Abstract: The present disclosure relates to a boron compound useful in an organic light-emitting diode and an organic light-emitting diode comprising same and, more particularly, to a boron compound represented by any one of [Chemical Formula A] to [Chemical Formula C], wherein [Chemical Formula A] to [Chemical Formula C] are as defined in the description.

Abstract: The present invention relates to an organic light-emitting compound represented by [chemical formula A] or [chemical formula B], which can be used in an organic light-emitting device, and an organic light-emitting device comprising same, wherein [chemical formula A] and [chemical formula B] are the same as described in the detailed description of the invention.

Abstract: A fluid silencer includes: an expansion pipe disposed on a pipe through which a fluid containing noise sources flows and having an accommodation space therein; a viscous fluid received in the accommodation space; a noise introducing member disposed between the pipe and the expansion pipe to seal the accommodation space and allowing the noise sources to be introduced into the accommodation space therethrough; at least one partition member disposed in the accommodation space and dividing the accommodation space in a flow direction of the fluid; multiple baffle members disposed on one surface of the partition member and forming multiple sound absorbing spaces into which the noise sources introduced into the accommodation space are dispersedly introduced; and an elastic member disposed between the partition member and the baffle members and contracted/expanded by the viscous fluid entering/leaving the sound absorbing spaces as the noise sources are introduced into the sound absorbing spaces.

Abstract: A method for manufacturing steamed sweet potatoes, includes: a first step of preparing a sweet potato, a second step of peeling the washed sweet potato, a third step of forming the peeled sweet potato into a cube shape, a fourth step of drying the formed sweet potato at a temperature of 15 to 25° C., and a fifth step of putting the dried sweet potato in a retort and heating it, wherein, one of the sweet potato varieties Sodammi, Beniharuka, or Hofungmi is selected for this method.

Abstract: The present invention relates to an anthracene derivative compound having a characteristic structure in which an aryl group is introduced into a skeletal structure in which deuterium-substituted phenyl and anthracene are linked. In addition, the present invention relates to a high-efficiency, long-life organic light-emitting device of which the luminous efficiency and lifetime characteristics are significantly improved by employing a polycyclic compound having a characteristic structure as a dopant for a light-emitting layer while employing said compound as a host for the light-emitting layer.

Abstract: The present invention relates to an organic light-emitting device comprising, in a light-emitting layer thereof: a compound represented by [chemical formula A]; and a compound represented by any one of [chemical formula D-6] and [chemical formula D-7], wherein [chemical formula A], [chemical formula D-6], and [chemical formula D-7] are as described in the detailed description of the invention.

Abstract: The present invention relates to an organic light-emitting diode in which a light-emitting layer comprises a compound represented by [chemical formula A] as a host and comprises a compound represented by [chemical formula 3], [chemical formula 4], [chemical formula 3-1] to [chemical formula 4-3] as a dopant, wherein [chemical formula 3], [chemical formula 4], [chemical formula 3-1] to [chemical formula 4-3] are the same as those described in the detailed description of the invention.

Abstract: A pixel of a display device may pre-charge a light emitting element in non-emission periods immediately before emission periods by varying a voltage level of an initialization voltage. As a result, a luminance non-uniformity phenomenon that may occur as the result of a deterioration deviation of the light emitting element may be removed or reduced.

Abstract: An object of the present invention is to provide a material for organic EL elements, the material being excellent in hole injecting/transporting performance, electron-blocking capability, stability in the form of a thin film, and durability. Another object of the present invention is to provide an organic EL element having high efficiency, a low driving voltage, and a long lifespan, by combining the aforementioned material with various materials for organic EL elements, the materials being excellent in hole/electron injecting/transporting performance, electron-blocking capability, stability in the form of a thin film, and durability, such that the properties of the individual materials can be effectively exhibited.

Abstract: The provided is an ultra-wideband electromagnetic wave absorber having a hexagonal double layer structure, and in the ultra-wideband electromagnetic wave absorber, the first conductive pattern disposed on the top of the first dielectric layer and the second conductive pattern disposed on the top of the second dielectric layer are arranged in an up-down double layer structure, thereby expanding the electromagnetic wave absorption bandwidth, and even when applied to a corner or a curved structure forming 60° or 120° by hexagonal unit cells, the unit cells can be periodically arranged at the same interval. In addition, since dielectrics with a difference of less than 10% in dielectric constant in a vacuum state have a relatively low specific gravity, the overall weight can be made very light by using such dielectrics in the first dielectric layer and the second dielectric layer.

Abstract: The present invention relates to an organic light-emitting device in which a light-emitting layer included in the organic light-emitting device comprises: a compound represented by [chemical formula A]; and a compound represented by any one of [chemical formula D-1] to [chemical formula D-7], wherein [chemical formula A] and [chemical formula D-1] to [chemical formula D-7] are as set forth in the detailed description of the invention.

Abstract: According to the present invention, a drone control system includes: a flying drone; a cloud server configured to transmit and receive information to and from the drone by wireless communication; and a ground control system configured to establish a flight plan of the drone by connecting the drone and the cloud server by the wireless communication.

Abstract: The present invention relates to compositions obtained by mixing specific electroactive fluoro-terpolymers and specific electroactive fluorinated copolymers. The invention also concerns liquid formulations (inks) that can be used through conventional processing technologies for printed electronics and microelectronics in a safe environment, based on these compositions. Another aspect of this invention are the films manufactured using these formulations, and the devices comprising at least one layer of these films.

Abstract: The present disclosure relates to an apparatus for accommodating copper foil. The apparatus includes an accommodation body having an accommodation space which accommodates copper foil wound on a core, a support portion coupled to the accommodation body and configured to support both ends of the core, and an elastic member disposed between the support portion and the core and configured to support the core. Here, the elastic member includes a body portion, a plurality of first protrusions arranged on a top surface of the body portion and extending in a longitudinal direction of the core, and a plurality of second protrusions arranged on a bottom surface of the body portion and extending in a direction perpendicular to the extending direction of the plurality of first protrusions. Accordingly, vibrations may be buffered in a frequency band of vibrations occurring in a transportation process.

Abstract: A battery module has an improved structure to control the discharge of a flame generated in the battery module. A battery pack and a vehicle can include the battery module. The battery module includes a cell assembly having a plurality of battery cells stacked side by side and having a taping member partially attached to at least a top sealing portion; a module terminal electrically connected to the cell assembly; and a module case configured to have an outer side at which the module terminal is installed, accommodate the cell assembly in an inner space thereof, and have a top hole communicating with the inner space and formed at an upper side thereof. At the top of the cell assembly, at least a part of an unattached region of the taping member is located in a portion where the top hole is formed.

Abstract: The present invention relates to a high-efficiency organic light-emitting device having excellent light-emitting characteristics in light-emitting efficiency, etc. by employing an anthracene derivative compound having a characteristic structure as a host in a light-emitting layer. By using the high-efficiency organic light-emitting device, according to the present invention, the organic light-emitting device can be utilized for various display devices such as flat panel, flexible, and wearable displays as well as a lighting device.

Abstract: Disclosed is an organic compound represented by any one of Chemical Formulas A to E and an organic light-emitting diode including the same. Chemical Formulas A to E are as described in the specification.

Abstract: A sound wave delivery structure of the present invention comprises unit structure cells each formed to have a cubic shape and comprising a column portion formed on a region corresponding to sides, and a space portion formed in an internal region surrounded by the column portion. There are a plurality of unit structure cells which are successively arranged in a first direction, in which sound waves are delivered, and a second direction crossing the first direction.

Abstract: An example electronic device includes a housing; a touchscreen display; a microphone; at least one speaker; a button disposed on a portion of the housing or set to be displayed on the touchscreen display; a wireless communication circuit; a processor; and a memory. When a user interface is not displayed on the touchscreen display, the electronic device enables a user to receive a user input through the button, receives user speech through the microphone, and then provides data on the user speech to an external server. An instruction for performing a task is received from the server. When the user interface is displayed on the touchscreen display, the electronic device enables the user to receive the user input through the button, receives user speech through the microphone, and then provides data on the user speech to the external server.

Abstract: The present invention relates to a novel heterocyclic compound which can be used for an organic light-emitting device, and an organic light-emitting device comprising same, wherein [Chemical Formula A] above is as set forth in the detailed description of the invention.