CN102331626B - 3 d display device - Google Patents
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- CN102331626B CN102331626B CN201110286526.7A CN201110286526A CN102331626B CN 102331626 B CN102331626 B CN 102331626B CN 201110286526 A CN201110286526 A CN 201110286526A CN 102331626 B CN102331626 B CN 102331626B
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- Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The present invention provides a kind of 3 d display device, including: the display of display disparity map, and the Lenticular screen arranged with a preset pitch with described display；Described Lenticular screen includes multiple post lens, the curvature of each described post lens from lens centre to rims of the lens consecutive variations.The 3 d display device of the present invention has the advantage that picture crosstalk is little.
Description
Technical field
The present invention relates to stereo display technique, particularly relate to a kind of 3 d display device.
Background technology
Sphere Lenticular screen three-dimensional display based on binocular parallax is by flat faced display and is arranged at flat board
Spheric grating on display is constituted, and this three-dimensional display has multiple independent viewpoint, in different viewpoints
Upper it is observed that different picture.The display content of three-dimensional display comes from from multiple directions same field
The image of scape shooting, each viewpoint shows the image that a direction photographs.Ideally, between viewpoint
Being completely self-contained, the display image (i.e. disparity map) between any two viewpoint that beholder sees is nothing
Crosstalk.It practice, this perfect condition is non-existent, there is string in the display image between each viewpoint
Disturbing, this stereo-picture that beholder is seen obscures, and viewing effect is the best.
As it is shown in figure 1, the width of a sphere Lenticular screen 1 in sphere Lenticular screen three-dimensional display
Degree is equal to the width of n the sub-pixel 2 of the colored filter (also known as color membrane substrates) of flat faced display, naked
Eye stereo display is that the backlight of flat faced display is by the two width figures with parallax corresponding respectively for two viewpoints
As being refracted in the right and left eyes of beholder by colored filter and sphere Lenticular screen, wherein 3 is the back of the body
Light source light after the colored filter of flat faced display, this light 3 is incident to sphere Lenticular screen
After 1, obtain light 4, be then directed in beholder's eye, thus allow beholder it can be seen that each viewpoint pair
The image answered, thus form stereoscopic vision.
This sphere Lenticular screen 1 existing is sphere due to surface, and the emergent light 3 of flat faced display
Direction is each to scattering, and therefore, sphere Lenticular screen 1 has spherical aberration for the light of different pore size, right
Having coma, astigmatism etc. in rim ray, these optical aberrations can make the light of piece image after superrefraction
Proceed to another one image-region, form the crosstalk between image, cause stereoscopic vision to be deteriorated, make beholder
The symptoms such as dizziness occur.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of 3 d display device, can reduce this stereo display
The picture crosstalk of device.
For solving above-mentioned technical problem, embodiments of the invention provide a kind of 3 d display device, including: aobvious
Show the display of disparity map, and the Lenticular screen arranged with described display with a preset pitch；
Described Lenticular screen includes multiple post lens, the curvature of each post lens from lens centre to lens limit
Edge consecutive variations.
Wherein, the display screen of described display shows described disparity map according to a predetermined period interpolation arrangement.
Wherein, the plurality of post lens are arranged to a grating array according to default pitch.
Wherein, the disparity map of the corresponding described predetermined period of each post lens in described grating array.
Wherein, described disparity map includes: left and right two width have the image of parallax.
Wherein, described preset pitch is the described lens centre post lens to the continual curvature change of rims of the lens
The focal length of lens.
Wherein, described lens centre to rims of the lens continual curvature change post lens face, surface type by with
Lower formula determines:
Wherein, z is lens surface rise, and c is the curvature that rims of the lens is arrived in lens centre, and r is long with lens
Degree unit is the radial coordinate of unit, and k is circular cone coefficient, α1-α8For face, surface type coefficient.
Wherein, there is between the display screen of described Lenticular screen and described display a transparent medium, described
The thickness of transparent medium is equal to described preset pitch.
Wherein, described Lenticular screen is made up of liquid crystal material.
Wherein, the surface of described Lenticular screen has UV glue-line.
Having the beneficial effect that of the technique scheme of the present invention:
In such scheme, by using lens centre to the post lens forming of the continual curvature change of rims of the lens
Grating, the image with parallax is refracted to respectively the right and left eyes of beholder, can preferably optimize macropore
The aberration of footpath peripheral field, such that it is able to reduce the aberration of display all angles scattered light, and then reduces vertical
The crosstalk of image during body display.
Accompanying drawing explanation
Fig. 1 is the grating partial schematic diagram of existing sphere Lenticular screen three-dimensional display；
Fig. 2 is the grating partial schematic diagram of the 3 d display device of the present invention；
Fig. 3 be light gate part shown in Fig. 2 implement structural representation.
Detailed description of the invention
For making the technical problem to be solved in the present invention, technical scheme and advantage clearer, below in conjunction with attached
Figure and specific embodiment are described in detail.
As in figure 2 it is shown, one embodiment of the invention, 3 d display device, including: display parallax Figure 101
Display 10, and the Lenticular screen 11 arranged with a preset pitch with display 10；Post lens light
Grid 11 include multiple post lens, the curvature of each post lens from lens centre to rims of the lens consecutive variations.
Wherein, this each lens centre is commonly referred to as to the lens of the continual curvature change of rims of the lens at optical field
For non-spherical lens, therefore, above-mentioned Lenticular screen 11 can be referred to as aspheric design grating 11；
This lens centre can be by below equation to face, the surface type of the post lens of the continual curvature change of rims of the lens
Determine:
Wherein, z is lens surface rise (height z as shown in Figure 3), and c is that lens limit is arrived in lens centre
The curvature of edge, r is the radial coordinate (r as shown in Figure 3) in units of length of lens unit, and k is circle
Cone coefficient, α1-α8For face, surface type coefficient.Can be obtained by coupling experiment, this aspheric design
Surface when being hyperbola, the value of circular cone coefficient k is more than 1；The surface of this aspheric design is parabolically
Time, the value of circular cone coefficient k is 1；When the surface of this aspheric design is ellipse, the value of circular cone coefficient k is
Between 0 to 1.
Again as in figure 2 it is shown, in the display 10 of above-mentioned 3 d display device, this parallax Figure 101 is in display
According to a predetermined period interpolation arrangement on the display screen of device 10, as parallax Figure 101 includes left figure L, right figure
R two width has the image of parallax, and in this current predetermined period, this left figure L, right figure R two width have
The graphical arrangement of parallax is together；In next predetermined period, left figure L, right figure R two width have parallax
Graphical arrangement is together；So formed left and right, left and right on the display screen of display 10 ... row
Row image.
It addition, above-mentioned multiple lens centre is to post lens (the i.e. present invention of the continual curvature change of rims of the lens
Embodiment in aspheric design) be arranged to a grating array, i.e. aspheric surface post according to default pitch
Lenticulation；
Arrangement image on the display screen of aforementioned display device 10 with the relation that arranges of this grating array is: this light
The disparity map of the corresponding above-mentioned predetermined period of each post lens in grid array；
As in figure 2 it is shown, the back light of display 10 through colored filter (shown in FIG as display
The display screen of device) the left figure L sent, right figure R two width image light through aspheric design grating
Left figure L and right figure R is refracted to the viewing at distance aspheric design grating 11h by the refraction of 11 respectively
In region, this viewing areas includes: the viewing areas L and the viewing areas R of right figure R of left figure L,
Figure represents by diagonal line hatches.
The scattering of just all angles that display 10 sends, choose the left figure L in each predetermined period,
Three chief rays of right figure R are analyzed, and light a, the left figure L at left figure L edge as depicted is with right
The light c at the edge of the light b and right figure R of the intersection of figure R；On display screen in all predetermined period
Left figure L map to viewing areas by the aspheric design grating 11 in embodiments of the invention, institute
Right figure R is had also to map to viewing areas；
Owing to the aberration of this aspheric design grating is little, so left figure L, right figure R on display screen pass through
When this aspheric design grating maps in viewing areas, all of left figure L all map to as in figure tiltedly
The left viewing areas L of line shadow representation, all of right figure R all map to such as the right side of figure bend shadow representation
Viewing areas R；Map to viewing areas R or right figure R almost without left figure L and map to viewing areas
The phenomenon of L, forms above-mentioned left figure L, right figure R does not has the viewing areas of crosstalk；
But the light of other angle and direction also can reflect via aspheric Lenticular screen, say, that
The point of other visual field and the light of other angle, according to-20 ° of viewing visual angle to the 20 ° choosing of general display device
Being optimized with aspheric design grating 11, the aberration being somebody's turn to do all light in-20 ° to 20 ° visual angles makes
Relative sphere Lenticular screen make moderate progress, thus reduce the crosstalk of bore hole stereoscopic display device.
In the above embodiment of the present invention, saturating with the aspheric surface post that display 10 is arranged with a preset pitch
Mirror grating 11 is to focal length of lens f that preset pitch is this aspheric design grating 11 of this display 10.
Distance f between two dotted lines as shown in Figure 2.
As it is shown on figure 3, in another embodiment of the invention, when this 3 d display device implements, on
State that to have one between Lenticular screen 11 (i.e. aspheric design grating) and the display screen of display 10 saturating
Bright medium 12, the thickness of this transparent medium 12 is equal to above-mentioned preset pitch f, thus limit display 10 with
Distance between Lenticular screen 11 is preset pitch f.The refractive index of this transparent medium 12 is preferably 1.515,
This transparent medium 12 can be such as glass；Above-mentioned Lenticular screen 11 (i.e. aspheric design grating) is
Being made by according to the liquid crystal material of certain predetermined direction orientation, the refractive index of this liquid crystal material is preferably
1.65；Other light transmissive material can certainly be selected to make.Wherein, the part indicated by 13 in figure is
The surface curve of the aspheric design grating 11 in embodiments of the invention.
Further, the surface of above-mentioned Lenticular screen 11 (i.e. aspheric design grating) has UV
Glue-line 14, it is preferred that the structure of this UV glue-line 14 groove type as illustrated in the drawing, this groove type
UV glue-line 14 is filled above-mentioned liquid crystal material, thus it is saturating to form the aspheric surface post being made up of this liquid crystal material
Mirror grating 11, the refractive index of this UV glue-line 14 is preferably 1.52；UV glue is to pass through ultraviolet light irradiation
One class of solidification is gluing；Direction indicated by arrow 15 shown in Fig. 3 is view direction.
The implementing of above-described embodiment be described below as a example by concrete display:
If with the point of the display screen of display away from (point is away from being the distance between adjacent two pixels) being
0.1695mm, viewing distance 45cm, the pitch of design aspheric design grating 11 is 0.248mm.
The light that any point of display 10 sends is through the transparent medium 12 that refractive index is 1.515, and passes through to be somebody's turn to do
Transparent medium 12 is injected and is equal to, by refractive index, the aspheric design grating 11 that the liquid crystal of 1.65 is made, then
Being refracted into refractive index is 1.52UV glue-line 14；Beholder is entered finally by the air layer that refractive index is 1
Eyes.
In the present embodiment, the optical parametric of aspheric design can be: visual field: ± 10 °；R=0.183085
=1/c；Circular cone coefficient k=-1.0002；Asphericity coefficient only selects quadravalence factor alpha4=3；This aspheric surface post
Lenticulation 11 well controls optical aberration；Wherein, under 0 visual field, the minimum 5um of stigma of pixel,
The stigma of ± 10 ° is within 11.6um, and the stigma of sphere Lenticular screen is the most all at more than 10um；
Visible, the aspheric design grating 11 used in embodiments of the invention makes stigma reduce one
The order of magnitude, say, that utilize the aspheric design grating 11 in embodiments of the invention to make by picture
The amplification of the luminous point of element reduces, and the most largely decreases left image and maps to right viewing area
The probability in territory, the most largely decreases right image and maps to the probability of left viewing areas, therefore, just subtract
Lack the crosstalk between left and right tool anaglyph；
Preferably, this aspheric design grating 11 is placed in 1.88mm distance before display screen, shape
Become three-dimensional display, then at viewing distance, transverse shifting can watch normal stereoeffect, and therefrom
Between become larger to angle of inclination, both sides, crosstalk can be more much smaller than the sphere Lenticular screen of same pitch, i.e.
Apply this aspheric design grating 11 can improve the crosstalk of stereo display peripheral field.
The above is the preferred embodiment of the present invention, it is noted that for the common skill of the art
For art personnel, on the premise of without departing from principle of the present invention, it is also possible to make some improvements and modifications,
These improvements and modifications also should be regarded as protection scope of the present invention.
Claims (5)
1. a 3 d display device, including: the display of display disparity map, and the Lenticular screen arranged with a preset pitch with described display；It is characterized in that,
Described Lenticular screen includes multiple post lens, the curvature of each post lens from lens centre to rims of the lens consecutive variations；Showing described disparity map according to a predetermined period interpolation arrangement on the display screen of described display, the plurality of post lens are arranged to a grating array according to default pitch；Having a transparent medium between the display screen of described Lenticular screen and described display, the thickness of described transparent medium is equal to described preset pitch, and the focal length of lens that described preset pitch is aspheric Lenticular screen；Described lens centre is determined to face, the surface type of the post lens of the continual curvature change of rims of the lens by below equation:
Wherein, z is lens surface rise, and c is the curvature that rims of the lens is arrived in lens centre, and r is the radial coordinate in units of length of lens unit, and k is circular cone coefficient, α1-α8For face, surface type coefficient, wherein α4=3；
The refractive index of described transparent medium is 1.515；The refractive index of described Lenticular screen is 1.65；
Described Lenticular screen is placed in 1.88mm distance before described display screen.
3 d display device the most according to claim 1, it is characterised in that the disparity map of the corresponding described predetermined period of each post lens in described grating array.
3 d display device the most according to claim 1 and 2, it is characterised in that described disparity map includes: left and right two width have the image of parallax.
3 d display device the most according to claim 1, it is characterised in that described Lenticular screen is made up of liquid crystal material.
3 d display device the most according to claim 4, it is characterised in that the surface of described Lenticular screen has UV glue-line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110286526.7A CN102331626B (en) | 2011-09-23 | 2011-09-23 | 3 d display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110286526.7A CN102331626B (en) | 2011-09-23 | 2011-09-23 | 3 d display device |
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| Publication Number | Publication Date |
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| CN102331626A CN102331626A (en) | 2012-01-25 |
| CN102331626B true CN102331626B (en) | 2016-08-17 |
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| CN201110286526.7A Expired - Fee Related CN102331626B (en) | 2011-09-23 | 2011-09-23 | 3 d display device |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103412359B (en) | 2013-08-19 | 2015-04-29 | 京东方科技集团股份有限公司 | Optical grating lens, lens type optical grating and display device |
| CN109343229B (en) * | 2018-12-06 | 2023-10-13 | 成都工业学院 | Stereoscopic display device for far vision |
| CN109725430B (en) * | 2019-03-06 | 2023-04-07 | 成都工业学院 | Virtual focusing mixed imaging stereo display device |
| CN113985623B (en) * | 2021-09-22 | 2023-06-02 | 北京邮电大学 | Three-dimensional light field display system for evenly distributing viewpoints |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08286148A (en) * | 1995-04-18 | 1996-11-01 | Toppan Printing Co Ltd | Lenticular display |
| CN1726430A (en) * | 2002-12-13 | 2006-01-25 | 翰兹-利索兹切科专利管理有限公司及两合公司 | Device for recording and device for reproducing three-dimensional items of image information of an object |
| WO2011034219A1 (en) * | 2009-09-18 | 2011-03-24 | Sharp Kabushiki Kaisha | Multiple view display |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2474424A3 (en) * | 2003-11-21 | 2014-01-08 | Visual Physics, LLC | Micro-optic security and image presentation system |
| GB2457691A (en) * | 2008-02-21 | 2009-08-26 | Sharp Kk | Display with regions simultaneously operable in different viewing modes |
| CN101968595B (en) * | 2010-10-13 | 2013-12-25 | 深圳市华星光电技术有限公司 | 2D/3D switching liquid crystal lens assembly and display device |
-
2011
- 2011-09-23 CN CN201110286526.7A patent/CN102331626B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08286148A (en) * | 1995-04-18 | 1996-11-01 | Toppan Printing Co Ltd | Lenticular display |
| CN1726430A (en) * | 2002-12-13 | 2006-01-25 | 翰兹-利索兹切科专利管理有限公司及两合公司 | Device for recording and device for reproducing three-dimensional items of image information of an object |
| WO2011034219A1 (en) * | 2009-09-18 | 2011-03-24 | Sharp Kabushiki Kaisha | Multiple view display |
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Effective date of registration: 20180727 Address after: 518054 Room 201, building A, 1 front Bay Road, Shenzhen Qianhai cooperation zone, Shenzhen, Guangdong Patentee after: SUPERD Co.,Ltd. Address before: 518053 H-1 Tung 101, overseas Chinese town, Nanshan District, Shenzhen, Guangdong. Patentee before: SHENZHEN SUPER PERFECT OPTICS Ltd. |
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