Patent ID: 11917844
Assignee: CANON KABUSHIKI KAISHA
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  G | IPC H

Claim 8:
9. The organic EL element according to claim 1, wherein the first light-emitting layer contains, as the light-emitting material, a red dopant material and a green dopant material, and relations (i) and (ii) below are satisfied:

LUMO(H)<LUMO(RD)  (i)

LUMO(H)<LUMO(GD)  (ii)

where LUMO (H), LUMO (RD), and LUMO (GD) represent an absolute value of a LUMO energy of the host material, an absolute value of a LUMO energy of the red dopant material, and an absolute value of a LUMO energy of the green dopant material, respectively.