Abstract: Provided is a heterocyclic compound of Chemical Formula 1: where X1 is O or S; L1 and L2 are each independently a single bond, a substituted or unsubstituted phenylene, a substituted or unsubstituted naphthylene, or a substituted or unsubstituted biphenylenyl; Y1 to Y3 are each independently N or CR3, provided that at least one of Y1 to Y3 is N; and Ar1a and Ar1b are each independently a substituted or unsubstituted C6-60 aryl or a substituted or unsubstituted C1-60 heteroaryl containing 1 to 3 heteroatoms selected from the group consisting of N, O and S; and an organic light emitting device comprising the same, where the compound of Chemical Formula 1 can be used as a material of an organic material layer of an organic light emitting device and can exhibit improved efficiency, a low driving voltage and/or improved lifetime characteristics of the organic light emitting device.

Abstract: The present invention relates to an electrode shaping apparatus having a sheet transfer unit, a fixing unit, a punch unit including a center punching unit and a side punching unit, wherein the center punching unit includes a hole punching member and a notching pilot pin, the electrode shaping apparatus configured to reduce a step that may occur during notching of an electrode, and an electrode shaping method using the same.

Abstract: A color conversation panel according to an embodiment may include partitioning walls disposed on a substrate, reflective layers disposed on outer surfaces of the partitioning walls, overcoats disposed outside on outer surfaces of the reflective layers and having water repellency, a spacer overlapping a part of the partitioning walls and protruding from a part of the overcoats, the spacer and the overcoats being formed on a same layer, and color conversion layers disposed on the overcoats and disposed in areas defined by the partitioning walls.

Abstract: Provided is an organic light emitting device having improved driving voltage, efficiency and lifetime, the organic light emitting device comprises: a cathode; an anode; and at least one light emitting layer interposed between the cathode and the anode, wherein the light emitting layer includes a first host compound of the following Chemical Formula 1-1 or Chemical Formula 1-2 and a second host compound of the following Chemical Formula 2: where the substituents are as defined in the specification.

Abstract: A bulk acoustic wave resonator includes a substrate, a first electrode, wherein a cavity is formed between the substrate and the first electrode, a piezoelectric layer disposed on the first electrode and overlapping at least a portion of the first electrode, a second electrode disposed on the piezoelectric layer and overlapping at least a portion of the piezoelectric layer, a passivation layer having at least a portion disposed on the second electrode and overlapping at least a portion of the second electrode, and a lower frame spaced apart from the substrate and having a portion of the cavity disposed therebetween. Any one of the second electrode and the passivation layer includes a protruding portion having a first thickness and an extended portion having a second thickness less than the first thickness, and an inner end of the lower frame and an end of the protruding portion are spaced apart horizontally.

Abstract: A display device and method of manufacturing the same, in which the display device includes: a first substrate; a transflective layer disposed on a surface of the first substrate; a wavelength conversion layer disposed on the transflective layer; a capping layer disposed on the wavelength conversion layer; a first polarizing layer disposed on the capping layer; and a second polarizing layer disposed on the other surface of the first substrate. The first polarizing layer and the second polarizing layer have different polarization directions.

Abstract: Provided is a heterocyclic compound Chemical Formula 1 or 2: and an organic light emitting device comprising the same.

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

Abstract: A display device includes a first light emitting element which overlaps a first light emitting region, and emits first color light, a first wavelength conversion pattern which overlaps the first light emitting element, and wavelength-converts the first color light into a second color light, and a first color filter which overlaps the first wavelength conversion pattern, and includes a first light absorbing colorant and a colorant of the second color, where the colorant of the second color blocks transmission of the first color light and transmits the second color light, where the colorant of the second color transmits light in a first overlapping wavelength range in which a first emission spectrum of the first wavelength conversion pattern overlaps a first light absorption spectrum of the first wavelength conversion pattern, and where the first light absorbing colorant absorbs the light in the first overlapping wavelength range.

Abstract: A display device includes a transistor on a base layer, the transistor including an active layer, a gate electrode, a first transistor electrode electrically connected to a first contact region of the active layer, and a second transistor electrode electrically connected to a second contact region of the active layer; an interlayer insulating layer on the gate electrode; a bank on the interlayer insulating layer and protruding in a thickness direction of the base layer; a color conversion layer between banks and including quantum dots that change a color of light; and a light emitting element on the color conversion layer, and a reflective electrode layer is on the bank.

Abstract: A color conversation panel according to an embodiment may include partitioning walls disposed on a substrate, reflective layers disposed on outer surfaces of the partitioning walls, overcoats disposed outside on outer surfaces of the reflective layers and having water repellency, a spacer overlapping a part of the partitioning walls and protruding from a part of the overcoats, the spacer and the overcoats being formed on a same layer, and color conversion layers disposed on the overcoats and disposed in areas defined by the partitioning walls.

Abstract: The present invention relates to a novel heterocyclic compound and an organic light emitting device comprising the same.

Abstract: The present invention provides an organic light emitting device having improved driving voltage, efficiency and lifetime.

Abstract: The present invention relates to an electrode shaping apparatus having a sheet transfer unit, a fixing unit, a punch unit including a center punching unit and a side punching unit, wherein the center punching unit includes a hole punching member and a notching pilot pin, the electrode shaping apparatus configured to reduce a step that may occur during notching of an electrode, and an electrode shaping method using the same.

Abstract: Disclosed is a process for non-stop production of encapsulated probiotics, in which an alginate hydrogel is spontaneously formed through a simple process of culturing probiotics in a medium containing an alginate, a salt that forms a hydrogel by binding to alginic acid, preferably an insoluble carbonate, and optionally an encapsulation enhancer, and probiotics are encapsulated by the alginate hydrogel, thereby not only greatly improving the probiotic encapsulation process but also remarkably improving the freeze-drying viability, heat tolerance, shelf stability, and in-vivo stability (acid resistance and bile resistance) of probiotics.

Abstract: The present specification relates to an organic light emitting element comprising: an anode; a cathode disposed opposite to the anode; and a light emitting layer disposed between the anode and the cathode, wherein the light emitting layer comprises: a host including a P-type host and an N-type host for generating an exciplex; and a phosphorescent dopant, and the host including the P-type host and the N-type host for generating an exciplex emits photoluminescence light having a longer wavelength than that emitted from each of the P-type host and the N-type host.

Abstract: A fuel cap for a vehicle has a locking structure configured to generate a sound interval, including a head portion having a handle formed at a first side and one or more striking portions installed at a second side, and a body portion integrally assembled with the head portion and having a plurality of sound generators installed at the body portion and disposed in a state of being struck by the one or more striking portions installed at the second side of the head portion according to a rotation of the head portion by a locking torque.

Abstract: An apparatus for managing an online conference according to one embodiment includes a group identification information receiver configured to receive group identification information regarding an offline conference room from a user terminal of a user who intends to attend an online conference in the offline conference room, an online conference identifier configured to identify an online conference connected to the offline conference room based on the received group identification information, and an online conference manager configured to transmit online conference entry information for attending the identified online conference to the user terminal.

Abstract: The present invention relates to a novel Bifidobacterium breve IDCC 4401 strain (accession number: KCTC13169BP) and dead cell thereof ID-BBR4401, which are superb in acid tolerance and bile tolerance and have a preventive or therapeutic effect on dyslipidemia. Having not only an excellent effect of reducing a cholesterol level in the body but alto a very high level of acid tolerance and bile tolerance in contrast to previously known B. breve, the novel Bifidobacterium breve MCC 4401 strain (accession number: KCTC13169BP) of the present invention well exhibits the functionality that the strain has in the digestive duct of animals (especially humans), has an excellent growth potential, and provides sustainable and effective functionality of reducing a level of cholesterol in vivo.

Abstract: A portable air purifier may include at least one blower fan which rotates with respect to a rotational shaft extending in a first direction, and includes a hub, and a plurality of fan blades radially connected around the hub; and a fan cover provided with at least one shielding plate that shields the hub, and a plurality of guide vanes that guides a discharge direction of air discharged by the at least one blower fan. A foreground of a rotational area of the plurality of fan blades forms a blowing surface, and the plurality of guide vanes may be arranged in front of the blowing surface and extend radially with respect to the rotational shaft. Each of the plurality of guide vanes may include a first guide surface positioned adjacent to the at least one blower fan and a second guide surface connected to the first guide surface and positioned further from the at least one blower fan than the first guide surface. The second guide surface may extend parallel to the first guide surface.