Abstract: The present disclosure relates to an organic electroluminescent compound represented by Formula 1 and an organic electroluminescent device. The organic electroluminescent device according to the present disclosure can exhibit a low driving voltage and a high current efficiency by having different structures of the compounds comprised in the first hole transport layer, the second hole transport layer, and the third hole transport layer and comprising a fluorene-amine, benzofluorene-amine, or naphthofluorene-amine structure in the second hole transport layer.

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

Abstract: The present disclosure relates to a plurality of light-emitting materials comprising at least one of first compounds and at least one of second compounds, wherein the first compound is represented by formula 1, and the second compound is represented by formula 2, and an organic electroluminescent device having improved lifetime properties can be provided by comprising the plurality of light-emitting materials.

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

Abstract: The present disclosure relates to an organic electroluminescent compound and an organic electroluminescent device comprising the same. By comprising the organic electroluminescent compound according to the present disclosure as an organic electroluminescent material, an organic electroluminescent device having long lifespan characteristics can be provided.

Abstract: The present disclosure relates to a plurality of organic electroluminescent materials comprising at least one first compound and at least one second compound, and an organic electroluminescent device comprising the same. By comprising a specific combination of compounds, in which the first compound is represented by formula 1 and the second compound is represented by formula 2, it is possible to provide an organic electroluminescent device having improved lifetime properties.

Abstract: The present disclosure relates to an organic electroluminescent compound and an organic electroluminescent device comprising the same. The organic electroluminescent compound of the present disclosure may be comprised in a light-emitting layer, and is effective for producing an organic electroluminescent device having high luminescent efficiency and/or excellent lifespan characteristic.

Abstract: The present disclosure relates to an organic electroluminescent device and an organic electroluminescent compound. By comprising the compound according to the present disclosure or a specific combination of compounds according to the present disclosure, it is possible to produce an organic electroluminescent device having lower driving voltage, higher luminous efficiency and/or improved lifetime properties, compared to the conventional organic electroluminescent device.

Abstract: The present disclosure relates to a plurality of host materials comprising at least one first host compound represented by formula 1 and at least one second host compound represented by formula 2, wherein the first host compound and the second host compound are different from each other, and an organic electroluminescent device comprising the same. In addition, present disclosure relates to a plurality of host materials comprising at least one first host compound and at least one second host compound, wherein the first host compound and the second host compound are represented by formula 2?, and wherein the first host compound and the second host compound are different from each other, and an organic electroluminescent device comprising the same. An organic electroluminescent device with significantly improved driving voltage, current efficiency and/or lifespan properties can be provided by comprising a specific combination of compounds according to the present disclosure as host materials.

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 the organic electroluminescent compound according to the present disclosure or by comprising a specific combination of compounds according to the present disclosure as a plurality of host materials, it is possible to produce an organic electroluminescent device having improved driving voltage, luminous efficiency, and/or lifetime properties compared to the conventional organic electroluminescent devices.

Abstract: The present disclosure relates to a plurality of host materials comprising at least one first host compound represented by formula 1 and at least one second host compound represented by formula 2, and an organic electroluminescent device comprising the same. By comprising a specific combination of compounds according to the present disclosure as a host material, an organic electroluminescent device having significantly improved lifespan characteristics can be provided.

Abstract: The present disclosure provides a method for preparing a deuterated organic compound in good yield even though a reduced amount of benzene-D6 is used by using a solvent comprising a benzene-based compound not substituted with deuterium or partially substituted with deuterium.

Abstract: The present disclosure relates to an organic electroluminescent device. The organic electroluminescent device of the present disclosure may exhibit low voltage, high efficiency, and/or long lifespan by including a light-emitting layer comprising a specific combination of the compounds, and an electron transport zone.

Abstract: An organic light emitting diode and an organic light emitting device including the same are discussed. The organic light emitting diode can include a first electrode, a second electrode facing the first electrode, and a first emitting part including a green emitting material layer and positioned between the first and second electrodes. The green emitting material layer can include a first host, a second host and a dopant, wherein at least one of the first host and the second host is deuterated.

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

Abstract: The present disclosure relates to an organic electroluminescent compound represented by formula 1? or 2?, a plurality of host materials comprising at least one first host compound and at least one second host compound, and an organic electroluminescent device comprising the same. By comprising the organic electroluminescent compound or the specific combination of compounds according to the present disclosure as a host material(s), it is possible to provide an organic electroluminescent device having improved driving voltage, luminous efficiency, power efficiency and/or lifetime properties.

Abstract: The present disclosure relates to an organic electroluminescent device. The organic electroluminescent device according to the present disclosure may exhibit low voltage, high efficiency, and/or long lifespan by including a light-emitting layer and an electron buffer layer comprising a specific organic electroluminescent material.

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

Abstract: The present disclosure relates to an organic electroluminescent compound represented by formula 1, a plurality of host materials comprising a combination of specific compounds, and an organic electroluminescent device comprising the same. By comprising the organic electroluminescent compound or the specific combination of compounds according to the present disclosure as a host material and/or an electron transport zone material, it is possible to provide an organic electroluminescent device having improved driving voltage, luminous efficiency, and/or lifetime properties, compared to the conventional organic electroluminescent device.

Abstract: The present disclosure relates to a plurality of light-emitting materials comprising at least one of first compounds and at least one of second compounds, wherein the first compound is represented by formula 1, and the second compound is represented by formula 2, and an organic electroluminescent device having improved lifetime properties can be provided by comprising the plurality of light-emitting materials.