Abstract: A display device including a housing; a rollable display included in the housing; a wireless communication unit connected to an access point (AP); a motion recognition sensor configured to detect a user's motion; and a controller configured to determine if an external device is connected to the AP to which the wireless communication unit is connected, and output an alarm in response to the detection of the user's motion and the determination the external device is connected to the AP.

Abstract: A display device includes a first substrate, first signal lines, and a first signal pad array. The first signal pads each includes a first pad portion connected to a corresponding first signal line, a second pad portion having a width larger than that of the first pad portion, and a third pad portion connecting the first pad portion with the second pad portion and having a width smaller than the width of the second pad portion. The first signal pads are disposed in a shape symmetrical with respect to an imaginary line. Each first signal pad has an angle between a direction in which the third pad portion is extended and a direction in which the second pad portion is extended. The angle of a first signal pad closer to the imaginary line is smaller than the angle of another first signal pad further away from the imaginary line.

Abstract: A data storage device includes a storage medium, a first buffer memory, a second buffer memory, and a controller. The controller is configured to control data input/output for the storage medium according to requests received from a host device and to store write data in the first and second buffer memories in response to a write request received from the host device.

Abstract: Disclosed herein is a negative electrode for a rechargeable lithium battery including a negative active material and a binder, wherein the binder includes carboxylmethyl cellulose and a styrene-butadiene rubber, and the carboxylmethyl cellulose has a weight average molecular weight of about 300,000 g/mol to about 500,000 g/mol, and a rechargeable lithium battery including the same.

Abstract: An image sensor, imaging device, and method are provided. The image sensor includes a pixel array including an active area in which plural active pixels are located, and a dummy area in which plural dummy pixels are located, and a test element group (TEG) which is located in the dummy area and on which a test light-shielding pattern, different from a light-shielding pattern formed on the active area, is formed to detect a degree of misalignment between the light-shielding pattern and the active area.

Abstract: Embodiments disclosed are directed to a method of reducing warpage of a semiconductor package substrate, and a warpage reducing device. The method includes preparing the semiconductor package substrate, heating the prepared semiconductor package substrate, forming at least one bend in the heated semiconductor package substrate, and cooling the semiconductor package substrate having the at least one bend is formed.

Abstract: The present invention relates to a composition for preventing, treating, or alleviating ischemia-reperfusion injury, containing bile acid. According to the present invention, bile acid increases intranuclear beta-catenin levels, interferes with the opening of a mitochondria permeable transition pore (mPTP), and has excellent effects, in ischemia-reperfusion injury animal models, of alleviating tissue injury and reducing the size of infarcts, thereby being usable in the prevention, treatment, or alleviation of ischemia-reperfusion injury.

Abstract: An image sensor, imaging device, and method are provided. The image sensor includes a pixel array including an active area in which plural active pixels are located, and a dummy area in which plural dummy pixels are located, and a test element group (TEG) which is located in the dummy area and on which a test light-shielding pattern, different from a light-shielding pattern formed on the active area, is formed to detect a degree of misalignment between the light-shielding pattern and the active area.

Abstract: Disclosed are a negative active material for a rechargeable lithium battery including a silicon-based material and graphite, wherein an average particle diameter (D50) of the graphite may range from about 5 ?m to about 15 ?m, and a Raman peak intensity ratio (Id/Ig) of the graphite may range from about 0.1 to about 0.9, and a negative electrode and a rechargeable lithium battery including the same.

Abstract: A method and apparatus and computer readable record media for communication on a Wi-Fi direct multi-group network. A method for communication in the Wi-Fi direct multi-group network comprising receiving, by a Wi-Fi direct multi-group network server, a request for transmission of a Wi-Fi direct communication application for a Wi-Fi direct multi-group communication service from an user equipment (UE) directly or indirectly through a relay server; and transmitting, by the Wi-Fi direct multi-group network server, the Wi-Fi direct communication application to the UE directly or indirectly through the relay server, wherein the Wi-Fi direct communication application determines destination address information for communication of the UE in the Wi-Fi direct multi-group network.

Abstract: The present invention provides a composition comprising deoxycholic acid as an effective ingredient for preventing, alleviating, or treating hair loss. Based on deoxycholic acid that promotes proliferation and growth of follicular cells to ultimately exert a hair regrowth effect, the composition of the present invention can be applied as a hair loss preventing agent, a hair growth agent or a hair restorer.

Abstract: The present invention relates to a composition for an insulator of a thin film transistor, an insulator and an organic thin film transistor comprising the same. The insulator of a thin film transistor prepared with the composition of the present invention displays an excellent permittivity along with a low surface energy, and the organic thin film transistor comprising the same displays an improved organic semiconductor morphology formed on the top surface of the insulator, so that it can bring the effect of reducing leakage current density, improving charge carrier mobility, and improving current on/off ratio.

Abstract: Embodiments disclosed are directed to a method of reducing warpage of a semiconductor package substrate, and a warpage reducing device. The method includes preparing the semiconductor package substrate, heating the prepared semiconductor package substrate, forming at least one bend in the heated semiconductor package substrate, and cooling the semiconductor package substrate having the at least one bend is formed.

Abstract: A frame integrated vacuum hot press comprises a frame chamber including a vacuum space having an opened side; a door installed to the frame chamber to open or close the opened side of the vacuum space; a heating chamber including a heating space and a heater heating an object to be formed which is loaded in the heating space; and a cylinder which is connected to the frame chamber to apply pressure to the object to be formed which is loaded in the heating space of the heating chamber.

Abstract: The invention relates to a two steps image capture panel for recording x-ray image information. More particularly, the invention relates to a method and an apparatus for directing the internal electric field to capture the x-ray image first on an insulating surface, avoiding charge injection noise from the insulating surface, and then re-directing the internal electrical field to transfer the image charge from the insulating surface to a conductive readout electrode with electric field sufficient for charge gain during image readout.

Abstract: Disclosed is a negative electrode for a rechargeable lithium battery that includes a negative active material and a binder, wherein the binder includes carboxymethyl cellulose, polyvinyl alcohol, and a styrene-butadiene rubber, and a rechargeable lithium battery including the same.

Abstract: A method for preparing a sintered rare earth-based magnet using a melting point depression element and a sintered rare earth-based magnet prepared by the same are disclosed. The method for preparing a sintered rare earth-based magnet according to the present invention includes the steps of: heating an R—Fe—B based magnet powder to a predetermined temperature to produce a sintered magnet, in which R is a rare earth element or a combination of rare earth elements; coating the surface of the produced sintered magnet with a coating solution prepared by mixing a heavy rare earth powder and a melting point depression element powder in a solvent; and heat-treating the coated sintered magnet.

Abstract: A method and apparatus and computer readable record media for communication on a Wi-Fi direct multi-group network. A method for communication in the Wi-Fi direct multi-group network comprising receiving, by a Wi-Fi direct multi-group network server, a request for transmission of a Wi-Fi direct communication application for a Wi-Fi direct multi-group communication service from an user equipment (UE) directly or indirectly through a relay server; and transmitting, by the Wi-Fi direct multi-group network server, the Wi-Fi direct communication application to the UE directly or indirectly through the relay server, wherein the Wi-Fi direct communication application determines destination address information for communication of the UE in the Wi-Fi direct multi-group network.

Abstract: A switching power supply may include: an inductor connected to an input voltage terminal; a first switch configured to form a first electrical path between the inductor and an output voltage terminal; a second switch configured to form a second electrical path between the inductor and a ground voltage terminal; a negative current sensor configured to sense an inductor current flowing through the first electrical path, and generate an over-current protection signal when the inductor current is sensed as a negative current equal to or more than a preset value; and a controller configured to enable a discontinuous conduction mode (DCM) when the over-current protection signal is generated, and turn off the first switch and turn on the second switch, in response to the enabled DCM.

Abstract: Disclosed is a heat sink for a lighting device, which radiates the heat generated from the lighting device, comprising: an outer case coupled to the lighting device; an inner case accommodated into the outer case in such a manner as to be spaced apart therefrom to form a filling space between the inner case and the outer case; and a cooling medium vaporized on a portion of the outer case coupled to the lighting device by means of the heat generated from the lighting device to cool the lighting device.