| 简介 |
The objective of the present invention is to provide a light emitting element providing light with high brightness and capable of being operated at low voltage, and to provide a light emitting device or electronic device with reduced power consumption. The light emitting element n (n is a natural number equal to or greater than two) electroluminescence (EL) layers between anode and cathode comprises : a first layer including one among alkali metal, alkali earth metal, rare earth metal, alkali metal compound, alkali earth metal compound, rare earth metal compound between the first and the second EL layers; a second layer including in contact with the first layer and including a material with high electron transporting properties; and a region in contact with the second layer, and including a material with high hole transporting properties and a material with acceptor properties.COPYRIGHT KIPO 2017 |
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