CN102486575B - Grating-type free stereo display device - Google Patents
Grating-type free stereo display device Download PDFInfo
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- CN102486575B CN102486575B CN201010573306.8A CN201010573306A CN102486575B CN 102486575 B CN102486575 B CN 102486575B CN 201010573306 A CN201010573306 A CN 201010573306A CN 102486575 B CN102486575 B CN 102486575B
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- 238000002955 isolation Methods 0.000 claims abstract description 24
- 238000000034 method Methods 0.000 claims description 23
- 208000003164 Diplopia Diseases 0.000 abstract description 11
- 208000002173 dizziness Diseases 0.000 abstract description 11
- 208000029444 double vision Diseases 0.000 abstract description 11
- 230000004438 eyesight Effects 0.000 description 10
- 238000010586 diagram Methods 0.000 description 7
- 230000002159 abnormal effect Effects 0.000 description 3
- 230000011218 segmentation Effects 0.000 description 3
- 230000000007 visual effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
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Abstract
The invention discloses a kind of grating-type free stereo display device, including image display panel and the grating module being arranged on image display panel front, wherein: image display is pressed the arrangement of right left view dot sequency cycle staggering by described image display panel, and inserts a vacant isolation pixel between each group of viewpoint pixel arrangement cycle.The present invention is possible not only to be inherently eliminated phenomenon of feeling dizzy, and can compatible existing spectacle double vision point 3d program source.
Description
Technical field
The present invention relates to show on a display screen the technology of free stereo image, particularly relate to a kind of grating-type free stereo display device.
Background technology
For 3d Display Technique, the bore hole stereo display technique that need not wear special eyeglasses is ultimate developing direction, and raster type free 3 stereo display technique is to realize a kind of relative maturity of bore hole stereo display and feasible technological means, and raster type free 3 stereo display the most simply surely belongs to double vision point free 3 D display technology, and double vision point free 3 D display technology can directly use a large amount of double vision point 3d program source existed based on eyeglass stereoscopic display mode, compatibility is stronger.
But, double vision point free 3 D display technology there are the improper viewing areas of 50% probability, these improper viewing areas are interspersed with normal viewing area, when beholder's eyes are positioned at improper viewing areas, do not simply fail to produce normal stereoscopic vision, and beholder can be made to be prone to generation feel dizzy phenomenon because visual point image parallax spatially in left and right is inverted, therefore, existing double vision point free 3 D display technology is used to be unable to reach the degree of practical bore hole stereo display.
nullRefer to Fig. 1 a and 1b，Wherein shown in Fig. 1 a，Common double viewpoint auto-stereoscopic display device principle schematic for existing employing slit grating，Device is mainly made up of image display panel and the slit grating being arranged on image display panel front，Belonging to the subimage corresponding with left eye viewpoint and right eye viewpoint, pixel L and R arrange on image display panel interleaving by columns，Human eye is in the position of diagram，During through image shown by each slit viewing image display panel of slit grating，Its left eye sight line can only be fallen in pixel L belonging to left eye viewpoint subimage，Right eye sight line can only be fallen in pixel R belonging to right eye viewpoint subimage，I.e. left eye can only watch left eye viewpoint subimage，Right eye can only see right eye viewpoint subimage，And between two width subimages, there is normal 3d parallax，So that beholder produces normal 3d vision.
With continued reference to Fig. 1 b, this figure be human eye from the position transverse translation shown in Fig. 1 a after one interpupillary distance through the result of image shown by image display panel of each slit viewing of slit grating, an eye line is contrary with the situation of Fig. 1 a around, all fall in the pixel belonging to the viewpoint subimage of mistake, i.e. left eye sees right eye viewpoint subimage, right eye sees left eye viewpoint subimage, i.e. create parallax to be inverted, this not only will not produce normal 3d visual effect, the most easily makes beholder produce the discomfort caused by feeling dizzy.
In order to improve the drawbacks described above of double vision polka-dot raster formula Auto-stereo display, and then develop multiple views raster type free 3 stereo display technique.The viewpoint subimage combination that so-called multiple views raster type free 3 stereo display technique uses two or more to have continuous parallax sequence shows image source as 3d, and along with the increase of number of views, the drawbacks described above existing for double vision polka-dot raster formula free 3 D display technology can be substantially improved, significantly alleviate and make beholder feel dizzy the generation of phenomenon.
Although using multi-view auto stereo display technique can improve the defect (or being called improvement viewing comfort level) causing beholder to feel dizzy due to parallax phenomena of inversion, but this first of improving can be obtained with 3d image resolution ratio and brightness as cost to sacrifice, its two be can only alleviate this produce because parallax is inverted make beholder produce the phenomenon felt dizzy alleviating and cannot eradicate, it three is to considerably increase to include the Image Acquisition complexity to the whole process of terminal demonstration from system, and make almost to become impossible with the system compatible that spectacle double vision point 3d shows or even traditional 2d shows realizing development universal in advance.
Summary of the invention
In order to solve above-mentioned technical problem, it is an object of the invention to provide a kind of grating-type free stereo display device, this device can the spectacle double vision point 3d program source of compatible existing a large amount of existence, and the fatigue phenomenon of feeling dizzy that beholder causes due to parallax phenomena of inversion can be eliminated when bore hole viewing multi-view auto stereoscopically displaying images.
In order to realize foregoing invention purpose, the present invention provides a kind of grating-type free stereo display device, including image display panel and the grating module being arranged on image display panel front, it is characterized in that: image display is arranged by right left view dot sequency cycle staggering by described image display panel, and between each group of viewpoint pixel arrangement cycle, insert a vacant isolation pixel.
The invention has the beneficial effects as follows: the present invention can be inherently eliminated in existing free 3 D display technology the beholder that makes being inverted due to parallax and exist and produce the phenomenon felt dizzy, and can the spectacle double vision point 3d program source of compatible existing a large amount of existence.
Further, the present invention can reduce the number of views of the 3d image source for constituting auto-stereoscopic display device, thus simplify the complexity of the overall process from Image Acquisition to terminal demonstration realizing Auto-stereo display, lifting system and existing spectacle 3d display system and the compatibility of tradition 2d display system, and promote display resolution and the brightness characteristics of auto-stereoscopic display device.
Accompanying drawing explanation
Fig. 1 a and Fig. 1 b is the common double viewpoint auto-stereoscopic display device principle schematic of the slit grating of prior art；
Fig. 2 a is the auto-stereoscopic display device principle schematic of first embodiment of the invention；
Fig. 2 b is that the human eye each the slit through slit grating after the viewing location shown in Fig. 2 a is shifted an interpupillary distance laterally to the left watches the image schematic diagram shown by image display panel；
Fig. 2 c is that the human eye each the slit through slit grating after the viewing location shown in Fig. 2 a is shifted the most to the right an interpupillary distance watches the image schematic diagram shown by image display panel；
Fig. 3 is the auto-stereoscopic display device principle schematic of second embodiment of the invention；
Fig. 4 is the auto-stereoscopic display device principle schematic of third embodiment of the invention；
Fig. 5 is the auto-stereoscopic display device principle schematic of fourth embodiment of the invention；
Fig. 6 is the auto-stereoscopic display device principle schematic of fifth embodiment of the invention.
Detailed description of the invention
Below, technical scheme is described in detail by comparison accompanying drawing and preferred embodiment.
As the first embodiment of the present invention, Fig. 2 a is the common double viewpoint auto-stereoscopic display device principle schematic using slit grating.Unlike traditional design, between staggered each group of adjacent right and left eyes viewpoint sub-image pixels, insert a vacant isolation pixel, arranged by " RLRLRL.... " pixel of prior art and be turned into the arrangement of " RL RL RL... " pixel, human eye watches the image of display on image display panel in the position of diagram through each slit of slit grating, an eye line falls the most exactly in corresponding viewpoint sub-image pixels around, watches normal 3d image.
Fig. 2 b is the result that the human eye each the slit through slit grating after the viewing location shown in Fig. 2 a is shifted an interpupillary distance laterally to the left watches the image shown by image display panel, its right eye sight line fully falls in L pixel that left eye sight line fully falls in vacant isolation pixel, the left view dot image of the simply 2d that human eye is visually observed, will not watch and easily cause the inverted abnormal images of horizontal parallax that beholder feels dizzy.
Fig. 2 c is the result that the human eye each the slit through slit grating after the viewing location shown in Fig. 2 a is shifted the most to the right an interpupillary distance watches the image shown by image display panel, its left eye sight line fully falls in R pixel that right eye sight line fully falls in vacant isolation pixel, what human eye was visually observed is also the right visual point image of a 2d, also will not watch and easily cause the inverted abnormal images of horizontal parallax that beholder feels dizzy.
Therefore, as mentioned above, according to the present invention, when human eye is in specific viewing location, normal 3d image can be watched to show, and when human eye is in optional position, all will not watch easily causing the inverted abnormal images of horizontal parallax that beholder feels dizzy, from without causing discomfort to beholder.
Fig. 3 show the second embodiment of the present invention, in order to avoid what the most non-luminous vacant pixel was formed interferes between black streaking and slit grating at equal intervals, thus produce Moire fringe interference, isolation pixel is set to 0 pixel, and the value of 0 pixel is represented with V0, VR and VL represents R pixel and the value of L pixel respectively, make V0=(VR+VL)/2, make to isolate pixel also luminous according to the picture material of display, and allow it show R pixel and meansigma methods of L pixel, use this design, Moire fringe interference can be eliminated while avoiding producing parallax phenomena of inversion as above.
Fig. 4 show the third embodiment of the present invention, if the value of image pixel is V=Y+C, wherein Y is luminance component, C is chromatic component, in the present embodiment, the value of 0 pixel is represented with V0, the luminance component in R and L pixel value is represented respectively with YR and YL, then make V0=(YR+YL)/2, isolation pixel is i.e. allowed only to show R pixel and the meansigma methods of L pixel intensity component, use this design can reduce and eliminate isolation pixel further the vision of R pixel and L pixel is disturbed and parallax phenomena of inversion, consequent Moire fringe can be avoided again to disturb, as for extract light intensity level from composite video signal, belong to ripe prior art, here is omitted.
nullFig. 5 is the fourth embodiment of the present invention，If the luminance component of picture signal is divided into low frequency component and high fdrequency component，It is represented respectively with Y1 and Yh，Then there is Y=Y1+Yh，The wherein background luminance of Y1 response diagram picture，The luminance detail of Yh response diagram picture，In the present embodiment，The value of isolation pixel is set to V0=(YR1+YL1)/2 or V0=(YR+YL) 1/2，Wherein (YR1+YL1)/2 represent that first the luminance component of R pixel and L pixel being taken its low frequency component respectively takes its meansigma methods again，(YR+YL) luminance component of R pixel and L pixel is first averaged and is taken its low frequency component again by 1/2 expression，Both effects are suitable，Can reduce and eliminate isolation pixel further the vision of R pixel and L pixel is disturbed and parallax phenomena of inversion，Consequent Moire fringe can be avoided again to disturb，As for extracting low frequency component from the luminance signal of image，Can be one-dimensional、Two dimension or three dimensions realize by the way of low-pass filtering，This has belonged to the prior art of maturation the most，Here is omitted.
Fig. 6 is the fifth embodiment of the present invention, for the 4 viewpoint auto-stereoscopic display device schematic diagrams designed according to the present invention, wherein isolation pixel 0 is inserted between the 4th viewpoint pixel and the 1st viewpoint pixel, different designs according to above-described embodiment, value V0 of isolation pixel 0 can be 0, can also be the meansigma methods of the 1st to the 4th viewpoint pixel, or be the meansigma methods of the 1st to the 4th viewpoint pixel luminance component, also can be the low frequency component of the meansigma methods of the 1st to the 4th viewpoint pixel luminance component.
According to presently disclosed method, the design example that Without wishing and above example are provided, it is also possible to design the auto-stereoscopic display device of any viewpoint.
According to presently disclosed method, also it is not limited to use slit grating auto-stereoscopic display device, is also applied for using, such as column mirror grating, the other kinds of grating auto-stereoscopic display device for viewpoint segmentation.
According to presently disclosed method, also it is not limited to be placed in the grating being used for viewpoint segmentation what is called " preposition grating " the formula auto-stereoscopic display device of the viewing side of image display panel, is also applied for being placed between the liquid crystal light modulating layer of image display panel and the backlight played a role in lighting the grating being used for viewpoint segmentation what is called " rearmounted grating " the formula auto-stereoscopic display device of (for image display panel is LCDs).
Although present invention being explained above in association with detailed description of the invention; it should be understood that; those skilled in the art is on the premise of the principle and connotation of the present invention; embodiments of the present invention may be made that various deformation or amendment, and these deformation and amendment all should fall into protection scope of the present invention.
Claims (7)
1. a grating-type free stereo display device, including image display panel and the grating module being arranged on image display panel front, it is characterized in that: image display is arranged by described image display panel by right left view dot sequency cycle staggering, and between each group of viewpoint pixel arrangement cycle, insert an isolation pixel, form the arrangement of " right left view point, isolation pixel, right left view point, isolation pixel ... ", pixel value is defined as V=Y+C, and wherein Y is luminance component, and C is chromatic component；
The pixel value of described isolation pixel is set to right pixel value and the meansigma methods of left pixel value in above-mentioned one group of viewpoint pixel,
V0=(VR+VL)/2；
Or,
The pixel value of described isolation pixel is set to the luminance component in right pixel value and the meansigma methods of the luminance component in left pixel value, V0=(YR+YL)/2；
Or,
The pixel value of described isolation pixel is set to the luminance component of right pixel and left pixel and takes its low frequency component respectively and take its meansigma methods (V0=(YRl+YLl)/2 again)；Or the luminance component of right pixel and left pixel first averaged take its low frequency component (V0=(YR+YL) l/2 again).
Display device the most according to claim 1, it is characterized in that: described isolation pixel is inserted between the 1st viewpoint pixel of the 4th viewpoint pixel and next group viewpoint pixel, form the arrangement of " viewpoint 1, viewpoint 2, viewpoint 3, viewpoint 4, isolation pixel, viewpoint 1, viewpoint 2, viewpoint 3, viewpoint 4, isolation pixel ... ".
Display device the most according to claim 2, it is characterised in that: the meansigma methods that pixel value is the 1st to the 4th viewpoint pixel value of described isolation pixel.
Display device the most according to claim 2, it is characterised in that: the meansigma methods that luminance component is the 1st to the 4th viewpoint pixel luminance component of described isolation pixel.
Display device the most according to claim 2, it is characterised in that: the low frequency component of the meansigma methods that luminance component is the 1st to the 4th viewpoint pixel luminance component of described isolation pixel.
Display device the most according to claim 1, it is characterised in that: described grating module is preposition grating module or rearmounted grating module.
Display device the most according to claim 1, it is characterised in that: described grating module is slit grating module or column mirror grating module.
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| CN201010573306.8A CN102486575B (en) | 2010-12-03 | 2010-12-03 | Grating-type free stereo display device |
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| CN102707446B (en) * | 2012-06-14 | 2014-04-30 | 天马微电子股份有限公司 | Double-vision display device |
| CN112485917B (en) * | 2021-01-11 | 2022-05-17 | 成都工业学院 | Double-vision 3D display device based on rectangular pinhole array |
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| KR101301770B1 (en) * | 2008-01-23 | 2013-09-02 | 엘지디스플레이 주식회사 | Liquid Crystal Display and Dimming Controlling Method thereof |
| KR101362771B1 (en) * | 2008-09-17 | 2014-02-14 | 삼성전자주식회사 | Apparatus and method for displaying stereoscopic image |
| CN101655608B (en) * | 2009-07-22 | 2012-07-11 | 深圳超多维光电子有限公司 | Full resolution stereoscopic display device |
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