CN207264027U - A kind of new no crosstalk and the free 3D display device without resolution loss - Google Patents
A kind of new no crosstalk and the free 3D display device without resolution loss Download PDFInfo
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- CN207264027U CN207264027U CN201720599874.2U CN201720599874U CN207264027U CN 207264027 U CN207264027 U CN 207264027U CN 201720599874 U CN201720599874 U CN 201720599874U CN 207264027 U CN207264027 U CN 207264027U
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- plate
- lenticular screen
- liquid crystal
- screen plate
- optically focused
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Abstract
The utility model discloses a kind of new no crosstalk and the free 3D display device 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 frame 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 correspond, the raster unit of every 1 collimation Lenticular screen plate corresponds to the raster unit of 3 optically focused Lenticular screen plates, the utility model has the following advantages that：Reduce diverging, serious crosstalk can be formed into view region at the same time by avoiding multiple angle light, control sub switch unit switch by control circuit, the horizontal parallax image of reversed order is can't see in intersectional region, it will not cause and not accommodate dizziness, while reduce display cost.
Description
Technical field
The utility model is suitable for stereo display technique field, and in particular to a kind of new no crosstalk and without resolution loss
Free 3D display device.
Background technology
Bore hole 3D display technology makes beholder pluck 3D glasses, improves viewing comfort.Light based on binocular parallax
The free 3D display device of grating is a kind of important 3D display device, according to the difference of grating material, can be divided into slit grating and cylindrical mirror
2 kinds of grating bore hole 3D display, the free 3D display utensil of Lenticular screen have brightness high, and viewing is excellent comfort to be shown in slit grating
The advantages that device.But Lenticular screen, when being divided to composograph, some viewpoint comes from corresponding 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 since image pixel is divided into the sub-pixel of several viewpoints, resolution loss
It is very big, the picture quality of 3D display device is have impact on, beholder is reduced and watches comfort level, for cross-interference issue, people have pointed out
Various methods, such as by correcting composograph sub-pixel luminance values and side that the picture crosstalk between adjacent viewpoint eliminates
Method, reduces crosstalk by analyzing the relation of image sub-pixel position and lens array, 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 exists sternly
Weight defect, by taking 5 viewpoint schemes as an example, one is backlight is the very big uniform area light source of the angle of divergence, multiple angles of different pixels
Degree light can enter view region at the same time, 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 adjacent cells as the intersectional region horizontal parallax image in area it is suitable
Sequence overturns, and when viewing does not have stereoeffect not only, can also cause and seriously not accommodate 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 realize, or the manufacture that will greatly improve display
Cost.
Utility model content
In view of this, the purpose of this utility model is to provide one kind without crosstalk, brightness is higher and lower-cost one kind
New no crosstalk and the free 3D display device without resolution loss.
In order to achieve the above objectives, the solution of the utility model is：
A kind of new no crosstalk and the free 3D display device without resolution loss, there is frame, backlight, liquid crystal row light to open
Close plate, collimation Lenticular screen plate, liquid crystal 2D image display panels and for liquid crystal row photoswitch plate described in Time-sharing control into
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 frame 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, backwards to the liquid crystal row photoswitch plate, it is special in the grating face of the collimation Lenticular screen plate
Sign is：Further 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 frame is the frame with black floor, and the black floor surface is rough surface；
The light guide plate is the tablet that two sides is shiny surface；
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 have 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 corresponds to, and the raster unit of every 1 collimation Lenticular screen plate corresponds to the grating list of 3 optically focused Lenticular screen plates
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 are fitted closely 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.
With the above structure, a kind of new no crosstalk of the utility model and the free 3D display utensil without resolution loss
There is following 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.In this way, 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 when showing brightness during 3D rendering and showing 2D images
Brightness it is basically identical, in addition, the sub switch unit of serial number 1 corresponds to the picture area of right viewpoint, 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, therefore 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 device of the utility model without crosstalk and without resolution loss, uses frame as with black bottom
The frame of plate, the white bottom plate used different from common LCD backlight, black floor surface Non-smooth surface for rough surface
Face, the backlight for so making the utility model will not be the light sources that uniform shines；The light guide plate is smooth for two sides
The high transparency acrylic board of plane, the light guide plate with site used different from common LCD backlight, so makes the utility model
The emergent ray of backlight can control；The light that backlight is sent after Grating Film along the orthogonal direction deviation of light guide plate,
As the emergent ray for approaching light guide plate orthogonal direction, backlight light is concentrated and is no longer dissipated, avoid uniform area light source
The problem of multiple angle light of different pixels can form serious crosstalk into view region at the same time.
3rd, the utility model is when display screen shows left view image and right view image, in the sub switch list of photopic vision point
Member opens and closes in turn, and refreshing frequency is changed into original 2 times, and the image refreshing speed of liquid crystal 2D image display panels need to only carry
1 times high, general LCD monitor achieves that, can reduce manufacture cost.
Brief description of the drawings
Fig. 1 is the decomposition texture schematic diagram of the utility model.
Fig. 2 is the part-structure schematic diagram of the Grating Film in the utility model；
Fig. 3 is the part-structure schematic diagram of the optically focused Lenticular screen plate in the utility model；
Fig. 4 is the part-structure schematic diagram of the liquid crystal row photoswitch plate in the utility model；
Fig. 5 is the part-structure schematic diagram of the collimation Lenticular screen plate in the utility model；
Fig. 6 is the operation principle schematic diagram of the backlight and Grating Film in the utility model；
Fig. 7 is the first grating face in the utility model, the operation principle schematic diagram in switch element and the second grating face；
In figure：1. frame, 2. light guide plates, 3. Grating Films, 31. grating membrane planes, 32. film grating faces, 4. optically focused cylindrical lens
Original screen panel, 41. first planes, the 42, first grating face, 5. liquid crystal row photoswitch plates, 51. switch elements, 6. collimation cylindrical lens light
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 3rd sub switch units of c..
Embodiment
In order to which the technical solution of the utility model is explained further, below by specific embodiment come to the utility model into
Row elaborates.
A kind of new no crosstalk as shown in Figure 1 and the free 3D display device without resolution loss, have frame 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 image displays
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,
7 plate of liquid crystal 2D image display panels is sequentially arranged in frame 1 from inside to outside.
Frame 1 is the frame 1 with black floor, it is preferred that the black floor surface is rough surface；
The backlight includes light guide plate 2 and the white light LEDs lamp bar 8 for being arranged on 2 both sides of light guide plate, 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 of high transparency thin polymer film, and the one side of Grating Film 3 is light
Sliding plane grating membrane plane 31, another side are 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 of the acrylic board of high transparency, optically focused column
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 are 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 cylindrical 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 to collimate a raster unit of 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 is backwards to liquid crystal row photoswitch plate 5.
The raster unit of Grating Film 3, the raster unit of optically focused Lenticular screen plate 4 and above-mentioned sub switch unit one are a pair of
Should, the raster unit of every 1 collimation Lenticular screen plate corresponds to the raster unit of 3 optically focused Lenticular screen plates.
Operation principle of the free 3D display device realization of the utility model without crosstalk and without resolution loss is expanded on further
It 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 film grating face 32 reflects close to vertical
Directly the light in 2 surface of light guide plate projects, 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, become collimated light beam orientation after the raster unit refraction in the second grating face 62 and be incident upon on liquid crystal 2D image display panels 7,
The image shown at this time 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, become collimated light beam orientation after the raster unit refraction in the second grating face 62 and throw
Penetrate on liquid crystal 2D image display panels 7, the image on liquid crystal 2D image display panels 7 is left view at this time, 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；
The raster unit of Grating Film 3, the raster unit of optically focused Lenticular screen plate 4 and above-mentioned sub switch unit correspond
Structure the uniform light into the backlight is entered each sub switch subelement；Every 1 collimation Lenticular screen
The structure that the raster unit of plate corresponds to the raster unit of 3 optically focused Lenticular screen plates makes from each the first sub switch unit a
Raster unit refraction of the light being emitted with the second sub switch unit b 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
The switch of a and the second sub switch unit b, the first sub switch unit a of first group of switch element 51 correspond to the picture area of right viewpoint, with
The second sub switch unit b in next group of adjacent switch element 51 of first group of switch element 51 corresponds to the picture area of left view point, the
3rd sub switch unit c of one group of switch element 51 forms dark image district, above-mentioned right viewpoint as area 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, in this way, the free 3D display device of the utility model
Realize the conversion between 2D and 3D rendering.
When display show 3D rendering when, can also use 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 display device of the utility model sends white light LEDs lamp bar 8 are imported into by light guide plate 2
After Grating 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 cylindrical lens
Original screen panel 4 is converged on liquid crystal row photoswitch plate 5, and liquid crystal row photoswitch plate 5 plays the role of light bar, makes light arrival thereafter accurate
Directionality can be formed after right cylinder lens light screen 6 and orients projection collimated light beam well, eliminate view region horizontal parallax
The light beam of image overlaps phenomenon, avoids horizontal parallax picture crosstalk.
The utility model projects backlight technology using orientation, and horizontal parallax image timesharing is shown, liquid crystal 2D picture display faces
The display resolution of plate 7 is exactly the resolution ratio of the utility model, resolution ratio free of losses.
The product form and style of above-described embodiment and attached drawing and non-limiting the utility model, any technical field
The appropriate change or modification that those of ordinary skill does it, all should be regarded as not departing from the patent category of the utility model.
Claims (5)
1. a kind of new no crosstalk and the free 3D display device without resolution loss, have frame, backlight, liquid crystal row photoswitch
Plate, collimate 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 frame 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 exist backwards to the liquid crystal row photoswitch plate, its feature
In：Further include the Grating Film for making the emergent ray deviation of the backlight for the quasi-parallel light on the orthogonal direction of the light guide plate
And for converging the optically focused Lenticular screen plate of the quasi-parallel light, the optically focused Lenticular screen plate is arranged on the leaded light
Between plate and the liquid crystal row photoswitch plate, the grating of the optically focused Lenticular screen plate is facing to the light guide plate, the light
Grid film is closely sticked in the light guide plate towards on the side of the liquid crystal row photoswitch plate, the grating of the Grating Film facing to
The optically focused Lenticular screen plate, the liquid crystal surface of the liquid crystal row photoswitch plate are arranged at Jiao of the optically focused Lenticular screen plate
In plane；
The frame is the frame with black floor, and the black floor surface is rough surface；
The light guide plate is the tablet that two sides is shiny surface；
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；
The raster unit of the Grating Film, the raster unit of the optically focused Lenticular screen plate and the sub switch unit one are a pair of
Should, the raster unit of every 1 collimation Lenticular screen plate corresponds to the raster unit of 3 optically focused Lenticular screen plates.
2. a kind of new no crosstalk as claimed in claim 1 and the free 3D display device without resolution loss, its feature exist
In：The Grating Film is that one side is the high transparency that smooth flat another side is the raster unit structure for being arranged with some triangular prism shapes
Thin polymer film, the smooth flat are fitted closely on the light guide plate.
3. a kind of new no crosstalk as claimed in claim 1 and the free 3D display device without resolution loss, 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 no crosstalk as claimed in claim 1 and the free 3D display device without resolution loss, 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 no crosstalk as claimed in claim 1 and the free 3D display device without resolution loss, 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720599874.2U CN207264027U (en) | 2017-05-26 | 2017-05-26 | A kind of new no crosstalk and the free 3D display device without resolution loss |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720599874.2U CN207264027U (en) | 2017-05-26 | 2017-05-26 | A kind of new no crosstalk and the free 3D display device without resolution loss |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207264027U true CN207264027U (en) | 2018-04-20 |
Family
ID=61915208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720599874.2U Withdrawn - After Issue CN207264027U (en) | 2017-05-26 | 2017-05-26 | A kind of new no crosstalk and the free 3D display device without resolution loss |
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| Country | Link |
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| CN (1) | CN207264027U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107179612A (en) * | 2017-05-26 | 2017-09-19 | 华侨大学 | A kind of new free 3D displays without crosstalk and without resolution loss |
-
2017
- 2017-05-26 CN CN201720599874.2U patent/CN207264027U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107179612A (en) * | 2017-05-26 | 2017-09-19 | 华侨大学 | A kind of new free 3D displays without crosstalk and without resolution loss |
| CN107179612B (en) * | 2017-05-26 | 2023-06-30 | 华侨大学 | Novel free 3D display without crosstalk and resolution loss |
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