Abstract: The present disclosure relates to a display panel and its repair method. The display panel may include: a first sub-pixel including a first-first light-emitting element and a first-second light-emitting element; a second sub-pixel including a second-first light-emitting element and a second-second light-emitting element; a first cathode line connected to at least one cathode electrode among a cathode electrode of the first-first light-emitting element and a cathode electrode of the first-second light emitting element, and extended toward the second sub-pixel; and a second cathode line connected to at least one cathode electrode among a cathode electrode of the second-first light-emitting element and a cathode electrode of the second-second light emitting element, and extended toward the first sub-pixel.

Abstract: An armrest device for a vehicle includes a tray module configured to provide a cup holder function, an article storage function, and a table function; a frame module configured to enclose a periphery of the tray module and coupled to a rear seat of the vehicle; and a cover module configured to cover the tray module. The armrest device enables implementation of an arm rest function for allowing a passenger to put an arm on an armrest, as well as the cup holder function, the article storage function, and the table function utilizing a first slide cover having no vertically-extending hole, and a second slide cover formed with a cup holder hole.

Abstract: Disclosed are an electrochemical hybrid catalyst that has a configuration in which two species of single atomic metals, that is, nickel (Ni) and iron (Fe), each bonded to (coordinated with) nitrogen in a nitrogen-doped carbon nanostructure, are adjacent to each other and are indirectly linked via nitrogen to form a catalyst site or an active site and thus exhibits high carbon monoxide selectivity and current density at a low overpotential during reduction reaction for converting carbon dioxide into carbon monoxide, and a carbon dioxide conversion system using the same.

Abstract: An electrochemical hybrid catalyst has a structure in which a nitrogen-doped carbon nanostructure (N—C) composite is loaded or decorated with two single atom transition metals indirectly linked adjacent to each other, and thus exhibits high carbon monoxide selectivity and current density at a low overpotential during reduction reaction for converting carbon dioxide into carbon monoxide, and a carbon dioxide conversion system uses the same.

Abstract: Disclosed are an electrochemical catalyst capable of lowering the overpotential of the oxygen evolution reaction (OER) during a water splitting reaction in spite of using inexpensive metals (specifically, base metals) instead of conventional noble metal catalysts in the complex water-splitting reactions that require high overpotential, and a water splitting system using the same.

Abstract: Disclosed are an electrochemical catalyst capable of lowering the overpotential of the oxygen evolution reaction (OER) during a water splitting reaction even with a very small amount of noble metal in the complicated water splitting reaction that requires high overpotential, and a water splitting system using the same.