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

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

Abstract: The present invention relates to method for depositing an organic material for an organic light emitting device and an organic light emitting device manufactured thereby. The method includes the steps of: applying a premix in which a host and a dopant are premixed, to a first donor substrate; heating the premix by applying an electric field to the first donor substrate; depositing the host and the dopant separated into different layers on a second donor substrate, with the host or the dopant having a relatively low vaporization temperature first deposited from the premix onto the second donor substrate and then the dopant or the host having a relatively high vaporization temperature deposited later onto the second donor substrate; heating the host and the dopant by applying an electric field to the second donor substrate; and depositing the host and the dopant that are uniformly mixed on a target substrate.

Abstract: The present invention relates to method for depositing an organic material for an organic light emitting device and an organic light emitting device manufactured thereby. The method includes the steps of: applying a premix in which a host and a dopant are premixed, to a first donor substrate; heating the premix by applying an electric field to the first donor substrate; depositing the host and the dopant separated into different layers on a second donor substrate, with the host or the dopant having a relatively low vaporization temperature first deposited from the premix onto the second donor substrate and then the dopant or the host having a relatively high vaporization temperature deposited later onto the second donor substrate; heating the host and the dopant by applying an electric field to the second donor substrate; and depositing the host and the dopant that are uniformly mixed on a target substrate.