 101 outsides.
For the structure that makes the orthogonal projection all-in-one is compacter, preferred, described light engine 104, DVB module 103 and sound module 105 all are positioned at described casing 101 inside.Concrete, as shown in Figure 2, the front elevation of the orthogonal projection all-in-one provided for the present embodiment, reflective viewing screen 102 is arranged at casing 101 tops, and be fixed on the housing of casing 101, casing 101 inside are fixed with DVB module 103, light engine 104 and sound module 105, and such structural design is very compact, because without installation, so be not subjected to the limitation of installation site.
As shown in Figure 3, light engine 104 is connected with DVB module 103 respectively with sound module 105 concrete structure of the orthogonal projection all-in-one that the present embodiment provides, and DVB module 103 receives extraneous audio-video signal 200.
Wherein, described DVB module 103 comprises: the audio-video signal separation vessel 301 be connected with described audio-video signal interface, described audio-video signal separation vessel 301 receives by the audio-video signal 300 of described audio-video signal interface input, described audio-video signal 300 is separated into to sound signal and picture signal, and by described sound signal and image signal output; With the video signal preprocessor 302 that described audio-video signal separation vessel 301 is connected, described video signal preprocessor 302 receives the picture signal of described audio-video signal separation vessel 301 outputs, and the coordinate of the picture signal that receives is adjusted, and then exports.
It should be noted that, audio-video signal interface set on casing 101 can be for multiple, accordingly, audio-video signal separation vessel 301 can be realized dissimilar audio-video signal is separated, thereby has widened the range of application of the orthogonal projection all-in-one that the present embodiment provides.
Described sound module 105 comprises: the audio signal processor 309 be connected with described audio-video signal separation vessel 301, described audio signal processor 309 receives the sound signal of described audio-video signal separation vessel 301 outputs, and the sound signal received is carried out noise reduction and amplified and process; With the loudspeaker 310 that described audio signal processor 309 is connected, described loudspeaker 310 receive the sound signal of described audio signal processor 309 outputs, and the sound signal of reception is converted to voice signal, then export.
The present embodiment preferably can be set to loudspeaker 310 two loudspeaker in left and right, and is arranged on casing 101 inside, thereby forms height speech chamber, reaches the sound effect of high-fidelity.
Described light engine 104 comprises: the microprocessor 303 be connected with described video signal preprocessor, and the distortion of the picture signal of 303 pairs of described video signal preprocessor 302 inputs of described microprocessor is adjusted, and the picture signal through adjusting is exported; Light source 304, described light source 304 provides light signal for the imaging engine 306 of described light engine 104; With the light path system 305 that described light source 304 is connected, the light signal of 305 pairs of described light sources 304 of described light path system transmits; The imaging engine 306 be connected with described light path system 305 with described microprocessor 303 simultaneously, described imaging engine 306 receives the picture signal of described microprocessor 303 outputs and the light signal of described light path system 305 transmission, convert the picture signal of reception and light signal to image, then export; With the camera lens 307 that described imaging engine 306 is connected, described camera lens 307 receives the image of described imaging engine 306 outputs, then exports; With the reflective mirror 308 that described camera lens 307 is connected, described reflective mirror 308 receives the image of described camera lens 307 outputs, and the image of reception is projected on described reflective viewing screen 102, shows.
It should be noted that, described picture signal can be vision signal more specifically, and vision signal and picture signal are the electric signal that carries image information.
The each several part of the orthogonal projection all-in-one in the present embodiment integrates, therefore, the projector distance that light engine 104 projects on reflective viewing screen 102 reduces greatly than prior art, the mounting distance of reflective viewing screen and projector reduces, in order to shorten to greatest extent projector distance, the demonstration image of projection is dispersed to greatest extent, the ultrashort burnt light engine of light engine 104 preferred employing, camera lens 307 preferably can be selected the aspheric mirror camera lens.The focal length of aspheric mirror camera lens is very short, real focal length is less than or equal to 5.18mm, can make light engine 104 in than short distance, carry out Projection Display, make the range of scatter of the light signal that light source 304 sends broader, and then human eye 311 to observe the visual angle that shows images wider, and institute to spread the image keystone distortion of exporting little.
In addition, reflective mirror 308 preferably can be set to aspheric mirror reflective mirror or the plane mirror with the corresponding design of aspheric mirror camera lens.
Traditional projection display technique can not be processed different audio-video source signals, video capability is only arranged, can not realize audio-frequency function, cause generally when using projector and display screen face to use, also need audio frequency apparatus is installed simultaneously, make traditional projection display technique have certain use limitation.
The orthogonal projection all-in-one that the present embodiment provides, sound module 105, DVB module 103 are integrated with light engine 104, by DVB module 103, realize the separating treatment of audio-video signal, sound module 105 is realized the function of output sound, light engine 104 is realized the function of image projection, make the orthogonal projection all-in-one, when video shows, voice output be arranged, without relying on again peripheral sound device can realize audio-frequency function.
Embodiment bis-
The present embodiment provides a kind of reflective viewing screen, comprising: substrate and cover the diffuse reflector on described substrate one side surface.
This diffuse reflector can carry out diffuse reflection to light, thereby makes the reflective viewing screen that the present embodiment provides have the visual angle wider than prior art.
Preferably, between described substrate and described diffuse reflector, comprising: cover the reflection horizon on described substrate surface and cover described reflection horizon and deviate from the diffusion layer on described substrate one side surface; Described diffuse reflector covers described diffusion layer to deviate from described substrate one side surface.
Concrete, its structure as shown in Figure 4, comprising: substrate 400; Cover described substrate 400 1 lateral reflection layers 401; Cover described reflection horizon 401 and deviate from the diffusion layer 402 on described substrate 400 1 side surfaces; Cover described diffusion layer 402 and deviate from the diffuse reflector 403 on described substrate 400 1 side surfaces.
In traditional projection display technique, applied display screen face can only produce the diffuse reflection effect to light, and the brightness of projected image is low, contrast is low, the GTG level is not obvious, be subjected to ambient light effects very large.Although and if adopt self luminous liquid crystal or plasma display can solve the problem of traditional display screen face, but be subjected to the restriction of display panel technology, the display size of liquid crystal or plasma display is difficult to reach the requirement that large-size screen monitors show, and liquid crystal or plasma display are owing to for autoluminescence, showing, so the self-radiating amount is large, big energy-consuming, installs and be subjected to regions and areas's restriction large.And the demand shown in order to meet large-size screen monitors, if adopt liquid crystal or the plasma display of large screen splicing system, on the one hand because the physical location that is subjected to piece affects, display effect is undesirable, show that the integral image consistance is poor, cost is high on the other hand, and later maintenance cost is too high.If adopt the display screen face of high-gain, because the projector distance of ultrashort Jiao's light engine is shorter, the luminance uniformity of projection lamp is limited, during the display screen face of light by high-gain, on the display screen face, show a speck owing to converging the effect meeting, solar effect appears, reduce the quality that shows image, and can cause the visual angle that shows image less.
The reflective viewing screen that the present embodiment provides arranges one deck diffusion layer 402 at diffuse reflector 403 towards a side of substrate 400, the side that this diffusion layer 402 deviates from substrate 400 has very high transmittance, as shown in Figure 5, the most of vertical or trend of projection ray 501 is perpendicular to reflective viewing screen incident, can be reflected smoothly the formula screen reflection, enter human eye 311, this part light is effective sunlight.
And ambient light 502 is from diffuse reflector 403 incidents of reflective viewing screen, because diffuse reflector 403 has as far as possible little reflecting rate, so ambient light 502 only has sub-fraction diffuse reflector 403 to reflect away, remaining most of ambient light 502 projects on diffusion layer 402, because diffusion layer 402 has higher transmittance, and its outside surface is uneven, thereby only have a small amount of ambient light 502 to form just secondary reflection at diffusion layer 402 outside surfaces, most of ambient light 502 enters the reflection horizon 401 below it by diffusion layer 402.
In said process, diffusion layer 402 utilizes refractive index that ambient light 502 is converged towards central authorities, thereby increased the light that enters human eye, namely increased effective sunlight, and then reduced ambient light, so effectively raise gain and the noise immunity of reflective viewing screen, demonstration brightness of image and the more traditional display screen face of contrast of reflective viewing screen are improved greatly, the GTG level becomes more obvious simultaneously, shown image reaches contrast and the gradation sense that colored liquid crystal television just can have easily, and the global consistency of image is high a lot of than the liquid crystal of splicing system or plasma display.
After ambient light 502 enters into following reflection horizon 401 by diffusion layer 402, this reflection horizon 401 produces the certain effect of converging and preliminary diffuse reflection effect by the interaction energy of refractive index to light, make ambient light 502 form the diffuse reflection state, because diffusion layer 402 has high as far as possible reflecting rate towards the surface of substrate 400 1 sides, so most of ambient light 502 can pass diffusion layer 402 again, through outermost diffuse reflector 403, pass, diffuse reflection effect through diffuse reflector 403, effectively eliminated while using ultrashort burnt light engine projection, the solar effect occurred on the display screen face of high-gain, and increased greatly visual angle, visual angle can be reached more than 120 °.
Visible, the reflective viewing screen that the present embodiment provides, by sandwich construction is set, makes reflective viewing screen have the advantages such as anti-surround lighting, contrast is high, the GTG level is obvious, visual angle is broad; In addition, because reflective viewing screen is that projection shows, self not power consumption, so the liquid crystal or the plasma screen that show with respect to traditional autoluminescence, energy consumption is low, and environmental protection is radiationless.
In the present embodiment, described diffuse reflector 403, diffusion layer 402 and reflection horizon 401 preferably are the polymer composite layer, and each layer all configures according to different weight percentage.
Described substrate 400 can be selected different types of hard laminate, is preferably hard plastic board or honeycomb aluminum plate.
In order further to improve the display frame quality, it is grey that the present embodiment preferably can make the curtain face of reflective viewing screen, has enough gray scales, and reflecting rate is low, and further anti-surround lighting improves contrast and the stereovision of display frame.
Further, can be by the coating of the intermixture of electrostatic prevention be made in the polymer composite in diffuse reflector 403, diffusion layer 402 and reflection horizon 401, play the effect of electrostatic prevention, thereby avoided the tiny foreign material such as dust to be adsorbed in the display screen face and affected the problem of display effect.
In order to increase the intensity of reflective viewing screen, each functional layer of protection reflective viewing screen, described reflective viewing screen preferably can also comprise: the frame that surrounds described diffuse reflector 403, diffusion layer 402, reflection horizon 401 and substrate 400 sides.
In addition; for diffuse reflector 403, diffusion layer 402 and the reflection horizon 401 of protecting reflective viewing screen; reflective viewing screen preferably can also comprise: cover described diffuse reflector 403 and deviate from the protective seam on described substrate 400 1 side surfaces; this protective seam is the polymer composite layer; transmittance is higher, can effectively prevent being scratched or polluting of reflective viewing screen curtain face.
It should be noted that, the reflective viewing screen that the present embodiment provides can be applied to the orthogonal projection all-in-one that the utility model embodiment mono-provides, but also can be applied to the projection display equipment of other type, does not do restriction at this present embodiment.
Although the utility model discloses as above with preferred embodiment, yet not in order to limit the utility model.Any those of ordinary skill in the art, do not breaking away from technical solutions of the utility model scope situation, all can utilize method and the technology contents of above-mentioned announcement to make many possible changes and modification to technical solutions of the utility model, or be revised as the equivalent embodiment of equivalent variations.Therefore, every content that does not break away from technical solutions of the utility model,, all still belong in the scope of technical solutions of the utility model protection any simple modification made for any of the above embodiments, equivalent variations and modification according to technical spirit of the present utility model.
Claims (17)
1. an orthogonal projection all-in-one, is characterized in that, comprising:
Casing;
Be arranged on described casing outside, and be fixed on the reflective viewing screen on described casing housing;
Be fixed on the light engine on described casing housing.
2. orthogonal projection all-in-one according to claim 1, is characterized in that, also comprises:
Be arranged on the audio-video signal interface on described casing;
Be fixed on described casing housing, and the DVB module be connected with described audio-video signal interface, described DVB module is connected with described light engine;
Be fixed on described casing housing, and the sound module be connected with described DVB module.
3. orthogonal projection all-in-one according to claim 2, is characterized in that, described light engine, DVB module and sound module all are positioned at described casing inside.
4. orthogonal projection all-in-one according to claim 2, is characterized in that, described light engine and DVB module all are positioned at described casing inside, and described sound module is positioned at described casing outside.
5. according to the described orthogonal projection all-in-one of claim 2～4 any one, it is characterized in that, described DVB module comprises:
The audio-video signal separation vessel be connected with described audio-video signal interface;
The video signal preprocessor be connected with described audio-video signal separation vessel.
6. orthogonal projection all-in-one according to claim 5, is characterized in that, described sound module comprises:
The audio signal processor be connected with described audio-video signal separation vessel;
The loudspeaker that are connected with described audio signal processor.
7. orthogonal projection all-in-one according to claim 6, is characterized in that, described light engine comprises:
The microprocessor be connected with described video signal preprocessor;
Light source;
The light path system be connected with described light source;
The imaging engine be connected with described light path system with described microprocessor simultaneously;
The camera lens be connected with described imaging engine;
The reflective mirror be connected with described camera lens.
8. orthogonal projection all-in-one according to claim 7, is characterized in that, described light engine is ultrashort burnt light engine.
9. a reflective viewing screen, be applied to the described orthogonal projection all-in-one of claim 1～8 any one, it is characterized in that, comprising: substrate and cover the diffuse reflector on described substrate one side surface.
10. reflective viewing screen according to claim 9, is characterized in that, comprising between described substrate and described diffuse reflector: cover the reflection horizon on described substrate surface and cover described reflection horizon and deviate from the diffusion layer on described substrate one side surface; Described diffuse reflector covers described diffusion layer to deviate from described substrate one side surface.
11. reflective viewing screen according to claim 10, is characterized in that, described reflective viewing screen is grey.
12. reflective viewing screen according to claim 10, is characterized in that, described diffuse reflector, diffusion layer and reflection horizon are the polymer composite layer.
13. reflective viewing screen according to claim 10, is characterized in that, described substrate is hard laminate.
14. reflective viewing screen according to claim 13, is characterized in that, described substrate is hard plastic board or honeycomb aluminum plate.
15. according to the described reflective viewing screen of claim 10～14 any one, it is characterized in that, described reflective viewing screen also comprises: the frame that surrounds described diffuse reflector, diffusion layer, reflection horizon and substrate side.
16. reflective viewing screen according to claim 10, is characterized in that, described reflective viewing screen also comprises: cover described diffuse reflector and deviate from the protective seam on described substrate one side surface.
17. reflective viewing screen according to claim 16, is characterized in that, described protective seam is the polymer composite layer.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202206866U CN203311153U (en) | 2013-04-26 | 2013-04-26 | Positive projection integrated machine and reflective screen |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013202206866U CN203311153U (en) | 2013-04-26 | 2013-04-26 | Positive projection integrated machine and reflective screen |
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| CN203311153U true CN203311153U (en) | 2013-11-27 |
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| CN2013202206866U Expired - Fee Related CN203311153U (en) | 2013-04-26 | 2013-04-26 | Positive projection integrated machine and reflective screen |
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Effective date of registration: 20160202 Address after: 610000 Sichuan city of Chengdu province high tech Zone Tianshun No. 51 North Street, 1 floor Patentee after: HONORESTS INC. Address before: 610041 Sichuan high tech Zone, Tianfu Avenue, north section of the No. high tech incubator building, room 6, building 119, room 1480 Patentee before: AF DRAGON ELECTRONICS CO., LTD. |
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Granted publication date: 20131127 Termination date: 20160426 |