CN102868900A - Wide viewing angle and crosstalk-free integrated imaging three-dimensional display device - Google Patents

Wide viewing angle and crosstalk-free integrated imaging three-dimensional display device Download PDF

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Publication number
CN102868900A
CN102868900A CN2012103793082A CN201210379308A CN102868900A CN 102868900 A CN102868900 A CN 102868900A CN 2012103793082 A CN2012103793082 A CN 2012103793082A CN 201210379308 A CN201210379308 A CN 201210379308A CN 102868900 A CN102868900 A CN 102868900A
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China
Prior art keywords
mask plate
black mask
display screen
refractive index
unit
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CN2012103793082A
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Chinese (zh)
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CN102868900B (en
Inventor
王琼华
罗成高
纪超超
邓欢
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四川大学
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Priority to CN201210379308.2A priority Critical patent/CN102868900B/en
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Abstract

The invention provides a wide viewing angle and crosstalk-free integrated imaging three-dimensional display device which comprises a display screen, a medium having high index of refraction, a black mask plate and a micro lens array, wherein the display screen is positioned on a rear focal plane of the micro lens array and used for displaying micro image array, the medium having high index of refraction is filled on the surface of the display screen, the display screen is used for acquiring the largest first-person viewing angle, and the black mask plate is formed on the medium having high index of refraction so that three-dimensional reconstructed images in a sub visual area and image crosstalk and jump between different visual areas are eliminated. The display screen, medium having high index of refraction and the black mask plate are tightly attached one another. An image primitive, the black mask plate and a lens primitive are in one to one correspondence and the centers of the three and aligned.

Description

The integration imaging 3D display unit that a kind of wide visual angle and nothing are crosstalked
Technical field
The present invention relates to three-dimensional (3D) stereo display technique, more particularly, the present invention relates to the integration imaging technology, the integration imaging 3D display unit that espespecially a kind of wide visual angle and nothing are crosstalked.
Background technology
Integration imaging is a kind of technology of utilizing microlens array to come recording and reconstruction 3D scene, and it comprises shooting and shows two processes.In shooting process, employing by many lens cells in the horizontal and vertical directions the microlens array that forms of parallel arranged obtain the steric information of 3D scene, and steric information is recorded on the image recorder that is positioned at the microlens array focal plane obtains image primitive, all image primitives are parallel arranged in the horizontal and vertical directions, has formed little pattern matrix.The microlens array that has identical parameters when general employing is with shooting in procedure for displaying, little pattern matrix is presented at a distance behind the microlens array, according to the light path principle of reversibility, the light-ray condensing reduction that microlens array transmits various image primitives, thereby near microlens array, reconstruct the full real stereo image of 3D scene, this stereo-picture comprises authentic color and continuous parallax information, the beholder need not to wear auxiliary equipment just can obtain to watch the sensation of real scene, and does not have the stereos copic viewing visual fatigue.
Although integration imaging has many advantages, also be far from reaching out of this world degree, factor causes it also to have many weak points because the resolution of present microlens array processing and fabricating difficulty and shooting and display device is limited etc.Accompanying drawing 1 is depicted as conventional integration imaging 3D display unit vision area distribution schematic diagram, wherein, primary vision area is each lens cells and the public domain of the corresponding formed vision area of image primitive, firsts and seconds time vision area is respectively each lens cells and public domain adjacent and the formed vision area of image primitive separately, and the zone between vision areas at different levels is crosstalk zone.Conventional integration imaging 3D display unit watch vision area very narrow, watch the visual angle very little, and between time vision area not at the same level, have picture crosstalk and saltus step, these deficiencies are seriously restricting the performance of watching of integration imaging 3D display unit.Many researchers are respectively for watching visual angle and picture crosstalk problem to propose many solutions, but all are to carry out part for wherein certain Single-issue to improve, and can not be simultaneously to watching visual angle and picture crosstalk problem effectively to improve.
Summary of the invention
The present invention proposes the integration imaging 3D display unit that a kind of wide visual angle and nothing are crosstalked, as shown in Figure 2, it comprises display screen, high refractive index medium, black mask plate and microlens array.Display screen is placed on the back focal plane of microlens array, is used for showing little pattern matrix.The display screen upper surface is filled high refractive index medium, the high refractive index medium upper surface is made the black mask plate, be close between display screen, high refractive index medium and the black mask plate three, and guarantee image primitive, black mask plate unit and lens cells three one by one correspondence and center-aligned.
The light that is sent by the image primitive on the display screen is during through the high refractive index medium outgoing, deviation occurs in the direction of propagation, and in the mode that converges to corresponding lens cells center by the microlens array outgoing, thereby make integration imaging 3D display unit obtain wide primary vision area, obtain the large main perspective of watching.Simultaneously, the black mask plate of making will stop from the light of crosstalking in adjacent and the interphased images unit, thereby the 3D rendering in the elimination time vision area and picture crosstalk and the saltus step between the different vision area form the clear area that does not have 3D rendering.Between primary vision area and clear area, be blanking zone, have the part image retention of 3D rendering in the blanking zone.
Preferably, a kind of wide visual angle of the present invention and comprise following design procedure without the integration imaging 3D display unit of crosstalking.
The first step as shown in Figure 2, determines that the pitch of image primitive, black mask plate unit and lens cells is p, the focal length of microlens array is f, the refractive index of air is n 0, little pattern matrix, black mask plate and microlens array all comprise m* nIndividual unit, wherein, on the horizontal direction mIndividual unit is on the vertical direction nIndividual unit.
Second step is filled refractive index at the upper surface of display screen and is n, thickness is hHigh refractive index medium, make the black mask plate at the high refractive index medium upper surface, be close between display screen, high refractive index medium and the black mask plate three, and guarantee one by one corresponding and center-aligned of image primitive and black mask plate unit, wherein the transparent circle hole radius at the black mask plate unit center place corresponding with each image primitive is r, hWith rDesign satisfy simultaneously formula (1), (2), (3) and (4),
The 3rd step was placed on display screen on the back focal plane of microlens array, and guaranteed image primitive, black mask plate unit and lens cells three one by one correspondence and center-aligned, thereby realized that the integration imaging 3D that wide visual angle and nothing are crosstalked shows.
Description of drawings
Accompanying drawing 1 is conventional integration imaging 3D display unit vision area distribution schematic diagram.
Accompanying drawing 2 is for wide visual angle of the present invention with without the integration imaging 3D display unit vision area distribution schematic diagram of crosstalking.
Accompanying drawing 3 is taken the 3D rendering that obtains for the beholder at the primary vision area of example device of the present invention.
Accompanying drawing 4 is taken the 3D rendering that obtains for the beholder at the blanking zone of example device of the present invention.
Accompanying drawing 5 is taken the 3D rendering that obtains for the beholder in the clear area of example device of the present invention.
Shown by reference numeral in the above-mentioned accompanying drawing is:
1 display screen, 2 microlens arrays, 3 high refractive index mediums, 4 black mask plates.
Should be appreciated that above-mentioned accompanying drawing just schematically, not in proportion drafting.
Embodiment
The below describes in detail and to utilize a kind of wide visual angle of the present invention and without an exemplary embodiments of the integration imaging 3D display unit of crosstalking, the present invention is conducted further description.Be necessary to be pointed out that at this; following examples only are used for the present invention and are described further; can not be interpreted as limiting the scope of the invention; this art skilled person makes some nonessential improvement and adjustment according to the foregoing invention content to the present invention, still belongs to protection scope of the present invention.
The present invention proposes the integration imaging 3D display unit that a kind of wide visual angle and nothing are crosstalked, as shown in Figure 2, it comprises display screen, high refractive index medium, black mask plate and microlens array.Display screen is placed on the back focal plane of microlens array, is used for showing little pattern matrix.The display screen upper surface is filled high refractive index medium, the high refractive index medium upper surface is made the black mask plate, be close between display screen, high refractive index medium and the black mask plate three, and guarantee image primitive, black mask plate unit and lens cells three one by one correspondence and center-aligned.The light that is sent by the image primitive on the display screen is during through the high refractive index medium outgoing, deviation occurs in the direction of propagation, and in the mode that converges to corresponding lens cells center by the microlens array outgoing, thereby make integration imaging 3D display unit obtain wide primary vision area, obtain the large main perspective of watching.Simultaneously, the black mask plate of making will stop from the light of crosstalking in adjacent and the interphased images unit, thereby the 3D rendering in the elimination time vision area and picture crosstalk and the saltus step between the different vision area form the clear area that does not have 3D rendering.Between primary vision area and clear area, be blanking zone, have the part image retention of 3D rendering in the blanking zone.
The design procedure that the integration imaging 3D display unit that a kind of wide visual angle of the present invention and nothing are crosstalked comprises is as follows.
The first step is determined the pitch of image primitive, black mask plate unit and lens cells p=1.27mm, the focal length of microlens array f=5mm, the refractive index of air n 0=1, little pattern matrix, black mask plate and microlens array all comprise m* n=200 * 180 unit.
Second step, high refractive index medium are selected Thomas's high refractive index transparent epoxy resin (THO5020), its refractive index n=1.6, calculated the thickness of high refractive index medium by formula (1), (2), (3) and (4) h=4.01mm, the transparent circle hole radius at black mask plate unit center place r=0.18mm.Need make during design between display screen, high refractive index medium and the black mask plate three and be close to, and guarantee one by one corresponding and center-aligned of image primitive and black mask plate unit.
The 3rd step was placed on display screen on the microlens array back focal plane, and guaranteed image primitive, black mask plate unit and lens cells three one by one correspondence and center-aligned.
Take horizontal direction as example, at viewing distance L=1500mm place, the 3D that measures example device of the present invention watches main perspective to reach θ=10.9 °, and under equal Parameter Conditions, the 3D of conventional integration imaging 3D display unit watches main perspective only to be 4.7 °.Be respectively the beholder shown in accompanying drawing 3, accompanying drawing 4 and the accompanying drawing 5 and take the 3D rendering that obtains in primary vision area, blanking zone and the clear area of example device of the present invention, can find out, this example device only presents complete, 3D rendering clearly at primary vision area, blanking zone presents the part image retention of 3D rendering, and the clear area does not have 3D rendering, eliminated the 3D rendering of time vision area in the conventional integration imaging 3D display unit and picture crosstalk and the saltus step between the different vision area, realized that the integration imaging 3D that wide visual angle and nothing are crosstalked shows.

Claims (2)

1. a wide visual angle and without the integration imaging 3D display unit of crosstalking, it is characterized in that, this device comprises display screen, high refractive index medium, black mask plate and microlens array, display screen is placed on the back focal plane of microlens array, be used for showing little pattern matrix, the display screen upper surface is filled high refractive index medium, the high refractive index medium upper surface is made the black mask plate, be close between display screen, high refractive index medium and the black mask plate three, and guarantee image primitive, black mask plate unit and lens cells three one by one correspondence and center-aligned.
2. a kind of wide visual angle according to claim 1 and without the integration imaging 3D display unit of crosstalking is characterized in that the design procedure of this device is: the first step, determine that the pitch of image primitive, black mask plate unit and lens cells is p, the focal length of microlens array is f, the refractive index of air is n 0, little pattern matrix, black mask plate and microlens array all comprise m* nIndividual unit, wherein, on the horizontal direction mIndividual unit is on the vertical direction nIndividual unit, second step is filled refractive index at the upper surface of display screen and is n, thickness is hHigh refractive index medium, make the black mask plate at the high refractive index medium upper surface, be close between display screen, high refractive index medium and the black mask plate three, and guarantee one by one corresponding and center-aligned of image primitive and black mask plate unit, wherein the transparent circle hole radius at the black mask plate unit center place corresponding with each image primitive is r, hWith rDesign satisfy simultaneously formula With , in the 3rd step, display screen is placed on the back focal plane of microlens array, and guarantees image primitive, black mask plate unit and lens cells three one by one correspondence and center-aligned.
CN201210379308.2A 2012-10-09 2012-10-09 Wide viewing angle and crosstalk-free integrated imaging three-dimensional display device CN102868900B (en)

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CN103297796A (en) * 2013-06-26 2013-09-11 四川大学 Double-vision 3D (three-dimensional) display method based on integrated imaging
CN103702099A (en) * 2013-12-17 2014-04-02 四川大学 Ultra-large visual-angle integrated-imaging 3D(Three-Dimensional)displaying method based on head tracking
CN103869486A (en) * 2014-03-11 2014-06-18 深圳市华星光电技术有限公司 Integrated imaging three-dimensional (3D) display device and system
CN103986926A (en) * 2014-05-26 2014-08-13 四川大学 Crosstalk-free integrated 3D display device
CN104104939A (en) * 2014-07-11 2014-10-15 西安电子科技大学 Wide viewing angle integrated imaging three-dimensional display system
CN104238126A (en) * 2014-09-12 2014-12-24 京东方科技集团股份有限公司 Naked-eye three-dimensional display device
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CN109817088A (en) * 2018-12-26 2019-05-28 合肥通用机械研究院有限公司 A kind of variable visual angle image zoom broadcasting apparatus for demonstrating

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Publication number Priority date Publication date Assignee Title
CN103064136A (en) * 2013-01-16 2013-04-24 福州大学 Combined microlens array for integrated imaging three-dimensional (3D) display and manufacturing method thereof
CN103297796A (en) * 2013-06-26 2013-09-11 四川大学 Double-vision 3D (three-dimensional) display method based on integrated imaging
CN104423052A (en) * 2013-09-06 2015-03-18 张家港康得新光电材料有限公司 3d Image Display Device
CN103702099A (en) * 2013-12-17 2014-04-02 四川大学 Ultra-large visual-angle integrated-imaging 3D(Three-Dimensional)displaying method based on head tracking
CN103702099B (en) * 2013-12-17 2015-08-05 四川大学 A kind of super large visual angle integration imaging 3D display packing based on head-tracking
CN104834174A (en) * 2014-02-12 2015-08-12 台达电子工业股份有限公司 Stereo display equipment and stereo display method applying same
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CN103986926A (en) * 2014-05-26 2014-08-13 四川大学 Crosstalk-free integrated 3D display device
CN103986926B (en) * 2014-05-26 2015-11-11 四川大学 A kind of integration imaging 3D display unit without crosstalk
CN104104939A (en) * 2014-07-11 2014-10-15 西安电子科技大学 Wide viewing angle integrated imaging three-dimensional display system
CN104238126A (en) * 2014-09-12 2014-12-24 京东方科技集团股份有限公司 Naked-eye three-dimensional display device
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CN105137604A (en) * 2015-08-24 2015-12-09 西安电子科技大学 Wide visual angle 3D integration imaging display device based on concentric lens array
CN105487240A (en) * 2015-11-26 2016-04-13 成都工业学院 No-crosstalk integrated imaging double-vision 3D display device
CN105487240B (en) * 2015-11-26 2018-11-30 成都工业学院 A kind of no crosstalk integration imaging double vision 3D display device
CN108919502A (en) * 2018-08-03 2018-11-30 北京航空航天大学 A kind of integration imaging double vision 3D display device based on optics diffuser screen
CN109817088A (en) * 2018-12-26 2019-05-28 合肥通用机械研究院有限公司 A kind of variable visual angle image zoom broadcasting apparatus for demonstrating

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