A compressed fluid formulation containing electron transporting, hole injecting material, hole transporting material and electroluminescent material

摘要

An imaging composition comprising a mixture of a solvent and a functional material; wherein the solvent is a compressed fluid and the functional material is a hole injecting material, a hole transporting material, an electron transporting material, an electroluminescent material which is dissolved, dispersed and/or solubilized in the compressed fluid; wherein the mixture is thermodynamically stable or thermodynamically metastable or both; wherein the functional material is solvent-free and forms a solid film upon deposition on the substrate. A display device using the composition is also disclosed.