CN104216128A - Display device and display system of full-parallax three-dimensional light field - Google Patents
Display device and display system of full-parallax three-dimensional light field Download PDFInfo
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- CN104216128A CN104216128A CN201410440084.0A CN201410440084A CN104216128A CN 104216128 A CN104216128 A CN 104216128A CN 201410440084 A CN201410440084 A CN 201410440084A CN 104216128 A CN104216128 A CN 104216128A
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Abstract
The invention discloses a display device of a full-parallax three-dimensional light field. The display device comprises a display, a lens array and a holographic function screen. The display is used for displaying image information acquired from different directions. The lens array is used for projecting the image information displayed by the display to the holographic function screen. The holographic function screen is used for providing the light field with a full-parallax three-dimensional effect. The display device and the display system are capable of enabling lookers to look from different angles and different distances, and the lookers can see right light field information.
Description
Technical field
The present invention relates to display technique field, be specifically related to a kind of display device, 3 d light fields display system of full parallax 3 d light fields.
Background technology
Free 3 D display technology can bring more real visual experience to beholder.Increasing attention is also subject to the research and apply of Auto-stereo display.In order to efficient display effect of realizing ideal, propose a large amount of display modes in recent years, but have certain topical type.Society has urgent demand to efficient Auto-stereo display mode.
Hologram functional screen has become the important devices of free stereo light field display.Each point on hologram functional screen as required, can send the light of different colours and intensity to different directions.Utilize this principle, by the projector array of specific arrangement by original information projection on hologram functional screen, the spatial light light field of the original can be obtained.
Liquid crystal display display technique is more and more ripe, and current display panels luminance proportion is not easy to change, can watch visual angle close to 180 degree.Resolution also constantly breaks through along with the raising of technology in recent years, and current 4K (3840*2160) resolution has become the main flow resolution of liquid crystal display.
Viewpoint shows: current modal free stereo viewpoint display utilizes liquid crystal panel and column mirror grating to combine and realizes, and displaying principle and effect are as shown in Figure 1.This display mode brings the restriction of viewing scope to beholder, requires that beholder can only move in certain distance, certain limit, and in moving process, there will be manifesting of stereo inversion.This kind of display mode is by providing disparity map to realize stereoscopic vision respectively to the right and left eyes of people, so the display effect of this display mode and real-world object have certain difference.
Light field shows: light field display make use of projector array and hologram functional screen is that beholder has reproduced the spatial light field of the original really, and can meet beholder and move freely within the specific limits and the demand of observing object, displaying principle as shown in Figure 2.Owing to needing to introduce a large amount of projector array, so the bulky inconvenience application of a whole set of display system, regulate difficult unfavorable maintenance.And easily there is the problem such as color and luminance deviation owing to working long hours in projector, all can cause the variation of display effect.
Summary of the invention
Technical matters to be solved by this invention is viewpoint display mode of the prior art brings viewing scope restriction to beholder, requires that beholder can only move in certain distance, certain limit, and in moving process, there will be manifesting of stereo inversion; Light field display mode of the prior art needs to introduce a large amount of projector array, so the bulky inconvenience application of a whole set of display system, regulates difficult unfavorable maintenance.And easily there is the problem such as color and luminance deviation owing to working long hours in projector, all can cause the variation of display effect.
For this purpose, first aspect, the invention provides a kind of display device of full parallax 3 d light fields, described display device comprises: display, lens arra, hologram functional screen;
Described display is for showing the image information collected from different directions;
The image information that described lens arra is used for display shows projects described hologram functional screen;
Described hologram functional screen has the light field of full parallax stereoeffect for providing.
Optionally, the lens number in described lens arra is determined by the viewing area number of described display.
Optionally, the viewing area number of described display is N × N, and described N is positive integer.
Optionally, the lens number in described lens arra is N × N, and described N is positive integer.
Optionally, the lens in described lens arra are lighttight square structure, and the center of described square structure has a printing opacity circular hole.
Optionally, described display is liquid crystal display, and the lens in described lens arra are Fresnel Lenses.
Optionally, the spacing of described display and described lens arra is l
2, the distance of described lens arra and described hologram functional screen is l
1, described l
1and l
2meet following formula:
Wherein, W is the width of display, and f is the focal length of lens, W
ffor the spacing of lens in lens arra, W
0for the width of displaying contents on hologram functional screen, θ is viewing field of view angle.
Second aspect, the present invention also proposes a kind of 3 d light fields display system, described display system comprises: at least two 3D light displays show that concatenation unit, number and 3D light display show the hologram functional screen that concatenation unit number is identical, and the surface of described hologram functional screen is smooth cambered surface;
Described 3D light display shows that concatenation unit comprises: display and lens arra;
Adjacent 3D light display shows that the angle between concatenation unit is predetermined angle, is smoothly connected between adjacent hologram functional screen.
Compared to prior art, full parallax 3 d light fields display device of the present invention, 3 d light fields display system make beholder also there will be manifesting of stereo inversion in moving process; Beholder can be watched with different distance from different perspectives, and beholder can watch correct field information.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 shows the schematic diagram of free stereo viewpoint display;
Fig. 2 shows the schematic diagram of hologram functional screen light field display;
Fig. 3 shows the display device structure figure of the full parallax 3 d light fields in embodiment one;
Fig. 4 shows the display device structure figure of the full parallax 3 d light fields in embodiment two;
Fig. 5 shows the imaging schematic diagram of display device in embodiment two;
Fig. 6 shows the 3 d light fields display system in embodiment three.
Embodiment
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment one:
The present embodiment discloses a kind of display device of full parallax 3 d light fields, and as shown in Figure 3, described display device comprises: display, lens arra, hologram functional screen;
Described display is for showing the image information collected from different directions;
The image information that described lens arra is used for display shows projects described hologram functional screen;
Described hologram functional screen has the light field of full parallax stereoeffect for providing.
Lens number in described lens arra is determined by the viewing area number of described display.
The viewing area number of described display is N × N, and described N is positive integer.
Lens number in described lens arra is N × N, and described N is positive integer.
Lens in described lens arra are lighttight square structure, and the center of described square structure has a printing opacity circular hole.
Described display is liquid crystal display, and the lens in described lens arra are Fresnel Lenses.
The spacing of described display and described lens arra is l
2, the distance of described lens arra and described hologram functional screen is l
1, described l
1and l
2meet following formula:
Wherein, W is the width of display, and f is the focal length of lens, W
ffor the spacing of lens in lens arra, W
0for the width of displaying contents on hologram functional screen, θ is viewing field of view angle.
The display device of the disclosed full parallax 3 d light fields of the present embodiment makes beholder watch with different distance from different perspectives, and beholder can watch correct field information.
Embodiment two:
The present embodiment discloses a kind of display device of full parallax 3 d light fields, and as shown in Figure 4, in the present embodiment, described display device can comprise: liquid crystal display, fresnel lens array, hologram functional screen.
The image information (image information gathered from different perspectives being carried out to the arrangement of level and vertical direction) utilizing liquid crystal display to show to collect from different directions, information projection on liquid crystal display to the common region on hologram functional screen, finally can be obtained the light field display with full parallax stereoeffect by dependence fresnel lens array from the front of hologram functional screen.
The display device of the present embodiment is in order to eliminate distortion, and reduce crosstalk, Fresnel Lenses only has center perforate, and other positions are light tight.
The viewing area number of liquid crystal display described in the present embodiment is 9 × 9, and image-forming principle as shown in Figure 5.The overall width of display panels is W, and the width of every portions of display content is W/9, and the focal length of Fresnel Lenses is f, and the spacing of display panels and fresnel lens array is l
2, the distance of lens arra and hologram functional screen is l
1, the spacing of Fresnel Lenses is W
f, on hologram functional screen, the width of displaying contents is W
0, viewing field of view angle is θ.According to image-forming principle and the triangle relation of lens, we can obtain following formula:
The display device of the disclosed full parallax 3 d light fields of the present embodiment makes beholder watch with different distance from different perspectives, and beholder can watch correct field information.
Embodiment three:
The present embodiment discloses a kind of 3 d light fields display system, and described display system comprises: at least two 3D light displays show that concatenation unit, number and 3D light display show the hologram functional screen that concatenation unit number is identical, and the surface of described hologram functional screen is smooth cambered surface;
Described 3D light display shows that concatenation unit comprises: display and lens arra;
Adjacent 3D light display shows that the angle between concatenation unit is predetermined angle, is smoothly connected between adjacent hologram functional screen.
In embody rule, three 3D light displays can be selected to show concatenation unit, as shown in Figure 6, each 3D light display shows the flying bird of concatenation unit display different angles, and these three 3D light displays show that concatenation unit is spliced into a complete three-dimensional flying bird image jointly.
The 3 d light fields display system of the present embodiment can realize the 3 d light fields display of more large scale and camber display screen.
Can utilize the liquid crystal display of 4K in embody rule, fresnel lens array and hologram functional screen realize full parallax stereoeffect jointly.The resolution of the true 3D rendering formed is 426 × 240, and true 3D rendering is synthesized by the information in 81 directions, and beholder can watch with different distance from different perspectives, can watch correct field information.
The technical term related to herein is as follows:
Auto-stereo display: just can watch three-dimensional display mode without the need to wearing any vision auxiliary equipment (anaglyph spectacles, three-dimensional helmet etc.).
Hologram functional screen: utilize holographic mode to realize, can the directed optical screen controlling light.
Light field shows: after the light field sent object gathers, utilize the emission principle of its light field, to the spatial reproduction of three-dimensional body.This display mode can meet the demand that beholder watches from different distance and different directions.
Viewpoint shows: formed in space with the form of viewpoint by different disparity maps, and when the eyes of beholder are positioned at different viewpoint positions, right and left eyes will obtain different anaglyphs, and beholder will obtain steric information.
Full parallax stereo display: the stereo display mode simultaneously with level and vertical parallax.
Although describe embodiments of the present invention by reference to the accompanying drawings, but those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, such amendment and modification all fall into by within claims limited range.
Claims (8)
1. a display device for full parallax 3 d light fields, is characterized in that, described display device comprises: display, lens arra, hologram functional screen;
Described display is for showing the image information collected from different directions;
The image information that described lens arra is used for display shows projects described hologram functional screen;
Described hologram functional screen has the light field of full parallax stereoeffect for providing.
2. display device according to claim 1, is characterized in that, the lens number in described lens arra is determined by the viewing area number of described display.
3. display device according to claim 2, is characterized in that, the viewing area number of described display is N × N, and described N is positive integer.
4. the display device according to Claims 2 or 3, is characterized in that, the lens number in described lens arra is N × N, and described N is positive integer.
5. display device according to claim 1, is characterized in that, the lens in described lens arra are lighttight square structure, and the center of described square structure has a printing opacity circular hole.
6. display device according to claim 1, is characterized in that, described display is liquid crystal display, and the lens in described lens arra are Fresnel Lenses.
7. the display device according to claim 1 or 3, is characterized in that, the spacing of described display and described lens arra is l
2, the distance of described lens arra and described hologram functional screen is l
1, described l
1and l
2meet following formula:
Wherein, W is the width of display, and f is the focal length of lens, W
ffor the spacing of lens in lens arra, W
0for the width of displaying contents on hologram functional screen, θ is viewing field of view angle.
8. a 3 d light fields display system, is characterized in that, described display system comprises: at least two 3D light displays show that concatenation unit, number and 3D light display show the hologram functional screen that concatenation unit number is identical, and the surface of described hologram functional screen is smooth cambered surface;
Described 3D light display shows that concatenation unit comprises: display and lens arra;
Adjacent 3D light display shows that the angle between concatenation unit is predetermined angle, is smoothly connected between adjacent hologram functional screen.
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Cited By (16)
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| CN106125378A (en) * | 2016-07-15 | 2016-11-16 | 北京邮电大学 | The system and method that a kind of 3D light field shows |
| CN106154566A (en) * | 2016-07-06 | 2016-11-23 | 北京邮电大学 | A kind of 3 d light fields display system and display parameters determine method |
| CN106507096A (en) * | 2016-11-24 | 2017-03-15 | 北京邮电大学 | A kind of tracing type ground light field 3D display packing and system with super large visual angle |
| CN107092096A (en) * | 2016-11-09 | 2017-08-25 | 北京邮电大学 | A kind of bore hole 3D ground sand table shows system and method |
| CN107431797A (en) * | 2015-04-23 | 2017-12-01 | 奥斯坦多科技公司 | Method and apparatus for full parallax light field display system |
| CN108061972A (en) * | 2016-11-07 | 2018-05-22 | 北京邮电大学 | A kind of curved surface light field display system |
| CN110133858A (en) * | 2018-02-08 | 2019-08-16 | 深圳市泛彩溢实业有限公司 | A kind of information reduction lens array plate |
| CN110297333A (en) * | 2019-07-08 | 2019-10-01 | 中国人民解放军陆军装甲兵学院 | A kind of light field display system adjusting method and system |
| US10448030B2 (en) | 2015-11-16 | 2019-10-15 | Ostendo Technologies, Inc. | Content adaptive light field compression |
| US10453431B2 (en) | 2016-04-28 | 2019-10-22 | Ostendo Technologies, Inc. | Integrated near-far light field display systems |
| CN111386565A (en) * | 2018-10-30 | 2020-07-07 | 京东方科技集团股份有限公司 | Light field display method, device, equipment and recording medium |
| CN111429809A (en) * | 2020-05-12 | 2020-07-17 | 珠海格力电器股份有限公司 | Display assembly, display method, display device and electrical equipment |
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| CN112946914A (en) * | 2021-02-23 | 2021-06-11 | 荆门市探梦科技有限公司 | Transmission type geometric holographic screen with field angle and application thereof |
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| WO2022095505A1 (en) * | 2020-11-03 | 2022-05-12 | 浙江大学 | Three-dimensional display apparatus for directional display |
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Cited By (24)
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| US10528004B2 (en) | 2015-04-23 | 2020-01-07 | Ostendo Technologies, Inc. | Methods and apparatus for full parallax light field display systems |
| CN107431797A (en) * | 2015-04-23 | 2017-12-01 | 奥斯坦多科技公司 | Method and apparatus for full parallax light field display system |
| CN107431797B (en) * | 2015-04-23 | 2019-10-11 | 奥斯坦多科技公司 | Method and apparatus for full parallax light field display system |
| US10310450B2 (en) | 2015-04-23 | 2019-06-04 | Ostendo Technologies, Inc. | Methods and apparatus for full parallax light field display systems |
| US11019347B2 (en) | 2015-11-16 | 2021-05-25 | Ostendo Technologies, Inc. | Content adaptive light field compression |
| US10448030B2 (en) | 2015-11-16 | 2019-10-15 | Ostendo Technologies, Inc. | Content adaptive light field compression |
| US10453431B2 (en) | 2016-04-28 | 2019-10-22 | Ostendo Technologies, Inc. | Integrated near-far light field display systems |
| US11145276B2 (en) | 2016-04-28 | 2021-10-12 | Ostendo Technologies, Inc. | Integrated near-far light field display systems |
| CN106154566A (en) * | 2016-07-06 | 2016-11-23 | 北京邮电大学 | A kind of 3 d light fields display system and display parameters determine method |
| CN106125378A (en) * | 2016-07-15 | 2016-11-16 | 北京邮电大学 | The system and method that a kind of 3D light field shows |
| CN108061972A (en) * | 2016-11-07 | 2018-05-22 | 北京邮电大学 | A kind of curved surface light field display system |
| CN107092096A (en) * | 2016-11-09 | 2017-08-25 | 北京邮电大学 | A kind of bore hole 3D ground sand table shows system and method |
| CN106507096A (en) * | 2016-11-24 | 2017-03-15 | 北京邮电大学 | A kind of tracing type ground light field 3D display packing and system with super large visual angle |
| CN110133858A (en) * | 2018-02-08 | 2019-08-16 | 深圳市泛彩溢实业有限公司 | A kind of information reduction lens array plate |
| CN111386565A (en) * | 2018-10-30 | 2020-07-07 | 京东方科技集团股份有限公司 | Light field display method, device, equipment and recording medium |
| CN111386565B (en) * | 2018-10-30 | 2024-05-17 | 京东方科技集团股份有限公司 | Light field display method, device, equipment and recording medium |
| CN110297333B (en) * | 2019-07-08 | 2022-01-18 | 中国人民解放军陆军装甲兵学院 | Light field display system adjusting method and system |
| CN110297333A (en) * | 2019-07-08 | 2019-10-01 | 中国人民解放军陆军装甲兵学院 | A kind of light field display system adjusting method and system |
| CN114270255A (en) * | 2019-08-26 | 2022-04-01 | 光场实验室公司 | Light field display system for sports |
| CN111429809A (en) * | 2020-05-12 | 2020-07-17 | 珠海格力电器股份有限公司 | Display assembly, display method, display device and electrical equipment |
| CN111818324A (en) * | 2020-05-26 | 2020-10-23 | 北京邮电大学 | Device and method for generating three-dimensional large-visual-angle light field |
| WO2022095505A1 (en) * | 2020-11-03 | 2022-05-12 | 浙江大学 | Three-dimensional display apparatus for directional display |
| CN112946914A (en) * | 2021-02-23 | 2021-06-11 | 荆门市探梦科技有限公司 | Transmission type geometric holographic screen with field angle and application thereof |
| 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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Application publication date: 20141217 |