Multiple-image display body

Patent metadata

Field	Value
Publication number	US-2016089924-A1
Application number	US-201514962902-A
Country	US
Kind code	A1
Filing date	Dec 8, 2015
Priority date	Jun 10, 2013
Publication date	Mar 31, 2016
Grant date	—

Abstract

A multiple-image display body includes a spacer layer, a line tone barrier layer stacked on the first surface of the spacer layer, and a multiple-image formation layer stacked on the second surface of the spacer layer. The line tone barrier layer includes first regions, which transmit electromagnetic waves, and second regions, which absorb electromagnetic waves. The multiple-image formation layer includes images that are visible when observed from specific angles over the first regions of the line tone barrier. The image is formed by a contrast resulting from an area ratio of the third region, which scatters electromagnetic waves, and the fourth region, which absorbs electromagnetic waves.

First claim

1 . A multiple-image display body comprising:
a spacer layer including a first surface and a second surface opposite to the first surface, wherein the spacer layer has the form of a thin film; a line tone barrier layer stacked on the first surface of the spacer layer, wherein the line tone barrier layer includes first regions, which transmit electromagnetic waves in at least some wavelength ranges, and second regions, which absorb electromagnetic waves in at least some wavelength ranges, the second regions in a surface contacting the spacer layer have substantially the same width and shape, and the second regions are arranged at equal intervals sandwiching at least portions of the first regions to form a line tone pattern; and a multiple-image formation layer stacked on the second surface of the spacer layer, wherein the multiple-image formation layer includes images that are visible when observed from specific angles over the first regions of the line tone barrier, wherein each of the images includes a third region, which scatters electromagnetic waves in at least some wavelength ranges, and a fourth region, which absorbs electromagnetic waves in at least some wavelength ranges, and the image is formed by a contrast resulting from an area ratio of the third region and the fourth region.

2 . The multiple-image display body according to claim 1 , wherein the third region has a corrugated structure, and the corrugated structure includes recesses filled with electromagnetic wave scattering particles that scatter electromagnetic waves in at least some wavelength ranges.

3 . The multiple-image display body according to claim 1 , wherein the third region includes a corrugated structure, which is undulated and has a scattering characteristic, and an electromagnetic wave reflection layer, which is arranged on a surface of the corrugated structure.

4 . The multiple-image display body according to claim 1 , wherein the fourth region has a corrugated structure, and the corrugated structure includes recesses filled with electromagnetic wave absorbing particles that absorb electromagnetic waves in at least some wavelength ranges.

5 . The multiple-image display body according to claim 4 , wherein the particles which the recesses are filled with are at least one of pigments, dyes, and metal nanoparticles.

6 . The multiple-image display body according to claim 4 , wherein the particles which the recesses are filled with are at least one of pigments, dyes, and metal nanoparticles.

7 . The multiple-image display body according to claim 1 , wherein the fourth region includes a corrugated structure, which is undulated and has an absorbing characteristic, and an electromagnetic wave reflection layer, which is arranged on a surface of the corrugated structure.

8 . A multiple-image display body comprising:
a spacer layer including a first surface and a second surface opposite to the first surface, wherein the spacer layer has the form of a thin film; a line tone barrier layer stacked on the first surface of the spacer layer, wherein the line tone barrier layer includes first regions, which transmit electromagnetic waves in at least some wavelength ranges, and second regions, which absorb electromagnetic waves in at least some wavelength ranges, the second regions in a surface contacting the spacer layer have substantially the same width and shape, and the second regions are arranged at equal intervals sandwiching at least portions of the first regions to form a line tone pattern; a multiple-image formation layer stacked on the second surface of the spacer layer, wherein the multiple-image formation layer includes images that are visible when observed from specific angles over the first regions of the line tone barrier, wherein each of the images includes a third region, which scatters electromagnetic waves in at least some wavelength ranges, and a fifth region, which transmits electromagnetic waves in at least some wavelength ranges, and the image is formed by a contrast resulting from an area ratio of the third region and the fifth region; and an electromagnetic wave absorbing layer stacked on a surface of the multiple-image formation layer opposite to the spacer layer, wherein the electromagnetic wave absorbing layer absorbs electromagnetic waves transmitted in order from the line tone barrier to the spacer layer and then to the fifth region.

9 . The multiple-image display body according to claim 8 , wherein the third region has a corrugated structure, and the corrugated structure includes recesses filled with electromagnetic wave scattering particles that scatter electromagnetic waves in at least some wavelength ranges.

10 . The multiple-image display body according to claim 8 , wherein the third region includes a corrugated structure, which is undulated and has a scattering characteristic, and an electromagnetic wave reflection layer, which is arranged on a surface of the corrugated structure.

11 . A multiple-image display body comprising:
a spacer layer including a first surface and a second surface opposite to the first surface, wherein the spacer layer has the form of a thin film; a line tone barrier layer stacked on the first surface of the spacer layer, wherein the line tone barrier layer includes first regions, which transmit electromagnetic waves in at least some wavelength ranges, and second regions, which absorb electromagnetic waves in at least some wavelength ranges, the second regions in a surface contacting the spacer layer have substantially the same width and shape, and the second regions are arranged at equal intervals sandwiching at least portions of the first regions to form a line tone pattern; a multiple-image formation layer stacked on the second surface of the spacer layer, wherein the multiple-image formation layer includes images that are visible when observed from specific angles over the first regions of the line tone barrier, wherein each of the images includes a sixth region, which absorbs electromagnetic waves in at least some wavelength ranges, and a seventh region, which transmits electromagnetic waves in at least some wavelength ranges, and the image is formed by a contrast resulting from an area ratio of the sixth region and the seventh region; and an electromagnetic wave scattering layer arranged on a surface of the multiple-image formation layer opposite to the spacer layer, wherein the electromagnetic wave scattering layer scatters electromagnetic waves transmitted in order from the line tone barrier to the spacer layer and then to the seventh region.

12 . The multiple-image display body according to claim 11 , wherein the sixth region has a corrugated structure, and the corrugated structure includes recesses filled with electromagnetic wave absorbing particles that absorb electromagnetic waves in at least some wavelength ranges.

13 . The multiple-image display body according to claim 12 , wherein the particles which the recesses are filled with are at least one of pigments, dyes, and metal nanoparticles.

14 . The multiple-image display body according to claim 12 , wherein the particles which the recesses are filled with are core shell particles including cores of fine pigments and shells of a thermoplastic or thermosetting resin.

Assignees

• Toppan Printing Co Ltd

Inventors

• Yashiki Kazuhiro
• Kubo Akira

Classifications

• B42D25/324

  Reliefs · CPC title

• B42D25/378

  Special inks · CPC title

• B42D25/351

  Translucent or partly translucent parts, e.g. windows · CPC title

• B42D25/373

  Metallic materials · CPC title

• B42D25/45

  Associating two or more layers · CPC title