CN107203049A - Stereoscopic and 3 d display device - Google Patents
Stereoscopic and 3 d display device Download PDFInfo
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- CN107203049A CN107203049A CN201610156527.2A CN201610156527A CN107203049A CN 107203049 A CN107203049 A CN 107203049A CN 201610156527 A CN201610156527 A CN 201610156527A CN 107203049 A CN107203049 A CN 107203049A
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- beam splitter
- stereoscopic
- convex
- convex portion
- display device
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Classifications
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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 present invention provides a kind of 3 d display device and stereoscopic, and stereoscopic is used for display panel, and the stereoscopic includes：Beam splitter array, including multiple beam splitters, multiple beam splitters are arranged in the first direction, each beam splitter extends in a second direction, the first direction and two direction out of plumb, wherein, each beam splitter has the non-linear shape extended along the second direction, and the adjacent beam splitter connects.Stereoscopic and 3 d display device that the present invention is provided, it can reduce the moire fringes occurred in stereoscopic display.
Description
Technical field
The present invention relates to display field, more particularly to a kind of stereoscopic and 3 d display device.
Background technology
Existing stereo display technique is divided into spectacle and bore hole formula.Eyeglass stereoscopic Display Technique is utilized
Aberration formula or polarization-type three-dimensional Display Technique show 3D rendering.But because user can only pass through glasses
To watch the 3D rendering that eyeglass stereoscopic Display Technique is shown, therefore, eyeglass stereoscopic Display Technique
It is only applicable to fixed occasion, such as domestic TV, cinema screening.So see, spectacle is stood
Body Display Technique is due to its hardware limitation, it is impossible to user is watched 3D rendering whenever and wherever possible.Due to
The defect of eyeglass stereoscopic Display Technique, bore hole formula stereo display technique turns into further research side
To.
Existing bore hole formula stereo display technique by the way that lens pillar is arranged on display panel so that
Anaglyph on display panel projects the left eye and right eye to user, the left eye and right eye of user respectively
See different images, and then watch 3D rendering.
However, in actual displayed, due to shading region can be there is between the pixel on display panel,
Under some visual angles, the lens pillar being arranged on display panel can be focused on shading region, make user
See a plurality of blackstreak when watching 3D rendering.These blackstreaks are referred to as moire fringes, and its is right
The stereo display effect of display panel has very big influence.
The content of the invention
The present invention in order to overcome defect that above-mentioned prior art is present there is provided a kind of stereoscopic and
3 d display device, it can reduce the moire fringes occurred in stereoscopic display.
It is described for display panel according to an aspect of the present invention there is provided a kind of stereoscopic
Stereoscopic includes：Beam splitter array, including multiple beam splitters, multiple beam splitters
Arrange in the first direction, each beam splitter extends in a second direction, the first direction and described two
Direction out of plumb, wherein, each beam splitter has the non-linear shape extended along the second direction
Shape, the adjacent beam splitter connects.
Preferably, the non-linear shape includes spaced convex arc section and concave-arc part.
Preferably, the length of the convex arc section and the concave-arc part on the direction vertical with the first direction
Degree is identical.
Preferably, the convex arc section is identical with the curvature of the concave-arc part relevant position.
Preferably, the beam splitter is lens pillar.
Preferably, at least one convex portion is included on the convex surface of the beam splitter.
Preferably, the convex portion extends along the second direction, and with corresponding with the beam splitter
Non-linear shape.
Preferably, 2n convex portion is included on the convex surface of the beam splitter, n is the integer more than or equal to 1,
Center line of the 2n convex portion along the beam splitter is symmetrical, the center line edge of the beam splitter
The second direction extension, and with the non-linear shape corresponding with the beam splitter.
Preferably, section of the convex portion along the first direction be wedge angle, inverted arc angle, it is semicircle or
Half elliptic.
According to another aspect of the present invention, a kind of 3 d display device is also provided, including：Display panel,
Including the multiple pixels arranged in the first direction with third direction；Stereoscopic as described above, if
Put the light emission side in the display panel.
Preferably, each beam splitter covers 2m pixel in a first direction, m for more than etc.
In 1 positive integer.
Preferably, each beam splitter covers 2m pixel in a first direction, m for more than
Positive integer equal to 1, each pixel is made up of multiple pixels.
Preferably, the non-linear shape includes spaced convex arc section and concave-arc part, the convex arc section
One or more pixels are covered each by the third direction with the concave-arc part.
Preferably, the first direction is perpendicular to the third direction.
Preferably, the display panel is AMOLED display panels, and the stereoscopic is direct
On the cover plate for taking shape in the AMOLED display panels.
According to another aspect of the invention, a kind of stereoscopic is also provided, for display panel, its
It is characterised by, the stereoscopic includes：Beam splitter array, including multiple beam splitters, respectively
Include at least one convex portion on the convex surface of the beam splitter.
Preferably, 2n convex portion is included on the convex surface of the beam splitter, n is the integer more than or equal to 1,
Center line of the 2n convex portion along the beam splitter is symmetrical.
Preferably, the section of the convex portion is wedge angle, inverted arc angle, semicircle or half elliptic.
Compared with prior art, the present invention is by setting the inclined non-linear shape of generic pixel orientation
The beam splitter of shape, to alleviate the moire fringes and black and white bar that are produced when display panel shows stereo-picture
Line.The present invention further, sets one or more convex portions to prevent light splitting on the surface of beam splitter
Element focuses on shading region between the pixels, further reduces when display panel shows stereo-picture and produces
Moire fringes and black and white strip.
Brief description of the drawings
Be described in detail its example embodiment by referring to accompanying drawing, above and other feature of the invention and
Advantage will be apparent.
Figure 1A shows the schematic diagram of the 3 d display device of prior art；
Figure 1B shows that the 3 d display device of prior art shows the schematic diagram of 3D rendering；
Fig. 2 shows the schematic diagram of 3 d display device according to embodiments of the present invention；
Fig. 3 shows the sectional view of 3 d display device according to embodiments of the present invention；
Fig. 4 shows the schematic diagram of beam splitter according to embodiments of the present invention；
Fig. 5 shows the schematic diagram of 3 d display device according to another embodiment of the present invention；
Fig. 6 shows the sectional view of beam splitter according to another embodiment of the present invention；
Fig. 7 shows the sectional view of beam splitter according to yet another embodiment of the invention；
Fig. 8 shows the sectional view of the beam splitter according to further embodiment of this invention.
Embodiment
Example embodiment is described more fully with referring now to accompanying drawing.However, example embodiment energy
It is enough to implement in a variety of forms, and it is not understood as limited to embodiment set forth herein；On the contrary, carrying
Cause the present invention fully and completely and the design of example embodiment is comprehensive for these embodiments
Ground conveys to those skilled in the art.Identical reference represents same or similar knot in figure
Structure, thus repetition thereof will be omitted.
Described feature, structure or characteristic can be combined one or more in any suitable manner
In embodiment.In the following description there is provided many details so as to provide the reality to the present invention
Apply fully understanding for mode.However, one of ordinary skill in the art would recognize that, without in specific detail
It is one or more, or using other methods, constituent element, material etc., can also put into practice the present invention's
Technical scheme.In some cases, be not shown in detail or describe known features, material or operate with
Avoid the fuzzy present invention.
The accompanying drawing of the present invention is only used for illustrating relative position relation, and the thickness at some positions, which is employed, lavishes praise on oneself
Plotting mode in order to understand, the thickness in accompanying drawing does not represent the proportionate relationship of actual thickness.
Illustrate 3 d display device of the prior art referring first to Figure 1A and Figure 1B, solid is aobvious
Showing device includes multiple pixels 131,132.Each pixel 131,132 is by 3 not homochromy phases
Adjacent pixel is constituted.By cover the beam splitter 120 of pixel 131,132 make pixel 131 to
Left eye L provides anaglyph V1, and pixel 132 provides anaglyph V2 to right eye R.User
Eyes 140 see different anaglyph V1 and V2 to watch 3D rendering.However, due to
Pixel 131,132 has shading region 140 between the pixels, when showing 3D rendering, point
When optical element 120 focuses on shading region 140, moire fringes will occur and black in shown 3D rendering
Informal voucher line.The spacing of pixel 132 and the interference of beam splitter 120 simultaneously also results in shown
There is the phenomenon of moire fringes and black and white strip in 3D rendering.In order to reduce what is occurred during display 3D rendering
Moire fringes and black and white strip, the present invention provide a kind of 3 d display device and its stereoscopic.Under
Face multiple embodiments with reference to shown in Fig. 2 to Fig. 7 are described the 3 d display device that provides of the present invention and
Its stereoscopic.
Illustrate the 3 d display device that the present invention is provided with reference to Fig. 2 to Fig. 4 first.Wherein, Fig. 2 shows
The schematic diagram of 3 d display device according to embodiments of the present invention is gone out, Fig. 3 is shown according to the present invention
The sectional view of the 3 d display device of embodiment, Fig. 4 shows light splitting member according to embodiments of the present invention
The schematic diagram of part.
As shown in Figures 2 to 4,3 d display device 200 includes display panel 230 and stereoptics is filled
Put 250.
Display panel 230 includes (i.e. first direction) in X direction and Y-direction (i.e. third direction) row
Multiple pixels 211 of row.X-direction is vertical with Y-direction in the present embodiment.Between each pixel 211
It is provided with shading region 240.In the present embodiment, pixel 211 is shown with simple rectangle.It should be understood that
Pixel 211 can also be other arbitrary shapes.In addition, for the sake of clarity, in the present embodiment, respectively
Individual pixel 211 is alignd with Y-direction in X direction.It should be understood that pixel 211 can also be by other arrangement sides
Formula, such as staggered in the X direction, staggered in the Y direction.Those skilled in the art can
With the arrangement change of the change in shape and pixel 211 of realizing more pixels 211, it will not be described here.
Stereoscopic 250 is arranged at the light emission side of display panel 230.Stereoscopic 250 is wrapped
Include beam splitter array.Beam splitter array includes multiple beam splitters 220.Beam splitter 200 is optional
Ground is lens pillar.Multiple beam splitters 220 are arranged in X direction, and along Z-direction (i.e. second direction)
Extension.As shown in Fig. 2 X-direction and Z-direction out of plumb.In other words, Z-direction respectively with X-direction
With the right angle of Y-direction formation non-90 degree.In the present embodiment, a line beam splitter is only shown.One
In a little change case, beam splitter array can include multirow beam splitter.In the present embodiment, Mei Gefen
Optical element 220 has the non-linear shape extended along Z-direction.Adjacent beam splitter 220 connects.
Specifically, in the present embodiment, each beam splitter 220 covers 2m picture in the X direction
Element 211.Wherein, m is the positive integer more than or equal to 1.For example, in fig. 2, each beam splitter
220 cover 2 pixels 211 in the X direction so that two pixels that a beam splitter 220 is covered
211 are respectively intended to show the first anaglyph V1 and the second anaglyph V2 (such as Fig. 3), and then make
The right and left eyes of user 290 are respectively seen different the first anaglyph V1 and the second anaglyph V2 to see
See 3D rendering.In some change case, each beam splitter can also cover 2m in the X direction
Pixel, m is the positive integer more than or equal to 1.Wherein, each pixel is made up of multiple pixels.Example
Such as, each pixel can be made up of red pixel, green pixel and blue pixel.
Specifically, for example can be with as shown in Fig. 2 the non-linear shape that beam splitter 220 has
It is wave-like, including spaced convex arc section 221 and concave-arc part 222.Convex arc section 221 and concave arc
The length of portion 222 in the Y direction is identical.In other words, convex arc section 221 and concave-arc part 222 be in the Y direction
On be covered each by the pixel 211 of identical quantity.For example, in the embodiment shown in Figure 2, each convex arc
Portion 211 covers a pixel 211 in the Y direction, and each concave-arc part 222 covers also one in the Y direction
Individual pixel 211.In other embodiments, convex arc section 221 and concave-arc part 222 in the Y direction can also
Cover multiple pixels 211.Further, the curvature phase of convex arc section 221 and the relevant position of concave-arc part 222
Together.In other words, convex arc section 221 and concave-arc part 222 have in the projection of the plane where display panel 230
Have along the symmetrical shape of Z-direction.It is described symmetrical herein, only refer in shape symmetrical, and in non-location
It is symmetrical.It is appreciated that convex arc section 221 and concave-arc part 222 are in the plane where display panel 230
Projected area is identical.In some change case example, convex arc section 221 and concave-arc part 222 are in display panel 230
The projected area of the plane at place can also be different.
The stereoscopic 250 that the present invention is provided is by multiple beam splitters 220 relative to pixel arrangement
Direction (X-direction and Y-direction) is obliquely installed, while beam splitter 220 is in its bearing of trend (Z side
To) on have non-linear shape, to reduce between beam splitter 220 and pixel 211 (or pixel)
Shading region 240 interference so that beam splitter 220 is difficult to focus on shading region 240, Jin Erhuan
Solution display panel 230 shows the moire fringes and black and white strip produced during 3D rendering.Specifically, this hair
The bright beam splitter 220 by tilting and with non-linear shape reduces eye focus in shading region 240
And slow down the degree of light and shade difference.Meanwhile, such beam splitter 220 can also destroy the spacing of pixel 211
Interference between the spacing of beam splitter 220 and slow down moire fringes phenomenon.
Further, at least one convex portion can also be set on the convex surface of beam splitter 220 of the invention
223.Specifically, each beam splitter 220 is column convex lens, and one side is plane and display
Panel 230 is relative, and another is convex surface sideways.The light of display panel 230 is projected from convex surface.At this
In embodiment, 2n convex portion 223 is included on the convex surface of each beam splitter 220.Wherein, n be more than
Integer equal to 1.For example, as shown in figure 3, being provided with 4 on the convex surface of each beam splitter 220
Convex portion 223.In the case of even number convex portion 223 is provided with beam splitter 220, it is preferable that each
Center line 224 (as shown in Figure 4) of the convex portion 223 along beam splitter 220 is symmetrical.Beam splitter 220
Center line 224 extend along Z-direction, and with the non-linear shape corresponding with beam splitter 220.
Further, as shown in figure 4, convex portion 223 the place plane of display panel 230 be projected as it is continuous,
Extend along Z-direction, with the non-linear shape corresponding with beam splitter 220.More specifically, at this
In embodiment, the section of each convex portion 223 in the X direction is angular shape.
The stereoscopic 250 that the present invention is provided on beam splitter 220 by setting convex portion 223 to make
Obtain beam splitter 220 to be more difficult to focus on shading region 240, further alleviate display panel 230 and show
Show the moire fringes and black and white strip produced during 3D rendering.Specifically, it is arranged on beam splitter 220
Convex portion 223 change display panel 230 light direction, make one eye and can't see shading region 240, meanwhile,
Interference that convex portion 223 is destroyed between the spacing of pixel 211 and the spacing of beam splitter 220 and slow down mole
Line phenomenon.The beam splitter 220 of convex portion 223 and non-linear shape, which coordinates, can further change display panel
230 light direction, the interference between the destruction spacing of pixel 211 and the spacing of beam splitter 220.
In the change case of the present invention, the beam splitter array of stereoscopic is included in X direction
On arrangement, the multiple beam splitters with linearity configuration extended along Z-direction, the convex surface of each beam splitter
Including at least one convex portion.Convex portion can continuously or discontinuously be set on the bearing of trend of beam splitter.It is convex
The convex portion of the beam splitter of the quantity in portion and position and non-linear shape sets similar.In this change case
In, although beam splitter has linearity configuration, the setting of convex portion can also change the light extraction of display panel
Direction, to reduce because human eye sees the interference between shading region or pel spacing and beam splitter spacing
The moire fringes of generation and the phenomenon of black and white line.
Several change case of the present invention are described below by Fig. 5 to Fig. 8.
With reference first to Fig. 5 shows the signal of 3 d display device according to another embodiment of the present invention
Figure.The structure class of 3 d display device 200 shown in 3 d display device 300 and Fig. 2 shown in Fig. 5
Seemingly.3 d display device 300 from unlike 3 d display device 200, each beam splitter 320
Two pixels 310 are covered in the X direction.Each beam splitter 320 covered in X-direction two
Individual pixel 310 is respectively used to show different anaglyphs.Each pixel 310 is by X side
Constituted to two adjacent pixels 311, constituting two pixels 311 of a pixel 310 can borrow
The light of red, green and blueness is sent with a pixel of neighbor pixel.
Fig. 2 and Fig. 5 diagrammatically only show two of the relation between beam splitter and pixel arrangement
Embodiment, those skilled in the art can also realize more change case, will not be described here.
Referring to Fig. 6, Fig. 6 shows the sectional view of beam splitter according to another embodiment of the present invention.
Beam splitter 420 shown in Fig. 6 is similar with the structure of beam splitter 220 shown in Fig. 3.Beam splitter
420 from unlike beam splitter 220, setting two convex portions 423 on the convex surface of beam splitter 420,
Each convex portion 423 is the shape with inverted arc angle.
Further, referring to Fig. 7, Fig. 7 shows beam splitter according to yet another embodiment of the invention
Sectional view.Beam splitter 520 shown in Fig. 7 is similar with the structure of beam splitter 220 shown in Fig. 3.
Beam splitter 520 is from unlike beam splitter 220, setting three on the convex surface of beam splitter 520
Convex portion 423, each convex portion 423 is the shape with half elliptic.It is convex in having a change case
Portion can also have the convex portion 623 set on semicircular in shape, beam splitter 620 as shown in Figure 8.
Above-mentioned Fig. 3, Fig. 6 are only to be shown schematically in the convex portion that is set on beam splitter to Fig. 8
Shape and position, those skilled in the art can realize more change case according to description.For example,
The convex portion position set on beam splitter can be with asymmetric；In another example, set on same beam splitter
The convex portion put can have different shapes；For another example the convex portion setting on different beam splitters can
To differ, etc., it will not be repeated here.Specifically, can the arrangement mode based on pixel,
Pel spacing and the size of shading region set the position of convex portion, and then slow down or eliminate moire fringes
With black and white strip phenomenon.
Compared with prior art, the present invention is by setting the inclined non-linear shape of generic pixel orientation
The beam splitter of shape, to alleviate the moire fringes and black and white bar that are produced when display panel shows stereo-picture
Line.The present invention further, sets one or more convex portions to prevent light splitting on the surface of beam splitter
Element focuses on shading region between the pixels, further reduces when display panel shows stereo-picture and produces
Moire fringes and black and white strip.
The illustrative embodiments of the present invention are particularly shown and described above.It should be understood that this hair
It is bright to be not limited to disclosed embodiment, on the contrary, it is intended to cover included in appended claims
In the range of various modifications and equivalent replacement.
Claims (18)
1. a kind of stereoscopic, for display panel, it is characterised in that the stereoscopic
Including：
Beam splitter array, including multiple beam splitters, multiple beam splitters are arranged in the first direction,
Each beam splitter extends in a second direction, the first direction and two direction out of plumb,
Wherein, each beam splitter has the non-linear shape extended along the second direction, adjacent
The beam splitter connects.
2. stereoscopic as claimed in claim 1, it is characterised in that the non-linear shape bag
Include spaced convex arc section and concave-arc part.
3. stereoscopic as claimed in claim 2, it is characterised in that the convex arc section and described
Length of the concave-arc part on the direction vertical with the first direction is identical.
4. stereoscopic as claimed in claim 3, it is characterised in that the convex arc section and described
The curvature of concave-arc part relevant position is identical.
5. the stereoscopic as described in any one of Claims 1-4, it is characterised in that described point
Optical element is lens pillar.
6. stereoscopic as claimed in claim 5, it is characterised in that the beam splitter it is convex
Include at least one convex portion on face.
7. stereoscopic as claimed in claim 6, it is characterised in that the convex portion is along described
Two directions extend, and with the non-linear shape corresponding with the beam splitter.
8. stereoscopic as claimed in claim 7, it is characterised in that the beam splitter it is convex
Include 2n convex portion on face, n is the integer more than or equal to 1, and the 2n convex portion is first along the light splitting
The center line of part is symmetrical, and the center line of the beam splitter extends along the second direction, and has
The non-linear shape corresponding with the beam splitter.
9. the stereoscopic as described in any one of claim 6 to 8, it is characterised in that described convex
Section of the portion along the first direction is wedge angle, inverted arc angle, semicircle or half elliptic.
10. a kind of 3 d display device, it is characterised in that including：
Display panel, including the multiple pixels arranged in the first direction with third direction；
Stereoscopic as described in any one of claim 1 to 9, is arranged on the display panel
Light emission side.
11. 3 d display device as claimed in claim 10, it is characterised in that each light splitting member
Part covers 2m pixel in a first direction, and m is the positive integer more than or equal to 1.
12. 3 d display device as claimed in claim 10, it is characterised in that each light splitting member
Part covers 2m pixel in a first direction, and m is the positive integer more than or equal to 1, each pixel
It is made up of multiple pixels.
13. 3 d display device as claimed in claim 10, it is characterised in that the non-linear shape
Including spaced convex arc section and concave-arc part, the convex arc section and the concave-arc part are in the third direction
On be covered each by one or more pixels.
14. 3 d display device as claimed in claim 10, it is characterised in that the first direction hangs down
Directly in the third direction.
15. 3 d display device as claimed in claim 10, it is characterised in that the display panel is
AMOLED display panels, the stereoscopic is directly molded on the AMOLED display panels
Cover plate on.
16. a kind of stereoscopic, for display panel, it is characterised in that the stereoptics dress
Put including：
Include at least on beam splitter array, including multiple beam splitters, the convex surface of each beam splitter
One convex portion.
17. stereoscopic as claimed in claim 16, it is characterised in that the beam splitter
Include 2n convex portion on convex surface, n is the integer more than or equal to 1, the 2n convex portion is along the light splitting
The center line of element is symmetrical.
18. stereoscopic as claimed in claim 16, it is characterised in that the section of the convex portion
For wedge angle, inverted arc angle, semicircle or half elliptic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610156527.2A CN107203049A (en) | 2016-03-18 | 2016-03-18 | Stereoscopic and 3 d display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610156527.2A CN107203049A (en) | 2016-03-18 | 2016-03-18 | Stereoscopic and 3 d display device |
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| Publication Number | Publication Date |
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| CN107203049A true CN107203049A (en) | 2017-09-26 |
Family
ID=59903860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610156527.2A Pending CN107203049A (en) | 2016-03-18 | 2016-03-18 | Stereoscopic and 3 d display device |
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| CN203422488U (en) * | 2013-08-26 | 2014-02-05 | 张家港康得新光电材料有限公司 | Cylindrical lens unit, cylindrical lens molding device and stereoscopic display |
| CN104267525A (en) * | 2014-08-18 | 2015-01-07 | 深圳市华星光电技术有限公司 | Stereoscopic display unit and production method thereof |
| CN104297988A (en) * | 2014-10-21 | 2015-01-21 | 合肥鑫晟光电科技有限公司 | Display device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101895777A (en) * | 2010-07-14 | 2010-11-24 | 深圳超多维光电子有限公司 | Three-dimensional display module and stereo display device |
| CN102819054A (en) * | 2012-08-10 | 2012-12-12 | 北京康得新复合材料股份有限公司 | Bright enhancement film and display device |
| CN102879837A (en) * | 2012-08-15 | 2013-01-16 | 郑州恒昊玻璃技术有限公司 | Method for reducing moire fringes of autostereoscopic display with lenticular grating |
| CN102981196A (en) * | 2012-12-11 | 2013-03-20 | 南京中电熊猫液晶显示科技有限公司 | Cylindrical lens grating, grating parallax barrier type stereoscopic display device and parallax barrier |
| CN203422488U (en) * | 2013-08-26 | 2014-02-05 | 张家港康得新光电材料有限公司 | Cylindrical lens unit, cylindrical lens molding device and stereoscopic display |
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