A remarkable self adhesive sheet material printed with thermochromic liquid crystal ‘ink’. Changes colour (bright blue) when heated above 27°C.
Potential applications are many and varied. E.g. temperature indication/warnings, body jewellery, advertising displays (attach a resistance wire to the rear and pass a small current to cause dramatic colour changes to the front ‘screen’. – Note: typical applications require only very small pieces – e.g. 25mm x 25mm.