| 摘要 |
PURPOSE:To obtain a data memory card excellent in durability and reliability by arranging a reversible recording layer based on a resin matrix and the org. low-molecular substance and additives dispersed therein and reversible changing in transparency by temp. in a recessed part of a support member. CONSTITUTION:A data memory card can repeatedly perform recording and erasure and can perform temporary display. In this case, the data memory card is constituted by arranging a reversible recording layer 3 based on a resin matrix and the org. low molecular substance and additives dispersed therein and reversibly changing in transparency by temp. in the recessed part 5 formed to a support member 1. A color layer 2 may be arranged under the reversible recording layer 3 within the recessed part 5. Further, a magnetic recording layer 4 may be arranged to a part of the same surface of the support member 1 or to a part of the other surface thereof. By this constitution, required data is simply and inexpensively displayed and a high contrast display image is ensured. |
