CN102456297B - Stacking LED display and the three-dimensional display based on LED technology - Google Patents
Stacking LED display and the three-dimensional display based on LED technology Download PDFInfo
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- CN102456297B CN102456297B CN201110218741.3A CN201110218741A CN102456297B CN 102456297 B CN102456297 B CN 102456297B CN 201110218741 A CN201110218741 A CN 201110218741A CN 102456297 B CN102456297 B CN 102456297B
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
- G02B30/20—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes
- G02B30/26—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the autostereoscopic type
- G02B30/27—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the autostereoscopic type involving lenticular arrays
Abstract
Stacking LED display and the three-dimensional display based on LED technology relate to display field.Stacking LED display, including LED array of display, LED array of display includes at least two group LED display sub array, the first LED display sub array and the second LED display sub array and is divided into front and back two-layer arrangement.Can effectively reduce the LED element arrangement quantity on same thickness, it is possible to effectively reduce production difficulty.The LED array of display of three-dimensional light-emitting diode display includes at least two group LED display sub array, the first LED display sub array and the second LED display sub array and is divided into the arrangement of upper and lower two-layer；Also including a LED-baseplate, LED display sub array is arranged in LED-baseplate, and LED-baseplate adopts transparent material, and LED-baseplate periphery is provided with transparent part.The LED element of LED array of display is provided simultaneously with three dimensions, it is possible to display stereoscopic picture plane.
Description
Technical field
The present invention relates to electronic applications, be specifically related to display field.
Background technology
The live and work that display screen is people brings a lot of convenience.Existing display screen has the display screen of cathode ray tube (CathodeRayTube), LCDs, LED display, plasma panel.In above-mentioned display screen, LED display has the advantages such as low, good, the fast response time of life-span length, color of cost, but the mechanism of LED display itself still has several drawbacks with production technology now, therefore can not meet the market demand.To such an extent as to the LED display with various good characteristic can not commercially obtain universal so far.
It addition, solid is shown increasingly stronger demand by people.The stereo display technique of present stage, mainly also needs to wearing stereoscopic glasses.Bore hole 3D technology, still very immature.
Summary of the invention
It is an object of the invention to provide a kind of stacking LED display, to solve above-mentioned technical problem.
The present invention also aims to provide a kind of three-dimensional light-emitting diode display, to solve above-mentioned technical problem.
The present invention also aims to provide a kind of method LED display sub array being embedded in described LED-baseplate.
The present invention also aims to provide a kind of aerial stereo imaging system based on stacking LED display.
The present invention can realize by the following technical solutions:
Stacking LED display, including LED array of display, it is characterised in that described LED array of display includes at least two group LED display sub array, namely the first LED display sub array, the second LED display sub array；
Described first LED display sub array and the second LED display sub array are divided into front and back two-layer arrangement, it is clear that can also be the mode of being arranged above and below.
LED array of display is divided into the LED element arrangement quantity that at least two tandem LED display sub array of group can effectively reduce on same thickness (or height), it is possible to effectively reduce production difficulty.
More in the LED display sub array number of plies, and time LED display sub array is respectively controlled, it is possible to achieve three-dimensional imaging.
The color of the LED that the color of the LED that described first LED display sub array adopts and described second LED display sub array adopt is inconsistent, in order to LED element controls and be easy to produce.
Described LED array of display includes three groups of LED display sub array, namely the first LED display sub array, the second LED display sub array, the 3rd LED display sub array, described first LED display sub array, the second LED display sub array, the 3rd LED display sub array are divided into three-layer arrangement from A-P.To reduce production difficulty further.
Described first LED display sub array, the second LED display sub array, the 3rd LED display sub array, the LED element of the different color being respectively adopted in three primary colours.So that showing coloury picture.
The LED element of the different color in three primary colours can be red, green, blue three-color LED element.Can also be the three primary colours utilizing other forms, adopt the LED element of the three primary colours constituting other forms.
Described stacking LED display also includes a LED-baseplate, and described LED array of display is arranged in described LED-baseplate.
May is that in being embodied as
Described LED-baseplate two sides is respectively equipped with electrode group, respectively front electrode group and opposite electrode group；Containing at least two front electrodes in described front electrode group, containing at least two opposite electrode in described opposite electrode group；LED element in described LED array of display connects front electrode and opposite electrode respectively.
Described LED-baseplate is transparency carrier, it is preferable that plastic, transparent substrate.
Adopt plastic, transparent substrate, be more prone to perforation relative to glass plate, it is simple to LED element lead-in wire or pin connect the electrode of another side through described LED-baseplate.
Described LED-baseplate is flexible plastic, transparent substrate.So that making described LED-baseplate have flexibility, it is possible to bend.
Described electrode adopts transparency electrode, or adopts tinsel, such as filamentary silver, copper wire etc..To ensure display quality.The transparency electrode that transparency electrode is preferably flexible.
Containing at least three front electrodes in described front electrode group, at least three front electrodes are arranged in described LED-baseplate front, and do not interlock；Containing at least three opposite electrode in described opposite electrode group, at least three opposite electrode are arranged in described LED-baseplate reverse side, and do not interlock；Described front electrode group is with described opposite electrode group, and at least two strip electrodes exist staggered in the longitudinal direction.
By making front electrode group interlock with opposite electrode group, produce intersection point, in order to connect LED element in point of intersection.By producing a large amount of intersection point, it is simple to connect a large amount of LED element.
Containing at least three front electrodes in described front electrode group, at least three front electrode parallel arrangements are in described LED-baseplate front；Containing at least three opposite electrode in described opposite electrode group, at least three opposite electrode parallel arrangements are at described LED-baseplate reverse side；Described front electrode and described opposite electrode exist staggered in the longitudinal direction.
By parallel arrangement front electrode and opposite electrode, make arranging rule, it is simple to design, production and software design.
Described LED-baseplate is provided with a through hole, and described LED element one end connects the electrode of one side, and the other end of described LED element connects the electrode of another side by described through hole.
In being embodied as it may also is that
Described LED-baseplate includes at least two-layer LED submounts, namely at least includes a LED submounts, the 2nd LED submounts；A described LED submounts is with described 2nd LED submounts in tandem；A described LED submounts adopts transparent material；Described first LED display sub array is arranged on a described LED submounts, and described second LED display sub array is arranged on described 2nd LED submounts.By arranging LED submounts as carrier for the LED display sub array of LED array of display, reduce production difficulty further, and allow to increase LED element arrangement density, to increase pixel.
Described LED-baseplate includes three layers LED submounts, namely a tandem LED submounts, the 2nd LED submounts, the 3rd LED submounts are included, a described LED submounts, the 2nd LED submounts are respectively adopted transparent material, and a described LED submounts, the 2nd LED submounts, the 3rd LED submounts are loaded with described first LED display sub array, the second LED display sub array, the 3rd LED display sub array respectively.While reducing production difficulty, allowing to increase LED element arrangement density, in order to show coloury picture.
The front of a described LED submounts is also covered with a transparent overcoat, in order to protect the first LED display sub array.
LED element in described LED array of display adopts adopting surface mounted LED element, or directly adopts LED wafer.So that reducing the area that LED element itself is shared.
The front of the described LED submounts being positioned at relative rear is furnished with rear electrode (conducting wire), the rear of the described LED submounts being positioned at relative front is furnished with front electrode (conducting wire), arrange before and after two pins of described LED element, be respectively connected to described rear electrode and front electrode.Overcoat can arrange front electrode.Front electrode and rear electrode constitute and control array, under the control of external control circuit and then control the luminous situation of each LED element, thus realizing the control to imaging pixel.So be conducive to simplifying the production technology controlling array.
Described front electrode adopts transparency electrode, in order to form better display effect.
Rear electrode on LED submounts described at least two adopts transparency electrode, in order to form better display effect.Rear electrode on last described LED submounts can not adopt transparency electrode.
One pin of described LED element is fixedly attached in rear electrode or front electrode, and another pin is pressed together on another in front electrode or rear electrode.To simplify production technology.
In two pins of described LED element, at least one is for having elastic pin, in order to keep good contact by the elastic rear electrode with pressing or front electrode.
Or carry out the rear electrode of pressing with described pin or front electrode adopts the transparency electrode with flexibility, in order to bonding processes carries out good contact with the pin of described LED element.
The LED submounts place in described LED element front is provided with an astigmatism block with astigmatism effect, so that the light that described LED element is launched is soft uniformly.
The area of described astigmatism block, more than the longitudinal section area of described LED element, so that the area of single pixel is bigger, and then improves display effect.
Described astigmatism block can be the part matsurface of LED submounts, it is also possible to be front electrode coarse on LED submounts or rear electrode.
LED submounts can adopt the transparent material of flexibility, to generate the stacking LED display with flexibility.In order to adapt to flexible demand, the electrode connecting LED element in LED array of display can adopt tinsel, such as filamentary silver, copper wire etc..
In specific design can: described LED-baseplate includes three layers LED submounts, namely a tandem LED submounts, the 2nd LED submounts, the 3rd LED submounts are included, a described LED submounts, the 2nd LED submounts are respectively adopted transparent material, and a described LED submounts, the 2nd LED submounts, the 3rd LED submounts are loaded with described first LED display sub array, the second LED display sub array, the 3rd LED display sub array respectively；
Described first LED display sub array, the second LED display sub array, the 3rd LED display sub array, the LED element of the different color being respectively adopted in three primary colours, and the LED element color in each group LED display sub array is consistent；
The front of a described LED submounts is also covered with a transparent overcoat；
The front of the described LED submounts being positioned at relative rear is furnished with rear electrode, the rear of the described LED submounts being positioned at relative front is furnished with front electrode, arrange before and after two pins of described LED element, it is respectively connected to described rear electrode and front electrode, the rear of described overcoat also is provided with front electrode, front electrode and rear electrode and constitutes control array；
Rear electrode on oneth LED submounts, the 2nd LED submounts adopts transparency electrode；Front electrode on a described LED submounts, the 2nd LED submounts, overcoat adopts transparency electrode；
One pin of described LED element is fixedly attached on one of them electrode in rear electrode or front electrode, and another pin is crimped on another electrode in front electrode or rear electrode.
It is also possible that described LED display sub array is embedded in described LED-baseplate.
Described LED-baseplate periphery can be cylindricality, spherical.
LED display sub array is embedded in the method in described LED-baseplate, it is characterised in that described LED submounts adopts the transparent thermosets not yet carrying out heat cure；
First each described LED display sub array is arranged on the described LED submounts of each layer, then described for each layer LED submounts is stacked, put in mould and be heated, carry out heat cure.And then obtain the stacking LED display that LED display sub array is embedded in described LED-baseplate.It is also contemplated that the curing materials of other cured form or curing mode, such as photocuring.
Three-dimensional light-emitting diode display, including LED array of display, it is characterised in that described LED array of display includes at least two group LED display sub array, namely the first LED display sub array, the second LED display sub array；Described first LED display sub array and the second LED display sub array are divided into the arrangement of upper and lower two-layer；
Also including a LED-baseplate, described LED display sub array is arranged in described LED-baseplate, and described LED-baseplate adopts transparent material.Because there is distance between the first LED display sub array and the second LED display sub array, it is possible to display stereo-picture.
LED-baseplate periphery is provided with transparent part.So that the three-dimensional image within light-emitting diode display of viewing from the side.
Can be considered as keeping flat multiple described stacking LED display stackings.Because LED submounts adopts transparent material, so when being watched by side, it can be seen that the LED element that at least two-layer being arranged above and below is luminous.The array that LED element is constituted has height, width and the degree of depth simultaneously, namely possesses three dimensions, it is possible to display stereoscopic picture plane.And shown stereoscopic picture plane is the stereoscopic picture plane being made up of actual luminous point, not by the stereoscopic picture plane that persistence of vision is formed, realistic strong, the advantage such as visual angle is big.The angle that light appears is had all to allow to see stereoscopic picture plane by each.
Described LED-baseplate includes at least two-layer LED submounts, namely at least includes a LED submounts, the 2nd LED submounts；A described LED submounts and described 2nd LED submounts are arranged above and below；A described LED submounts adopts transparent material, and described first LED display sub array is arranged on a described LED submounts, and described 2nd LED submounts adopts transparent material, and described second LED display sub array is arranged on described 2nd LED submounts.
Between described each layer LED submounts can by boning without shadow glue, to improve display quality.
Three LED display sub array arranged adjacent, and the LED element of the different color being respectively adopted in three primary colours, constitute a LED display sub array group；At least two LED display sub array group is arranged above and below.It is configured to show the three-dimensional light-emitting diode display of various rich colors.
External equipment obtains stereoscopic image by controlling the situation of lighting of each LED element in each LED display sub array respectively.
It is also possible that described LED display sub array is embedded in described LED-baseplate.Manufacture can adopt described method LED display sub array being embedded in described LED-baseplate, obtain the three-dimensional light-emitting diode display that LED display sub array is embedded in described LED-baseplate.
Described LED-baseplate periphery can be cylindricality, spherical.
The electrode of the pin connecting described LED element in described LED array of display can adopt transparency electrode, it would however also be possible to employ tinsel, such as copper wire, filamentary silver etc..Tinsel should be relatively thin in order to avoid affecting vision.
Aerial stereo imaging system based on stacking LED display, including a Spatial Imaging System, described Spatial Imaging System includes one as light source, and also including one will aloft form the photoimaging systems of picture from the light as light source, it is characterized in that, described picture light source adopts stacking LED display.Preferred described three-dimensional light-emitting diode display.
Described photoimaging systems includes a convergence optics that will carry out converging from the described light as light source, the surface combination of described three-dimensional light-emitting diode display and described convergence optics, the stereoscopic image that described three-dimensional light-emitting diode display produces is positioned at the imaging region that described convergence optics is determined.
By the surface combination by three-dimensional light-emitting diode display with convergence optics, reduce light refraction and reflection, and then image quality can be improved, additionally can also avoid between device because external force misplaces as far as possible.
Described convergence optics adopts a concave surface to converge device, and described three-dimensional light-emitting diode display is positioned at described concave surface and converges the concave surface of device.And it is corresponding that the peripheral structure of three-dimensional light-emitting diode display converges device inner surface with described concave surface, and both combine closely.The viewing area of described three-dimensional light-emitting diode display is positioned at described concave surface and converges near device axis.So that forming image quality aerial three dimensional image preferably.
Described convergence optics adopts two concave surfaces to converge device, and two described concave surfaces converge device and relatively fasten, and described light-emitting diode display converges between device at two described concave surfaces；Concave surface described at least one of which converges bottom device and is provided with light-transmitting opening, in order to beam projecting, aloft forms picture.
Described convergence optics adopts a plus lens, described three-dimensional light-emitting diode display to be positioned at described plus lens side, and described plus lens is directly produced on described three-dimensional light-emitting diode display.So that forming image quality aerial three dimensional image preferably.
Described photoimaging systems can also be one based on the air suspension imaging system of spectroscope imaging, is positioned at the spectroscope group above cabinet including a cabinet and one, and described light-emitting diode display is arranged in the described cabinet below described spectroscope group, as light source.
Accompanying drawing explanation
Fig. 1 is a kind of STRUCTURE DECOMPOSITION schematic diagram of stacking LED display.
Fig. 2 is the part-structure decomposing schematic representation of three-dimensional light-emitting diode display.
Fig. 3 is the overall structure schematic diagram of three-dimensional light-emitting diode display.
Fig. 4 is the part-structure schematic diagram of the aerial stereo imaging system based on stacking LED display.
Fig. 5 is the STRUCTURE DECOMPOSITION schematic diagram that stacking LED display LED-baseplate two sides is respectively equipped with electrode group.
Detailed description of the invention
The technological means, the creation characteristic that realize for the present invention, reach purpose and effect and be easy to understand, below in conjunction with being specifically illustrating, the present invention is expanded on further.
With reference to Fig. 1, stacking LED display, including LED array of display, LED array of display includes at least two group LED display sub array, i.e. first LED display sub array the 11, second LED display sub array 12.First LED display sub array 11 and the second LED display sub array 12 are divided into front and back two-layer arrangement, it is clear that can also be the mode of being arranged above and below.LED array of display is divided into the LED element arrangement quantity that at least two tandem LED display sub array of group can effectively reduce on same thickness (or height), it is possible to effectively reduce production difficulty.LED display sub array can also be allowed to be embedded in LED-baseplate.LED-baseplate periphery can be cylindricality, spherical.
LED element in LED array of display adopts adopting surface mounted LED element, or directly adopts LED wafer.So that reducing the area that LED element itself is shared.The color of the LED element that the color of the LED element that the first LED display sub array 11 adopts and the second LED display sub array 12 adopt is inconsistent.This design can so that LED element controls and is easy to produce.
In order to produce the color enriched, in actual production, LED array of display can adopt three groups of LED display sub array, namely from first LED display sub array the 11, second LED display sub array the 12, the 3rd LED display sub array 13 of A-P hierarchal arrangement.First LED display sub array the 11, second LED display sub array the 12, the 3rd LED display sub array 13, the LED element of the different color being respectively adopted in three primary colours, the LED element color in each group LED display sub array is preferably consistent.So that showing coloury picture.The LED element of the different color in three primary colours can be red, green, blue three-color LED element.Can also be the three primary colours utilizing other forms, adopt the LED element of the three primary colours constituting other forms.
Stacking LED display also includes LED-baseplate, and LED array of display is arranged in LED-baseplate.
May is that in being embodied as
With reference to Fig. 5, LED-baseplate 102 two sides is respectively equipped with electrode group, respectively front electrode group 103 and opposite electrode group 104.Containing at least two front electrodes in front electrode group 103, containing at least two opposite electrode in opposite electrode group.LED element in LED array of display connects front electrode and opposite electrode respectively.
Situation is lighted by what control that the electromotive force situation of front electrode and opposite electrode accurately controls each LED element.By electrode group being arranged on LED-baseplate 102 two sides, it is to avoid two arrays of electrodes because the staggered and situation of short circuit occur when forming array, thus in reducing design and producing, electrode group arrangement difficulty.LED-baseplate 102 is placed with the LED element adopting the different color in three primary colours.So that display different color.
LED-baseplate 102 can adopt transparency carrier, it is preferable that plastic, transparent substrate.Adopt plastic, transparent substrate, be more prone to perforation relative to glass plate, it is simple to LED element lead-in wire or pin connect the electrode of another side through described LED-baseplate 102.
Further, the plastic, transparent substrate that LED-baseplate 102 is preferably flexible, in order to make described LED-baseplate have flexibility, it is possible to bend.Electrode adopts transparency electrode, or adopts tinsel, such as filamentary silver, copper wire etc., to ensure display quality.The transparency electrode that transparency electrode is preferably flexible.
Containing at least three front electrodes in front electrode group 103, at least three front electrodes are arranged in LED-baseplate 102 front, and do not interlock.Containing at least three opposite electrode in opposite electrode group 104, at least three opposite electrode are arranged in LED-baseplate 102 reverse side, and do not interlock.Front electrode group 103 is with opposite electrode group 104, and at least two strip electrodes exist staggered in the longitudinal direction.By making front electrode group 103 interlock with opposite electrode group 104, produce intersection point, in order to connect LED element in point of intersection.By producing a large amount of intersection point, it is simple to connect a large amount of LED element.Do not contact by making front electrode group 103 staggered with opposite electrode group 104.
Further, containing at least three front electrodes in front electrode group 103, at least three front electrode parallel arrangements are in described LED-baseplate 102 front.Containing at least three opposite electrode in opposite electrode group 104, at least three opposite electrode parallel arrangements are at LED-baseplate 102 reverse side.Front electrode and opposite electrode exist staggered in the longitudinal direction.By parallel arrangement front electrode, and opposite electrode, make arranging rule, it is simple to design, production and software design.
It may be that LED-baseplate 102 is provided with a through hole, opposite electrode extends to LED-baseplate 102 front by through hole, and forms junction point.LED element is positioned at LED-baseplate 102 front, connects front electrode and junction point respectively.
It is also possible that LED-baseplate 102 is provided with a through hole, front electrode extends to LED-baseplate 102 reverse side by through hole, and forms junction point.LED element is positioned at LED-baseplate 102 reverse side, connects opposite electrode and junction point respectively.LED-baseplate 102 is provided with the bloomings such as diffusion barrier.LED element is positioned at LED-baseplate 102 reverse side, and the light sent is received by human eye after blooming, to form the picture of good quality.
It is also possible that LED-baseplate 102 is provided with a through hole, LED element one end connects the electrode of one side, and the other end of described LED element connects the electrode of another side through described through hole.A LED element can take alone a through hole, it is also possible to be that 2～4 LED element take a through hole jointly.
It is also possible that LED-baseplate 102 is provided with a through hole, LED element is embedded in through hole, and the two ends of LED element connect the double-edged electrode of LED-baseplate respectively.
Also including at least one overcoat, overcoat covers LED-baseplate 102 front, to protect LED-baseplate 102 and LED element.
Design for overcoat can have below scheme:
(1) overcoat can adopt flexible plastic sheet, in order to makes lattice LED display screen have flexibility.
(2) LED-baseplate 102 obverse and reverse has been covered each by flexible transparent plastic plate.Make tow sides can appreciate display picture.
(3) overcoat can adopt hard transparent plate, such as hard plastic board or glass plate.To make LED-baseplate 102 and LED element be fixed, make lattice LED display screen keep definite shape, and play a good protection.
(4) LED-baseplate 102 obverse and reverse has been covered each by hard transparent plate.Make tow sides can appreciate display picture.
In being embodied as it may also is that
With reference to Fig. 1, LED-baseplate includes at least two-layer LED submounts, namely at least includes LED submounts the 21, a 2nd LED submounts 22.In tandem, a LED submounts 21 adopts transparent material for oneth LED submounts 21 and the 2nd LED submounts 22.First LED display sub array 11 is arranged on a LED submounts 21, and the second LED display sub array 12 is arranged on the 2nd LED submounts 22.By arranging LED submounts as carrier for the LED display sub array of LED array of display, reduce production difficulty further, and allow to increase LED element arrangement density, to increase pixel.
In order to produce the color enriched, in actual production, LED-baseplate can adopt three layers LED submounts, i.e. tandem LED submounts the 21, the 2nd LED submounts the 22, a 3rd LED submounts 23.Oneth LED submounts the 21, the 2nd LED submounts 22 is respectively adopted transparent material.Oneth LED submounts the 21, the 2nd LED submounts the 22, the 3rd LED submounts 23 is loaded with first LED display sub array the 11, second LED display sub array the 12, the 3rd LED display sub array 13 respectively.The front of the oneth LED submounts 21 is also covered with a transparent overcoat 3, in order to protect the first LED display sub array 11.While reducing production difficulty, allowing to increase LED element arrangement density, in order to show coloury picture.
The front being positioned at the LED submounts at relative rear is furnished with rear electrode 41 (conducting wire), and the rear being positioned at the LED submounts in relative front is furnished with front electrode 42 (conducting wire).Arrange before and after two pins of LED element, be respectively connected to rear electrode and front electrode.Overcoat can arrange front electrode 42.Front electrode 42 and rear electrode 41 constitute and control array, under the control of external control circuit and then control the luminous situation of each LED element, thus realizing the control to imaging pixel.So be conducive to simplifying the production technology controlling array.Front electrode 42 all adopts transparency electrode, and the rear electrode on LED submounts the 11, a 2nd LED submounts 12 adopts transparency electrode, in order to form better display effect.Rear electrode 41 on 3rd LED submounts 23 can not adopt transparency electrode.
In order to reduce production difficulty further, a pin of LED element is fixedly attached to rear electrode 41 (or front electrode), and another pin is crimped on front electrode 42 (or rear electrode), to simplify production technology.In order to ensure good electrical contact, in two pins of LED element, at least one is for having elastic pin, in order to keep good contact by the elastic rear electrode 41 with pressing or front electrode 42.Or carry out the rear electrode of pressing with the pin of LED element or front electrode adopts and has flexible or elastic transparency electrode, in order to bonding processes carries out good contact with the pin of LED element.
LED submounts can adopt the transparent material of flexibility, to generate the stacking LED display with flexibility.In order to adapt to flexible demand, the electrode connecting LED element in LED array of display can adopt tinsel, such as filamentary silver, copper wire etc..
The LED submounts place in LED element front is provided with the astigmatism block 51 with astigmatism effect, so that the light that LED element is launched is soft uniformly.The area of astigmatism block 51, more than the longitudinal section area of LED element, so that the area of single pixel is bigger, and then improves display effect.Astigmatism block 51 can be the part matsurface that LED submounts produces, it is also possible to be the front electrode on LED submounts or the matsurface produced on rear electrode.
LED element in each LED display sub array tandem can overlapping arrangement, it is also possible to dislocation arrangement.LED element can overlapping arrangement time, the area of astigmatism block 51 is more than the longitudinal section area of LED element, it is possible to is prevented effectively from the LED element in front and the light that the LED element at rear produces is caused blocks.Additionally astigmatism block 51 can play the effect that three primary colours are mixed.The area of astigmatism block 51 can be that area incrementally increases from front to back, to avoid blocking.The area of astigmatism block 51 can be that area progressively reduces from front to back, to promote three primary colours are mixed.
The method being embedded in described LED-baseplate by LED display sub array is, LED submounts adopts the thermosets not yet carrying out heat cure.This thermosets should be transparent material after heat cure supplies.First each LED display sub array is arranged on each layer LED submounts, then each layer LED submounts is stacked, put in mould and be heated, carry out heat cure.And then obtain the stacking LED display that LED display sub array is embedded in LED-baseplate.So the gap between the LED submounts of LED-baseplate can reduce, and even disappears.It is also contemplated that the curing materials of other cured form or curing mode, such as photocuring.
With reference to Fig. 2, three-dimensional light-emitting diode display, including LED array of display, LED array of display includes at least two group LED display sub array, i.e. first LED display sub array the 11, second LED display sub array 12.First LED display sub array 11 and the second LED display sub array 12 are divided into the arrangement of upper and lower two-layer.Also including a LED-baseplate, LED display sub array is arranged in LED-baseplate (or interior), and LED-baseplate adopts transparent material.
With reference to Fig. 3, three-dimensional light-emitting diode display can be considered as keeping flat multiple stacking LED display stackings.Because LED submounts adopts transparent material, so when being watched by side, it can be seen that the LED element that at least two-layer being arranged above and below is luminous.The array that LED element is constituted has height, width and the degree of depth simultaneously, namely possesses three dimensions, it is possible to display stereoscopic picture plane 6.And shown stereoscopic picture plane 6 is the stereoscopic picture plane 6 being made up of actual luminous point, not by the stereoscopic picture plane that persistence of vision is formed, realistic strong, the advantage such as visual angle is big.The angle that light appears is had all to allow to see stereoscopic picture plane 6 by each.
The concrete structure of three-dimensional light-emitting diode display is with further reference to Fig. 2, and LED-baseplate includes at least two-layer LED submounts, namely at least includes LED submounts the 21, a 2nd LED submounts 22.Oneth LED submounts 21 and the 2nd LED submounts 22 are arranged above and below.Oneth LED submounts 21 adopts transparent material, and the first LED display sub array 11 is arranged on a LED submounts 21, and the 2nd LED submounts 22 adopts transparent material.Because there is distance between the first LED display sub array 11 and the second LED display sub array 12, it is possible to display stereo-picture.
LED-baseplate periphery is provided with transparent part.So that the three-dimensional image within light-emitting diode display of viewing from the side.Second LED display sub array 12 is arranged on the 2nd LED submounts 22.Between each layer LED submounts can by boning without shadow glue, to improve display quality.
Three LED display sub array arranged adjacent, and the LED element of the different color being respectively adopted in three primary colours, constitute a LED display sub array group.At least two LED display sub array group is arranged above and below, and is configured to show the three-dimensional light-emitting diode display of various rich colors.External accessory obtains stereoscopic image by controlling the situation of lighting of each LED element in each LED display sub array respectively.
It is also possible that LED display sub array is embedded in LED-baseplate.When manufacture can adopt production stacking LED display, method LED display sub array being embedded in described LED-baseplate adopted, obtain the three-dimensional light-emitting diode display that LED display sub array is embedded in described LED-baseplate.LED-baseplate periphery can be cylindricality, spherical.The electrode of the pin connecting LED element in LED array of display can adopt transparency electrode, it would however also be possible to employ tinsel, such as copper wire, filamentary silver etc..Tinsel should be relatively thin in order to avoid affecting vision.
With reference to Fig. 4, based on the aerial stereo imaging system of stacking LED display, including a Spatial Imaging System, Spatial Imaging System includes one as light source, and also including one will aloft form the photoimaging systems of picture from the light as light source.Stacking LED display is adopted as light source.Preferably three-dimensional light-emitting diode display 7.Photoimaging systems includes a convergence optics 8 that will carry out converging from the light as light source, combine closely in three-dimensional light-emitting diode display 7 and the surface converging optics 8, the stereoscopic image 71 that three-dimensional light-emitting diode display 7 produces is positioned at the convergence determined imaging region of optics 8, as as light source, stereoscopic image 71 is presented in the air.By being combined closely in the surface of three-dimensional light-emitting diode display 7 with convergence optics 8, reduce light refraction and reflection, and then image quality can be improved, additionally can also avoid between device because external force misplaces as far as possible.
Converging optics 8 in Fig. 4 adopts a concave surface to converge device, and three-dimensional light-emitting diode display 7 is positioned at concave surface and converges the concave surface of device.And it is corresponding that the peripheral structure of three-dimensional light-emitting diode display 7 converges device inner surface with concave surface, and both combine closely.The viewing area of three-dimensional light-emitting diode display 7 is positioned at concave surface and converges near device axis.So that forming image quality aerial three dimensional image preferably.
In specifically used, converging optics 8 and two concave surfaces can be adopted to converge device, two concave surfaces converge device and relatively fasten, and light-emitting diode display converges between device at two described concave surfaces.Concave surface described at least one of which converges bottom device and is provided with light-transmitting opening, in order to beam projecting, aloft forms picture.
Converging optics 8 can also adopt a plus lens, three-dimensional light-emitting diode display 7 to be positioned at plus lens side, and plus lens is directly produced on three-dimensional light-emitting diode display 7.So that forming image quality aerial three dimensional image preferably.
Photoimaging systems can also be one based on the air suspension imaging system of spectroscope imaging, is positioned at the spectroscope group above cabinet including a cabinet and one, and described light-emitting diode display is arranged in the described cabinet below described spectroscope group, as light source.
The existing air suspension imaging system based on spectroscope imaging is generally made up of cabinet, spectroscope group, shot-light, video playback apparatus, based on spectroscope image-forming principle, by product real scene shooting being built the special handling of threedimensional model, then the product image of shooting or product threedimensional model image superposition are marched into the arena in scape, constitute the product demonstration system being association of activity and inertia.The final product model phantom imaging effect incorporating outdoor scene to spectators' displaying.
In the present invention, it is possible to shot-light is omitted, video playback apparatus is changed into light-emitting diode display, and carries out suitable conventional optical system optimization, effect can be realized.
Ultimate principle and the principal character advantages of the present invention of the present invention are more than shown and described.The industry skilled person will appreciate that the present invention is by the restriction of above-mentioned using method; described in above-mentioned using method and description is say principles of the invention; the present invention also has various changes and modifications without departing from the spirit and scope of the present invention, and these changes and improvements both fall within claimed scope in the claimed scope of the invention and defined by appending claims and equivalent thereof.
Claims (77)
1. stacking LED display, including LED array of display, it is characterised in that described LED array of display includes at least two group LED display sub array, namely the first LED display sub array, the second LED display sub array；
Described first LED display sub array and the second LED display sub array are divided into front and back two-layer arrangement, or are arranged above and below；
Described LED-baseplate includes at least two-layer LED submounts；
Described LED submounts adopts the thermosets not yet carrying out heat cure；
First each described LED display sub array is arranged on the described LED submounts of each layer, then described for each layer LED submounts is stacked, put in mould and be heated, carry out heat cure, thus LED display sub array is embedded in described LED-baseplate.
2. stacking LED display according to claim 1, it is characterised in that: LED display sub array is respectively controlled.
3. stacking LED display according to claim 1, it is characterised in that: the color of the LED that the color of the LED that described first LED display sub array adopts and described second LED display sub array adopt is inconsistent.
4. stacking LED display according to claim 1, it is characterized in that: described LED array of display includes three groups of LED display sub array, namely the first LED display sub array, the second LED display sub array, the 3rd LED display sub array, described first LED display sub array, the second LED display sub array, the 3rd LED display sub array are divided into three-layer arrangement from A-P.
5. stacking LED display according to claim 4, it is characterised in that: described first LED display sub array, the second LED display sub array, the 3rd LED display sub array, the LED element of the different color being respectively adopted in three primary colours.
6. stacking LED display according to claim 5, it is characterised in that: the LED element of the different color in three primary colours is red, green, blue three-color LED element.
7. stacking LED display according to claim 1, it is characterised in that: described stacking LED display also includes a LED-baseplate, and described LED array of display is arranged in described LED-baseplate.
8. stacking LED display according to claim 7, it is characterised in that: described LED-baseplate two sides is respectively equipped with electrode group, respectively front electrode group and opposite electrode group；Containing at least two front electrodes in described front electrode group, containing at least two opposite electrode in described opposite electrode group；LED element in described LED array of display connects front electrode and opposite electrode respectively.
9. stacking LED display according to claim 8, it is characterised in that: described LED-baseplate is transparency carrier.
10. stacking LED display according to claim 9, it is characterised in that: described LED-baseplate is plastic, transparent substrate.
11. stacking LED display according to claim 10, it is characterised in that: described LED-baseplate is flexible plastic, transparent substrate.
12. stacking LED display according to claim 8, it is characterised in that: described electrode adopts transparency electrode.
13. stacking LED display according to claim 8, it is characterised in that: described electrode adopts tinsel.
14. stacking LED display according to claim 13, it is characterised in that: described electrode adopts at least one in filamentary silver, copper wire.
15. stacking LED display according to claim 12, it is characterised in that: described electrode adopts flexible transparency electrode.
16. stacking LED display according to claim 8, it is characterised in that: containing at least three front electrodes in described front electrode group, at least three front electrodes are arranged in described LED-baseplate front, and do not interlock；Containing at least three opposite electrode in described opposite electrode group, at least three opposite electrode are arranged in described LED-baseplate reverse side, and do not interlock；Described front electrode group is with described opposite electrode group, and at least two strip electrodes exist staggered in the longitudinal direction.
17. stacking LED display according to claim 16, it is characterised in that: front electrode group is interlocked with opposite electrode group, produces intersection point, connects LED element in point of intersection.
18. stacking LED display according to claim 8, it is characterised in that: containing at least three front electrodes in described front electrode group, at least three front electrode parallel arrangements are in described LED-baseplate front；Containing at least three opposite electrode in described opposite electrode group, at least three opposite electrode parallel arrangements are at described LED-baseplate reverse side；Described front electrode and described opposite electrode exist staggered in the longitudinal direction.
19. the stacking LED display according to any one in claim 7-18, it is characterized in that: described LED-baseplate is provided with a through hole, described LED element one end connects the electrode of one side, and the other end of described LED element connects the electrode of another side by described through hole.
20. stacking LED display according to claim 19, it is characterised in that: LED-baseplate is provided with a through hole, and opposite electrode extends to LED-baseplate front by through hole, and forms junction point；
LED element is positioned at LED-baseplate front, connects front electrode and junction point respectively.
21. stacking LED display according to claim 19, it is characterized in that: LED-baseplate is provided with a through hole, front electrode extends to LED-baseplate reverse side by through hole, and forms junction point, LED element is positioned at LED-baseplate 102 reverse side, connects opposite electrode and junction point respectively.
22. stacking LED display according to claim 21, it is characterised in that: LED-baseplate 102 is provided with blooming, and the light that LED element sends is received by human eye after blooming.
23. stacking LED display according to claim 19, it is characterised in that: a LED element takies alone a through hole.
24. stacking LED display according to claim 19, it is characterised in that: 2～4 LED element take a through hole jointly.
25. stacking LED display according to claim 19, it is characterised in that: LED element is embedded in through hole, and the two ends of LED element connect the double-edged electrode of LED-baseplate respectively.
26. stacking LED display according to claim 7, it is characterised in that: described LED-baseplate at least includes a LED submounts, the 2nd LED submounts；A described LED submounts is with described 2nd LED submounts in tandem；A described LED submounts adopts transparent material；Described first LED display sub array is arranged on a described LED submounts, and described second LED display sub array is arranged on described 2nd LED submounts.
27. stacking LED display according to claim 7, it is characterized in that: described LED-baseplate includes three layers LED submounts, namely a tandem LED submounts, the 2nd LED submounts, the 3rd LED submounts are included, a described LED submounts, the 2nd LED submounts are respectively adopted transparent material, and a described LED submounts, the 2nd LED submounts, the 3rd LED submounts are loaded with described first LED display sub array, the second LED display sub array, the 3rd LED display sub array respectively.
28. stacking LED display according to claim 26, it is characterised in that: the front of a described LED submounts is also covered with a transparent overcoat, in order to protect the first LED display sub array.
29. stacking LED display according to claim 28, it is characterised in that: overcoat adopts flexible plastic sheet, in order to make lattice LED display screen have flexibility.
30. stacking LED display according to claim 29, it is characterised in that: LED-baseplate obverse and reverse has been covered each by flexible transparent plastic plate.
31. stacking LED display according to claim 28, it is characterised in that: overcoat adopts hard transparent plate.
32. stacking LED display according to claim 31, it is characterised in that: hard transparent plate is at least one in hard plastic board or glass plate.
33. stacking LED display according to claim 31, it is characterised in that: LED-baseplate obverse and reverse has been covered each by hard transparent plate.
34. the stacking LED display according to any one in claim 1-18, it is characterised in that: the LED element in described LED array of display adopts adopting surface mounted LED element.
35. the stacking LED display according to any one in claim 1-18, it is characterised in that: the LED element in described LED array of display adopts LED wafer.
36. the stacking LED display according to any one in claim 26-33, it is characterized in that: the front of the described LED submounts being positioned at relative rear is furnished with rear electrode, the rear of the described LED submounts being positioned at relative front is furnished with front electrode, arrange before and after two pins of described LED element, be respectively connected to described rear electrode and front electrode.
37. stacking LED display according to claim 28, it is characterised in that: overcoat is provided with front electrode.
38. stacking LED display according to claim 36, it is characterised in that: front electrode and rear electrode constitute and control array, under the control of external control circuit and then control the luminous situation of each LED element, thus realizing the control to imaging pixel.
39. stacking LED display according to claim 36, it is characterised in that: described front electrode adopts transparency electrode.
40. stacking LED display according to claim 36, it is characterised in that: the rear electrode on LED submounts described at least two adopts transparency electrode.
41. stacking LED display according to claim 40, it is characterised in that: the rear electrode on last described LED submounts does not adopt transparency electrode.
42. stacking LED display according to claim 36, it is characterised in that: a pin of described LED element is fixedly attached in rear electrode or front electrode, and another pin is pressed together on another in front electrode or rear electrode.
43. stacking LED display according to claim 42, it is characterised in that: in two pins of described LED element, at least one is for having elastic pin, in order to keep good contact by the elastic rear electrode with pressing or front electrode.
44. stacking LED display according to claim 42, it is characterised in that: carry out the rear electrode of pressing with described pin or front electrode adopts the transparency electrode with flexibility, in order to bonding processes carries out good contact with the pin of described LED element.
45. the stacking LED display according to any one in claim 26-33, it is characterised in that: the LED submounts place in described LED element front is provided with an astigmatism block with astigmatism effect, so that the light that described LED element is launched is soft uniformly.
46. stacking LED display according to claim 45, it is characterised in that: the area of described astigmatism block is more than the longitudinal section area of described LED element.
47. stacking LED display according to claim 45, it is characterised in that: described astigmatism block is the part matsurface of LED submounts.
48. stacking LED display according to claim 45, it is characterised in that: described astigmatism block is front electrode coarse on LED submounts or rear electrode.
49. stacking LED display according to claim 45, it is characterised in that: the area of astigmatism block is that area incrementally increases from front to back, to avoid blocking.
50. stacking LED display according to claim 45, it is characterised in that: the area of astigmatism block area from front to back progressively reduces, to promote three primary colours are mixed.
51. the stacking LED display according to any one in claim 26-33, it is characterised in that: LED submounts adopts flexible transparent material, to generate the stacking LED display with flexibility.
52. stacking LED display according to claim 51, it is characterised in that: the electrode connecting LED element in LED array of display adopts tinsel.
53. stacking LED display according to claim 52, it is characterised in that: the electrode connecting LED element in LED array of display adopts at least one in filamentary silver, copper wire.
54. the stacking LED display according to any one in claim 26-33, it is characterized in that: described LED-baseplate includes three layers LED submounts, namely a tandem LED submounts, the 2nd LED submounts, the 3rd LED submounts are included, a described LED submounts, the 2nd LED submounts are respectively adopted transparent material, and a described LED submounts, the 2nd LED submounts, the 3rd LED submounts are loaded with described first LED display sub array, the second LED display sub array, the 3rd LED display sub array respectively；
Described first LED display sub array, the second LED display sub array, the 3rd LED display sub array, the LED element of the different color being respectively adopted in three primary colours, and the LED element color in each group LED display sub array is consistent；
The front of a described LED submounts is also covered with a transparent overcoat；
The front of the described LED submounts being positioned at relative rear is furnished with rear electrode, the rear of the described LED submounts being positioned at relative front is furnished with front electrode, arrange before and after two pins of described LED element, it is respectively connected to described rear electrode and front electrode, the rear of described overcoat also is provided with front electrode, front electrode and rear electrode and constitutes control array；
Rear electrode on oneth LED submounts, the 2nd LED submounts adopts transparency electrode；Front electrode on a described LED submounts, the 2nd LED submounts, overcoat adopts transparency electrode；
One pin of described LED element is fixedly attached on one of them electrode in rear electrode or front electrode, and another pin is crimped on another electrode in front electrode or rear electrode.
55. stacking LED display according to claim 54, it is characterised in that: described LED display sub array is embedded in described LED-baseplate.
56. stacking LED display according to claim 54, it is characterised in that: described LED-baseplate periphery is cylindricality or spherical.
57. three-dimensional light-emitting diode display, including LED array of display, it is characterised in that described LED array of display includes at least two group LED display sub array, namely the first LED display sub array, the second LED display sub array；Described first LED display sub array and the second LED display sub array are divided into the arrangement of upper and lower two-layer；
Also including a LED-baseplate, described LED display sub array is arranged in described LED-baseplate, and described LED-baseplate adopts transparent material；
Described LED-baseplate includes at least two-layer LED submounts；
Described LED submounts adopts the thermosets not yet carrying out heat cure；
First each described LED display sub array is arranged on the described LED submounts of each layer, then described for each layer LED submounts is stacked, put in mould and be heated, carry out heat cure, thus LED display sub array is embedded in described LED-baseplate.
58. three-dimensional light-emitting diode display according to claim 57, it is characterised in that: there is distance between the first LED display sub array and the second LED display sub array.
59. three-dimensional light-emitting diode display according to claim 57, it is characterised in that: LED-baseplate periphery is provided with transparent part.
60. three-dimensional light-emitting diode display according to claim 57, it is characterised in that: described LED-baseplate at least includes a LED submounts, the 2nd LED submounts；A described LED submounts and described 2nd LED submounts are arranged above and below；A described LED submounts adopts transparent material, and described first LED display sub array is arranged on a described LED submounts, and described 2nd LED submounts adopts transparent material, and described second LED display sub array is arranged on described 2nd LED submounts.
61. three-dimensional light-emitting diode display according to claim 60, it is characterised in that: by boning without shadow glue between described each layer LED submounts.
62. three-dimensional light-emitting diode display according to claim 60, it is characterised in that: three LED display sub array arranged adjacent, and the LED element of the different color being respectively adopted in three primary colours, constitute a LED display sub array group；At least two LED display sub array group is arranged above and below.
63. three-dimensional light-emitting diode display according to claim 62, it is characterised in that: external equipment obtains stereoscopic image by controlling the situation of lighting of each LED element in each LED display sub array respectively.
64. three-dimensional light-emitting diode display according to claim 60, it is characterised in that: described LED display sub array is embedded in described LED-baseplate.
65. the three-dimensional light-emitting diode display according to any one in claim 57-64, it is characterised in that: described LED-baseplate periphery is cylindricality or spherical.
66. the three-dimensional light-emitting diode display according to any one in claim 57-64, it is characterised in that: the electrode of the pin connecting LED element in described LED array of display adopts transparency electrode.
67. three-dimensional light-emitting diode display according to claim 66, it is characterised in that: the electrode of the pin connecting LED element in described LED array of display adopts tinsel.
68. three-dimensional light-emitting diode display according to claim 67, it is characterised in that: tinsel is at least one in copper wire, filamentary silver.
69. the aerial stereo imaging system based on stacking LED display, including a Spatial Imaging System, described Spatial Imaging System includes one as light source, and also including one will aloft form the photoimaging systems of picture from the light as light source, it is characterized in that, described picture light source adopts stacking LED display.
70. the aerial stereo imaging system based on stacking LED display, including a Spatial Imaging System, described Spatial Imaging System includes one as light source, and also including one will aloft form the photoimaging systems of picture from the light as light source, it is characterized in that, described picture light source adopts described three-dimensional light-emitting diode display.
71. the aerial stereo imaging system based on stacking LED display according to claim 70, it is characterized in that: described photoimaging systems includes a convergence optics that will carry out converging from the described light as light source, the surface combination of described three-dimensional light-emitting diode display and described convergence optics, the stereoscopic image that described three-dimensional light-emitting diode display produces is positioned at the imaging region that described convergence optics is determined.
72. the aerial stereo imaging system based on stacking LED display according to claim 71, it is characterised in that: described convergence optics adopts a concave surface to converge device, and described three-dimensional light-emitting diode display is positioned at described concave surface and converges the concave surface of device.
73. the aerial stereo imaging system based on stacking LED display according to claim 72, it is characterised in that: it is corresponding that the peripheral structure of three-dimensional light-emitting diode display converges device inner surface with described concave surface, and both combine closely.
74. the aerial stereo imaging system based on stacking LED display according to claim 72, it is characterised in that: the viewing area of described three-dimensional light-emitting diode display is positioned at described concave surface and converges near device axis.
75. the aerial stereo imaging system based on stacking LED display according to claim 71, it is characterized in that: described convergence optics adopts two concave surfaces to converge device, two described concave surfaces converge device and relatively fasten, and described light-emitting diode display converges between device at two described concave surfaces；Concave surface described at least one of which converges bottom device and is provided with light-transmitting opening, in order to beam projecting, aloft forms picture.
76. the aerial stereo imaging system based on stacking LED display according to any one in claim 71-75, it is characterized in that: described convergence optics adopts a plus lens, described three-dimensional light-emitting diode display is positioned at described plus lens side, and described plus lens is directly produced on described three-dimensional light-emitting diode display.
77. the aerial stereo imaging system based on stacking LED display according to any one in claim 71-75, it is characterized in that: described photoimaging systems is also one based on the air suspension imaging system of spectroscope imaging, it is positioned at the spectroscope group above cabinet including a cabinet and one, described light-emitting diode display is arranged in the described cabinet below described spectroscope group, as light source.
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| CN201610279164.1A CN105825780B (en) | 2010-10-14 | 2011-08-01 | Aerial stereo imaging system for three-dimensional light-emitting diode display |
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| CN201610279164.1A Active CN105825780B (en) | 2010-10-14 | 2011-08-01 | Aerial stereo imaging system for three-dimensional light-emitting diode display |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN102610170A (en) | 2012-07-25 |
| CN105845039B (en) | 2018-12-21 |
| CN105825780B (en) | 2018-12-21 |
| CN105845039A (en) | 2016-08-10 |
| CN102456295B (en) | 2016-06-22 |
| CN105825780A (en) | 2016-08-03 |
| CN102455519A (en) | 2012-05-16 |
| CN105845038B (en) | 2018-12-21 |
| CN105845038A (en) | 2016-08-10 |
| CN102456296B (en) | 2016-05-25 |
| CN102456296A (en) | 2012-05-16 |
| CN102455519B (en) | 2016-11-23 |
| CN102456295A (en) | 2012-05-16 |
| CN105825781A (en) | 2016-08-03 |
| CN105825781B (en) | 2019-05-21 |
| CN102456297A (en) | 2012-05-16 |
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