CN106125317A - The structure of a kind of optics display film and preparation method - Google Patents
The structure of a kind of optics display film and preparation method Download PDFInfo
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- CN106125317A CN106125317A CN201610495827.3A CN201610495827A CN106125317A CN 106125317 A CN106125317 A CN 106125317A CN 201610495827 A CN201610495827 A CN 201610495827A CN 106125317 A CN106125317 A CN 106125317A
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- Prior art keywords
- pet film
- film
- lenticule
- predetermined pattern
- ellipsoidal structure
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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
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B3/00—Simple or compound lenses
- G02B3/0006—Arrays
- G02B3/0037—Arrays characterized by the distribution or form of lenses
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/18—Diffraction gratings
- G02B5/1814—Diffraction gratings structurally combined with one or more further optical elements, e.g. lenses, mirrors, prisms or other diffraction gratings
Abstract
The invention discloses structure and the preparation method of a kind of optics display film, the preparation method of this display film is: be stamped liquid solidification glue by being coated with on the first side of thin for high temperature resistance polyester PET film and the second side, wherein, described first side is relative with described second side；Forming multiple lenticule with ellipsoidal structure, wherein, multiple described lenticulees are arranged in arrays；Being stamped on described first side of described PET film by multiple lenticulees with ellipsoidal structure, and imprint predetermined pattern on described second side of described PET film, wherein, described predetermined pattern is provided with the optical grating construction of binary diffraction grating；Irradiated by light source, described first side of described PET film is formed the plurality of lenticule with ellipsoidal structure, and forms described predetermined pattern on described second side of described PET film.The preparation method of this display film achieves a kind of high-resolution, big visual angle, the display effect of dynamic 3D.
Description
Technical field
The present invention relates to the technical field of imaging of microlens array, the structure of a kind of optics display film and system
Preparation Method.
Background technology
Microlens array imaging technology provides a kind of novel Observations Means, and it utilizes lenticular refraction action to micro-
Contract drawing literary composition array is modulated, and is formed in space and has horizontal disparity and the dynamic effect of vertical parallax.This technology is classic
The theoretical example being combined with up-to-date technology, is the imaging theorem the geometric optics before the centuries for optical principle, and it
Application be but to take microelectronics plate-making in the present age and advanced production technology.Based on lenticular imaging technique, scientific research personnel
Research invented a lot of display film apply to we actual production life in.
Prior art occurs in that a kind of laser film, general employing computer array light lithography, 3D true color holography skill
Art, multiple with dynamic imaging techniques etc., through mold have rainbow dynamically, the hologram image of three-dimensional stereo effect transfer to PET
(Polyethylene terephthalate, polyethylene terephthalate), BOPP (Biaxially Oriented
Polypropylene, bidirectional stretching polypropylene film), PVC (Polyvinyl chloride, polrvinyl chloride) or band coating
On base material, the modes such as compound, thermoprint, transfer are then utilized to make commodity packaging surface obtain certain laser effect.But it is radium-shine
Film is still single-layer membrane structure, it is impossible to realize dynamic effect.
Traditional display film is single-sided structure, and the microlens array of display film is all spherical microlens, intrinsic aberration
Final display effect is have impact on little viewing angle.
Summary of the invention
The purpose of the embodiment of the present invention is to provide structure and the preparation method of a kind of optics display film, improves tradition one side
Display film imaging process in aberration, it is provided that one become apparent from, the image of bigger viewing vision area, to realize the high definition of image
The display effect of the dynamic 3D in visual angle clear, big.
For reaching above-mentioned purpose, the embodiment of the invention discloses the structure of a kind of optics display film, including:
Multiple lenticulees with ellipsoidal structure, wherein, multiple described lenticulees are arranged in arrays；
The thin PET film of high temperature resistance polyester, the first side of described PET film is provided with described lenticule, the of described PET film
Being provided with a predetermined pattern on two side faces, wherein, described predetermined pattern is provided with the optical grating construction of binary diffraction grating, and described
One side is relative with described second side.
It is also preferred that the left impressing has predetermined pattern described on the second side of described PET film.
It is also preferred that the left described predetermined pattern carves the optical grating construction being provided with binary diffraction grating.
It is also preferred that the left described lenticular eccentricity is e, wherein, described e is:
Wherein y is incident illumination height in aspheric surface, and x is aspheric rotation axes of symmetry,For
Vertex curvature radius.
It is also preferred that the left described binary diffraction grating diffration angle θ is:
The cycle b of described binary diffraction grating is:
Groove depth d of described binary diffraction grating is:
The wavelength of the incident illumination light wave of wherein said binary diffraction grating is λ, the material refraction of described binary diffraction grating
Rate is n, and described lenticular aperture is p.
For reaching above-mentioned purpose, the embodiment of the invention also discloses the preparation method of described display film, including:
It is stamped liquid solidification glue, wherein, institute by being coated with on the first side of thin for high temperature resistance polyester PET film and the second side
State the first side relative with described second side；
Forming multiple lenticule with ellipsoidal structure, wherein, multiple described lenticulees are arranged in arrays；
Multiple lenticulees with ellipsoidal structure are stamped on described first side of described PET film, and in institute
Stating impressing predetermined pattern on described second side of PET film, wherein, described predetermined pattern is provided with the grating of binary diffraction grating
Structure；
Irradiated by light source, described first side of described PET film formed and the plurality of there is ellipsoidal structure
Lenticule, and form described predetermined pattern on described second side of described PET film.
It is also preferred that the left the multiple lenticule with ellipsoidal structure of described formation, including:
Pass through formulaForm an ellipsoidal structure；
According to described ellipsoidal structure, forming multiple lenticule with ellipsoidal structure, wherein, y is that incident illumination is non-
Height on sphere, x is aspheric rotation axes of symmetry,For vertex curvature radius, e is the eccentricity of curve.
Formula is passed through described in it is also preferred that the leftForm an ellipsoidal structure, including:
By aberration balancing algorithm, by formulaIn e be adjusted to preset value；
According to described preset value, form multiple lenticule with ellipsoidal structure.
It is also preferred that the left described described first side that multiple lenticulees with ellipsoidal structure are stamped in described PET film
On, and on described second side of described PET film, imprint predetermined pattern, including:
By having the roller of multiple described lenticule nickel plate parcel, by multiple lenticule impressings with ellipsoidal structure
On described first side of described PET film, and
By having the roller of described predetermined pattern nickel plate parcel, on described second side of described PET film, impressing is pre-
If pattern.
Irradiated it is also preferred that the left described by light source, described first side of described PET film is formed the plurality of have ellipse
The lenticule of circular configuration, and form described predetermined pattern on described second side of described PET film, including:
By ultraviolet source irradiation, described first side of described PET film is formed and the plurality of there is oval knot
The lenticule of structure, and form described predetermined pattern on described second side of described PET film.
In the structure showing film and preparation method of the present invention, by imprinting multiple tool on the first side of PET film
There is the lenticule of ellipsoidal structure, and impressing is provided with the grating of binary diffraction grating on the second side of described PET film
The predetermined pattern of structure, image information, is changed again by the lenticular imaging of multiple ellipsoidal structures by described predetermined pattern
It is apt to the aberration in traditional one side display film imaging process, provides an image display effect become apparent to observer, with
The lenticule of this simultaneously ellipsoidal structure provides bigger viewing vision area compared to traditional spherical microlens, and image information is led to
Cross the process of predetermined pattern, it is achieved that more colourful dynamic effect, be finally presented in face of observer be high-resolution,
Big visual angle, the image of dynamic 3D shows, is a kind of splendid viewing effect for observer.Certainly, appointing of the present invention is implemented
One product or method must be not necessarily required to reach all the above advantage simultaneously.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
In having technology to describe, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to
Other accompanying drawing is obtained according to these accompanying drawings.
Fig. 1 is the structure chart of the display film of the embodiment of the present invention；
Fig. 2 is the preparation method flow chart of the display film of the embodiment of the present invention；
Fig. 3 is the physical relationship figure of the aspheric curve of prior art；
Fig. 4 is the microlens structure schematic diagram of the ellipsoidal structure of the embodiment of the present invention；
Fig. 5 is the lenticule threedimensional model schematic diagram of the ellipsoidal structure of the embodiment of the present invention；
Fig. 6 is the lenticular spatial aspect layout viewing of multiple ellipsoidal structures of the embodiment of the present invention；
Fig. 7 is that light is concentrated on ellipse by binary diffraction grating by the light that embodiment of the present invention edge pixel A sends
Schematic diagram on the lenticule of structure；
Fig. 8 is the binary diffraction optical grating construction figure of the embodiment of the present invention；
Fig. 9 is the rotation dynamic variation effect figure of the embodiment of the present invention；
Figure 10 is the two-dimensional transform design sketch of the embodiment of the present invention；
Figure 11 is the producing device figure of the display film of the embodiment of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Describe, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments wholely.Based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under not making creative work premise
Embodiment, broadly falls into the scope of protection of the invention.
The purpose of the embodiment of the present invention is to invent a kind of structure showing film and preparation method.In this scenario, display
Film is the double-sided display film with double-layer structure, and the first side of the thin PET film of high temperature resistance polyester is provided with described lenticule, the
Being provided with a predetermined pattern on two side faces, wherein, described predetermined pattern is provided with the optical grating construction of binary diffraction grating, and described
One side is relative with described second side.Image information first passes through the predetermined pattern with optical grating construction, through binary raster
Diffraction and the process of coding that arranges in predetermined pattern, in the lenticular imaging through ellipsoidal structure, finally ellipse
High-resolution, big visual angle, the display effect of dynamic 3D is presented to observer on the lenticule of circular configuration.
Below by way of specific embodiment, the present invention is described in detail.
As it is shown in figure 1, the structure chart that Fig. 1 is embodiment of the present invention display film, the structure of this display film includes:
Multiple lenticulees 101 with ellipsoidal structure, wherein, multiple described lenticule 101 is in rectangular array；
In the present embodiment, the shape of micro-lens surface is obtained as oval by formula, and the lenticule 101 of ellipsoidal structure is
Being obtained by aberration balancing algorithm optimization, in aberration balancing algorithm, the value by obtaining lenticular eccentric ratio e determines
The parameter of the lenticule 101 of ellipsoidal structure, relative to traditional spherical microlens, the picture of the lenticule 101 of ellipsoidal structure
Difference is little, and viewing vision area is big.
It is also preferred that the left in the present embodiment, described lenticular eccentricity is e, and wherein, described e is:
Wherein y is incident illumination height in aspheric surface, and x is aspheric rotation axes of symmetry,For
Vertex curvature radius.
PET film 102, Polyethylene terepthalate polyethylene terephthalate is referred to as PET,
It is provided with a predetermined pattern on second side of described PET film 102,
It is provided with described lenticule on first side of described PET film 102, the second side of described PET film 102 is arranged
Having a predetermined pattern, wherein, described predetermined pattern is provided with the optical grating construction of binary diffraction grating 103, described first side with
Described second side is relative.
It is also preferred that the left impressing has predetermined pattern described on the second side of described PET film 102, described predetermined pattern is carved and is set
There is the optical grating construction of binary diffraction grating 103.
Being provided with binary diffraction grating 103 it is also preferred that the left carve in described predetermined pattern, binary diffraction grating 103 can be by spreading out
Light is focused on lenticular paraxial region to improve aberration by the effect of penetrating, and this predetermined pattern is additionally provided with coding, and coding can be real
The Dynamic Announce effect of existing image information.Direction by the coding that will set in advance and required control light is defeated in an embodiment
Enter in litho machine, the predetermined pattern with binary diffraction optical grating construction can be formed by photoetching technique on photoresist sheet.
Lenticule on tradition display film is spherical microlens, and the pattern that coding is formed utilizes planographic to realize,
Structure is single-sided structure, it addition, the laser film occurred in prior art is also single-sided structure, the display film of the present embodiment is two-sided
Structure, this bilateral structure greatly reduces aberration relative to traditional one side display membrane structure in imaging, and image quality is higher.
As in figure 2 it is shown, the preparation method flow chart that Fig. 2 is embodiment of the present invention display film, idiographic flow is as follows:
Step 201, is stamped liquid solidification by being coated with on the first side of thin for high temperature resistance polyester PET film and the second side
Glue, wherein, described first side is relative with described second side；
Step 202, forms multiple lenticule with ellipsoidal structure, and wherein, multiple described lenticulees are arranged in arrays；
Multiple lenticulees with ellipsoidal structure are stamped on described first side of described PET film by step 203,
And on described second side of described PET film, imprint predetermined pattern, wherein, described predetermined pattern is provided with binary diffraction light
The optical grating construction of grid；
Step 204, is irradiated by light source, is formed and the plurality of have ellipse on described first side of described PET film
The lenticule of shape structure, and form described predetermined pattern on described second side of described PET film.
As it is shown on figure 3, the physical relationship figure of the aspheric curve that Fig. 3 is prior art.Aberration is consolidating of lenticule imaging
Having character, the existence of aberration significantly impacts lenticular image quality, therefore, in order to provide one to clearly indicate effect,
We, by lenticular design is reduced aberration, improve the definition of image.In lenticular design process, we are first
Problem to be solved is blur-free imaging, i.e. improves image quality, has done following example analysis for this:
It is also preferred that the left the preparation method of described display film, the multiple lenticule with ellipsoidal structure of described formation, bag
Include:
Pass through formulaForm an ellipsoidal structure；
According to described ellipsoidal structure, forming multiple lenticule with ellipsoidal structure, wherein, y is that incident illumination is non-
Height on sphere, x is aspheric rotation axes of symmetry,For vertex curvature radius, e is the eccentricity of curve.Identical
Under conditions of lens aperture and radius of curvature, reaching to reduce the purpose of aberration by the value adjusting e, we can obtain one
Face type is the lenticule of ellipsoidal structure, and the e of our used elliptic curve is 1 > e in the present embodiment2>0。
As shown in Figure 4, Fig. 4 is the microlens structure schematic diagram of ellipsoidal structure of the embodiment of the present invention.
It is also preferred that the left the preparation method of described display film, described in pass through formulaForm one
Ellipsoidal structure, including:
By aberration balancing algorithm, by formulaIn e be adjusted to preset value；
According to described preset value, form multiple lenticule with ellipsoidal structure.
The lenticule of this ellipsoidal structure is i.e. to solve aberration balancing equation by the value adjusting e to determine, this is oval
The lenticule of shape structure is the lenticule of the optimum ellipsoidal structure of imaging, it is not limited to a kind of oval knot of this specification
The lens of structure.Elliptic curve preset value eccentric ratio e is obtained by aberration balancing algorithm2When=0.396, imaging display effect is optimal, because of
This can determine that other parameters lenticular of this ellipsoidal structure.The lenticular parameters of this ellipsoidal structure is: top
The radius of curvature of point isLenticule sagitta is h=0.0087mm, and lenticule aperture is P=0.03175mm,
Refractive index is n=1.56, and these parameters can uniquely determine the lenticular specification of ellipsoidal structure.
As it is shown in figure 5, the lenticule threedimensional model schematic diagram of the ellipsoidal structure that Fig. 5 is the embodiment of the present invention, wherein, aobvious
Show that a side of film is this multiple described lenticule formation arranged in arrays preset.
In the embodiment of the present invention, by lenticular design, relative to traditional spherical microlens, ellipsoidal structure
Lenticule effectively reduces aberration, improves the definition of imaging.
The major issue lenticular design of this ellipse micro structure being additionally needed to solution increases sight exactly
See vision area.It is specifically described below
In the present embodiment as shown in Figure 6, Fig. 6 is that the lenticular space of multiple ellipsoidal structures of the embodiment of the present invention regards
Point layout viewing, 601 is the pixel of coding, and 602 is the lenticule of multiple ellipsoidal structure, and 603 arrange for space pilot.Fig. 6 is
Image information is imaged on the pilot arrangement situation that space level direction is formed, vertical direction feelings through the lenticule of ellipsoidal structure
Condition is identical, and we are described in detail as a example by 16 viewpoints.
From Fig. 6 it will be seen that as a example by one-dimensional horizontal direction, the lenticule of each ellipsoidal structure is in level side
To being covered with 16 pixels, these 16 pixels are respectively derived from the sequence chart that 16 width are different, micro-by ellipsoidal structure
Viewpoint is arranged by the refraction action of mirror 602 in space.Wherein T is viewing vision area, and P is lenticular aperture, and L is viewing
Distance, in like manner, vertical direction covers 16 pixels equally, and the lenticule of the most each ellipsoidal structure can cover 256 pictures
Element, they come from 256 sequence chart.
The formula that multiple lenticule shows has been drawn according to lenticular basic imaging theorem:
Wherein f is lenticular focal length, and P is lenticular aperture, and L is viewing distance, and T is to be in the viewing cycle to watch
Vision area scope.From formula, can be seen that, when viewing distance L mono-timing, the size in viewing cycle depends on focal distance f and aperture P
Ratio, ratio is the least, viewing the cycle the biggest.
For traditional spherical microlens, when refractive index is 1.5, the minima of f/P is 1.For ellipsoidal structure
Lenticule, can make this ratio less than 1 according to the adjustment of circular cone coefficient thus reach to increase the purpose of viewing vision area.In this
Simultaneously for traditional spherical microlens, when the value of f/P is equal to 1, lenticule is equivalent to a hemisphere, the most lenticular
Image quality is excessively poor, and the lenticule for ellipsoidal structure does not then have too much influence.Therefore, ellipsoidal structure is micro-
Lens can not only effectively improve image quality, is also well to select for increasing viewing vision area.
In the embodiment of the present invention, another side of the display film of preparation is described predetermined pattern, and this predetermined pattern is carved
Being provided with binary diffraction optical grating construction, this binary diffraction Grating Design is as described below.
As it is shown in fig. 7, the light that Fig. 7 is embodiment of the present invention edge pixel A to be sent passes through binary diffraction grating by light collection
In schematic diagram on the lenticule of ellipsoidal structure.The light that in this figure, pixel A the sends diffraction by binary raster
Light near chief ray concentrates on the lenticular paraxial region of ellipsoidal structure, and wherein θ is the angle of diffraction of chief ray.Binary
The effect of diffraction grating is that light orientation predetermined pattern pixel sent is diffracted into the lenticular paraxial of corresponding ellipsoidal structure
District is to reduce further the impact of aberration, owing to the light beam near chief ray contains the main energetic of divergent beams, therefore with
The principle that binary raster is modulated is illustrated as a example by chief ray.
As shown in Figure 8, Fig. 8 is the binary diffraction optical grating construction figure of the embodiment of the present invention, and we set as a example by chief ray
Meter binary diffraction grating.
It is also preferred that the left described binary diffraction grating diffration angle θ is:
The cycle b of described binary diffraction grating is:
Groove depth d of described binary diffraction grating is:The incident illumination light wave of wherein said binary diffraction grating
Wavelength is λ, and the material refractive index of described binary diffraction grating is n, and described lenticular aperture is p.
Designed by above-mentioned analysis, after obtaining corresponding binary raster parameter, utilize interference lithography machine to encode
The direction of pattern and required control light is input in interference lithography machine be formed through interference photoetching technology have binary diffraction grating
The predetermined pattern of structure, the predetermined pattern with optical grating construction is transferred on impression roller by recycling electroforming process.
A kind of three-dimensional dynamic optical grid occurred at present, is the vision difference according to people and prepared by light refraction principle one
Kind of optical imagery material, generates the very color holographic stereoscopic picture plane of a width grating picture through special handling on grating, presents to
Observer.Although existing 3 D grating sheet achieves preferable appreciation effect, but the binary diffraction grating of our design, permissible
Pixel chief ray orientation is diffracted into lenticular paraxial region, thus further reduces the aberration in imaging process, thus
Improve the definition of display film further.
It is also preferred that the left described display film can be shown that dynamic imaging effect, be given in the present embodiment as shown in Figure 9
A kind of dynamic effect picture, Fig. 9 is the rotation dynamic variation effect figure of the embodiment of the present invention, and it is that observer is finally at multiple ellipses
On the lenticule of shape structure it can be seen that dynamic rotary display effect figure.The present embodiment is seen in 360 degree of directions as observer
When examining display film, the club should being made up of little rhombus rotates by 360 degree.
It is also preferred that the left the present embodiment gives a kind of two-dimensional transform design sketch as shown in Figure 10, Figure 10 is that the present invention is real
Executing the two-dimensional transform design sketch of example, when observer watches in the horizontal direction, big A becomes little A and becomes big A again, is putting of image
Reduce greatly effect；When observer vertically watches, A can be changed into B and becomes the transform effect that A is image again.Its formation
Journey is one group of sequence chart of the one of horizontal direction group of sequence chart and vertical direction to be wanted according to concrete lenticule parameter and viewing
Ask the arrangement carrying out image pixel finally to synthesize a code pattern, realize more enriching lively viewing effect to observer.
The present embodiment provides a kind of producing device figure showing film such as Figure 11.
It is stamped liquid solidification glue by being coated with on the first side of thin for high temperature resistance polyester PET film 1103 and the second side, its
In, described first side is relative with described second side；
I.e. in this producing device, gluing roller bearing 1102 is become by 3 set of balls, and ball surface contacts, and one of them ball is positioned at
In ultra-violet curing glue pond 1101, a middle linking bead, there are a slightly larger ball, the surface of this ball and PET on this bead
Film 1103 contacts, and gluing roller bearing 1102 is rotated by axle, and the ultra-violet curing glue in ultra-violet curing glue pond 1101 is applied to PET film
The both sides of 1103；
Forming multiple lenticule with ellipsoidal structure, wherein, multiple described lenticulees are arranged in arrays；
Multiple lenticulees with ellipsoidal structure are stamped on described first side of described PET film 1103, and
Imprinting predetermined pattern on described second side of described PET film 1103, wherein, described predetermined pattern is provided with binary diffraction light
The optical grating construction of grid；
It is also preferred that the left described, multiple lenticulees with ellipsoidal structure are stamped in described the first of described PET film 1103
On side, and on described second side of described PET film 1103, imprint predetermined pattern, including:
The roller 1104 wrapped up by the nickel plate with multiple described microlens structure, has ellipsoidal structure by multiple
Lenticule is stamped on described first side of described PET film 1103, and
By having the roller 1105 of described predetermined pattern nickel plate parcel, in described second side of described PET film 1103
Upper impressing predetermined pattern.
In this preparation facilities, the upper surface of this PET film 1103 is the lenticular roller with multiple ellipsoidal structure
1104, the nickel plate will with multiple described microlens structure is wrapped on roller 1104, and roller 1104 is to scribbling ultra-violet curing
The PET film 1103 being in glue viscous pasty state imprints, and the lower surface of PET film 1103 is the roller 1105 with predetermined pattern,
The photoresist sheet will with predetermined pattern is transferred in nickel plate through electrochemical apparatus, then nickel plate is wrapped in roller 1105
On, the PET film 1103 scribbling ultra-violet curing glue and being in glue viscous pasty state is imprinted by roller 1105；
Irradiated by light source, described first side of described PET film 1103 is formed and the plurality of there is oval knot
The lenticule of structure, and form described predetermined pattern on described second side of described PET film 1103.
Irradiated by light source it is also preferred that the left described, described first side of described PET film 1103 forms the plurality of tool
There is the lenticule of ellipsoidal structure, and on described second side of described PET film 1103, form described predetermined pattern, bag
Include:
Irradiated by ultraviolet source 1106, described first side of described PET film 1103 is formed and the plurality of has
The lenticule of ellipsoidal structure, and form described predetermined pattern on described second side of described PET film 1103.
Irradiated by ultraviolet source 1106 in the apparatus transfers on PET film 1103 respectively by double-layer structure, then this film
Complete.
The embodiment of the present invention describes a kind of structure showing film and preparation method, it is achieved that a kind of high-resolution, big visual angle,
The dynamically display effect of 3D.Its key technology is lenticular design and the design of predetermined pattern of ellipsoidal structure.Pass through
The lenticular design of multiple ellipsoidal structures combine binary raster orientation diffraction character to improve viewing definition and
Visual angle, combines lenticular imaging character by different coded systems, allows observer experience rich and varied Dynamic Announce
Effect.The program is to do existing display film preferably to improve and promote, to existing lenticule imaging technique and optical grating diffraction
Technology is also to have obtained more preferable application.
It should be noted that in this article, the relational terms of such as first and second or the like is used merely to a reality
Body or operation separate with another entity or operating space, and deposit between not necessarily requiring or imply these entities or operating
Relation or order in any this reality.And, term " includes ", " comprising " or its any other variant are intended to
Comprising of nonexcludability, so that include that the process of a series of key element, method, article or equipment not only include that those are wanted
Element, but also include other key elements being not expressly set out, or also include for this process, method, article or equipment
Intrinsic key element.In the case of there is no more restriction, statement " including ... " key element limited, it is not excluded that
Including process, method, article or the equipment of described key element there is also other identical element.
Each embodiment in this specification all uses relevant mode to describe, identical similar portion between each embodiment
Dividing and see mutually, what each embodiment stressed is the difference with other embodiments.Real especially for system
For executing example, owing to it is substantially similar to embodiment of the method, so describe is fairly simple, relevant part sees embodiment of the method
Part illustrate.
The foregoing is only presently preferred embodiments of the present invention, be not intended to limit protection scope of the present invention.All
Any modification, equivalent substitution and improvement etc. made within the spirit and principles in the present invention, are all contained in protection scope of the present invention
In.
Claims (10)
1. the structure of an optics display film, it is characterised in that including:
Multiple lenticulees with ellipsoidal structure, wherein, multiple described lenticulees are arranged in arrays；
The thin PET film of high temperature resistance polyester, the first side of described PET film is provided with described lenticule, the second side of described PET film
Being provided with a predetermined pattern on face, wherein, described predetermined pattern is provided with the optical grating construction of binary diffraction grating, described first side
Face is relative with described second side.
2. the structure of optics display film as claimed in claim 1, it is characterised in that
On second side of described PET film, impressing has predetermined pattern described in.
3. the structure of optics display film as claimed in claim 1, it is characterised in that
Described predetermined pattern carves the optical grating construction being provided with binary diffraction grating.
4. the structure of optics display film as claimed in claim 1, it is characterised in that
Described lenticular eccentricity is e, and wherein, described e is:
Wherein y is incident illumination height in aspheric surface, and x is aspheric rotation axes of symmetry,For summit
Radius of curvature.
5. the structure of the optics display film as described in claim 1 or 4, it is characterised in that
Described binary diffraction grating diffration angle θ is:
The cycle b of described binary diffraction grating is:
Groove depth d of described binary diffraction grating is:
Wherein, the wavelength of the incident illumination light wave of described binary diffraction grating is λ, and the material refractive index of described binary diffraction grating is
N, described lenticular aperture is p.
6. the preparation method showing film, it is characterised in that be applied to as described in any one of claim 1 to claim 5
Optics display film structure, the preparation method of described display film includes:
It is stamped liquid solidification glue by being coated with on the first side of thin for high temperature resistance polyester PET film and the second side, wherein, described the
One side is relative with described second side；
Forming multiple lenticule with ellipsoidal structure, wherein, multiple described lenticulees are arranged in arrays；
Multiple lenticulees with ellipsoidal structure are stamped on described first side of described PET film, and at described PET
Imprinting predetermined pattern on described second side of film, wherein, described predetermined pattern is provided with the optical grating construction of binary diffraction grating；
Irradiated by light source, described first side of described PET film is formed and the plurality of there is the micro-of ellipsoidal structure
Mirror, and form described predetermined pattern on described second side of described PET film.
7. the preparation method showing film as claimed in claim 6, it is characterised in that described formation is multiple has ellipsoidal structure
Lenticule, including:
Pass through formulaForm an ellipsoidal structure；
According to described ellipsoidal structure, forming multiple lenticule with ellipsoidal structure, wherein, y is that incident illumination is in aspheric surface
On height, x is aspheric rotation axes of symmetry,For vertex curvature radius, e is the eccentricity of curve.
8. the as claimed in claim 7 preparation method showing film, it is characterised in that described in pass through formulaForm an ellipsoidal structure, including:
By aberration balancing algorithm, by formulaIn e be adjusted to preset value；
According to described preset value, form multiple lenticule with ellipsoidal structure.
9. the as claimed in claim 6 preparation method showing film, it is characterised in that described have ellipsoidal structure by multiple
Lenticule is stamped on described first side of described PET film, and impressing is preset on described second side of described PET film
Pattern, including:
By having the roller of multiple described lenticule nickel plate parcel, multiple lenticulees with ellipsoidal structure are stamped in institute
State on described first side of PET film, and
By having the roller of described predetermined pattern nickel plate parcel, on described second side of described PET film, impressing presets figure
Case.
10. the as claimed in claim 6 preparation method showing film, it is characterised in that described irradiated by light source, described
The plurality of lenticule with ellipsoidal structure is formed on described first side of PET film, and described in described PET film
Described predetermined pattern is formed on second side, including:
By ultraviolet source irradiation, described first side of described PET film is formed and the plurality of there is ellipsoidal structure
Lenticule, and form described predetermined pattern on described second side of described PET film.
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| CN201610495827.3A CN106125317A (en) | 2016-06-28 | 2016-06-28 | The structure of a kind of optics display film and preparation method |
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| CN201610495827.3A CN106125317A (en) | 2016-06-28 | 2016-06-28 | The structure of a kind of optics display film and preparation method |
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| CN101850680A (en) * | 2010-05-24 | 2010-10-06 | 苏州苏大维格光电科技股份有限公司 | Safety film with dynamic three-dimensional effect |
| CN102405434A (en) * | 2009-03-04 | 2012-04-04 | 证券票据国际私人有限公司 | Improvements in methods for producing lens arrays |
| CN102991860A (en) * | 2011-09-08 | 2013-03-27 | 上海天臣防伪技术股份有限公司 | Packaging film with anti-fake function with three-dimensional dynamic displaying effect |
| CN103309047A (en) * | 2013-06-09 | 2013-09-18 | 上海天臣控股有限公司 | Film of visual stereoscopic floating images and manufacturing method thereof |
| CN103358808A (en) * | 2012-03-28 | 2013-10-23 | 中钞特种防伪科技有限公司 | Optical anti-fake element and products utilizing same |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102405434A (en) * | 2009-03-04 | 2012-04-04 | 证券票据国际私人有限公司 | Improvements in methods for producing lens arrays |
| CN101850680A (en) * | 2010-05-24 | 2010-10-06 | 苏州苏大维格光电科技股份有限公司 | Safety film with dynamic three-dimensional effect |
| CN102991860A (en) * | 2011-09-08 | 2013-03-27 | 上海天臣防伪技术股份有限公司 | Packaging film with anti-fake function with three-dimensional dynamic displaying effect |
| CN103358808A (en) * | 2012-03-28 | 2013-10-23 | 中钞特种防伪科技有限公司 | Optical anti-fake element and products utilizing same |
| CN103309047A (en) * | 2013-06-09 | 2013-09-18 | 上海天臣控股有限公司 | Film of visual stereoscopic floating images and manufacturing method thereof |
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