CN110286495B - Retroreflective stereoscopic display device based on light source array - Google Patents
Retroreflective stereoscopic display device based on light source array Download PDFInfo
- Publication number
- CN110286495B CN110286495B CN201910607782.8A CN201910607782A CN110286495B CN 110286495 B CN110286495 B CN 110286495B CN 201910607782 A CN201910607782 A CN 201910607782A CN 110286495 B CN110286495 B CN 110286495B
- Authority
- CN
- China
- Prior art keywords
- light source
- light
- liquid crystal
- source array
- crystal display
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 45
- 230000000007 visual effect Effects 0.000 claims abstract description 12
- 239000013078 crystal Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- 230000000737 periodic effect Effects 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000006073 displacement reaction Methods 0.000 description 4
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
- G02B30/20—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes
- G02B30/26—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the autostereoscopic type
- G02B30/27—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the autostereoscopic type involving lenticular arrays
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/12—Reflex reflectors
- G02B5/122—Reflex reflectors cube corner, trihedral or triple reflector type
- G02B5/124—Reflex reflectors cube corner, trihedral or triple reflector type plural reflecting elements forming part of a unitary plate or sheet
Abstract
The invention provides a light source array-based retro-reflective stereoscopic display device. The display device consists of a light source array, a cylindrical lens grating, a retro-reflective film and a liquid crystal display panel. The light source array, the cylindrical lens grating and the retro-reflection film are used for controlling the light propagation direction in the device, and light rays emitted by any light source in the light source array are reflected by the retro-reflection film after passing through the liquid crystal display panel and the cylindrical lens grating and can be converged into a vertical projection area where the light source is located again. When a certain light source in the light source array is turned on, the liquid crystal display panel provides a parallax image corresponding to the spatial position of the light source, so that a visual area is formed in the vertical projection area of the current light source. The light sources in the light source array are sequentially turned on in a time division multiplexing manner, the liquid crystal display panel provides parallax images corresponding to the light sources, so that a plurality of visual areas can be formed in space, and when human eyes are in different visual areas, the parallax images corresponding to the human eyes can be seen, so that stereoscopic vision is generated.
Description
Technical Field
The present invention relates to display technology, and more particularly, to stereoscopic projection display technology.
Background
The projection display device can be used for displaying stereoscopic images. The common stereoscopic projection display device is composed of components such as a lenticular lens grating, a projector and the like, provides parallax images through the projector, and realizes stereoscopic image display by utilizing the beam splitting effect of the lenticular lens. However, in the conventional stereoscopic projection display device, a projector is generally used for image projection, and when the resolution requirement is high, a plurality of projectors are also used for image projection, so the invention provides a light source array-based retro-reflective stereoscopic display device based on a light source array, which does not provide parallax images through the projector, but provides parallax images through a liquid crystal display panel, and controls the projection direction of the parallax images through the light source array and a retro-reflective film, thereby realizing stereoscopic image display, and compared with the conventional device for realizing stereoscopic projection through the projector, the cost of the device is relatively low.
Disclosure of Invention
The invention provides a light source array-based retro-reflective stereoscopic display device. Fig. 1 is a schematic structural diagram of the light source array-based retro-reflective stereoscopic display device. The light source array-based retro-reflective stereoscopic display device consists of a light source array, a cylindrical lens grating, a retro-reflective film and a liquid crystal display panel.
The liquid crystal display panel, the lenticular lens grating and the retroreflective film are placed in sequence. The cylindrical lens grating is arranged in front of the retro-reflection film and is formed by arranging a plurality of cylindrical lenses in the vertical direction and used for scattering light rays in the vertical direction, and the retro-reflection film is provided with a light retro-reflection structure which can reflect the light rays incident on the retro-reflection film according to the original incident direction. The liquid crystal display panel is used to provide parallax images, and adopts a low scattering panel, which does not change the propagation direction of light.
The light source array, the cylindrical lens grating and the retro-reflection film are used for controlling the light propagation direction in the device, and light rays emitted by any light source in the light source array can be emitted to the positions of the liquid crystal display panel, the cylindrical lens grating and the retro-reflection film and reach the positions of the retro-reflection film after passing through the liquid crystal display panel and the cylindrical lens grating. After being reflected by the retro-reflection film, the light rays pass through the cylindrical lens grating and the liquid crystal display panel again and are converged into the vertical projection area where the light source is located. At the same time, only one light source in the light source array is turned on, and other light sources are all in a turned-off state, and when one of the light sources is turned on, the liquid crystal display panel provides a parallax image corresponding to the spatial position of the light source, so that a visual area is formed in the vertical projection area of the current light source through the reflection process. The light sources in the light source array are turned on sequentially in a time division multiplexing manner, and the liquid crystal display panel provides parallax images corresponding to the light sources, so that a plurality of viewing areas can be formed in space. When the human eye portions are in different visual areas, parallax images corresponding to the human eye portions can be seen, so that stereoscopic vision is generated.
Specifically, the light emitted by any light source in the light source array is firstly incident to the liquid crystal display panel, the liquid crystal display panel does not change the retransmission direction of the light, and the light passes through the liquid crystal display panel and then reaches the lenticular lens grating. At this time, the propagation of light is described in the vertical and horizontal directions.
In the vertical propagation direction, the cylindrical lens grating is formed by arranging a plurality of cylindrical lenses in the vertical direction, and has a lens condensing effect in the vertical direction. So that the light beam passes through the lenticular lens grating and then changes in propagation direction in the vertical direction. Then, the light reaches the retro-reflection film, and the retro-reflection film usually adopts a cubic crystal structure and has light retro-reflection characteristics, so that the light can form tertiary reflection on the retro-reflection film and finally exit according to the original incident direction. However, in the cubic crystal structure, there is a certain displacement between the reflected light and the incident light. The displacement causes the reflected light to pass through the lenticular lens grating again, and the position of the incident point of the reflected light changes, so that the reflected light is scattered by the lenticular lens grating to other vertical space directions different from the incident light. Therefore, the light is reflected and scattered in the vertical propagation direction.
In the horizontal direction, the cylindrical lens grating is formed by arranging a plurality of cylindrical lenses in the vertical direction, and does not have a lens condensing effect in the horizontal direction. So that the light propagation direction is not changed in the horizontal direction. Subsequently, the light reaches the retroreflective film. According to the principle, after the incident light is reflected by the retro-reflection film according to the original direction, the light reaches the cylindrical lens grating again. Similarly, when light passes through the cylindrical lens grating again, the cylindrical lens grating does not change the light propagation direction in the horizontal direction. So eventually, the light will be reflected in the horizontal direction in the original incident direction.
Finally, the light rays reflected by the cylindrical lens grating pass through the liquid crystal display panel again and are converged into the vertical projection area where the light source is located, so that a visual area is formed.
Preferably, the retroreflective film adopts a cubic crystal structure, and the periodic structure of the retroreflective film is composed of three square reflective planes which are orthogonally placed at ninety degrees.
Preferably, the pixel pitch of the liquid crystal display panel should be larger than the lenticular lens grating pitch and the pitch of the periodic structure of the retroreflective film.
Preferably, the pitch of the periodic structure of the retroreflective film is greater than or equal to the lenticular lens grating pitch.
Alternatively, the front and rear positions of the liquid crystal display panel and lenticular lens may be interchanged.
Alternatively, the array of light sources may be a two-dimensional array.
In the invention, the light source array and the retro-reflective film are used for controlling the projection direction of the parallax image, so that the stereoscopic image display is realized, and compared with the traditional device for realizing stereoscopic projection by using a projector, the cost of the device is relatively low.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic structural diagram of a retroreflective film according to the present invention.
Fig. 3 is a diagram of a lenticular lens grating light path in the present invention.
Fig. 4 is a horizontal light path diagram in the present invention.
Fig. 5 is a view of a light path in a vertical direction in the present invention.
Icon: 010-a retro-reflective stereoscopic display device based on an array of light sources; a 100-retroreflective film; 200-a cylindrical lens grating; 300-a liquid crystal display panel; 410-a first light source; 420-a second light source; 430-a third light source; 440-fourth light source; 020-retroreflective cubic microstructure; 110-retroreflective film incident light; 120-reflecting light from the retroreflective film; 030-a cylindrical lens scattering process; 040-horizontal direction splitting principle; 050-principle of vertical scattering.
It should be understood that the above-described figures are merely schematic and are not drawn to scale.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
Examples
Fig. 1 is a schematic structural diagram of a light source array-based retro-reflective stereoscopic display device 010 according to the present embodiment. In the figure, the x-coordinate represents the horizontal direction in space, the y-coordinate represents the vertical direction in space, and z represents the direction perpendicular to the x-y plane. Referring to fig. 1, the present embodiment provides a light source array-based retroreflective stereoscopic display device 010, which comprises a light source array having four light sources 410-440, a lenticular lens 200, a retroreflective film 100 and a liquid crystal display panel 300.
The liquid crystal display panel 300, lenticular lens 200, and retroreflective film 100 are placed one after the other. The cylindrical lens light 200 is arranged in front of the retroreflective film 100, and is formed by arranging a plurality of cylindrical lenses in the vertical direction for scattering light in the vertical direction, the retroreflective film 100 adopts a cubic crystal structure, and the periodic structure of the retroreflective film is formed by three square reflection planes which are orthogonally arranged at ninety degrees, so that the light incident on the retroreflective film can be reflected according to the original incident direction. The liquid crystal display panel 300 is used to provide a parallax image, and employs a low scattering panel that does not change the propagation direction of light. A common low scattering panel is a transparent liquid crystal display panel, and when light passes through the panel, the light is hardly scattered.
The light source array-based retroreflective stereoscopic display device 010 provided in the present embodiment is further described below.
The light source array, the lenticular lens grating 200 and the retro-reflective film 100 are used for controlling the light propagation direction in the device, and the light emitted by any light source in the light source array can be emitted to the liquid crystal display panel 300, the lenticular lens grating 200 and the retro-reflective film 100 and reaches the retro-reflective film 100 after passing through the liquid crystal display panel 300 and the lenticular lens grating 200. After being reflected by the retro-reflective film 100, the light passes through the lenticular lens 200 and the liquid crystal display panel 300 again, and is converged into the vertical projection area where the light source is located. At the same time, only one light source in the light source array is turned on, and other light sources are all in a turned-off state, and when one of the light sources is turned on, the liquid crystal display panel 300 provides a parallax image corresponding to the spatial position of the light source, so that a viewing area is formed in the vertical projection area of the current light source through the above-mentioned reflection process. The light sources in the light source array are turned on sequentially in a time division multiplexing manner, and the liquid crystal display panel provides parallax images corresponding to the light sources, so that a plurality of viewing areas can be formed in space. When the human eye portions are in different visual areas, parallax images corresponding to the human eye portions can be seen, so that stereoscopic vision is generated.
Specifically, the light emitted by any light source in the light source array is first incident on the liquid crystal display panel 300, the liquid crystal display panel 300 does not change the retransmission direction of the light, and the light passes through the liquid crystal display panel 300 and then reaches the lenticular lens 200. At this time, the propagation of light is described in the vertical and horizontal directions.
In the vertical propagation direction, since the lenticular lens 200 is formed by arranging a plurality of lenticular lenses in the vertical direction, it has a lens condensing effect in the vertical direction. The light passes through the lenticular lens 200 and then changes its propagation direction in the vertical direction. Subsequently, the light reaches the retroreflective film 100. Referring to fig. 2, the retroreflective film has a retroreflective cube microstructure 020, and after the retroreflective film incident light 110 reaches the retroreflective film 100, three reflections are performed on three square reflection planes disposed in ninety degrees orthogonal, and finally a retroreflective film reflected light 120 is formed, where the direction of the retroreflective film reflected light 120 is consistent with the original retroreflective film incident light 110, but the propagation direction is opposite. Meanwhile, in the reflection process, the position of the light ray 120 reflected by the retro-reflection film and the position of the light ray 110 incident by the retro-reflection film are displaced to a certain extent. Referring to fig. 3, the displacement causes the position of the incident point of the reflected light to change when the reflected light passes through the lenticular lens grating again, so that the reflected light is scattered by the lenticular lens grating to other vertical spatial directions different from the incident light. Therefore, after reflection, the light will be scattered in the vertical propagation direction.
In the horizontal direction, since the lenticular lens 200 is formed by arranging a plurality of lenticular lenses in the vertical direction, it does not have a lens condensing effect in the horizontal direction. So that the light propagation direction is not changed in the horizontal direction. Subsequently, the light reaches the retroreflective film 100. According to the above-described principle of retroreflection, the incident light is reflected by the retroreflection film 100 in the original direction, and then the light reaches the lenticular lens 200 again. Similarly, when light passes through the cylindrical lens grating again, the cylindrical lens grating does not change the light propagation direction in the horizontal direction. So eventually, the light will be reflected in the horizontal direction in the original incident direction.
Finally, the light rays reflected from the lenticular lens 200 pass through the liquid crystal display panel 300 again and are converged into the vertical projection area where the light source is located, thereby forming a viewing area.
In summary, the horizontal light splitting principle of the light source array-based retroreflective stereoscopic display device 010 in the present embodiment is shown in fig. 4. Fig. 4 illustrates the propagation of light in the horizontal direction using light source 420 as an example. The light source 420 is in an on state, and the remaining light sources are in an off state, and the liquid crystal display panel 300 provides a parallax image corresponding to the position of the light source 420. Light emitted by the light source 420 sequentially passes through the liquid crystal display panel 300 and the lenticular lens grating 200, reaches the retroreflective film 100, is reflected, passes through the lenticular lens grating 200 and the liquid crystal display panel 300 again, and is reversely converged at the position of the light source 420 to form a visual area. When the human eye is at the visual zone position, a parallax image corresponding to the light source position can be seen.
In this embodiment, please refer to fig. 5 for the principle of light splitting in the vertical direction of the light source array-based retroreflective stereoscopic display device 010. Since the displacement between the incident light 110 of the retroreflective film and the reflected light 120 of the retroreflective film is not constant, the reflected light 120 of the retroreflective film is refracted by the lenticular lens 200, and then exits in any vertical direction. The corresponding parallax images are seen when the human eye is within the vertical projection region of the light source 420.
In this embodiment, four projectors 410 to 420 project four parallax images in a time division multiplexing manner, and form four different viewing areas, and when left and right eyes of a viewer are respectively located in the different viewing areas, the parallax images corresponding to the left and right eyes of the viewer can be respectively seen, so that stereoscopic vision is generated. In this embodiment, since the light source array and the retroreflective film 100 are used to control the projection direction of the parallax image, thereby realizing stereoscopic image display, the cost is relatively low compared to the conventional apparatus for realizing stereoscopic projection using a projector.
Claims (5)
1. A retroreflective stereoscopic display device based on an array of light sources, characterized in that: the light source array-based three-dimensional retroreflection display device consists of a light source array, a cylindrical lens grating, a retroreflection film and a liquid crystal display panel, wherein the liquid crystal display panel, the cylindrical lens grating and the retroreflection film are sequentially arranged in front of and behind the retroreflection film, the cylindrical lens grating is formed by arranging a plurality of cylindrical lenses in the vertical direction and used for scattering light rays in the vertical direction, the retroreflection film is provided with a light retroreflection structure and can reflect the light rays incident on the retroreflection film according to the original incidence direction, the liquid crystal display panel is used for providing parallax images and adopts a low scattering panel, the propagation direction of the light rays is not changed, the light source array, the cylindrical lens grating and the retroreflection film are used for controlling the propagation direction of the light rays in the device, the light rays emitted by any light source in the light source array can be emitted to the positions of the liquid crystal display panel, the cylindrical lens grating and the retroreflection film, after the light passes through the liquid crystal display panel and the lenticular lens grating, the light reaches the position of the retro-reflective film, after the light is reflected by the retro-reflective film, the light passes through the lenticular lens grating and the liquid crystal display panel again and is converged into the vertical projection area where the light sources are positioned, at the same time, only one light source in the light source array is turned on, and other light sources are all in a turned-off state, when one light source is turned on, the liquid crystal display panel provides a parallax image corresponding to the spatial position of the light source, so that a visual area is formed in the vertical projection area of the current light source through the reflection process, the light sources in the light source array are turned on in sequence in a time division multiplexing manner, the liquid crystal display panel provides parallax images corresponding to the light source array, so that a plurality of visual areas can be formed in space, and when human eyes are in different visual areas, the parallax images corresponding to the human eyes can be seen, thereby creating stereoscopic vision.
2. A light source array-based retro-reflective stereoscopic display device according to claim 1, wherein: the retroreflective film adopts a cubic crystal structure, and the periodic structure of the retroreflective film is composed of three square reflecting planes which are orthogonally placed at ninety degrees.
3. A light source array-based retro-reflective stereoscopic display device according to claim 1, wherein: the front and rear positions of the liquid crystal display panel and the lenticular lens grating may be interchanged.
4. A light source array-based retro-reflective stereoscopic display device according to claim 1, wherein: the array of light sources may be a two-dimensional array.
5. A light source array-based retro-reflective stereoscopic display device according to claim 1, wherein: the lenticular lens grating is replaced by a lenticular concave lens array.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910607782.8A CN110286495B (en) | 2019-07-08 | 2019-07-08 | Retroreflective stereoscopic display device based on light source array |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910607782.8A CN110286495B (en) | 2019-07-08 | 2019-07-08 | Retroreflective stereoscopic display device based on light source array |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110286495A CN110286495A (en) | 2019-09-27 |
| CN110286495B true CN110286495B (en) | 2023-12-29 |
Family
ID=68020885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910607782.8A Active CN110286495B (en) | 2019-07-08 | 2019-07-08 | Retroreflective stereoscopic display device based on light source array |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110286495B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114200693A (en) * | 2021-11-17 | 2022-03-18 | 广东未来科技有限公司 | Display grating, 3D display device, preparation of display grating and 3D display method |
| CN116338975B (en) * | 2023-05-30 | 2023-07-28 | 成都工业学院 | Stereoscopic display device based on display bar array |
| CN116500804B (en) * | 2023-06-29 | 2023-09-15 | 成都工业学院 | Time division multiplexing's three-dimensional display device of retroreflection |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1994025899A1 (en) * | 1993-05-04 | 1994-11-10 | Xenotech Research Pty. Ltd. | Stereoscopic display unit |
| JPH11258697A (en) * | 1998-03-09 | 1999-09-24 | Hitachi Ltd | Directional reflection type screen and image display device |
| WO2003058979A2 (en) * | 2002-01-04 | 2003-07-17 | Neurok Llc | Three-dimensional image projection employing retro-reflective screens |
| CN203799124U (en) * | 2014-04-14 | 2014-08-27 | 中国科学院重庆绿色智能技术研究院 | Motion parallax type three-dimensional display device |
| JP2017058512A (en) * | 2015-09-16 | 2017-03-23 | 株式会社Ｊｖｃケンウッド | Naked eye stereoscopic display device and naked eye stereoscopic display method |
| CN107783305A (en) * | 2017-11-24 | 2018-03-09 | 成都工业学院 | A kind of time-multiplexed 3D display device and its application |
| CN108008540A (en) * | 2017-11-30 | 2018-05-08 | 北京邮电大学 | A kind of three-dimensional display system |
| CN108681088A (en) * | 2018-06-04 | 2018-10-19 | 成都工业学院 | 3D display apparatus and system |
| CN108803058A (en) * | 2018-06-15 | 2018-11-13 | 深圳狗尾草智能科技有限公司 | Holographic display system, its imaging method and holographic three-dimensional display system |
| CN109286805A (en) * | 2018-12-06 | 2019-01-29 | 成都工业学院 | A kind of stereo projection apparatus based on cylindrical lens |
| CN109283694A (en) * | 2018-12-06 | 2019-01-29 | 成都工业学院 | A kind of stereo projection apparatus based on double grating |
| CN109343229A (en) * | 2018-12-06 | 2019-02-15 | 成都工业学院 | A kind of 3 d display device of long sight distance |
| CN109725429A (en) * | 2019-03-06 | 2019-05-07 | 成都工业学院 | A kind of 3 d display device of the poly- mixing imaging of reality |
| CN210323609U (en) * | 2019-07-08 | 2020-04-14 | 成都工业学院 | Retro-reflection three-dimensional display device based on light source array |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8360581B2 (en) * | 2008-05-23 | 2013-01-29 | Eizo Nanao Corporation | Stereoscopic image display system |
| US9182524B2 (en) * | 2011-09-29 | 2015-11-10 | Disney Enterprises, Inc. | Autostereoscopic display system with one dimensional (1D) retroreflective screen |
-
2019
- 2019-07-08 CN CN201910607782.8A patent/CN110286495B/en active Active
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1994025899A1 (en) * | 1993-05-04 | 1994-11-10 | Xenotech Research Pty. Ltd. | Stereoscopic display unit |
| JPH11258697A (en) * | 1998-03-09 | 1999-09-24 | Hitachi Ltd | Directional reflection type screen and image display device |
| WO2003058979A2 (en) * | 2002-01-04 | 2003-07-17 | Neurok Llc | Three-dimensional image projection employing retro-reflective screens |
| CN203799124U (en) * | 2014-04-14 | 2014-08-27 | 中国科学院重庆绿色智能技术研究院 | Motion parallax type three-dimensional display device |
| JP2017058512A (en) * | 2015-09-16 | 2017-03-23 | 株式会社Ｊｖｃケンウッド | Naked eye stereoscopic display device and naked eye stereoscopic display method |
| CN107783305A (en) * | 2017-11-24 | 2018-03-09 | 成都工业学院 | A kind of time-multiplexed 3D display device and its application |
| CN108008540A (en) * | 2017-11-30 | 2018-05-08 | 北京邮电大学 | A kind of three-dimensional display system |
| CN108681088A (en) * | 2018-06-04 | 2018-10-19 | 成都工业学院 | 3D display apparatus and system |
| CN108803058A (en) * | 2018-06-15 | 2018-11-13 | 深圳狗尾草智能科技有限公司 | Holographic display system, its imaging method and holographic three-dimensional display system |
| CN109286805A (en) * | 2018-12-06 | 2019-01-29 | 成都工业学院 | A kind of stereo projection apparatus based on cylindrical lens |
| CN109283694A (en) * | 2018-12-06 | 2019-01-29 | 成都工业学院 | A kind of stereo projection apparatus based on double grating |
| CN109343229A (en) * | 2018-12-06 | 2019-02-15 | 成都工业学院 | A kind of 3 d display device of long sight distance |
| CN109725429A (en) * | 2019-03-06 | 2019-05-07 | 成都工业学院 | A kind of 3 d display device of the poly- mixing imaging of reality |
| CN210323609U (en) * | 2019-07-08 | 2020-04-14 | 成都工业学院 | Retro-reflection three-dimensional display device based on light source array |
Non-Patent Citations (2)
| Title |
|---|
| 基于柱透镜光栅的合成图像生成及分辨率损失;王霞;董玉和;;电视技术(第05期);全文 * |
| 柱透镜光栅投影3D显示的视点数与串扰容限;田华;曾小名;戴涛涛;黄子强;;液晶与显示(第03期);全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110286495A (en) | 2019-09-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110262051B (en) | Retroreflective stereoscopic display device based on directional light source | |
| US11340475B2 (en) | Display device for aerial image having retro-reflective part | |
| CN212569307U (en) | Retro-reflection three-dimensional display device based on directional light source | |
| CN100495115C (en) | Display | |
| CN110286495B (en) | Retroreflective stereoscopic display device based on light source array | |
| CN110286496B (en) | Stereoscopic display device based on front directional light source | |
| US20200073136A1 (en) | System for use in imaging in air | |
| JP5646110B2 (en) | Stereoscopic image forming system and method | |
| CN104090369A (en) | Head-up display device | |
| CN210323674U (en) | Stereo display device with adjustable optimal viewing distance | |
| CN113917701B (en) | Projection light field stereoscopic display device | |
| CN109856808B (en) | Suspension display device | |
| CN110456549B (en) | Stereoscopic display device with adjustable optimal viewing distance | |
| CN102681322A (en) | Display device | |
| CN108398735B (en) | Directional imaging device, method and application | |
| JP2012008301A (en) | Volume-scanning type 3d image display device | |
| KR20140144617A (en) | Apparatus for projecting space image | |
| CN210323610U (en) | Three-dimensional display device based on front directional light source | |
| CN210323609U (en) | Retro-reflection three-dimensional display device based on light source array | |
| CN110058420A (en) | A kind of reflex reflection stereo projection display apparatus | |
| CN110989190A (en) | Low-crosstalk stereoscopic projection display device | |
| Miyazaki et al. | Multi-user autostereoscopic display based on direction-controlled illumination using a slanted cylindrical lens array | |
| CN116500803B (en) | Time division multiplexing stereoscopic display device | |
| CN110286516B (en) | Three-dimensional display device with variable slit pitch | |
| Miyazaki et al. | Floating three-dimensional image display using micro-mirror array imaging element |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |