CN105158830A - Display body and labeled article - Google Patents
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- CN105158830A CN105158830A CN201510630039.6A CN201510630039A CN105158830A CN 105158830 A CN105158830 A CN 105158830A CN 201510630039 A CN201510630039 A CN 201510630039A CN 105158830 A CN105158830 A CN 105158830A
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Abstract
The invention relates to a display body and a labeled article, which are used for achieving an anti-counterfeiting technology with a high anti-counterfeiting effect. The display body (1) comprises a plurality of light-scattering regions (20a, 20b) in each of which a plurality of linear convex portions and/or concave portions with consistent length directions are arranged. The light-scattering regions (20a, 20b) are different from each other in the length direction.
Description
The divisional application that the application is the applying date is on April 18th, 2008, application number is 200880124834.6, denomination of invention is the application of display body and labeled article.
Technical field
The present invention relates to display body and labeled article.The present invention such as relates to and can be used in the false proof of the article such as various card class, securities class and various brand goods and utilize light scattering to show the display body of picture and to comprise the labeled article of this display body.
Background technology
Utilize light scattering to show the pattern (hereinafter referred to as light scattering pattern) of picture usually by implementing concavo-convex processing to be formed on the surface of base material.As this concavo-convex job operation, such as, can enumerate and etching method is carried out to base material, utilize medicine to make the coarse method of the surface element of base material, form concavo-convex method etc. by electron beam (EB) drawing apparatus at substrate surface.
Among those methods, as utilizing etching method and using the method for medicine, be difficult to the density certain tiny area on the surface that will form recess and/or protuberance and other tiny areas changing recess and/or protuberance.Therefore, the density be difficult to by controlling recess and/or protuberance makes the degree of the scattering in these regions different.On the other hand, if use EB drawing apparatus, then density and the shape of recess and/or the protuberance formed on tiny area can at random be controlled.
In Japanese Unexamined Patent Publication 5-273500 publication, describe the display body that a kind of EB of use drawing apparatus forms diffraction grating pattern and light scattering pattern on the same face.This display body has following effect.
A (), owing to not being only based on the display of diffraction light, therefore the restriction of observation condition is less.
B (), owing to scattered light to be used for display, is not therefore the image appearance only bringing sparkling impression yet.
C () is made up of recess and/or protuberance due to the both sides of diffraction grating pattern and light scattering pattern, therefore, it is possible to be shaped by salient point (emboss) form these patterns, and do not need the contraposition of these patterns.
But, if there are the equipment such as laser instrument, the diffraction grating of embossment (relief) type just can be formed with comparalive ease.In addition, the visual effect of the light scattering pattern included by above-mentioned display body such as also can be obtained by the printed layers containing transparent particles and the transparent resin different from its refractive index.Therefore, the antifalse effect of this display body is not necessarily enough.
Summary of the invention
The object of the invention is to, realize a kind of anti-counterfeiting technology obtaining higher antifalse effect.
According to a first aspect of the invention, provide a kind of display body, possess and be provided with the protuberance of the consistent multiple linearities of length direction and/or multiple light scattering sites of recess separately, in above-mentioned multiple light scattering sites, above-mentioned length direction is mutually different.
According to a second aspect of the invention, provide a kind of labeled article, possess the display body that first aspect relates to and the article supporting above-mentioned display body.
Accompanying drawing explanation
Fig. 1 is the vertical view that outline represents the display body of the first embodiment of the present invention.
Fig. 2 is the summary sectional view along II-II line of the display body shown in Fig. 1.
Fig. 3 be represent be incident to diffraction grating the diffraction light emitted by illumination light and diffraction grating between the figure of an example of relation.
Fig. 4 is the vertical view that outline represents an example of light scattering sites.
Fig. 5 is the vertical view of the example representing the adoptable structure in light scattering sites.
Fig. 6 is the vertical view of other examples representing the adoptable structure in light scattering sites.
Fig. 7 is the vertical view of other examples representing the adoptable structure in light scattering sites.
Fig. 8 is the vertical view of other examples representing the adoptable structure in light scattering sites.
Fig. 9 is the vertical view of other examples representing the adoptable structure in light scattering sites.
Figure 10 is the vertical view that outline represents the display body of the second embodiment of the present invention.
Figure 11 is the vertical view of the variation of the display body shown in diagrammatic representation 10.
Figure 12 is the stereographic map that outline represents an example of the protuberance of the shape comprised beyond wire and/or the light scattering sites of recess.
Figure 13 be outline represent comprise traditional thread binding beyond the protuberance of shape and/or the stereographic map of other examples of the light scattering sites of recess.
Figure 14 is the vertical view that outline represents an example to the article that display body supports.
Embodiment
Below, the embodiment that present invention will be described in detail with reference to the accompanying.Wherein, for the reference marks that the textural element playing same or similar function is additional identical in whole accompanying drawing, and the repetitive description thereof will be omitted.
Fig. 1 is the vertical view that outline represents the display body of the first embodiment of the present invention.Fig. 2 is the summary sectional view along II-II line of the display body shown in Fig. 1.
Display body 1 comprises layer 2.Layer 2 such as comprises transmitance material layer 50 and layer of reflective material 51.As shown in Figure 2, also can layer of reflective material 51 with the face of transmitance material layer 50 opposition side on knitting layer 52 is set.In addition, in the example shown in Fig. 2, using transmitance material layer 50 side as front face side, using knitting layer 52 side as rear side.
Layer of reflective material 51 covers the back side of transmitance material layer 50.At transmitance material layer 50 with on the interface of layer of reflective material 51, be provided with sag and swell.Wait until aftermentioned for this sag and swell.The interface that layer of reflective material 51 at least covers transmitance material layer 50 is shown the region of picture by sag and swell.Knitting layer 52 is located in layer of reflective material 51.
Transmitance material layer 50 such as plays the effect of the substrate as layer of reflective material 51.In addition, transmitance material layer 50 protects sag and swell not by surperficial dirt or damage etc., thus, plays the long-term effect keeping the visual effect of display body 1.And then transmitance material layer 50 does not make sag and swell expose, copying of this sag and swell is made to become difficulty thus.Also a side of transmitance material layer 50 and layer of reflective material 51 can be omitted.When omitting layer of reflective material 51, increasing the refringence of transmitance material 50 and knitting layer 52 or knitting layer 52 is set to there is reflexive material, to reflect on transmitance material 50 with the interface of knitting layer 52.
As the material of transmitance material 50, thermoplastic resin or ultraviolet curable resin etc. are being preferred by using the transfer printing of master to be formed in sag and swell.When utilizing salient point, if form the sag and swell corresponding with diffractive grating regions 10 described later and light scattering sites 20a and 20b accurately in advance on master, then accurate volume production duplicate easily can be obtained.
For transmission material layer 50, consider the easy formative etc. of surface strength and sag and swell, also can adopt the structure of more than 2 layers.In addition, when the material using metal as layer of reflective material 51, in order to resultant metallic luster look is changed into the color different from it, also dyestuff etc. can be mixed in transmission material layer 50, the light of the wavelength that this dye absorber is specified.
Layer of reflective material 51 plays the effect improving and be provided with the reflectivity at the interface of sag and swell.As the material of layer of reflective material 51, such as, the metal materials such as Al, Ag can be used.In addition, the material of layer of reflective material 51 also can be the transparent material that the refractive indexes such as dielectric material are different from transmitance material layer 50.Layer of reflective material 51 is not limited to individual layer, also can be multilayer film.
Knitting layer 52 is set to wants false proof article for display body 1 being arranged on.Knitting layer 52 is considered display body 1 and is wanted the false proof bond strength of article and the flatness etc. on composition surface, also can be the structure of more than 2 layers.
In addition, depict the structure of observing display body 1 from transmitance material layer 50 side in fig. 2, but also can adopt the structure of observing display body 1 from layer of reflective material 51 side.
Then, the sag and swell be located on layer 2 is described.
Layer 2 comprises diffractive grating regions 10, first light scattering sites 20a, the second light scattering sites 20b and region 30.
In diffractive grating regions 10, at transmitance material layer 50 with on the interface of layer of reflective material 51, define the diffraction grating pattern be made up of the diffraction grating of relief type.This diffraction grating such as arranges multiple groove and forms.In addition, term " diffraction grating " refers to the structure producing diffracted wave by irradiating illumination light, such as, be set to except the common diffraction grating configuring multiple groove in parallel and equidistantly, also comprise the interference fringe recorded in hologram.In addition, the part that groove or groove clip is called " grid stroke ".
The degree of depth forming the groove of diffraction grating is such as set in the scope of 0.1 ~ 1 μm.In addition, the grating constant of diffraction grating is such as set in the scope of 0.5 ~ 2 μm.
Light scattering sites 20a and 20b each in, on transmitance material layer 50 interface with layer of reflective material 51, be provided with protuberance and/or the recess of the consistent multiple linearities in direction.In addition, in region 20a and region 20b, the protuberance of linearity and/or the direction of recess mutually different.
When throwing light on from the normal direction in region to region 20a or 20b, scattered light is penetrated with the widest angle of emergence scope, i.e. wide-angle in this region in the face vertical with the protuberance of linearity and/or the length direction of recess, in the face parallel and vertical with the interarea of above-mentioned zone with the protuberance of linearity and/or the length direction of recess, penetrate scattered light with the narrowest angle of emergence scope.Below, the size term " light scattering energy " light scattering sites being penetrated the angular range of the scattered light of more than some strength shows.Such as, when using term " light scattering energy ", above-mentioned optical characteristics can be recited as " each of region 20a and 20b presents minimum light scattering energy on the protuberance of linearity and/or the length direction of recess, and perpendicular direction presents maximum light scattering energy ".In addition, the character that maximum light scattering fully can exist with the difference of minimum light scattering energy is called " light scattering energy anisotropy ".
The protuberance of linearity and/or the length of recess are such as set to more than 10 μm.In addition, the width of these protuberances and/or recess is such as set in the scope of 0.1 ~ 10 μm.In addition, the height of these protuberances and/or recess or the degree of depth are such as set in the scope of 0.1 ~ 10 μm.
In the region 30, transmitance material layer 50 with the interface of layer of reflective material 51 do not arrange sag and swell.That is, in the region 30, transmitance material layer 50 is tabular surfaces with the interface of layer of reflective material 51.
Layer 2 such as can be made up of multiple sections (segment) corresponding with region 10,20a, 20b and 30 difference.Or, such as also can pass through with multiple unit constituting layers 2 of rectangular arrangement, and form diffractive grating regions 10 by a part for these unit, region 20a is formed by other parts of these unit, form region 20b by other other parts of these unit, form region 30 by the unit be left.When by multiple unit constituting layer 2, these unit can be used separately as pixel to show picture.Below, the unit forming diffractive grating regions 10 is called " diffraction grating unit ", the unit forming region 20a and 20b is called " light scattering elements ".
When by multiple unit constituting layer 2, if know the visual effect of each unit, then the picture that the easy replacement of the arrangement to them obtains is envisioned.So, can easily determine according to Digital Image Data the unit that each pixel should use.Therefore, now the design of display body 1 becomes easy.
In order to make intersegmental or pixel mesopic vision effect difference, the content of following explanation can be utilized.
First, with reference to accompanying drawing, the visual effect obtained by diffractive grating regions 10 is described.
Fig. 3 be represent be incident to diffraction grating the diffraction light emitted by illumination light and diffraction grating between the figure of an example of relation.
If make illumination light 71 be incident to diffraction grating 11 from the direction vertical with grid stroke with incident angle α ', then diffraction grating 11 penetrates 1 diffraction light 73 of representatively property diffraction light with angle of emergence β.Reflection angle or the angle of emergence α of the normal reflection light (0 diffraction light) 72 of diffraction grating 11 are equal on absolute value with incident angle α ', and relative to normal symmetry (clockwise direction is set to positive dirction by α, β).Angle [alpha] and angle beta the grating constant of diffraction grating 11 is set to d (nm), the wavelength of illumination light 71 is when being set to λ (nm), meets the relation shown in following formula (1).
d＝λ/(sinα-sinβ)(1)
From above-mentioned formula (1), when making white light incidence, the angle of emergence of 1 diffraction light is different according to wavelength difference.That is, diffraction grating 11 has a point light action, and the color of diffractive grating regions 10 changes with seven looks along with change observation place.
In addition, the color that observer feels based on certain observation condition changes according to grating constant.
Such as, be set to diffraction grating 11 and penetrate 1 diffraction light 73 on the direction vertical relative to this grating face.That is, the angle of emergence β being set to 1 diffraction light 73 is 0 °.Now, if the absolute value of the angle of emergence of the incident angle of illumination light 71 and 0 diffraction light 72 is set to α
n, then formula (1) simplifies as follows.
d＝λ/sinα
N(2)
From formula (2), in order to make observer feel certain color, by answer with this Color pair wavelength X, illumination light 71 the absolute value α of incident angle
nbe set as meeting the relation shown in formula (2) with grating constant.Such as, if set wavelength as the white light of 400 ~ 700nm be illumination light 71, by the absolute value α of the incident angle of illumination light 71
nbe set to 45 °, using with the inverse of the spatial frequency of diffraction grating and grating constant is the diffraction grating distributed in the scope of 1800 ~ 1000/mm, then spatial frequency is that the part of 1600/mm degree appears as blueness, and the part of 1100/mm degree appears as redness.Therefore, by making the spatial frequency of diffraction grating between intersegmental or unit different, their Show Color can be made different.
In addition, the spatial frequency of diffraction grating is more little is more easily formed.Therefore, spatial frequency is set to 500 ~ 1600/mm by common diffraction grating for display body mostly.
In the above description, suppose to make illumination light 71 be incident to diffraction grating 11 from the direction vertical with grid stroke.According to this state, if under direction of observation is set to certain state, diffraction grating 11 is rotated around its normal, then the effective value of grating constant changes according to its anglec of rotation.As a result, the color that observer feels changes.In addition, if this anglec of rotation is fully large, then observer cannot feel diffraction light on above-mentioned direction of observation.So, by making the orientation of grid stroke between intersegmental or unit different, their Show Color can be made different, or change this unit looks luminous direction due to diffraction light.
In addition, if make the degree of depth of the groove of formation diffraction grating 11 increase, then diffraction efficiency change.In addition, if make diffraction grating increase relative to the area ratio of section or unit, then the intensity of diffraction light becomes larger.
Therefore, if the spatial frequency of intersegmental or unit chien shih diffraction grating and/or orientation different, then these sections or unit can be made to show different colors, or observable condition can be set.In addition, if the degree of depth defining the groove of diffraction grating 11 at intersegmental or unit chien shih and diffraction grating 11 are different relative at least one party in the area ratio of section or unit, then the brightness of these sections or unit can be made different.So, by utilizing these methods, full-color picture and space image iseikonia can be shown.
Then, with reference to accompanying drawing, the visual effect obtained by light scattering sites 20a and 20b is described.
Fig. 4 is the vertical view that outline represents an example of light scattering sites.
Light scattering sites 20 shown in Fig. 4 comprises multiple light scattering structure 25.These light scattering structure 25 is linearity separately, is multiple protuberance and/or recess that in each light scattering sites 20, direction is consistent.That is, in each light scattering sites 20, light scattering constructs 25 almost parallel arrangements.
In addition, in each light scattering sites 20, light scattering structure 25 also can be not exclusively arranged in parallel.As long as light scattering sites 20 has sufficient light scattering energy anisotropy, in this light scattering sites 20, such as, also can intersect by light scattering the structure length direction of 25 and the light scattering of other parts of the part length direction that constructs 25.Below, among the direction of the main surface parallel with light scattering sites 20, direction light scattering sites 20 being presented minimum light scattering energy is called " direction of orientation ", and direction light scattering sites 20 being presented maximum light scattering energy is called " light scattering axle ".In the present embodiment, due to using the structure of linearity as essential structure, therefore direction of orientation is orthogonal with light scattering axle.
In the light scattering sites 20 shown in Fig. 4, the direction represented by arrow 26 is direction of orientation, and the direction represented by arrow 27 is light scattering axle.Such as, if thrown light on from the vergence direction vertical with direction of orientation 26 to light scattering sites 20, and the light scattering sites 20 that detects by an unaided eye from front, then light scattering sites 20 looks brighter due to its higher light scattering energy.On the other hand, if thrown light on from the vergence direction vertical with light scattering axle 27 to light scattering sites 20, and the light scattering sites 20 that detects by an unaided eye from front, then light scattering sites 20 looks darker due to its lower light scattering energy.
It can thus be appreciated that, such as when from vergence direction light scattering sites 20 thrown light on and detect by an unaided eye from front this light scattering sites 20, if make light scattering sites 20 rotate around its normal direction, then its brightness change.So, such as, when adopting identical structure in the light scattering sites 20a shown in Fig. 1 and light scattering sites 20b and only make the direction of light scattering axle different between 20a and 20b of these regions, when region 20a looks the brightest, region 20b looks darker, when region 20a looks the darkest, region 20b looks brighter.In addition, when region 20b looks the brightest, region 20a looks relatively darker, and when region 20b looks the darkest, region 20a looks brighter.
That is, by making light scattering axle 27 different in region 20a and region 20b, the difference producing lightness between them can be made.Therefore, picture can be shown thus.Especially, by making the differential seat angle of the light scattering axle 27 of region 20a and region 20b enough (although also depend on the size of lighting source, but be such as more than 30 ° in the lighting source general indoor mostly configured on the ceiling) or make respective light scattering anisotropy fully large, the picture that can detect by an unaided eye shown by respective region under observation conditions different respectively.By the light scattering structure using light scattering axle orthogonal as 20a and 20b of light scattering sites, thus the condition can observing the picture shown by respective region becomes diverse condition, reliably can observe respective picture respectively.
The lightness of light scattering sites 20 also can be controlled by additive method.
Such as, the width of light scattering structure 25 is larger, and the light scattering on the direction of light scattering axle 27 can be less.On the other hand, if it is 25 elongated to make light scattering construct, then the light scattering in direction of orientation 26 can diminish.
The shape of light scattering structure 25 also can be all identical in 1 light scattering sites 20.Or 1 light scattering sites 20 also can comprise variform multiple protuberance and/or recess 25.
The design of light scattering energy is easily carried out in the light scattering sites 20 only comprising the light scattering structure 25 of same shape.In addition, this light scattering sites 20 can be carried out high precision by microfabrication devices such as electric wire drawing apparatus or steepers and easily be formed.On the other hand, according to the light scattering sites 20 comprising variform light scattering structure 25, the scattered light in wider angular range with mild light intensity distributions can be obtained.So, the light and shade caused by observation place can be shown and change little and stable white.
In addition, the orientation degree of order of light scattering structure 25 is higher, and the light scattering energy anisotropy of light scattering sites 20 is larger.
In light scattering sites 20, light scattering structure 25 both by configuring regularly to a certain degree, also can configure randomly.Such as, if by light scattering structure 25 and the interval in direction that light scattering axle 27 is parallel be set at random, then the light intensity distributions of the scattered light on vertical with direction of orientation 26 direction becomes mild.Therefore, inhibit the whiteness corresponding to viewing angle or the change of lightness.
In addition, and if the parallel direction of light scattering axle 27 on reduce the interval that light scattering constructs 25, then can make more incident light scattering, therefore, it is possible to strengthen the intensity of scattered light under the condition not making light scattering energy anisotropy worsen.Such as, if the equispaced that the light scattering on the direction parallel with light scattering axle 27 constructs 25 is less than 10 μm, then the light scatter intensity of the good display of visibility can enough be realized.
In addition, if make this equispaced fully little, then when light scattering sites 20 is made up of multiple light scattering elements, the size of light scattering elements can be enough made to be about 100 μm.Now, picture can be shown with the fineness below the resolution of human eye under usual observation condition.That is, the picture of enough high-fineness can be shown.
In FIG, be configured with two light scattering sites 20a and 20b that light scattering axle is roughly orthogonal, but also can configure the different light scattering sites of more than three of light scattering axle.
Fig. 5 ~ Fig. 7 is the vertical view of the example representing the structure that can be used for light scattering sites.In Fig. 5 ~ Fig. 7, white portion corresponds respectively to protuberance or recess.
In the light scattering sites 20 of Fig. 5, light scattering structure 25 arranges in the y-direction.In the light scattering sites 20 of Fig. 6, light scattering structure 25 is along the direction arrangement being rotated counterclockwise 45 ° from y direction.In the light scattering sites 20 of Fig. 7, light scattering structure 25 arranges along the x direction orthogonal with y direction.
Like this, if the light scattering sites of more than three that configuration light scattering axle is different, then such as can carry out gray scale display, or make the change of picture more complicated along with the orientation changing display body 1.Such as, by changing the orientation of display body 1, also picture can be changed in the mode of animation.
Fig. 8 and Fig. 9 is the vertical view of other examples representing the structure that can be used for light scattering sites.
In the light scattering sites 20 of Fig. 8, light scattering structure 25 arranges in the y-direction.In the light scattering sites 20 of Fig. 9, light scattering structure 25 arranges in the x-direction.
Light scattering structure 25 shown in Fig. 8 and Fig. 9 constructs compared with in the of 25 with the light scattering shown in Fig. 5 ~ Fig. 7, and width is wider.Thus, the scattered light emitted by light scattering sites 20 shown in Fig. 8 and Fig. 9 is compared with the scattered light emitted by the light scattering sites 20 shown in Fig. 5 ~ Fig. 7, and the diffusion to the direction vertical with direction of orientation 26 is less.
When the diffusion of scattered light is few, from scattered light grow when determining that position is observed, therefore, for the picture that the light scattering sites 20 shown in the different multiple regions of the width of and light scattering identical by the direction of light scattering axle 26 structure 25, such as Fig. 5 and the light scattering sites 20 shown in Fig. 8 are formed, when observing from the position of regulation, look the picture become with deep or light.
In addition, light scattering sites 20a and 20b shown in Fig. 1 and Fig. 2 is not limited to the light scattering sites 20 shown in Fig. 5 ~ Fig. 7 and Fig. 8 and Fig. 9, can adopt various structure.
As mentioned above, the picture shown by light scattering sites 20a and 20b of Fig. 1 has clear and definite switching effect.That is, two pictures shown by two light scattering sites 20a and 20b with mutually different light scattering axles 27 look and do not mix, and separately can observe clear by naked eyes.In addition, by arranging multiple light scattering sites 20 with different light scattering axles 27, display body 1 can be made to show picture according to the quantity identical with the light scattering axle 27 arranged.Thus, the picture change of the cartoon type caused by the change of observation place can also be produced.
Light scattering structure 25 both can be 2 values (binary) structures in the degree of depth or short transverse, also can be continually varying structure.
The light scattering sites 20 comprising the light scattering structure 25 of 2 value structures can utilize the device with microfabrication ability to manufacture with comparalive ease, easily can also carry out the setting of shape etc.Speckle is recorded on photosensitive material, such as photoresist by utilizing the interference of laser by the light scattering sites 20 comprising the light scattering structure 25 of continually varying structure, can easily manufacture.At the area of part being provided with light scattering structure 25 relative to the area of light scattering sites 20 at 2 values structure time be 50% and be 100% when there is no an even surface when continually varying constructs, the light scattering in light scattering sites 20 construct 25 scattering efficiency the highest.
The layer 2 of the display body 1 shown in Fig. 1 and Fig. 2 comprises two mutually different light scattering sites 20a and 20b of light scattering axle.Character " 9 " shows as picture by light scattering sites 20a, and the edge of this character " 9 " shows as picture by light scattering sites 20b in addition.
In the display body 1 of Fig. 1, the respective light scattering axle of light scattering sites 20a and 20b is mutually orthogonal.As mentioned above, when from the direction observation light scattering sites 20a or 20b vertical relative to direction of orientation 26, display light spreads, and therefore regardless of viewing angle, can both observe bright picture.Therefore, if observe display body 1 from the direction that the direction of orientation 26 with light scattering sites 20a is vertical, then only character " 9 " looks comparatively white, and edge looks darker.On the other hand, if observe display body 1 from the direction that the direction of orientation 26 with light scattering sites 20b is vertical, then only the edge of " 9 " looks whiter.That is, the display body 1 of Fig. 1 is owing to comprising two mutually different light scattering sites 20a and 20b of light scattering axle, and therefore the light and shade of region 20a and 20b reverses according to the orientation of display body 1.
Display body 1 shown in Fig. 1 and Fig. 2 due to mutually different two light scattering sites 20a and 20b in the direction that comprises light scattering axle 27, therefore, it is possible to observe from the different directions corresponding from scattering axle the picture predetermined respectively.Although the change of the picture that this position is according to the observation observed also can be showed by diffractive grating regions 10, different from the performance of seven colours of diffractive grating regions 10, within the scope of wider observation place, look it is almost uniform whiteness.
In addition, the above transmission material layer 50 having enumerated Fig. 2 as an example does not have the situation of the absorption band of specifying in visibility region, describes the scattered light of white.When transmission material layer 50 comprises dyestuff etc., the scattered light of light scattering sites 20 is the scattered light of the wavelength components of transmission transmission material layer 50.
Display body 1 shown in Fig. 1 and Fig. 2, except diffractive grating regions 10 and light scattering sites 20a and 20b, also comprises the region 30 not arranging sag and swell.Region 30 is except observing the position of normal reflection light, even if change observation place, the picture felt also does not change.When layer 2 transparent material layer 50 as shown in Figure 2 and layer of reflective material 51 are formed, region 30 presents the metallic appearance of layer of reflective material 51.
Namely, display body 1 shown in Fig. 1 and Fig. 2 comprehensively possesses: have the diffractive grating regions 10 of the visual effect that performance greatly changes along with observation place, have mutually orthogonal light scattering axle 27 and have the switching of picture and two light scattering sites 20a and 20b of stable observing effect and performance not along with the region 30 of viewpoint change, therefore, this display body 1 has complicated visual effect.And then, in display body 1 shown in Fig. 1 and Fig. 2, each region independently shows picture, therefore with show compared with the display body of picture by means of only the one party in diffractive grating regions 10 or light scattering sites 20a and 20b, there is more complicated visual effect, can very easily and reliably carry out, with the difference of similar product, which thereby enhancing antifalse effect.
Display body shown in Fig. 1 and Fig. 21, can the different various pictures such as Show Color and lightness by each of suitably design diffractive grating regions 10 and light scattering sites 20a and 20b.Therefore, it is possible to the color of the image desirably shown and lightness are to design diffractive grating regions 10 and light scattering sites 20a and 20b.In addition, in the display body 1 shown in Fig. 1 and Fig. 2, diffraction grating 11 and light scattering structure 25 are all made up of concavo-convex, therefore copy by means of only concavo-convex, just can critically carry out being easy to manufacture under the state of the structure both maintaining and position relationship and function.Enhance the reliability for the display body as genuine piece using the display body 1 of high precision manufacture, enhance the reliability that the true and false judges.
And then, the display body 1 shown in Fig. 1 and Fig. 2 owing to comprising diffractive grating regions 10 and light scattering sites 20a and 20b, therefore as performance change according to observation place.This visual effect cannot be reproduced by this display body 1 of color dub.In addition, even if the forgery/imitation to the display body 1 shown in Fig. 1 and Fig. 2 will be carried out, be also difficult to correctly reproduce the sag and swell of the precision with diverse two kinds of effects.And, even if the optical reproducing method by make use of the diffraction light from diffraction grating 11, also cannot the light scattering structure of reconstructed chart 1 and the display body shown in Fig. 21.
Therefore, the visual effect of feature based and the difficulty of forgery/imitation, the display body 1 shown in Fig. 1 and Fig. 2 as the high security optical media that easily can carry out true and false judgement, such as, goes for securities class and various card, passport etc.
In addition, in the display body 1 shown in Fig. 1 and Fig. 2, also diffractive grating regions 10 can be omitted.The display body eliminating diffractive grating regions 10 comprehensively possesses two light scattering sites 20a and 20b of switching and the stable observing effect with picture and shows not according to the region 30 of viewpoint change, therefore has complicated visual effect.In this display body, each region independently shows picture, therefore with show compared with the display body of picture by means of only 1 light scattering sites 20a or 20b, there is more complicated visual effect, can very easily and reliably carry out, with the difference of similar product, which thereby enhancing antifalse effect.
Then, other embodiments of the present invention are described.
Figure 10 is the vertical view that outline represents the display body of the second embodiment of the present invention.
Display body 1 shown in Figure 10 is except have employed following structure, identical with the display body 1 described with reference to Fig. 1 and Fig. 2.That is, in the display body 1 shown in Figure 10, diffractive grating regions 10 and light scattering sites 20a and 20b are made up of multiple unit of rectangular arrangement respectively.In other words, in the display body 1 shown in Figure 10, in regional, multiple unit display picture is used as pixel.
In the display body 1 shown in Figure 10, diffractive grating regions 10 comprises the different multiple diffraction grating unit 12a ~ 12f in orientation.
In Fig. 10, the diffraction grating unit that addition of identical reference marks due to the orientation of diffraction grating roughly the same, so the diffraction light that injection is corresponding with respective orientation.Therefore, the diffraction grating unit display picture that addition of identical reference marks is used as having the pixel of identical visual effect.On the other hand, diffraction grating unit 12a ~ 12f is different due to the orientation of respective diffraction grating, therefore has different visual effects.That is, the display body 1 of Figure 10 comprises six diffractive grating regions with different visual effects.Therefore, the diffractive grating regions of the display body 1 of Figure 10 has the different and changeful performance of condition according to the observation.
In addition, in the display body 1 shown in Figure 10, light scattering sites 20a comprises the direction of orientation multiple light scattering elements 21as parallel with the direction being rotated counterclockwise 45 ° from x direction of light scattering structure.Multiple light scattering elements 21a as pixel, is formed the picture of " 9 " by light scattering sites 20a.On the other hand, light scattering sites 20b comprises the direction of orientation multiple light scattering elements 21bs orthogonal with the direction of orientation that the light scattering included by light scattering elements 21a constructs of light scattering structure.Multiple light scattering elements 21b as pixel, is formed the picture picture of " 9 " shown by the 20a of light scattering sites being carried out to deburring by light scattering sites 20b.
The direction of orientation that light scattering sites 20a and 20b of the display body 1 shown in Figure 10 constructs due to the light scattering formed in light scattering elements 21a and 21b in these regions is orthogonal, so mutual light scattering axle is orthogonal.Therefore, if throw light on from the display body 1 of direction to Figure 10 being rotated counterclockwise 45 ° relative to x direction and observe from front, then in the 20b of light scattering sites, observe stronger scattered light, on the other hand, in the 20a of light scattering sites, do not observe scattered light or observe very faint scattered light, therefore the picture of " 9 " looks darker.In addition, if the display body 1 of direction to Figure 10 of 45 ° is thrown light on and observes from front from turning clockwise relative to x-axis direction, then in the 20a of light scattering sites, observe stronger scattered light, in the 20b of light scattering sites, do not observe scattered light or observe very faint scattered light, the picture therefore showing " 9 " looks compared with looking darker picture around Bai Erqi.That is, often will the angle half-twist of illumination, the picture of " 9 " reverses with the light and shade of picture around it.
The size of diffraction grating unit 12a ~ 12f and light scattering elements 21a and 21b is preferably less than 300 μm.Especially, when display body 1 is less, considering the situation near observing, being preferably less than 100 μm.If unit is the size of below these numerical value, then under common observation condition, cannot with the naked eye discrimination unit, the raising of antifalse effect and aesthetic appearance, ornamental raising can be realized.
Diffraction grating unit 12a ~ 12f and light scattering elements 21 and 21b are preferably formed objects.By the unit of formed objects is used as pixel, be easy to the picture making display body 1 according to view data.
As mentioned above, the diffractive grating regions 10 that display body 1 shown in Figure 10 is formed due to the mutually different diffraction grating unit 12a ~ 12f in orientation and two light scattering sites 20a and 20b be made up of respectively light scattering elements 21a and 21b with mutually orthogonal light scattering axle 27 separately show picture, therefore with by means of only 1 in diffractive grating regions 10 and light scattering sites 20a with 20b or 2 display bodies showing picture compare, there is more complicated visual effect.Thereby, it is possible to very easily and reliably carry out the difference with similar product.
In addition, diffraction grating unit 12a ~ 12f and light scattering elements 21a and 21b is formed picture as pixel by the display body 1 shown in Figure 10, therefore, it is possible to carry out the configuration of diffraction grating or light scattering structure easily according to each pixel according to Digital Image Data, the picture of display body 1 can be easily made to become complexity/high-precision picture.Thereby, it is possible to raising visual effect, and improve antifalse effect further.
In addition, in the display body 1 shown in Figure 10, diffraction grating 11 and light scattering structure 25 are all made up of concavo-convex, therefore copy by means of only concavo-convex, just can, under the state of the structure both maintaining and position relationship and function, critically carry out being easy to manufacture.As mentioned above, enhance the reliability for the display body as genuine piece using the display body 1 of high precision manufacture, enhance the reliability that the true and false judges.
And then, even if the forgery/imitation of the display body 1 shown in Figure 10 will be carried out, be also difficult to the structure correctly reproducing the precision with these visual effects.In addition, even if the optical reproducing method by make use of the diffraction light from diffraction grating 11, the light scattering structure of the display body 1 shown in Figure 10 also cannot be copied.
Therefore, the visual effect of feature based and the difficulty of forgery/imitation, the display body 1 shown in Figure 10 as the high security optical media that easily can carry out true and false judgement, such as, can be applied flexibly in securities class or various card, passport etc.
Then, the variation of the display body 1 shown in Figure 10 is described.
Figure 11 is the vertical view of the variation of the display body shown in diagrammatic representation 10.
Display body 1 shown in Figure 11 is except adopting following structure, identical with the display body 1 described with reference to Figure 10.That is, the layer 2 of the display body shown in Figure 11 comprises two mutually orthogonal light scattering sites 20a and 20b of two mutually different diffractive grating regions 10a and 10b of orientation, light scattering axle and does not arrange the region 30 of sag and swell.
In the display body 1 shown in Figure 11, the diffractive grating regions 10a be made up of diffraction grating unit 12a forms the picture of " 0 ", the diffractive grating regions 10b be made up of diffraction grating unit 12b forms the picture of ": ", the light scattering sites 20a be made up of light scattering elements 21a forms the picture of " 1 ", and the light scattering sites 20b be made up of light scattering elements 21b forms the picture of " 9 ".
In the display body 1 shown in Figure 11, the light scattering axle of light scattering sites 20a and light scattering sites 20b is almost orthogonal.Therefore, only observe the picture of a side in certain observation place, and only observe the picture of the opposing party in other observation places.That is, the picture of the both sides of light scattering sites 20a and light scattering sites 20b can not be observed.
In addition, in the display body 1 shown in Figure 11, the orientation of the diffraction grating of diffractive grating regions 10a and diffractive grating regions 10b is mutually different.Therefore, diffractive grating regions 10a looks from diffractive grating regions 10b, the observation place sending seven glories looks that the observation place sending seven glories is different.
And then in the display body 1 of Figure 11, in diffractive grating regions 10b and light scattering sites 20b, inner sag and swell is roughly towards identical direction, and therefore position is different according to the observation, can observe the picture of both, or only observe the picture of one party.
Display body 1 shown in Figure 11 comprise both do not arrange diffraction grating do not arrange yet light scattering structure region 30.The performance in this region 30 not change in location according to the observation.
As mentioned above, two diffractive grating regions 10a and 10b that display body 1 shown in Figure 11 is formed respectively due to diffraction grating unit 12a and 12b mutually different by orientation and two light scattering sites 20a and 20b be made up of respectively light scattering elements 21a and 21b with mutually orthogonal light scattering axle 27 separately show picture, therefore, compared with the display body of more than 1 that eliminates in these regions, there is more complicated visual effect.Thereby, it is possible to very easily and reliably carry out the difference with similar product.
In addition, in the display body 1 shown in Figure 10, diffraction grating 11 and light scattering structure 25 are all made up of concavo-convex, therefore copy by means of only concavo-convex, just can, under the state of the structure both maintaining and position relationship and function, critically carry out being easy to manufacture.Stably enhance the reliability for the display body as genuine piece using the display body 1 of high precision manufacture, enhance the reliability that the true and false judges.
And then, even if the forgery/imitation of the display body 1 shown in Figure 11 will be carried out, be also difficult to the structure correctly reproducing the precision with these visual effects.In addition, even if the optical reproducing method by make use of the diffraction light from diffraction grating 11, the light scattering structure of the display body 1 shown in Figure 11 also cannot be copied.
Therefore, the visual effect of feature based and the difficulty of forgery/imitation, the display body 1 shown in Figure 11 as the high security optical media that easily can carry out true and false judgement, such as, can be applied flexibly in securities class or various card, passport etc.
Display body 1 described above also except light scattering sites 20a and 20b etc. of light scattering structure 25 comprising wire, can have and comprises the protuberance of other shapes and/or the light scattering sites of recess further.
Figure 12 and Figure 13 is the stereographic map that outline represents the example of the protuberance of the shape comprised beyond wire and/or the light scattering sites of recess.
The light scattering sites 20 ' of Figure 12 comprises multiple protuberance 25a of rectangular shape.The direction of orientation 26 ' of multiple protuberance 25a is almost parallel with x direction.The light scattering sites 20 ' of Figure 13 comprises multiple protuberance 25b of elliptical shape.The direction of orientation 26 ' of multiple protuberance 25b is almost parallel with x direction.
In the light scattering sites 20 ' of Figure 12 and Figure 13, light scattering axle 27 ' is almost parallel with y direction.But, protuberance 25a and 25b included by the light scattering sites 20 ' of Figure 12 and Figure 13 is smaller due to the size in x direction and the size in y direction, such as be in the scope of 1 ~ 5, therefore compared with the protuberance of above-mentioned wire and/or recess 25, light scattering energy anisotropy is less.Thus, although scattered light can be observed in the light scattering sites 20 ' of Figure 12 and Figure 13, the change of the performance corresponding with observation place is less.
Therefore, by adding this light scattering sites 20 ', the visual effect of display body 1 can be made more complicated.
Above-mentioned display body 1 also can be arranged on the article such as printed article and be used as the use of false proof media.
Figure 14 is the vertical view that outline represents an example to the labeled article that display body supports.
Labeled article 100 shown in Figure 14 is magnetic cards.This labeled article 100 comprises the display body 1 of the base material 90 and supporting on base material 90 implementing printing.This display body 1 included by labeled article 100 is the display body 1 of above-mentioned explanation.
Labeled article 100 shown in Figure 14 can the visual confirmation picture with the visual effect of diffractive grating regions and the display body 1 of the visual effect of multiple light scattering sites and the display picture that forms such a multiple key elements different by optical characteristics that the printing that card 90 is implemented produces, is therefore easy to carry out the difference with non-genuine piece.Forgery and the imitation of display body 1 are difficult as mentioned above, therefore can expect the antifalse effect for labeled article 100.
The labeled article of Figure 14 is a kind of mode of the Application Example of display body 1, and the Application Example of display body 1 is not limited to the mode of Figure 14.Such as, when display body 1 being applicable to the such article of printed article, also can copy in paper under the mode being called as fiber (thread) (also referred to as band, silk, filiform, safe strap etc.) into.In addition, display body 1 as shown in Figure 2, can comprise adhesive coating 52, is suitable for therefore, it is possible to be easily attached on various article.
In addition, labeled article may not be printed matter.That is, display body 1 also can be bearing on the senior article such as artistic products.
Display body 1 also can be used as false proof beyond object.Such as, toy, study teaching material or ornament etc. can be also used as.
To those skilled in the art, be easy to be further improved and be out of shape.Therefore, the present invention, in it is wider, should not be defined in the specific record or representational mode recorded at this.Therefore, in the real meaning not departing from the concept included by the present invention of the claim of adding and its full scope of equivalents defined or scope, various distortion can be carried out.
Claims (14)
1. a display body, comprise transmitance material layer and layer of reflective material, above-mentioned layer of reflective material covers the back side of above-mentioned transmitance material layer, the interface that above-mentioned transmitance material layer and above-mentioned layer of reflective material directly connect is provided with sag and swell, above-mentioned layer of reflective material covers in the above-mentioned back side of above-mentioned transmitance material layer, at least shown picture by above-mentioned sag and swell whole region
Described region possesses and is provided with the protuberance of the consistent multiple linearities of length direction and/or multiple light scattering sites of recess separately, and the above-mentioned length direction of above-mentioned multiple light scattering sites is mutually different,
The multiple light scattering sites of two or more in above-mentioned multiple light scattering sites that above-mentioned length direction is mutually different is mutually adjacent.
2. display body as claimed in claim 1, wherein,
Above-mentioned multiple light scattering sites shows picture respectively, and these pictures can be distinguished mutually by naked eyes.
3. display body as claimed in claim 1, wherein,
Each of above-mentioned multiple light scattering sites comprises the arrangement of the multiple unit being respectively equipped with above-mentioned multiple protuberance and/or recess.
4. display body as claimed in claim 3, wherein,
Above-mentioned multiple light scattering sites at least one in, the above-mentioned multiple unit included by this light scattering sites comprises the length of above-mentioned multiple protuberance and/or recess and/or the mutually different unit of width.
5. display body as claimed in claim 1, wherein,
Above-mentioned multiple light scattering sites at least one in, the protuberance of above-mentioned multiple linearity and/or recess random arrangement.
6. display body as claimed in claim 1, wherein,
Above-mentioned multiple light scattering sites at least one in, the above-mentioned protuberance of multiple linearity and/or the length of recess and width equal.
7. display body as claimed in claim 1, wherein,
Above-mentioned multiple light scattering sites at least one in, the equispaced of above-mentioned multiple protuberance and/or recess is less than 10 μm.
8. display body as claimed in claim 1, wherein,
Above-mentioned multiple light scattering sites comprises two mutually orthogonal light scattering sites of above-mentioned length direction.
9. display body as claimed in claim 1, wherein,
Also possess diffractive grating regions, this diffractive grating regions is provided with the embossment structure defining diffraction grating.
10. display body as claimed in claim 9, wherein,
Each of above-mentioned multiple light scattering sites comprises the arrangement of the multiple unit being respectively equipped with above-mentioned multiple protuberance and/or recess,
Above-mentioned diffractive grating regions comprises the arrangement of the multiple unit being respectively equipped with above-mentioned embossment structure.
11. display bodies as claimed in claim 10, wherein,
Above-mentioned multiple light scattering sites at least one in, the above-mentioned multiple unit included by this light scattering sites comprises: the density of raised part and/or recess, size, shape and the degree of depth or height and be provided with the part of raised part and/or the recess unit mutually different relative at least one in the area ratio of said units;
Above-mentioned multiple unit included by above-mentioned diffractive grating regions comprises: define the unit that the spatial frequency of the groove of above-mentioned diffraction grating, orientation and the degree of depth or height and above-mentioned diffraction grating are mutually different relative at least one in the area ratio of said units.
12. display bodies as claimed in claim 1, wherein,
Also possess that to be provided with flat shape be circular, oval or polygonal multiple protuberance and/or recess light scattering sites.
13. display bodies as claimed in claim 1, wherein,
Above-mentioned layer of reflective material is the reflectance coating or the Transflective film that cover the above-mentioned back side.
14. 1 kinds of labeled articles, possess the display body described in a certain item of claim 1 ~ 13 and support the article of above-mentioned display body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510630039.6A CN105158830B (en) | 2008-04-18 | 2008-04-18 | Display body and labeled article |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510630039.6A CN105158830B (en) | 2008-04-18 | 2008-04-18 | Display body and labeled article |
| CN2008801248346A CN101910876A (en) | 2008-04-18 | 2008-04-18 | Labeling material and labeled goods item |
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| CN2008801248346A Division CN101910876A (en) | 2008-04-18 | 2008-04-18 | Labeling material and labeled goods item |
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| CN105158830A true CN105158830A (en) | 2015-12-16 |
| CN105158830B CN105158830B (en) | 2017-12-05 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109410740A (en) * | 2018-10-29 | 2019-03-01 | 温州立可达印业股份有限公司 | A kind of cigarette antifalse pulling wire and its production technology |
| CN111239878A (en) * | 2018-11-09 | 2020-06-05 | 英属开曼群岛商音飞光电科技股份有限公司 | Grating plate device |
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| JP3458470B2 (en) * | 1994-08-22 | 2003-10-20 | 凸版印刷株式会社 | Diffraction grating pattern |
| JP2002365439A (en) * | 2001-06-08 | 2002-12-18 | Toyota Industries Corp | Light guiding body and liquid crystal display device |
| JP2007086098A (en) * | 2005-09-20 | 2007-04-05 | Asahi Kasei Chemicals Corp | Optical sheet and liquid crystal display device |
| CN101361026B (en) * | 2006-09-27 | 2013-07-24 | 凸版印刷株式会社 | Optical device, labeled article, optical kit and discrimination method |
| JP5066902B2 (en) * | 2006-11-30 | 2012-11-07 | 凸版印刷株式会社 | Optical sheet |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109410740A (en) * | 2018-10-29 | 2019-03-01 | 温州立可达印业股份有限公司 | A kind of cigarette antifalse pulling wire and its production technology |
| CN111239878A (en) * | 2018-11-09 | 2020-06-05 | 英属开曼群岛商音飞光电科技股份有限公司 | Grating plate device |
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