Abstract: The present disclosure relates to a plurality of host materials comprising a first host material having a compound represented by formula 1, and a second host material having a compound represented by formula 2, and an organic electroluminescent device comprising the same. By comprising a specific combination of compounds of the present disclosure as host materials, it is possible to provide an organic electroluminescent device having long lifetime properties while having an equivalent or improved level of power efficiency compared to conventional organic electroluminescent devices.

Abstract: The present disclosure relates to an organic electroluminescent compound, a plurality of host materials, and an organic electroluminescent device comprising the same. By comprising the organic electroluminescent compound and the plurality of host materials, an organic electroluminescent device can be provided which has improved luminous efficiency characteristics and/or lifetime properties compared to the conventional organic electroluminescent devices.

Abstract: The present disclosure relates to a plurality of host materials, an organic electroluminescent compound, and an organic electroluminescent device comprising the same. By comprising a compound according to the present disclosure, or by comprising a specific combination of compounds according to the present disclosure as a plurality host materials, an organic electroluminescent device having improved driving voltage, luminous efficiency, and/or lifetime properties compared to conventional organic electroluminescent devices can be provided.

Abstract: The present disclosure relates to an organic electroluminescent device comprising a first electrode; a second electrode opposing the first electrode; a light-emitting layer between the first electrode and the second electrode; a hole transport band between the first electrode and the light-emitting layer, wherein the hole transport band comprises a compound represented by Formula 1, and the light-emitting layer comprises a compound represented by Formulas 2 and 3. The organic electroluminescent device according to the present disclosure can exhibit high current efficiency by using the compounds represented by Formulas 1, 2, and 3.

Abstract: The present disclosure relates to a plurality of host materials comprising a first host material comprising a compound represented by formula 1 and a second host material comprising a compound represented by formula 2, and an organic electroluminescent device comprising the same. By comprising a specific combination of compounds as a host material, an organic electroluminescent device having a lower driving voltage and/or higher luminous efficiency and/or improved lifespan properties compared to a conventional organic electroluminescent device may be provided.

Abstract: The present disclosure relates to a plurality of host materials comprising a first host material comprising a compound represented by formula 1, and a second host material comprising a compound represented by formula 2, and an organic electroluminescent device comprising the same. By comprising a specific combination of compounds as a host material, it is possible to provide an organic electroluminescent device having higher luminous efficiency and/or improved lifespan characteristics compared to conventional organic electroluminescent devices.

Abstract: The present disclosure relates to an organic electroluminescent device comprising an anode; a cathode; and an organic material layer positioned between the anode and the cathode, wherein the organic material layer comprises two or more light-emitting layers disposed between the anode and the cathode, and the two or more light-emitting layers comprise a first light-emitting layer between the anode and the cathode; and a second light-emitting layer disposed between the first light-emitting layer and the cathode. The first light-emitting layer and the second light-emitting layer are in direct contact with each other, and at least one of the first light-emitting layer and the second light-emitting layer comprises a plurality of host materials. According to the present disclosure, an organic electroluminescent device with improved device characteristics can be provided.

Abstract: The present disclosure relates to a plurality of host materials and an organic electroluminescent device comprising the same. By comprising the host materials according to the present disclosure, an organic electroluminescent device having low driving voltage and/or a high efficiency and/or long lifespan can be provided.

Abstract: The present disclosure relates to a plurality of host materials comprising a first host material comprising a compound represented by formula 1, and a second host material comprising a compound represented by formula 2, and an organic electroluminescent device comprising the same. By comprising a specific combination of compounds of the present disclosure as host materials, it is possible to provide an organic electroluminescent device having higher luminous efficiency and/or longer lifespan properties as compared with a conventional organic electroluminescent device.

Abstract: The present disclosure relates to a plurality of host materials and an organic electroluminescent device comprising the same. By comprising the specific combination of compounds according to the present disclosure as a plurality of host materials according to the present disclosure, it is possible to provide an organic electroluminescent device having improved driving voltage, luminous efficiency, and/or lifetime property compared to the conventional organic electroluminescent devices.

Abstract: The present disclosure relates to an organic electroluminescent device. The organic electroluminescent device of the present disclosure can provide a low driving voltage and excellent luminous efficiency by comprising a specific combination of a host compound and a hole transport material.

Abstract: The present disclosure relates to a plurality of host materials and organic electroluminescent devices comprising the same. The present disclosure may provide a plurality of host materials having a composition favorable to thermal denaturation due to a low deposition temperature, while improving hole properties and electronic properties of HOMO and LUMO, by comprising separate compounds represented by formulas 1 and 2 into a light-emitting layer. By comprising the plurality of host materials of the present disclosure, it is possible to provide an organic electroluminescent device having a lower driving voltage, higher luminous efficiency and/or longer lifetime.

Abstract: The present disclosure relates to an organic electroluminescent compound, a plurality of host materials, and an organic electroluminescent device comprising the same. By comprising the organic electroluminescent compound and the plurality of host materials, an organic electroluminescent device can be provided which has improved luminous efficiency characteristics compared to the conventional organic electroluminescent devices.

Abstract: The present invention relates to an organic electroluminescent device comprising at least one light-emitting layer between an anode and a cathode, wherein the light-emitting layer comprises a host and a dopant; the host consists of multi-component host compounds; at least a first host compound of the multi-component host compounds is a specific bicarbazole derivative containing an aryl group, and a second host compound is a specific carbazole derivative including a nitrogen-containing heteroaryl group. According to the present invention, an organic electroluminescent device using the multi-component host compounds has a high efficiency and long lifespan compared to the conventional organic electroluminescent device using one component of a host.

Abstract: The present disclosure relates to a plurality of host materials comprising a first host material comprising a compound represented by the following formula 1, and a second host material comprising a compound represented by the following formula 2, and an organic electroluminescent device comprising the same. By comprising a specific combination of compounds as a host material, it is possible to provide an organic electroluminescent device having higher luminous efficiency and/or improved lifespan characteristics compared to conventional organic electroluminescent devices.

Abstract: The present disclosure relates to a plurality of host materials comprising a first host material comprising a compound represented by the following formula 1, and a second host material comprising a compound represented by the following formula 2, and an organic electroluminescent device comprising the same. By comprising a specific combination of compounds as a host material, it is possible to provide an organic electroluminescent device having higher luminous efficiency and/or improved lifespan characteristics compared to conventional organic electroluminescent devices.

Abstract: The present disclosure relates to an organic electroluminescent compound, a plurality of host materials, and an organic electroluminescent device comprising the same. By comprising a compound or a host material according to the present disclosure as host materials, an organic electroluminescent device having high luminous efficiency and/or long lifespan characteristics can be provided.

Abstract: The present disclosure relates to an organic electroluminescent device. By comprising a compound and/or an organic electroluminescent material according to the present disclosure, an organic electroluminescent device exhibiting higher luminous efficiency and/or longer lifespan characteristics compared to conventional organic electroluminescent devices can be provided.

Abstract: The present disclosure relates to an organic electroluminescent compound represented by Formula 1, an organic electroluminescent material comprising a compound represented by Formula 1 and a compound represented by Formula 2, and an organic electroluminescent device comprising these. The organic electroluminescent device having improved driving voltage, luminous efficiency and/or lifetime characteristics can be provided by comprising the organic electroluminescent compound, or the organic electroluminescent material of the present disclosure.

Abstract: The present disclosure relates to an organic electroluminescent compound, a plurality of host materials, and an organic electroluminescent device comprising the same. By comprising the organic electroluminescent compound according to the present disclosure, an organic electroluminescent device having long lifespan properties could be prepared, and by comprising a plurality of host materials according to the present disclosure, an organic electroluminescent device having long lifespan properties could be prepared.