CN101725916A - Three-primary color LED light source device and liquid crystal projection equipmentusing same - Google Patents
Three-primary color LED light source device and liquid crystal projection equipmentusing same Download PDFInfo
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- CN101725916A CN101725916A CN200810216824A CN200810216824A CN101725916A CN 101725916 A CN101725916 A CN 101725916A CN 200810216824 A CN200810216824 A CN 200810216824A CN 200810216824 A CN200810216824 A CN 200810216824A CN 101725916 A CN101725916 A CN 101725916A
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Abstract
The invention discloses a three-primary color LED light source device comprising a base plate, a surface light-emitting element, a light homogenized bar and a condensing lens set. The surface light-emitting element is arranged on the base plate and used for emitting three different colors of light in time sequence. The light homogenized bar is connected with the base plate, covers the surface light-emitting element, and is used for projecting the three different colors of light repeatedly and mixing the three different colors of light into homogeneous white light. The condensing lens set is arranged on an image output optical path of the light homogenized bar, and is used for converging, reshaping and further homogenizing the received white light in order to reduce the divergence angle of the white light. In the light source device, the three colors of light are mixed into the white light which has a small divergence angle and good homogeneity through the light homogenized bar and the condensing lens set in order to meet demands for small-angle incidence of illumination light on liquid crystal image-forming liquid crystal panels. Furthermore, the invention also provides a liquid crystal projection device which uses the three-primary color LED light source device.
Description
Technical field
The present invention relates to lighting source and projection display technique, relate in particular to a kind of three primary colors LED light source device and use the liquid crystal projecting of this device.
Background technology
(Light Emitting Diode LED) is a kind of gallium phosphide (GAP), gallium nitride semi-conducting material luminescent devices that make, that can directly electric energy be converted into luminous energy such as (GAN) to light emitting diode.When its inside had certain electric current to pass through, it will be luminous.Because characteristics such as Toxic matter are grown, are quick on the draw, are not contained to LED luminous efficiency height, life-span, make its application more and more widely, especially white light LEDs, be considered to continue incandescent lamp, the later third generation lighting source of fluorescent lamp are widely used in liquid crystal projection apparatus, mobile phone backlight, display screen etc.At present, the implementation method of white light LEDs has multiple, and wherein a kind of method is that multiple monochromatic light mixes the generation white light; for example: the white light LEDs that uses the three-wavelength type of ruddiness, green glow and blue-light LED chip simultaneously; yet its uniformity is relatively poor, and the light that projects screen also usually can be offset.
Publication number in the Chinese invention patent ublic specification of application " CN1310790 " name is called " with the lighting apparatus of light emitting diode " and discloses a kind of light source, comprises a light emitting diode matrix and a reflecting drum.Wherein, light emitting diode matrix comprises at least one light emitting diode, is used for launching being each light of multiple color.Reflecting drum has into perforation, goes into the perforation hole of perforation greater than this, the surrounding wall of the reflection of extending between this two hole, and the optical axis that extends between this two hole of these wall central authorities.Light emitting diode matrix is set in the perforation, and surrounding wall is gone into perforation from this and diverged to perforation hole, and this surrounding wall, from optical axis, has the shape of evagination.This surrounding wall is used to make light reflection and the mixing from this light emitting diode matrix.Yet, the lighting apparatus of this structure, uniformity is relatively poor, influences the projection quality of liquid crystal projecting, and the angle of divergence of mixed emergent ray is bigger, is difficult to satisfy the requirement of imaging liquid crystal panel to the incident of irradiates light low-angle.
Summary of the invention
In view of this, must provide a kind of brightness even, can satisfy the three primary colors LED light source device of imaging liquid crystal panel illumination light low-angle incident requirement.
In addition, also need provide a kind of simple in structure, brightness is even, the liquid crystal projecting that size is little.
A kind of three primary colors LED light source device comprises substrate, planar light emitting, equal optical wand and collector lens group.Wherein, planar light emitting is arranged on the described substrate, is used for the light of three kinds of different colours of sequential emission.Optical tunnel is connected with described substrate and covers described planar light emitting, is used for repeatedly reflecting the light of described three kinds of different colours and is mixed into uniform white light.The collector lens group is arranged on the described optical tunnel image output light path, is used to assemble, shaping and the further received white light of homogenising, reduces its angle of divergence.
Above-mentioned three primary colors LED light source device, wherein: described equal optical wand is a hollow structure, has into perforation and perforation hole, and its sidewall is coated with high reflecting material, and described area of going into perforation is not less than the area of described perforation hole.
Above-mentioned three primary colors LED light source device, wherein: described equal optical wand is rectangular shape, cylindrical shape, truncated conical shape or horn shape.
Above-mentioned three primary colors LED light source device, wherein: the shape of cross section of described equal optical wand is a rectangle, and this evenly excellent incident hole area is greater than the perforation hole area.
Above-mentioned three primary colors LED light source device, wherein: described collector lens group is a compound parabolic concentrator, and its light incident place is provided with depressed part, and the incident hole area of the area of this depressed part and described equal optical wand about equally.
Above-mentioned three primary colors LED light source device, wherein: described compound parabolic concentrator and described equal optical wand engagement connection; Adopt the mode of engagement connection, help making whole light source compact conformation volume little, satisfying the needs of projector equipment microminiaturization, and, guarantee that compound parabolic concentrator receives light fully completely, further improves the utilization rate of luminous energy.
Above-mentioned three primary colors LED light source device, wherein: the material of described compound parabolic concentrator is plastics, its outer cross sectional shape is oval or circular.
Above-mentioned three primary colors LED light source device, wherein: described planar light emitting is four luminescence chips of square arrangement: a red light-emitting diode chip, a blue LED chip and two green light LED chips that the diagonal angle is arranged.
Above-mentioned three primary colors LED light source device, wherein: described collector lens group is a plurality of tactic glass lens.
A kind of liquid crystal projecting comprises polarizing beam splitter, little liquid crystal display, projecting lens and above-mentioned three primary colors LED light source device.Polarizing beam splitter is used for non-polarized light is converted into polarised light.Liquid crystal display is used for received polarised light is modulated, and is converted to another polarised light vertical with this polarised light, and makes this another polarised light carry image information.Projecting lens is used to receive another polarised light that carries image information.The three primary colors LED light source device is used to export described non-polarized light.
Above-mentioned liquid crystal projecting, wherein: described little liquid crystal display is the single chip liquid crystal panel, is arranged at a non-adjacent side of described polarizing beam splitter and three primary colors LED light source device.
Above-mentioned liquid crystal projecting, wherein: described little liquid crystal display is two liquid crystal panels, is arranged at respectively on the adjacent two sides of described polarizing beam splitter.
Three primary colors LED light source device of the present invention, the light of three kinds of different colours that the planar light emitting sequential is sent, repeatedly reflect by even rod, blend the white light of good uniformity, convergence and shaping through the collector lens group, little, the good uniformity of the output angle of divergence, the hot spot that collimation is good improve the utilization rate of luminous energy, satisfy the requirement of imaging liquid crystal panel to the incident of illumination light low-angle.In addition, use the liquid crystal projecting of above-mentioned LED light source device, its optical system design process only relates to LED light source device, and polarizing beam splitter, little liquid crystal display and projecting lens do not relate to other optics, simple in structure, brightness is even, efficiency of light energy utilization height, and, size is little, and production cost is lower.
Description of drawings
In order to be easy to explanation, the present invention is done to describe in detail by following preferred embodiment and accompanying drawing.
Fig. 1 is the perspective view of the three primary colors LED light source device of first embodiment of the invention;
Fig. 2 is the structural representation of the planar light emitting of Fig. 1;
Fig. 3 is the perspective view of the three primary colors LED light source device of second embodiment of the invention;
Fig. 4 is the perspective view of the three primary colors LED light source device of third embodiment of the invention;
Fig. 5 a is the perspective view of the liquid crystal projecting of first embodiment of the invention;
Fig. 5 b is the planar structure schematic diagram of liquid crystal projecting of the present invention;
Fig. 5 c is little liquid crystal display Illumination Distribution figure;
Fig. 5 d is the angle energy profile of liquid crystal projecting output;
Fig. 6 is the perspective view of the liquid crystal projecting of second embodiment of the invention.
The specific embodiment
The present invention is further illustrated below in conjunction with the drawings and specific embodiments.
Figure 1 shows that the perspective view of three primary colors LED light source device of the present invention, it comprises substrate 10 (consulting Fig. 2), planar light emitting 20, optical tunnel 30 and collector lens group 40.Wherein, planar light emitting 20 is arranged on the substrate 10, is used for the light of three kinds of different colours of sequential emission.Evenly rod 30 is connected with substrate 10, and covers planar light emitting 20, is used for repeatedly reflecting the light of these three kinds of different colours and is mixed into uniform white light.Collector lens group 40 is arranged on optical tunnel 30 image output light path, is used to assemble, shaping and the further received white light of homogenising, reduces the evenly angle of divergence of excellent 30 emergent lights.
In the present embodiment, the heat dissipating layer (not indicating among the figure) that substrate 10 comprises circuit layer (not indicating among the figure) and is arranged at the circuit layer lower surface.
Planar light emitting 20 is electrically connected with circuit layer on the substrate 10, is used to send 180 ° light.In the present embodiment, the light of three kinds of different colours of planar light emitting 20 sequential emission, for example: ruddiness, blue light and green glow.Consult Fig. 2, this planar light emitting 20 is four luminescence chips of square arrangement: red light-emitting diode chip R, a blue LED chip B and two green light LED chip G1, G2 that the diagonal angle is arranged.And red light-emitting diode chip R, green light LED chip G1, G2 and blue LED chip B are connected with the controller (not shown), and the sequential that is used for control chip is luminous.Each working frequency of chip is set by the required illumination parameter of liquid crystal panel, shows best colour vision effect to reach.
In other embodiment of the present invention, planar light emitting 20 also can be a plurality of luminescence chips of alternate manner layout, as long as satisfy the light that sends three kinds of different colours.
All optical wand 30 is a hollow structure, has into perforation and perforation hole, and its sidewall is coated with high reflecting material, and its material is a glass.In the present embodiment, the area of going into perforation is not less than the area of perforation hole, and the area of promptly going into perforation is to equal (consulting Fig. 1, Fig. 3) or greater than the area of (consulting Fig. 4) perforation hole.In addition, evenly rod 30 is arranged at the surface of substrate 10 by the mode of pasting, be integrated into one with this substrate 10 and planar light emitting 20, whole light source compact conformation volume is little like this, to satisfy the needs of projector equipment microminiaturization, and, guarantee that evenly rod 30 receives light fully completely, improve the utilization rate of luminous energy.The light of three kinds of different colours that sent by planar light emitting 20 after the repeatedly reflection of even excellent 30 sidewalls, is mixed into the uniform white light outgoing.
In other embodiment of the present invention, evenly rod 30 also can be connected with substrate 10 by the mode of clamping, and evenly rod 30 also can be solid construction, passes through total internal reflection principle, also can be mixed into the uniform white light outgoing to the light of three kinds of different colours that send by planar light emitting 20.
In the present embodiment, all optical wand 30 is a rectangular shape, and its shape of cross section is a rectangle, and the incident hole area equals the perforation hole area.
In other embodiment of the present invention, evenly rod 30 also can be cylindrical shape, repeats no more here.
Therefore, three primary colors LED light source device of the present invention, the light of three kinds of different colours that planar light emitting 20 sequential are sent, by even excellent more than 30 reflections, blend the white light of good uniformity, through the convergence and the shaping of collector lens group 40, little, the good uniformity of the output angle of divergence, the hot spot that collimation is good, improve the utilization rate of luminous energy, satisfy of the requirement of imaging liquid crystal panel the incident of illumination light low-angle.
Fig. 3 is the perspective view of the three primary colors LED light source device of second embodiment of the invention.The structure of this three primary colors LED light source device and three primary light source device shown in Figure 2 is basic identical, difference is, collector lens group 41 shown in Figure 3 is a plurality of tactic glass lens, in the present embodiment, the quantity of glass lens is 3, can progressively reduce the evenly angle of divergence of excellent 31 emergent lights.180 ° light is after even rod 30 and collector lens group 41, and its angle of divergence is less than-15 °～+ 15 °.Wherein, the plane of incidence area of glass lens that closes on even excellent 31 perforation hole places is used for receiving fully completely light more than or equal to the even perforation hole area of rod 31.
In other embodiment of the present invention, the quantity of glass lens also can one, two, perhaps more than three, repeats no more here.
Fig. 4 is the perspective view of the three primary colors LED light source device of third embodiment of the invention.The structure of this three primary colors LED light source device and three primary light source device shown in Figure 2 is basic identical, difference is that the shape of cross section of equal optical wand 32 shown in Figure 4 is a rectangle, and vertical sectional shape is trapezoidal, promptly this optical tunnel 32 is the trapezoid platform shape, and its incident hole area is greater than the perforation hole area.In the present embodiment, all the cross section of optical wand 32 is meant the cross section perpendicular to optical axis direction, and the longitudinal section is meant the cross section that is parallel to optical axis direction.
In other embodiment of the present invention, evenly the shape of cross section of rod 32 also can be for circular or oval, and promptly this optical tunnel 32 is truncated conical shape or horn shape, repeats no more here.
The perspective view of the liquid crystal projecting of Fig. 5 a first embodiment of the invention is consulted Fig. 5 b to Fig. 5 d simultaneously, and wherein, Fig. 5 b is the planar structure schematic diagram of liquid crystal projecting of the present invention; Fig. 5 c is little liquid crystal display Illumination Distribution figure; Fig. 5 d is the angle energy profile of output.This liquid crystal projecting comprises the three primary colors LED light source device, polarizing beam splitter 50, little liquid crystal display 60 and projecting lens 70 (consulting Fig. 5 b).Wherein, the three primary colors LED light source device is the three primary colors LED light source device of above-mentioned arbitrary embodiment, and this three primary colors LED light source device sends non-polarized light.
Polarizing beam splitter 50 is used for non-polarized light is converted into polarised light.In the present embodiment, polarizing beam splitter 50 is a cube shaped, form by two triangular prism gummeds, 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 50 also can be formed by other prism gummed, is converted into the polarised light outgoing as long as satisfy the non-polarized light of incident.
Little liquid crystal display 60 is used for received polarised light is modulated, and is converted to another polarised light vertical with this polarised light, and makes this another polarised light carry image information.In the present embodiment, little liquid crystal display is the single chip liquid crystal panel, is arranged at a non-adjacent side of polarizing beam splitter 50 and three primary colors LED light source device.When the polarised light that receives when little liquid crystal display 60 is the P polarised light,, the S polarised light that carries image information will be converted to through after the modulation of little liquid crystal display.
In other embodiment of the present invention, these little liquid crystal display 60 received polarised lights also can be the S polarised light, through after the modulation of little liquid crystal display 60, are converted to the P polarised light that carries image information.
When the polarised light that receives when little liquid crystal display 60 is the P polarised light, projecting lens 70 and little liquid crystal display 60 adjacent sides that are arranged at polarizing beam splitter 50, in other words, projecting lens 70 is arranged at respectively on the adjacent two sides of polarizing beam splitter 30 with little liquid crystal display 60.At this moment, projecting lens 70 is to be used to receive the S polarised light that carries image information.And the polarised light that receives when little liquid crystal display 60 is when being the S polarised light, and this projecting lens 70 and little liquid crystal display 60 opposing parallel are arranged at a side of polarizing beam splitter 30, are used to receive another polarised light that carries image information, i.e. the P polarised light.
Consult Fig. 5 c, more smooth at the energy of angular range between-15 °～+ 15 °, therefore, its uniformity is also better.
Consult Fig. 5 d, its abscissa and ordinate are respectively the length and width size of little liquid crystal display, and in the present embodiment, little liquid crystal display is the LCOS liquid crystal panel, as can be seen from the figure, the light of three primary colors LED light source device output is evenly distributed on the liquid crystal panel center.
Figure 6 shows that the structural representation of the liquid crystal projecting of second embodiment of the invention.The structure of the liquid crystal projecting shown in this liquid crystal projecting and Fig. 5 a is basic identical, and difference is that little liquid crystal display shown in Figure 6 is the two-piece type liquid crystal panel, is arranged at respectively on the adjacent two sides of polarizing beam splitter 50 '.The three primary colors LED light source device is launched uniform light and be divided into two bundle polarised lights behind polarizing beam splitter 50 ': S polarised light, P polarised light offer liquid crystal panel 61,62 respectively.Two liquid crystal panel output image light synthesize a branch of light again behind polarizing beam splitter 50 ', output to external screen from projection lens 70 '.
Therefore, in the liquid crystal projecting of the present invention, the three primary colors LED light source device launches that the angle of divergence is little, the white light of good uniformity is after the polarizing beam splitter beam split, offer little liquid crystal display, afterwards, little liquid crystal display modulates image light and outputs to external screen from projection lens, its optical system design process only relates to the three primary colors LED light source device, and polarizing beam splitter, little liquid crystal display and projecting lens do not relate to other optics, simple in structure, good uniformity, efficiency of light energy utilization height, and, size is little, and production cost is lower.
The specific embodiment of the above is a better embodiment of the present invention, be not to limit concrete practical range of the present invention with this, scope of the present invention comprises and is not limited to this specific embodiment, for example, all the area of going into perforation of optical wand also can be less than the area of perforation hole, as long as satisfy combining of this optical tunnel and collector lens group, can make that the light of three kinds of different colours that full light-emitting component sends is mixed to go out good uniformity, the white light that the angle of divergence is little gets final product.The equivalence variation that all shapes according to the present invention, structure are done all comprises in protection scope of the present invention.
Claims (12)
1. three primary colors LED light source device mainly comprises:
Substrate;
Planar light emitting is arranged on the described substrate, is used for the light of three kinds of different colours of sequential emission;
It is characterized in that described three primary colors LED light source device also comprises:
Optical tunnel is connected with described substrate and covers described planar light emitting, is used for repeatedly reflecting the light of described three kinds of different colours and is mixed into uniform white light; And
The collector lens group is arranged on the described optical tunnel image output light path, is used to assemble, shaping and the further received white light of homogenising, reduces its angle of divergence.
2. three primary colors LED light source device according to claim 1 is characterized in that, described equal optical wand is a hollow structure, has into perforation and perforation hole, and its sidewall is coated with high reflecting material, and described area of going into perforation is not less than the area of described perforation hole.
3. three primary colors LED light source device according to claim 1 and 2 is characterized in that, described equal optical wand is rectangular shape, cylindrical shape, truncated conical shape or horn shape.
4. three primary colors LED light source device according to claim 2 is characterized in that, the shape of cross section of described equal optical wand is a rectangle, and this evenly excellent incident hole area is greater than the perforation hole area.
5. three primary colors LED light source device according to claim 2, it is characterized in that, described collector lens group is a compound parabolic concentrator, and its light incident place is provided with depressed part, and the incident hole area of the area of this depressed part and described equal optical wand about equally.
6. three primary colors LED light source device according to claim 5 is characterized in that, described compound parabolic concentrator and described equal optical wand engagement connection.
7. three primary colors LED light source device according to claim 5 is characterized in that, the material of described compound parabolic concentrator is plastics, and its outer cross sectional shape is oval or circular.
8. three primary colors LED light source device according to claim 1 and 2, it is characterized in that described planar light emitting is four luminescence chips of square arrangement: a red light-emitting diode chip, a blue LED chip and two green light LED chips that the diagonal angle is arranged.
9. three primary colors LED light source device according to claim 1 and 2 is characterized in that, described collector lens group is a plurality of tactic glass lens.
10. liquid crystal projecting comprises:
Polarizing beam splitter is used for non-polarized light is converted into polarised light;
Little liquid crystal display is used for received polarised light is modulated, and is converted to another polarised light vertical with this polarised light, and makes this another polarised light carry image information;
Projecting lens is used to receive another polarised light that carries image information;
It is characterized in that described liquid crystal projecting also comprises according to any described three primary colors LED light source device in the claim 1 to 9, is used to export described non-polarized light.
11. a kind of liquid crystal projecting according to claim 10 is characterized in that, described little liquid crystal display is the single chip liquid crystal panel, is arranged at a non-adjacent side of described polarizing beam splitter and three primary colors LED light source device.
12. a kind of liquid crystal projecting according to claim 10 is characterized in that, described little liquid crystal display is two liquid crystal panels, is arranged at respectively on the adjacent two sides of described polarizing beam splitter.
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| Application Number | Priority Date | Filing Date | Title |
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| CN200810216824A CN101725916A (en) | 2008-10-10 | 2008-10-10 | Three-primary color LED light source device and liquid crystal projection equipmentusing same |
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| CN200810216824A CN101725916A (en) | 2008-10-10 | 2008-10-10 | Three-primary color LED light source device and liquid crystal projection equipmentusing same |
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| CN102959311A (en) * | 2010-09-24 | 2013-03-06 | 欧司朗有限公司 | Lighting module for light, light and method for mounting lighting module on light |
| CN103186027A (en) * | 2013-04-01 | 2013-07-03 | 电子科技大学 | Dodging device for micro-projector |
| CN104503103A (en) * | 2014-12-12 | 2015-04-08 | 常州市武进区半导体照明应用技术研究院 | Method for adjusting laser illumination and laser illuminating device |
| CN105090810A (en) * | 2014-05-16 | 2015-11-25 | 科宝智慧医疗科技（上海）有限公司 | Illumination device |
| CN106918865A (en) * | 2015-12-28 | 2017-07-04 | 无锡视美乐激光显示科技有限公司 | Guiding device and its projector equipment of application |
| CN107800478A (en) * | 2017-10-16 | 2018-03-13 | 唐义 | A kind of white light emission antenna for polychrome movement visible light communication |
| CN109164668A (en) * | 2018-09-30 | 2019-01-08 | 青岛海信激光显示股份有限公司 | A kind of laser light source and laser projection system |
| CN110307486A (en) * | 2018-03-20 | 2019-10-08 | 硅谷光擎 | Optical system for the lighting device based on multi-emitter LED |
| CN111025663A (en) * | 2019-12-24 | 2020-04-17 | 哈尔滨工程大学 | LED array light source and porous spray test system applying same |
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| CN113451876A (en) * | 2018-09-10 | 2021-09-28 | 深圳市绎立锐光科技开发有限公司 | Method for manufacturing light emitting device and light emitting device |
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| CN102959311A (en) * | 2010-09-24 | 2013-03-06 | 欧司朗有限公司 | Lighting module for light, light and method for mounting lighting module on light |
| CN102959311B (en) * | 2010-09-24 | 2016-10-12 | 欧司朗有限公司 | For the light emitting module of luminous body, luminous body and for the method that light emitting module is installed on luminous body |
| CN103186027A (en) * | 2013-04-01 | 2013-07-03 | 电子科技大学 | Dodging device for micro-projector |
| CN105090810A (en) * | 2014-05-16 | 2015-11-25 | 科宝智慧医疗科技（上海）有限公司 | Illumination device |
| CN104503103A (en) * | 2014-12-12 | 2015-04-08 | 常州市武进区半导体照明应用技术研究院 | Method for adjusting laser illumination and laser illuminating device |
| CN106918865A (en) * | 2015-12-28 | 2017-07-04 | 无锡视美乐激光显示科技有限公司 | Guiding device and its projector equipment of application |
| CN107800478A (en) * | 2017-10-16 | 2018-03-13 | 唐义 | A kind of white light emission antenna for polychrome movement visible light communication |
| CN110307486A (en) * | 2018-03-20 | 2019-10-08 | 硅谷光擎 | Optical system for the lighting device based on multi-emitter LED |
| US11899219B2 (en) | 2018-06-28 | 2024-02-13 | Fraen Corporation | Low-profile color-mixing lightpipe |
| CN113451876A (en) * | 2018-09-10 | 2021-09-28 | 深圳市绎立锐光科技开发有限公司 | Method for manufacturing light emitting device and light emitting device |
| CN113451876B (en) * | 2018-09-10 | 2022-03-22 | 深圳市绎立锐光科技开发有限公司 | Method for manufacturing light emitting device and light emitting device |
| CN109164668A (en) * | 2018-09-30 | 2019-01-08 | 青岛海信激光显示股份有限公司 | A kind of laser light source and laser projection system |
| WO2020063288A1 (en) * | 2018-09-30 | 2020-04-02 | 青岛海信激光显示股份有限公司 | Laser source and laser projection system |
| CN111025663A (en) * | 2019-12-24 | 2020-04-17 | 哈尔滨工程大学 | LED array light source and porous spray test system applying same |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20100609 |
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| C53 | Correction of patent for invention or patent application | ||
| CB02 | Change of applicant information |
Address after: Cui Jing Road Shenzhen City, Guangdong province 518118 Pingshan New District No. 35 No. 1 Building 6 East Applicant after: Butterfly Technology (Shenzhen) Limited Address before: 518055, 301, two, Fengyun technology building, Fifth Industrial Zone, North Ring Road, Shenzhen, Guangdong, Nanshan District Applicant before: Butterfly Technology (Shenzhen) Limited |