Abstract: Provided are a composition for an organic optoelectronic device, and an organic optoelectronic device including the same, and a display device, the composition for an organic optoelectronic device including a first compound, a second compound, and a third compound, wherein the first compound is represented by Chemical Formula I or Chemical Formula II, the second compound is represented by Chemical Formula III, and the third compound is represented by Chemical Formula IV. Details of Chemical Formula I, Chemical Formula II, Chemical Formula III and Chemical Formula IV are as described in the specification.

Abstract: A compound for an organic optoelectronic device, a composition for an organic optoelectronic device including the same, an organic optoelectronic device, and a display device, the compound being represented by Chemical Formula 1:

Abstract: A composition for an organic optoelectronic device an organic optoelectronic device, and a display device, the composition including a first compound; a second compound; and a third compound, wherein the first compound, the second compound, and the third compound are different from each other, the first compound is represented by Chemical Formula I, the second compound is represented by Chemical Formula I, and the third compound is represented by Chemical Formula II or Chemical Formula III:

Abstract: The present disclosure relates to a pressure swing adsorption apparatus for hydrogen purification from decomposed ammonia gas and a hydrogen purification method using the same, and more particularly, the pressure swing adsorption apparatus of the present disclosure includes a plurality of adsorption towers including a pretreatment unit and a hydrogen purification unit wherein the adsorption towers of the pretreatment unit and the hydrogen purification unit are packed with different adsorbents, thereby achieving high purity hydrogen purification from mixed hydrogen gas produced after ammonia decomposition, making it easy to replace the adsorbent for ammonia removal, minimizing the likelihood that the lifetime of the adsorbent in the hydrogen purification unit is drastically reduced by a very small amount of ammonia, and actively responding to a large change in ammonia concentration in the raw material.

Abstract: The present disclosure is directed to providing a battery pack, which may output a current that satisfies the operating specifications of a load even over a wide voltage range by including a plurality of current paths. In addition, according to an aspect of the present disclosure, since a current path corresponding to an input voltage range is automatically selected, there is an advantage of providing a battery pack compatible with an input of a wide voltage range.

Abstract: A display apparatus, including a chassis, a display panel provided on a first side of the chassis, a connection unit coupled to a second side of the chassis, the connection unit including a bracket link configured to connect to a stand, a rear cover provided on the second side of the chassis, the rear cover including a first through hole through which the bracket link extends to connect to the stand, and wherein the connection unit is configured to perform at least one of tilting and sliding of the chassis with respect to the stand by movement of the bracket link along the first through hole.

Abstract: A display apparatus, including a chassis, a display panel provided on a first side of the chassis, a connection unit coupled to a second side of the chassis, the connection unit including a bracket link configured to connect to a stand, a rear cover provided on the second side of the chassis, the rear cover including a first through hole through which the bracket link extends to connect to the stand, and wherein the connection unit is configured to perform at least one of tilting and sliding of the chassis with respect to the stand by movement of the bracket link along the first through hole.

Abstract: A display apparatus, including a chassis, a display panel provided on a first side of the chassis, a connection unit coupled to a second side of the chassis, the connection unit including a bracket link configured to connect to a stand, a rear cover provided on the second side of the chassis, the rear cover including a first through hole through which the bracket link extends to connect to the stand, and wherein the connection unit is configured to perform at least one of tilting and sliding of the chassis with respect to the stand by movement of the bracket link along the first through hole.

Abstract: A display apparatus, including a chassis, a display panel provided on a first side of the chassis, a connection unit coupled to a second side of the chassis, the connection unit including a bracket link configured to connect to a stand, a rear cover provided on the second side of the chassis, the rear cover including a first through hole through which the bracket link extends to connect to the stand, and wherein the connection unit is configured to perform at least one of tilting and sliding of the chassis with respect to the stand by movement of the bracket link along the first through hole.