Light emitting element

A light emitting element comprising, between an anode and a cathode, at least:

• a light emitting layer containing a luminescent substance;
• and
• an electron transporting layer formed over the light emitting layer, the electron transporting layer being divided into a first region and a second region,
• wherein the second region is provided between and in contact with the light emitting layer and the first region,
• the first region is doped with a substance containing a polycyclic condensed ring,
• the second region is not doped with an additive, and
• wherein a compound that mainly forms the first region and a compound that forms the second region are the same compound.

A light emitting element comprising, between electrodes, at least:

• a light emitting layer containing a luminescent substance;
• and
• an electron transporting layer formed over the light emitting layer, the electron transporting layer being divided into a first region and a second region,
• wherein the second region is provided between the light emitting layer and the first region,
• the first region includes an electron transporting material,
• the second region is not doped with an additive,
• a substance containing a polycyclic condensed ring is added into the first region,
• wherein a compound that mainly forms the first region and a compound that forms the second region are the same compound.