CN201063782Y - Free stereo display capable of implementing display mode switch - Google Patents
Free stereo display capable of implementing display mode switch Download PDFInfo
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- CN201063782Y CN201063782Y CNU2007200375169U CN200720037516U CN201063782Y CN 201063782 Y CN201063782 Y CN 201063782Y CN U2007200375169 U CNU2007200375169 U CN U2007200375169U CN 200720037516 U CN200720037516 U CN 200720037516U CN 201063782 Y CN201063782 Y CN 201063782Y
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Abstract
The utility model discloses an auto-stereo display capable of realizing the display mode switch, comprising an image display system and an image processing system, and the utility model is characterized in that a parallax grating system with the function of display mode switch between 2D mode and 3D mode is positioned behind the image display system, and the parallax grating system is composed of two polaroids and two optical arrays. The display utilizes two optical planes consisting of two birefringence units to form a grating barrier with black and white spacing bars by changing the relative position to realize the function of display mode switch between 2D mode and 3D mode. The parallax grating system arranged behind the display system can transmit all of incident light in 2D mode, and can form grating to separate the left-eye image and the right-eye image in 3D mode.
Description
Technical field
The utility model relates to display, specifically relates to a kind of auto-stereoscopic display of realizing that display mode switches.
Background technology
The people is to the trickle observation of real world, be simultaneously the observation of Same Scene or object to be realized by human eye, owing to the nuance of two eyes to observed scenery, make observed scenery except presenting color, light and shade, also comprised between scenery relative position and and the observer between spatial informations such as position.Show and extensively be 2D at present by the employed display device of people, can only reappear the color of scenery and light and shade and can't reappear original spatial information, and to truly reappear scenery 3D Presentation Functions such as color, light and shade and spatial information display device we be referred to as three-dimensional display.Present various stereoscopic display device has been known to the public by variety of way, mainly contain Worn type (promptly need wear auxiliary eyeglasses) and free stereo formula (promptly need not wear auxiliary equipment) on the implementation, latter's (being auto-stereoscopic display) will be the developing direction of three-dimensional display.
It is following several that current auto-stereoscopic display must realize that kind mainly contains: post lens type, raster pattern and holographic imaging formula.Owing to the principle complexity of holographic imaging, scenery record and realization require all than higher objective condition, so that never have very big progress.Relatively be extensive use of at present and be mainly preceding two kinds by the method that the people knows, as shown in Figure 1, they all are based on the method for binocular parallax, allow user's right and left eyes observe the anaglyph that has minute differences accordingly respectively, thereby form stereoscopic visual effect.For making left eye and right eye observe the image with parallax respectively, three-dimensional display needs and two width of cloth images can be sent to the different pixel region of display respectively, and the realization right and left eyes by optical system receives different images again.Typical implementation comprises the use parallax grating, at display surface set of cylindrical lenses and raster pattern is installed.How realizing showing two dimensional image on parallax grating formula three-dimensional display, is the prior art technical issues that need to address.
The utility model content
Technical problem to be solved in the utility model is to provide a kind of and can realize the auto-stereoscopic display that display mode switches by parallax grating.
For solving the problems of the technologies described above, the technical solution of the utility model is a kind of auto-stereoscopic display of realizing that display mode switches, comprise image display system, the image source treatment system is characterized in that: be provided with the parallax grating system with 2D and 3D display mode handoff functionality before being positioned at described image display system; Described parallax grating system is used to the optical flat that utilizes two to be made of two kinds of birefringence elements, changes its relative position by mechanical mechanism, produces the black and white grating barrier of striped at interval.
Described parallax grating system comprises: first polarizer that is provided with successively is used for the light that transmission has first polarization direction; First optical flat is used to make polarised light to rotate to different directions; Second optical flat continues to identical or different direction rotation polarised light on the basis of first optical flat; Second polarizer is used to the light that stops that its polarization direction is different, sees through the polarised light identical with its polarization, thereby forms chequered with black and white parallax grating.Can in very little space, use minute movement between two optical flat arrays to realize switching between 2D pattern and 3D pattern by mechanical mechanism.
Can realize in the auto-stereoscopic display of display mode switching, the connected mode of described first optical flat, second optical flat and mechanical mechanism, be on the basis of having fixed first optical flat, second optical flat is fixed in one side of framework by elastic component, install a pin member and be complementary with framework at the place in the middle of its relative another side, its similar is in automatic ball pen, by pin member by advance with by going out, changed the position of second optical flat, to reach the conversion of 2D/3D display mode.
Can realize the auto-stereoscopic display that display mode switches, described parallax grating system, all incident lights of transmission under two-dimensional model come separate left image and eye image and form grating under three dimensional pattern.
A kind of auto-stereoscopic display of realizing that display mode switches owing to adopt said structure, comprises image display system, and the image source treatment system is provided with the parallax grating system with 2D and 3D display mode handoff functionality after being positioned at described image display system; The parallax grating system is made of two polarizers, two optical arrays.Display utilizes two optical flats that are made of two kinds of birefringence elements, by changing its relative position, produces the black and white grating barrier of striped at interval, can reach the function of switching with this between 2D and 3D pattern.Be installed in the parallax grating after the display system, all incident lights of transmission under two-dimensional model come separate left image and eye image and form grating under three dimensional pattern.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail;
Figure 1A, Figure 1B are the stereo display effect schematic diagram of prior art post lens, grating;
Fig. 2 A, Fig. 2 B are a kind of auto-stereoscopic display structural representation of realizing that display mode switches of the utility model;
Fig. 3 A, Fig. 3 B are the utility model display device structure schematic diagram under the 2D pattern;
Fig. 4 A, Fig. 4 B, Fig. 4 C are the different arrangement mode schematic diagrames with two width of cloth images that are used for stereo display of arranging of pixel in the display system shown in Figure 2;
Fig. 5 is that the parallax grating 2D of system shown in Figure 2 shows the situation schematic diagram;
Fig. 6 is that the parallax grating 3D of system shown in Figure 2 shows the situation schematic diagram.
In Fig. 2, Fig. 3, Fig. 5, Fig. 6,1, image display system, 11, first polarizer; 12, second polarizer; 21, first optical flat; 22, second optical flat.
Embodiment
Figure 1A, Figure 1B are present prior art two kinds of free 3 D display technologies, raster pattern and post lenticulation formula commonly used.They are the principles of utilizing binocular parallax, by optical module make the people about two experience the image that two width of cloth have parallax respectively, thereby produce the effect of stereoscopic vision.
Fig. 2 has introduced the parallax grating that can realize the 2D/3D conversion in this patent.Fig. 2 A is a stereogram, and Fig. 2 B is a vertical view.1 is image display system among the figure, and first polarizer 11 is respectively the different polarizer in polarization direction with second polarizer 12, and first polarizer 11 is the vertical polarization sheet, and second polarizer 12 is the horizontal polarization sheet.In order to eliminate chromatic dispersion and Morie fringe, image display system 1 is inserted two width of cloth images successively mutually with inclination angle a, and this moment, first optical flat 21 and second optical flat 22 were the match map image source, and birefringence element is wherein also arranged with identical inclination angle.
Fig. 3 is a parallax grating structural representation under 2D shows for display, and Fig. 3 A is a stereogram, and Fig. 3 B is a vertical view.
Fig. 4 shows is the arranging (Fig. 4 A) and the different arrangement modes of two width of cloth images that are used for stereo display of pixel in the display system.Fig. 4 B has shown the situation that two width of cloth images are arranged with straight column mode, the method is comparatively simple in operation, and the convenience such as making at optical element are comparatively easily gone, and have seriously disturbed the effect of stereo display but serious chromatic dispersion and Morie fringe phenomenon appears in the stereo display meeting under this mode.Fig. 4 c is the arrangement mode of our two width of cloth image oblique cuttings that adopt, greatly reduces the bad phenomenon that occurs among Fig. 4 B, better shows stereo-picture.
In the display system 1, the critical component of demonstration---in the liquid crystal cell, the arranging shown in Fig. 4 A of pixel, R, G, B sub-pixel be adjacent arranging that is listed as respectively.Realize the demonstration of 3D, need be unit demonstration two width of cloth images (left-eye image L and eye image R) at interval successively with the pixel, by parallax grating left-eye image is only received by left eye, eye image is only received by right eye, as Fig. 4 B, shown in Fig. 4 C, wherein owing to the rule of each sub-pixel is arranged, when two width of cloth images that are used for stereo display are shown in liquid crystal display screen, if adopt the mode of Fig. 4 B, thereby arranging of parallax grating carried out stereo display for corresponding with image, certainly will it is consistent with image distribution, the row shape of pixel is arranged and image and this regular shape of three kinds of parallax grating are arranged, and will cause Morie fringe and dispersion phenomenon, and our display system 1 has adopted the image inserted mode of Fig. 4 C for this reason, two width of cloth images are inserted successively mutually behind the inclination a angle, for stereo display provides image source.
Fig. 5 and Fig. 6 have introduced the formation and the disappearance of the parallax grating under 3D, the 2D respectively.First optical flat 21 is to be made of birefringence element 211,212 two kinds of birefringence elements of birefringence element, and for cooperating arranging of stereogram image source, two birefringence elements are with equidistant being arranged in this planar array of inclination angle a in this optical flat; Second optical flat 22 is to be made of birefringence element 223,224 two kinds of birefringence elements of birefringence element, and it is also with equidistant being arranged in this planar array of inclination angle a.In this two optical array, birefringence element 211, birefringence element 213 and birefringence element 212,224 are respectively two kinds of identical birefringence elements, wherein the effect of birefringence element 211, birefringence element 213 is phase delay+45 degree with incident polarized light, and the effect of birefringence element 212, birefringence element 224 is phase delay-45 degree with incident polarized light.
Among Fig. 5, the light that is sent by backlight in display system 1 is through liquid crystal display screen, during again by first polarizer 11, its all light all is vertical polarizations, this moment, light was through first optical flat 21 time, because birefringence element 211 in first optical flat 21 and birefringence element 212 allow phase delay ± 45 degree of polarised light respectively, the polarised light by optical flat 21 will be ± the orthogonal two kinds of polarization states of 45 degree; Then when light sees through second optical flat 22, birefringence element 223 in second optical flat 22 and birefringence element 224 also allow phase delay ± 45 of polarised light spend respectively, birefringence element 211 is relative with birefringence element 223 in this moment two optical flats, birefringence element 212 is relative with birefringence element 224, the polarised light that sees through birefringence element 223 and birefringence element 224 respectively continues rotation 45 degree on the basis of original phase delay separately, obtained the polarised light of horizontal polarization; Second polarizer 12 is the horizontal polarization sheet, and the light of this moment will all see through, and the 2D that is that show this moment shows.
In Fig. 6, shown two optical flats 21 and 22 have had small moving by mechanical mechanism.When this moment, light was through first polarizer 11, its all light all is vertical polarizations, during again through first optical flat 21, because the effect of birefringence element 211 and birefringence element 212, allowing the phase delay of polarised light ± 45 degree respectively, the polarised light by first optical flat 21 will be ± two kinds of polarization states of 45 degree; During again through second optical flat 22, be used for first optical flat 21 and second optical flat 22 has certain skew each other, this moment, birefringence element 211 was relative with birefringence element 223, the part that birefringence element 212 and birefringence element 224 are relative, polarised light continues to rotate 45 degree on the original basis and has obtained the polarised light of horizontal polarization, thereby has seen through second polarizer 12; And birefringence element 211 is relative with birefringence element 224, the part that birefringence element 212 and birefringence element 223 are relative, because birefringence element 211 and birefringence element 224, the direction of rotation of polarised light is opposite when birefringence element 212 and birefringence element 223, so it is relative with birefringence element 224 that see through birefringence element 211 this moment, that part of polarised light that birefringence element 212 and birefringence element 223 are relative, its polarization direction is by having returned to original state, it is vertical polarization, it is vertical with the polarization direction of second polarizer 12, so light can't see through second polarizer 12.Promptly formed a kind of chequered with black and white parallax grating this moment.This unit became and was parallax grating this moment, thereby reached the pattern that 3D shows.
Claims (2)
1. the auto-stereoscopic display that can realize that display mode switches, comprise image display system (1), the image source treatment system is characterized in that: be positioned at the preceding parallax grating system with 2D and 3D display mode handoff functionality that is provided with of described image display system (1);
Described parallax grating system is used to the optical flat that utilizes two to be made of two kinds of birefringence elements, changes its relative position by mechanical mechanism, produces the black and white grating barrier of striped at interval.
2. the auto-stereoscopic display of realizing that display mode switches according to claim 1 is characterized in that: described parallax grating system comprises: first polarizer (11) that is provided with successively is used for the light that transmission has first polarization direction; First optical flat (21) is used to make polarised light to rotate to different directions; Second optical flat (22) continues to identical or different direction rotation polarised light on the basis of first optical flat (21); Second polarizer (12) is used to the light that stops that its polarization direction is different, sees through the polarised light identical with its polarization, thereby forms chequered with black and white parallax grating.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200375169U CN201063782Y (en) | 2007-05-11 | 2007-05-11 | Free stereo display capable of implementing display mode switch |
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| CNU2007200375169U CN201063782Y (en) | 2007-05-11 | 2007-05-11 | Free stereo display capable of implementing display mode switch |
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| CN201063782Y true CN201063782Y (en) | 2008-05-21 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101726911B (en) * | 2008-10-10 | 2012-03-21 | 纬创资通股份有限公司 | Three-dimensional display device and system, and three-dimensional display method |
| WO2012079205A1 (en) * | 2010-12-17 | 2012-06-21 | 湖南创图视维科技有限公司 | Display system and method thereof |
| RU2490818C1 (en) * | 2012-02-28 | 2013-08-20 | Василий Александрович ЕЖОВ | Autostereoscopic display with full-screen 3d resolution (versions thereof) and method of controlling active parallax barrier of display |
| CN103792672A (en) * | 2014-02-14 | 2014-05-14 | 成都京东方光电科技有限公司 | Three-dimensional display assembly, liquid crystal display panel and display device |
| CN103945203A (en) * | 2013-12-19 | 2014-07-23 | 上海天马微电子有限公司 | Stereoscopic image display device |
| CN106707508A (en) * | 2015-11-12 | 2017-05-24 | 崔海龙 | Cap type virtual reality display image system |
-
2007
- 2007-05-11 CN CNU2007200375169U patent/CN201063782Y/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101726911B (en) * | 2008-10-10 | 2012-03-21 | 纬创资通股份有限公司 | Three-dimensional display device and system, and three-dimensional display method |
| WO2012079205A1 (en) * | 2010-12-17 | 2012-06-21 | 湖南创图视维科技有限公司 | Display system and method thereof |
| US9204139B2 (en) | 2010-12-17 | 2015-12-01 | Celvision Technologies Limited | Display system and method thereof |
| RU2490818C1 (en) * | 2012-02-28 | 2013-08-20 | Василий Александрович ЕЖОВ | Autostereoscopic display with full-screen 3d resolution (versions thereof) and method of controlling active parallax barrier of display |
| CN103945203A (en) * | 2013-12-19 | 2014-07-23 | 上海天马微电子有限公司 | Stereoscopic image display device |
| CN103792672A (en) * | 2014-02-14 | 2014-05-14 | 成都京东方光电科技有限公司 | Three-dimensional display assembly, liquid crystal display panel and display device |
| CN103792672B (en) * | 2014-02-14 | 2016-03-23 | 成都京东方光电科技有限公司 | Stereo display assembly, liquid crystal panel and display device |
| US10488672B2 (en) | 2014-02-14 | 2019-11-26 | Boe Technology Group Co., Ltd. | Stereoscopic display component, liquid crystal panel and display device |
| CN106707508A (en) * | 2015-11-12 | 2017-05-24 | 崔海龙 | Cap type virtual reality display image system |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: AVIC HUADONG PHOTOELECTRIC CO., LTD. Free format text: FORMER OWNER: HUADONG PHOTOELECTRIC TECHNIQUE INSTITUTE OF ANHUI PROVINCE Effective date: 20110217 |
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| C41 | Transfer of patent application or patent right or utility model | ||
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Free format text: CORRECT: ADDRESS; FROM: 241000 HUAXIA SCIENCE AND TECHNOLOGY PARK, CHENGNAN HIGH-TECH. DEVELOPMENT AREA, WUHU CITY, ANHUI PROVINCE TO: 241000 HUAXIA SCIENCE AND TECHNOLOGY PARK, CHENGNAN HIGH-TECH. DEVELOPMENT AREA, YIJIANG DISTRICT, WUHU CITY, ANHUI PROVINCE |
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| TR01 | Transfer of patent right |
Effective date of registration: 20110217 Address after: 241000 Anhui Province, Wuhu city Yijiang District South high tech Development Zone Technology Park mansion Patentee after: Avic Huadong Photoelectric Co., Ltd. Address before: 241000 Anhui Province, south of the city of Wuhu high tech Development Zone Technology Park mansion Patentee before: Huadong Photoelectric Technique Institute of Anhui Province |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080521 |