CN102376207A - LED three-dimensional display screen and manufacturing method thereof, display system and method - Google Patents
LED three-dimensional display screen and manufacturing method thereof, display system and method Download PDFInfo
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Abstract
The invention discloses an LED three-dimensional display screen based on a holographic lens, which comprises an LED display screen and a holographic lens array plate arranged in front of the LED display screen, a holographic lens array is arranged on the holographic lens array plate, holographic lens units correspond to pixel points of the LED display screen one by one, the single pixel point is positioned at the focus of the corresponding holographic lens unit, the LED display screen displays a three-dimensional frame or three-dimensional image formed by an image sequence with different visual angles, light rays of different visual angles of images by the image sequence distributed on the LED display screen are ejected in different set representing angles to generate an observation region, and the left eye and the right eye of a human respectively receive different visual angles of images separated from the image sequence. The invention also discloses a manufacturing method of the LED three-dimensional display screen, and a display method. The LED three-dimensional display screen can obtain a naked eye three-dimensional display effect, and has a stable and compact structure and smaller space size relative to the traditional scheme.
Description
Technical field
The present invention relates to display device, particularly relate to a kind of LED (light emitting diode) stereoscopic display screen and method for making, display system and display packing based on holographic lens.
Background technology
The color LED display technique has the brightness height, and the visual angle is big, and WV is low, and power consumption is little, and the life-span is long, and the shock-resistant incomparable advantage of other display techniques that waits can satisfy the demand of various different application scenes, has vast market prospect.
Real world is a three-dimensional world, and people generally hope it also is three-dimensional when watching image, and general LED display all can only carry out the two dimension demonstration, utilizes the LED display technique to realize that it is the hot subject that the researcher studies that free stereo shows.
One Chinese patent application CN 101321300A has proposed a kind of LED large scale freedom stereo display technique based on grating; Show on the LED screen and contain the right and left eyes image of setting parallax information; Place an original screen panel at LED screen space before; Utilize original screen panel assurance observer left eye only to see left-eye image, right eye is only seen eye image, thereby realizes that free stereo shows.But when using original screen panel, want the observer and can observe picture clearly, the distance between original screen panel and the LED screen needs bigger.At the LED pel spacing is 4 millimeters, and the observer should be 29 centimetre through calculating the distance that original screen panel and LED shield apart from screen 5 meters the time.This makes the original screen panel difficult installation apart from crossing conference, and system is too huge and stable to be reduced greatly.
Summary of the invention
Fundamental purpose of the present invention is exactly the deficiency to prior art, and a kind of LED stereoscopic display screen based on holographic lens is provided, and on the basis that obtains bore hole stereo display effect, has stable compact structure and less bulk.
Another object of the present invention provides the display system that adopts this LED stereoscopic display screen.
Another purpose of the present invention is based on the LED stereo display method of holographic lens.
For realizing above-mentioned purpose, the present invention adopts following technical scheme:
A kind of LED stereoscopic display screen based on holographic lens; Comprise LED display; Also comprise and be arranged on the preceding holographic lens array plate of said LED display; Be distributed with holographic lens array on the said holographic lens array plate; The holographic lens unit is corresponding one by one with the pixel of said LED display, and single pixel is positioned at the along of corresponding holographic lens unit, the three-dimensional frame that the anaglyph sequence that said LED display demonstration has different visual angles forms; Or play a plurality of said three-dimensional frames continuously and form dynamic 3-D videos; Through said holographic lens array, the light of the different visual angles image that said image sequence distributes on said LED display penetrates forming viewing area with the different reproduction angle of setting, and people's left eye and right eye receive the image of isolated different visual angles from said image sequence respectively at said viewing area.
Preferably, said holographic lens is being evenly distributed on the said holographic lens array plate on the direction in length and breadth, and the shape of described holographic lens can be circle or ellipse or regular polygon.
Preferably; The horizontal parallax image sequence of different visual angles comprises the image at n the visual angle of being gathered by n image unit; N >=2 wherein; The first row pixel from the image at each visual angle is listed on the said LED display by the respective column line of pixels of setting order with the image at each visual angle, has arranged until last row pixel of the image at each visual angle; Each row pixel is stitched together and obtains said three-dimensional frame, and people's left eye and right eye receive each row pixel of the image that belongs to different visual angles respectively at viewing area.
Preferably, the level of different visual angles and vertical parallax image sequence comprise the image by m * m * n visual angle that n image unit array is gathered, m wherein, n >=2;
Corresponding to each the row image unit in the n row, the first row pixel from the image at each visual angle is listed on the said LED display by the respective column line of pixels of setting order with the image at each visual angle, has arranged until last row pixel of the image at each visual angle;
Each row image unit corresponding to m in capable, the first row pixel from the image at each visual angle is listed on the said LED display by the corresponding line line of pixels of setting order with the image at each visual angle, has arranged until last column pixel of the image at each visual angle;
Pel array is stitched together and obtains the said three-dimensional frame that comprises level and vertical parallax simultaneously; People's left eye and right eye receive each the row pixel that belongs to the different visual angles image in the transverse observation position of setting, and the row under each the row pixel that receives changes with the longitudinal 2 observation position of human eye.
A kind of LED three-dimensional display system based on holographic lens comprises display control unit and aforementioned any LED stereoscopic display screen, and said control device provides three-dimensional frame image signal, LED display drive signal and control signal to said LED stereoscopic display screen.
A kind of LED three-dimensional display system based on holographic lens comprises:
Aforementioned any LED stereoscopic display screen;
Camera head comprises n image unit of the image that is used to gather n visual angle, wherein n >=2 at least; With
Control device is used to control the IMAQ of camera head, and control will have the three-dimensional frame that the anaglyph sequence of different visual angles forms and show at LED display.
A kind of method of making based on the LED stereoscopic display screen of holographic lens comprises:
Making has the holographic lens array plate of holographic lens array;
The holographic lens array plate is installed in LED display the place ahead; And it is corresponding one by one with the pixel of LED display to be configured to the holographic lens unit; And the single pixel of LED display is positioned at the along of corresponding holographic lens unit, and the branch light action of holographic lens array makes the light of the image on the different lens units that are distributed in setting penetrate to produce parallax with the different reproduction angle of setting.
Preferably, making the holographic lens array plate comprises:
(1) beam splitter of making in the light path through holographic lens is divided into two-way with laser beam, and one the tunnel is thing light, and one the tunnel is reference light, and two-way light comes together on the photoresist sheet with certain included angle, makes its recording holographic lens information;
(2) move through computer control shutter close and photoresist sheet, evenly the recording holographic lens shaped becomes holographic lens array on photoresist sheet;
(3) behind the photoresist sheet end exposure, develop, electroforming, layout obtain the holographic lens array mother matrix again;
(4) through mold pressing mother matrix is pressed on the transparent thermoplastic material, obtains the holographic lens array plate.
More preferably, said photoresist sheet is divided into the left and right side photoresist sheet, and said holographic lens is made light path and comprised that the left side holographic lens is made light path and the right side holographic lens is made light path, and step (2) comprising:
A selected sidelight is carved record start position on the offset plate, uses this side holographic lens to make light path, and computer control is opened shutter to the reference position record that makes public;
After record on the position at photoresist sheet finishes; Close shutter; Photoresist sheet moved to open the shutter record that makes public behind the next record position again, carry out so repeatedly, record ceases lens arra fully uniformly on photoresist sheet;
After recording the photoresist sheet center, to use the opposite side holographic lens instead and make light path record opposite side photoresist sheet, recording process is with last sidelights record process.
Preferably, said holographic lens array plate is affixed on the LED display with the mode of gummed.
A kind of LED stereo display method based on holographic lens comprises:
Simulation object model to real-world object or computing machine generation is taken multi-view image;
LED display shows the three-dimensional frame of the anaglyph sequence formation with different visual angles, or plays a plurality of said three-dimensional frames formation dynamic 3-D videos continuously,
Holographic lens array through LED display the place ahead; The light that makes the different visual angles image that said image sequence distributes at said LED display penetrates forming viewing area with the different reproduction angle of setting, so that people's left eye and right eye receive the image of different visual angles in the said image sequence respectively at said viewing area.
Preferably; The horizontal parallax image sequence of different visual angles comprises the image at n the visual angle of being gathered by n image unit; N >=2 wherein; The first row pixel from the image at each visual angle is listed on the said LED display by the respective column line of pixels of setting order with the image at each visual angle, has arranged until last row pixel of the image at each visual angle; Each row pixel is stitched together and obtains said three-dimensional frame, and people's left eye and right eye receive each row pixel of the image that belongs to different visual angles respectively at said viewing area.
Preferably, the level of different visual angles and vertical parallax image sequence comprise the image by m * m * n visual angle that n image unit array is gathered, m wherein, n >=2;
Corresponding to each the row image unit in the n row, the first row pixel from the image at each visual angle is listed on the said LED display by the respective column line of pixels of setting order with the image at each visual angle, has arranged until last row pixel of the image at each visual angle;
Each row image unit corresponding to m in capable, the first row pixel from the image at each visual angle is listed on the said LED display by the corresponding line line of pixels of setting order with the image at each visual angle, has arranged until last column pixel of the image at each visual angle;
Pel array is stitched together and obtains the said three-dimensional frame that comprises level and vertical parallax simultaneously; People's left eye and right eye receive each the row pixel that belongs to the different visual angles image in the transverse observation position of setting, and the row under each the row pixel that receives changes with the longitudinal 2 observation position of human eye.
Beneficial technical effects of the present invention is:
Realized the stereo display of LED screen in the time of advantages such as the present invention is inheriting ordinary two dimensional demonstration LED screen brightness height, and the visual angle is big, and WV is low, and power consumption is little, and the life-span is long, and is shock-resistant, the observer need not to wear special spectacles and promptly can be observed 3-D view true to nature;
Through being cooperated with the common LED screen, the holographic lens array plate forms the LED stereoscopic display screen; With respect to the scheme that adopted original screen panel in the past; Holographic lens array can abut against on the LED screen, thereby can obtain Stability Analysis of Structures compactness, three-dimensional display system that size is littler, except compact conformation simple; Outside being convenient to build, the cost that whole stereoscopic display screen increases on the basis of common LED screen is also few.
Through suitable configuration holographic lens array plate, show the three-dimensional frame of the image sequence composition at m * n visual angle on the LED screen, level (laterally) parallax all can show through stereoscopic display screen with vertical (vertically) anaglyph.
The present invention can be applied to the various occasions that need stereo display such as large-scale scenery, outdoor billboard, fair exhibition booth.
Description of drawings
Fig. 1 is holographic lens recording principle figure;
Fig. 2 is holographic lens use principle figure;
Fig. 3 is the stereo display schematic diagram of the LED stereoscopic display screen of a kind of embodiment;
Fig. 4 is the holographic lens array of a kind of embodiment synoptic diagram of arranging;
Fig. 5 a-5b is the schematic diagram that obtains three-dimensional frame among a kind of embodiment;
Fig. 6 is the LED three-dimensional display system synoptic diagram of a kind of embodiment.
Fig. 7 is a kind of making light channel structure of left side holographic lens array plate figure;
Fig. 8 is a kind of making light channel structure of right side holographic lens array plate figure;
Fig. 9 is a kind of making process flow diagram of holographic lens array plate.
Embodiment
Below combine accompanying drawing that the present invention is further specified through embodiment.
As shown in Figure 1; Parallel light
focuses on focus
through lens 1; The aperture of lens 1 is D; Focal length is
; Hologram recording material 2 is placed near the focus
; Locate for
apart from focus;
should equate with the distance
of LED screen surfaces with LED pixel in the LED screen; The spot diameter of thing light is
on the hologram recording material 2; Parallel reference light
is injected recorded hologram with incident angle
; The hologram of record is alike like this is
in the aperture; Focal length is
; Reproducing the angle is the holographic lens of
;
is identical with lens 1 for its field angle, and calculating formula is
.According to light path shown in Figure 1, the order uniform exposure can obtain the holographic lens array plate on hologram recording material 2, and is as shown in Figure 5.
As shown in Figure 2; Obtain after the holographic lens array plate 2; Holographic lens array plate 2 is attached on the LED display, makes the single pixel 3 of LED display just be positioned at the focus of corresponding holographic lens
and locate.If the pixel of LED is regarded as a pointolite and is sent light wavelength when identical with the recording light wavelength; To penetrate to reproduce angle
from the light of holographic lens outgoing, and just can make the right and left eyes separation of images when being applied to whole holographic lens array plate.
Referring to Fig. 3; In one embodiment; Based on the LED stereoscopic display screen of holographic lens, comprise that LED display 38 puts the holographic lens array plate 39 before said LED display, be distributed with holographic lens array on the said holographic lens array plate 39; Holographic lens unit 18 in the array is corresponding one by one with the pixel of said LED display, and single pixel is positioned at the along of corresponding holographic lens unit.Said LED display 38 shows the three-dimensional frame of the image sequence formation with different visual angles, or plays a plurality of said three-dimensional frames formation dynamic 3-D videos continuously.Through said holographic lens array; The light of the different visual angles image that said image sequence distributes on said LED display penetrates to form viewing area with the different reproduction angle of setting, and makes people's left eye and right eye receive the image of isolated different visual angles from said image sequence respectively at viewing area.
Referring to Fig. 4, in certain embodiments, holographic lens unit 18 is arranged into holographic lens array being evenly distributed on the array board 17 on the direction in length and breadth with adjoining each other.The shape of holographic lens unit on array board can be circle, also can be ellipse or regular polygon.
LED display can adopt the two dimension of any routine to show LED display.In certain embodiments, the single pixel of described LED display can be made up of triangle, three kinds of LED of red, green, blue horizontal or that vertically arrange, also can be that the LED that other any LED of being used for screens show makes up.Corresponding to the holographic lens unit, each LED pixel spacing on direction in length and breadth is consistent, and distribution is evenly distributed.
In certain embodiments; The horizontal parallax image sequence of different visual angles comprises the image at n the visual angle of being gathered by n image unit; N >=2 wherein; The first row pixel from the image at each visual angle is listed on the said LED display by the respective column line of pixels of setting order with the image at each visual angle, has arranged until last row pixel of the image at each visual angle; Each row pixel is stitched together and obtains said three-dimensional frame, and people's left eye and right eye receive each row pixel of the image that belongs to different visual angles respectively at viewing area.
Referring to Fig. 3 and Fig. 5 a-5b, Fig. 5 a-5b has represented to obtain the principle of the three-dimensional frame of horizontal parallax.Simulation object model to a real-world object or computing machine generation carries out the various visual angles projection imaging; For example aim at object 19 with four sequence video camera 20-23; Obtain the various visual angles sequence image; The first row image pixel of the image that video camera 20 is photographed extracts the position 24 (following pixel with this position is called pixel column 24) that is placed on the LED display; The first row image pixel of the image that video camera 21 is photographed extracts and is placed on position 25, and the first row image pixel of the image that video camera 22 is photographed extracts and is placed on position 26, and the first row image pixel of the image that at last video camera 23 is photographed extracts and is placed on position 27; Position 28-31 is again a circulation, and all image pixels of arranging again are stitched together just obtains the three-dimensional frame of a horizontal parallax.
As above, the number n of obtaining the sequence video camera of the three-dimensional frame of horizontal parallax should be no less than two, and it not only can be to go up in the example four, also can be more a plurality of.Video camera was many more when various visual angles were taken, and the visual field that can observe stereoeffect when the compound stereoscopic frame shows is just big more.
Fig. 3 explains how human eye sees three-dimensional frame stereoscopic images displayed.As shown in the figure, be pasted with holographic lens array plate 39 on the LED screen 38, the pixel that LED screen 38 is placed with three-dimensional frame comprises pixel column 24-37, and wherein pixel column 24-27 is respectively the pixel of the corresponding photographic images of video camera 20-23, and all the other are analogized according to its order of arranging.Through the branch light action of holographic lens array plate, observer's left eye 40 can only be seen pixels such as 24,28,32,34,36, and observer's right eye 41 can only be seen pixels such as 25,29,33,35,37.Promptly at this desired location, left eye can only be seen the image that video camera 20 is taken, and right eye can only be seen the image that video camera 21 is taken.If the observer moves right in the horizontal direction, then left eye can be seen the image that video camera 21, video camera 22, video camera 23 are taken successively, and what right eye can be seen successively is the image of video camera 22, video camera 23, video camera 20 shootings.Be the interocular distance 42 nearly 6.5 centimetres of human eye, so observer's right and left eyes sees is the sequence image with different parallaxes, thereby obtained stereoscopic vision, and obtained certain visual angle.And if on display screen, play continuously three-dimensional frame sequence, then can obtain dynamic 3-D video.
Except each the row image pixel that shown in Fig. 3 and Fig. 5 a-5b each video camera is photographed image is alternately arranged; Every multiple row image pixel that also can be each camera review is alternately arranged; The reproduction angle of the lens unit through adjustment holographic lens array respective column; Equally also can reach aforementioned effect, for example desired location in the horizontal direction makes left eye can only see the image that video camera 20 is taken; And right eye can only be seen the image that video camera 21 is taken, and right and left eyes was observed the image that different cameras is taken respectively when the observer moved in the horizontal direction.
In order further to obtain vertical parallax, in certain embodiments, the image sequence of different visual angles comprises the image by m * m * n visual angle that n image unit array is gathered, m wherein, n >=2;
Corresponding to each the row image unit in the n row, the first row pixel from the image at each visual angle is listed on the said LED display by the respective column line of pixels of setting order with the image at each visual angle, has arranged until last row pixel of the image at each visual angle;
Each row image unit corresponding to m in capable, the first row pixel from the image at each visual angle is listed on the said LED display by the corresponding line line of pixels of setting order with the image at each visual angle, has arranged until last column pixel of the image at each visual angle;
Pel array is stitched together and obtains the said three-dimensional frame that comprises level and vertical parallax simultaneously; Observer's left eye and right eye receive each the row pixel that belongs to the different visual angles image in the transverse observation position of setting, and the row under each the row pixel that receives changes with the longitudinal 2 observation position of human eye.
Simulation object model to a real-world object or computing machine generation carries out the various visual angles projection imaging, with four sequence camera objects, obtains the various visual angles sequence image, and the sequence image pixel of gained is arranged to be stitched together again just obtains a three-dimensional frame.Form the sequence of three-dimensional frame successively, finally form stereopsis.
The number of sequence video camera should be no less than two, not only can be four, also can be more a plurality of.Video camera was many more when various visual angles were taken, and the visual field that can observe stereoeffect when the compound stereoscopic frame shows is just big more.
The three-dimensional frame of play sequence is realized dynamically showing continuously, separates through holographic lens array plate stereo frame, isolates the right and left eyes image, makes observer's left eye observe left-eye image, and right eye is observed eye image, thereby realizes that dynamic solid shows.
On the other hand, the present invention also provides a kind of LED stereo display method based on holographic lens, may further comprise the steps:
Simulation object model to real-world object or computing machine generation is taken multi-view image;
LED display shows the three-dimensional frame of the anaglyph sequence formation with different visual angles, or plays a plurality of said three-dimensional frames formation dynamic 3-D videos continuously,
Holographic lens array through LED display the place ahead; The light that makes the different visual angles image that said image sequence distributes at said LED display penetrates forming viewing area with the different reproduction angle of setting, so that people's left eye and right eye receive the image of different visual angles in the said image sequence respectively at said viewing area.
The specific embodiments of this display packing can be described referring to preceding text.
On the other hand; The present invention also provides a kind of LED three-dimensional display system based on holographic lens; It comprises the LED stereoscopic display screen of display control unit and aforementioned arbitrary embodiment, and said display control unit provides three-dimensional frame image signal, LED display drive signal and control signal to said LED stereoscopic display screen.Said display control unit can be a computing machine.
Fig. 6 is the synoptic diagram based on an embodiment of LED three-dimensional display system of holographic lens.
This LED three-dimensional display system comprises with LED display 44, holographic lens array plate 45 and computing machine 43.Each pixel of LED display 44 all has red, green, and blue three kinds of LED rearrange by fixed form, and the spacing between the pixel is all consistent.Three kinds of LED of each pixel of LED screen are according to triangular arranged among the embodiment; Spacing between the pixel is 4 millimeters; The resolution of LED screen is
, and the size of display screen is about
.Make three-dimensional frame according to Fig. 5 a-5b; Computing machine 43 is transferred to LED display with three-dimensional frame it is shown; The right and left eyes that the right and left eyes image that diffraction through each lens unit 46 on the holographic lens array plate 45 divides light action to make three-dimensional frame is not observed respectively the person receives, thereby makes the observer observe the stereo display effect.
Aspect another, the present invention provides another kind of LED three-dimensional display system based on holographic lens, comprising:
The LED stereoscopic display screen of aforementioned arbitrary embodiment;
Camera head comprises n image unit of the image that is used to gather n visual angle, wherein n >=2 at least; With
Control device is used to control the IMAQ of camera head, and control will have the three-dimensional frame that the anaglyph sequence of different visual angles forms and show at LED display.Said control device can be a computing machine.Said control device can be made up of a plurality of opertaing devices that separate on the physical location.
In addition, the present invention also provides the method for a kind of making based on the LED stereoscopic display screen of holographic lens, comprising:
Making has the holographic lens array plate of holographic lens array;
The holographic lens array plate is installed in LED display the place ahead; And it is corresponding one by one with the pixel of LED display to be configured to the holographic lens unit; And the single pixel of LED display is positioned at the along of corresponding holographic lens unit, and the branch light action of holographic lens array makes the light of the image on the different lens units that are distributed in setting penetrate to produce parallax with the different reproduction angle of setting.
In certain embodiments, the step of making holographic lens array plate comprises:
(1) through beam splitter laser beam is divided into two-way, the one tunnel is thing light, and one the tunnel is reference light, and two-way light converges on the photoresist sheet with certain included angle, makes its recording holographic lens information.
(2) move through computer control shutter close and photoresist sheet, evenly the recording holographic lens form array on photoresist sheet.
(3) behind the photoresist sheet end exposure, develop, electroforming, layout obtain the holographic lens array mother matrix again.
(4) through mould pressing technology mother matrix is pressed on the thermoplastic material, obtains the holographic lens array plate.
Said thermoplastic material can be transparent materials such as polyester, polycarbonate, PVC.
Mode with gummed behind the holographic lens array plate that is suppressed by the holographic lens array mother matrix is affixed on the LED screen.
In a kind of preferred embodiment, the holographic lens array manufacturing system comprises computing machine, laser instrument at least, shutter, beam splitter, spatial filter, extender lens and photoresist sheet.
In a preferred embodiment, need the angle of deflection, the holographic lens of the left and right sides is produced the different reproduction angle according to the left and right sides on the LED screen.Therefore, build two kinds of light paths of left and right sides when making the holographic lens array plate, like Fig. 7 and shown in Figure 8.It is basic identical that two kinds of holographic lens array versions of left and right sides are made light channel structure; Just the angle of reference light incident is different, includes laser instrument 4, shutter 5, beam splitter 6, thing light spatial filter 7, lens 8, diaphragm 9, lens 10, photoresist sheet 11, lens 12, reference light spatial filter 13, plane mirror 14 and plane mirror 15.As shown in Figure 7; Laser instrument 4 sends laser beam; Be divided into thing light and reference light two-way through behind the beam splitter 6, the reference light of thing light process spatial filter 7, lens 8, lens 10 backs and 13 filtering of process spatial filter converges with certain angle to be penetrated on photoresist sheet 11.Computing machine 16 control shutters 5 close the exposure on photoresist sheet of instrumentality light and reference light, are also controlling moving of photoresist sheet in addition, and exposure and photoresist mobile phase are coordinated.
As shown in Figure 9, preferably, the idiographic flow of this embodiment holographic lens array board manufacturing method comprises:
Record start position on the photoresist sheet of selected left side adopts the left side holographic lens to make light path, and computer control is opened shutter to the reference position record that makes public.
After record on the position at photoresist sheet finishes, close shutter, photoresist sheet is moved to open the shutter record that makes public behind the next record position again.Carry out so repeatedly, record ceases lens arra fully uniformly on photoresist sheet.
After recording the photoresist sheet center, to use the right side holographic lens instead and make the light path record, recording process and left side recording process are similar.
As previously mentioned, photoresist sheet is after evenly record finishes, and develops, electroforming, layout obtain the holographic lens array mother matrix, utilizes mother matrix, can produce the holographic lens array plate through transparent thermoplastic material's mold pressing again.
The holographic lens array plate meaning as shown in Figure 4 that a kind of embodiment obtained.Holographic lens is evenly distributed on the plate with what direction in length and breadth adjoined each other, single holographic lens be shaped as circle.Can obtain corresponding holographic lens shape through the incoming cross-section shape of selecting diaphragm, if incoming cross-section is oval, then the shape of holographic lens also is oval.Can be regular polygon in addition.Can choose corresponding shape according to the needs of practical application.
Above content is to combine concrete preferred implementation to the further explain that the present invention did, and can not assert that practical implementation of the present invention is confined to these explanations.For the those of ordinary skill of technical field under the present invention, under the prerequisite that does not break away from the present invention's design, can also make some simple deduction or replace, all should be regarded as belonging to protection scope of the present invention.
Claims (13)
1. LED stereoscopic display screen based on holographic lens; Comprise LED display; It is characterized in that, also comprise being arranged on the preceding holographic lens array plate of said LED display, be distributed with holographic lens array on the said holographic lens array plate; The holographic lens unit is corresponding one by one with the pixel of said LED display; And single pixel is positioned at the along of corresponding holographic lens unit, and said LED display shows the three-dimensional frame of the anaglyph sequence formation with different visual angles, or plays a plurality of said three-dimensional frames formation dynamic 3-D videos continuously; Through said holographic lens array; The light of the different visual angles image that said image sequence distributes on said LED display penetrates with the formation viewing area with the different reproduction angle of setting, people's left eye and the anaglyph that right eye receives isolated different visual angles from said image sequence respectively when the people observes at said viewing area, and the anaglyph of said different visual angles is fused into stereo-picture through people's brain.
2. LED stereoscopic display screen as claimed in claim 1 is characterized in that, said holographic lens is being evenly distributed on the said holographic lens array plate on the direction in length and breadth, described holographic lens be shaped as circle or ellipse or regular polygon.
3. according to claim 1 or claim 2 LED stereoscopic display screen; It is characterized in that; The anaglyph sequence of said different visual angles is the horizontal parallax image sequence that comprises that the image at n the visual angle of being gathered by n image unit forms, and n >=2 wherein are from the first row pixel of the image at each visual angle; Be listed on the said LED display by the respective column line of pixels of setting order the image at each visual angle; Last row pixel until the image at each visual angle has been arranged, and each row pixel is stitched together and obtains said three-dimensional frame, and people's left eye and right eye receive each row pixel of the image that belongs to different visual angles respectively at said viewing area.
4. like claim 1 or 2 or 3 described LED stereoscopic display screens; It is characterized in that; The anaglyph sequence of said different visual angles is level and the vertical parallax image sequence that comprises by the image at m * m * n visual angle that n image unit array is gathered, m wherein, n >=2;
Corresponding to each the row image unit in the n row, the first row pixel from the image at each visual angle is listed on the said LED display by the respective column line of pixels of setting order with the image at each visual angle, has arranged until last row pixel of the image at each visual angle;
Each row image unit corresponding to m in capable, the first row pixel from the image at each visual angle is listed on the said LED display by the corresponding line line of pixels of setting order with the image at each visual angle, has arranged until last column pixel of the image at each visual angle;
Pel array is stitched together and obtains the said three-dimensional frame that comprises level and vertical parallax simultaneously; People's left eye and right eye receive each the row pixel that belongs to the different visual angles image in the transverse observation position of setting, and the row under each the row pixel that receives changes with the longitudinal 2 observation position of human eye.
5. LED three-dimensional display system based on holographic lens; It is characterized in that; Comprise display control unit and like each described LED stereoscopic display screen of claim 1 to 5, said display control unit provides three-dimensional frame image signal, LED display drive signal and control signal to said LED stereoscopic display screen.
6. the LED three-dimensional display system based on holographic lens is characterized in that, comprising:
Like each described LED stereoscopic display screen of claim 1 to 5;
Camera head comprises n image unit of the image that is used to gather n visual angle, wherein n >=2 at least; With
Control device is used to control the IMAQ of camera head, and control will have the three-dimensional frame that the anaglyph sequence of different visual angles forms and show at LED display.
7. a making is characterized in that based on the method for the LED stereoscopic display screen of holographic lens, comprising:
Making has the holographic lens array plate of holographic lens array;
The holographic lens array plate is installed in LED display the place ahead; And it is corresponding one by one with the pixel of LED display to be configured to the holographic lens unit; And the single pixel of LED display is positioned at the along of corresponding holographic lens unit, and the branch light action of holographic lens array makes the light of the anaglyph on the different lens units that are distributed in setting penetrate to produce parallax with the different reproduction angle of setting.
8. method as claimed in claim 7 is characterized in that, makes the holographic lens array plate and comprises:
(1) beam splitter of making in the light path through holographic lens is divided into two-way with laser beam, and one the tunnel is thing light, and one the tunnel is reference light, and two-way light comes together on the photoresist sheet with certain included angle, makes its recording holographic lens information;
(2) move through computer control shutter close and photoresist sheet, evenly the recording holographic lens shaped becomes holographic lens array on photoresist sheet;
(3) behind the photoresist sheet end exposure, develop, electroforming, layout obtain the holographic lens array mother matrix again;
(4) through mold pressing mother matrix is pressed on the transparent thermoplastic material, obtains the holographic lens array plate.
9. the described method of claim 8 is characterized in that, said photoresist sheet is divided into the left and right side photoresist sheet, and said holographic lens is made light path and comprised that the left side holographic lens is made light path and the right side holographic lens is made light path, and step (2) comprising:
A selected sidelight is carved record start position on the offset plate, uses this side holographic lens to make light path, and computer control is opened shutter to the reference position record that makes public;
After record on the position at photoresist sheet finishes; Close shutter; Photoresist sheet moved to open the shutter record that makes public behind the next record position again, carry out so repeatedly, record ceases lens arra fully uniformly on photoresist sheet;
After recording the photoresist sheet center, to use the opposite side holographic lens instead and make light path record opposite side photoresist sheet, recording process is with last sidelights record process.
10. like each described method of claim 7-9, it is characterized in that said holographic lens array plate is affixed on the LED display with the mode of gummed.
11. the LED stereo display method based on holographic lens is characterized in that, comprising:
Simulation object model to real-world object or computing machine generation is taken multi-view image;
LED display shows the three-dimensional frame of the anaglyph sequence formation with different visual angles, or plays a plurality of said three-dimensional frames formation dynamic 3-D videos continuously,
Holographic lens array through LED display the place ahead; The light that makes the different visual angles image that said image sequence distributes at said LED display penetrates forming viewing area with the different reproduction angle of setting, so that people's left eye and right eye receive the image of different visual angles in the said image sequence respectively at said viewing area.
12. the display packing like claim 11 is characterized in that, comprising:
The anaglyph sequence of said different visual angles is the horizontal parallax image sequence that comprises the image at n the visual angle of being gathered by n image unit; N >=2 wherein; The first row pixel from the image at each visual angle; Be listed on the said LED display by the respective column line of pixels of setting order the image at each visual angle; Last row pixel until the image at each visual angle has been arranged, and each row pixel is stitched together and obtains said three-dimensional frame, and people's left eye and right eye receive each row pixel of the image that belongs to different visual angles respectively at viewing area.
13. like claim 11 or 12 described LED stereoscopic display screens; It is characterized in that; The anaglyph sequence of said different visual angles is level and the vertical parallax image sequence that comprises by the image at m * m * n visual angle that n image unit array is gathered, m wherein, n >=2;
Corresponding to each the row image unit in the n row, the first row pixel from the image at each visual angle is listed on the said LED display by the respective column line of pixels of setting order with the image at each visual angle, has arranged until last row pixel of the image at each visual angle;
Each row image unit corresponding to m in capable, the first row pixel from the image at each visual angle is listed on the said LED display by the corresponding line line of pixels of setting order with the image at each visual angle, has arranged until last column pixel of the image at each visual angle;
Pel array is stitched together and obtains the said three-dimensional frame that comprises level and vertical parallax simultaneously; People's left eye and right eye receive each the row pixel that belongs to the different visual angles image in the transverse observation position of setting, and the row under each the row pixel that receives changes with the longitudinal 2 observation position of human eye.
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