Abstract: Provided is a display device including a display panel, an optical sensor, a timing controller, a scan driver, a data driver, and an image controller. The timing controller controls an image refresh rate of the display panel based on a refresh rate control signal. Thus, the display device provides improved visibility.

Abstract: Disclosed are a method for changing a game parameter and a client for performing same. The client comprises: a processor for executing a game program; and a transceiver for communicating with a blockchain node of a blockchain network storing a first blockchain, wherein the processor may authenticate a user account and perform a first event of the game program accessed by the user account, the transceiver may transmit, to the blockchain node, a completion signal of the first event including information about the client when the first event is completed and receive, from the blockchain node, a request signal for generating a second event, the processor may generate the second event on the basis of the request signal for generating the second event, and the transceiver may transmit, to the blockchain node, information about the second event.

Abstract: In some implementations, is provided a battery cell, and battery module and battery pack including the same including: an electrode assembly in which a plurality of polar plates are stacked; a case having an internal space in which the electrode assembly is accommodated; a cap assembly coupled to the case and having a terminal disposed therein; and a connection pin configured to electrically connect the electrode assembly and the terminal, wherein the terminal includes: a rivet having an insertion hole into which the connection pin is inserted; and a terminal portion coupled to the rivet.

Abstract: Provided are a high-strength steel sheet having excellent bendability and formability, and a method for manufacturing same. The steel sheet includes: 0.05 to 0.12% of carbon (C), 2.0 to 3.0% of manganese (Mn), 0.5% or less (excluding 0%) of silicon (Si), 1.0% or less (excluding 0%) of chromium (Cr), 0.1% or less (excluding 0%) of niobium (Nb), 0.1% or less (excluding 0%) of titanium (Ti), 0.0025% or less (excluding 0%) of boron (B), 0.02 to 0.05% of aluminum (sol.Al), 0.05% or less (excluding 0%) of phosphorus (P), 0.01% or less (excluding 0%) of sulfur (S), 0.01% or less (excluding 0%) of nitrogen (N), with a balance of Fe and inevitable impurities, and 35 to 50% of ferrite and 35 to 45% of bainite, and a balance of martensite, the ferrite comprising, by area fraction: 8 to 15% of non-recrystallized ferrite and 27 to 35% of recrystallized ferrite, as a microstructure.

Abstract: In a system for automatically manufacturing a pipe spool, when information on a pipe spool is input to a control unit, manufacturing of a spool pipe by cutting an original pipe, processing of a spool pipe, processing of a connection member, manufacturing of a straight pipe spool by welding a spool pipe to a connection member, and manufacturing a three-dimensional spool by welding a straight pipe spool to the other straight pipe spool or a connection member may be automatically performed by a sensor, an automatic device or a robot included in each process and the control unit connected to each of the devices.

Abstract: The present invention relates to a preparation method of a composition for culturing pancreatic organoids, a composition thereby, and an organoid culture method using the same. The present invention is capable of creating an environment that is more similar to an actual tissue than a conventional Matrigel-based culture system, and in particular, exhibits an effect of facilitating tissue differentiation in pancreatic organoid culture and effectively developing into a form that is similar to an actual tissue.

Abstract: The present invention relates to a preparation method of a composition for culturing lung organoids, a composition thereby, and an organoid culture method using the same. The present invention is capable of creating an environment that is more similar to an actual tissue than a conventional Matrigel-based culture system, and in particular, exhibits an effect of facilitating tissue differentiation in lung organoid culture and effectively developing into a form that is similar to an actual tissue.

Abstract: An electronic device is provided. The electronic device includes a housing comprising a first surface opened while facing a first direction, a second surface facing a second direction that is opposite to the first direction, and one or more side parts disposed in different directions between the first surface and the second surface, a nonconductive structure disposed along at least a portion of the at least one side wall within the housing, and one or more stop recesses including at least one recess formed on one surface of the one or more side parts and a portion of the nonconductive structure surrounding a peripheral portion of the at least one recess.

Abstract: The present invention relates to a weld bead inspection device that inspects welding quality by measuring the state of beads formed at a welding part of a metallic or non-metallic pipe, or the like, and more specifically, to a weld bead inspection device that more efficiently inspects a welding part joined by a method such as thermal fusion for connection between pipes or connection between a pipe and a fitting. The weld bead inspection device includes a housing unit that forms an appearance; an imaging unit that images shapes of the weld beads in an inner space that is open downward from a middle inner side of the housing unit; a control unit that is provided in the housing unit to store image data captured by the imaging unit or to calculate external shapes of the weld beads for determining welding quality on the basis of the image data.

Abstract: A battery module according to one embodiment of the present disclosure includes: a battery cell stack in which a plurality of battery cells are stacked, a bus bar frame connected to the battery cell stack, an electrode lead protruding from the battery cell stack and passing through a lead slot of the bus bar frame, and a bus bar electrically connected to the electrode lead, wherein the bus bar frame includes a base bottom portion and a first rib portion protruding from the base bottom portion, and wherein the first rib portion supports the bus bar.

Abstract: Provided is a composition for forming a silica layer, the composition containing a silicon-containing polymer and a solvent, wherein a silica layer formed of the composition for forming the silica layer satisfies Relation 1. The definition of Relation 1 is as described in the specification. The definition of Relation 1 is the same as described in the specification.

Abstract: A resin composition includes a polyimide, an ultraviolet (UV) absorber represented by the following Chemical Formula 1 and a remaining N-methyl-2-pyrrolidone, and wherein, in Chemical Formula 1, R1 and R2 are each selected from a hydrogen group, a halogen group, an aliphatic substituent, and an aromatic group.

Abstract: A display device includes a substrate, a display element layer disposed on the substrate, and a protective layer disposed on the display element layer.

Abstract: An electronic device is provided. The electronic device includes a housing comprising a first surface opened while facing a first direction, a second surface facing a second direction that is opposite to the first direction, and one or more side parts disposed in different directions between the first surface and the second surface, a nonconductive structure disposed along at least a portion of the at least one side wall within the housing, and one or more stop recesses including at least one recess formed on one surface of the one or more side parts and a portion of the nonconductive structure surrounding a peripheral portion of the at least one recess.

Abstract: An electronic device is provided. The electronic device includes a housing comprising a first surface opened while facing a first direction, a second surface facing a second direction that is opposite to the first direction, and one or more side parts disposed in different directions between the first surface and the second surface, a nonconductive structure disposed along at least a portion of the at least one side wall within the housing, and one or more stop recesses including at least one recess formed on one surface of the one or more side parts and a portion of the nonconductive structure surrounding a peripheral portion of the at least one recess.

Abstract: A semiconductor device includes a substrate, a first lower wiring line on the substrate, a first insulation layer on the first lower wiring line, a first dielectric barrier layer and a first etch stop layer sequentially stacked on the first insulation layer, a second insulation layer on the first etch stop layer, a first upper wiring line extending through the second insulation layer, the first etch stop layer, and the first dielectric barrier layer, and a first conductive via in the first insulation layer and electrically connecting the first lower wiring line and the first upper wiring line. An upper surface of the first conductive via protrudes above a lower surface of the first upper wiring line.

Abstract: Provided is a composition for forming a silica layer, the composition containing a silicon-containing polymer and a solvent, wherein a silica layer formed of the composition for forming the silica layer satisfies Relation 1. The definition of Relation 1 is as described in the specification. The definition of Relation 1 is the same as described in the specification.

Abstract: A semiconductor device includes a substrate, a first lower wiring line on the substrate, a first insulation layer on the first lower wiring line, a first dielectric barrier layer and a first etch stop layer sequentially stacked on the first insulation layer, a second insulation layer on the first etch stop layer, a first upper wiring line extending through the second insulation layer, the first etch stop layer, and the first dielectric barrier layer, and a first conductive via in the first insulation layer and electrically connecting the first lower wiring line and the first upper wiring line. An upper surface of the first conductive via protrudes above a lower surface of the first upper wiring line.

Abstract: An electronic device is provided. The electronic device includes a housing comprising a first surface opened while facing a first direction, a second surface facing a second direction that is opposite to the first direction, and one or more side parts disposed in different directions between the first surface and the second surface, a nonconductive structure disposed along at least a portion of the at least one side wall within the housing, and one or more stop recesses including at least one recess formed on one surface of the one or more side parts and a portion of the nonconductive structure surrounding a peripheral portion of the at least one recess.

Abstract: The present invention relates to a method of manufacturing a cell spheroid using three-dimensional bio-printing technology, and the cell spheroid may be used for preventing or treating vascular and endocrine diseases by including mesenchymal stem cells, induced pluripotent stem cells-derived cells, or the like as an active ingredient, or may be used as an in vitro drug testing model.