Title:
IMAGE DISPLAY MEDIUM AND METHOD FOR MANUFACTURING IMAGE DISPLAY MEDIUM
Document Type and Number:
Japanese Patent JP2006248137
Kind Code:
A
Abstract:
To provide an image display medium which takes an effective visual effect to make a light diffraction structure appear as if it were painted in a desired color.
This image display medium 1 comprises a light diffraction structure part 21 constituted of a halftone dot-like light diffraction structure, formed in a colored region 20 on a base material 10. In addition, the halftone dot area ratio of a halftone dot 21a constituting the light diffraction structure part 21 to the colored region 20, is 15 to 60%. Further, the area of each halftone dot 21a is less than 0.25 mm2 and diffuse-formed by an error diffusion process.
Inventors:
FUNADA HIROSHI
Application Number:
JP2005070567A
Publication Date:
September 21, 2006
Filing Date:
March 14, 2005
Export Citation:
Assignee:
DAINIPPON PRINTING CO LTD
International Classes:
B42D15/10; G02B5/30; G03H1/18
Domestic Patent References:
| JP2004101834A | 2004-04-02 | |||
| JP2002328213A | 2002-11-15 |
Attorney, Agent or Firm:
Koji Yamamoto
Akihiko Yamashita
Kishimoto Tatsuto
Akihiko Yamashita
Kishimoto Tatsuto