Abstract: Provided is a method for fabricating an electronic device, the method including: preparing a carrier substrate including an element region and a wiring region; forming a sacrificial layer on the carrier substrate; forming an electronic element on the sacrificial layer of the element region; forming a first elastic layer having a corrugated surface on the first elastic layer of the wiring region; forming a metal wirings electrically connecting the electronic element thereto, on the first elastic layer of the wiring region; forming a second elastic layer covering the metal wirings, on the first elastic layer; forming a high rigidity pattern filling in a recess of the second elastic layer above the electronic element so as to overlap the electronic element, and having a corrugated surface; forming a third elastic layer on the second elastic layer and the high rigidity pattern; and separating the carrier substrate.

Abstract: Disclosed are an electrolyte for an electrochemical device and preparation method thereof. The electrolyte can include a first electrode, a second electrode spaced apart from the first electrode and is filled between the first electrode and the second electrode, wherein the electrolyte further includes a salt form of a carbon quantum dot anion and a metal cation having an average diameter in the range of 2 to 12 nanometers (nm) and a surface potential of ?20 mV or less, and the electrolyte has a very small dissociation energy of anion and cation, and thus improves ionic conductivity. And due to large ion polarization, and high anionic thermochemical/electrochemical stability of the electrolyte, no side reactions occur during device driving and it is possible to build an electrochemical device with greatly improved stability and reliability.

Abstract: The present disclosure relates to an optical repeater system for 5th generation (5G) mobile communication. The optical repeater system does not require an additional optical wavelength for a plurality of remote units and can increase the transmission capacity by adding a remote unit without incurring an unnecessary cost, thereby facilitating high-speed and large-capacity data transmission. In addition, the optical repeater system can transmit/receive both a high-speed and large-capacity service signal, as an analog optical signal, and a management control signal, as a digital optical signal, between a master unit and a plurality of remote units. Also, the optical repeater system can selectively and differently compensate for propagation delay times of multiple paths between a terminal and a base station in a mobile communication system, especially, in the 5G mobile communication system.

Abstract: The present disclosure relates to an optical repeater system for 5th generation (5G) mobile communication. The optical repeater system does not require an additional optical wavelength for a plurality of remote units and can increase the transmission capacity by adding a remote unit without incurring an unnecessary cost, thereby facilitating high-speed and large-capacity data transmission. In addition, the optical repeater system can transmit/receive both a high-speed and large-capacity service signal, as an analog optical signal, and a management control signal, as a digital optical signal, between a master unit and a plurality of remote units. Also, the optical repeater system can selectively and differently compensate for propagation delay times of multiple paths between a terminal and a base station in a mobile communication system, especially, in the 5G mobile communication system.

Abstract: Disclosed is a method of blocking transmission of a message. A method of blocking transmission of a message according to an embodiment of the present invention includes: receiving set information that blocks a message input of a user for each arbitrary chat room; and blocking a message input of the user in the arbitrary chat room for which the set information that blocks a message input is received.

Abstract: A display device includes a substrate including a display area and a non-display area outside the display area, a plurality of pixels located in the display area, a driving circuit driving the pixels, and a pad portion located in the non-display area and electrically connected to the driving circuit through a plurality of outer wirings. The pad portion includes a plurality of pad wirings each electrically connected to corresponding ones of the outer wirings. The pad wirings includes a first pad wiring and a second pad wiring separated from each other. The first pad wiring includes a first electrode layer, an insulating layer on the first electrode, and a second electrode layer on the insulating layer in a stacking direction, the second electrode layer being connected to the first electrode layer. The second pad wiring includes the first electrode layer but not the second electrode layer.

Abstract: Provided are a hybrid metal sheet for magnetic shielding and a wireless power transmission module including the same. The hybrid metal sheet for magnetic shielding according to an embodiment of the present invention comprises: a first sheet layer made of a ribbon sheet of an amorphous alloy having a first width; and a plurality of second sheet layers stacked in multiple layers on one side of the first sheet layer, wherein the second sheet layer may be a sheet layer formed by arranging a plurality of divided sheets having a second width narrower than the first width and made of a ribbon sheet of a nano-crystal alloy on the same plane.

Abstract: The present invention provides a method for preparing a vinyl chloride-based polymer comprising performing suspension polymerization of vinyl chloride-based monomer, wherein an aromatic hydrocarbon-based compound is added when a pressure change is 0.5 to 1.5 kg/cm2 with respect to an equilibrium pressure at a polymerization temperature in a polymerization reactor after the vinyl chloride-based monomer is added to the polymerization reactor, wherein the aromatic hydrocarbon-based compound comprises a reactive functional group having an intracarbon double bond and a hydroxyl group; and a vinyl chloride-based polymer prepared by the method and having a high polymerization degree and excellent fusion processability.

Abstract: A device and a method for providing tactile sensation by using electrostatic force between an electrode and a user. The device for providing tactile sensation includes a plurality of electrodes arranged on a substrate, and a dielectric substance layer formed on the substrate and the electrodes, wherein the electrodes electrify the dielectric substance layer with an electric charge according to a driving voltage, so as to generate electrostatic force that provides tactile stimuli to a user who comes into contact with the dielectric substance layer.

Abstract: Provided is a positive temperature coefficient (PTC) unit for a vehicle heater. The PTC unit according to an exemplary embodiment of the present invention includes: a heat generation part which includes PTC elements; and a heat radiation part which is provided on at least one surface of the heat generation part and includes a heat radiation base material and a heat radiation film provided on at least a portion of an outer surface of the heat radiation base material to improve heat radiation performance. According to the present invention, improved heat radiation performance may be exhibited, and concurrently, heat radiation performance due to excellent durability may be exhibited for a long period of time without a structural change for increasing a specific surface area of a heat radiation part while reducing an air ventilation property, so as to improve heat radiation performance.

Abstract: A variable stiffness film, a variable stiffness flexible display, and a manufacturing method thereof may include a lower electrode, a variable fluid, and an upper electrode. A polymer layer may be formed on the lower electrode, and a variable fluid receiving portion is patterned on the polymer layer. A variable stiffness layer is formed by putting a variable fluid in the variable fluid receiving portion. The upper electrode is formed on the variable fluid layer.

Abstract: Exemplary embodiments of the present invention relate to a high-efficiency light emitting diode (LED).

Abstract: An embodiment relates to an ultraviolet light-emitting diode, a method for manufacturing a light-emitting diode, a light-emitting diode package, and a lighting system. The light-emitting diode according to an embodiment includes: a second electrode layer (120); a second conductive type AlGaN-based semiconductor layer (119) on the second electrode layer (120); an active layer (117) on the second conductive type AlGaN-based semiconductor layer (119); a current spreading layer (115) including a first conductive type AlxGa1-xN layer (0<x??0.25) (115c) and disposed on the active layer (117); and a first conductive type AlGaN-based semiconductor layer (114) disposed on the current spreading layer (115). A composition x of Al in the first conductive type AlxGa1-xN layer (0<x??0.25) (115c) may be reduced in a direction of the active layer (117) from the first conductive type first AlGaN-based semiconductor layer (114).

Abstract: Provided is an apparatus and method for controlling a vibration transfer between vibration devices. The apparatus for controlling a vibration transfer may change vibration values of a plurality of vibration devices according to a movement of a virtual vibration body, thereby providing a user with a sense of touch of a movement of the virtual vibration body.

Abstract: The present invention relates to a method of preparing a vinyl chloride-based polymer, and more specifically, to a method comprising the steps of, (S1) preparing a mixture in which a first protective colloid auxiliary agent and a chain regulator are mixed; (S2) preparing a second protective colloid auxiliary agent including the chain regulator activated by stirring the mixture prepared in step (S1); and (S3) performing polymerization by adding a vinyl chloride-based monomer and a polymerization initiator in the presence of the second protective colloid auxiliary agent prepared in step (S2).

Abstract: Provided is a method for fabricating an electronic device, the method including: preparing a carrier substrate including an element region and a wiring region; forming a sacrificial layer on the carrier substrate; forming an electronic element on the sacrificial layer of the element region; forming a first elastic layer having a corrugated surface on the first elastic layer of the wiring region; forming a metal wirings electrically connecting the electronic element thereto, on the first elastic layer of the wiring region; forming a second elastic layer covering the metal wirings, on the first elastic layer; forming a high rigidity pattern filling in a recess of the second elastic layer above the electronic element so as to overlap the electronic element, and having a corrugated surface; forming a third elastic layer on the second elastic layer and the high rigidity pattern; and separating the carrier substrate.

Abstract: The present invention provides a method for preparing a vinyl chloride-based polymer comprising performing suspension polymerization of vinyl chloride-based monomer, wherein an aromatic hydrocarbon-based compound is added when a pressure change is 0.5 to 1.5 kg/cm2 with respect to an equilibrium pressure at a polymerization temperature in a polymerization reactor after the vinyl chloride-based monomer is added to the polymerization reactor, wherein the aromatic hydrocarbon-based compound comprises a reactive functional group having an intracarbon double bond and a hydroxyl group; and a vinyl chloride-based polymer prepared by the method and having a high polymerization degree and excellent fusion processability.

Abstract: The present invention provides a method for preparing a vinyl chloride-based polymer and a vinyl chloride-based polymer prepared thereby, the method comprising a step for performing suspension polymerization of a monomer for preparing a vinyl chloride-based polymer in the presence of a polymerization initiator, a dispersant, and water soluble cellulose ether, wherein the dispersant includes a mixture of two or more kinds of polyvinyl alcohol having different degrees of saponification, and the mole average degree of saponification of the polyvinyl mixture is from 76 mol % to 80 mol %, and the water soluble cellulose ether has a gel point of 60° C. to 90° C. and is added before the initiation of polymerization or at a time in which the polymerization conversion rate is 70% or less.

Abstract: A mobile device method for certifying a mobile device includes: generating first fixed pattern noise (FPN) information based on column FPN of an image sensor included in the mobile device; and controlling the mobile device to perform a certification by using the first FPN information.

Abstract: Provided is a method for fabricating an electronic device, the method including: preparing a carrier substrate including an element region and a wiring region; forming a sacrificial layer on the carrier substrate; forming an electronic element on the sacrificial layer of the element region; forming a first elastic layer having a corrugated surface on the first elastic layer of the wiring region; forming a metal wirings electrically connecting the electronic element thereto, on the first elastic layer of the wiring region; forming a second elastic layer covering the metal wirings, on the first elastic layer; forming a high rigidity pattern filling in a recess of the second elastic layer above the electronic element so as to overlap the electronic element, and having a corrugated surface; forming a third elastic layer on the second elastic layer and the high rigidity pattern; and separating the carrier substrate.