Thermochromic Liquid Crystals

Thermochromic liquid crystals (TLC) are color changing crystals that undergo a reversible thermally induced color change. Traditional TLCs are microencapsulated and coated on a black backing. As they approach their temperature rating, they pass through the colors of the spectrum in sequence from tan to green to blue before turning back to black. TLCs can possess acute thermal sensitivity, detecting temperature changes as small as 0.2ºF and are available from -22⁰F to 248⁰F.