Abstract: A novel compound having excellent light emission and heat stability is disclosed. Also disclosed is an organic electroluminescent device having properties such as light emitting efficiency, an operation voltage, and a service life improved by including the compound in at least one organic layer of the device.

Abstract: The present invention relates to a novel compound having excellent functions, such as electron injection and transport and light emission functions, and an organic electroluminescence device. By using the novel compound in an organic material layer of the organic electroluminescence device, properties of the device such a light emitting efficiency, driving voltage, and life can be improved.

Abstract: The present disclosure relates to a novel organic compound which has excellent thermal stability, electron transporting ability, and light emitting ability, and to an organic EL device containing the same. As the organic compound is used in an organic material layer of the organic EL device, the thermal stability, luminous efficiency, driving voltage, and life of the device can be improved.

Abstract: A novel compound having excellent light emission and heat stability is disclosed. Also disclosed is an organic electroluminescent device having properties such as light emitting efficiency, an operation voltage, and a service life improved by including the compound in at least one organic layer of the device.

Abstract: The present disclosure relates to a novel organic compound which has excellent thermal stability, electron transporting ability, and light emitting ability, and to an organic EL device containing the same. As the organic compound is used in an organic material layer of the organic EL device, the thermal stability, luminous efficiency, driving voltage, and life of the device can be improved.

Abstract: The present invention relates to a novel compound and an organic electroluminescent device including the same, and by using the compound according to the present invention in an organic material layer, preferably a light emitting layer, of an organic electroluminescent device, luminous efficiency, driving voltage, lifetime and the like of the organic electroluminescent device may be enhanced.

Abstract: The present invention relates to a novel compound having excellent functions, such as electron injection and transport and light emission functions, and an organic electroluminescence device. By using the novel compound in an organic material layer of the organic electroluminescence device, properties of the device such a light emitting efficiency, driving voltage, and life can be improved.

Abstract: A container electronic seal device and a method of operating the container electronic seal device are provided. The container electronic seal device is installed on a door locking rod and a lock handle provided in a container door. The apparatus includes a body unit, a locking arm unit, and an electronic parts unit. The body unit is disposed around part of the door locking rod and part of the lock handle, and is provided with a through hole, a guide opening, and an access port. The locking arm unit rotates and fastens the lock handle inserted into the guide opening of the body unit. The electronic parts unit selectively performs locking and unlocking depending on whether a security authentication file of the external memory is normal and monitors illegitimate opening. The container electronic seal device is selectively locked and unlocked using the external memory storing a security authentication file.