Display

Patent metadata

Field	Value
Publication number	US-2016003990-A1
Application number	US-201514851709-A
Country	US
Kind code	A1
Filing date	Sep 11, 2015
Priority date	Mar 12, 2013
Publication date	Jan 7, 2016
Grant date	—

Abstract

A display includes a transparent base having one surface on which a structure-forming layer, a light reflection layer and a protective layer are sequentially laminated. The light reflection layer reflects part of the incident light, while transmitting therethrough the rest of the light. The structure-forming layer includes a plurality of structure areas, and each of the plurality of structure areas is formed of a concavo-convex structure.

First claim

What is claimed is:

1 . A display, comprising:
a transparent base having one surface on which a structure-forming layer, a light reflection layer, and a protective layer are sequentially laminated, with the light reflection layer reflecting a part of light passing therethrough, while transmitting therethrough another part of the light; and the structure-forming layer includes a plurality of structure areas that are formed of a concavo-convex structure.

2 . The display of claim 1 , wherein the plurality of structure areas are configured to have differences in at least one of the following parameters: height, cycle, width of convexity, and width of concavity of the concavo-convex structure, so that light transmitted through the plurality of structure areas has different dominant wavelengths.

3 . The display of claim 1 , wherein the plurality of structure areas are configured to display at least one image, selected from mutually different designs, letters, and numerals.

4 . The display of claim 1 , wherein the structure-forming layer includes a non-structure area where no concavo-convex structure is formed, with the structure area having a transmittance of more than about 20% and the non-structure area having a transmittance of not more than about 20%.

5 . The display of claim 1 , wherein the plurality of structure areas includes concavo-convex structures having different heights.

6 . The display of claim 1 , wherein the concavo-convex structure includes two kinds of different structures, one being a concavo-convex structure having a larger height that the other structure and the other being a concavo-convex structure having a smaller height than the other structure, and with the concavo-convex structure having a larger height and the concavo-convex structure having a smaller height being alternately arranged.

7 . The display of claim 1 , wherein the concavo-convex structure has a maximum height of not less than 250 nm but not more than 600 nm.

8 . The display of claim 1 , wherein the concavo-convex structure has a minimum height of not less than 10 nm but not more than 200 nm.

9 . The display of claim 1 , wherein the concavo-convex structure has a cycle of not less than 300 nm but not more than 800 nm.

10 . The display of claim 1 , wherein at least some of the plurality of structure areas are equal in cycle and height of the concavo-convex structure, but are different in width of concavity or width of convexity, or both, of the concavo-convex structure.

11 . The display of claim 1 , wherein the protective layer has a surface on a side not contacting the reflection layer, this surface being provided with a transparent member having light scattering properties.

12 . The display of claim 1 , wherein the protective layer has a surface on a side not contacting the light reflection layer, this surface being provided with a transparent member that is configured to be a concavo-convex structure so that at least a part of the transparent member has light scattering properties.

13 . The display of claim 1 , wherein the transparent base has a surface on a side not contacting the structure-forming layer, this surface being further provided with a concavo-convex structure to allow at least a part of the transparent member to have light scattering properties.

14 . The display of claim 1 , wherein the concavo-convex structure has a longitudinal profile in a wind ripple pattern.

15 . The display of claim 1 , wherein the concavo-convex structure is configured as a diffraction grating.

16 . The display of claim 1 , wherein at least a part of the concavo-convex structure is a linear structure.

17 . The display of claim 1 , wherein at least a part of the plurality of structure areas are arranged in a matrix pattern.

18 . The display of claim 1 , wherein the light reflection layer is a thin aluminum film formed by a vapor phase deposition method that is one selected from a group consisting of vacuum vapor deposition methods and sputtering methods.

19 . The display of claim 1 , wherein light transmitted through the structure area has a dominant wavelength that falls within a visible light range.

20 . The display of claim 1 , wherein the display further includes a transparent member, and the protective layer has adhesiveness so that the protective layer can be joined to the light reflection layer and the transparent member.

21 . An information medium including the display of claim 1 .

Assignees

• Toppan Printing Co Ltd

Inventors

• Tsukahara Toshiyuki
• Shinoda Koichi
• Hayashi Takayoshi

Classifications

• B42D25/333

  Watermarks · CPC title

• G02B5/1842 Primary

  Gratings for image generation (G02B5/1847 takes precedence) · CPC title

• B42D25/47

  using adhesives · CPC title

• B42D25/328 Primary

  Diffraction gratings; Holograms · CPC title

• B42D25/373

  Metallic materials · CPC title