CN102193200A - Four-viewpoint high-definition three-dimensional display - Google Patents
Four-viewpoint high-definition three-dimensional display Download PDFInfo
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Abstract
The invention discloses a four-viewpoint high-definition three-dimensional display consisting of an image storing and displaying processor, a flat display screen and a latticelike grating, wherein the latticelike grating is similar to a conventional gap and pillar grating in terms of basic function and is capable of splitting a parallax picture displayed on the flat display screen so as to realize free three-dimensional display. The four-viewpoint high-definition three-dimensional display has the obvious advantages that: the displaying processor synthesizes the sub-pixel of a Pin-shaped structure (Pin is a Chinese character similar to the form of three stacked squares) to be an integral RGB (red, green, blue) three-dimensional pixel; the definition is relatively high and no color aliasing phenomenon exists; and compared with a slant grating three-dimensional display, the four-viewpoint high-definition three-dimensional display is improved for more than one fold in terms of definition.
Description
Technical field:
The present invention relates to a kind of automatic stereoscopic display device, more particularly, relate to a kind of automatic stereoscopic display device of four viewpoint high-resolutions, it is dull and stereotyped that described automatic stereoscopic display device can be used for stereotelevision, 3D game machine, 3D advertisement and other application.
Background technology:
Three-dimensional display has and contains much information, the three-dimensional information of actual scene all can be reproduced the characteristics of coming out, and make the beholder can directly find out distance, the depth of each object the image from display, so the beholder can obtain information more comprehensively and intuitively.Traditional three-dimensional display needs the beholder to wear polarising glass, macyscope or liquid crystal shutter glasses and so on aid, although have good stereoeffect, in many occasions and inapplicable.
In recent years, do not use the automatic stereo technology of glasses to be studied energetically, its representative is the grating stereo display technique, it forms by installing grating additional on the 2D two-way array display, it is rear-mounted to be divided into grating forward type and grating, be grating can be between backlight and matrix display panel or matrix display panel towards that face of spectators, grating can be column mirror grating or slit grating.The grating automatic stereo shows and to be divided into the binocular parallax formula again and multi-viewpoint three-dimensional shows, wherein multi-viewpoint three-dimensional shows to have good degree of freedom and the comfort level of watching, and is fit to many people and watches simultaneously, the emphasis that becomes development and use.
In multi-viewpoint three-dimensional shows, in order to improve lateral resolution, and avoid color aliasing phenomenon, voxel to take two kinds of arrangement modes as shown in Figure 1, R, G, B sub-pixel make up a complete pixel to left down from upper right.The image resolution ratio that multi-viewpoint three-dimensional shows is lower, particularly vertical resolution is reduced to 1/3 of 2D image, therefore be not suitable for showing meticulous image and literal, for harmless lost territory shows high-precision 2D image and literal, but person skilled has been developed the grating of 2D/3D conversion, and when playing three-dimensional program, grating is in the 3D state, when playing the plane program, grating is in the 2D state.
Summary of the invention:
The invention discloses a kind of structure and principle of three-dimensional display, purpose is to provide a kind of four viewpoint high-resolution three-dimensional displays, can show stereo-picture with higher sharpness, need not be transformed into the plane display mode, also can directly show high-precision plane program.
The high definition three-dimensional display is by image storage and playback process device, flat-faced screen and trellis optical grating constitution.The image storage can be finished the stereo-picture storage with the playback process device, and the stereo-picture sampling is synthetic, the function of the full HD real-time demonstration of stereo-picture; Flat-faced screen is full HD liquid crystal display or PDP display; The trellis grating is by the trellis film (1) and the bonding formation of glass (2).The trellis grating is installed in parallel in outside the flat-faced screen (3), and grating must mate with display screen, and shape, size and the spacing of trellis grating printing opacity lattice is crucial parameters.How the sub-pixel that the demonstration of stereo-picture need solve anaglyph reasonably is aligned on the picture element matrix of display screen, so the aligning method of sub-pixel is the most important foundation of stereo display.In the present invention, R, G, B sub-pixel are formed a complete pixel with " product " positive and that fall font structure successively, in the horizontal direction, three the sub-locations of pixels in interval can be separated anaglyph with the trellis grating of same configuration between sub-pixel and the sub-pixel.Stereo-picture on the display screen is through the trellis grating beam splitting, and isolated anaglyph enters spectators' right and left eyes respectively, thereby realizes that free stereo shows.
Description of drawings:
For the convenience of narrating, before technical scheme, earlier accompanying drawing is illustrated.
Fig. 1 is a prior art stereoscopic display screen dot structure synoptic diagram.Each 2D pixel is arranged about by three sub-pixels of RGB and is constituted, it is square pixel, after a 2D pixel split into 3 sub-pixels, be reassembled into new RGB voxel to the lower-left from upper right, the mode that prior art is combined into voxel has two kinds, and wherein the constituted mode of voxel (7) is:
R?B?G?
G?R?B?
B?G?R?
R?B?G?
G?R?B?
B?G?R……
R?B?G?
G?R?B?
B?G?R
The angle that constitutes with vertical direction is 12.53 °, cooperates with 12.53 ° twill grating, has stereo display effect preferably, can eliminate the color aliasing.The constituted mode of voxel (8) is:
R?B?G?
R?B?G?
R?B?G?
R?B?G?
R?B?G?
R?B?G……
R?B?G?
R?B?G?
R?B?G
The angle that constitutes with vertical direction is 18.43 °, cooperates with 18.43 ° twill grating, has stereo display effect preferably, can eliminate the color aliasing.Also exist two sub pixels from left to bottom right symmetrical structure, with above-mentioned two kinds of equivalences fully, explanation no longer separately.The deficiencies in the prior art part is, vertically the resolution of pixel has only originally 1/3, and the stereo display sharpness of overall height cls has only 360P.
Fig. 2 A is the side view of stereoscopic display screen structure, is made of trellis grating and flat-faced screen (3), and the trellis grating is bonded by the trellis film (1) and glass (2); Fig. 2 B is a front view, and flat-faced screen (3) is parallel to each other with the trellis grating, and keeps suitable spacing to be fixedly installed togather.
Fig. 3 is a display screen voxel combination synoptic diagram.A complete 2D pixel is made of about three sub-pixels of arranging (4), is square; Three sub-pixels (5) that complete voxel is arranged by " product " font just or three sub-pixels (6) formation that is down the arrangement of " product " font; 3 sub pixel width in interval between sub-pixel and the sub-pixel, two sub-locations of pixels stagger about adjacent two row sub-pixels and sub-pixel.Obviously, this stereo-picture is that four-barrel is taken, resolution transverse and longitudinal reduce to all that full HD 2D shows 1/2, i.e. (1920/2) * (1080/2), for stereo display, its sharpness is still quite high.
Fig. 4 is a basic model trellis grating synoptic diagram, is made of printing opacity lattice (9) and shading lattice (10).The sub-pixel size and the position of an anaglyph are corresponding one by one among the shape of printing opacity lattice, size and position and Fig. 3, because the projection relation, the gap ratio sub-pixel pitch of printing opacity lattice is smaller, is about 99.7%.On 2*2 complete 2D locations of pixels, the trellis grating has 3 light holes, and its advantage is directly to show high definition 2D image, even the most tiny literal.Basic model trellis grating has individual significant disadvantages, when beholder's head when the height that is fit to moves up and down, crosstalking appears in anaglyph, easily produces the sense of feeling dizzy.
Fig. 5 is a modified trellis grating synoptic diagram, is made of printing opacity lattice (9) and shading lattice (10).On basic model trellis grating basis, the height of printing opacity lattice is reduced by half.When beholder's head when the height that is fit to moves up and down, crosstalk phenomenon will obviously alleviate.If the aperture opening ratio of display screen matrix is lower among Fig. 3, when promptly between pixel column and the row bigger spacing being arranged, to crosstalk complete obiteration, stereo-picture has very high sharpness.At this moment,, just can feel the variation of brightness of image, adjust best viewing location easily, can not produce and feel dizzy even beholder's head arbitrarily moves up and down.
Fig. 6 is a straight burr slit grating synoptic diagram, constitute by horizontal light transmission strip (11) and shading strip (12), the two width about equally, its pitch just in time is the height of one-row pixels, i.e. the some distance of display picture element.It is attached on the display screen (3), is equivalent to and has reduced aperture ratio of pixels, cooperate with modified trellis grating and can eliminate vertical parallax and crosstalk.
Fig. 7 is straight burr slit grating and display screen applying figure, and shading strip (12) has covered sub-pixel (4) two ends up and down, is equivalent to lower the display screen aperture opening ratio, can eliminate vertical parallax and crosstalk.Shortcoming is the brightness that has reduced image.
Fig. 8 is the side view of modified stereoscopic display screen structure, is made of trellis grating, straight burr slit grating (13) and flat-faced screen (3), and the trellis grating is bonded by the trellis film (1) and glass (2).
Fig. 9 is recessed cylindrieal lens plate and display screen applying side view, recessed cylindrieal lens plate (14) fits tightly on display screen (3), and every recessed post mirror just in time covers one-row pixels, through the imaging effect, the height of pixel column is compressed, and can eliminate vertical parallax and crosstalk and do not reduce brightness of image.
Describe the structure and the implementation procedure of four viewpoint high definition three-dimensional displays below in detail.
Image storage is exactly the host computer that can play HD video with the playback process device in fact, and perhaps hard disc player is as long as can finish stereo-picture storage, stereo-picture is synthetic, stereo-picture shows in real time function.At first, stereo-picture need be stored with the split screen form, the split screen form of doing, the order of exactly four width of cloth anaglyphs being pressed " upper left " " upper right " " lower-left " " bottom right " is spliced into a big figure of sphere of movements for the elephants type, be called the branch screen image, resolution is 1920*1080, will divide screen image directly to compile full HD video then, is convenient to compression and management; Before the broadcast, full HD video compression need be become sequence split screen figure earlier, split screen figure is reduced into four width of cloth anaglyphs again, by certain rule sampling synthetic stereo image, real-time play is come out.As seen, the sampling composition rule is the key that realizes stereo display.
Flat-faced screen is made of liquid crystal display or PDP display, can the full HD 1080P video of point-to-point broadcast.The mode that sub-pixel combinations becomes voxel just is being divided into " product " shape (5) and is falling " product " shape (6) as shown in Figure 3, alternately forms successively, and stereo-picture arrangement of subpixels rule is:
R1?G2?B3?R4?G1?B2?R3?G4?B1?R2?G3?B4?R1?G2?B3?R4?G1?B2?R3?G4?B1?R2?G3?B4……
R3?G4?B1?R2?G3?B4?R1?G2?B3?R4?G1?B2?R3?G4?B1?R2?G3?B4?R1?G2?B3?R4?G1?B2……
R1?G2?B3?R4?G1?B2?R3?G4?B1?R2?G3?B4?R1?G2?B3?R4?G1?B2?R3?G4?B1?R2?G3?B4……
R3?G4?B1?R2?G3?B4?R1?G2?B3?R4?G1?B2?R3?G4?B1?R2?G3?B4?R1?G2?B3?R4?G1?B2……
……
R1?G2?B3?R4?G1?B2?R3?G4?B1?R2?G3?B4?R1?G2?B3?R4?G1?B2?R3?G4?B1?R2?G3?B4……
R3?G4?B1?R2?G3?B4?R1?G2?B3?R4?G1?B2?R3?G4?B1?R2?G3?B4?R1?G2?B3?R4?G1?B2……
The present invention adopts the full HD display screen of 1080P, but display resolution is the stereo-picture of (1920/2) * (1080/2), the sharpness that is stereo-picture is 960*540, when obtaining 4 lens stereo image sources, the ratio of width to height of anaglyph cut by 16: 9, uniform zoom becomes the 960*540 pixel then, is spliced into the branch screen image of 1920*1080 by the 2*2 piece.If still image, directly storage; If dynamic image is compiled the full HD video format of 1080P and is stored.
The trellis grating as shown in Figure 4, if the point of display screen matrix is apart from being d, the horizontal pitch of trellis grating is
D＝4d*δ/3
Printing opacity lattice size is (d* δ/3) * (d* δ), shading lattice size is (d* δ) * (d* δ), wherein δ is a correction factor, and grating material refractive index, grating all have relation to distance between the display screen and viewing distance, its value is between 0.995～0.999, need to rely on test correction, maximum three tests just can obtain accurate result.The printing opacity lattice of trellis grating size and shape can suitably be adjusted, but pitch must strictly fix, and the spacing of the grating film and display screen is generally between 2～10mm, and is relevant with the size of display screen.It also is feasible play-overing the plane program with the high definition three-dimensional display, compares flat-panel screens, and its sharpness is suitable substantially.
The synthetic rule of sampling is, 4 width of cloth anaglyphs that each frame split screen image restoring of the full HD video of 1080P is come out all zoom into the RGB image of 1920*1080, as a constituency, extract the corresponding sub-pixel of first width of cloth anaglyph with all subpixel area of white printing opacity lattice correspondence among Fig. 4; With the constituency sub-pixel position that moves to right, from second width of cloth anaglyph, extract corresponding sub-pixel; The sub-pixel position that again constituency moved to right is extracted corresponding sub-pixel from the 3rd width of cloth anaglyph; The constituency sub-pixel position that moves to right is again extracted corresponding sub-pixel from the 4th width of cloth anaglyph.At last, the sub-pixel that extracts in whole 4 width of cloth anaglyphs is merged into a complete stereo-picture, on display screen, shows in point-to-point mode.Have two problems to it is noted that one, above-mentioned sampling synthetic method is a kind of rule of easy understanding, is not high efficiency, need summarize a kind of highly effective algorithm on this basis, directly fast the sampling of 4 width of cloth anaglyphs is synthesized stereo-picture; Its two, Fig. 3 is the microcosmic enlarged drawing of pixel, is the physical arrangement mode of display screen matrix, the constituency correspondence be the physics sub-pixel, and in digital picture, sub-pixel is stored respectively by the RGB passage, need do corresponding conversion when sampling is synthetic.
Four viewpoint high-resolution automatic stereoscopic display devices disclosed by the invention, it is good to have the degree of freedom of watching, and the advantage that sharpness is high is compared with twill grating stereo display, sharpness is more than doubled, and does not directly show high-resolution plane picture and literal as the 2D/3D conversion.Can be widely used in the stereo display of small-sized screens such as mobile phone screen, notebook computer, MP4 and large format LCD, PDP.
Embodiment:
Full HD liquid crystal display with 47 inches is set up one four viewpoint high definition three-dimensional display.
Prepare one 47 inches liquid crystal display, the pixel distance of liquid crystal display is 0.5415mm.With modified trellis grating film as shown in Figure 5 of laser photocomposing machine output, the grating pattern useful area is 1060*600mm, and the horizontal pitch of trellis grating is 0.7196mm, and printing opacity lattice size is 0.1799mm*0.2699mm; With straight burr slit grating film as shown in Figure 6 of laser photocomposing machine output, the width of light transmission strip (11) and shading strip (12) about equally, its pitch just in time is the some distance of display picture element, the trellis grating film is fitted in glass front, the straight burr slit grating film is fitted in the glass rear surface, be close to and be installed on the display screen (3), be equivalent to reduce the aperture opening ratio of display screen matrix, can eliminate the sense of feeling dizzy that vertical parallax is crosstalked and brought.The video frequency program of 4 viewpoints leaves on the hard disk with the split screen form, three-dimensional video-frequency player is finished following function with the speed more than per second 24 frames: full HD video decode becomes single frames to divide screen image, split into 4 width of cloth anaglyphs again,, be presented on the screen the synthetic width of cloth stereo-picture of 4 width of cloth disparity maps by the sampling composition rule in point-to-point mode.
Utilize the frequency multiplication refresh technique of display screen, combine with patented claim 200610110635.2, can under the prerequisite that keeps the stereo display sharpness viewpoint number be brought up to 8, that further improves three-dimensional display watches degree of freedom and comfortableness.
Claims (7)
1. three-dimensional display, by image storage and playback process device, flat-faced screen and trellis optical grating constitution, can show stereo-picture and video that four-barrel is taken, it is characterized in that, the image storage can be finished the stereo-picture storage with the playback process device, sampling is synthetic, functions such as full HD real-time demonstration, R on the display screen, G, the B sub-pixel becomes voxel with positive with " product " that fall font structural group successively, in the horizontal direction, three sub-locations of pixels in interval between the sub-pixel of voxel and the sub-pixel, adjacent two row of stereo-picture are gone up two the sub-locations of pixels that stagger about sub-pixel and sub-pixel, and the trellis grating is installed in parallel in outside the flat-faced screen (3).
2. three-dimensional display as claimed in claim 1, its feature are that also the trellis grating is made of printing opacity lattice (9) and shading lattice (10), and the size of printing opacity lattice and position are corresponding one by one with the size and the position of a disparity map sub-pixel of stereo-picture.
3. three-dimensional display as claimed in claim 2, its feature also be, the height minus of printing opacity lattice is half as large, alleviates the vertical parallax crosstalk phenomenon.
4. three-dimensional display as claimed in claim 3, its feature also are, adopt the lower display screen of pixel aperture ratio, when between pixel column and the row bigger spacing being arranged, can eliminate the vertical parallax crosstalk phenomenon.
5. three-dimensional display as claimed in claim 3, its feature are that also the straight burr slit grating is made of horizontal light transmission strip (11) and shading strip (12), and its pitch just in time is the some distance of display picture element, it is attached to display screen (3) goes up the reduction aperture ratio of pixels.
6. as claim 1 or 3 described three-dimensional displays, its feature also is, recessed cylindrieal lens plate (14) fits tightly on display screen (3), every recessed post mirror just in time covers the one-row pixels of display screen, through the imaging effect, the height of pixel column is compressed, and can eliminate vertical parallax and crosstalk and do not reduce brightness of image.
7. three-dimensional display as claimed in claim 1, its feature also is, stereo-picture adopts the storage of split screen form, and soon four width of cloth anaglyphs are spliced into a big figure of sphere of movements for the elephants type by the order of " upper left " " upper right " " lower-left " " bottom right ", and the resolution of image is 1920*1080.
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Cited By (8)
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| CN102929048A (en) * | 2012-11-14 | 2013-02-13 | 中航华东光电有限公司 | Liquid crystal slit grating capable of being compatible with 2D (2 Dimension) and 3D (3 Dimension) |
| CN102929049A (en) * | 2012-11-14 | 2013-02-13 | 中航华东光电有限公司 | Step grating for stereoscopic displaying and stereoscopic display using same |
| CN103021295A (en) * | 2011-09-26 | 2013-04-03 | 金勇� | High-definition autostereoscopic display |
| CN103513311A (en) * | 2012-09-24 | 2014-01-15 | Tcl集团股份有限公司 | Three-dimensional raster and naked eye three-dimensional display device |
| CN103605174A (en) * | 2013-09-22 | 2014-02-26 | 郭振 | Multi-angle naked-eye three-dimensional imaging grating |
| CN104091524A (en) * | 2014-07-10 | 2014-10-08 | 京东方科技集团股份有限公司 | Double-view display device and drive method thereof |
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| CN103021295A (en) * | 2011-09-26 | 2013-04-03 | 金勇� | High-definition autostereoscopic display |
| CN103513311A (en) * | 2012-09-24 | 2014-01-15 | Tcl集团股份有限公司 | Three-dimensional raster and naked eye three-dimensional display device |
| CN103513311B (en) * | 2012-09-24 | 2016-04-13 | Tcl集团股份有限公司 | A kind of 3 D grating and bore hole 3D display device |
| CN102929048B (en) * | 2012-11-14 | 2017-02-08 | 中航华东光电有限公司 | Liquid crystal slit grating capable of being compatible with 2D (2 Dimension) and 3D (3 Dimension) |
| CN102929049A (en) * | 2012-11-14 | 2013-02-13 | 中航华东光电有限公司 | Step grating for stereoscopic displaying and stereoscopic display using same |
| CN102929048A (en) * | 2012-11-14 | 2013-02-13 | 中航华东光电有限公司 | Liquid crystal slit grating capable of being compatible with 2D (2 Dimension) and 3D (3 Dimension) |
| CN103605174A (en) * | 2013-09-22 | 2014-02-26 | 郭振 | Multi-angle naked-eye three-dimensional imaging grating |
| CN104749786A (en) * | 2013-12-31 | 2015-07-01 | 乐金显示有限公司 | Stereoscopic image display device |
| CN104749786B (en) * | 2013-12-31 | 2017-12-01 | 乐金显示有限公司 | Stereoscopic display device |
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| CN104091524A (en) * | 2014-07-10 | 2014-10-08 | 京东方科技集团股份有限公司 | Double-view display device and drive method thereof |
| US9361839B2 (en) | 2014-07-10 | 2016-06-07 | Boe Technology Group Co., Ltd. | Double-vision display device and method for driving the same |
| CN116047787A (en) * | 2023-03-30 | 2023-05-02 | 深圳臻像科技有限公司 | High-definition color static three-dimensional display system and preparation method |
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Application publication date: 20110921 |