JP2011194837A - Image-displaying body and labeled article - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an image-displaying body that displays an image having high definition image quality and where the manipulation of a recorded image is difficult.SOLUTION: This image-displaying body 22 includes an intermediate layer 229 of light transmitting quality which has first and second principal planes, a first image displaying section 220a which is arranged on the first principal plane and displays first information regarding a particular object as a first image in an object color and a second image-displaying section 220b which is arranged on the second principal plane and displays second information regarding the object as a second image in a structural color derived from a relief structure.

Description

  The present invention relates to an image display technique that can be used for personal authentication, for example.

  Many personal authentication media such as passports and ID (identification) cards use facial images to enable visual personal authentication.

  For example, in a passport, conventionally, photographic paper on which a face image is printed is pasted on a booklet. However, such passports may be tampered with by reprinting photographic prints.

  For these reasons, in recent years, there is a tendency to digitize facial image information and reproduce it on a booklet. As this image reproduction method, for example, a thermal transfer recording method using a transfer ribbon has been studied.

  However, recently, thermal transfer recording type printers using sublimation dyes or colored thermoplastic resins are widely used. Considering this situation, it is not always difficult to remove a face image from a passport and record another face image on the face image.

  Patent Document 1 describes that a face image is recorded by the method described above, and a face image is recorded thereon using fluorescent ink. Patent Document 2 describes that a face image is recorded using an ink containing a colorless or light-colored fluorescent dye and a colored pigment. Further, Patent Document 3 describes that a normal face image and a face image formed using a pearl pigment are arranged side by side.

  When these technologies are applied to a passport, the alteration becomes more difficult. However, a face image recorded using a fluorescent material cannot be observed unless a special light source such as an ultraviolet lamp is used. In addition, although a face image formed using a pearl pigment can be visually recognized with the naked eye, it is difficult to form a high-definition image using this because the pearl pigment has a large particle size.

JP 2000-141863 A JP 2002-226740 A Japanese Patent Laid-Open No. 2003-170685

  An object of the present invention is to realize an image display body that displays a high-definition image and in which it is difficult to alter the recorded image.

  According to a first aspect of the present invention, there is provided a light-transmitting intermediate layer having first and second main surfaces, and a first information regarding a certain object. A first image display section that displays as one image; and a second image display section that is provided on the second main surface and displays second information related to the object as a second image of a structural color derived from the relief structure. An image display body provided.

  The second aspect of the present invention is the image display body according to the first aspect, wherein the object is a living body, and each of the first and second information is biological information.

  According to a third aspect of the present invention, the first image display unit displays a face image as the first image, and the second image display unit displays a face image as the second image. Is the body.

  According to a fourth aspect of the present invention, the living body is a person, and the image display body is an image display body according to the second or third aspect used for personal authentication.

  According to a fifth aspect of the present invention, the second image display unit faces the second image display unit with the intermediate layer interposed therebetween, and opens at a position corresponding to the second image display unit and in a shape corresponding to the second image display unit. The image display body according to any one of the first to fourth side surfaces further including a third image display unit that displays an image of a light source color when irradiated with excitation light.

  A sixth aspect of the present invention is provided on the first main surface, opens at a position corresponding to the second image display unit and in a shape corresponding to the second image display unit, and a background of the second image Any one of the first to fourth aspects further comprising a third image display unit for displaying the background of the second image as an image of the light source color when irradiated with excitation light. An image display body according to the above.

  A seventh aspect of the present invention is provided on the second main surface and opens at a position corresponding to the first image display unit and in a shape corresponding to the first image display unit, and the background of the first image Is an image display body according to any one of the first to sixth aspects, further including a fourth image display unit that displays a structural color image.

  An eighth aspect of the present invention is the image display according to any one of the first to seventh aspects, wherein the second image display unit includes a relief structure that emits diffracted light, and displays the second image by the diffracted light. Is the body.

  According to a ninth aspect of the present invention, in the image display according to any one of the first to seventh aspects, the second image display unit includes a relief structure that emits scattered light, and displays the second image by the scattered light. Is the body.

  In a tenth aspect of the present invention, the intermediate layer includes at least one selected from the group consisting of a hologram, a diffraction grating, an infrared absorption layer, a fluorescent layer, and a printing pattern displaying an object color. An image display body according to any one of the ninth aspect.

  The eleventh aspect of the present invention further includes a light-transmitting protective layer facing the intermediate layer with the first or second image display portion interposed therebetween, the protective layer comprising a hologram, a diffraction grating, an infrared ray An image display according to any one of the first to tenth aspects including one or more selected from the group consisting of an absorption layer, a fluorescent layer, and a print pattern for displaying an object color.

  A twelfth aspect of the present invention is a labeled article comprising the image display body according to any one of the first to eleventh aspects and a base material supporting the image display body.

  A thirteenth aspect of the present invention is the labeled article according to the twelfth aspect, wherein the substrate is a card substrate or a booklet.

  A fourteenth aspect of the present invention is a labeled article according to the twelfth or thirteenth aspect used for personal authentication.

  According to the present invention, it is possible to realize an image display body that displays a high-definition image and in which it is difficult to tamper with the recorded image.

  The image display body according to the first aspect of the present invention includes a first image display unit. The first image display unit displays first information related to a certain target as a first image of an object color. The first image of the object color can be observed under normal illumination conditions and is excellent in visibility.

  The image display body includes a second image display unit in addition to the first image display unit. The second image display unit displays a second image having a structural color derived from the relief structure. When the relief structure is used, an image with higher definition can be displayed as compared with the case where a pearl pigment is used. In addition, such a second image display unit is difficult to fake or falsify itself.

  Moreover, in this image display body, information on the same object is displayed on the first and second image display units. Therefore, in order to rewrite the information about this object into information about another object, each of the first and second image display units must be at least partially removed.

  Further, in this image display body, an intermediate layer is interposed between the first and second image display portions. Therefore, for example, in order to at least partially remove each of the first and second image display portions from the front side or from the back side, the intermediate layer must also be at least partially removed. That is, in order to rewrite each of the first and second information related to the previous target recorded in the image display body with the information of the other target, for example, one of the first and second image display units is removed, Next, it is necessary to at least partially remove the intermediate layer to expose the other of the first and second image display portions, and then remove it. Such processing is impossible or extremely difficult. In addition, an image display body that has been subjected to such processing can be determined relatively easily from an image display body that has not been subjected to such processing by observation with the naked eye.

  Therefore, in addition to displaying a high-definition image, the image display body according to the first aspect is difficult to tamper with the recorded image.

  In the image display body according to the second aspect of the present invention, each of the first and second information is biological information. Biometric information is unique to the individual. Therefore, to use this image display body illegally for other individuals, both the first and second information must be rewritten. Therefore, in this case, it is more difficult to illegally use the image display body than when at least one of the first information and the second information is non-biological information.

  In the image display body according to the third aspect of the present invention, the first and second image display units display face images. The face image is one of images most suitable for visual identification.

  In the image display body according to the fourth aspect of the present invention, the living body is a person, and the image display body is used for personal authentication. Such an application is one of the applications having the greatest utility value of the image display body.

  The image display body according to the fifth aspect of the present invention further includes a third image display unit that faces the second image display unit with an intermediate layer interposed therebetween and displays an image of a light source color when irradiated with excitation light. is doing. Such an image display body displays an image having at least one of a color and a shape that is different from that of normal illumination conditions such as sunlight and indoor illumination light under illumination conditions in which excitation light is illuminated. That is, this image display body gives a more complicated visual effect. In addition, since the intermediate layer is interposed between the second and third image display units, in order to rewrite the image displayed by the second and third patterns, the intermediate layer is added to the second and third patterns. Must be at least partially removed. That is, this image display body is more difficult to falsify information, and is therefore more difficult to illegally use.

  The image display body which concerns on the 6th side surface of this invention is further equipped with the 3rd image display part provided on the 1st main surface. The third image display unit opens at a position corresponding to the second image display unit and in a shape corresponding to the second image display unit, and displays the background of the second image as an object color image, or When the excitation light is irradiated, the background of the second image is displayed as a light source color image. When this configuration is adopted, when only the second image displayed by the second image display unit is falsified, a mismatch in shape or position between the contour of the falsified second image and the opening provided in the third image display unit. It is likely to occur. Therefore, this can be used to confirm that the information has been tampered with.

  The image display body concerning the 7th side of the present invention is further provided with the 4th image display part provided on the 2nd principal surface. The fourth image display unit opens at a position corresponding to the first image display unit and in a shape corresponding to the first image display unit, and displays the background of the first image as a structural color image. Even when this configuration is adopted, when only the first image displayed on the first image display unit is falsified, the contour of the falsified first image and the opening provided in the fourth image display unit do not match in shape or position. It is easy to produce. Therefore, this can be used to confirm that the information has been tampered with.

  The image display body which concerns on the 8th side surface of this invention WHEREIN: A 2nd image display part contains the relief structure which inject | emits a diffracted light, and displays a 2nd image with this diffracted light. Therefore, the color of the second image changes according to the illumination direction, the observation direction, and the like. That is, when this configuration is adopted, a complicated visual effect can be achieved.

  The image display body which concerns on the 9th side surface of this invention WHEREIN: A 2nd image display part contains the relief structure which inject | emits scattered light, and displays a 2nd image with this scattered light. Since the second image display unit displays the second image by scattered light, even when the image display body is attached to, for example, an uneven surface, the effect of the uneven surface on the image quality of the second image is relatively small. small.

  In the image display body according to the tenth aspect of the present invention, the intermediate layer includes at least one selected from the group consisting of a hologram, a diffraction grating, an infrared absorption pattern, a fluorescence pattern, and a print pattern for displaying an object color. Yes. In addition to providing more complex visual effects, such image displays are more difficult to counterfeit or tamper with information.

  The image display body according to the eleventh aspect of the present invention further includes a light-transmitting protective layer facing the intermediate layer with the first or second image display portion interposed therebetween. Such an image display body is unlikely to cause damage to the first and second image display units. The protective layer includes at least one selected from the group consisting of a hologram, a diffraction grating, an infrared absorption pattern, a fluorescent pattern, and a print pattern for displaying an object color. In addition to providing more complex visual effects, such image displays are more difficult to counterfeit or tamper with information.

  The labeled article according to the twelfth aspect of the present invention includes the image display body according to any one of the first to eleventh aspects. Therefore, in this labeled article, in addition to the image display body displaying a high-definition image, it is difficult to falsify the image recorded on the image display body.

  In the labeled article according to the thirteenth aspect of the present invention, the substrate is a card substrate or a booklet. The above labeled articles are typically utilized in such a form.

  The labeled article according to the fourteenth aspect of the present invention is used for personal authentication. Such an application is one of the applications that have the greatest utility value of the labeled article.

The top view which shows roughly the labeled article which concerns on 1 aspect of this invention. Sectional drawing which shows schematically an example of the structure employable for the labeled article shown in FIG. FIG. 2 is an enlarged plan view showing a part of the labeled article shown in FIG. 1. The top view which expands and shows the other part of the labeled article shown in FIG. Sectional drawing which expands and shows a part of labeled article shown in FIG. Sectional drawing which expands and shows the other part of the labeled article shown in FIG. Sectional drawing which shows schematically the other example of the structure employable for the labeled article shown in FIG. Sectional drawing which shows schematically the further another example of the structure employable for the labeled article shown in FIG. Sectional drawing which shows schematically the further another example of the structure employable for the labeled article shown in FIG. Sectional drawing which shows schematically the further another example of the structure employable for the labeled article shown in FIG. Sectional drawing which shows schematically the further another example of the structure employable for the labeled article shown in FIG. Sectional drawing which shows schematically the further another example of the structure employable for the labeled article shown in FIG. Sectional drawing which shows schematically the further another example of the structure employable for the labeled article shown in FIG. Sectional drawing which shows schematically the further another example of the structure employable for the labeled article shown in FIG. Sectional drawing which shows schematically the further another example of the structure employable for the labeled article shown in FIG. Sectional drawing which shows schematically the further another example of the structure employable for the labeled article shown in FIG. The top view which shows roughly an example of the structure employable for the image display part which displays a structural color using light scattering. The perspective view which shows roughly the other example of the structure employable as the image display part which displays a structural color using light scattering. The perspective view which shows schematically the further another example of the structure employable for the image display part which displays a structural color using light scattering. The perspective view which shows roughly an example of the structure employable for the image display part which displays a dark color as a structural color. The figure which shows schematically an example of the manufacturing apparatus which can be used for manufacture of the labeled article shown in FIG. The figure which shows schematically an example of the transfer foil which can be used for manufacture of the labeled article shown in FIG.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In addition, the same referential mark is attached | subjected to the component which exhibits the same or similar function through all the drawings, and the overlapping description is abbreviate | omitted.

FIG. 1 is a plan view schematically showing a labeled article according to an aspect of the present invention.
The labeled article 100 shown in FIG. 1 is a booklet used for personal authentication, specifically a passport. FIG. 1 shows the booklet in an open state.

  The labeled article 100 includes a signature 1 and a cover 2. The X direction and the Y direction are parallel to the main surface of the cover 2 and intersect each other. The Z direction is a direction perpendicular to the X direction and the Y direction. Here, as an example, it is assumed that the X direction and the Y direction are orthogonal to each other.

  The signature 1 is composed of one or more pieces of paper 11. Typically, a print pattern such as a character string and a background pattern is provided on the piece of paper 11. The signature 1 is formed by folding one paper piece 11 or a bundle of a plurality of paper pieces 11 into two. The paper piece 11 may include an IC (integrated circuit) chip in which personal information is recorded, an antenna that enables non-contact communication with the IC chip, and the like.

  The cover 2 is folded in half. The cover 2 and the signature 1 are overlapped so that the signature 1 is sandwiched by the cover 2 with the booklet closed, and are integrated by binding or the like at the positions of the folds.

  The cover 2 displays an image including personal information. This personal information includes personal authentication information used for personal authentication. This personal information can be classified into, for example, biological information and non-biological personal information.

  The biological information is unique to the individual among the characteristics of the biological body. Typically, biometric information is a feature that can be identified by optical techniques. For example, the biometric information is at least one image or pattern of a face, fingerprint, vein, and iris.

  Non-biological personal information is personal information other than biological information. For example, the non-biological personal information is at least one of name, date of birth, age, blood type, gender, nationality, address, permanent address, telephone number, affiliation, and status. The non-biological personal information may include characters input by typing, may include characters input by machine reading a handwriting such as a signature, or may include both of them. .

In FIG. 1, the cover 2 displays images I1a, I1b, I2, I3c, and I3d.
The images I1a and I2 are object color images. Here, the “object color” is a color displayed using light absorption and reflection. Specifically, an “object color” displayed by an object is a color corresponding to an optical property of a material constituting the object, for example, a reflection spectrum or a transmission spectrum.

  The images I1a and I2 are visible when illuminated with white light and observed with the naked eye. One of the images I1a and I2 may be omitted.

  The images I1a and I2 can be composed of, for example, at least one of a dye and a pigment, or a mixture of at least one of a dye and a pigment and a transparent resin. In this case, the images I1a and I2 can be formed by a thermal transfer recording method using a thermal head, an ink jet recording method, an electrophotographic method, or a combination of two or more thereof. Alternatively, the images I1a and I2 can be formed by forming a layer containing a heat-sensitive color former and drawing on this layer with a laser beam. Alternatively, a combination of these methods can be used. At least a part of the image I2 may be formed by a thermal transfer recording method using a hot stamp, a printing method, or a combination thereof.

  The image I1b is a structural color image. Here, the “structural color” is a color displayed using light refraction, diffraction, interference, reflection, or a combination of two or more thereof. Specifically, the “structural color” that an object displays is the optical properties of the material that makes up the object, such as the refractive index spectrum and the absorption spectrum, as well as the structure of the object, such as the surface or interface. The color changes depending on the shape and the thickness and number of layers. The material constituting the object that displays the “structural color” is typically a transparent material, a material that can have a metallic luster, or a combination thereof.

  The “structural color” can be displayed by, for example, a hologram, a diffraction grating, a light scattering structure, or a combination of two or more thereof. Further, the structure formed by irregularly or regularly arranging a plurality of concave portions and / or convex portions has a sufficiently large ratio of depth or height to the width or diameter of the concave portions and convex portions, and When the pitch of the convex portions is sufficiently small, it can have an effect of confining incident light. That is, a low reflectance can be achieved. The “structural color” may be displayed by such a structure or a combination of such a structure and one or more of a hologram, a diffraction grating and a light scattering structure. Here, as an example, it is assumed that the image I1b is an image displayed by the diffraction grating. As will be described in detail later, the image I1b is formed by, for example, a thermal transfer recording method using a thermal head.

  The images I1a and I1b include face images of the same person. The face image included in the image I1a and the face image included in the image I1b may be the same or different. The face image included in the image I1a and the face image included in the image I1b may have the same or different dimensions. Each of the images I1a and I1b may include other biological information instead of the face image, and may further include biological information other than the face image in addition to the face image.

  The image 11b may include non-biological personal information instead of the biological information, and may further include non-biological personal information in addition to the biological information. The image 11b may further include non-personal information in addition to personal information.

  The image I2 includes non-biological personal information and non-personal information. The image I2 forms, for example, one or more of characters, symbols, codes, and marks.

  At least a part of the image I3c constitutes the background of the image I1a. The image I3c is, for example, an object color image or a structural color image. Here, as an example, it is assumed that the image I3c is a structural color image.

  At least a part of the image I3d constitutes the background of the image I1b. The image I3d is, for example, an object color image or a structural color image. Here, as an example, it is assumed that the image I3d is an object color image.

Next, the structure of the cover 2 will be described with reference to FIGS.
FIG. 2 is a cross-sectional view schematically showing an example of a structure that can be employed in the labeled article shown in FIG. FIG. 3 is an enlarged plan view showing a part of the labeled article shown in FIG. 4 is an enlarged plan view showing another portion of the labeled article shown in FIG. FIG. 5 is an enlarged cross-sectional view of a part of the labeled article shown in FIG. 6 is an enlarged cross-sectional view of another portion of the labeled article shown in FIG.

  In FIG. 3, the structure of the portion of the cover 2 corresponding to the images I1a and I3c is depicted. Further, FIG. 4 shows the structure of the portion of the cover 2 corresponding to the images I1b and I3d. 5 and 6 respectively illustrate a structure that includes a portion that displays the image I1b of the cover 2 and a structure that includes a portion that displays the image I3c of the cover 2.

As shown in FIG. 2, the cover 2 includes a cover main body 21 and an image display body 22.
The cover main body 21 is a base material of the labeled article 100 and is typically a piece of paper. The cover main body 21 may have a single layer structure or a multilayer structure. The cover body 21 is folded in half so as to sandwich the signature 1 in a state where the labeled article 100 is closed.

  The image display body 22 is a layer having a multilayer structure. The image display 22 is affixed to the main surface of the cover body 21 that faces the signature 1 when the labeled article 100 is closed.

  The image display body 22 includes image display units 220a to 220d. The image display units 220a to 220d display the images I1a, I1b, I3c, and I3d shown in FIG. The image display body 22 can further include an image display unit (not shown) that displays the image I2 shown in FIG.

  The image display unit 220a is provided in the area Aa as shown in FIG. The image display unit 220a displays information related to a certain target as an object color image. Here, the image display unit 220a displays the image I1a shown in FIG.

  The image display unit 220a is, for example, a layer containing at least one of a dye and a pigment and an arbitrary resin. The image display unit 220a can be obtained by using, for example, a thermal transfer recording method using a thermal head, an inkjet recording method, an electrophotographic method, or a combination of two or more thereof. In this case, the image display unit 220a includes, for example, a plurality of dots arranged two-dimensionally as shown in FIG.

  As shown in FIG. 2, the image display unit 220b is provided in a region Ab adjacent to the region Aa. The image display unit 220b displays information on the previous object as an image of a structural color derived from the relief structure. Here, the image display unit 220b displays the image I1b shown in FIG.

  The image display unit 220b is, for example, a layer including a diffraction structure forming layer 223b, a reflective layer 224b, and an adhesive layer 225b as shown in FIG. The reflective layer 224b is interposed between the diffraction structure forming layer 223b and the adhesive layer 225b. For example, the image display unit 220b is provided such that the diffraction structure forming layer 223b and the reflection layer 224b are interposed between the adhesive layer 225b and the cover body 21.

  The diffraction structure forming layer 223b is a transparent layer in which a relief type diffraction grating is provided on one main surface. The diffractive structure forming layer 223b includes, for example, first to third parts that illuminate with white light from a specific illumination direction and display different colors when observed from a specific observation direction. The first to third portions are different from each other in at least one of the grating constant of the diffraction grating and the length direction of the groove. Under specific observation conditions, the first to third portions display, for example, blue, green, and red.

  Examples of the material of the diffraction structure forming layer 223b include thermoplastic resins such as polyurethane resin, polycarbonate resin, polystyrene resin, and polyvinyl chloride resin, unsaturated polyester resin, melamine resin, epoxy resin, urethane acrylate, urethane methacrylate, and polyol acrylate. Thermosetting resins such as polyol methacrylate, melamine acrylate, melamine methacrylate, triazine acrylate and triazine methacrylate, mixtures thereof, or thermoformable materials having radically polymerizable unsaturated groups can be used. The diffractive structure forming layer 223b may be formed using a resin having photocurability. Note that the diffractive structure forming layer 223b obtained using such a transparent resin typically has a refractive index in the range of 1.3 to 1.7 for light having a wavelength of 550 nm.

  The reflective layer 224b is formed on the diffraction structure forming layer 223b. The reflective layer 224b covers at least part of the surface of the diffraction structure forming layer 223b where the relief structure is provided. Although the reflective layer 224b can be omitted, when the reflective layer 224b is provided, the visibility of an image displayed by the diffraction structure is improved.

  As the reflective layer 224b, for example, a transparent reflective layer or an opaque reflective layer can be used. Such a reflective layer 224b can be formed by, for example, a vacuum film forming method such as vacuum deposition or sputtering. When the reflective layer 224b includes a resin, the reflective layer 224b may be formed by applying or printing.

  When a transparent reflective layer is used as the reflective layer 224b, even when a pattern such as a pattern and characters is arranged on the back side of the reflective layer 224b, this can be visually recognized from the front side of the image display body 22.

  The transparent reflective layer may have a single layer structure or a multilayer structure. In the latter case, the transparent reflective layer may be designed so as to repeatedly cause reflection interference. As a material of the transparent reflective layer, for example, a transparent dielectric such as zinc sulfide and titanium dioxide can be used.

  A transparent reflective layer having a single-layer structure made of a transparent dielectric typically has a higher refractive index with respect to light having the above-described wavelength than the diffractive structure forming layer 223b. The difference in refractive index is 0.2 or more, for example. When a single-layer structure is adopted for the transparent reflective layer, the thickness thereof is, for example, in the range of 10 nm to 1000 nm.

  A transparent reflective layer having a multilayer structure made of a transparent dielectric typically has a refractive index with respect to light of the above-mentioned wavelength of the layer closest to the diffraction structure forming layer 223b, and has a refractive index with respect to light of this wavelength of the diffraction structure formation layer 223b. Greater than the refractive index. The difference in refractive index is 0.2 or more, for example.

  Alternatively, a metal layer may be used as the transparent reflective layer. As a material of the metal layer, for example, a single metal such as aluminum, tin, copper, silver, gold, and iron, or an alloy thereof can be used. The metal layer is light-shielding when it is thick, but becomes transparent when it is thin. For example, in the case of an aluminum layer having a thickness in the range of 20 to 40 nm, the metallic luster can be observed under certain observation conditions, but the background can be seen through when the observation angle is changed.

  A thicker metal layer can also be used as the transparent reflective layer. For example, a relatively thick metal layer is formed, and a large number of openings having a diameter or width that are difficult to identify with the naked eye are provided. For example, this metal layer is patterned into a halftone dot or a line. Thereby, a transparent reflective layer made of a metal material can be obtained.

  As the material of the opaque metal reflection layer, for example, the materials described above with respect to the metal layer as the transparent reflection layer can be used. The opaque metallic reflective layer is typically not provided with an opening having a diameter or width that is difficult to identify with the naked eye, and has a sufficient thickness to block light.

  A layer containing a transparent resin and particles dispersed therein may be used as the transparent reflective layer or the opaque reflective layer. As the particles, for example, particles made of a metal material such as a single metal and an alloy, or particles made of a transparent dielectric such as a transparent metal oxide and a transparent resin can be used. In the transparent resin, flakes may be dispersed instead of dispersing the particles.

  The adhesive layer 225b is provided on the reflective layer 224b. The adhesive layer 225b is made of, for example, a thermoplastic resin.

  Examples of the material of the adhesive layer 225b include urethane resin, butyral resin, polyester resin, polyvinyl chloride resin such as polyvinyl chloride and vinyl chloride-vinyl acetate copolymer, polyurethane resin, epoxy resin, chlorinated polypropylene, and acrylic resin. , Polystyrene, polyvinylbenzene, styrene-butadiene copolymer resin, vinyl resins such as polyvinyl resins obtained from styrene and alkyl methacrylate (wherein the alkyl group has 2 to 6 carbon atoms), rubber-based materials, or these Mixtures containing two or more can be used.

  For the adhesive layer 225b, higher fatty acids such as wax and stearic acid, metal salts and esters thereof, plasticizers, organic fillers made of organic materials such as polytetrafluoroethylene, polyethylene, silicone resins and polyacrylonitrile, and silica, etc. One or more inorganic fillers made of an inorganic material may be added.

  The adhesive layer 225b may be a component of the image display body 22, or may not be a component of the image display body 22. Moreover, in this labeled article 1, the adhesive layer 225b can be omitted.

  The image display unit 220b can be obtained by, for example, a thermal transfer recording method using a thermal head. In this case, the image display unit 220b is composed of, for example, a plurality of dots arranged two-dimensionally as shown in FIG.

  As shown in FIG. 2, the image display unit 220c is provided in a region Ac adjacent to the regions Aa and Ab and adjacent to the region Aa. The image display unit 220c is opened in a shape corresponding to the image display unit 220a at a position corresponding to the image display unit 220a. The image display unit 220c displays the background of the image displayed by the image display unit 220a as a structural color image, for example, a structural color image derived from the relief structure. Here, the image display unit 220c displays the image I3c shown in FIG.

  The image display unit 220c is, for example, a layer including a diffraction structure forming layer 223c, a reflective layer 224c, and an adhesive layer 225c as shown in FIG. The reflective layer 224c is interposed between the diffraction structure forming layer 223c and the adhesive layer 225c. For example, the image display unit 220 c is provided such that the diffraction structure forming layer 223 c and the reflective layer 224 c are interposed between the adhesive layer 225 c and the cover body 21.

  The diffraction structure forming layer 223c is a transparent layer in which a relief type diffraction grating is provided on one main surface. The diffractive structure forming layer 223c includes, for example, first to third portions that illuminate with white light from a specific illumination direction and display different colors when observed from a specific observation direction. The first to third portions are different from each other in at least one of the grating constant of the diffraction grating and the length direction of the groove. Under specific observation conditions, the first to third portions display, for example, blue, green, and red.

  As the material of the diffraction structure forming layer 223c, for example, the materials described above for the diffraction structure forming layer 223b can be used. Note that the diffractive structure forming layer 223c obtained using such a transparent resin typically has a refractive index of 1.3 to 1.7 with respect to light having a wavelength of 550 nm.

  The reflective layer 224c is formed on the diffractive structure forming layer 223c. The reflective layer 224c covers at least part of the surface of the diffraction structure forming layer 223c provided with the relief structure. Although the reflective layer 224c can be omitted, when the reflective layer 224c is provided, the visibility of the image displayed by the diffraction structure is improved.

  As the reflective layer 224c, for example, those described above for the reflective layer 224b can be used. The reflective layer 224c can be formed by the method described above for the reflective layer 224b, for example.

  The adhesive layer 225c is provided on the reflective layer 224c. The adhesive layer 225c is made of, for example, a thermoplastic resin. As the material for the adhesive layer 225c, for example, the materials described above for the adhesive layer 225b can be used.

  The image display unit 220c can be obtained by, for example, a thermal transfer recording method using a thermal head. In this case, the image display unit 220c includes, for example, a plurality of dots arranged two-dimensionally as shown in FIG.

  As shown in FIG. 2, the image display unit 220d is provided in a region Ab and a region Ad adjacent to the regions Aa to Ac and adjacent to the region Ab. A part of the image display unit 220d is interposed between the image display unit 220b and the cover body 21. In the region Ad, the image display unit 220d displays the background of the image displayed by the image display unit 220b, for example, a fine pattern as an object color image. Here, the image display unit 220d displays the image I3d shown in FIG. The image display unit 220d displays, for example, the same image as the image display unit 220b displays in the region Ab. Alternatively, the image display unit 220d displays an image different from that displayed by the image display unit 220b, for example, a fine pattern, in the region Ab.

  The image display unit 220d is, for example, a layer containing at least one of a dye and a pigment and an arbitrary resin. The image display unit 220d can be obtained, for example, by using a thermal transfer recording method using a thermal head, an inkjet recording method, an electrophotographic method, or a combination of two or more thereof. In this case, the image display unit 220d is composed of, for example, a plurality of dots arranged two-dimensionally as shown in FIG.

  The thickness of the image display portions 220a to 220d is set within a range of 0.1 μm to 2.0 μm, for example. The image display units 220a to 220d may have the same thickness or different thicknesses. In addition, each of the image display units 220a to 220d may have a uniform thickness or may have a non-uniform thickness.

  In each of the image display units 220a to 220d, adjacent dots may be separated from each other or may be in contact with each other. In the latter case, adjacent dots may partially overlap. In this case, as shown in FIGS. 3 and 4, there may be a gap surrounded by a plurality of dots, and such a gap may not exist.

  As shown in FIG. 2, the image display body 22 further includes an intermediate layer 229, a protective layer 227, and an adhesive layer 225 in addition to the image display portions 220 a to 220 d.

  The intermediate layer 229 has first and second main surfaces. Here, the first main surface is the front surface, and the second main surface is the back surface facing the cover body 21. The image forming layers 220b and 220c are located on the front side of the intermediate layer 229. On the other hand, the image forming layers 220 a and 220 d are located on the back side of the intermediate layer 229.

  The intermediate layer 229 is light transmissive. For example, the intermediate layer 229 is a layer that is entirely transparent or partially transparent.

  The intermediate layer 229 is made of a transparent resin, for example. Examples of the material of the intermediate layer 229 include thermoplastic polyacrylate resin, chlorinated rubber resin, vinyl chloride-vinyl acetate copolymer resin, cellulose resin, chlorinated polypropylene resin, epoxy resin, polyester resin, and nitrocellulose. Resins such as a series resin, a thylene acrylate resin, a polyether series resin, and a polycarbonate series resin can be used alone or in combination. The intermediate layer 229 may have a single layer structure or a multilayer structure.

  The thickness of the intermediate layer 229 is, for example, in the range of 1 μm to 20 μm. When the intermediate layer 229 is thin, even if the intermediate layer 229 is partially removed to falsify information, there is a possibility that this cannot be determined by observing the image display body 22 with the naked eye. On the other hand, when the intermediate layer 229 is thick, if a commercially available film is provided in the previous removal portion, it is determined by observing the image display body 22 with the naked eye that the intermediate layer 229 is partially replaced by the commercially available film. It may not be possible.

  The intermediate layer 229 may have optical properties that are uniform in the plane. Alternatively, the intermediate layer 229 may have in-plane non-uniform optical properties.

  The intermediate layer 229 may include one or more selected from the group consisting of a hologram, a diffraction grating, an infrared absorption layer, a fluorescent layer, and a print pattern that displays an object color. Such an intermediate layer 229 can be easily discriminated when it is partially removed. The infrared absorption layer and the fluorescent layer may be a continuous film, and may be patterned in a lattice shape, an island shape, or a stripe shape. In the latter case, the intermediate layer 229 employs a multilayer structure including, for example, a patterned infrared absorption layer or fluorescent layer and a light transmission layer that supports the layer. Here, as an example, it is assumed that the intermediate layer 229 is provided with a relief hologram over the whole.

  The protective layer 227 covers the front surface of the intermediate layer 229. The protective layer 227 and the intermediate layer 229 sandwich the image display portions 220b and 220c.

  The protective layer 227 has optical transparency and is typically transparent. The protective layer 227 suppresses damage to the image display portions 220a to 220d. The protective layer 227 can be omitted.

  The protective layer 227 is made of, for example, a resin such as a thermoplastic resin, a thermosetting resin, and an ultraviolet ray or an electrosetting resin. When the image display body 22 is affixed to the cover main body 21 using a transfer foil, it is preferable to use a thermoplastic resin from the viewpoint of flexibility and foil breakability.

  Examples of this thermoplastic resin include polyacrylate resin, chlorinated rubber resin, vinyl chloride-vinyl acetate copolymer resin, cellulose resin, chlorinated polypropylene resin, epoxy resin, polyester resin, nitrocellulose resin, A thylene acrylate resin, a polyether resin, a polycarbonate resin, or a mixture thereof can be used. In consideration of foil cutting properties and abrasion resistance, this resin includes waxes such as petroleum waxes and plant waxes, higher fatty acids such as stearic acid, metal salts thereof, esters and silicone oils and other lubricants, polytetrafluoroethylene One or more of an organic filler made of an organic material such as polyethylene, silicone resin and polyacrylonitrile, and an inorganic filler made of an inorganic material such as silica may be added.

  The thickness of the protective layer 227 is, for example, in the range of 1 μm to 20 μm. When the protective layer 227 is thin, even if the protective layer 227 is partially removed to falsify information, there is a possibility that this cannot be determined by observing the image display body 22 with the naked eye. On the other hand, when the protective layer 227 is thick, it is determined by observing the image display body 22 with the naked eye that a protective film 227 is partially replaced by a commercially available film when a commercially available film is provided at the previous removal portion. It may not be possible.

  The protective layer 227 may have optical properties that are uniform in the plane. Alternatively, the protective layer 227 may have non-uniform optical properties in the plane.

  The protective layer 227 may include one or more selected from the group consisting of a hologram, a diffraction grating, an infrared absorption layer, a fluorescent layer, and a print pattern that displays an object color. Such a protective layer 227 can be easily discriminated when it is partially removed. The infrared absorption layer and the fluorescent layer may be a continuous film, and may be patterned in a lattice shape, an island shape, or a stripe shape. In the latter case, the protective layer 227 employs a multilayer structure including, for example, a patterned infrared absorption layer or fluorescent layer and a light transmission layer that supports the layer.

  The adhesive layer 225 is interposed between the reflective layer 224 and the cover body 21. The adhesive layer 225 and the intermediate layer 229 sandwich the image display portions 220a and 220d.

  The adhesive layer 225 is made of, for example, a thermoplastic resin. Examples of the material of the adhesive layer 225 include urethane resins, butyral resins, polyester resins, polyvinyl chloride resins such as polyvinyl chloride and vinyl chloride-vinyl acetate copolymers, polyurethane resins, epoxy resins, chlorinated polypropylene, and acrylic resins. , Polystyrene, polyvinylbenzene, styrene-butadiene copolymer resin, vinyl resins such as polyvinyl resins obtained from styrene and alkyl methacrylate (wherein the alkyl group has 2 to 6 carbon atoms), rubber-based materials, or these Mixtures containing two or more can be used.

  For the adhesive layer 225, higher fatty acids such as wax and stearic acid, metal salts and esters thereof, plasticizers, organic fillers made of organic materials such as polytetrafluoroethylene, polyethylene, silicone resins and polyacrylonitrile, and silica, etc. One or more inorganic fillers made of an inorganic material may be added.

  The adhesive layer 225 may be a component of the image display body 22 or may not be a component of the image display body 22. Further, the adhesive layer 225 can be omitted.

  The image display body 22 includes an image display unit 220a. The image display unit 220a displays a face image of a certain person as an object color image. This object-colored face image can be observed under normal illumination conditions, and has excellent visibility.

  Further, the image display body 22 includes an image display unit 220b in addition to the image display unit 220a. The image display unit 220b displays a structural color image derived from the relief type diffraction grating. When the relief structure is used, it is possible to display an image with higher definition than when the pearl pigment is used.

  In the image display body 22, the image display units 220a and 220b display the face images of the same person. The image display unit 220b is difficult to fake or tamper with itself. Therefore, in the labeled article 100 as a genuine product, when the image display units 220a and 220b display face images of the same person, in particular, the same face image, for example, a label that is unknown whether or not it is a genuine product. By comparing the two face images displayed by the attached article, the authenticity of the article can be determined.

  The color of the image I1b displayed by the image display unit 220b changes according to the illumination direction, the observation direction, and the like. The image display unit 220b can display, as the image I1b, a monochromatic flat image, a multicolor flat image, a monochromatic stereoscopic image, a multicolor stereoscopic image, or a combination of two or more thereof. is there. That is, when this configuration is adopted, a complicated visual effect can be achieved.

  In addition, the image display body 22 displays the object color image I1a on the image display unit 220a, and causes the image display unit 220c to display the structural color image I3c as the background of the image I1a. Further, in the image display body 22, a structural color image I1b is displayed on the image display unit 220b, and an object color image I3d is displayed on the image display unit 220d as a background of the image I1b. As described above, when one of the object color image and the structural color image is the other background, the object color image is the background of the object color image, or the structural color image is the background of the structural color image. Compared with the case, a more specific visual effect can be achieved. For example, by displaying an image having a stereoscopic effect as the image I3c on the image display unit 220c, a pseudo stereoscopic image can be displayed in a combination of the images I1a and I3c.

  Further, in the image display body 22, the image display unit 220d is provided not only in the area Ad but also in the area Ab. That is, a part of the image display unit 220d faces the image display unit 220b. Therefore, when the image display unit 220b is light transmissive, the image displayed by the image display unit 220d in the region Ab can be seen through the image display unit 220b. In other words, the image display body 22 simultaneously displays the object color image and the structural color image in the region Ab. That is, by adopting this configuration, a more complicated visual effect can be achieved.

  In addition, biological information such as a face image is unique to the individual. Therefore, in order to illegally use the image display 22 for other individuals, both the images displayed by the image display units 220a and 220b must be rewritten. That is, each of the image display units 220a and 220b must be at least partially removed. Therefore, in this case, it is more difficult to illegally use the image display body 22 than when at least one of these images is non-biological information.

  Further, in this image display body 22, an intermediate layer 229 is interposed between the image display portions 220a and 220b. In the labeled article 100 including the image display body 22, the image display body 22 is supported by the cover body 21 so that the image display unit 220 a is interposed between the intermediate layer 229 and the cover body 21. Therefore, for example, in order to at least partially remove each of the image display portions 220a and 220b from the front side or the back side, the intermediate layer 229 must also be at least partially removed. That is, in order to rewrite the face image recorded on the image display body 22 with the face image of another person, for example, the image display body 22 is peeled off from the cover body 21 and the image display is performed from the back side of the image display body 22. It is necessary to remove the portion 220a and then remove a part of the intermediate layer 229 to expose the image display portion 220b, and then remove it. Alternatively, it is necessary to remove the image display unit 220b from the front side of the image display body 22, and then remove a part of the intermediate layer 229 to expose the image display unit 220a, and then remove it. Such processing is impossible or extremely difficult. Moreover, in particular, when at least one of the protective layer 227 and the intermediate layer 229 includes one or more selected from the group consisting of a hologram, a diffraction grating, an infrared absorption layer, a fluorescent layer, and a print pattern for displaying an object color. The image display body 22 that has been subjected to such processing can be identified relatively easily from the image display body 22 that has not been subjected to such processing.

  In the image display body 22, the image display unit 220c is opened at a position corresponding to the image display unit 220a and in a shape corresponding to the image display unit 220a, and the background of the image I1a is used as the structural color image I3c. indicate. When this configuration is adopted, when only the image I1a displayed by the image display unit 220a is falsified, a mismatch in shape or position is likely to occur between the contour of the falsified image I1a and the opening provided in the image display unit 220c. Therefore, this can be used to confirm that the information has been tampered with.

  Therefore, it is difficult for the image display 22 to alter the recorded image. Therefore, the labeled article 100 including the image display 22 is not easily used illegally.

Various modifications can be made to the labeled article 100.
FIG. 7 is a cross-sectional view schematically showing another example of a structure that can be employed in the labeled article shown in FIG.

  The labeled article 100 shown in FIG. 7 is the same as the labeled article 100 described with reference to FIGS. 1 to 6 except for the following points.

  The image display body 22 of the labeled article 100 does not include the image display portions 220c and 220d. The image display unit 220a is provided not only in the area Aa but also in the area Ac. Further, the image display unit 220b is provided not only in the area Ab but also in the area Ad. That is, the image display unit 220a displays the images I1a and I3c shown in FIG. 1 as the object color images. The image display unit 220b displays the images I1b and I3d shown in FIG. 1 as structural color images.

  When this configuration is adopted, the same effect as that obtained when the configuration described with reference to FIGS. 1 to 6 is employed can be obtained except that the effect of providing the image display units 220c and 220d cannot be obtained. Can do.

  Although the image display unit 220a is provided not only in the region Aa but also in the region Ac here, the image display unit 220a may not be provided in the region Ac. That is, the image I3c shown in FIG. 1 may be omitted. Here, the image display unit 220b is provided not only in the region Ab but also in the region Ad, but the image display unit 220b may not be provided in the region Ad. That is, the image I3d shown in FIG. 1 may be omitted.

  FIG. 8 is a cross-sectional view schematically showing still another example of a structure that can be employed in the labeled article shown in FIG.

  The labeled article 100 shown in FIG. 8 is the same as the labeled article 100 described with reference to FIGS. 1 to 6 except for the following points.

  The image display body 22 of the labeled article 100 does not include the image display unit 220c. The image display unit 220a is provided not only in the area Aa but also in the area Ac. That is, the image display unit 220a displays the images I1a and I3c shown in FIG. 1 as the object color images.

  When this configuration is employed, the same effect as that obtained when the configuration described with reference to FIGS. 1 to 6 is employed can be obtained except that the effect associated with the provision of the image display unit 220c cannot be obtained. .

  FIG. 9 is a cross-sectional view schematically showing still another example of a structure that can be employed in the labeled article shown in FIG.

  The labeled article 100 shown in FIG. 9 is the same as the labeled article 100 described with reference to FIGS. 1 to 6 except for the following points.

  The image display body 22 of the labeled article 100 does not include the image display unit 220c. The image display unit 220a is provided not only in the area Aa but also in the area Ac. That is, the image display unit 220a displays the images I1a and I3c shown in FIG. 1 as the object color images. Further, the image display body 22 of the labeled article shown in FIG. 9 includes an image display section 220d 'that displays the light source color instead of the image display section 220d that displays the object color. The image display unit 220d 'is made of, for example, a phosphor or a mixture containing the phosphor and a transparent resin.

  When this configuration is adopted, the effect associated with providing the image display unit 220c cannot be obtained. In addition, when the image display unit 220d 'is colorless and transparent, the effects associated with providing the image display unit 220d are not obtained. However, the image display unit 220d 'displays a light source color image when irradiated with excitation light such as ultraviolet light. When the image display unit 220d 'is colorless and transparent, for example, the image display unit 220d' can be used as a latent image.

  That is, when the image display unit 220d ′ is colorless and transparent, the configuration described with reference to FIGS. 1 to 6 is adopted except that the effect of providing the image display units 220c and 220d cannot be obtained. The same effect can be obtained. In addition, in this case, a latent image to be visualized by irradiating with excitation light can be recorded using the image display unit 220d '. Therefore, when this labeled article 100 is a genuine article, the labeled article whose identity is unknown or not is illuminated with excitation light, and an image displayed by the article is observed, whereby the article is displayed. Whether or not is a genuine product can be determined.

  Further, when the image display unit 220d ′ is colored and transparent, colorless and opaque, or colored and opaque, the effects associated with the provision of the image display unit 220c are not obtained, except that FIGS. The same effect as that obtained when the configuration described with reference to FIG. In addition, in this case, the image display unit 220d 'displays different colors when illuminated with natural light and when illuminated with excitation light. That is, it provides a complex visual effect.

  FIG. 10 is a cross-sectional view schematically showing still another example of a structure that can be employed in the labeled article shown in FIG.

  The labeled article 100 shown in FIG. 10 is the same as the labeled article 100 described with reference to FIGS. 1 to 6 except for the following points.

  The image display body 22 of the labeled article 100 does not include the image display unit 220c. The image display unit 220a is provided not only in the area Aa but also in the area Ac. That is, the image display unit 220a displays the images I1a and I3c shown in FIG. 1 as the object color images. Further, the image display unit 220d is not provided in the region Ab, and is provided only in the region Ad.

  When this configuration is adopted, the same effects as when the configuration described with reference to FIGS. 1 to 6 is adopted can be obtained except for the following matters. That is, when this configuration is adopted, the effect associated with providing the image display unit 220c cannot be obtained. Further, even if the image display unit 220b is light transmissive, the image display unit 220d is not seen through the image display unit 220b. However, when this configuration is adopted, when the image I1b displayed by the image display unit 220b is falsified, the shape or position of the falsified outline of the image I1b and the opening provided in the image display unit 220d are likely to be mismatched. Therefore, this can be used to confirm that the information has been tampered with.

  FIG. 11 is a cross-sectional view schematically showing still another example of a structure that can be employed in the labeled article shown in FIG.

  The labeled article 100 shown in FIG. 11 is the same as the labeled article 100 described with reference to FIGS. 1 to 6 except for the following points.

  The image display body 22 of the labeled article 100 does not include the image display unit 220d. The image display unit 220b is provided not only in the area Ab but also in the area Ad. That is, the image display unit 220b displays the images I1b and I3d shown in FIG. 1 as structural color images. The image display unit 220c is provided not only in the area Ac but also in the area Aa. The image display unit 220c is light transmissive at least in the region Aa. As shown in FIG. 1, the image display unit 220c displays an image I3c as a background of the image I1a in the region Ab. Then, the image display unit 220c displays, for example, an image similar to that displayed by the image display unit 220a in the area Aa. Alternatively, the image display unit 220c displays an image different from that displayed by the image display unit 220a, such as a fine pattern, in the area Aa.

  When this configuration is adopted, the same effects as when the configuration described with reference to FIGS. 1 to 6 is adopted can be obtained except for the following matters. That is, when this configuration is adopted, the effect associated with providing the image display unit 220d cannot be obtained. However, since a part of the image display unit 220c faces the image display unit 220a, the image displayed by the image display unit 220a in the area Aa can be seen through the image display unit 220c. That is, the image display 22 displays the object color image and the structural color image simultaneously in the area Aa. Therefore, when this configuration is adopted, a more complicated visual effect can be achieved.

  12 is a cross-sectional view schematically showing still another example of a structure that can be employed in the labeled article shown in FIG.

  The labeled article 100 shown in FIG. 12 is the same as the labeled article 100 described with reference to FIGS. 1 to 6 except for the following points.

  The image display body 22 of the labeled article 100 does not include the image display unit 220d. The image display unit 220b is provided not only in the area Ab but also in the area Ad. That is, the image display unit 220b displays the images I1b and I3d shown in FIG. 1 as structural color images.

  When this configuration is employed, the same effect as that obtained when the configuration described with reference to FIGS. 1 to 6 is employed can be obtained except that the effect associated with providing the image display unit 220d cannot be obtained. .

  In the above configuration, the image display units 220a and 220b are arranged on the back side and the front side of the intermediate layer 229, respectively. As will be described below, the image display portions 220a and 220b can be disposed on the front side and the back side of the intermediate layer 229, respectively.

  FIG. 13 is a cross-sectional view schematically showing still another example of a structure that can be employed in the labeled article shown in FIG.

  The labeled article 100 shown in FIG. 13 is the same as the labeled article 100 described with reference to FIGS. 1 to 6 except for the following points.

  The image display body 22 of the labeled article 100 does not include the image display portions 220c and 220d. The image display unit 220a is interposed between the intermediate layer 229 and the protective layer 227, and is provided not only in the region Aa but also in the region Ac. The image display unit 220b is interposed between the intermediate layer 229 and the adhesive layer 225, and is provided not only in the region Ab but also in the region Ad. That is, the image display unit 220a displays the images I1a and I3c shown in FIG. 1 as the object color images. The image display unit 220b displays the images I1b and I3d shown in FIG. 1 as structural color images.

  When this configuration is adopted, the same effect as that obtained when the configuration described with reference to FIGS. 1 to 6 is employed can be obtained except that the effect of providing the image display units 220c and 220d cannot be obtained. Can do.

  14 is a cross-sectional view schematically showing still another example of a structure that can be employed in the labeled article shown in FIG.

  The labeled article 100 shown in FIG. 14 is the same as the labeled article 100 described with reference to FIGS. 1 to 6 except for the following points.

  The image display body 22 of the labeled article 100 does not include the image display unit 220c. The image display unit 220a is interposed between the intermediate layer 229 and the protective layer 227, and is provided not only in the region Aa but also in the region Ac. That is, the image display unit 220a displays the images I1a and I3c shown in FIG. 1 as the object color images. Further, the image display body 22 includes the image display unit 220d 'described with reference to FIG. 9 instead of the image display unit 220d. The image display unit 220d 'is interposed between the intermediate layer 229 and the protective layer 227. Furthermore, in this image display body 22, the image display part 220d is interposed between the intermediate layer 229 and the adhesive layer 225, and is not provided in the region Ab but is provided only in the region Ad.

  When this configuration is employed, the effects associated with providing the image display units 220c and 220d cannot be obtained. However, the image display unit 220d 'displays a light source color image when irradiated with excitation light such as ultraviolet light. When the image display unit 220d 'is colorless and transparent, for example, the image display unit 220d' can be used as a latent image.

  That is, when the image display unit 220d ′ is colorless and transparent, the configuration described with reference to FIGS. 1 to 6 is adopted except that the effect of providing the image display units 220c and 220d cannot be obtained. The same effect can be obtained. In addition, in this case, a latent image to be visualized by irradiating with excitation light can be recorded using the image display unit 220d '. Therefore, when this labeled article 100 is a genuine article, the labeled article whose identity is unknown or not is illuminated with excitation light, and an image displayed by the article is observed, whereby the article is displayed. Whether or not is a genuine product can be determined.

  When the image display unit 220d ′ is colored and transparent, colorless and opaque, or colored and opaque, the configuration described with reference to FIGS. 1 to 6 is adopted except for the following matters. Similar effects can be obtained. That is, when this configuration is adopted, the effect associated with providing the image display unit 220c cannot be obtained. Further, even if the image display unit 220b is light transmissive, the image display unit 220d 'is not seen through the image display unit 220b. However, when this configuration is adopted, when the image I1b displayed by the image display unit 220b is falsified, a mismatch in shape or position is likely to occur between the contour of the falsified image I1b and the opening provided in the image display unit 220d ′. . Therefore, this can be used to confirm that the information has been tampered with.

  FIG. 15 is a cross-sectional view schematically showing still another example of a structure that can be employed in the labeled article shown in FIG.

  The labeled article 100 shown in FIG. 15 is the same as the labeled article 100 described with reference to FIGS. 1 to 6 except for the following points.

  In the image display body 22 of the labeled article 100, the image display portion 220a is interposed between the intermediate layer 229 and the protective layer 227, and the image display portions 220b and 220c are interposed between the intermediate layer 229 and the adhesive layer 225. is doing. The image display body 22 does not include the image display unit 220d. The image display unit 220b is provided not only in the area Ab but also in the area Ad. That is, the image display unit 220b displays the images I1b and I3d shown in FIG. 1 as structural color images.

  When this configuration is employed, the same effect as that obtained when the configuration described with reference to FIGS. 1 to 6 is employed can be obtained except that the effect associated with providing the image display unit 220d cannot be obtained. .

  FIG. 16 is a cross-sectional view schematically showing still another example of a structure that can be employed in the labeled article shown in FIG.

  The labeled article 100 shown in FIG. 16 is the same as the labeled article 100 described with reference to FIGS. 1 to 6 except for the following points.

  In the image display body 22 of the labeled article 100, the image display portions 220a and 220d are interposed between the intermediate layer 229 and the protective layer 227, and the image display portion 220b is interposed between the intermediate layer 229 and the adhesive layer 225. is doing. The image display body 22 does not include the image display unit 220c. The image display unit 220a is provided not only in the area Aa but also in the area Ac. That is, the image display unit 220a displays the images I1a and I3c shown in FIG. 1 as the object color images. In addition, the image display unit 220d has light transparency, for example, at least in the region Ab. Alternatively, the image display unit 220d forms, for example, a lattice, island, or stripe pattern at least in the region Ab.

  When this configuration is adopted, the same effects as when the configuration described with reference to FIGS. 1 to 6 is adopted can be obtained except for the following matters. That is, when this configuration is adopted, the effect associated with providing the image display unit 220c cannot be obtained. However, since a part of the image display unit 220d faces the image display unit 220b, the image displayed by the image display unit 220b in the region Ab can be seen through the image display unit 220d. In other words, the image display body 22 simultaneously displays the object color image and the structural color image in the region Ab. Therefore, when this configuration is adopted, a more complicated visual effect can be achieved.

  In the configuration described above, each of the image display units 220b and 220c includes a relief type diffraction grating. At least one of the image display units 220b and 220c may include a relief hologram instead of the relief diffraction grating. Alternatively, at least one of the image display units 220b and 220c may include a relief hologram in addition to the relief diffraction grating. Alternatively, at least one of the image display units 220b and 220c may be a relief type light scattering structure described below, or a relief type diffraction grating and a relief type hologram, instead of or in addition to the relief type diffraction grating. May be included.

  FIG. 17 is a plan view schematically illustrating an example of a structure that can be employed in an image display unit that displays structural colors using light scattering. FIG. 18 is a perspective view schematically showing another example of a structure that can be employed in an image display unit that displays structural colors using light scattering. FIG. 19 is a perspective view schematically showing still another example of a structure that can be employed in an image display unit that displays structural colors using light scattering.

  In the structure shown in FIG. 17, a plurality of concave portions and / or convex portions RP are provided at the interface IF perpendicular to the Z direction. Each of the concave portions and / or the convex portions RP has a shape extending in the X direction, and is arranged in the Y direction. The concave portion and / or the convex portion RP have a nonuniform length along the X direction, and the positions in the X direction and the Y direction are also irregular.

  For example, when illuminated with white light, this structure exhibits a high light scattering ability in a plane perpendicular to the X direction and a low light scattering ability in a plane perpendicular to the Y direction. Therefore, this structure is suitable when it is desired to limit the emission direction of scattered light, that is, when light scattering anisotropy is desired.

  In this structure, the light scattering anisotropy is changed by changing the arrangement of the concave portions and / or the convex portions RP. For example, when the density in the Y direction of the concave portions and / or the convex portions RP is increased, the light scattering anisotropy increases. Further, when the length of the concave portion and / or the convex portion RP is shortened or the uniformity in the length direction thereof is reduced, the light scattering anisotropy is reduced.

  In FIG. 17, the length direction of the concave portion and / or the convex portion RP is parallel to the X direction. The length direction of the concave portion and / or the convex portion RP may intersect the X direction. In FIG. 17, the length directions of the concave portion and / or the convex portion RP are aligned in one direction. As long as the above-described light scattering anisotropy is obtained, the length directions of the concave portions and / or the convex portions RP may not be aligned in one direction.

  In the structure shown in FIG. 18, the concave portion and / or the convex portion RP has a rectangular parallelepiped shape. Each of the concave portions and / or the convex portions RP has a shape extending in the X direction, and is arranged in the Y direction. The positions of the recesses and / or the protrusions RP are irregular in the X direction and the Y direction, and the dimensions in the X direction and the Y direction are also irregular. Thus, the light scattering anisotropy can also be changed by changing the size of the concave portion and / or the convex portion RP.

  In the structure shown in FIG. 19, the concave portion and / or the convex portion RP has an elliptic cylinder shape. Each of the concave portions and / or the convex portions RP has a shape extending in the X direction, and is arranged in the Y direction. The positions of the recesses and / or the protrusions RP are irregular in the X direction and the Y direction, and the dimensions in the X direction and the Y direction are also irregular. Thus, the light scattering anisotropy can also be changed by changing the shape of the concave portion and / or the convex portion RP.

  A light scattering structure having light scattering anisotropy can be used, for example, for displaying a stereoscopic image. That is, pixels composed of right-eye subpixels and left-eye subpixels are arranged in a matrix. A right-eye light scattering structure is provided in a part of the right-eye sub-pixel to display a parallax image for the right eye. On the other hand, a light scattering structure for the left eye is provided in some of the sub-pixels for the left eye in order to display a parallax image for the left eye. The light-scattering structure for the right eye and the light-scattering structure for the left eye are different in the length direction of the concave portion and / or the convex portion RP. By adopting such a configuration, it is possible to display a stereoscopic image using diffused light under typical diffused light illumination conditions indoors.

  At least one of the image display units 220b and 220c may include a relief structure described below.

  FIG. 20 is a perspective view schematically showing an example of a structure that can be employed in an image display unit that displays a dark color as a structural color.

  In the structure shown in FIG. 20, the interface IF is provided with a plurality of concave portions and / or convex portions RP arranged two-dimensionally. In this example, the concave portions and / or the convex portions RP are arranged in a lattice shape in the X direction and the Y direction. The concave portions and / or the convex portions RP may be arranged in a lattice shape in two directions that intersect diagonally.

  Each of the concave portion and / or the convex portion RP has a tapered shape. The tapered shape is, for example, a semi-spindle shape, a cone shape such as a cone and a pyramid, or a truncated cone shape such as a truncated cone and a truncated pyramid. The side surface of the convex part PR may be composed only of an inclined surface or may be stepped. The tapered shape is useful for reducing the light reflectance of the relief structure shown in FIG. The concave portion and / or the convex portion RP may not have a tapered shape.

  The concave portion and / or the convex portion RP forms a diffraction grating. However, the distance between the centers of the recesses and / or the protrusions RP is shorter than the lattice constant of a normal diffraction grating. The distance between the centers of the recesses and / or the protrusions RP is, for example, 400 nm or less.

  The ratio of the height or depth of the concave portion and / or convex portion RP to their center-to-center distance is, for example, 1/2 times or more, and typically 1 time or more. The greater this ratio, the smaller the reflectance of the relief structure.

  This relief structure looks dark gray or black because of its low reflectivity. In addition, since the relief structure has a small distance between the centers of the concave portions and / or the convex portions RP, diffracted light with high visibility is not emitted in the front direction, and is emitted only within a limited angle range. That is, the relief structure looks like a dark gray to black print layer. It is difficult to realize that this relief structure can emit diffracted light.

  In addition, in the structure shown in FIG. 20, although the recessed part and / or convex part RP are arrange | positioned regularly, the recessed part and / or convex part RP may be arrange | positioned irregularly. Such a relief structure does not emit diffracted light but looks like a dark gray to black printed layer.

Next, the manufacturing method of the labeled article 100 described above will be described.
FIG. 21 is a diagram schematically illustrating an example of a manufacturing apparatus that can be used for manufacturing the labeled article illustrated in FIG. 1.

  A manufacturing apparatus 500 shown in FIG. 21 can be used, for example, for manufacturing a labeled article 100 that employs the structure described with reference to FIG.

  In manufacturing the labeled article 100, for example, first, a person's face is photographed using an imaging device. Alternatively, a face image is read from the print. Thereby, image information is obtained as electronic information. This face image is subjected to image processing as necessary.

  Next, the image display body 22 shown in FIG. 2 is formed on the article 100 ′ using the manufacturing apparatus 500 shown in FIG. 21. The article 100 ′ is a labeled article 100 from which the image display body 22 is omitted, here a booklet body.

  When forming the image display body 22 using the manufacturing apparatus 500 shown in FIG. 21, thermal transfer ribbons 520ac, 520bc, 527 and 529 are prepared.

  The thermal transfer ribbon 520ad is wound around a roll 540b. The thermal transfer ribbon 520ad includes a strip-shaped first support and a first transfer material layer formed thereon. The first transfer material layer is detachably supported by the first support. A part of the first transfer material layer is used as the image forming layer 220a, and the other part of the first transfer material layer is used as the image forming layer 220d.

  The thermal transfer ribbon 520bc is wound around a roll 540d. The thermal transfer ribbon 520bc includes a belt-like second support and a second transfer material layer formed thereon. The second transfer material layer is detachably supported by the second support. A part of the second transfer material layer is used as the image forming layer 220b, and another part of the second transfer material layer is used as the image forming layer 220c.

  The thermal transfer ribbon 527 is wound around a roll 540c. The thermal transfer ribbon 527 includes a belt-like third support and a third transfer material layer formed thereon. The third transfer material layer is detachably supported by the third support. A part of the third transfer material layer is used as the protective layer 227.

  The thermal transfer ribbon 529 is wound around a roll 540a. The thermal transfer ribbon 529 includes a belt-like fourth support and a fourth transfer material layer formed thereon. The fourth transfer material layer is detachably supported by the fourth support. A part of the fourth transfer material layer is used as the intermediate layer 229.

  After preparing the thermal transfer ribbons 520ac, 520bc, 527 and 529, the thermal transfer ribbons 529 and 520ad are fed out from the rolls 540a and 540b, respectively, and sent to the thermal transfer printer 550a so that the transfer material layers face each other. In the thermal transfer printing device 550a, a part of the first transfer material layer of the thermal transfer ribbon 520ad is thermally transferred from the first support onto the fourth transfer material layer of the thermal transfer ribbon 529 as image display portions 220a and 220d.

  The thermal transfer ribbon 520ad used for this thermal transfer is wound around a roll 570a. On the other hand, the thermal transfer ribbon 529 on which the image display portions 220a and 220d are formed is guided by the guide roller 580a and sent to the thermal transfer device 560a together with the article 100 '.

  In the thermal transfer device 560a, a part of the fourth transfer material layer of the thermal transfer ribbon 529 is thermally transferred from the fourth support onto the cover body 12 of the article 100 'together with the image display portions 220a and 220d. As a result, the image display portions 220 a and 220 d and the intermediate layer 229 are formed on the cover body 21.

  The thermal transfer may be performed with an adhesive layer 225 interposed between the thermal transfer ribbon 529 and the cover body 12. For example, the adhesive layer 225 may be formed on at least one of the thermal transfer ribbon 529 and the cover body 21 and then thermal transfer may be performed.

  The thermal transfer ribbon 529 used for the thermal transfer is guided by the guide rollers 580b and 580c and wound around the winding roll 570a. On the other hand, the article 100 ′ after the thermal transfer is sent to the thermal transfer device 560 b.

  In parallel with the above operation, the thermal transfer ribbons 527 and 520bc are fed out from the rolls 540c and 540d, respectively, and sent to the thermal transfer printer 550b so that the transfer material layers face each other. In the thermal transfer printing apparatus 550b, a part of the second transfer material layer of the thermal transfer ribbon 520bc is thermally transferred from the second support onto the third transfer material layer of the thermal transfer ribbon 527 as the image display portions 220b and 220c.

  The thermal transfer ribbon 520bc used for this thermal transfer is wound up on a roll 570c. On the other hand, the thermal transfer ribbon 527 on which the image display portions 220b and 220c are formed is guided by the guide roller 580d and sent to the thermal transfer device 560b together with the article 100 'sent out from the thermal transfer device 560.

  In the thermal transfer device 560b, a part of the third transfer material layer of the thermal transfer ribbon 527 is placed on the intermediate layer 229 provided on the cover body 12 of the article 100 ′ from the third support together with the image display portions 220b and 220c. Heat transfer to Thereby, the image display portions 220b and 220c and the protective layer 227 are formed on the intermediate layer 229.

  The thermal transfer may be performed with an adhesive layer interposed between the thermal transfer ribbon 527 and the intermediate layer 229. For example, an adhesive layer may be formed on at least one of the thermal transfer ribbon 527 and the intermediate layer 229, and then thermal transfer may be performed.

The thermal transfer ribbon 527 used for this thermal transfer is guided by a guide roller 580f and wound around a winding roll 570b. Then, the article 100 ′ after the thermal transfer is sent out from the thermal transfer device 560b as the labeled article 100.
As described above, the labeled article 100 is completed.

  The labeled article 100 described with reference to FIGS. 7, 8, and 10 to 12 can be manufactured by omitting the formation of one or both of the image display portions 220c and 220d in the above method. it can. The labeled article 100 described with reference to FIG. 9 can be manufactured by omitting the formation of the image display portions 220c and 220d and adding the step of forming the image display portion 220d 'in the above method. In the labeled method 100 described with reference to FIGS. 13, 15 and 16, the thermal transfer ribbons 520ad and 520cd are wound around the rolls 540d and 540b, respectively, in the above method, and one or both of the image display portions 220c and 220d are wound. It can be manufactured by omitting formation. Then, in the labeled article 100 described with reference to FIG. 14, in the above method, the thermal transfer ribbons 520ad and 520cd are wound around the rolls 540d and 540b, respectively, and the formation of the image display portions 220c and 220d is omitted. It can be manufactured by adding a step of forming 220d ′.

  In the above method, the image display portions 220b and 220c are formed using thermal transfer, but the image display portions 220b and 220c may be formed by other methods. For example, a light transmission layer in which a relief structure that causes diffraction or scattering is provided on one main surface is formed in advance on the protective layer 227. Then, the diffraction power or scattering power of the relief structure is partially lost or partially reduced. For example, an energy beam such as a laser beam is irradiated to destroy a part of the relief structure. Alternatively, a material having a refractive index substantially equal to that of the light transmission layer, for example, a colorless resin, typically a colorless transparent resin, is provided on a part of the relief structure by printing such as inkjet printing, and has a smooth surface. Forming a pattern. Alternatively, a solvent is supplied onto a part of the relief structure by printing such as ink jet printing, and the surface of the light transmission layer is dissolved at this supply part. Thereafter, if necessary, a reflective layer is formed on the relief structure. For example, the reflective layer is formed by a vapor deposition method such as vacuum evaporation and sputtering. Alternatively, the reflective layer is formed by applying a light reflective material such as a mixture of metal particles and transparent resin to the relief structure. As described above, the image display units 220b and 220c are obtained.

  The image display portions 220b and 220c may be formed by the following method. That is, a light transmission layer in which a relief structure that causes diffraction or scattering is provided on one main surface is formed on the protective layer 227 in advance. Then, a light-reflective material is supplied onto a part of the relief structure by printing such as inkjet printing. Thereby, a light reflective pattern is obtained as a reflective layer. The portion corresponding to the light reflective pattern has higher diffraction power or scattering power than the portion corresponding to the opening of the light reflective pattern. Therefore, the image display units 220b and 220c can be obtained by such a method.

  In the above method, the image display portions 220a and 220d are formed using thermal transfer, but the image display portions 220a and 220d may be formed by other methods. For example, the image display units 220a and 220d may be formed using printing such as inkjet printing.

  In the method described with reference to FIG. 21, thermal transfer to the article 100 'is performed twice. The labeled article 100 can also be manufactured by performing a single thermal transfer to the article 100 '.

  FIG. 22 is a diagram schematically illustrating an example of a transfer foil that can be used for manufacturing the labeled article illustrated in FIG. 1.

  A transfer foil 201 shown in FIG. 22 includes a transfer material layer 22 ′ and a support 221 that supports the transfer material layer 22 ′ in a peelable manner.

  The support body 221 is, for example, a resin film or a sheet. The support 221 is made of a material having excellent heat resistance such as polyethylene terephthalate (PET). A release layer containing, for example, a fluororesin or a silicone resin may be provided on the main surface of the support 221 that supports the transfer material layer 22 ′.

  The transfer material layer 22 'includes a protective layer 227, an intermediate layer 229, an adhesive layer 225, and image forming layers 220a to 220d. The protective layer 227, the intermediate layer 229, and the adhesive layer 225 are laminated in this order from the support 221 side. The image forming layers 220 a and 220 d are interposed between the intermediate layer 229 and the adhesive layer 225. The image forming layers 220b and 220c are interposed between the intermediate layer 229 and the protective layer 227.

  The whole or part of the transfer material layer 22 ′ is used for manufacturing the labeled article 100. The transfer material layer 22 'or a part thereof is the same as the image display body 22 shown in FIG.

  In manufacturing the labeled article 100, for example, first, a person's face is photographed using an imaging device. Alternatively, a face image is read from the print. Thereby, image information is obtained as electronic information. This face image is subjected to image processing as necessary. Using this image information, the transfer material layer 22 ′ is formed on the support 221. Next, at least a part of the transfer material 221 is thermally transferred from the support 221 onto the article 100 ′. The labeled article 100 is obtained as described above.

  As described above, the passport is described as the labeled article. However, the above-described technique can be applied to a personal authentication medium other than the passport. For example, the technology described above can be applied to competition credit cards and credit cards used in competitions such as the Olympic Games.

  There is no restriction on the size of the labeled article. When using a labeled article for personal authentication, it is desirable that the article is easily carried. The size of the tournament identification card used in a tournament such as an Olympic tournament is, for example, about 95 mm × about 150 mm. The dimension of the data page of the passport is, for example, about 125 mm × about 88 mm. The size of the credit card is, for example, 86 mm × about 54 mm.

  Although there is no restriction | limiting in the shape of the articles | goods which support an image display body, Generally, this article | item contains a layer like a booklet and a card | curd base material. The thickness of this layer is, for example, in the range of 20 μm to 1000 μm, and typically in the range of 50 μm to 800 μm.

  The image display can be supported on paper such as plain paper, coated paper, and synthetic paper. The synthetic paper is a layer containing, for example, a plastic such as polypropylene and polystyrene and an inorganic filler such as calcium carbonate. Alternatively, synthetic paper is a composite of such a layer and plain paper.

  The image display may be supported by a layer made of plastic such as vinyl chloride, polyethylene terephthalate, and polyethylene naphthalate. Alternatively, the image display body may be supported by a layer made of ceramics.

  The area | region which supports an image display body among the surfaces of articles | goods may have a single color over the whole. Alternatively, this region may include a plurality of sub-regions having different colors. Considering the visibility of the image displayed by the image display body, the previous area is colored white with a white pigment, for example, titanium white, magnesium carbonate, zinc oxide, barium sulfate, silica, talc, clay or calcium carbonate. Also good.

  The technique described above can also be used for authentication other than personal authentication. That is, the above-described technique may be used for authentication of a living body other than a human, or may be used for authentication of a body other than a living body. For example, the above-described technique can be used for authentication of non-human animals, plants, bacteria, securities, industrial products, agricultural products, marine products, or artworks.

  The above-described technique can also be used for purposes other than authentication. For example, the labeled article or the image display body can be used as a toy, a decoration, or a learning material.

  DESCRIPTION OF SYMBOLS 1 ... Signature, 2 ... Cover, 11 ... Paper piece, 21 ... Cover body, 22 ... Image display body, 22 '... Transfer material layer, 100 ... Article with label, 100' ... Article, 201 ... Transfer foil, 220a ... Image Display unit, 220b ... Image display unit, 220c ... Image display unit, 220d ... Image display unit, 220d '... Image display unit, 221 ... Support, 223b ... Diffraction structure formation layer, 223c ... Diffraction structure formation layer, 224b ... Reflection Layer, 224c ... reflective layer, 225b ... adhesive layer, 225c ... adhesive layer, 229 ... intermediate layer, 227 ... protective layer, 225 ... adhesive layer, 500 ... manufacturing device, 520ac ... thermal transfer ribbon, 520bc ... thermal transfer ribbon, 527 ... thermal transfer Ribbon, 529 ... Thermal transfer ribbon, 540a ... Roll, 540b ... Roll, 540c ... Roll, 540d ... Roll, 550a ... Thermal transfer printer, 550b ... Heat Copy printing device, 560a ... thermal transfer device, 560b ... thermal transfer device, 570a ... take-up roll, 570b ... take-up roll, 570c ... take-up roll, 570d ... take-up roll, 580a ... guide roller, 580b ... guide roller, 580c ... Guide roller, 580d ... Guide roller, 580e ... Guide roller, 580f ... Guide roller, Aa ... Area, Ab ... Area, Ac ... Area, Ad ... Area, I1a ... Image, I1b ... Image, I2 ... Image, I3c ... Image, I3d ... image, IF ... interface, RP ... concave and / or convex.

Claims (14)

A light transmissive intermediate layer having first and second major surfaces;
A first image display unit provided on the first main surface and displaying first information relating to a certain target as a first image of an object color;
An image display body comprising a second image display unit provided on the second main surface and displaying second information related to the object as a second image having a structural color derived from a relief structure.   The image display body according to claim 1, wherein the target is a living body, and each of the first and second information is biological information.   The image display body according to claim 2, wherein the first image display unit displays a face image as the first image, and the second image display unit displays a face image as the second image.   The image display body according to claim 2, wherein the living body is a person, and the image display body is used for personal authentication.   5. The apparatus according to claim 1, further comprising a third image display unit that faces the second image display unit with the intermediate layer interposed therebetween and displays an image of a light source color when irradiated with excitation light. The image display body described in 1.   Provided on the first main surface, opening at a position corresponding to the second image display unit and in a shape corresponding to the second image display unit, and displaying the background of the second image as an object color image The image display body according to any one of claims 1 to 4, further comprising a third image display unit that displays a background of the second image as an image of a light source color when irradiated with excitation light. .   Faced to be provided on the second main surface, opened at a position corresponding to the first image display unit and in a shape corresponding to the first image display unit, and the background of the first image as a structural color image The image display body according to claim 1, further comprising a fourth image display unit for displaying.   The image display body according to claim 1, wherein the second image display unit includes a relief structure that emits diffracted light, and displays the second image by the diffracted light.   The image display body according to claim 1, wherein the second image display unit includes a relief structure that emits scattered light, and displays the second image by the scattered light.   10. The intermediate layer according to claim 1, wherein the intermediate layer includes at least one selected from the group consisting of a hologram, a diffraction grating, an infrared absorption layer, a fluorescent layer, and a print pattern for displaying an object color. The image display body described.   And further comprising a light-transmitting protective layer facing the intermediate layer with the first or second image display portion interposed therebetween, wherein the protective layer comprises a hologram, a diffraction grating, an infrared absorption layer, a fluorescent layer, and an object. The image display body according to claim 1, comprising at least one selected from the group consisting of print patterns for displaying colors.   A labeled article comprising the image display body according to any one of claims 1 to 11 and a base material supporting the image display body.   The labeled article according to claim 12, wherein the substrate is a card substrate or a booklet.   The labeled article according to claim 12 or 13, which is used for personal authentication.

Images