Electroluminescent inks are a set of inks and varnishes creating a luminescent coating, which glows with its own light after plugging in to the electricity. They are characterised by glowing under alternating or direct electric current. The glowing occurs after plugging in the ink surface to the alternating or direct electric current.
The effect can be completely controlled, without the need of prior „charging” with the daylight, as it is in case of phosphorescent inks, or after turning on the UV light, as it is in case of invisible fluorescent inks.
Electroluminescent inks are used e.g. in production of backlit, thin and lightweight panels which can be shaped and cut, thus creating a sort of an elastic lighting.