OPTICAL DIFFRACTION INTEGRATED CIRCUIT TAG DISPLAY BODY AND PRODUCT INFORMATION MANAGEMENT SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide an optical diffraction IC tag display body in which an optical diffraction structure having a non-contact IC tag and a hidden pattern on a same base material and to provide a production information management system using the optical diffraction IC tag display body.

SOLUTION: In this optical diffraction IC tag display body 1 having the non-contact IC tag 3 formed on one side surface of a base material sheet and an optical diffraction structure 2 formed on the other side surface thereof, the hidden pattern developed by a discrimination device and enabling discrimination is recorded in the optical diffraction structure 2. The optical diffraction structure comprises an emboss formed layer generating optical diffraction and a metal reflective layer so that the hidden pattern can be developed by the interference or moire thereof with the discrimination device. The product information management system utilizes the recording and hidden pattern of the non-contact IC tag of the optical diffraction IC tag display body.

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