Abstract: Various embodiments of the present invention pertain to an electronic device and an operation method therefor.

Abstract: Various embodiments of the present invention relate to: an electronic device for providing a voice-based service to a user by additionally using an input/output function of an external device connected through near-field communication; a server device; and an operation method thereof.

Abstract: An electronic device according to various embodiments may include: a microphone; a speaker; a wireless communication circuit set to support wireless fidelity (Wi-Fi); a processor operatively connected to the microphone, the speaker, and the wireless communication circuit, and a memory operatively connected to the processor, wherein the memory can store instructions which upon being executed cause the processor to: receive first user utterances through the microphone; transmit first data, including first voice data related to the first user utterances and first metadata related to the first voice data, to an external server through the wireless communication circuit; and receive, from the external server through the wireless communication circuit, a response related to the electronic device selected as an input device for a voice-based service.

Abstract: Various embodiments of the present invention pertain to an electronic device and an operation method therefor.

Abstract: Various embodiments of the present invention relate to: an electronic device for providing a voice-based service to a user by additionally using an input/output function of an external device connected through near-field communication; a server device; and an operation method thereof.

Abstract: An electronic device with a heat radiation structure using an audio device is provided. The electronic device includes a first housing, a speaker module disposed on a surface of the first housing and configured to output sounds in a first direction, a sound reflection plate mounted above the surface of the first housing and having a first surface facing the speaker module, and a heat emission device disposed on a second surface of the sound reflection plate. The sound reflection plate may absorb heat generated from the heat emission device, and discharge the absorbed heat to the outside of the electronic device through a space between the surface of the first housing and the first surface of the sound reflection plate.

Abstract: An electronic device with a heat radiation structure using an audio device is provided. The electronic device includes a first housing, a speaker module disposed on a surface of the first housing and configured to output sounds in a first direction, a sound reflection plate mounted above the surface of the first housing and having a first surface facing the speaker module, and a heat emission device disposed on a second surface of the sound reflection plate. The sound reflection plate may absorb heat generated from the heat emission device, and discharge the absorbed heat to the outside of the electronic device through a space between the surface of the first housing and the first surface of the sound reflection plate.

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: 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: The present invention relates to a method for preparing polymer-nanoparticles having a core-shell structure by uniformly coating a polymer on metal and inorganic particles, polymer-nanoparticles prepared thereby, and a polymer-nanoparticle composite comprising the same, and more specifically, a method for preparing polymer-nanoparticles having a core-shell structure by uniformly coating a polymer on metal and inorganic particles, polymer-nanoparticles prepared thereby, and a polymer-nanoparticle composite including the same, wherein when forming a polymer coating layer on surfaces of particles that are not subjected to separate surface treatment, excessive polymers uncoated on nanoparticles are easily removed by adding to an ionic liquid or an apolar solvent so that the polymer coating layer is formed with a nanometer-scale uniform thickness and a dense coating density, thereby showing excellent dispersibility in a polymer matrix.

Abstract: The present invention relates to a method for preparing polymer-nanoparticles having a core-shell structure by uniformly coating a polymer on metal and inorganic particles, polymer-nanoparticles prepared thereby, and a polymer-nanoparticle composite comprising the same, and more specifically, a method for preparing polymer-nanoparticles having a core-shell structure by uniformly coating a polymer on metal and inorganic particles, polymer-nanoparticles prepared thereby, and a polymer-nanoparticle composite including the same, wherein when forming a polymer coating layer on surfaces of particles that are not subjected to separate surface treatment, excessive polymers uncoated on nanoparticles are easily removed by adding to an ionic liquid or an apolar solvent so that the polymer coating layer is formed with a nanometer-scale uniform thickness and a dense coating density, thereby showing excellent dispersibility in a polymer matrix.

Abstract: The present invention relates to a method of preparing a microcapsule with a double-layered structure which comprises the steps of performing an interfacial polymerization of an amine-aldehyde prepolymer on droplets containing an inorganic metal precursor selected from carboxylate and alkoxide compounds, and hydrolyzing the including inorganic precursors for formation of inorganic inner layer. The method of the present invention can prepare a microcapsule with a double-layered structure of an inorganic inner layer and a polymer outer layer, which is effective for eluting and substituting a core material inside the capsule.

Abstract: Disclosed is a method for preparing a poly(ethersulfonimide or ethersulfonamide) copolymer using cyclic oligomers, and more particularly, to a method for preparing a poly(ethersulfonimide or ethersulfonamide) copolymer by preparing a cyclic ether sulfone oligomer and a cyclic imide or amide oligomer and subjecting the cyclic ether sulfone oligomer and the cyclic imide or amide oligomer to ring-opening copolymerization in the presence of an alkali metal fluoride catalyst.

Abstract: Disclosed is a method for preparing a poly(ethersulfonimide or ethersulfonamide) copolymer using cyclic oligomers, and more particularly, to a method for preparing a poly(ethersulfonimide or ethersulfonamide) copolymer by preparing a cyclic ether sulfone oligomer and a cyclic imide or amide oligomer and subjecting the cyclic ether sulfone oligomer and the cyclic imide or amide oligomer to ring-opening copolymerization in the presence of an alkali metal fluoride catalyst.

Abstract: A method, medium, and apparatus of a self-propelled mobile unit with obstacle avoidance during wall-following. In the self-propelled mobile unit, a carrying unit may move the mobile unit by using a transmitted power, and a sensor unit can detect an obstacle and a wall, which may be respectively placed in front of and to the side of the mobile unit, with respect to a moving direction of the carrying unit. A controller may direct the carrying unit by generating a path along which the carrying unit moves according to a detection result from the sensor unit. Accordingly, the controller can direct the carrying unit to move while maintaining a predetermined distance (within a predetermined range) from the wall. If the sensor unit detects an obstacle, the controller directs the carrying unit to move in an obstacle free direction.

Abstract: The present invention relates to a method of preparing a microcapsule with a double-layered structure which comprises the steps of performing an interfacial polymerization of an amine-aldehyde prepolymer on droplets containing an inorganic metal precursor selected from carboxylate and alkoxide compounds, and hydrolyzing the including inorganic precursors for formation of inorganic inner layer. The method of the present invention can prepare a microcapsule with a double-layered structure of an inorganic inner layer and a polymer outer layer, which is effective for eluting and substituting a core material inside the capsule.

Abstract: The present invention relates to aromatic polyether resins crosslinked with amic acid or imide side chain, and more particularly, to the aromatic polyether resin crosslinked by amic acid or imide side chain, which is produced by heat curing of amic acid, wherein introduction of imide groups to the basic backbone provides excellent chemical resistance as well as heat resistance and improves surface roughness when coated as a thin film so that it can be suitable for films and flexible display plate substrate.

Abstract: A method, medium, and apparatus of a self-propelled mobile unit with obstacle avoidance during wall-following. In the self-propelled mobile unit, a carrying unit may move the mobile unit by using a transmitted power, and a sensor unit can detect an obstacle and a wall, which may be respectively placed in front of and to the side of the mobile unit, with respect to a moving direction of the carrying unit. A controller may direct the carrying unit by generating a path along which the carrying unit moves according to a detection result from the sensor unit. Accordingly, the controller can direct the carrying unit to move while maintaining a predetermined distance (within a predetermined range) from the wall. If the sensor unit detects an obstacle, the controller directs the carrying unit to move in an obstacle free direction.

Abstract: The present invention relates to a reactive photo acid-generating agent and a heat-resistant photoresist composition comprising the same. In particularly, the present invention relates to the heat-resistant photoresist composition comprising the photo acid-generating agent expressed by the following formula (1), which can increase the degree of polymerization, and polyamide oligomers having acetal or its cyclized derivatives, which have an ability of that light-exposed area is dissolved in the developer and light-unexposed area is convertible to a heat-resistant polymer in the latter heating process and thus, it can be used for passivation layer, buffer coat or layer-insulating film of the multilayer printed circuit board, wherein and R are the same as defined in the detailed description of the Invention.

Abstract: The present invention relates to a reactive photo acid-generating agent and a heat-resistant photoresist composition comprising the same.