Abstract: An organic emitter represented by formula (I): having a highest occupied molecular orbital (HOMO) of more than 70% electron density localized on the Ar1Ar2N-L unit and having an energy of lower than 4.9 eV in absolute numbers, a HOMO-1 having more than 70% electron density localized on the BD unit and an energy higher than 4.75 eV in absolute numbers, and a lowest unoccupied molecular orbital (LUMO) having more than 70% electron density localized on the BD unit. A compound represented by formula (I), where BD is a group selected from the following formulas: A material for an organic electroluminescence device, which contains the compound. An electronic equipment containing the organic electroluminescence device. A light emitting layer containing at least one host and at least one dopant, where the dopant contains the compound.

Abstract: Specific heterocyclic compounds and/or a material, preferably an emitter material, may be used for an organic electroluminescence device including such specific heterocyclic compound(s), e.g., of formula (I) Such a device may include such specific heterocyclic compounds, electronic equipment may include such a device, and a light emitting layer may include host(s) and dopant(s), wherein the dopant includes at least one of such specific heterocyclic compounds. The compound of formula (I) may be used in an organic electroluminescence device.