| 摘要 |
PROBLEM TO BE SOLVED: To provide a full of variety and unique image display medium having excellent decorativeness by forming a color image and an OVD(Optical Variable Device) image in one sheet of image medium. SOLUTION: On the image display medium 11 a color image 12 with OVD image obtained by combining a color image part 121, a monochromatic image part 122, a reflection type OVD image part 123, and a transparent OVD image part 124, are formed. As a general OVD, hologram and diffraction grating is used. The color image 12 with OVD image is formed by combining each image part. The color image 121 expresses a face photograph, the monochromatic image part 122 expresses a latter comment, the reflection type OVD image part 123 expresses a frame, and the transparent OVD image part 124 expresses the background. With this structure, a variable unique image display medium having excellent decorativeness can be obtained by transferring and printing the hologram and the diffraction grating. Furthermore, in the case of using this image display medium for ID card or the like, a forgery and dishonest alteration can be prevented. |
