CN107179612A - A kind of new free 3D displays without crosstalk and without resolution loss - Google Patents
A kind of new free 3D displays without crosstalk and without resolution loss Download PDFInfo
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- CN107179612A CN107179612A CN201710382971.0A CN201710382971A CN107179612A CN 107179612 A CN107179612 A CN 107179612A CN 201710382971 A CN201710382971 A CN 201710382971A CN 107179612 A CN107179612 A CN 107179612A
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- lenticular screen
- liquid crystal
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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
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- 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
- G02F1/1313—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 specially adapted for a particular application
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Nonlinear Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Liquid Crystal (AREA)
Abstract
The present invention discloses a kind of new free 3D displays without crosstalk and without resolution loss, backlight, Grating Film, optically focused Lenticular screen plate, liquid crystal row photoswitch plate, collimate Lenticular screen plate, liquid crystal 2D image display panels are sequentially arranged in framework from inside to outside, liquid crystal row photoswitch plate has switch element, switch element has 3 sub- switch elements, the raster unit of Grating Film, the raster unit and sub switch unit of optically focused Lenticular screen plate are corresponded, the raster unit of raster unit 3 optically focused Lenticular screen plates of correspondence of every 1 collimation Lenticular screen plate, the invention has the advantages that：Reduce diverging, serious crosstalk can be formed into view region simultaneously by avoiding multiple angle light, and by controlling circuit to control sub switch unit switch, the horizontal parallax image of reversed order is can't see in intersectional region, it will not cause and not accommodate dizziness, while reducing display cost.
Description
Technical field
The present invention be applied to stereo display technique field, and in particular to it is a kind of it is new without crosstalk and without resolution loss from
By 3D displays.
Background technology
Bore hole 3D Display Techniques make beholder pluck 3D glasses, improve viewing comfortableness.Light based on binocular parallax
The free 3D displays of grating are a kind of important 3D displays, according to the difference of grating material, can be divided into slit grating and post mirror
Grating bore hole 3D shows 2 kinds, and the free 3D displays of Lenticular screen have brightness high, and viewing comfort level is shown better than slit grating
The advantages of device.But Lenticular screen, when carrying out light splitting to composograph, some viewpoint comes from correspondence parallax except receiving
Outside the light that image sub-pixels are sent, it can also receive and come from the light that adjacent parallax image sub-pixels are sent, this is just
The crosstalk of image between viewpoint is generated, and because image pixel is divided into the sub-pixel of several viewpoints, resolution loss
It is very big, the picture quality of 3D displays is have impact on, beholder's viewing comfort level is reduced, for cross-interference issue, people have pointed out
Various methods, the side for such as by correcting composograph sub-pixel luminance values the picture crosstalk between adjacent viewpoint being eliminated
Method, crosstalk is reduced by analyzing the relation of image sub-pixel position and lens array, and crosstalk is eliminated with polarized lens array,
The above method can improve the cross-interference issue of image between viewpoint to a certain extent, but can't solve resolution loss and ask
Topic；Directional backlight bore hole 3D solutions can keep original resolution ratio of liquid crystal panel constant, but the solution is present sternly
Weight defect, by taking 5 viewpoint schemes as an example, one is backlight is the angle of divergence very big uniform area light source, multiple angles of different pixels
Degree light can enter view region simultaneously, form serious crosstalk；The second is LCD optical modulators are opened in timesharing, for 5 viewpoint schemes
Its image display brightness will be reduced to original 1/5；The third is the intersectional region horizontal parallax image in the picture area of adjacent cells is suitable
Sequence is overturned, and not only can also be caused without stereoeffect during viewing and seriously not accommodated dizziness；The fourth is liquid crystal image display panel 74
Image refreshing speed to improve 5 times, this is that general LCD monitor is difficult to, or the manufacture that will greatly improve display
Cost.
The content of the invention
In view of this, it is higher and lower-cost one kind is new without crosstalk, brightness it is an object of the invention to provide one kind
Free 3D displays without crosstalk and without resolution loss.
In order to reach above-mentioned purpose, solution of the invention is：
A kind of new free 3D displays without crosstalk and without resolution loss, are opened with framework, backlight, liquid crystal row light
Close plate, collimation Lenticular screen plate, liquid crystal 2D image display panels and enter for liquid crystal row photoswitch plate described in Time-sharing control
The control circuit of row switch, the backlight, the liquid crystal row photoswitch plate, the collimation Lenticular screen plate and the liquid crystal
2D image display panels are sequentially arranged in the framework from inside to outside, and the backlight includes light guide plate and is arranged on light guide plate
The white light LEDs lamp bar of both sides, the grating face of the collimation Lenticular screen plate dorsad liquid crystal row photoswitch plate, it is special
Levy and be：Also include the light for making the emergent ray deviation of the backlight for the quasi-parallel light on the orthogonal direction of the light guide plate
Grid film and the optically focused Lenticular screen plate for converging the quasi-parallel light, the optically focused Lenticular screen plate are arranged on described
Between light guide plate and the liquid crystal row photoswitch plate, the grating of the optically focused Lenticular screen plate is facing to the light guide plate, institute
State Grating Film to be closely sticked in the light guide plate towards on the side of the liquid crystal row photoswitch plate, the grating face of the Grating Film
Towards the optically focused Lenticular screen plate, the liquid crystal surface of the liquid crystal row photoswitch plate is arranged at the optically focused Lenticular screen plate
Focal plane on；
The framework is the framework with black floor, and the black floor surface is mat surface；
The light guide plate be two sides be shiny surface flat board；
The Grating Film, the optically focused Lenticular screen plate and the collimation Lenticular screen plate are respectively provided with vertically
The raster unit of setting, the liquid crystal row photoswitch plate has the switch element vertically set, the switch element tool
There are 3 wide sub- switch elements, 3 sub switch unit horizontals are arranged side by side；
The raster unit of the Grating Film, the raster unit of the optically focused Lenticular screen plate and the sub switch unit one
One correspondence, the grating list of raster unit 3 optically focused Lenticular screen plates of correspondence of every 1 collimation Lenticular screen plate
Member.
The Grating Film is that smooth flat another side is the raster unit structure for being arranged with some triangular prism shapes for one side
High transparency thin polymer film, the smooth flat is brought into close contact on the light guide plate.
The one side of the optically focused Lenticular screen plate is smooth flat, and another side is the grating for being arranged with some semi-cylindricals
The grating plate face of unit.
The one side of the collimation Lenticular screen plate is smooth flat, and another side is the grating for being arranged with some semi-cylindricals
The grating plate face of unit.
The light guide plate, the optically focused Lenticular screen plate and the collimation Lenticular screen plate are high transparency acrylic
Plate.
After said structure, a kind of new free 3D displays without crosstalk and without resolution loss of the present invention have with
Lower beneficial effect：
First, be provided between backlight and liquid crystal row photoswitch plate make the emergent ray deviation of backlight for light guide plate just
The Grating Film of the quasi-parallel light on direction is handed over, and for converging the optically focused Lenticular screen plate of above-mentioned quasi-parallel light, liquid crystal row
The liquid crystal surface of photoswitch plate is positioned on the focal plane of optically focused Lenticular screen plate.So, the quasi-parallel light projected from Grating Film
Further converged on liquid crystal row photoswitch plate through optically focused Lenticular screen plate, greatly reinforced liquid crystal row photoswitch plate emergent light
Brightness, meanwhile, the switch element of liquid crystal row photoswitch plate is provided with 3 row sub switch units, if above-mentioned three row sub switch unit
Sequence number it is left-to-right be respectively 1,2 and 3, carry out 2D-3D switchings when, adjusting control circuit opens serial number 1 and 2 liang of height
Pass unit is opened in turn, the sub switch unit of serial number 3 is closed, it is ensured that brightness during display 3D rendering is with showing during 2D images
Brightness it is basically identical, in addition, the picture area of the right viewpoint of sub switch unit correspondence of serial number 1, the sub switch unit pair of serial number 2
Answer the picture area of left view point, the sub switch unit of serial number 3 is closed all the time when showing 3D rendering, thus in the picture area of right viewpoint and
The dark image that left view point corresponding to next group of switch element is formed as the intersectional region in area for the sub switch unit of serial number 3
Area, therefore the horizontal parallax image of reversed order is can't see in this intersectional region, left image or right view image are can only see, no
It can cause and not accommodate dizziness.
2nd, free 3D display of the present invention without crosstalk and without resolution loss, uses framework for black floor
Framework, different from common LCD backlight use white bottom plate, the black floor surface be mat surface rather than shiny surface, this
Sample makes the backlight of the present invention not to be the luminous light source of uniform；The light guide plate is that two sides is the high saturating of smooth flat
Bright acrylic board, the light guide plate with site used different from common LCD backlight so makes the outgoing of the backlight of the present invention
Light can be controlled；The light that backlight is sent after Grating Film along light guide plate orthogonal direction deviation, as close to light guide plate
The emergent ray of orthogonal direction, makes backlight light concentrate and no longer dissipate, it is to avoid uniform area light source different pixels it is multiple
The problem of angle light can form serious crosstalk into view region simultaneously.
3rd, the present invention is when display screen shows left view image and right view image, in the sub switch unit wheel of photopic vision point
Stream is opened and closed, and refreshing frequency is changed into original 2 times, and the image refreshing speed of liquid crystal 2D image display panels need to only improve 1
Times, general LCD monitor is achieved that, it is possible to decrease manufacturing cost.
Brief description of the drawings
Fig. 1 is decomposition texture schematic diagram of the invention.
Fig. 2 for the present invention in Grating Film part-structure schematic diagram；
Fig. 3 for the present invention in optically focused Lenticular screen plate part-structure schematic diagram；
Fig. 4 for the present invention in liquid crystal row photoswitch plate part-structure schematic diagram；
Fig. 5 is the part-structure schematic diagram for collimating Lenticular screen plate in the present invention；
Fig. 6 is the backlight and the operation principle schematic diagram of Grating Film in the present invention；
Fig. 7 is the first grating face in the present invention, the operation principle schematic diagram in switch element and the second grating face；
In figure：1. framework, 2. light guide plates, 3. Grating Films, 31. grating membrane planes, 32. film grating faces, 4. optically focused post lens
Original screen panel, 41. first planes, the 42, first grating face, 5. liquid crystal row photoswitch plates, 51. switch elements, 6. collimation post lens lights
Screen, 61. second planes, the 62, second grating face, 7. liquid crystal 2D image display panels, 8. white light LEDs lamp bars, 9. control circuits,
A. the first sub switch unit, the second sub switchs of b. unit, the sub switch units of c. the 3rd.
Embodiment
In order to which technical scheme is explained further, the present invention is explained in detail below by specific embodiment
State.
A kind of new free 3D displays without crosstalk and without resolution loss as shown in Figure 1, with framework 1, backlight
Source, Grating Film 3, optically focused Lenticular screen plate 4, liquid crystal row photoswitch plate 5, collimation Lenticular screen plate 6, liquid crystal 2D images are shown
Panel 7 and the control circuit 9 for controlling liquid crystal row photoswitch plate 5, liquid crystal row photoswitch plate 5 carry out electricity with control circuit 9
Connection, the backlight, Grating Film 3, optically focused Lenticular screen plate 4, liquid crystal row photoswitch plate 5, collimation Lenticular screen plate 6,
The plate of liquid crystal 2D image display panels 7 is sequentially arranged in framework 1 from inside to outside.
Framework 1 is the framework 1 with black floor, it is preferred that the black floor surface is mat surface；
The backlight includes light guide plate 2 and is arranged on the white light LEDs lamp bar 8 of the both sides of light guide plate 2, and light guide plate 2 is two sides
It is the high transparency plate of smooth flat.
As depicted in figs. 1 and 2, it is preferred that Grating Film 3 is made up of high transparency thin polymer film, the one side of Grating Film 3 is light
Sliding plane grating membrane plane 31, another side is provided with the film grating face 32 of some triangular prism shape gratings strips, each three
Prism-shaped gratings strips are a raster unit of Grating Film 3, and the cross section of above-mentioned triangular prism shape gratings strips is triangle, some
The raster unit of Grating Film 3 is vertically arranged and close-packed arrays are arranged on film grating face 32, and grating membrane plane 31 is seamlessly
It is fitted tightly on light guide plate 2, film grating face 32 is towards optically focused Lenticular screen plate 4.
As shown in figures 1 and 3, it is preferred that optically focused Lenticular screen plate 4 is made up of the acrylic board of high transparency, optically focused post
The one side of lens light screen 4 is the first smooth plane 41, and another side is provided with the first of some semi-cylindrical gratings strips
Grating face 42, each semi-cylindrical gratings strips are a raster unit of optically focused Lenticular screen plate 4, above-mentioned semi-cylindrical
The cross section of gratings strips is semicircle, and the raster unit of some optically focused Lenticular screen plates 4 is vertically arranged and close-packed arrays are set
Put on the first grating face 42, the first grating face 42 is towards Grating Film 3.
As shown in figure 4, liquid crystal row photoswitch plate 5 is the liquid crystal light with some switch elements 51 vertically set
Screen, the liquid crystal surface of liquid crystal row photoswitch plate 5 is arranged on the focal plane of optically focused Lenticular screen plate 4, and switch element 51 has
3 wide sub switch units that horizontal Tile is set, above-mentioned 3 sub- switch elements are respectively from left to right the first sub switch list
First a, the second sub switch unit b and the 3rd sub switch unit c, above-mentioned 3 sub- switch elements are controlled by control circuit 9 respectively
System；
As shown in Figure 1 and Figure 5, it is preferred that collimation Lenticular screen plate 6 is high transparency acrylic board, collimates post lens light
The one side of screen 6 is the second smooth plane 61, and another side is provided with the second grating of the gratings strips of some semi-cylindricals
Face 62, each semi-cylindrical gratings strips are a raster unit for collimating Lenticular screen plate 6, above-mentioned semi-cylindrical grating
The cross section of bar is semicircle, and the raster unit of some collimation Lenticular screen plates 6 is vertically arranged and close-packed arrays are arranged on
On second grating face 62, the second grating face 62 dorsad liquid crystal row photoswitch plate 5.
A pair of the raster unit of Grating Film 3, the raster unit of optically focused Lenticular screen plate 4 and above-mentioned sub switch unit 1
Should, the raster unit of raster unit 3 optically focused Lenticular screen plates of correspondence of every 1 collimation Lenticular screen plate.
The free 3D displays that the present invention is expanded on further realize that the operation principle without crosstalk and without resolution loss is as follows：
Refering to Fig. 1, Fig. 2 and Fig. 6, the smooth flat 31 of Grating Film 3 is fitted tightly on light guide plate 2, white light LEDs lamp bar 8
The light sent passes through the refraction and reflection of light guide plate 2, into film grating face 32, is changed into after being reflected through film grating face 32 close to vertical
The straight light in the surface of light guide plate 2 is projected, and forms the quasi-parallel light output of angle of divergence very little；Above-mentioned quasi-parallel light passes through the first light
The refraction of grid face 42 is converged on the switch element 51 of liquid crystal row photoswitch plate 5, referring to Fig. 7, when display screen shows the figure of right view
During picture, control circuit 9 controls the first sub switch unit a to open, and light after the first sub switch unit a by reaching the second grating face
62, turn into collimated light beam orientation after the raster unit refraction through the second grating face 62 and be incident upon on liquid crystal 2D image display panels 7,
The image now shown on liquid crystal 2D image display panels 7 is right view, and above-mentioned collimated light beam passes through liquid crystal 2D picture display faces
Radiation direction is constant after plate 7, is projected directly at right viewpoint position, right eye is seen right view；When display screen shows left view
During image, the first sub switch unit a is closed, and control circuit 9 controls the second sub switch unit b to open, and light is opened by the second son
Reached after closing unit b through the second grating face 62, turning into collimated light beam after the raster unit refraction through the second grating face 62 orients throwing
Penetrate on liquid crystal 2D image display panels 7, now the image on liquid crystal 2D image display panels 7 is left view, above-mentioned collimated light
Beam radiation direction after liquid crystal 2D image display panels 7 is constant, is projected directly at left view point position, left eye is seen left view
Figure；
Raster unit, the raster unit of optically focused Lenticular screen plate 4 and the above-mentioned sub switch unit of Grating Film 3 are corresponded
Structure the uniform light into the backlight is entered each sub switch subelement；Every 1 collimation Lenticular screen
The structure of the raster unit of raster unit 3 optically focused Lenticular screen plates of correspondence of plate makes from each the first sub switch unit a
Raster unit refraction with the light of the second sub switch unit b outgoing through the second grating face 62, through liquid crystal 2D picture display faces
Plate 7, is finally projected to left view point position and right viewpoint position, forms left and right view.
When display shows 3D rendering, the 3rd sub switch unit c is closed all the time, and Time-sharing control is in the first sub switch unit
A and the second sub switch unit b switch, the picture area of the right viewpoint of the first sub switch unit a correspondences of first group of switch element 51, with
The picture area of the second sub switch unit b correspondence left view points in next group of adjacent switch element 51 of first group of switch element 51, the
3rd sub switch unit c of one group of switch element 51 forms dark image district, the picture area of above-mentioned right viewpoint and the picture of above-mentioned left view point
The intersectional region in area coincides with above-mentioned dark image district, so can't see the horizontal parallax figure of reversed order in above-mentioned intersectional region
Picture, can only see left image or right view image, will not cause and not accommodate dizziness.
When display shows 2D images, the first sub switch unit a, the second sub switch unit b and the 3rd sub switch unit c
It is fully open, any position in front of display is watched 2D images, so, free 3D displays of the invention are that can be achieved
Conversion between 2D and 3D rendering.
When display show 3D rendering when, it would however also be possible to employ the first sub switch unit a close, the second sub switch unit b and
The scheme that 3rd sub switch unit c is opened in turn, can reach same 3D effect.
The divergent beams that the free 3D displays of the present invention send white light LEDs lamp bar 8 imported into grating by light guide plate 2
After film 3, light beam of light source is converted into the quasi-parallel light along the orthogonal direction outgoing of light guide plate 2, then by optically focused Lenticular screen
Plate 4 is converged on liquid crystal row photoswitch plate 5, and liquid crystal row photoswitch plate 5 plays a part of light bar, makes the collimation post of light arrival thereafter
Directionality can be formed after lens light screen 6 and orients projection collimated light beam well, view region horizontal parallax image is eliminated
Light beam overlap phenomenon, it is to avoid horizontal parallax picture crosstalk.
The present invention projects backlight technology using orientation, and horizontal parallax image timesharing is shown, liquid crystal 2D image display panels 7
Display resolution is exactly the resolution ratio of the present invention, resolution ratio free of losses.
Above-described embodiment and accompanying drawing and non-limiting product form of the invention and style, any art it is common
Appropriate change or modification that technical staff is done to it, all should be regarded as not departing from the patent category of the present invention.
Claims (5)
1. a kind of new free 3D displays without crosstalk and without resolution loss, with framework, backlight, liquid crystal row photoswitch
Plate, collimation Lenticular screen plate, liquid crystal 2D image display panels and carried out for liquid crystal row photoswitch plate described in Time-sharing control
The control circuit of switch, the backlight, the liquid crystal row photoswitch plate, the collimation Lenticular screen plate and the liquid crystal 2D
Image display panel is sequentially arranged in the framework from inside to outside, and the backlight includes light guide plate and is arranged on light guide plate two
The white light LEDs lamp bar of side, the grating face of the collimation Lenticular screen plate dorsad the liquid crystal row photoswitch plate, its feature
It is：Also include the grating for making the emergent ray deviation of the backlight for the quasi-parallel light on the orthogonal direction of the light guide plate
Film and the optically focused Lenticular screen plate for converging the quasi-parallel light, the optically focused Lenticular screen plate are arranged on described lead
Between tabula rasa and the liquid crystal row photoswitch plate, the grating of the optically focused Lenticular screen plate is described facing to the light guide plate
Grating Film is closely sticked in the light guide plate towards on the side of the liquid crystal row photoswitch plate, and the grating of the Grating Film is faced
To the optically focused Lenticular screen plate, the liquid crystal surface of the liquid crystal row photoswitch plate is arranged at the optically focused Lenticular screen plate
On focal plane；
The framework is the framework with black floor, and the black floor surface is mat surface；
The light guide plate be two sides be shiny surface flat board；
The Grating Film, the optically focused Lenticular screen plate and the collimation Lenticular screen plate are respectively provided with and vertically set
Raster unit, the liquid crystal row photoswitch plate has the switch element that vertically sets, and the switch element has etc.
3 wide sub- switch elements, 3 sub switch unit horizontals are arranged side by side；
A pair of the raster unit of the Grating Film, the raster unit of the optically focused Lenticular screen plate and the sub switch unit 1
Should, the raster unit of raster unit 3 optically focused Lenticular screen plates of correspondence of every 1 collimation Lenticular screen plate.
2. a kind of new free 3D displays without crosstalk and without resolution loss as claimed in claim 1, it is characterised in that：
The Grating Film for one side be smooth flat another side be the raster unit structure for being arranged with some triangular prism shapes high transparency gather
Compound film, the smooth flat is brought into close contact on the light guide plate.
3. a kind of new free 3D displays without crosstalk and without resolution loss as claimed in claim 1, it is characterised in that：
The one side of the optically focused Lenticular screen plate is smooth flat, and another side is the light for the raster unit for being arranged with some semi-cylindricals
Screen face.
4. a kind of new free 3D displays without crosstalk and without resolution loss as claimed in claim 1, it is characterised in that：
The one side of the collimation Lenticular screen plate is smooth flat, and another side is the light for the raster unit for being arranged with some semi-cylindricals
Screen face.
5. a kind of new free 3D displays without crosstalk and without resolution loss as claimed in claim 1, it is characterised in that：
The light guide plate, the optically focused Lenticular screen plate and the collimation Lenticular screen plate are high transparency acrylic board.
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| CN108051927A (en) * | 2018-02-07 | 2018-05-18 | 成都工业学院 | A kind of 3D display device |
| CN110068948A (en) * | 2019-04-08 | 2019-07-30 | 成都工业学院 | A kind of display device of variable vision area |
| CN110780453A (en) * | 2019-11-19 | 2020-02-11 | 华侨大学 | Multi-view point full-resolution free stereo display screen |
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| CN108051927A (en) * | 2018-02-07 | 2018-05-18 | 成都工业学院 | A kind of 3D display device |
| CN110068948A (en) * | 2019-04-08 | 2019-07-30 | 成都工业学院 | A kind of display device of variable vision area |
| CN110068948B (en) * | 2019-04-08 | 2024-02-13 | 成都工业学院 | Display device with variable visual area |
| CN110780453A (en) * | 2019-11-19 | 2020-02-11 | 华侨大学 | Multi-view point full-resolution free stereo display screen |
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