Abstract: Disclosed herein is an apparatus for driving a display, including a main color detector configured to detect a main color of a unit pixel based on a red image signal, a green image signal, and a blue image signal, a color difference calculator configured to calculate an image signal difference among the red image signal, the green image signal, and the blue image signal, and a weight calculator configured to calculate a weight for the red image signal, the green image signal, and the blue image signal based on the image signal difference.

Abstract: A transmission/reception method and device for isolated communication is proposed. The transmission/reception method includes performing transmission, wherein bit streams are extracted from data and two or more predetermined number of bits are modulated into one DC balanced symbol so as to generate a signal in which a plurality of symbols are listed, thereby transmitting the signal through an isolated communication circuit, and performing reception, wherein the signal is received through the isolated communication circuit and the plurality of symbols included in the signal are demodulated into the two or more predetermined number of bits so as to generate the bit streams and organize the bit streams into the data. The transmission/reception method and device may reduce power consumption at the same communication speed because a plurality of bits is represented by the one DC balanced symbol.

Abstract: Provided is a natural substance-derived composition which has few or no side effects and exhibits activity that reduces dental plaque and inhibits dental plaque acidification. Ginsenoside compound K derived from red ginseng etc. or a complex ginsenoside composition, in which Ginsenoside compound K, Ginsenoside Rg3 (R+S), Ginsenoside F2, Ginsenoside Rh2, and Ginsenoside Rb1 are mixed, has the remarkable effects of reducing dental plaque and inhibiting the production of organic acid on tooth surfaces. This composition can be used as an oral composition such as toothpaste or mouthwash, and can also be applied to food compositions such as gum, beverages, and confectionery.

Abstract: A lens-shaped porous support for fuel cell catalysts may improve electrochemical performance and increase mass transfer capability when the porous support is used as a carrier to support a fuel cell catalyst.

Abstract: A display device may include: a substrate including a display area and a non-display area, the non-display area including a pad area; a transistor and a conductive pattern on the substrate in the display area; a via layer on the transistor and the conductive pattern to cover the transistor and the conductive pattern; a first alignment electrode and a second alignment electrode on the via layer; a light emitting element between the first and second alignment electrodes; a first electrode and a second electrode that are spaced from each other, and electrically connected to the light emitting element; a plurality of pads on the substrate in the pad area; and a dummy pattern on the substrate in the pad area, and spaced from the plurality of pads. The via layer and the dummy pattern may include a same material.

Abstract: A solar power generator for forming a uniform focal region is proposed. The proposed relates to a solar power generator for forming a uniform focal region and, more particularly, to a solar power generator for forming a uniform focal region and, the solar power generator being capable of forming the uniform focal region in a specific area with an infinite number of focuses by reflected sunlight, controlling the focal region by adjusting an angle and width according to position changes of the focal region due to optical path distortion, and controlling generated power according to purpose of use.

Abstract: A slide transfer device for a vehicle includes a first rail portion fixed to a vehicle body, a second rail portion rail-coupled to the first rail portion to slide in the front and rear direction and coupled to a movement guide protruding from the first rail portion, and a damper mounted in a mounting hole formed in the second rail portion and configured to support the movement guide inserted into the mounting hole of the second rail portion.

Abstract: A display device comprises a first substrate, a first power bottom line on the first substrate, a second substrate on the first power bottom line, the second substrate having a first power connection hole to expose the first power bottom line, and a pixel driving unit including a plurality of switching elements on the second substrate.

Abstract: An electrode assembly for a rechargeable lithium battery and a rechargeable lithium battery are disclosed. The electrode assembly for a rechargeable lithium battery includes a negative electrode and a positive electrode, wherein the negative electrode includes a current collector; a negative electrode active material layer on the current collector and including a negative electrode material; and a first functional layer and an organic-inorganic composite layer sequentially on the negative electrode active material layer, the first functional layer being integrated with the negative electrode material layer, and wherein the positive electrode includes a second functional layer facing the organic-inorganic composite layer.

Abstract: A semiconductor device including a substrate including a first region and a second region, a first active pattern extending in a first direction on the first region, a second active pattern extending in the first direction on the second region, a wall structure extending in the first direction between the first region and the second region and separating the first active pattern and the second active pattern from each other, a first gate structure intersecting the first active pattern on the first region, a first two-dimensional (2D) channel layer including a first transition metal dichalcogenide between the first active pattern and the first gate structure, a second gate structure intersecting the second active pattern on the second region, and a second 2D channel layer including a second transition metal dichalcogenide between the second active pattern and the second gate structure may be provided.

Abstract: According to one aspect of the present invention, a group account service providing server capable of converting a private account into a group account in real time through a terminal of the host of a comprises: an account management unit configured to convert a first account into a group account when a group account conversion request for the first account of a host of a group is generated; a transaction ledger management unit configured to record change information in a transaction ledger for the group account when the change information including at least one of a transaction occurrence event and an information occurrence event is generated for the group account; a virtual ledger management unit configured to generate a virtual ledger to be mapped to the transaction ledger when the first account is changed to the group account.

Abstract: According to one aspect of the present invention, a group account service providing server capable of converting a private account into a group account in real time through a terminal of the host of a comprises: an account management unit configured to convert a first account into a group account when a group account conversion request for the first account of a host of a group is generated; a transaction ledger management unit configured to record change information in a transaction ledger for the group account when the change information including at least one of a transaction occurrence event and an information occurrence event is generated for the group account; a virtual ledger management unit configured to generate a virtual ledger to be mapped to the transaction ledger when the first account is changed to the group account.

Abstract: An intra prediction method according to the present invention comprises the following steps: performing a directional prediction using at least one of a neighboring pixel of a current block and a left upper corner pixel positioned at a left upper corner of the current block so as to obtain a first prediction value for the current block; obtaining a second prediction value for the current block using the reference sample positioned in the current block; and weighted summing the first prediction value and the second prediction value using a weighting matrix so as to obtain a final prediction value for the current block. According to the present invention, image encoding/decoding efficiency may be improved.

Abstract: There is provided a thin optical system for real-world occlusion in an augmented reality display. The optical system according to an embodiment includes: a first DCRA configured to reflect light beams focused on holes; a mask positioned on a light emitting surface of the first DCRA to pass or block the light beams emitted from the first DCRA; and a second DCRA configured to reflect the light beams which are focused on holes after passing through the mask. Accordingly, the optical system can implement real-world occlusion in the unit of pixel while having a thin form factor.

Abstract: There is provided an object attribute-based watermarking method for preventing leakage of a digital content. A video watermarking method according to an embodiment may acquire a requested video and watermarking information upon receiving a request for video streaming from a user, may determine some of objects appearing in the video according to the watermarking information, may transform attributes of the determined objects, and may stream the transformed video. Accordingly, by watermarking an attribute of an object appearing in a video differently according to a user and providing the video, a watermark may be difficult to perceive, robustness against various attacks may be guaranteed, and a leakage path of a content may be checked.

Abstract: Disclosed is a system for recovering lithium of a waste cathode material, including: a heat-treating unit configured to heat-treat a waste cathode material to convert into soluble and insoluble materials; a water-leaching unit configured to leach the heat-treated waste cathode material with water to separate into an insoluble material and a water-leached solution comprising a lithium ion and a carbonate ion; and an reverse osmosis (RO) concentration unit configured to concentrate the water-leached solution using reverse osmosis, and a concentration of a lithium ion in the water-leached solution which is separated from the water-leaching unit may be 2,000 ppm or less.

Abstract: Disclosed is a rail locking device in a rail structure having a mounting area provided in a first rail or a second rail. The first and second rails are coupled to each other and the first rail may slide along the second rail. In particular, the rail locking device includes a moving cover portion mounted in the mounting area, and a locking portion having wound therein the moving cover portion extending from the mounting area and configured to selectively limit extraction of the moving cover portion to temporarily fix the first rail that slides forwards or rearwards of the second rail in place.

Abstract: Disclosed is an autonomous driving control apparatus which includes a display device, a notification device, a memory storing at least one instruction, and a controller operatively connected with the display device, the notification device, and the memory. For example, the at least one instruction is configured to, when executed by the controller, cause the autonomous driving control apparatus to: determine, while performing autonomous driving control of a host vehicle, a hands-off time duration in which a driver of the host vehicle takes both hands off a steering wheel of the host vehicle, and provide a first notification using at least one of the display device or the notification device, based on the hands-off time duration being greater than a first threshold time duration or based on lateral acceleration of the host vehicle being maintained at a value greater than a threshold value for at least a second threshold time duration in a hands-off situation.

Abstract: An inter prediction method according to the present invention comprises the steps of: selecting candidate units from among reconstructed neighbor units; creating a candidate unit set with respect to units to be decoded, using the selected candidate units; determining a reference unit from among the candidate units which constitute the created candidate unit set; and performing inter prediction on the units to be decoded, using the determined reference unit. According to the present invention, image encoding/decoding efficiency can be improved.

Abstract: An air conditioner includes a housing comprising an external panel defining an external appearance and having an opening formed at the external panel; a heat exchanger configured to exchange heat with air flowing into the housing; and an air discharge unit configured to discharge air heat-exchanged by the heat exchanger out of the housing. The air discharge unit includes a first discharge unit connected to the opening and discharging air; and a second discharge unit provided at the external panel and discharging air. A method of blowing heat-exchanged air may be changed in accordance with an environment of a user.