CN110012285A - A kind of multi-viewpoint three-dimensional display device - Google Patents
A kind of multi-viewpoint three-dimensional display device Download PDFInfo
- Publication number
- CN110012285A CN110012285A CN201910318373.6A CN201910318373A CN110012285A CN 110012285 A CN110012285 A CN 110012285A CN 201910318373 A CN201910318373 A CN 201910318373A CN 110012285 A CN110012285 A CN 110012285A
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- polymer dispersed
- polymer
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- display panel
- liquid crystal
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- 229920000642 polymer Polymers 0.000 claims abstract description 43
- 239000005264 High molar mass liquid crystal Substances 0.000 claims abstract description 20
- 239000004983 Polymer Dispersed Liquid Crystal Substances 0.000 claims abstract description 16
- 239000004973 liquid crystal related substance Substances 0.000 claims description 17
- 238000006116 polymerization reaction Methods 0.000 claims description 3
- 230000000644 propagated effect Effects 0.000 claims description 3
- 238000006471 dimerization reaction Methods 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 238000003384 imaging method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000004815 dispersion polymer Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
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
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1334—Constructional arrangements; Manufacturing methods based on polymer dispersed liquid crystals, e.g. microencapsulated liquid crystals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/30—Image reproducers
- H04N13/302—Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays
- H04N13/32—Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays using arrays of controllable light sources; using moving apertures or moving light sources
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/30—Image reproducers
- H04N13/349—Multi-view displays for displaying three or more geometrical viewpoints without viewer tracking
- H04N13/351—Multi-view displays for displaying three or more geometrical viewpoints without viewer tracking for displaying simultaneously
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/30—Image reproducers
- H04N13/363—Image reproducers using image projection screens
Landscapes
- Physics & Mathematics (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Chemical & Material Sciences (AREA)
- Optics & Photonics (AREA)
- Liquid Crystal (AREA)
- Dispersion Chemistry (AREA)
- Mathematical Physics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
Abstract
The invention proposes a kind of multi-viewpoint three-dimensional display devices.The multi-viewpoint three-dimensional display device is made of planar light display panel, first polymer dispersed LCD plate, second polymer dispersed LCD plate and beam splitter.First and second polymer dispersed liquid crystals plate constantly replaces between scattering and transparent two states, for receiving the synthesized parallax image of the planar light display panel projection.Synchronization, only unique polymer dispersed liquid crystals plate are in scattering states.The synthesized parallax image of planar light display panel projection will image in polymer liquid crystal Board position in scattering states.The synthesized parallax image imaged on polymer dispersed liquid crystals plate can be projected different direction in spaces by beam splitter, because first and second light splitting polymer dispersed liquid crystals Board position is different, then can form the viewpoint of different viewing ratios.Viewer can see stereo-picture according in different viewing ratio.
Description
Technical field
The present invention relates to display technologies, it is more particularly related to stereo display technique.
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.So
And conventional stereo display device is only capable of showing corresponding stereoscopic parallax image on viewing ratio position.Therefore, of the invention
A kind of multi-viewpoint three-dimensional display device is proposed, which has wider array of viewing range relative to conventional stereo display device.
Summary of the invention
The invention proposes a kind of multi-viewpoint three-dimensional display devices.Attached drawing 1 is the structure of the multi-viewpoint three-dimensional display device
Schematic diagram.The multi-viewpoint three-dimensional display device is by planar light display panel, first polymer dispersed LCD plate, second polymer point
Dissipate liquid crystal board and beam splitter composition.The planar light display panel is to project synthesized parallax image.Its parallax shown closes
It is collimated light beam at the light that pixel each in image is issued, is only propagated on a direction in space.First polymerization
Object dispersed LCD plate and the second polymer dispersed LCD plate are placed in front of planar light display panel, described flat for receiving
The synthesized parallax image of face light display panel projection.The first polymer dispersed LCD plate, the second polymer dispersion liquid
Crystalline substance can be converted between scattering and transparent two states.Synchronization, only unique one block of polymer dispersed liquid crystals plate is in scattering
State.When first polymer liquid crystal board is in scattering states, when the transparent state of second polymer liquid crystal board, then the planar light display panel
The synthesized parallax image of projection will image in first polymer liquid crystal Board position.Conversely, when first polymer liquid crystal board is transparent
State, when second polymer liquid crystal board is in scattering states, then the synthesized parallax image of the planar light display panel projection will image in
Second polymer liquid crystal Board position.Beam splitter is placed in the first polymer dispersed LCD plate and second polymer dispersion
Before liquid crystal board, the synthesized parallax image imaged on polymer dispersed liquid crystals plate to be projected to different direction in spaces,
To form viewpoint.It can see corresponding anaglyph when human eye point is in different points of view position, to generate solid
Vision.
If the pitch of beam splitter isp, belong to the pixel section of same anaglyph in synthesized parallax image in horizontal direction
Away from forl, the spacing of first polymer dispersed LCD plate to beam splitter isd1, second polymer dispersed LCD plate to beam splitter
Spacing bed2, when synthesized parallax image images in first polymer liquid crystal Board position, viewing ratio isD1, work as parallax
When composograph images in second polymer liquid crystal Board position, viewing ratio isD2, then above-mentioned parameter meetsD1=pd1/
(l-p) andD2=pd2/(l-p)。
Time division multiplexing ground, the scattering of the first polymer dispersed LCD plate and the second polymer dispersed LCD plate and
Pellucidity is alternately converted, and provides viewing ratio therewith corresponding parallax composite diagram respectively by directional light display panel
Picture.
Optionally, beam splitter can may be Lenticular screen for slit grating.
Optionally, settable additional polymer dispersed liquid crystals plate is to form more multiple views.
Optionally, directional light display panel occurs with source of parallel light and the combining form of liquid crystal display panel.
Optionally, when the light ray parallel degree issued to directional light display panel is of less demanding, directional light display panel can
Replace with projector.
In the present invention, since the first polymer dispersed LCD plate and the second polymer dispersed LCD plate are scattering
Constantly replace between transparent two states, viewer can see stereo-picture in different viewing ratio.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is the schematic illustration of polymer dispersed liquid crystals plate in the present invention.
Fig. 3 is the schematic illustration that the present invention realizes long sight distance.
Icon: 010- multi-viewpoint three-dimensional display device；100- planar light display panel；210- first polymer dispersed LCD
Plate；220- second polymer dispersed LCD plate；300- beam splitter；020- polymer dispersed liquid crystals plate optical path；030- long sight distance
Mode optical path.
It should be understood that above-mentioned attached drawing is only schematical, it is not drawn to draw.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.The present invention being usually described and illustrated herein in the accompanying drawings is implemented
The component of example can be arranged and be designed with a variety of different configurations.
Therefore, the detailed description of the embodiment of the present invention provided in the accompanying drawings is not intended to limit below claimed
The scope of the present invention, but be merely representative of selected embodiment of the invention.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without making creative work belongs to the model that the present invention protects
It encloses.
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 multi-viewpoint three-dimensional display device 010 provided in this embodiment.X coordinate indicates empty in figure
Between in horizontal direction, the vertical direction in y coordinate representation space, z indicates the direction vertical with x-y plane.Fig. 1 is please referred to,
The present embodiment provides a kind of multi-viewpoint three-dimensional display devices 010, by planar light display panel 100, first polymer dispersed LCD
Plate 210, second polymer dispersed LCD plate 220 and beam splitter 300 form.
Multi-viewpoint three-dimensional display device 010 provided in this embodiment is further described below.
The planar light display panel 100 is to project synthesized parallax image.The planar light display panel 100 is by parallel
Light source and liquid crystal display panel are composed.Source of parallel light is made of point light source and lens, and point light source places the focus of lens
Position can form collimated light beam by the light that point light source emits after lens reflect.Liquid crystal display panel is placed in front of lens,
The synthesized parallax image that the collimated light beam formed is reflected by lens to provide liquid crystal display panel projects.Then it shows
The light that each pixel is issued in synthesized parallax image is collimated light beam, and is only propagated on a direction in space.
It is aobvious that the first polymer dispersed LCD plate 210, the second polymer dispersed LCD plate 220 are placed in planar light
Before showing panel 100, for receiving the synthesized parallax image of the projection of planar light display panel 100.Referring to figure 2., first
Polymer dispersed liquid crystals plate 210 is identical as second polymer dispersed LCD plate 220, is provided on upper and lower two layers of polymers material
Electrode is provided with equally distributed liquid crystal particle between electrode, can switch between transparent two states scattering.Polymer
Dispersed LCD plate optical path 020 can refer to Fig. 2.When not applying voltage on the electrode in polymer dispersed liquid crystals plate 300, between electrode
Regular electric field cannot be formed, the direction of optic axis of liquid crystal particle is random, present disordered state, effective refractive index not with polymerize
The index matching of object, incident ray are scattered strongly.When between electrode apply voltage when, the refractive index of liquid crystal particle with polymerize
The refractive index of object matches substantially, and polymer liquid crystal plate 300 is transparent, and incident light will not scatter.
Synchronization, only unique one block of polymer dispersed liquid crystals plate are in scattering states.When first polymer liquid crystal board 210
In scattering states, when second polymer 220 transparent state of liquid crystal board, then the planar light display panel 100 projects parallax synthesis
Image will image in 210 position of first polymer liquid crystal board.Conversely, working as the transparent state of first polymer liquid crystal board 210, second is poly-
When closing object liquid crystal board 220 in scattering states, then the synthesized parallax image that the planar light display panel 100 projects will image in second
220 position of polymer liquid crystal plate.
Beam splitter 300 is prepared by slit grating, is placed in the first polymer dispersed LCD plate 210 and described
Before dimerization object dispersed LCD plate 200, the synthesized parallax image imaged on polymer dispersed liquid crystals plate to be projected
Different direction in space, to form viewpoint.
In the present embodiment, as its pitch of the slit grating of beam splitter 300pIt is 2 mm, horizontal in synthesized parallax image
Belong to the pixel pitch of same anaglyph on directionlIt is 2.01 mm, first polymer dispersed LCD plate 210 to beam splitter
300 spacingd1 is 5 mm, the spacing of second polymer dispersed LCD plate 220 to beam splitter 300d2 be 6 mm。
Referring to FIG. 1, when synthesized parallax image images in first polymer 210 position of liquid crystal board, viewing ratioD1
It is 1000mm, can be apart from 300 position 1000 of beam splittermmPlace forms viewpoint.Above-mentioned parameter meetsD1=pd1/(l-p)。
Referring to FIG. 3, when synthesized parallax image images in second polymer 220 position of liquid crystal board, viewing ratioD2 be 1200mm, can be apart from 300 position 1200 of beam splittermmPlace forms viewpoint.Above-mentioned parameter meetsD2=pd2/(l-p)。
Time division multiplexing ground, the first polymer dispersed LCD plate 210 and the second polymer dispersed LCD plate 220
Scattering and pellucidity are alternately converted, and provide the corresponding view of viewing ratio therewith respectively by directional light display panel 100
Poor composograph.It then can be in viewing ratio 1000mmAnd 1200mmMultiple viewpoints are formed at position.When human eye exists respectively
It can see corresponding anaglyph when different points of view position, to generate stereoscopic vision.
In the present invention, due to the first polymer dispersed LCD plate 210 and the second polymer dispersed LCD plate 220
Constantly replace between scattering and transparent two states, viewer can see stereo-picture in different viewing ratio.
Claims (7)
1. a kind of multi-viewpoint three-dimensional display device, it is characterised in that: the multi-viewpoint three-dimensional display device by planar light display panel,
First polymer dispersed LCD plate, second polymer dispersed LCD plate and beam splitter composition, the planar light display panel are used
To project synthesized parallax image, the light that each pixel is issued in the synthesized parallax image of display is collimated light beam, only
It is propagated on a direction in space, the first polymer dispersed LCD plate and the second polymer dispersed LCD plate are placed in
Before planar light display panel, for receiving the synthesized parallax image of the planar light display panel projection, first polymerization
Object dispersed LCD plate, the second polymer dispersed LCD can be converted between scattering and transparent two states, synchronization, only
Unique one block of polymer dispersed liquid crystals plate is in scattering states, when first polymer liquid crystal board is in scattering states, second polymer liquid crystal
When the transparent state of plate, then the synthesized parallax image of the planar light display panel projection will image in first polymer liquid crystal board position
It sets, conversely, working as the transparent state of first polymer liquid crystal board, when second polymer liquid crystal board is in scattering states, then the planar light is aobvious
Show that the synthesized parallax image of panel projection will image in second polymer liquid crystal Board position, beam splitter is placed in first polymerization
Before object dispersed LCD plate and the second polymer dispersed LCD plate, to the view that will be imaged on polymer dispersed liquid crystals plate
Poor composograph projects different direction in spaces, to form viewpoint, can see when human eye point is in different points of view position
Corresponding anaglyph, to generate stereoscopic vision.
2. a kind of multi-viewpoint three-dimensional display device as described in claim 1, it is characterised in that: set the pitch of beam splitter asp,
The pixel pitch for belonging to same anaglyph in synthesized parallax image in horizontal direction isl, first polymer dispersed LCD plate arrives
The spacing of beam splitter 300 isd1, the spacing of second polymer dispersed LCD plate 220 to beam splitter 300 isd2, when parallax closes
When imaging in first polymer 210 position of liquid crystal board at image, viewing ratio isD1, when synthesized parallax image images in
When dimerization object 220 position of liquid crystal board, viewing ratio isD2, then above-mentioned parameter meetsD1=pd1/(l-p) andD2=pd2/
(l-p)。
3. a kind of multi-viewpoint three-dimensional display device as described in claim 1, it is characterised in that: time division multiplexing ground, described first
The scattering of polymer dispersed liquid crystals plate and the second polymer dispersed LCD plate and pellucidity are alternately converted, and by directional light
Display panel provides the corresponding synthesized parallax image of viewing ratio therewith respectively.
4. a kind of multi-viewpoint three-dimensional display device as described in claim 1, it is characterised in that: beam splitter can be slit light
Grid may be Lenticular screen.
5. a kind of multi-viewpoint three-dimensional display device as described in claim 1, it is characterised in that: settable additional polymer point
Liquid crystal board is dissipated to form more multiple views.
6. a kind of multi-viewpoint three-dimensional display device as described in claim 1, it is characterised in that: directional light display panel is with parallel
The combination of light source and liquid crystal display panel is constituted.
7. a kind of multi-viewpoint three-dimensional display device as described in claim 1, it is characterised in that: sent out directional light display panel
When light ray parallel degree out is of less demanding, directional light display panel can be replaced projector.
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| CN201910318373.6A CN110012285B (en) | 2019-04-19 | 2019-04-19 | Multi-view stereoscopic display device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910318373.6A CN110012285B (en) | 2019-04-19 | 2019-04-19 | Multi-view stereoscopic display device |
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| CN110012285B CN110012285B (en) | 2023-11-10 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110161796A (en) * | 2019-07-01 | 2019-08-23 | 成都工业学院 | A kind of stereo projection apparatus based on double lens array |
| CN110262051A (en) * | 2019-07-26 | 2019-09-20 | 成都工业学院 | A kind of reflex reflection 3 d display device based on directional light |
| CN110286516A (en) * | 2019-08-02 | 2019-09-27 | 成都工业学院 | A kind of 3 d display device that slot pitch is variable |
| CN110456549A (en) * | 2019-09-26 | 2019-11-15 | 成都工业学院 | A kind of adjustable 3 d display device of viewing ratio |
| CN112505941A (en) * | 2021-02-04 | 2021-03-16 | 成都工业学院 | Non-uniform viewing area distribution stereoscopic display device based on rear light source strip |
| CN113281940A (en) * | 2021-07-23 | 2021-08-20 | 成都工业学院 | High-resolution display device based on super surface |
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