Abstract: A composite transparent board and method for producing the same are provided. The method includes a feeding step and a forming step. In the feeding step, a first resin, a second resin, and a third resin are respectively fed into a first extruder, a second extruder, and a third extruder to correspondingly form a composite transparent film having a first layer, a second layer, and a third layer. The first resin is selected from the group consisting of Tairilin 3824, Tairilin 3842, Tairilin 390A, Tairilin P115, Tairilin 663G, and SKYGREEN® S2008. In the forming step, the composite transparent film sequentially passes through a first forming wheel, a second forming wheel, and a third forming wheel to form a composite transparent board. The composite transparent board has a haze within a range from 0.75% to 4% and a total light transmittance within a range from 86% to 91.5%.

Abstract: A conductive material dispersion, an electrode slurry and a lithium secondary battery, where the conductive material dispersion includes a conductive material including carbon nanotubes, a hydrogenated nitrile-based copolymer, a multivalent amine-based compound, and a solvent, the electrode slurry includes the conductive material dispersion, and the lithium secondary battery includes an electrode active material layer formed from the electrode slurry. An amine value of the conductive material dispersion is 5 mgKOH/g to 30 mgKOH/g.

Abstract: Provided is a semiconductor package including a first redistribution substrate including a first redistribution insulating layer and a first redistribution via, a first insulating layer on the first redistribution substrate, a solder pad on the first insulating layer, a first alignment key penetrating the first insulating layer and extending to an inside of the first redistribution insulating layer, and a solder via spaced apart from the first alignment key and electrically connected to the solder pad, wherein the first alignment key includes a first key body extending from a first surface of the first insulating layer to the inside of the first redistribution substrate, and a first key protrusion protruding from a side surface of the first key body toward the first insulating layer, and wherein the first insulating layer includes a non-photosensitive material.

Abstract: A hydrogen activation/ionization accelerating apparatus having an ionization unit repeating arrangement structure is installed between a hydrogen fuel cell and a hydrogen supply device, wherein hydrogen supplied to the hydrogen fuel cell is activated by the strength of an ultra-high density line electric field and supplied in a high energy state to a hydrogen fuel cell stack, so as to serve as a turbo/accelerator that can generate large amounts of electricity by increasing bonding rates between hydrogen and oxygen through improvement of tivation/ionization rates with low energy in an ionization layer catalyst of the hydrogen fuel cell.

Abstract: A method of providing an exposure temperature includes generating reference information indicating relationships between an exposure condition and a retention value, where the exposure condition include an exposure temperature and an exposure time of a nonvolatile memory device and the retention value indicates retention characteristic of the nonvolatile memory device, before a power-off time point when the nonvolatile memory device is powered-off, performing a monitoring program operation to write monitoring data in target memory cells included in the nonvolatile memory device, after a power-on time point when the nonvolatile memory device is powered on, generating a measured retention value by performing a monitoring read operation to read data from the target memory cells, and estimating, based on the reference information, a measured exposure temperature corresponding to the measured retention value and a measured exposure time between the power-off time point and the power-on time point.

Abstract: Techniques and systems are disclosed that reduce latency in streaming media items. The techniques include communicating, to a media streaming service, a selection of a media item from a client device, receiving, from the media streaming service, a first portion of the media item having a first resolution and presenting, using the first portion, the media item on a presentation interface of the client device. The techniques further include receiving, from the media streaming service, a second portion of the media item having a second resolution, and presenting, responsive to an occurrence of a first threshold condition, the second portion of the media item on the presentation interface of the client device.

Abstract: The present technology relates to a battery pack. More specifically, the battery pack of the present technology includes a pack case that includes a module area in which the battery modules are mounted, and a base plate defining a hollow shape and having a plurality of space parts formed therein to support a lower part of a battery module and in which coolant is stored; sidewalls coupled to a rim of the base plate; and a separation wall coupled to the base plate to separate the battery modules from each other. The separation wall includes a main separation wall extended and formed across a central part of the pack case. The base plate thus enables coolant to flow in out to the space part and an inlet and an outlet at each end connecting the space parts with each other located between a pair of adjacent space parts, and further includes a flow path part including a plurality of cooling flow paths to connect the space parts each other.

Abstract: An electrolyte for a rechargeable lithium battery may include a lithium salt; a non-aqueous organic solvent; a first additive represented by Chemical Formula 1; and a second additive represented by Chemical Formula 2: R1—O—R2??Chemical Formula 1 R3—O—R4.??Chemical Formula 2 The description of each chemical formulas follows the specification.

Abstract: Provided are a metal-aqueous battery and a hydrogen generation and carbon dioxide storage system including the same. The metal-aqueous battery may include a double cell. The double cell may include a pair of single cells. Each of the single cells include an anode, a cathode, a separator interposed between the anode and the cathode, and a cathode spacer interposed between the separator and the cathode and configured to form a gap between the separator and the cathode. The double cell may also include a current collector interposed between the pair of single cells such that cathodes of the single cells face each other across the current collector.

Abstract: The present invention relates to a battery cell of a secondary battery, and more particularly, to a battery cell inspection device and system for deciding whether a battery cell is good or bad based on a bent degree of a bend formed on one side surface of the battery cell.

Abstract: A battery container includes a container housing having a plurality of unit housings to form an empty space therein; a plurality of battery modules accommodated in the inner space of the container housing and stacked in an upper and lower direction to form a module stack, so that a plurality of module stacks are arranged in a horizontal direction; and a support member configured to accommodate the plurality of battery modules while supporting at least two unit housings therebetween.

Abstract: A secondary battery includes: an electrode assembly including: a first electrode plate; a second electrode plate; and a separator between the first electrode plate and the second electrode plate; a case configured to accommodate the electrode assembly; a cap assembly electrically connected to the second electrode plate of the electrode assembly; and an insulator coupled to an upper side of the electrode assembly, wherein the insulator includes: an insulating upper portion configured to cover the upper side of the electrode assembly; an insulating side portion between the case and a side portion of the electrode assembly; and an insulating core portion inserted into a hollow portion of the electrode assembly to support the electrode assembly.

Abstract: An oscillating mirror for lidar has a mirror coupled with a rotor. The rotor is arranged to rotate about a pivot using one or more bearings. A mirror is coupled with the rotor and arranged to reflect light emitted from a laser. A first magnet is coupled with the rotor. A second magnet is coupled with a base. The second magnet is arranged to limit an angular rotation of the rotor by a pole of the second magnet facing a similar pole of the first magnet.

Abstract: An embodiment interposer includes a first electrically conducting line structure, an electrically conducting via structure that is electrically connected to the first electrically conducting line structure, and a second electrically conducting line structure formed along with the electrically conducting via structure as a monolithic structure. In some embodiments, a portion of the first electrically conducting line structure may be provided within the electrically conducting via structure such that the first electrically conducting line structure is at least partially overlapping with the electrically conducting via structure such that the first electrically conducting line structure and the electrically conducting via structure share a common surface. In other embodiments, the interposer may further include a via land structure electrically connected to the first electrically conducting line structure.

Abstract: One or more non-transitory computer-readable storage media storing one or more computer programs including computer-executable instructions that, when executed one or more processors of an electronic device individually or collectively, cause the electronic device to perform at least one operation are provided.

Abstract: According to some implementations, provided is a semiconductor device including: a first semiconductor chip including first through-vias, and first front pads electrically connected to the first through-vias; and a second semiconductor chip disposed below the first semiconductor chip, and including a substrate, a circuit layer disposed below the substrate, second front pads below the circuit layer, rear pads disposed on the substrate and electrically connected to the corresponding first front pads, second through-vias penetrating through the substrate and electrically connected to the second front pads, and a rear redistribution layer electrically connecting the second through-vias and the rear pads, wherein at least one of the rear pads is spaced apart from a corresponding one of the second through-vias in a horizontal direction, and overlaps a corresponding one of the first through-vias in a vertical direction.

Abstract: A method and a device for transmitting/receiving a signal in a wireless communication system, according to one embodiment of the present disclosure, comprise transmitting a PRACH, and receiving an RAR on the basis of the PRACH. The PRACH is transmitted within one or two PRACH slots. The one or two PRACH slots are determined from among N number of slots corresponding to reference slots. 60 kHz SCS can be applied to the reference slots on the basis of the application of one from among 480 kHz SCS and 960 kHz SCS to the N number of slots.

Abstract: A semiconductor device and method of manufacture are provided whereby an interposer and a first semiconductor device are placed onto a carrier substrate and encapsulated. The interposer comprises a first portion and conductive pillars extending away from the first portion. A redistribution layer located on a first side of the encapsulant electrically connects the conductive pillars to the first semiconductor device.

Abstract: A display device includes a substrate having a pixel electrode, a light emitting element disposed on the pixel electrode and including a first semiconductor layer, an active layer, and a second semiconductor layer, a step coverage prevention layer surrounding the light emitting element in a plan view, a common electrode disposed on the light emitting element and the step coverage prevention layer, and an oxidation prevention layer disposed on a portion of the common electrode that does not overlap the light emitting element in a thickness direction. The common electrode includes a first portion disposed on the light emitting element and a second portion disposed between the oxidation prevention layer and the step coverage prevention layer, and a material forming the first portion is an oxide of a material forming the second portion.

Abstract: An in-vehicle charging device that includes an AC-DC converter that converts power between AC power on the external AC power supply side and first DC power on the first DC power supply side, and converts power between AC power on the external AC power supply side and second DC power on the second DC power supply side, wherein the AC-DC converter is a triple active bridge circuit including: a transformer including a primary-side coil, a secondary-side first coil, and a secondary-side second coil; a primary-side bridge circuit connected to the primary-side coil; a secondary-side first bridge circuit connected to the secondary-side first coil; and a secondary-side second bridge circuit connected to the secondary-side second coil, and the primary-side bridge circuit includes a bidirectional switching device.