CN109343229A - A kind of 3 d display device of long sight distance - Google Patents
A kind of 3 d display device of long sight distance Download PDFInfo
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- CN109343229A CN109343229A CN201811486636.6A CN201811486636A CN109343229A CN 109343229 A CN109343229 A CN 109343229A CN 201811486636 A CN201811486636 A CN 201811486636A CN 109343229 A CN109343229 A CN 109343229A
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- lenticular screen
- scattering layer
- distance
- long sight
- display device
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- 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
Abstract
The invention proposes a kind of 3 d display devices of long sight distance.The 3 d display device of the long sight distance is made of 2D display panel, the first Lenticular screen, scattering layer and the second Lenticular screen.It is sequentially placed before and after the 2D display panel, first Lenticular screen, the scattering layer and second Lenticular screen.Pixel on the 2D display panel is arranged according to periodic unit.Include the pixel from different anaglyphs in periodic unit.Each periodic unit can be reduced by the first Lenticular screen to be imaged at the scattering layer.The scattering layer can be by the picture forescatering of periodic unit, and projects assigned direction through the second Lenticular screen, forms viewpoint.When human eye point is in different points of view position, it can be seen that the anaglyph that is corresponding to it is to realize stereoscopic vision.
Description
Technical field
The present invention relates to display technologies, it is more particularly related to 3D 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.It is beam splitter usually using slit grating, cylindrical lens, will
Pixel projection on 2D display panel is to assigned direction, to form viewpoint.It, can be with when human eye point is in different points of view position
Corresponding anaglyph is seen, to realize stereoscopic vision.Conventional stereo display device is when being divided, from not
For light with anaglyph pixel when projecting corresponding viewpoint position, geometrical relationship meets similar triangle theory.So
When sighting distance farther out, i.e., viewpoint position away from display distance farther out when, due to above-mentioned similar triangle theory, on 2D display panel
Pel spacing should minimize.But the spacing of pixel is limited by display fabrication process, therefore the invention proposes one
The 3 d display device of kind long sight distance.
Summary of the invention
The invention proposes a kind of 3 d display devices of long sight distance.Attached drawing 1 is the 3 d display device of the long sight distance
Structure principle chart.The 3 d display device of the long sight distance is saturating by 2D display panel, the first Lenticular screen, scattering layer and the second column
Mirror grating composition.Before the 2D display panel, first Lenticular screen, the scattering layer and second Lenticular screen
After be sequentially placed.Pixel on the 2D display panel is arranged according to periodic unit.Comprising from not in periodic unit
With the pixel of anaglyph.Each periodic unit can be reduced by the first Lenticular screen to be imaged at the scattering layer.It is described
Scattering layer can be by the picture forescatering of periodic unit, and projects assigned direction through the second Lenticular screen, forms viewpoint.When
When human eye point is in different points of view position, it can be seen that the anaglyph that is corresponding to it is to realize stereoscopic vision.
Since the first Lenticular screen does not have imaging effect in vertical direction, light is not influenced in vertical direction
It propagates, therefore the scattering layer is also one-dimensional scattering layer, is only capable of scattering light in the horizontal direction, therefore on the 2D display panel
Pixel by first Lenticular screen, the scattering layer and when second Lenticular screen, light is in Vertical Square
Upward transmission is unaffected, and direction remains unchanged.Preferably scattering layer can be by the Lenticular screen of pitch and the equal very little of focal length
Preparation.
If the focal length of the first Lenticular screen of 3 d display device of the long sight distance isf, 2D display panel pixel spacing isp 1, the distance of 2D display panel to the first Lenticular screen isl 1, the distance of the first Lenticular screen to scattering layer isl 2, scattering
Layer is to the distance of the second Lenticular screenl 3, the distance of the second Lenticular screen to viewpoint isl 4, viewpoint spacing isp 2.It is preferred that
Ground, above-mentioned parameter should meet:,,。
FormulaIn, due to item, andEffect, then can increase the second Lenticular screen and arrive viewpoint
Distance, thus keeping 2D display panel pixel spacingp 1, viewpoint spacingp 2And scattering layer is to the distance of the second Lenticular screenl 3
In the case where constant, realize that the stereo-picture of long sight distance is shown.
Optionally, to reduce crosstalk, light barrier can be added between periodic unit.
Optionally, each periodic unit can form on the scattering layer multiple pictures by the first Lenticular screen.
Optionally, the first Lenticular screen can be replaced slit grating.
Optionally, the second Lenticular screen can be replaced slit grating.
In the present invention, since the 3 d display device of the long sight distance can will be on 2D display panel using the first Lenticular screen
Pixel period unit diminution image in scattering layer, to reduce the spacing of pixel imaging, therefore the display can be at it
Long sight distance is obtained in the case that his condition is constant.Relative to conventional stereo display device, the stereoscopic display of long sight distance of the present invention is filled
It sets and is more applicable for the farther away occasion of viewing distance, such as square, movie theatre.
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 light path principle schematic diagram of the invention.
Icon: the 3 d display device of 010- long sight distance；100-2D display panel；The first Lenticular screen of 200-；300-
Scattering layer；The second Lenticular screen of 400-；The 3 d display device light path principle schematic diagram of 020- long sight distance；500- light barrier；
110- belongs to the pixel of anaglyph 1；120- belongs to the pixel of anaglyph 2；130- belongs to the pixel of anaglyph 3；140-
Belong to the pixel of anaglyph 4；150- belongs to the pixel of anaglyph 5；160- belongs to the pixel of anaglyph 6；610- parallax
The view region of image 1；The view region of 620- anaglyph 2；The view region of 630- anaglyph 3；640- anaglyph 4
View region；The view region of 650- anaglyph 5；The view region of 660- anaglyph 6.
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.
In the description of the embodiment of the present invention, it should be noted that term " first ", " second " etc. are only used for distinguishing and retouch
It states, is not understood to indicate or imply relative importance.
Embodiment
Fig. 1 is the structural schematic diagram of the 3 d display device 010 of long sight distance provided in this embodiment, and x coordinate indicates in figure
Horizontal direction in space, the vertical direction in y coordinate representation space, the direction z indicate the axial direction perpendicular to x-y plane.
Fig. 1 is please referred to, the present embodiment provides a kind of 3 d display devices 010 of long sight distance comprising 2D display panel 100, the first column
Lenticulation 200, scattering layer 300 and the second Lenticular screen 400.
The 3 d display device 010 of long sight distance provided in this embodiment is further described below.
2D display panel 100, the first Lenticular screen 200, scattering layer 300 and 400 front and back of the second Lenticular screen are successively
It places.Pixel on 2D display panel 100 is arranged according to periodic unit.Comprising from different disparity maps in periodic unit
The pixel of picture.The pixel 110 of anaglyph 1 is subordinated to the pixel 160 for belonging to anaglyph 6, pixel in periodic unit according to
Secondary arrangement.Each periodic unit can be reduced by the first Lenticular screen 200 to be imaged at the scattering layer 300.The scattering
Layer 300 can be by the picture forescatering of periodic unit, and projects assigned direction through the second Lenticular screen 400, forms viewpoint.
When human eye point is in different points of view position, it can be seen that the anaglyph that is corresponding to it is to realize stereoscopic vision.
It is acted on since the first Lenticular screen 200 does not have imaging in vertical direction, does not influence light in vertical direction
On propagation, therefore the scattering layer 300 be one-dimensional scattering layer, be only capable of scattering light in the horizontal direction, therefore the 2D is shown
Pixel on panel 100 is by first Lenticular screen 200, the scattering layer 300 and second Lenticular screen
When 400, the transmission of light in vertical direction is unaffected, and direction remains unchanged.The scattering layer 300 by pitch and focal length very
Small Lenticular screen preparation.
Fig. 2 is the light path principle schematic diagram of the 3 d display device 010 of long sight distance of the invention, and x coordinate indicates empty in figure
Between in horizontal direction, the vertical direction in y coordinate representation space, the direction z indicates the axial direction perpendicular to x-y plane.Please
Referring to Fig. 2, belong to the pixel 110 of anaglyph 1, the pixel 120 for belonging to anaglyph 2, the pixel 130 for belonging to anaglyph 3,
Belong to the pixel 140 of anaglyph 4, the pixel 150 for belonging to anaglyph 5, belong to the pixel 160 of anaglyph 6 in the x direction
It is arranged successively, forms periodic unit.First Lenticular screen 200 can be by the pixel 110 for belonging to anaglyph 1 to belonging to disparity map
As the pixel of 6 pixel 160 is imaged to 300 position of scattering layer.In this imaging process, 2D display panel to the first cylindrical lens
The distance of grating is object distance, and the distance of the first Lenticular screen to scattering layer is image distance, according to lens image formation rule, when object distance is big
When image distance, it is imaged as standing upside down and reduces real image.Then the first Lenticular screen 200 can arrive the pixel 110 for being subordinated to anaglyph 1
Belong to the periodic unit diminution that the pixel of the pixel 160 of anaglyph 6 is constituted to image at scattering layer 300.In imaging, as
Element put in order on 2D display panel 100 pixel put in order it is opposite.Scattering layer can will reduce formed by periodic unit
Assigned direction is projected as forescatering, and through the second Lenticular screen 400, forms viewpoint.Similarly, it is advised according to lens imaging
Rule, in 400 projection process of the second Lenticular screen, pixel arrangement sequence inverts again, finally the shape in viewing ratio
The view region set being arranged successively at the view region 660 of the view region 610 from anaglyph 1 to anaglyph 6.It is each
The pixel arrangement sequence consensus that the view region of anaglyph puts in order with anaglyph on 2D display panel.
If the focal length of 010 first Lenticular screen 200 of 3 d display device of the long sight distancefFor 4.5455 mm, 2D is shown
100 pel spacing of panelp 1For 0.3 mm, the distance of the 100 to the first Lenticular screen of 2D display panel 200l 1For 50 mm, first
Lenticular screen 200 arrives the distance of scattering layer 300l 2For 5 mm, the distance of the 300 to the second Lenticular screen of scattering layer 400l 3For
10 mm, the second Lenticular screen 400 arrive the distance of viewpointl 4For 22m, viewpoint spacingp 2For 66m, above-mentioned parameter meets:,,。
FormulaIn, due to, then the distance of the second Lenticular screen to viewpoint can be increased into 22 m,
Realize that the stereo-picture of long sight distance is shown.
Claims (6)
1. a kind of 3 d display device of long sight distance, it is characterised in that: the 3 d display device of the long sight distance by 2D display panel,
First Lenticular screen, scattering layer and the second Lenticular screen composition, the 2D display panel, first Lenticular screen,
It is sequentially placed before and after the scattering layer and second Lenticular screen, the pixel on the 2D display panel is according to periodic unit
It arranges, comprising the pixel from different anaglyphs in periodic unit, each periodic unit can pass through the first cylindrical lens
Grating diminution images at the scattering layer, and the scattering layer can be and saturating through the second column by the picture forescatering of periodic unit
Mirror grating loss forms viewpoint to assigned direction, when human eye point is in different points of view position, it can be seen that be corresponding to it parallax
Image is to realize stereoscopic vision.
2. a kind of 3 d display device of long sight distance as described in claim 1, it is characterised in that: the solid for setting the long sight distance is aobvious
The focal length of the first Lenticular screen of showing device isf, 2D display panel pixel spacing isp 1, 2D display panel to the first cylindrical lens light
The distance of grid isl 1, the distance of the first Lenticular screen to scattering layer isl 2, the distance of scattering layer to the second Lenticular screen isl 3, the distance of the second Lenticular screen to viewpoint isl 4, viewpoint spacing isp 2, above-mentioned parameter should meet:,,。
3. a kind of 3 d display device of long sight distance as described in claim 1, it is characterised in that: gear can be added between periodic unit
Tabula rasa.
4. a kind of 3 d display device of long sight distance as described in claim 1, it is characterised in that: each periodic unit can pass through
First Lenticular screen forms multiple pictures on the scattering layer.
5. a kind of 3 d display device of long sight distance as described in claim 1, it is characterised in that: the first Lenticular screen can replace
It is changed to slit grating.
6. a kind of 3 d display device of long sight distance as described in claim 1, it is characterised in that: the second Lenticular screen can replace
It is changed to slit grating.
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| CN201811486636.6A CN109343229B (en) | 2018-12-06 | 2018-12-06 | Stereoscopic display device for far vision |
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| CN201811486636.6A CN109343229B (en) | 2018-12-06 | 2018-12-06 | Stereoscopic display device for far vision |
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| CN109725430A (en) * | 2019-03-06 | 2019-05-07 | 成都工业学院 | A kind of 3 d display device of empty poly- mixing imaging |
| CN110012286A (en) * | 2019-05-07 | 2019-07-12 | 成都工业学院 | A kind of human eye tracking 3 d display device of high viewpoint density |
| CN110174767A (en) * | 2019-05-13 | 2019-08-27 | 成都工业学院 | A kind of nearly eye display device of super multiple views |
| CN110286496A (en) * | 2019-07-22 | 2019-09-27 | 成都工业学院 | A kind of 3 d display device based on preposition directional light |
| CN110286495A (en) * | 2019-07-08 | 2019-09-27 | 成都工业学院 | A kind of reflex reflection 3 d display device based on array of source |
| 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 |
| CN113050294A (en) * | 2021-04-09 | 2021-06-29 | 成都工业学院 | Low-crosstalk three-dimensional display device without color moire fringes |
| CN116338975A (en) * | 2023-05-30 | 2023-06-27 | 成都工业学院 | Stereoscopic display device based on display bar array |
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| CN109725430A (en) * | 2019-03-06 | 2019-05-07 | 成都工业学院 | A kind of 3 d display device of empty poly- mixing imaging |
| CN110012286B (en) * | 2019-05-07 | 2023-04-25 | 成都工业学院 | High-viewpoint-density human eye tracking stereoscopic display device |
| CN110012286A (en) * | 2019-05-07 | 2019-07-12 | 成都工业学院 | A kind of human eye tracking 3 d display device of high viewpoint density |
| CN110174767A (en) * | 2019-05-13 | 2019-08-27 | 成都工业学院 | A kind of nearly eye display device of super multiple views |
| CN110174767B (en) * | 2019-05-13 | 2024-02-27 | 成都工业学院 | Super-multi-view near-to-eye display device |
| CN110286495A (en) * | 2019-07-08 | 2019-09-27 | 成都工业学院 | A kind of reflex reflection 3 d display device based on array of source |
| CN110286495B (en) * | 2019-07-08 | 2023-12-29 | 成都工业学院 | Retroreflective stereoscopic display device based on light source array |
| CN110286496B (en) * | 2019-07-22 | 2024-01-30 | 成都工业学院 | Stereoscopic display device based on front directional light source |
| CN110286496A (en) * | 2019-07-22 | 2019-09-27 | 成都工业学院 | A kind of 3 d display device based on preposition 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 |
| CN110286516B (en) * | 2019-08-02 | 2024-02-20 | 成都工业学院 | Three-dimensional display device with variable slit pitch |
| 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 |
| CN110456549B (en) * | 2019-09-26 | 2024-02-13 | 成都工业学院 | Stereoscopic display device with adjustable optimal viewing distance |
| CN113050294A (en) * | 2021-04-09 | 2021-06-29 | 成都工业学院 | Low-crosstalk three-dimensional display device without color moire fringes |
| CN116338975A (en) * | 2023-05-30 | 2023-06-27 | 成都工业学院 | Stereoscopic display device based on display bar array |
| CN116338975B (en) * | 2023-05-30 | 2023-07-28 | 成都工业学院 | Stereoscopic display device based on display bar array |
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