CN102231044A - Stereoscopic three-dimensional display based on multi-screen splicing - Google Patents
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Abstract
The invention discloses a stereoscopic three-dimensional display based on multi-screen splicing. The stereoscopic three-dimensional display comprises a two-dimensional display array, a projection lens array, an aperture array and a directional scattering screen. By utilizing a two-dimensional display pixel region segmentation mode and ensuring each display region of the display array to form a projector together with an aperture and a projection lens which is directly in front of the region, all projectors are staggered in vertical direction and project the images corresponding to the display regions to a same position on the directional scattering screen so as to form an image in front of an arc-shaped screen; and the images displayed in each display region are spliced by the images of a three-dimensional object from different visual angles according to a specific segmentation and recombination method. The stereoscopic three-dimensional display provided by the invention has the advantages of achieving high image resolution and high visual angle resolution and realizing observation of an exquisite three-dimensional image with a horizontal parallax. Compared with the single naked-eye display, stereoscopic three-dimensional display provided by the invention has the advantages that the multi-screen splicing settings ensures that the extension of visual angles is realized, and the spatial scale and viewing range of the three-dimensional images are increased.
Description
Technical field
The present invention relates to three-dimensional display apparatus, relate in particular to a kind of stereoscopic three-dimensional display device based on multi-screen splicing.
Background technology
Display technique just develops towards the direction that high-resolution, three-dimensional panorama show.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 record 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, these two factors have greatly limited this development of technology makes it can not enter practical application well, is only applicable to the picked-up and the demonstration of still image at present.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 display device appearance preferably 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 projection bore hole three-dimensional display apparatus of having developed at present is complex structure mostly, needs a large amount of projector and control circuit, therefore lacks concrete practical application.And 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 not enough more make it use in the virtual reality field and lack innovation.Fundamental purpose of the present invention is to make up one, and expansion is strong, cost is controlled, and has the stereoscopic three-dimensional display device of scope very with great visual angle, 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 watch the 3-D view suspension effect that possesses fine and smooth transverse parallaxes before the arc screen.The three-dimensional perception of no saltus step fully continuously can be brought to the observer at interval in fine and smooth visual angle, reduces the discontinuous sense tired out that brings in visual angle in the conventional 3-D display.The structure of arc screen can realize the suspension effect of 3-D view, but satisfy many people simultaneously, the demand watched of touch from various visual angles.Utilize the mode of modularization multi-screen splicing to realize the expansion at projection visual angle simultaneously, can increase the space scale of 3-D view greatly.
Summary of the invention
The objective of the invention is to overcome the deficiency of prior art and display device, a kind of stereoscopic three-dimensional display device based on multi-screen splicing is provided.
Based on the stereoscopic three-dimensional display device of multi-screen splicing, comprise the two dimensional display array, projection lens array, aperture array, the vertical diffuser screen of arc that set gradually; Wherein each sub-viewing area of obtaining by pixel segmentation of two dimensional display array all with the projection lens array in each projecting lens and the corresponding one by one also constituting projector of each aperture in the aperture array in dead ahead, the image projection that each projector shows its corresponding sub-viewing area simultaneously separately to the vertical diffuser screen of arc same position and in the opposite side imaging, all projecting lens and aperture dislocation are in the vertical successively arranged, and the horizontal spacing of adjacent two projectors is the width of aperture, and all apertures splice arrangement in the horizontal.
The curved distribution respectively of described two dimensional display array, projection lens array, aperture array, and with the vertical diffuser screen of arc be the same center of circle.The vertical diffuser screen of described arc is transmission-type cylindrical grating or the optical holography screen with identical vertical scattering properties, and transmission-type cylindrical grating grid line direction is horizontal.Described two dimensional display is LCD, LCOS, PDP, LED, CRT, OLED or projector.
The present invention can produce high image resolution, high visual angle resolution, and can watch the 3-D view that possesses fine and smooth transverse parallaxes before the arc screen.The mode of modularization multi-screen splicing can realize the expansion of projection angular field of view.The three-dimensional perception of no saltus step fully continuously can be brought to the observer at interval in fine and smooth visual angle, reduces the discontinuous sense tired out that brings in visual angle in the conventional 3-D display.The structure of arc screen can realize the suspension effect of 3-D view, but satisfy many people simultaneously, the demand watched of touch from various visual angles.The design construction of multi-screen splicing one expansion is strong, cost is controlled, and have the stereoscopic three-dimensional display device of scope very with great visual angle, and satisfy the demand that many people watch from various visual angles, for 3-D display provides huge prospect in the application of wide spectrum more.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 (a) is based on the stereoscopic three-dimensional display device overall schematic of multi-screen splicing;
Fig. 1 (b) is based on the stereoscopic three-dimensional display device transverse sectional view of multi-screen splicing;
Fig. 2 is based on the stereoscopic three-dimensional display device longitudinal sectional view of multi-screen splicing;
Fig. 3 (a) is a projection lens array front elevation;
Fig. 3 (b) is two-dimensional display, lens, aperture constituting projector synoptic diagram;
Fig. 4 is that aperture is through vertical diffuser screen scattering synoptic diagram;
Fig. 5 is the vertical diffuser screen structural representation of arc;
Fig. 6 is the observing effect synoptic diagram that intermediate-view is observed the vertical diffuser screen of arc center.
Among the figure, two dimensional display array 1, projection lens array 2, aperture array 3, the vertical diffuser screen 4 of arc, sub-viewing area 5, projecting lens 6, aperture 7, projector 8.
Embodiment
Shown in Fig. 1 (a)/(b), comprise the vertical diffuser screen 4 of two dimensional display array 1, projection lens array 2, aperture array 3, arc that sets gradually based on the stereoscopic three-dimensional display device of multi-screen splicing; Wherein each sub-viewing area 5 of obtaining by pixel segmentation of two dimensional display array 1 all with projection lens array 2 in each projecting lens 6 and the corresponding one by one also constituting projector 8 of each aperture 7 in the aperture array 3 in dead ahead, the image projection that each projector 8 shows its corresponding sub-viewing area 5 simultaneously separately to the vertical diffuser screen 4 of arc same position and in the opposite side imaging, all projecting lens 6 and aperture 7 dislocation are in the vertical successively arranged, and the horizontal spacing of adjacent two projectors 8 is the width of aperture 7, and all apertures 7 splice arrangement in the horizontal.
The 3 curved distributions respectively of described two dimensional display array 1, projection lens array 2, aperture array, and with the vertical diffuser screen 4 of arc be the same center of circle.The vertical diffuser screen 4 of described arc is transmission-type cylindrical grating or the optical holography screen with identical vertical scattering properties, and transmission-type cylindrical grating grid line direction is horizontal.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:
The modular form of forming with 3 LCD is an example, shown in Fig. 1 (a)/(b).Stereoscopic three-dimensional display device based on multi-screen splicing, comprise the two dimensional display array 1 that sets gradually, projection lens array 2, aperture array 3, the vertical diffuser screen 4 of arc, wherein the sub-viewing area 5 of each in the two dimensional display array 1 all with projection lens array 2 in each projecting lens 6 and the corresponding one by one also constituting projector of each aperture 7 in the aperture array 3 in dead ahead, the image projection that each projector 8 shows its corresponding sub-viewing area 5 simultaneously separately to the vertical diffuser screen 4 of arc same position and after the opposite side imaging splicing reconstruction light field, all projecting lens 6 and aperture 7 dislocation are in the vertical successively arranged, and the horizontal spacing of adjacent two projectors 8 is the width of aperture 7, and all apertures 7 splice arrangement in the horizontal.
Image-forming principle according to field stitching, the image that in the two dimensional display array 1 each sub-viewing area 5 shows separately all is that the vertical bar image mosaic by three-dimensional body different visual angles image forms, the image that each sub-viewing area 5 shows separately by corresponding projector 8 each vertical bar image projection same position to the vertical diffuser screen 4 of arc, and projection ray's direction of this vertical bar image is identical with its affiliated view directions, the vertical diffuser screen 4 of described arc shows the image of three-dimensional body different visual angles at horizontal different directions, and the image that any direction shows all is that a vertical bar image mosaic of the image that shown separately by each the sub-viewing area 5 in the two dimensional display array 1 forms, the width of each vertical bar image be on the vertical diffuser screen 4 of arc shown picture traverse divided by the platform number of projector 8.
As shown in Figure 4, all projection lens's groups dislocation are in the vertical successively arranged, and the horizontal spacing of adjacent two projectors 8 is the width of aperture 7, and guarantee that all apertures 7 splice arrangement in the horizontal.For making full use of the space, viewing area of two dimensional display, and guarantee consistance and the operability that lens arra 2 and aperture array 3 are arranged, adopt the mode of vertically dislocation 1/3 to arrange in the present embodiment.
As shown in Figure 6, watch this three-dimensional display apparatus in a viewpoint of the vertical diffuser screen of arc 7 fronts, the full view of seeing is to be got up by a series of vertical bar image mosaics that laterally link to each other, and every vertical bar image is corresponding with a projector 8.
Though be that the present invention is described further by the mode of illustrating and give an example here; but should be realized that; the present invention is not limited to the above-described embodiment and examples; it is illustrative that the description of preamble only is considered to; and it is nonrestrictive; those skilled in the art can make multiple conversion or modification, and the short of scope and spirit essence of leaving in the claims to be established all is considered as within protection scope of the present invention.
Claims (4)
1. the stereoscopic three-dimensional display device based on multi-screen splicing is characterized in that comprising the two dimensional display array (1), projection lens array (2), aperture array (3), the vertical diffuser screen of arc (4) that set gradually; Wherein each sub-viewing area (5) of obtaining by pixel segmentation of two dimensional display array (1) all with projection lens array (2) in each projecting lens (6) and the corresponding one by one also constituting projector (8) of each aperture (7) in the aperture array (3) in dead ahead, the image projection that each projector (8) shows its corresponding sub-viewing area (5) simultaneously separately arrive on the vertical diffuser screen of arc (4) same position and in the opposite side imaging, all projecting lens (6) and aperture (7) dislocation are in the vertical successively arranged, and the horizontal spacing of adjacent two projectors (8) is the width of aperture (7), and all apertures (7) splice arrangement in the horizontal.
2. a kind of stereoscopic three-dimensional display device according to claim 1 based on multi-screen splicing, it is characterized in that the curved distribution respectively of described two dimensional display array (1), projection lens array (2), aperture array (3), and with the vertical diffuser screen of arc (4) be the same center of circle.
3. a kind of stereoscopic three-dimensional display device according to claim 1 based on multi-screen splicing, it is characterized in that the vertical diffuser screen of described arc (4) is transmission-type cylindrical grating or the optical holography screen with identical vertical scattering properties, transmission-type cylindrical grating grid line direction is horizontal.
4. a kind of stereoscopic three-dimensional display device based on multi-screen splicing according to claim 1 is characterized in that described two dimensional display is LCD, LCOS, PDP, LED, CRT, OLED or projector.
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