Abstract: Provided is an organic light-emitting element comprising: a first electrode; a second electrode provided to face the first electrode; and an organic material layer provided between the first electrode and the second electrode, in which the organic material layer comprises a layer comprising a compound of Formula 1: wherein: L1 is a direct bond, or a substituted or unsubstituted arylene or heteroarylene group; Ar1 is a substituted or unsubstituted aryl or heteroaryl group; R1 to R12 are each independently hydrogen, a nitrile group, a halogen, or a substituted or unsubstituted alkyl, silyl, aryl or heteroaryl group, or adjacent groups bond together to form a ring; and any two adjacent R1 to R4 bond together to form a substituted or unsubstituted aromatic ring, and a layer comprising a compound of Formula 2: wherein: Ar2 to Ar4 are each independently a substituted or unsubstituted aryl group having 6 to 20 carbon atoms, or -L2-Z.

Abstract: A memory system includes a memory device including a first area being refreshed according to a first refresh period and a second area begin refreshed according to a second refresh period longer than the first refresh period. The memory system also includes a memory controller configured to generate a write command and a write data corresponding to a first write request and a first data.

Abstract: The present specification provides a compound of Chemical Formula 1, and an organic light emitting device including the same. The compound of Chemical Formula 1 used in one or more organic material layers of an organic light emitting device provides enhanced efficiency, lowered driving voltage, and increased lifetime of the device.

Abstract: The present invention relates to an air purifier in which vertical rotation and horizontal rotation are performed simultaneously and independently and which has a stable structure.

Abstract: The present specification relates to a spiro compound and an organic electronic device including the same.

Abstract: The present specification relates to a multicyclic compound and an organic light-emitting device including the same. The multicyclic compound of Chemical Formula 1 used in one or more organic material layers of the organic light emitting device provides enhanced efficiency, decreased driving voltage and enhanced lifespan property of the organic light emitting device.

Abstract: The present disclosure provides a compound represented by the following Chemical Formula 1, and an organic light emitting device including the same. The compound is used as a material of an organic material layer of the organic light emitting device.

Abstract: Provided is an organic light-emitting device including: a first electrode; a second electrode provided to face the first electrode; and a first organic material layer and a second organic material layer provided between the first electrode and the second electrode, in which the first organic material layer includes a compound of Formula 1: wherein L1 to L3 are each independently a direct bond or a substituted or unsubstituted arylene group; and Ar1 to Ar3 are each independently a hydrogen, deuterium, or a substituted or unsubstituted aryl or heterocyclic group; and the second organic material layer includes a compound represented by of Formula 2: wherein L4 is a direct bond, or a substituted or unsubstituted arylene or divalent heterocyclic group; and Ar4 is a substituted or unsubstituted aryl, phosphine oxide or heterocyclic group.

Abstract: The present specification relates to a hetero-cyclic compound and an organic light emitting device including the same.

Abstract: Embodiments of the disclosure relate to a robot cleaner and a controlling method thereof, and more particularly, to a robot cleaner and a traveling algorithm of a robot cleaner having an improved structure. A robot cleaner of the disclosure includes a brush unit having a suction flow path, a body unit configured to have a driving device, and be coupled to the brush unit to be rotatable with respect to the brush unit and a redirection device configured to rotate the body unit relative to the brush unit, and the redirection device includes a rotation guide extending along an inner circumferential surface of the brush unit, a rotation driving source disposed in the body unit and generating power, and a power transmission member which moves along the rotation guide by the power transmitted from the rotation driving source and rotates the body unit with respect to the brush unit.

Abstract: Provided is an amine based compound of Chemical Formula 1: and an organic electroluminescent device comprising the same. The amine based compound can be used as a material of an organic material layer of an organic electroluminescent device, and can achieve an improvement of the efficiency, a low driving voltage and/or an improvement of the lifetime characteristic when applied to the organic electroluminescent device.

Abstract: The present disclosure relates to a novel compound represented by Chemical Formula 1 and an organic light emitting device using the same. The compound is used as a material of an organic material layer of the organic light emitting device.

Abstract: Provided is a compound of Chemical Formula 1: and an organic light emitting device using the same.

Abstract: An application producing method regarding a first and second application, the method includes receiving an application generation request related to a second application, the second application being subordinate to a first application, generating the second application and computer readable instructions related to a switch interface for selecting at least one of the first and second applications, the switch interface computer readable instructions related to the switch interface, which when executed by at least one application executing apparatus, causes the application executing apparatus to display the switch interface on at least one of the first and second applications, and when the switch interface is in a first state, the first application is controlled based on a first user input received by the at least one application executing apparatus, and when the switch interface is in a second state, the second application is controlled based on the first user input.

Abstract: Provided is an organic light emitting device.

Abstract: A computing system includes a processor that operates a plurality of virtual machines in which a plurality of operating systems are respectively executed. The processor executes a hypervisor that groups the plurality of virtual machines into a normal virtual machine group and a privilege virtual machine group, and that controls hardware accesses requested by the normal virtual machine group and the privilege virtual machine group. The processor executes a normal application in the normal virtual machine group, and executes a secure application in the privilege virtual machine group.