An organic EL device is provided, including at least an anode, a hole transport layer, a light-emitting layer, an electron transport layer, and a cathode in this order, wherein the hole transport layer contains an arylamine compound represented by the following formula (1), wherein Ar.sub.1 to Ar.sub.8 and n1 are defined in the specification, and the electron transport layer contains a compound having a benzoazole ring structure represented by the following formula (2), wherein Ar.sub.9, Ar.sub.10, X, Y.sub.1, Z.sub.1 and Z.sub.2 are defined in the specification. ##STR00001## ##STR00002##

An organic EL device is provided, including at least an anode, a hole transport layer, a light-emitting layer, an electron transport layer, and a cathode in this order, wherein the hole transport layer contains an arylamine compound represented by the following formula (1), wherein Ar.sub.1 to Ar.sub.8 and n1 are defined in the specification, and the electron transport layer contains a compound having a benzoazole ring structure represented by the following formula (2), wherein Ar.sub.9, Ar.sub.10, X, Y.sub.1, Z.sub.1 and Z.sub.2 are defined in the specification. ##STR00001## ##STR00002##

An organic electroluminescence device includes a first electrode, a hole transport region disposed on the first electrode, an emission layer disposed on the hole transport region, an electron transport region disposed on the emission layer, and a second electrode disposed on the electron transport region. The hole transport region includes an amine compound represented by Formula 1, thereby exhibiting high light emission efficiency.

Provided is an organic light emitting device including a light emitting layer comprising a compound of Chemical Formula 1 and a first organic material layer comprising a compound of Chemical Formula 2:

##STR00001## wherein: Cy1 to Cy5 are each independently one selected from among a substituted or unsubstituted: aromatic hydrocarbon ring, aliphatic hydrocarbon ring, and aromatic hetero ring, or a ring in which two or more rings selected from the above group are fused, one or more of Cy1 to Cy5 are a ring of Chemical Formula 1-A:

##STR00002## one to three of a* to d* are a position fused to or linked to Chemical Formula 1;

##STR00003## L1 to L3 are each independently a direct bond or a substituted or unsubstituted: arylene or divalent heterocyclic group; and Ar1 and Ar2 are each independently a substituted or unsubstituted: aryl or heterocyclic group.

Provided are an organic electric element comprising as a phosphorescent host material, a mixture of the compounds of Formula (1) and Formula (2), and an organic electronic device or apparatus thereof for achieving a high luminous efficiency, a low driving voltage, and an improved lifespan.

Provided are an organic electric element comprising as a phosphorescent host material, a mixture of the compounds of Formula (1) and Formula (2), and an organic electronic device or apparatus thereof for achieving a high luminous efficiency, a low driving voltage, and an improved lifespan.

Provided are: a compound that further improves the capability of an organic EL device, an organic electroluminescent device having a further improved device capability, and an electronic device including the organic electroluminescent device. Precisely provided are: a compound represented by the following formula (1A) or formula (1B) (wherein the symbols are as defined in the description), an organic electroluminescent device containing the compound, and an electronic device including the organic electroluminescent device.

##STR00001##

Provided are: a compound that further improves the capability of an organic EL device, an organic electroluminescent device having a further improved device capability, and an electronic device including the organic electroluminescent device. Precisely provided are: a compound represented by the following formula (1A) or formula (1B) (wherein the symbols are as defined in the description), an organic electroluminescent device containing the compound, and an electronic device including the organic electroluminescent device.

##STR00001##

A compound may improve the capability of an organic EL device, and an organic electroluminescent device including such compound may have improved capability and may be included in electronic devices. Such compounds may be of formula (1A) or formula (1B) (wherein the symbols are as defined in the description)

##STR00001##

organic electroluminescent device(s) may contain such compound(s), and electronic device(s) may include such organic electroluminescent device(s).

The disclosure relates to organic electroluminescent elements, compounds for use in the elements, and devices using the elements, which include a compound represented by the following General Formula (1): ##STR00001##
where R.sup.1 to R.sup.3 and R.sup.6 to R.sup.8 each independently represents a hydrogen atom, which may be a deuterium atom, or a substituent with a Hammett substituent constant σ.sub.p value of −0.15 or more, R.sup.5, R.sup.9 and R.sup.10 each independently represents a hydrogen atom or a substituent, L.sup.1 represents a divalent linking group, DG.sup.1 represents a donor group, and n1 represents 1 or 2, and where R.sup.1 to R.sup.3, R.sup.5 to R.sup.10, L.sup.1, and DG.sup.1 are not bound to each other to form a ring.