Abstract: Disclosed herein are a polyamide-imide film which is transparent and exhibits superior mechanical properties such as surface hardness, etc. and a method of preparing the same. The polyamide-imide film a copolymer of an aromatic diamine, an aromatic dianhydride, and an aromatic dicarbonyl compound, wherein the aromatic diamine and the aromatic dianhydride forms an imide unit; the aromatic diamine and the aromatic dicarbonyl compound forms an amide unit; and the amide unit accounts for 50-70 mol % of 100 mol % of the units of the copolymer, thereby exhibiting transparency and superior mechanical properties including surface hardness.

Abstract: The present invention relates to a method for providing a mixed reality service by a server and a system for performing the same, the method comprising the steps of: generating a mixed reality conference room for arbitrary three-dimensional modeling data; receiving tracking information collected by at least one terminal participating in the mixed reality conference room; generating a virtual image for the three-dimensional modeling data and at least one object, on the basis of the tracking information; and transmitting the virtual image to the at least one terminal, wherein the tracking information includes space identification information of a reality space of each terminal and motion information of each terminal, and the virtual image is synthesized with a reality image in the at least one terminal so as to be displayed as a mixed reality image.

Abstract: Provided is a sign language recognition system, and the sign language recognition system includes an acquisition unit configured to acquire an electromyogram signal of a user from a sensor measurement device worn around an arm of the user, an extraction unit configured to extract a muscle active section from the electromyogram signal to detect a sign language gesture of the user, a producing unit configured to produce a first feature vector by performing signal processing to the muscle active section, a search unit configured to search a signal corresponding to the first feature vector in a database, and an output unit configured to output a text corresponding to the searched signal.

Abstract: An acoustic resonator comprises a substrate, a resonant portion disposed on the substrate and in which a first electrode, a piezoelectric layer, and a second electrode are stacked, a protective layer disposed on an upper portion of the resonant portion, and a hydrophobic layer formed on the protective layer, and the protective layer comprises a first protective layer stacked on the second electrode and a second protective layer stacked on the first protective layer, wherein a density of the second protective layer is higher than a density of the first protective layer.

Abstract: Disclosed is a system for integrally treating a composite waste gas including nitrogen oxides (NOx and N2O), chlorofluorocarbons (CFCs), hydrochlorofluorocarbons (HCFCs), hydrofluorocarbons (HFCs), and perfluorinated compounds (PFCs). The system includes a first wet processor configured to wash and adsorb dust including gases, SOx, and ash dissolved in water, a decomposing reactor configured to receive waste gas processed in the first wet processor and process nitrogen oxides (NOx and N2O), fluorocarbons (CFCs), hydrochlorofluorocarbons (HCFCs), hydrofluorocarbons (HFCs), and perfluorinated compounds (PFCs) in the waste gas, and a second wet processor configured to receive the waste gas processed in the decomposing reactor and wash and adsorb the received waste gas. The system can efficiently treat a large amount of composite waste gas.

Abstract: A liquid crystal display includes: a gate line connected to a gate electrode; a semiconductor layer disposed on the gate line and including silicon; an ohmic contact layer disposed on the semiconductor layer; and a data conductor disposed on the ohmic contact layer. The semiconductor layer includes a source region, a drain region, and a channel region disposed between the source region and the drain region. The data conductor includes a data line transmitting a data signal, a source electrode corresponding to the source region, and a drain electrode corresponding to the drain region. A channel step of the semiconductor layer is a height difference between an upper surface in the source region or the drain region and an upper surface in the channel region. The upper surface in the source region or the drain region has a maximum height of the semiconductor layer.

Abstract: A method for preparing an oblate polymer particle from a spherical polymer particle includes squeezing a polymer film including spherical polymer particles. A pair of polymer sheets are used to uniformly deform the film. With this method, more uniform oblate particles may be prepared, and a yield rate thereof may be improved.

Abstract: A method of performing time-shift function and television receiver having a tuner and a personal video recorder for storing broadcast programs of at least one channel enables a broadcast program of a currently tuned channel to be continuously and efficiently stored to enable time-shifting, regardless of an interruption by switching channels or changing input sources or even in the case of an inadvertent power-off condition.

Abstract: An electronic device is provided. The electronic device includes an outer housing including a first plate, a second plate oriented in an opposite direction of the first plate, and a side member at least partially surrounding a space between the first plate and the second plate and a mid-structure disposed in the outer housing, including a first surface facing the first plate, a second plate facing the second plate, and a third plate facing at least a portion of the side member, and at least partially surrounded by the side member, wherein at least a portion of a side surface of the first plate may be surrounded by the at least a portion of the side member while spaced apart at a first interval, wherein at least a portion of the third surface of the mid-structure may be positioned adjacent to at least another portion of the side member while spaced apart from a second interval, and wherein the second interval may be smaller than the first interval.

Abstract: Disclosed is a method and apparatus that may provide predetermined partial content of content provided from a content providing server to a user terminal by controlling the partial content based on an interaction of a user or synthesizing new content with the partial content, and by displaying the controlled content or the synthesized content.

Abstract: A display device includes a first substrate and a pixel electrode on the first substrate. A thickness of the pixel electrode is about 40 nanometers (nm) or less.

Abstract: Provided is a sign language recognition system, and the sign language recognition system includes an acquisition unit configured to acquire an electromyogram signal of a user from a sensor measurement device worn around an arm of the user, an extraction unit configured to extract a muscle active section from the electromyogram signal to detect a sign language gesture of the user, a producing unit configured to produce a first feature vector by performing signal processing to the muscle active section, a search unit configured to search a signal corresponding to the first feature vector in a database, and an output unit configured to output a text corresponding to the searched signal.

Abstract: A method for preparing an oblate polymer particle from a spherical polymer particle includes squeezing a polymer film including spherical polymer particles. A pair of polymer sheets are used to uniformly deform the film. With this method, more uniform oblate particles may be prepared, and a yield rate thereof may be improved.

Abstract: A method for providing information on modeling of a structure is provided. The method includes the steps of: acquiring three-dimensional exterior scan data for an exterior of a structure and three-dimensional interior scan data for an interior of the structure; matching the three-dimensional exterior scan data and the three-dimensional interior scan data, with respect to at least one feature point common to the three-dimensional exterior scan data and the three-dimensional interior scan data; and generating information on modeling of the structure with reference to a state of the matching between the three-dimensional exterior scan data and the three-dimensional interior scan data.

Abstract: A method of performing time-shift function and television receiver having a tuner and a personal video recorder for storing broadcast programs of at least one channel enables a broadcast program of a currently tuned channel to be continuously and efficiently stored to enable time-shifting, regardless of an interruption by switching channels or changing input sources or even in the case of an inadvertent power-off condition.

Abstract: A method of performing time-shift function and television receiver having a tuner and a personal video recorder for storing broadcast programs of at least one channel enables a broadcast program of a currently tuned channel to be continuously and efficiently stored to enable time-shifting, regardless of an interruption by switching channels or changing input sources or even in the case of an inadvertent power-off condition.

Abstract: Disclosed are an electronic device and a method for managing a specific absorption rate (SAR). In the present disclosure, even if an antenna for second communication is activated while the electronic device transmits/receives wireless signals of a plurality of frequency bands for first communication, an increase in an SAR value by frequency overlapping can be reduced or suppressed.

Abstract: A display panel includes a first substrate, a second substrate which faces the first substrate, is smaller than the first substrate so that an edge of the first substrate is exposed in a plan view, a fixing member disposed on the exposed edge of the first substrate, and a bonding member disposed between the first substrate and the fixing member.

Abstract: A method of performing time-shift function and television receiver having a tuner and a personal video recorder for storing broadcast programs of at least one channel enables a broadcast program of a currently tuned channel to be continuously and efficiently stored to enable time-shifting, regardless of an interruption by switching channels or changing input sources or even in the case of an inadvertent power-off condition.

Abstract: A method of producing a polyimide film, including obtaining a polyamic acid including a repeating unit of Chemical Formula 1: wherein Ar1 and Ar2 are described in the specification; imidizing the polyamic acid to obtain a partially imidized polyimide; determining a sub-Tg temperature of the partially imidized polyimide; and heating the partially imidized polyimide in at least two steps to obtain a polyimide film, wherein a step transition temperature range is within the sub-Tg temperature ±30° C.