CN209707821U - A kind of time-multiplexed transparent stereo display device - Google Patents
A kind of time-multiplexed transparent stereo display device Download PDFInfo
- Publication number
- CN209707821U CN209707821U CN201920516260.2U CN201920516260U CN209707821U CN 209707821 U CN209707821 U CN 209707821U CN 201920516260 U CN201920516260 U CN 201920516260U CN 209707821 U CN209707821 U CN 209707821U
- Authority
- CN
- China
- Prior art keywords
- polarization
- liquid crystals
- projector
- display device
- dispersed liquid
- 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
Landscapes
- Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
Abstract
The utility model proposes a kind of time-multiplexed transparent stereo display devices.The time-multiplexed transparent stereo display device is made of projector, projection polarization piece, polymer dispersed liquid crystals plate and polarization grating.Projector is for projecting synthesized parallax image.The light of projector is converted linearly polarized light by the projection polarization piece.Polarization grating is prepared by polarizing film, and polarization direction is orthogonal with the polarization direction of projection polarization piece, is etched with transmissive slit thereon.Polymer dispersed liquid crystals plate can switch between scattering and transparent two states.When polymer dispersed liquid crystals plate is in scattering state, display can form stereoscopic display；When it is in pellucidity, viewer can see the things at its rear.Time division multiplexing ground, the polymer dispersed liquid crystals plate constantly replace between scattering and transparent two states, and viewer not only can see that stereo-picture but also can see that the things at display device rear, show to form transparent stereo.
Description
Technical field
The utility model relates to display technologies, and more specifically, the utility model relates to project stereoscopic display technologies.
Background technique
3D display technology can be achieved on a kind of display technology of stereo scene true reappearance, can mention respectively for human eye
For different anaglyphs, to make one to generate stereoscopic vision.Usual stereoscopic display is by grating and stereoscopic parallax composograph structure
At.By accurately coupling, stereoscopic parallax composograph pixel can be by grating loss to specified direction, to form viewpoint.
When human eye is respectively at different points of view, different anaglyphs can be respectively seen in right and left eyes, to generate stereoscopic vision.For
Stereoscopically displaying images and display device local environment are made to combine together, the utility model proposes a kind of time-multiplexed transparent vertical
Body display device.The display device can make viewer see the things at display device rear while showing stereo-picture.
Summary of the invention
The utility model proposes a kind of time-multiplexed transparent stereo display devices.Attached drawing 1 is that this is time-multiplexed
The structural schematic diagram of bright 3 d display device.The time-multiplexed transparent stereo display device is by projector, projection polarization piece, poly-
Close object dispersed LCD plate and polarization grating composition.The projector is for projecting synthesized parallax image.The projection polarization piece is set
Before projector, for converting linearly polarized light for the light of projector.The polymer dispersed liquid crystals plate can dissipate
It penetrates between transparent two states and switches over.The polarization grating is prepared by polarizing film, polarization direction and projection polarization
The polarization direction of piece is orthogonal, is etched with transmissive slit thereon.When the polymer dispersed liquid crystals plate is in scattering state, by institute
The synthesized parallax image for stating projector will image on polymer dispersed liquid crystals plate, at this point, imaging in the polymer point
The synthesized parallax image dissipated on liquid crystal board can be modulated by the transmissive slit of polarization grating, be upwardly formed in different horizontal space sides
Viewpoint.A width anaglyph can be respectively seen in viewer in each viewpoint.When the polymer dispersed liquid crystals plate is in transparent
When state, viewer can not see synthesized parallax image, but can see the polarization grating and the polymer dispersed liquid crystals
The things at plate rear.Time division multiplexing ground, the polymer dispersed liquid crystals plate constantly replace between scattering and transparent two states, see
The person of seeing not only can see that stereo-picture but also can see that the things at display device rear, show to form transparent stereo.
Optionally, the transmissive slit of the polarization grating can be replaced pinhole array.
Optionally, when the projector can directly projected polarisation light when, the projection polarization piece can be removed.
Optionally, the projector and the projection polarization piece can be placed in the polarization grating side.
Optionally, on polarization grating and polymer dispersed liquid crystals plate settable light openings to improve under transparence display state
Light efficiency.
In the utility model, since the polymer dispersed liquid crystals plate constantly replaces between scattering and transparent two states,
Viewer not only can see that stereo-picture but also can see that the things at display device rear, show to form transparent stereo.
Detailed description of the invention
It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
Attached drawing be briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore should not be by
Regard the restriction to range as, for those of ordinary skill in the art, without creative efforts, may be used also
To obtain other relevant attached drawings according to these attached drawings.
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the schematic illustration of polymer dispersed liquid crystals plate in the utility model.
Fig. 3 is the schematic diagram that the utility model realizes stereoscopic display.
Fig. 4 is the schematic diagram that the utility model realizes transparence display.
Icon: the time-multiplexed transparent stereo display device of 010-；100- projector；200- projection polarization piece；300- is poly-
Close object dispersed LCD plate；400- polarization grating；020- polymer dispersed liquid crystals plate optical path；030- stereoscopic display optical path；040- is saturating
Obviously show optical path.
It should be understood that above-mentioned attached drawing is only schematical, it is not drawn to draw.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Usually here in attached drawing description and
The component of the utility model embodiment shown can be arranged and be designed with a variety of different configurations.
Therefore, requirement is not intended to limit to the detailed description of the embodiments of the present invention provided in the accompanying drawings below
The scope of the utility model of protection, but it is merely representative of the selected embodiment of the utility model.Based in the utility model
Embodiment, every other embodiment obtained by those of ordinary skill in the art without making creative efforts, all
Belong to the range of the utility model protection.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
Embodiment
Fig. 1 is the structural schematic diagram of time-multiplexed transparent stereo display device 010 provided in this embodiment.X is sat in figure
The horizontal direction in representation space, the vertical direction in y coordinate representation space are marked, z indicates the direction vertical with x-y plane.Please
Referring to Fig.1, the present embodiment provides a kind of time-multiplexed transparent stereo display devices 010 comprising projector 100, projection are inclined
Shake piece 200, polymer dispersed liquid crystals plate 300 and polarization grating 400.The projector 100 is for projecting synthesized parallax image.Institute
It states projection polarization piece 200 to be placed in front of projector 100, polarization direction is horizontal polarization direction, for projecting projector 100
Light be converted into horizontal polarization light.The polymer dispersed liquid crystals plate 300 can be cut between scattering and transparent two states
It changes.The polarization grating 400 is prepared by polarizing film, and polarization direction is vertical polarization, and it is narrow to be etched with light transmission thereon
Seam.
Time-multiplexed transparent stereo display device 010 provided in this embodiment is further described below.
In the present embodiment, projector 100 is for projecting synthesized parallax image, the light of the synthesized parallax image projected
Horizontal polarization light is converted into after projection polarization piece 200.The synthesized parallax image can be projected to polymer dispersed liquid crystals plate 300
At position.
It is provided with electrode on 300 upper layer and lower layer polymer material of polymer dispersed liquid crystals plate, is provided between electrode uniformly
The liquid crystal particle of distribution can switch between scattering and transparent two states.Polymer dispersed liquid crystals plate optical path 020 can refer to
Fig. 2.When not applying voltage on the electrode in polymer dispersed liquid crystals plate 300, regular electric field, liquid cannot be formed between electrode
The direction of optic axis of brilliant particle is random, present disordered state, effective refractive index not with the index matching of polymer, incident ray
It is scattered strongly.When applying voltage between electrode, the refractive index of liquid crystal particle matches substantially with the refractive index of polymer, polymerization
Object liquid crystal board 300 is transparent, and incident light will not scatter.
The stereoscopic display optical path 030 of time-multiplexed transparent stereo display device 010 please refers to Fig. 3.When polymer disperses
When liquid crystal board 300 is in scattering state, polymer dispersion liquid will be imaged in by the synthesized parallax image that the projector 100 projects
On brilliant plate 300.The light of the synthesized parallax image is in horizontal polarization state because of the effect of projection polarization piece 200, and described inclined
The polarization direction of vibration grating 400 is vertical direction, and the light of horizontal polarization direction is only capable of narrow from the light transmission of the polarization grating 400
It is emitted in seam, so form slit grating beam-splitting structure.At this point, imaging in the parallax on the polymer dispersed liquid crystals plate 300
On composograph, thus the pixel of different location can project different direction in spaces by slit grating beam-splitting structure, thus not
Same horizontal space side is upwardly formed viewpoint.A width anaglyph can be respectively seen in viewer in each viewpoint.When human eye point
When different points of view, different anaglyphs can be respectively seen in right and left eyes in other places, to generate stereoscopic vision.
The transparence display optical path 040 of time-multiplexed transparent stereo display device 010 please refers to Fig. 4.When polymer disperses
When liquid crystal board 300 is in pellucidity, dispersed by the synthesized parallax image light that the projector 100 projects by polymer
When liquid crystal board 300, it will be propagated according to straight line.When human eye is not at light propagation path, will be unable to see by the throwing
The synthesized parallax image that shadow machine 100 projects.Simultaneously as polymer dispersed liquid crystals plate 300 is in pellucidity, from described inclined
Its horizontal polarisation component of light and vertical polarisation component for grating 400 and the 300 rear things of the polymer dispersed liquid crystals plate of shaking
The polarization grating 400 and the polymer dispersed liquid crystals plate can be simultaneously from by the transmissive slit of polarization grating 400
Its vertical polarisation component of the light of 300 rear things can pass through the polarizing film on polarization grating 400.Therefore, viewer can be direct
Watch the things of the polarization grating 400 and 300 rear of polymer dispersed liquid crystals plate.
Time division multiplexing ground, the polymer dispersed liquid crystals plate 300 constantly replace between scattering and transparent two states, watch
Person not only can see that stereo-picture but also can see that the things at display device rear, show to form transparent stereo.
Claims (5)
1. a kind of time-multiplexed transparent stereo display device, it is characterised in that: the time-multiplexed transparent stereo display device
It is made of projector, projection polarization piece, polymer dispersed liquid crystals plate and polarization grating, the projector is for projecting parallax synthesis
Image, the projection polarization piece are placed in front of projector, described poly- for converting linearly polarized light for the light of projector
Closing object dispersed LCD plate can switch between scattering and transparent two states, and the polarization grating is prepared by polarizing film,
Its polarization direction is orthogonal with the polarization direction of projection polarization piece, is etched with transmissive slit thereon, when the polymer dispersed liquid crystals
When plate is in scattering state, it will be imaged on polymer dispersed liquid crystals plate by the synthesized parallax image of the projector, this
When, the synthesized parallax image imaged on the polymer dispersed liquid crystals plate can be modulated by the transmissive slit of polarization grating, not
Same horizontal space side is upwardly formed viewpoint, and a width anaglyph can be respectively seen in viewer in each viewpoint, when described poly-
When conjunction object dispersed LCD plate is in pellucidity, viewer can not see synthesized parallax image, but can see the polarised light
Grid and the things at polymer dispersed liquid crystals plate rear, time division multiplexing ground, the polymer dispersed liquid crystals plate is in scattering and thoroughly
Constantly replacing between bright two states, viewer not only can see that stereo-picture but also can see that the things at display device rear, from
And it forms transparent stereo and shows.
2. a kind of time-multiplexed transparent stereo display device as described in claim 1, it is characterised in that: the polarization grating
Transmissive slit can be replaced pinhole array.
3. a kind of time-multiplexed transparent stereo display device as described in claim 1, it is characterised in that: when the projector
Can directly projected polarisation light when, the projection polarization piece can be removed.
4. a kind of time-multiplexed transparent stereo display device as described in claim 1, it is characterised in that: the projector and
The projection polarization piece can be placed in the polarization grating side.
5. a kind of time-multiplexed transparent stereo display device as described in claim 1, it is characterised in that: the polarization grating
With settable light openings on the polymer dispersed liquid crystals plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920516260.2U CN209707821U (en) | 2019-04-17 | 2019-04-17 | A kind of time-multiplexed transparent stereo display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920516260.2U CN209707821U (en) | 2019-04-17 | 2019-04-17 | A kind of time-multiplexed transparent stereo display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209707821U true CN209707821U (en) | 2019-11-29 |
Family
ID=68648111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920516260.2U Active CN209707821U (en) | 2019-04-17 | 2019-04-17 | A kind of time-multiplexed transparent stereo display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209707821U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110068932A (en) * | 2019-04-17 | 2019-07-30 | 成都工业学院 | A kind of time-multiplexed transparent stereo display device |
| CN112505936A (en) * | 2021-01-29 | 2021-03-16 | 成都工业学院 | Color anti-counterfeiting printed matter |
-
2019
- 2019-04-17 CN CN201920516260.2U patent/CN209707821U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110068932A (en) * | 2019-04-17 | 2019-07-30 | 成都工业学院 | A kind of time-multiplexed transparent stereo display device |
| CN112505936A (en) * | 2021-01-29 | 2021-03-16 | 成都工业学院 | Color anti-counterfeiting printed matter |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101658147B1 (en) | Liquid Crystal Lens Electrically driven and Stereoscopy Display Device | |
| KR101622650B1 (en) | Liquid Crystal Lens Electrically driven and Stereoscopy Display Device | |
| US9513487B2 (en) | Illumination device including a light modulation layer, and a display unit including the illumination device | |
| US8531764B2 (en) | Stereoscopic image display device using pattern retarder method and method for fabricating the same | |
| Fan et al. | Full resolution, low crosstalk, and wide viewing angle auto-stereoscopic display with a hybrid spatial-temporal control using free-form surface backlight unit | |
| CN110012285A (en) | A kind of multi-viewpoint three-dimensional display device | |
| US20070126967A1 (en) | Two-dimensional and three-dimensional image selectable display device | |
| CN110068932A (en) | A kind of time-multiplexed transparent stereo display device | |
| US20110157495A1 (en) | Stereoscopic display device | |
| WO2014196125A1 (en) | Image display device and liquid crystal lens | |
| WO2007091373A1 (en) | 3-dimensional display device and image presentation method | |
| WO2013161257A1 (en) | Liquid crystal optical element and image display device provided therewith | |
| CN209707821U (en) | A kind of time-multiplexed transparent stereo display device | |
| CN103207455A (en) | Three-dimensional display device | |
| CN110456549A (en) | A kind of adjustable 3 d display device of viewing ratio | |
| US20080169997A1 (en) | Multi-dimensional image selectable display device | |
| CN110286516A (en) | A kind of 3 d display device that slot pitch is variable | |
| JP2006293106A (en) | Stereoscopic display device | |
| JP2013148865A (en) | Image display device | |
| KR20140147542A (en) | Apparatus for displaying 2d/3d image | |
| KR20060130361A (en) | Liquid crystal display device having thin film polarizers and retarders | |
| CN110286493A (en) | A kind of stereo projection apparatus based on double grating | |
| CN209710237U (en) | A kind of multi-viewpoint three-dimensional display device | |
| KR20120132190A (en) | Image Diplay Device and Stereoscopic Display System Using the Same | |
| CN207799250U (en) | A kind of 3D display device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |