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公开(公告)号：EP3357705B1
公开(公告)日：2019-10-30
申请号：EP16851891.8
申请日：2016-09-30
Applicant: Toppan Printing Co., Ltd.
Inventor： YAMADA, Shizuka
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公开(公告)号：EP3910384A1
公开(公告)日：2021-11-17
申请号：EP20738217.7
申请日：2020-01-07
Applicant: Toppan Printing Co., Ltd.
Inventor： UCHIDA, Satoshi , YAMADA, Shizuka
Abstract: An embossed layer includes a geometric optical structure region, a wave optical structure region, and a third structure region between the geometric optical structure region and the wave optical structure region. The embossed layer includes a first uneven structure that is in the geometric optical structure region and has a height of greater than or equal to 0.5 µm and less than 30 µm. The embossed layer includes a second uneven structure that is in the wave optical structure region and has a height of greater than or equal to 100 nm and less than 500 nm. The embossed layer includes a third uneven structure that is in the third structure region and has a height of greater than or equal to half a thickness of the embossed layer, less than or equal to twice the height of the first uneven structure, and greater than the height of the first uneven structure.
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公开(公告)号：EP3357705A1
公开(公告)日：2018-08-08
申请号：EP16851891.8
申请日：2016-09-30
Applicant: Toppan Printing Co., Ltd.
Inventor： YAMADA, Shizuka
IPC: B42D25/328 , B23K26/00 , B23K26/57 , B32B5/18 , B41M5/26 , B42D25/36 , B42D25/41 , G02B5/18 , G03H1/02 , G09F3/02 , G09F3/03
Abstract: The anti-counterfeiting structure includes an allochroic layer including an allochroic part having a characteristic of changing from a first material to a second material in response to laser irradiation, a first layer transmissible to a laser beam, a second layer transmissible to the laser beam, at least a part of the second layer being located between the allochroic layer and the first layer, and a coating layer transmissible to the laser beam and covering at least the first layer. The coating layer and the first layer are bonded together more weakly than the first layer and the second layer are. One of the first layer and the second layer is a foamable layer having a characteristic of changing from an unfoamed state to a foamed state in response to laser irradiation, while the other of the first layer and the second layer is an optical device.
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公开(公告)号：EP4249281A2
公开(公告)日：2023-09-27
申请号：EP23189982.4
申请日：2020-01-07
Applicant: Toppan Printing Co., Ltd.
Inventor： UCHIDA, Satoshi , YAMADA, Shizuka
IPC: B42D25/328
Abstract: An embossed layer, wherein the embossed layer includes a geometric optical structure region, and a wave optical structure region, the embossed layer includes a first uneven structure in the geometric optical structure region, the first uneven structure having a height of greater than or equal to 0.5 µm and less than 30 µm, and the embossed layer includes a second uneven structure in the wave optical structure region, the display body being characterised in that the second uneven structure has a height of greater than or equal to 100 nm and less than 500 nm, in that the embossed layer includes a third structure region, the third structure region being located between the geometric optical structure region and the wave optical structure region, and in that the embossed layer includes a third uneven structure in the third structure region, the third uneven structure having a height of greater than or equal to half a thickness of the embossed layer and less than or equal to twice the height of the first uneven structure, the height of the third uneven structure being greater than the height of the first uneven structure.
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公开(公告)号：EP4249280A2
公开(公告)日：2023-09-27
申请号：EP23189981.6
申请日：2020-01-07
Applicant: Toppan Printing Co., Ltd.
Inventor： UCHIDA, Satoshi , YAMADA, Shizuka
IPC: B42D25/328
Abstract: An embossed layer, wherein the embossed layer includes a geometric optical structure region, and a wave optical structure region, the embossed layer includes a first uneven structure in the geometric optical structure region, the first uneven structure having a height of greater than or equal to 0.5 µm and less than 30 µm, and the embossed layer includes a second uneven structure in the wave optical structure region, the display body being characterised in that the second uneven structure has a height of greater than or equal to 100 nm and less than 500 nm, in that the embossed layer includes a third structure region, the third structure region being located between the geometric optical structure region and the wave optical structure region, and in that the embossed layer includes a third uneven structure in the third structure region, the third uneven structure having a height of greater than or equal to half a thickness of the embossed layer and less than or equal to twice the height of the first uneven structure, the height of the third uneven structure being greater than the height of the first uneven structure.
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Patent Agency Ranking
公开(公告)号：EP4249280A3
公开(公告)日：2024-01-03
申请号：EP23189981.6
申请日：2020-01-07
Applicant: Toppan Printing Co., Ltd.
Inventor： UCHIDA, Satoshi , YAMADA, Shizuka
Abstract: An embossed layer, wherein the embossed layer includes a geometric optical structure region, and a wave optical structure region, the embossed layer includes a first uneven structure in the geometric optical structure region, the first uneven structure having a height of greater than or equal to 0.5 µm and less than 30 µm, and the embossed layer includes a second uneven structure in the wave optical structure region, the display body being characterised in that the second uneven structure has a height of greater than or equal to 100 nm and less than 500 nm, in that the embossed layer includes a third structure region, the third structure region being located between the geometric optical structure region and the wave optical structure region, and in that the embossed layer includes a third uneven structure in the third structure region, the third uneven structure having a height of greater than or equal to half a thickness of the embossed layer and less than or equal to twice the height of the first uneven structure, the height of the third uneven structure being greater than the height of the first uneven structure.
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公开(公告)号：EP3459756A1
公开(公告)日：2019-03-27
申请号：EP17799454.8
申请日：2017-05-18
Applicant: Toppan Printing Co., Ltd.
Inventor： YAMADA, Shizuka
IPC: B42D25/328 , B41M5/46 , G02B5/18
Abstract: An anti-counterfeiting structure includes a substrate having a surface, and an device structure positioned on the surface. A side opposite to the side on which the substrate is positioned with respect to the device structure 12 is an observation side, and the device structure comprises an optical device layer that emits predetermined light towards the observation side, and an information portion that contains given information. The information portion comprises a first substance having optical transparency, wherein the first substance is changeable to a second substance having a different optical characteristic from the first substance by laser irradiation, and the second substance representing information. The device structure has a display surface that is a surface opposite to the surface on which a surface of the substrate, and is configured so as to display information contained in the information portion via the display surface.
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公开(公告)号：EP4467353A1
公开(公告)日：2024-11-27
申请号：EP24204205.9
申请日：2017-05-18
Applicant: Toppan Printing Co., Ltd.
Inventor： YAMADA, Shizuka
IPC: B42D25/328 , B41M5/46 , G02B5/18 , B42D25/41 , B42D25/324 , B42D25/351
Abstract: An anti-counterfeiting structure includes a substrate having a surface, and a device structure positioned on the surface. A side opposite to the side on which the substrate is positioned with respect to the device structure 12 is an observation side, and the device structure comprises an optical device layer that emits predetermined light towards the observation side, the optical device layer including a relief structure layer, and an information portion that contains given information. The information portion comprises a first substance having optical transparency, wherein the first substance is changeable to a second substance having a different optical characteristic from the first substance by laser irradiation, and the second substance representing information. The information portion is constituted by a plurality of information elements. The device structure has a display surface that is a surface opposite to the surface on which a surface of the substrate, and is configured so as to display information contained in the information portion via the display surface. After laser irradiation each of the information elements includes the first substance dispersed substantially throughout the entire information element and the second substance dispersed substantially throughout the entire information element, and has a shape representing a portion of the information as viewed perpendicular to the surface. In a portion of the relief structure layer contacting an information element, a discolored changed portion, that is a portion having a color different from that of a portion other than the discolored changed portion in the relief structure layer, is formed by the laser irradiation.
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公开(公告)号：EP4249281A3
公开(公告)日：2024-01-03
申请号：EP23189982.4
申请日：2020-01-07
Applicant: Toppan Printing Co., Ltd.
Inventor： UCHIDA, Satoshi , YAMADA, Shizuka
Abstract: An embossed layer, wherein the embossed layer includes a geometric optical structure region, and a wave optical structure region, the embossed layer includes a first uneven structure in the geometric optical structure region, the first uneven structure having a height of greater than or equal to 0.5 µm and less than 30 µm, and the embossed layer includes a second uneven structure in the wave optical structure region, the display body being characterised in that the second uneven structure has a height of greater than or equal to 100 nm and less than 500 nm, in that the embossed layer includes a third structure region, the third structure region being located between the geometric optical structure region and the wave optical structure region, and in that the embossed layer includes a third uneven structure in the third structure region, the third uneven structure having a height of greater than or equal to half a thickness of the embossed layer and less than or equal to twice the height of the first uneven structure, the height of the third uneven structure being greater than the height of the first uneven structure.
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公开(公告)号：EP3573044A1
公开(公告)日：2019-11-27
申请号：EP18741286.1
申请日：2018-01-19
Applicant: Toppan Printing Co., Ltd.
Inventor： YAMADA, Shizuka
IPC: G09F19/14 , G02B5/04 , B42D25/23 , B42D25/29 , B42D25/30 , B42D25/324 , B42D25/328 , G09F19/12
Abstract: A display body includes a light interference layer, a prism layer, and an interface layer. Incident light enters the light interference layer at an incidence angle. The light interference layer emits reflected light. The incident light has a certain wavelength range. The reflected light has a given wavelength that is a part of the certain wavelength range. The given wavelength depends on the incidence angle. The prism layer has a light transmission property and transmits the incident light to the light interference layer. The prism layer has an uneven surface that includes at least one display region. The interface layer is adjacent to the uneven surface. The interface layer has a difference in refractive index from the prism layer such that a refractive index of a side of an interface between the uneven surface and the interface layer at which the prism layer is located is higher than a refractive index of a side of the interface at which the light interference layer is located. The display region includes inclination elements. The inclination elements adjacent to each other in an array direction contact each other in a plan view facing a plane along which the prism layer expands. The inclination elements include first inclination elements among which the inclination angle increases by a constant angle along the array direction.
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