ORGANIC ELECTROLUMINESCENCE ELEMENT AND DISPLAY DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a light-emitting element having a high brightness, a high luminescent efficiency, and a longer operating life.

SOLUTION: The light-emitting element includes a pair of electrodes having at least either of transparent or translucent anode and a cathode; and one or a plurality of organic compound layers between the pair of electrodes. At least one layer of the organic compound layers is an organic electroluminescence element having at least one kind of charge-transport-property polyester having a repeating unit including at least one kind selected from a quinoxalineditriphenylamine structure as a partial structure.

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