Abstract: The present invention relates to: a pyrene derivative compound having a specific structure; and a high efficiency organic light-emitting device employing the pyrene derivative compound in a light emitting layer and thus having excellent light-emitting characteristics. The organic light-emitting device according to the present invention can be configured as a high efficiency organic light-emitting device having excellent light-emitting characteristics by employing the pyrene derivative compound having the specific structure as a host in the light emitting layer, and thus can be usefully applied industrially in lighting devices, as well as various display devices such as flat, flexible, and wearable displays.

Abstract: A hydrogen supply method includes a two-side heat exchange mode in which both introducing a second fluid into a hydrogen storage part after the second fluid exchanges heat with a first fluid in a second heat exchanger in a state in which a compressor is driven to compress the first fluid and introducing the second fluid into the hydrogen storage part after the second fluid is heated or cooled in a thermal device are performed. The method also includes a one-side heat exchange mode in which one of introducing the second fluid into the hydrogen storage part after the second fluid exchanges heat with the first fluid in the second heat exchanger in a state in which the compressor is driven to compress the first fluid and introducing the second fluid into the hydrogen storage part after the second fluid is heated or cooled in the thermal device is performed.

Abstract: An organic light-emitting device according to the present invention uses a pyrene derivative compound having a characteristic structure as a host in a light-emitting layer to realize a long-lifespan and high-efficiency organic light-emitting device having excellent light-emitting characteristics in terms of lifespan and luminescence efficiency. Accordingly, the organic light-emitting device can be usefully applied, in the industrial aspect, for various display devices such as flat panel, flexible, and wearable displays, as well as lighting devices.

Abstract: Provided are a vehicle sensor cleaning apparatus and a control method thereof. The vehicle sensor cleaning apparatus includes a liquid sprayer configured to spray washer fluid on at least one sensor arranged in a vehicle, an air sprayer configured to spray air on the at least one sensor, a liquid controller configured to control washer fluid spraying of the liquid sprayer, and an air controller configured to control air spraying of the air sprayer.

Abstract: A battery pack includes a plurality of battery cell stacks, each battery cell stack having a plurality of battery cells stacked in a first direction; a pack tray in which the plurality of battery cell stacks are accommodated in a plurality of rows extending in a second direction perpendicular to the first direction, each row having multiple battery cell stacks arranged in the second direction, the pack tray including: a base, a plurality of sidewalls extending from the base, a plurality of first beams extending in the second direction to separate the plurality of rows into groups, and a plurality of partition walls extending in the second direction, each partition wall being located within a corresponding group to separate adjacent battery cells stacks from each other; a pack cover covering an opening portion of the pack tray opposite the base; and a plurality of elastic members.

Abstract: A display device includes: a substrate; a first conductive layer on the substrate and comprising a first signal line; an insulating layer pattern on the first conductive layer; a semiconductor pattern on the insulating layer pattern; a gate insulating layer on the semiconductor pattern; and a second conductive layer comprising a gate electrode on the gate insulting layer and a first source/drain electrode and a second source/drain electrode, each on at least a part of the semiconductor pattern, wherein the insulating layer pattern and the semiconductor pattern have a same planar shape, the semiconductor pattern comprises a channel region overlapping the gate electrode, a first source/drain region on a first side of the channel region and a second source/drain region on a second side of the channel region, and the first source/drain electrode electrically connects the first source/drain region and the first signal line.

Abstract: Disclosed are novel compounds of Chemical Formula 1, optical isomers of the compounds, and pharmaceutically acceptable salts of the compounds or the optical isomers. The compounds, isomers, and salts exhibit excellent activity as GLP-1 receptor agonists. In particular, they, as GLP-1 receptor agonists, exhibit excellent glucose tolerance, thus having a great potential to be used as therapeutic agents for metabolic diseases. Moreover, they exhibit excellent pharmacological safety for cardiovascular systems.

Abstract: The present invention relates to a novel heterocyclic compound usable in an organic light-emitting device and to an organic light-emitting device comprising same, wherein [chemical formula A] is as described in the detailed description of the invention.

Abstract: An image sensor may include a first photo-sensing device on a semiconductor substrate and configured to sense light of a first wavelength spectrum, and second and third photo-sensing devices integrated in the semiconductor substrate and configured to sense light of a second and third wavelength spectrum, respectively. The first photo-sensing device may overlap each of the second and third photo-sensing devices in a thickness direction of the semiconductor substrate. The second and third photo-sensing devices do not overlap in the thickness direction and each have an upper surface, a lower surface, and a doped region therebetween. The third photo-sensing device includes an upper surface deeper further from the upper surface of the semiconductor substrate than the upper surface of the second photo-sensing device and a doped region thicker than the doped region of the second photo-sensing device. The image sensor may omit the first photo-sensing device.

Abstract: A method of measuring adhesive strength includes setting an evaluation time (te), fixing a substrate and an adhesive member to a measurement device, pulling the adhesive member fixed to the measurement device with a first measurement force (Fe1) for the evaluation time (te), pulling the adhesive member fixed to the measurement device is pulled with a second measurement force (Fe2), which is obtained by increasing the first measurement force (Fe1) by a preset amount, for the evaluation time (te), and determining a reference measurement force (Fes) which is a static force applied to the adhesive member when a distance by which a first portion of the adhesive member is detached from the substrate is equal to a preset distance (dt) is determined.

Abstract: Disclosed is a preference-based service providing method for operating preference-based service providing system and device by executing an artificial intelligence (AI) algorithm and/or a machine learning algorithm in a 5G environment connected for the Internet of things. A preference-based service providing method according to an embodiment of the present disclosure may include acquiring user video information obtained by imaging a user who is using an electronic device, analyzing a preference of the user for a service provided by the electronic device on the basis of the user video information including a face image and a posture image of the user, setting a priority of the service provided by the electronic device on the basis of the preference of the user, and providing a recommendation list of services provided by the electronic device on the basis of priorities of the services.

Abstract: A method of measuring adhesive strength includes setting an evaluation time (te), fixing a substrate and an adhesive member to a measurement device, pulling the adhesive member fixed to the measurement device with a first measurement force (Fe1) for the evaluation time (te), pulling the adhesive member fixed to the measurement device is pulled with a second measurement force (Fe2), which is obtained by increasing the first measurement force (Fe1) by a preset amount, for the evaluation time (te), and determining a reference measurement force (Fes) which is a static force applied to the adhesive member when a distance by which a first portion of the adhesive member is detached from the substrate is equal to a preset distance (dt) is determined.

Abstract: Systems and methods for sharing data among a plurality of block chain networks are disclosed.

Abstract: A display device includes: a display panel including a flat area and a bending area positioned adjacent to the flat area, a panel bottom sheet arranged under the display panel and overlapping with the flat area and the bending area, and a panel-sheet coupling layer between the display panel and the panel bottom sheet and including a first panel-sheet coupling part arranged across the flat area and the bending area, and a second panel-sheet coupling part overlapping with the bending area and extended continuously along a side of the first panel-sheet coupling part, a thickness of the panel-sheet coupling layer becoming smaller from a central portion of the bending area toward a side portion of the bending area, and the panel bottom sheet having a curved shape that is gentler than a curved shape of the display panel.

Abstract: The present invention relates to an IoT device managed based on a blockchain, and system and method thereof. A method for managing information of an IoT device performed by a client according to the present invention may comprise: transmitting a request for user registration to the IoT device; receiving device information including identification information of the IoT device from the IoT device; retrieving the received device information in a blockchain of a blockchain system to receive search result information associated with the device information recorded as a transaction in the blockchain from the blockchain system; and verifying whether the IoT device is a device registered as a validly usable device based on the received search result information.

Abstract: A panel bottom sheet and a display device including the same are provided. The panel bottom sheet comprises a main sheet, a bonding member disposed on a bottom surface of the main sheet and partially exposing the bottom surface of the main sheet, a release film disposed below the bonding member, and a spacer disposed between the release film and the bottom surface of the main sheet. The bottom surface of the main sheet is divided into a cover region in which the bonding member is disposed and an exposed region which is exposed by the bonding member. The release film is disposed to overlap with the cover region and the exposed region, and the spacer is disposed to overlap with the exposed region.

Abstract: Disclosed are a data management system and method of distributing a digital content file by using an on-off hybrid blockchain network technology, in which transaction information data having a large volume is processed on an off-blockchain network and the final results of each transaction are recorded on an on-blockchain network. The system and method have an advantage of increasing the number of transactions that can be processed per second, thereby enabling distribution of a large volume of data. In addition, the system and method can encourage every node across a network to participate in distribution of data as file senders by rewarding each of the nodes for the participation on the basis of the contribution of each node.

Abstract: Disclosed is a preference-based service providing method for operating preference-based service providing system and device by executing an artificial intelligence (AI) algorithm and/or a machine learning algorithm in a 5G environment connected for the Internet of things. A preference-based service providing method according to an embodiment of the present disclosure may include acquiring user video information obtained by imaging a user who is using an electronic device, analyzing a preference of the user for a service provided by the electronic device on the basis of the user video information including a face image and a posture image of the user, setting a priority of the service provided by the electronic device on the basis of the preference of the user, and providing a recommendation list of services provided by the electronic device on the basis of priorities of the services.

Abstract: A display device includes: a display panel including a flat area and a bending area positioned adjacent to the flat area, a panel bottom sheet arranged under the display panel and overlapping with the flat area and the bending area, and a panel-sheet coupling layer between the display panel and the panel bottom sheet and including a first panel-sheet coupling part arranged across the flat area and the bending area, and a second panel-sheet coupling part overlapping with the bending area and extended continuously along a side of the first panel-sheet coupling part, a thickness of the panel-sheet coupling layer becoming smaller from a central portion of the bending area toward a side portion of the bending area, and the panel bottom sheet having a curved shape that is gentler than a curved shape of the display panel.

Abstract: A panel bottom sheet and a display device including the same are provided. The panel bottom sheet comprises a main sheet, a bonding member disposed on a bottom surface of the main sheet and partially exposing the bottom surface of the main sheet, a release film disposed below the bonding member, and a spacer disposed between the release film and the bottom surface of the main sheet. The bottom surface of the main sheet is divided into a cover region in which the bonding member is disposed and an exposed region which is exposed by the bonding member. The release film is disposed to overlap with the cover region and the exposed region, and the spacer is disposed to overlap with the exposed region.