CN208969351U - A kind of naked eye 3D diaphragm - Google Patents
A kind of naked eye 3D diaphragm Download PDFInfo
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- CN208969351U CN208969351U CN201821767311.0U CN201821767311U CN208969351U CN 208969351 U CN208969351 U CN 208969351U CN 201821767311 U CN201821767311 U CN 201821767311U CN 208969351 U CN208969351 U CN 208969351U
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Abstract
The utility model discloses a kind of naked eye 3D diaphragms, belong to the field naked eye 3D, including cylindrical lenses, and the cylindrical lenses include upper glass sheet and prismatic mirror diaphragm, and multiple cylindrical lenses units, the radius of curvature r of the cylindrical lenses unit is arranged in the prismatic mirror diaphragmiIt is gradually become smaller from centre to two sides, wherein i ∈ { 0,1 ..., n } indicates the serial number of cylindrical lenses unit, and 0 indicates center pillar lens unit serial number, and n indicates edge column lens unit serial number；It using the cylindrical lenses of gradual change type, can effectively polymerize the light of diaphragm neighboring area, enhance neighboring area light, the contrast on border of the naked visual effect fruit of 3D be mentioned, and then improve the stereoscopic effect of neighboring area, to improve the visual effect of whole naked eye 3D.
Description
Technical field
The utility model relates to the fields naked eye 3D, and in particular to a kind of naked eye 3D diaphragm.
Background technique
Real world is three-dimensional world, and human eye, which watches the image seen when object, has potential difference, inclined between two images
We term it parallax (disparity/parallax) for difference.Exactly this parallax, allows one to the distance of difference object, and obtains
Obtain three-dimensional sense.According to the difference of parallax value, parallax can be divided into positive parallax (posiTIve parallax), negative parallax again
(negaTIveparallax) and parallax free (zero parallax).When spectators are in viewing, positive parallax makes one to generate object depth
Enter the feeling of screen；Negative parallax makes one to generate the feeling that object is suspended in outside screen；Parallax free is point of positive parallax and negative parallax
Boundary, object are just projected onto a screen, i.e. our zero planes for often saying.The star at night in summer is far from us, Wo Menguan
See star sight be almost it is parallel, at this moment parallax is close to zero, and human eye is difficult to differentiate between the distance of star, thus we feel
Star is same remote apart from us, and an array of stars is seemingly in one plane without three-dimensional sense.
The brain of people is an extremely complex nervous system, and two width for mirroring eyes can be had the figure of parallax by it
Picture, fusion reflection and visual psychology reaction through optic nerve maincenter can generate 3 D stereo feeling.Using this principle,
There are the left images of parallax to show by display two width, give it to right and left eyes respectively, to obtain 3D sense.
The principle of naked eye 3D display is divided generally by the image that grating or lens show display, to make
Human eye receives different images, just realizes 3D display in this way.Slit grating display in front of display panel by placing
One suitable slit of parameter, blocks the content of display, the light for after certain distance, reaching human eye can be by
It separates, eyes receive the image that two width contain parallax.
Cylindrical lenses formula uses identical principle, and the mode only realized has changed lens by slit, lens by pair
Different display contents is refracted to place different in space by the refraction action of light, and the content shown when reaching human eye is divided
It opens, human eye receives the image that two width contain parallax, just produces stereoscopic effect in this way.
The identical cylindrical lenses of structure are provided on current naked eye 3D diaphragm, when which is labelled in display device,
Due to the visual characteristic of human eye, observe that the intermediate light intensity of the display device is most strong, both sides light intensity gradually weakens, although theoretically
Until can all there be a three-dimensional vision area in two sides among screen at viewing distance, but only among screen near several solids
The light intensity of vision area is sufficiently strong, it can be seen that and the light intensity of preferable stereoscopic effect, two sides gradually weakens, and stereoscopic effect becomes unobvious,
Vision area number is few.
Utility model content
The purpose of this utility model is that: a kind of naked eye 3D diaphragm is provided, solve using existing naked eye 3D diaphragm into
When row observation, since cylindrical lens configuration is all the same, causes diaphragm intermediate region light strong and neighboring area light is weak, make periphery
Stereoscopic effect it is unobvious, thus the technical issues of influencing whole stereoscopic effect.
The technical solution adopted in the utility model is as follows:
A kind of naked eye 3D diaphragm, including cylindrical lenses, the cylindrical lenses include upper glass sheet and prismatic mirror diaphragm, described
Multiple cylindrical lenses units, the radius of curvature r of the cylindrical lenses unit is arranged in prismatic mirror diaphragmiGradually become from centre to two sides
Small, wherein i ∈ { 0,1 ..., n } indicates the serial number of cylindrical lenses unit, and 0 indicates center pillar lens unit serial number, and n indicates side
Edge cylindrical lenses unit number.
Further, the radius of curvature r of the edge column lens unitnNot less than the curvature of center pillar lens unit
Radius r080%.
Further, the radius of curvature r of the cylindrical lenses unitiChanging rule are as follows: ri=k1·i+r0, wherein k1It indicates
The radius of curvature r of cylindrical lenses unitiGradual change coefficient, k1< 0, r0Indicate the radius of curvature of center pillar lens unit.
In conclusion by adopting the above-described technical solution, the beneficial effects of the utility model are:
Using the cylindrical lenses of gradual change type, it can effectively polymerize the light of diaphragm neighboring area, make neighboring area light
Enhancing mentions the contrast on border of the naked visual effect fruit of 3D, and then improves the stereoscopic effect of neighboring area, to improve whole naked eye 3D
Visual effect.
Detailed description of the invention
The utility model will illustrate by example and with reference to the appended drawing, in which:
Fig. 1 is the utility model entirety light path schematic diagram；
Fig. 2 is screen center's cylindrical lenses schematic diagram in the utility model；
Fig. 3 is the schematic diagram of edge cylindrical lenses when prismatic mirror thickness is constant in prismatic mirror diaphragm in the utility model；
Detailed description of the invention: the upper glass sheet of 1-, 2- picture element, 3- prismatic mirror diaphragm.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only to explain this
Utility model is not used to limit the utility model, i.e., the described embodiments are only a part of the embodiments of the utility model,
Instead of all the embodiments.The component of the utility model embodiment being usually described and illustrated herein in the accompanying drawings can be with each
Different configurations is planted to arrange and design.
Therefore, requirement is not intended to limit to the detailed description of the embodiments of the present invention provided in the accompanying drawings below
The scope of the utility model of protection, but it is merely representative of the selected embodiment of the utility model.Reality based on the utility model
Apply example, those skilled in the art's every other embodiment obtained without making creative work belongs to
The range of the utility model protection.
It should be noted that the relational terms of term " first " and " second " or the like be used merely to an entity or
Operation is distinguished with another entity or operation, and without necessarily requiring or implying between these entities or operation, there are any
This actual relationship or sequence.Moreover, the terms "include", "comprise" or its any other variant be intended to it is non-exclusive
Property include so that include a series of elements process, method, article or equipment not only include those elements, but also
Further include other elements that are not explicitly listed, or further include for this process, method, article or equipment it is intrinsic
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including described
There is also other identical elements in the process, method, article or equipment of element.
A kind of naked eye 3D diaphragm, including cylindrical lenses, the cylindrical lenses include upper glass sheet and prismatic mirror diaphragm, described
Multiple cylindrical lenses units, the radius of curvature r of the cylindrical lenses unit is arranged in prismatic mirror diaphragmiGradually become from centre to two sides
Small, wherein i ∈ { 0,1 ..., n } indicates the serial number of cylindrical lenses unit, and 0 indicates center pillar lens unit serial number, and n indicates side
Edge cylindrical lenses unit number.
Further, the radius of curvature r of the edge column lens unitnNot less than the curvature of center pillar lens unit
Radius r080%.
Further, the radius of curvature r of the cylindrical lenses unitiChanging rule are as follows: ri=k1·i+r0, wherein k1It indicates
The radius of curvature r of cylindrical lenses unitiGradual change coefficient, k1< 0, r0Indicate the radius of curvature of center pillar lens unit.
Embodiment 1
The present embodiment is for being described in detail the curvature variation of prismatic mirror in the utility model.
As shown in Figure 1, cylindrical lenses include upper glass sheet 1 and prismatic mirror diaphragm 3, picture element 2 for whole light path schematic diagram
It is set to 1 bottom of glass sheet, when 3D diaphragm is affixed on realization 3D visual effect on mobile phone screen, due to the R/L of screen edge
Picture element center is increased with corresponding prismatic mirror optical axis deviation degree, is had an impact to naked eye 3D effect.Due to the position of R/L picture element
It should be lower than and close to the focal length of prismatic mirror, so that light is projected in the form slightly dissipated from prismatic mirror surface.
As shown in Fig. 2, be center cylindrical lenses cell schematics, due in central area, R/L picture element center with it is corresponding
Prismatic mirror optical axis deviation degree is small, and the height of center pillar lens unit to R/L picture element is h0, h0During height approaches and is slightly below
The focal length value f of stem shape lens unit0', if the refractive index of prismatic mirror diaphragm is n', extraneous refractive index is n, and center pillar is saturating
The radius of curvature of mirror unit is r0, according to paraxial relational expression:
As shown in figure 3, for the schematic diagram of edge column lens unit when constant of prismatic mirror thickness in prismatic mirror diaphragm, R/L
Picture element center and corresponding prismatic mirror optical axis deviation degree WnGreatly, edge column lens unit to R/L picture element center height still
For h0, hence it is evident that lower than the focal length value f of edge column lens unitn', i.e. h0 2+Wn 2≤fn',
The radius of curvature r of edge column lens unit at this timenFrom paraxial relational expression:
The radius of curvature r of column lens unit in the i.e. described prismatic mirror diaphragmiIt is become larger from centre to two sides, but in reality
Border application, the picture element center at screen edge is because the center for deviateing edge column lens unit is larger, off axis
Effect can more dissipate when light being caused to be transmitted to column mirror surface by picture element, reduce the viewing contrast of eyes, and image can obscure,
To improve this situation, effective focal length can be shortened, also downgrade the radius of curvature of edge posts shape lens unit.In actual fabrication
When consider processing procedure feasibility, the radius of curvature r of edge column lens unitnNot less than the radius of curvature of center pillar lens unit
r080%, the radius of curvature r of cylindrical lenses unitiChanging rule are as follows: ri=k1·i+r0, wherein k1Indicate cylindrical lenses unit
Radius of curvature riGradual change coefficient, k1< 0, r0Indicate the radius of curvature of center pillar lens unit.It is shown in simulation study, if
Screen width is 1920 picture elements, and every picture element pitch is 63.3 microns, and then pitch is 126.6 microns to every two picture element, prismatic mirror film
The piece period is 126.225 microns, close to the pitch value of two picture elements；According to emulation data acquisition traditional design tables of data, that is, table one
With the design tables of data, that is, table two；
One traditional design tables of data of table
| Left eye contrast | Right eye contrast | |
| Center pillar lens unit radius of curvature _ 1300 micron | 0.649 | 0.649 |
| Edge column lens unit radius of curvature _ 1300 micron | 0.736 | 0.638 |
Two the design tables of data of table
| Left eye contrast | Right eye contrast | |
| Center pillar lens unit radius of curvature _ 1300 micron | 0.649 | 0.649 |
| Edge column lens unit radius of curvature _ 1170 micron | 0.828 | 0.746 |
In conclusion comparison sheet one and table two be it is found that when center cylindrical lenses unit radius of curvature is 1300 microns,
Edge column lens unit radius of curvature is 1170 microns, and right and left eyes can be made to see the contrast of picture by traditional design
0.736/0.638 the 0.828/0.746 for arriving the design is promoted；Wherein contrast C=(Imax-Imin)/(Imax+Imin), wherein Imax
For the information illumination that each eye should receive, IminThe noise illumination that should not be received for each eye；Using the cylindrical lenses of gradual change type,
The light of diaphragm neighboring area can effectively be polymerize, enhance neighboring area light, mention the edge contrast of the naked visual effect fruit of 3D
Degree, and then the stereoscopic effect of neighboring area is improved, to improve the visual effect of whole naked eye 3D.
Claims (3)
1. a kind of naked eye 3D diaphragm, including cylindrical lenses, the cylindrical lenses include upper glass sheet (1) and prismatic mirror diaphragm (3),
It is characterized by: multiple cylindrical lenses units, the radius of curvature r of the cylindrical lenses unit is arranged in the prismatic mirror diaphragm (3)i
It is gradually become smaller from centre to two sides, wherein i ∈ { 0,1 ..., n } indicates the serial number of cylindrical lenses unit, and 0 indicates that center pillar is saturating
Mirror unit serial number, n indicate edge column lens unit serial number.
2. a kind of naked eye 3D diaphragm according to claim 1, it is characterised in that: the curvature of the edge column lens unit
Radius rnNot less than the radius of curvature r of center pillar lens unit080%.
3. a kind of naked eye 3D diaphragm according to claim 1 or 2, it is characterised in that: the song of the cylindrical lenses unit
Rate radius riChanging rule are as follows: ri=k1·i+r0, wherein k1Indicate the radius of curvature r of cylindrical lenses unitiGradual change coefficient, k1
< 0, r0Indicate the radius of curvature of center pillar lens unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821767311.0U CN208969351U (en) | 2018-10-29 | 2018-10-29 | A kind of naked eye 3D diaphragm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821767311.0U CN208969351U (en) | 2018-10-29 | 2018-10-29 | A kind of naked eye 3D diaphragm |
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| Publication Number | Publication Date |
|---|---|
| CN208969351U true CN208969351U (en) | 2019-06-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821767311.0U Expired - Fee Related CN208969351U (en) | 2018-10-29 | 2018-10-29 | A kind of naked eye 3D diaphragm |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022133818A1 (en) * | 2020-12-23 | 2022-06-30 | 京东方科技集团股份有限公司 | Liquid crystal lens, display device and driving method therefor |
-
2018
- 2018-10-29 CN CN201821767311.0U patent/CN208969351U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022133818A1 (en) * | 2020-12-23 | 2022-06-30 | 京东方科技集团股份有限公司 | Liquid crystal lens, display device and driving method therefor |
| US12092919B2 (en) | 2020-12-23 | 2024-09-17 | Boe Technology Group Co., Ltd. | Liquid crystal lens, display device and driving method therefor |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190611 Termination date: 20211029 |