ORGANIC ELECTROLUMINESCENCE ELEMENT

摘要

An organic electroluminescence element which has a luminous layer made of at least an organic material and formed between a hole injection electrode and an electron injection electrode. The host material of the luminous layer is doped with a dopant having three or more condensed rings. The difference between the highest occupied level in the host material and that of the dopant is -0.3 eV to +0.3 eV.