REVERSIBLE TEMPERATURE SENSITIVE DISCOLORABLE DISPLAY

摘要

PROBLEM TO BE SOLVED: To provide a display which is constituted in such a manner that an aspect (1) exhibited at arbitrary temperature of an ordinary temperature region can be reversibly changed to an aspect (2) or aspect (3) by application of heat or cold heat and can be gradually reset of itself to the original aspect (1) and which is embodied in the form of a toy, etc., to satisfy the exquisiteness and visual sensation effect of the aspect changes. SOLUTION: This display is constituted by forming a first reversible thermal discoloration layer 3 and second reversible thermal discoloration layer 4 varying in the visual sensation concentration at the time of color development from each other by lapping at the same section of the surface of a base 2 specified in thermal conductivity or heat capacity. The aspect (1) is changed to the aspect (2) or the aspect (3) or vice versa by the application of the heat or cold heat existing in the living environment temperature region and the aspect is gradually reset of itself to the original aspect (1) after the heat or the cold heat is removed.