Abstract: A computing device according to an embodiment includes one or more processors, a memory in which one or more programs to be executed by the one or more processors are stored, a network information manager configured to transmit a peer-to-peer (P2P) network information of the computing device and network quality information at the time of connection of the computing device to a management server, and a network monitor configured to generate network quality information by measuring a network quality at the time of connection of the computing device.

Abstract: The present disclosure provides a novel compound of Chemical Formula 1 and an organic light emitting device including the same, X1, X2, A4, A5, Ar1, Ar2, and R1 to R4 are described herein.

Abstract: The present disclosure relates to an organic electroluminescent compound represented by formula 1 and an organic electroluminescent device comprising the same. By comprising the compounds according to the present disclosure, it is possible to provide an organic electroluminescent device having improved luminous efficiency and/or lifetime properties.

Abstract: A data transmission method according to an embodiment is performed by a computing device including one or more processors and a memory in which one or more programs to be executed by the one or more processors are stored. The data transmission method includes receiving, from connected client devices, peer-to-peer (P2P) network information of the client devices, extracting one or more of information on whether network access is successful and network quality information, which are matched with the P2P network information and pre-stored, and determining one of a first data transmission path and a second data transmission path as a data transmission path for the client devices based on one or more of the information on whether network access is successful and the network quality information.

Abstract: The present disclosure relates to an organic electroluminescent device comprising an anode, a cathode, and an organic layer between the anode and the cathode, wherein the organic layer comprises one or more light-emitting layers; and at least one light-emitting layer comprises one or more dopant compounds and two or more host compounds. The organic electroluminescent device of the present disclosure has low driving voltage, high color purity, high luminous efficiency, and a long lifespan.

Abstract: The present specification relates to a compound of Formula 1, a coating composition including the compound, an organic light emitting device formed by using the coating composition, and a manufacturing method thereof.

Abstract: An etchant composition includes: an inorganic acid compound at 9.0 wt % to 9.9 wt %; an inorganic salt compound at 5.0 wt % to 10.0 wt %; an organic acid compound at 35 wt % to 45 wt %; a lactate-based compound at 10 wt % to 20 wt %; a nitrogen cyclic compound containing oxygen at 0.1 wt % to 1.0 wt %; and a remaining amount of water such that a total weight of the etchant composition is 100 wt %, wherein the inorganic acid compound is an etchant composition having an acid dissociation constant (pKa) value of ?1.0 to ?3.0.

Abstract: A display device including a substrate including a display region and a non-display region disposed at one side of the display region, the display region includes first and second areas adjacent to each other; a display unit disposed on a front surface of the substrate, the display unit including a plurality of pixels for displaying an image; a cushion layer disposed on a rear surface of the substrate, the cushion layer including a first opening portion corresponding to the first area; a fingerprint sensor provided in the first opening portion of the cushion layer, the fingerprint sensor sensing a fingerprint of a user; and a first light-blocking layer disposed on a rear surface of the substrate, the first light-blocking layer covering at least part of the cushion layer and a lower surface of the fingerprint sensor.

Abstract: The present invention relates to a multi-component host material and an organic electroluminescent device comprising the same. By comprising a specific combination of the multi-component host compounds, the organic electroluminescent device according to the present invention can provide high luminous efficiency and excellent lifespan characteristics.

Abstract: The present invention relates to a multi-component host material and an organic electroluminescent device comprising the same. By comprising a specific combination of the multi-component host compounds, the organic electroluminescent device according to the present invention can provide high luminous efficiency and excellent lifespan characteristics.

Abstract: The present disclosure relates to an organic electroluminescent compound and an organic electroluminescent device comprising the same. The organic electroluminescent compound of the present disclosure has a high glass transition temperature that can be used in a deposition process. Further, by comprising the organic electroluminescent compound of the present disclosure, an organic electroluminescent device having a low driving voltage, high luminous efficiency, and/or improved lifespan characteristics can be provided.

Abstract: The present invention relates to hydrogen-detectable composite particles through irreversible discoloration and a method for manufacturing same. More particularly, the present invention relates to composite particles having palladium oxide (PdO) particles adhered on the surfaces of zinc oxide (ZnO) nanoparticles and a method for manufacturing same. In addition, the present invention relates to applications of hydrogen detecting sensors, nanofibers, polymer films, paints, or the like using the composite particles.

Abstract: The present invention provides a pinch-preventing safety hinge for a hinged door, which connects a door to a doorjamb mounted in a wall so that the door is opened or closed while rotating about the doorjamb and which includes a hinge unit including a fixing member secured to the doorjamb and a rotary member secured to one side end of the door and hingedly coupled to the fixing member so as to rotate, and a shielding unit rotatably coupled to a rotary shaft of the fixing member or the rotary member, the shielding unit being fixed to the fixing member by hinge motion of the hinge unit.

Abstract: The present specification relates to a compound represented by Chemical Formula 1, a coating composition comprising the compound, an organic light emitting device formed using the coating composition, and a method for manufacturing the same.

Abstract: The present disclosure relates to an organic electroluminescent device. The organic electroluminescent device of the present disclosure shows high luminous efficiency and good lifespan by comprising a specific combination of the plural kinds of host compounds and a specific hole transport compound.

Abstract: The present invention relates to an organic electroluminescent device. The organic electroluminescent device of the present invention shows high luminous efficiency and good lifespan by comprising a specific combination of the plural kinds of host compounds and a specific hole transport compound.

Abstract: The present disclosure provides a novel heterocyclic compound represented by the following Chemical Formula 1 and an organic light emitting device comprising the same: wherein R1, R2, L, X, Z1, Z2, L1, L2, and Ar1 to Ar4 are described herein.

Abstract: The present invention relates to an organic electroluminescent device comprising at least one light-emitting layer between an anode and a cathode, wherein the light-emitting layer comprises a host and a phosphorescent dopant; the host consists of multi-component host compounds; at least a first host compound of the multi-component host compounds is a specific bicarbazole derivative containing an aryl group, and a second host compound is a specific carbazole derivative including a nitrogen-containing heteroaryl group. According to the present invention, the organic electroluminescent device using the multi-component host compounds has a high efficiency and long lifespan compared with the conventional device using one component host compound.

Abstract: The present specification provides a coating composition including a fluorene derivative, an organic light emitting device formed using the coating composition, and a method for manufacturing the same.

Abstract: An accident monitoring system based on UWB-based real-time positioning comprises a UWB tag, a plurality of UWB anchors installed around a processing line and receiving the worker's position from the UWB tag and sensing predetermined information for the processing line, an AP receiving the worker's position and the predetermined information for from the plurality of UWB anchors, a server receiving the worker's position and the predetermined information for from the AP, storing the worker's position and the predetermined information for, and determining whether the worker is in a preset access-limited area, and a programmable logic control (PLC) box, upon receiving proximity information indicating that the worker is the access-limited area from the server through the AP, controlling to stop the industrial robot, the conveyor belt, and the motor in the processing line.