CN102169282B - Multi-view desktop type three-dimensional display device - Google Patents
Multi-view desktop type three-dimensional display device Download PDFInfo
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- CN102169282B CN102169282B CN201110097777.0A CN201110097777A CN102169282B CN 102169282 B CN102169282 B CN 102169282B CN 201110097777 A CN201110097777 A CN 201110097777A CN 102169282 B CN102169282 B CN 102169282B
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Abstract
The invention discloses a multi-view desktop type three-dimensional display device, comprising two projector arrays which are symmetrically distributed, two longitudinal diffusion screens and a desktop structure, wherein the first projector array is placed at one side of the first longitudinal diffusion screen; the second projector array is placed at one side of the second longitudinal diffusion screen; the desktop can be a square-hole-shaped desktop or middle-opened L-shaped desktop; the two longitudinal diffusion screens are embedded in the desktop structure to form a V shape, a right angle, a trapezoid or an arc; and the two projector arrays project images to the center of the desktop through the corresponding diffusion screens. The multi-view desktop type three-dimensional display device provided by the invention has the advantages that high image resolution and high view resolution can be generated and exquisite transverse-parallax three-dimensional images can be observed in large field ranges of two sides or one side of the desktop. Through the structure of embedding in the desktop, the suspension effect of the three-dimensional images can be realized. Relative to a single naked-eye stereoscopic display, the split joint of the three-dimensional images can be realized via the setting of multi-projection so that the space scale of the three-dimensional images is greatly increased.
Description
Technical field
The present invention relates to three-dimensional display apparatus, relate in particular to a kind of multi-view desktop type three-dimensional display device.
Background technology
The future development that display technique is just showing towards high-resolution, three-dimensional panorama.3-D display is different from the conventional two-dimensional demonstration and brings visual depth perception by the whole bag of tricks to the beholder exactly, makes its nature and the third dimension degree information that obtains artificially in the picture.The lot of domestic and foreign dimension display technologies can be divided into generally that hologram three-dimensional shows and two kinds of non-holographic 3-D display.Hologram three-dimensional shows that because of it be the information recording/of very three-dimensional and the 3-D display mode that demonstration is described as future ideality, but needing high-resolution spatial light modulator and superfast data handling system aspect the dynamic demonstration, the progress that these two factors have greatly limited this technology makes it can not enter well practical application, is only applicable at present picked-up and the demonstration of still image.Therefore the non-holographic 3-D display is present main flow display technique, and realizes that the non-holographic dimension display technologies generally can be divided into body 3-D display, integration imaging 3-D display, stereoscopic 3-D display etc.Body 3-D display and stereoscopic 3-D display all have preferably display device appearance at present, yet mostly rely on rotating screen to satisfy the demand that full visual angle is watched based on the display device of these two kinds of methods, so display device structure relative complex cost is also higher.Then there is the problem that much needs solution in traditional integration imaging dimension display technologies at aspects such as visual angle number, picture crosstalk, the viewing area degree of depth and sizes.
The bore hole three-dimensional display apparatus of having developed at present mostly only has the perspective view of a direction, does not have perspective view at other direction, therefore lacks concrete practical application.And the problems such as the image resolution ratio that single naked-eye stereoscopic display shows is low, the visual angle is few and discontinuous, depth feelings is inadequate more make it deduce the application shortage innovation in field at military affairs simulation and sand table.Fundamental purpose of the present invention is to make up demonstration desktop two sides can see respectively the separately three-dimensional display apparatus of side of 3-D view, and satisfies the demand that many people watch from various visual angles.Its advantage is to produce high image resolution, high visual angle resolution, and can all watch the 3-D view that possesses fine and smooth transverse parallaxes in desktop two sides.Fully continuous three-dimensional perception without saltus step can be brought to the observer in fine and smooth interval, visual angle, reduces the discontinuous sense tired out that brings in visual angle in the conventional 3-D display.The structure of inserted in table top can realize the suspension effect of 3-D view, but satisfy many people simultaneously, the from various visual angles demand watched of touch.Utilize simultaneously the splicing of the relative projection realization 3-D view of desktop both sides, can increase the space scale of 3-D view.
Integrated the advantage of conventional three-dimensional display technique, the desktop type three-dimensional display device design of innovation can be widely used in the fields such as military sand table deduction, medical science simulation, the race of playing chess, building sale demonstration.
Summary of the invention
The objective of the invention is to overcome the deficiency of prior art and display device, a kind of multi-view desktop type three-dimensional display device is provided.
Multi-view desktop type three-dimensional display device comprises the first projector array, the second projector array, first vertical diffuser screen, second vertical diffuser screen, three-back-shaped desktop and groove, the opening below of three-back-shaped desktop is provided with first vertical diffuser screen and second vertical diffuser screen, first vertical diffuser screen and second vertical diffuser screen consist of groove, described groove be shaped as V-arrangement, square, trapezoidal or arc, the first projector array is positioned over first vertical diffuser screen one side and projects to first vertical diffuser screen opposite side imaging, and the second projector array is positioned over second vertical diffuser screen one side and projects to second vertical diffuser screen opposite side imaging.
Multi-view desktop type three-dimensional display device comprises the first projector array, the second projector array, first vertical diffuser screen, second vertical diffuser screen, the L shaped desktop of intermediate openings, intermediate openings below and the rear of the L shaped desktop of intermediate openings are provided with first vertical diffuser screen and second vertical diffuser screen, first vertical diffuser screen and second vertical diffuser screen form right angle shape, the first projector array is positioned over first vertical diffuser screen below and projects to first vertical diffuser screen top imaging, and the second projector array is positioned over second vertical diffuser screen rear and projects to second vertical diffuser screen the place ahead imaging.
Described first vertical diffuser screen is transmission-type cylindrical grating or the optical holography screen with identical vertical scattering properties with second vertical diffuser screen, and transmission-type cylindrical grating grid line direction is parallel with three-back-shaped desktop or the L shaped table-top surface of intermediate openings.Described the first projector array and the second projector array are the arrays that a plurality of projectors form, or are comprised of two dimensional display and lens array.Described two dimensional display is LCD, LCOS, PDP, LED, CRT, OLED or projector.
The present invention can produce the 3-D view of high image resolution, high visual angle resolution, dual-projection machine array provides conventional desktop display application required various visual angles range of observation, can show the 3-D view with a series of continuous visual angles again in the angular field of view of each direction.Continuous three-dimensional perception without saltus step can be brought to the observer in fine and smooth interval, visual angle, but and the desktop of the viewing area of various visual angles scope and touch shows design, provide huge prospect in the application of wide spectrum more then for 3-D display.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 (a) is multi-view desktop type three-dimensional display device (three-back-shaped desktop form) overall schematic;
Fig. 1 (b) is multi-view desktop type three-dimensional display device (L shaped desktop form) overall schematic;
Fig. 2 (a) is multi-view desktop type three-dimensional display device image-forming principle longitudinal sectional view one;
Fig. 2 (b) is multi-view desktop type three-dimensional display device image-forming principle longitudinal sectional view two;
Fig. 3 is multi-view desktop type three-dimensional display device image-forming principle vertical view;
Fig. 4 is the array synoptic diagram that two dimensional display and projection lens form;
Fig. 5 (a) is the vertical diffuser screen structural representation one of groove shape;
Fig. 5 (b) is the vertical diffuser screen structural representation two of groove shape;
Fig. 6 is the observing effect synoptic diagram that the right side viewpoint is observed the groove structure center.
Among the figure, the first projector array 1, the second projector array 2, first vertical diffuser screen 3, second vertical diffuser screen 4, three-back-shaped desktop 5, groove 6, the L shaped desktop 7 of intermediate openings.
Embodiment
Shown in Fig. 1 (a), multi-view desktop type three-dimensional display device (three-back-shaped desktop form) comprises the first projector array 1, the second projector array 2, first vertical diffuser screen 3, second vertical diffuser screen 4, three-back-shaped desktop 5 and groove 6, the opening below of three-back-shaped desktop 5 is provided with first vertical diffuser screen 3 and second vertical diffuser screen 4, first vertical diffuser screen 3 and second vertical diffuser screen 4 consist of groove 6, described groove 6 be shaped as V-arrangement, square, trapezoidal or arc, the first projector array 1 is positioned over first vertical diffuser screen 3 one sides and projects to first vertical diffuser screen 3 opposite side imagings, and the second projector array 2 is positioned over second vertical diffuser screen 4 one sides and projects to second vertical diffuser screen 4 opposite side imagings.
Shown in Fig. 1 (b), multi-view desktop type three-dimensional display device (L shaped desktop form) comprises the first projector array 1, the second projector array 2, first vertical diffuser screen 3, second vertical diffuser screen 4, L shaped desktop 7, L shaped desktop 7 intermediate openings below and rear are provided with first vertical diffuser screen 3 and second vertical diffuser screen 4, first vertical diffuser screen 3 and second vertical diffuser screen 4 form right angle shapes, the first projector array 1 is positioned over first vertical diffuser screen 3 belows and projects to first vertical diffuser screen 3 top imagings, and the second projector array 2 is positioned over second vertical diffuser screen 4 rears and projects to second vertical diffuser screen 4 the place ahead imagings.
Described first vertical diffuser screen 3 is transmission-type cylindrical grating or the optical holography screen with identical vertical scattering properties with second vertical diffuser screen 4, and transmission-type cylindrical grating grid line direction is parallel with three-back-shaped desktop 5 or the L shaped desktop of intermediate openings 7 surfaces.Described the first projector array 1, the second projector array 2 are arrays that a plurality of projectors form, or are comprised of two dimensional display and lens array.
Described two dimensional display is LCD, LCOS, PDP, LED, CRT, OLED or projector.
The accompanying drawings course of work of the present invention is as follows:
Multi-view desktop type three-dimensional display device version can be that three-back-shaped desktop is the projection form that left-right symmetric is arranged, and shown in Fig. 1 (a), also can be the projection form of arranging in the L shaped desktop of intermediate openings right angle, shown in Fig. 1 (b).Its scope of watching of Fig. 1 (a) shown device is visual angle, both sides, three-back-shaped desktop top, and the both sides viewpoint only can be watched respectively this visual angle object respective view image information.Its scope of watching of Fig. 1 (b) shown device is intermediate openings L shaped desktop the place ahead and visual angle, top, i.e. this visual angle object respective view image information only can be watched respectively in visual angle, right angle bisector both sides, and both sides viewpoint.
Take three-back-shaped desktop form as example, shown in Fig. 2 (a), multi-view desktop type three-dimensional display device comprises two groups of projector array that embed three-back-shaped desktop 5, one group of groove 6, projector array comprises the first projector array 1, the second projector array 2, and groove 6 comprises and is groove shape symmetrically arranged first vertical diffuser screen 3, second vertical diffuser screen 4.Because the symmetry of mechanism, take one-sided as example, set gradually projector array 1, vertical diffuser screen 3, the image of each projector in the described projector array is that the vertical bar Image Mosaics by three-dimensional body different visual angles image forms, each optical projection system separately with each bar vertical bar image projection to vertical diffuser screen, and projection ray's direction of this vertical bar image with its under view directions identical.The cylindrical grating that first vertical diffuser screen 3 and second vertical diffuser screen 4 use, its grid line direction should be parallel to three-back-shaped desktop 5.Be positioned at view that the viewpoint of the first projector array 1 one sides observes by 2 contributions of the second projector array, being positioned at the view that the viewpoint of the second projector array 2 one sides observes is provided by the first projector array 1, all can only the observation band object in both sides the view at corresponding visual angle, and can't observe the view at visual angle, opposite.
Shown in Fig. 2 (b), the same position projected image of the first projector array 1 on first vertical diffuser screen 3, the same position projected image of the second projector array 2 on second vertical diffuser screen 4, after the two projected image imaging in groove 6 center splicing reconstruction light fields.First vertical diffuser screen 3 and second vertical diffuser screen 4 vertical scattering angles
Should be less than or equal to the angle intervals of the first projector array 1 and the second projector array 2
(when the two is equal, it is seamless spliced in vertical desktop center to be equivalent to visual angle, desktop both sides), guarantee that only obtain suitable watch scope and light can not stopped by the edge of three-back-shaped desktop 5 and groove 6 at the offside visual angle, watch the information that obtains the corresponding visual angle of three-dimensional body to be provided by the view of the first projector array 1 projection at the second projector array 2 one side-looking angles, watch the information that obtains the corresponding visual angle of three-dimensional body to be provided by the view of the second projector array 2 projections at the first projector array 1 one side-looking angles.
As shown in Figure 3,1 the P1-Pn of projector will form V1-Vn viewpoint in groove 6 center imagings and in the right side correspondence separately to vertical diffuser screen 3 projections in the first projector array.See through vertical diffuser screen 3 and watch projector array 1, find that all projector's emergent pupils can be scattered in the vertical all that open form becomes a vertical bar and in the horizontal width remains unchanged, observe groove 6 field of view centers at right side different points of view V1-Vn like this and just can see different views, and the full view that any one viewpoint is observed all be by every projector separately a vertical bar Image Mosaics of projection form, just can observe like this view at the corresponding visual angle of three-dimensional body that is formed by n vertical bar image block in different points of view, the image of each viewpoint is continually varying, thereby is implemented in the viewing effect that the right side obtains transverse parallaxes.The second projector array 2 is consistent therewith with the image-forming principle of second vertical diffuser screen 4.
Described the first projector array 1 and the second projector array 2 respectively by a plurality of P1-Pn of projector, Q1-Qn is transversely arranged forms.If finer and smoother interval, visual angle is provided, projector lens can be according to the actual requirements and size Heterogeneous Permutation in the vertical, keeps the horizontal spacing of adjacent two projectors certain, and keep all to the upper same position projection of directional scattering screen.
As shown in Figure 4, described projector array also can be misplaced by on vertical by two dimensional display and lens array, laterally uniformly-spaced arranging forms.
As shown in Figure 5, described first vertical diffuser screen 3, second vertical diffuser screen 4 are the horizontal transmission-type cylindrical grating without scattering vertically having certain scattering angle, guaranteed that the observer all can see emergent ray in vertically very wide scope in the upper left side of groove 6 and upper right side observation space, obtained three-dimensional perception.
Described groove 6 vertical views are rectangular aperture, and groove shape structure and tilt parameters setting should guarantee not stopped by groove 6 coboundarys mutually imaging in corresponding viewpoint scope by the light of first vertical diffuser screen 3, second vertical diffuser screen 4.
Watch groove 6 field of view centers in any one viewpoint, the full view of seeing is by a series of vertical bar Image Mosaics, and the projector in the projector array of each vertical bar image and a corresponding side is corresponding one by one.The front multi-view image of projector array 1 projection three-dimensional stereographic map, the back side multi-view image of projector array 2 projection three-dimensional stereographic maps, each visual angle image is realized splicing at field of view center.Suppose in three-back-shaped desktop 5 right side field ranges and watch groove 6 field of view centers, arbitrary viewpoint see look seek for by n platform projector's projection in the first projector array 1 of three-back-shaped desktop 5 left sides n vertical bar Image Mosaics form.As shown in Figure 6, the S1 ~ Sn in complete view corresponds respectively to the P1 ~ Pn of projector.
Claims (3)
1. multi-view desktop type three-dimensional display device, it is characterized in that comprising the first projector array (1), the second projector array (2), first vertical diffuser screen (3), second vertical diffuser screen (4), the L shaped desktop of intermediate openings (7), the L shaped desktop of intermediate openings (7) intermediate openings below and rear are provided with first vertical diffuser screen (3) and second vertical diffuser screen (4), first vertical diffuser screen (3) and second vertical diffuser screen (4) form right angle shape, the first projector array (1) is positioned over first vertical diffuser screen (3) below and projects to the top imaging of first vertical diffuser screen (3), and the second projector array (2) is positioned over second vertical diffuser screen (4) rear and projects to second vertical diffuser screen (4) the place ahead imaging.
2. a kind of multi-view desktop type three-dimensional display device according to claim 1 is characterized in that described the first projector array (1) and the second projector array (2) are the arrays that a plurality of projectors form, or is comprised of two dimensional display and lens array.
3. a kind of multi-view desktop type three-dimensional display device according to claim 2 is characterized in that described two dimensional display is LCD, LCOS, PDP, LED, CRT, OLED or projector.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110097777.0A CN102169282B (en) | 2011-04-19 | 2011-04-19 | Multi-view desktop type three-dimensional display device |
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| CN201110097777.0A CN102169282B (en) | 2011-04-19 | 2011-04-19 | Multi-view desktop type three-dimensional display device |
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| CN102169282A CN102169282A (en) | 2011-08-31 |
| CN102169282B true CN102169282B (en) | 2013-01-30 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| EP3552385A4 (en) * | 2016-12-14 | 2020-10-07 | Pure Depth Limited | Fixed depth display for vehicle instrument panel |
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| CN102497572A (en) * | 2011-09-07 | 2012-06-13 | 航天科工仿真技术有限责任公司 | Desktop type space stereoscopic imaging apparatus |
| CN102566251B (en) * | 2012-01-06 | 2014-04-16 | 浙江大学 | Space three-dimensional display device and correction method based on modularization splicing |
| CN104076591B (en) * | 2013-03-25 | 2017-11-14 | 上海科斗电子科技有限公司 | Bore hole 3D optical projection systems and its projection screen |
| CN103513438B (en) * | 2013-09-25 | 2015-11-04 | 清华大学深圳研究生院 | A kind of various visual angles naked-eye stereoscopic display system and display packing thereof |
| CN103616769B (en) * | 2013-12-12 | 2016-06-15 | 北京理工大学 | Panorama three-dimensional display apparatus based on single scialyscope and transmission-type scattering screen |
| CN103616770B (en) * | 2013-12-12 | 2016-02-17 | 北京理工大学 | Based on the panorama three-dimensional display apparatus of multi-projector and transmission-type scattering screen |
| CN103888757A (en) * | 2014-03-24 | 2014-06-25 | 中国人民解放军国防科学技术大学 | Numerous-viewpoint naked-eye three-dimensional digital stereographic projection display system |
| CN104298065B (en) * | 2014-05-07 | 2017-01-25 | 浙江大学 | 360-degree three-dimensional display device and method based on splicing of multiple high-speed projectors |
| CN104883550B (en) * | 2015-05-04 | 2017-11-28 | 联想(北京)有限公司 | A kind of information processing method and electronic equipment |
| CN107290863B (en) * | 2016-03-31 | 2019-08-16 | 台达电子工业股份有限公司 | 3 d display device |
| CN106950627B (en) * | 2017-03-30 | 2023-07-28 | 河南三阳光电有限公司 | Naked eye 3D imaging grating and preparation method thereof |
| CN107390380B (en) * | 2017-05-12 | 2021-08-10 | 上海誉沛光电科技有限公司 | Display device, light guide panel and multilayer suspension display equipment |
| CN107945713A (en) * | 2017-12-17 | 2018-04-20 | 广西特致文化传播有限公司 | A kind of product intelligent shows exhibition booth |
| CN111158162B (en) * | 2020-01-06 | 2022-08-30 | 亿信科技发展有限公司 | Super multi-viewpoint three-dimensional display device and system |
| CN112946914B (en) * | 2021-02-23 | 2024-04-02 | 荆门市探梦科技有限公司 | Transmission type geometric holographic screen with opening angle and its application |
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| JP5187639B2 (en) * | 2009-08-28 | 2013-04-24 | 独立行政法人情報通信研究機構 | 3D display |
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| CN201004152Y (en) * | 2006-07-20 | 2008-01-09 | 北京天强创业电气技术有限责任公司 | Projecting device for displaying image on spherical screen |
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| EP3552385A4 (en) * | 2016-12-14 | 2020-10-07 | Pure Depth Limited | Fixed depth display for vehicle instrument panel |
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