Abstract: Provided is a novel compound of Chemical Formula 1: wherein Ar1 and Ar2 are each independently a substituted or unsubstituted C6-15 aryl, R1 and R2 are each independently hydrogen or deuterium, n1 is an integer of 1 to 7, and n2 is an integer of 1 to 6. Also provided is an organic light-emitting device including the compound. When a compound of Chemical Formula 1 is used as a material for hole injection, hole transport, light emission, or electron transport and injection of an organic electroluminescent device, a device having low voltage, high efficiency, and long lifetime characteristics can be obtained.

Abstract: Provided is a novel compound of Chemical Formula 1: wherein in Chemical Formula 1: Ar1 is a substituted or unsubstituted C6-20 aryl; Ar2 is a substituted or unsubstituted phenyl or a substituted or unsubstituted naphthyl; L is phenylene or naphthalenediyl, wherein the phenylene or naphthalenediyl is unsubstituted or substituted with deuterium or a C6-60 aryl; R1 and R2 are each independently hydrogen or deuterium; n1 is an integer of 0 to 6; and n2 is an integer of 0 to 8, and an organic light emitting device including the same. When compounds of Chemical Formula 1 are applied to the light emitting layer of an organic light emitting device, a device having low voltage, high efficiency, and long lifetime characteristics can be obtained.

Abstract: An organic light emitting device having improved driving voltage, efficiency and lifetime is provided. The organic light emitting device comprises an anode, a cathode, and a light emitting layer between the anode and the cathode, and the light emitting layer comprises a compound represented by Chemical Formula 1, and a compound represented by Chemical Formula 2 or 3.

Abstract: Disclosed herein is a method of supporting implant surgery in a server, which includes obtaining a subject's oral CT image scanned with a guide model inserted into an oral cavity of the subject, the guide model being manufactured to a certain standard to group human teeth in any range so that the teeth belong to at least one group and to cover a tooth position of a corresponding group, the guide model including a marker made of a radiopaque or radiation semipermeable material, loading a library as information about the standard of the guide model, identifying the marker in the oral CT image, and generating a library matching CT image by matching the oral CT image with the library based on the marker included in the library and the marker identified in the oral CT image, and planning implant surgery of the subject using the library matching CT image.

Abstract: An organic light emitting device comprising an anode, a cathode, and a light emitting layer between the anode and the cathode, the light emitting layer including a compound represented by Chemical Formula 1 and a compound represented by Chemical Formula 2, and having improved driving voltage, efficiency and lifetime is provided.

Abstract: A method, which is performed by at least one processor, includes: displaying a currently running application list in response to a first user input; generating a recommended application set including one or more recommended applications for configuring a split screen for a first application included in the currently running application list; displaying the recommended application set for the first application at a position adjacent to the first application; selecting, based on a second user input, a recommended application in the recommended application set for the first application; configuring a split screen including the first application and the selected recommended application; and automatically displaying the split screen.

Abstract: A method of performing chatroom transition, performed by a user terminal is provided. The method may include: continuously displaying, while a screen of a first chatroom that is active is displayed on a user terminal, a first notification bar indicating at least one first new message occurring in a second chatroom; and activating the second chatroom and displaying a screen of the second chatroom, instead of the screen of the first chatroom, in response to a first user input to select the first notification bar.

Abstract: Proposed is a polyolefin resin having excellent processability, toughness, and bubble stability, thereby being useful for molding into shrinkage films, agricultural films, etc. A method of preparing the same polyolefin resin is also proposed.

Abstract: An input sensing device includes a sensor that includes a plurality of first electrodes and a plurality of second electrodes, and a sensor driver that operates in a first sensing mode and a second sensing mode. During the first sensing mode, the sensor driver generates a first sensing signal by transmitting transmission signals to the sensor and receiving reception signals from the sensor. During the second sensing mode, the sensor driver generates a second sensing signal by transmitting the transmission signals to the sensor and receiving the reception signals from the sensor. The sensor driver selects one of a plurality of compensation maps based on the first sensing signal, compensates for the second sensing signal based on the selected compensation map, and outputs the compensated sensing signal.

Abstract: An electronic device includes a sensor in which a sensing area and a peripheral area proximate to the sensing area are defined, and a sensor driver driving the sensor. The sensor includes first electrodes disposed in the sensing area and arranged along a first direction, and second electrodes arranged along a second direction intersecting the first direction. A boundary extending along the second direction is defined in the sensing area. The sensor driver simultaneously outputs a plurality of boundary transmit signals to a plurality of boundary electrodes disposed in a boundary area including the boundary among the plurality of first electrodes.

Abstract: A display device includes a display panel, an input sensor disposed on the display panel and sensing an input during a sensing frame period, a display controller receiving a vertical synchronization signal and a horizontal synchronization signal and controlling driving of the display panel in response to the vertical synchronization signal and the horizontal synchronization signal, and a sensor controller providing a transmission signal including a plurality of sampling periods to the input sensor. The display controller provides frequency information of a display frame period to the sensor controller using at least one of the vertical synchronization signal and the horizontal synchronization signal, and the sensor controller controls the number of the sampling periods of the sensing frame period based on the frequency information.

Abstract: Provided is an antibacterial composition comprising at least one compound including a quaternary ammonium structure having an acrylate group or a methacrylate group, and having an antibacterial strength A of 90% or more against at least one strain selected from Gram-positive bacteria and Gram-negative bacteria, and an acute oral toxicity dose LD50 of 300 mg/Kg or more, where the antibacterial strength A equals (1?Asample/AReference)×100, where Asample equals an absorbance of an inoculated medium solution incubated with the antibacterial composition, and AReference equals an absorbance of an inoculated medium solution incubated without addition of the antibacterial composition.

Abstract: Provided is an organic light emitting device having improved driving voltage, efficiency and lifetime, the device comprising: an anode; a cathode; and a light emitting layer therebetween, wherein the light emitting layer comprises a compound of Chemical Formula 1 and a compound of Chemical Formula 2: wherein: any one of R?1 to R?12 is Chemical Formula 3, and the rest are hydrogen or deuterium: R1 is hydrogen, deuterium, or a substituted or unsubstituted C6-30 aryl or C2-60 heteroaryl containing one or more of N, O and S; Ar1, Ar2, Ar?1, and Ar?2 are each independently a substituted or unsubstituted C6-60 aryl or C2-60 heteroaryl containing one or more of N, O and S; and the other substituents are as defined in the specification.

Abstract: Provided is an organic light emitting device comprising an anode; a cathode; and a light emitting layer therebetween, the light emitting layer comprising a compound of Chemical Formula 1 and a compound of Chemical Formula 2, the device having improved driving voltage, efficiency and lifetime: wherein: any one of R?1 to R?12 is Chemical Formula 3, and the rest are hydrogen or deuterium: Ar1, Ar2, Ar?1, and Ar?2 are each independently a substituted or unsubstituted C6-60 aryl or C2-60 heteroaryl containing any one or more of N, O and S; R1 is hydrogen, deuterium, or a substituted or unsubstituted C6-60 aryl or C2-60 heteroaryl containing any one or more of N, O and S; and the other substituents are as defined in the specification.

Abstract: Provided is an organic light-emitting device having improved driving voltage, efficiency and lifespan, the device comprising an anode, a cathode, and a light emitting layer including a light emitting layer that includes a compound of Chemical Formula 1 and a compound of Chemical Formula 2 between the anode and the cathode: where Ar1 and Ar2 are each independently a substituted or unsubstituted C6-60 aryl or C2-60 heteroaryl containing at least one of N, O and S; R1 is each independently hydrogen or deuterium; R2 to R6 and R9 to R11 are each independently hydrogen or deuterium; one of R7 and R8 is ?and the other is hydrogen or deuterium; Ar3 and Ar4 are each independently a substituted or unsubstituted C6-60 aryl or C2-60 heteroaryl containing at least one of N, O and S; and the other substituents are as defined in the specification.

Abstract: Provided is a novel compound of Chemical Formula 1: wherein: A is a thiazole ring or an oxazole ring fused with an adjacent ring; L1 is a single bond, substituted or unsubstituted C6-60 arylene, or substituted or unsubstituted C2-60 heteroarylene containing at least of N, O and S; R1 is Ar1 to Ar4 are each independently substituted or unsubstituted C6-60 aryl or substituted or unsubstituted C2-60 heteroaryl containing at least one of N, O and S; L2 to L5 are each independently a single bond, substituted or unsubstituted C6-60 arylene, or substituted or unsubstituted C2-60 heteroarylene containing at least one of N, O and S; R2 is a substituted or unsubstituted C6-60 aryl or substituted or unsubstituted C2-60 heteroaryl containing at least of N, O and S; D is deuterium; and n is an integer of 0 to 5, and an organic light emitting device comprising the same.

Abstract: Provided is an organic light emitting device comprising an anode; a cathode; and a light emitting layer between the anode and the cathode, wherein the light emitting layer comprises a compound of the following Chemical Formula 1 and a compound of the following Chemical Formula 2: where A? is a naphthalene ring fused with an adjacent ring and is unsubstituted or substituted with deuterium, and the other substituents are described in the specification. Organic light emitting devices in which a compound of Chemical Formula 1 and a compound of Chemical Formula 2 are co-deposited as a host for a light emitting layer exhibit reduced driving voltage and increased efficiency and lifespan.

Abstract: A compound of Chemical Formula 1: Y1 to Y5 are independently N, C—H, C-D, or C-L?-R; L? is a bond or a substituted or unsubstituted C6-60 arylene; R is a substituted or unsubstituted C6-60 aryl or C2-60 heteroaryl containing one or more of N, O and S, provided that R is not 9-phenylcarbazolyl; Y6 and Y7 are independently N, C—H, or C-D; at least one of Y1 to Y7 is N; L is a bond, or a substituted or unsubstituted C6-60 arylene or C2-60 heteroarylene containing one or more of N, O and S; L1 and L2 are independently a bond or a substituted or unsubstituted C6-60 arylene; Ar1 and Ar2 are independently a substituted or unsubstituted C6-60 aryl or C2-60 heteroaryl containing any one or more of N, O and S, and p and q are independently 0 to 2, and an organic light-emitting device including the same.

Abstract: Provided is a compound of Chemical Formula 1: wherein one of X1 to X8 is N, and one of the rest is C bonded to L1, and the rest are each independently CR; R is hydrogen or deuterium; Y is O or S; L1 is a single bond or L2 and L3 are each independently a single bond, phenylene, or naphthylene; Ar1 and Ar2 are each independently phenyl, biphenyl, terphenyl, quaterphenyl, naphthyl, binaphthyl, (naphthyl)phenyl, (phenyl)naphthyl, phenanthrenyl, triphenylenyl, chrysenyl, tetracenyl, benz[a]anthracenyl, benzo[c]phenanthrenyl, fluorenyl, 9,9-dimethylfluorenyl, 9,9-diphenylfluorenyl, spirobifluorenyl, fluoranthenyl, dibenzothiophenyl, dibenzofuranyl, carbazolyl or 9-phenylcarbazolyl, with the proviso that Ar1 and Ar2 are not phenyl at the same time, and Ar1 and Ar2 are each independently unsubstituted or substituted with at least one of deuterium, a C1-20 alkyl, a C3-20 cycloalkyl, or a C6-20 aryl, and an organic light emitting device including the same.

Abstract: An organic light emitting device comprising a first electrode, a second electrode provided to face the first electrode, and a light emitting layer provided between the first electrode and the second electrode and including a first compound represented by Chemical Formula 1 and a second compound represented by Chemical Formula 2, the organic light emitting device which exhibits low driving voltage, high emission efficiency, and long lifespan characteristics.