Abstract: A display device including a touch sensor and a driving method thereof, and more particularly, a curved display device including a touch sensor and a driving method thereof, are presented. The display device includes: a touch sensor unit including a plurality of touch sensors; and at least one touch surface curved to along a first direction, wherein the touch surface includes a center region and edge regions positioned at both sides of the center region along the first direction, and wherein a sensitivity of the touch sensor in the center region is higher than a sensitivity of the touch sensors in the edge regions.

Abstract: A bearing steel has improved insulation performance by forming a continuous insulating film. The bearing steel includes 0.65 to 1.0 mass % of carbon (C), 1.6 to 2.0 mass % of chromium (Cr), 1.5 to 3.0 mass % of aluminum (Al), 0.8 to 1.2 mass % of manganese (Mn), 0.7 to 1.0 mass % of silicon (Si), 0.1 to 0.3 mass % of nickel (Ni), 0.08 to 0.12 mass % of molybdenum (Mo), and a balance of iron (Fe), in which an oxynitride layer including a nitride layer and an oxide layer is formed on the surface of a material.

Abstract: The present disclosure relates to a carbon nanotube fiber having improved physical properties and a method for manufacturing the same. The method according to the present disclosure comprises the steps of: spinning carbon nanotubes with a purity of 90% by weight or more to obtain a first carbon nanotube fiber; and heat-treating the first carbon nanotube fiber at 500 to 3,000° C. under an inert gas atmosphere to obtain a second carbon nanotube fiber, wherein the second carbon nanotube fiber has a density of 1.0 to 2.5 g/cm3.

Abstract: A porous base layer includes a base layer body stacked on a membrane electrode assembly (MEA), and a protrusion pattern provided on one surface of the base layer body that faces the membrane electrode assembly, the protrusion pattern being configured to define a guide flow path for guiding a movement of a target fluid between the membrane electrode assembly and the base layer body, obtaining advantageous effect of improving performance and operational efficiency.

Abstract: An apparatus and a method for segmenting a steel microstructure phase are provided. The apparatus includes a storage configured for storing a machine learning algorithm and a processing device that segments a microstructure phase using the machine learning algorithm. The processing device is configured to receive label data, to learn a machine learning model by use of the label data as learning data for the machine learning model, and to segment a phase of a steel microstructure image by use of the learned machine learning model.

Abstract: A memory device includes a memory cell array, a row select circuit, a refresh controller and a memory control logic. The memory cell array includes memory cells arranged in rows and columns. The row select circuit is connected to the rows. The refresh controller controls the row select circuit to apply a refresh operating voltage to one or more rows. The memory control logic decodes a command received from a memory controller and outputs a refresh command and external refresh address information. The refresh controller controls the row select circuit to perform one of an external refresh operation and an internal refresh operation, based on the refresh command that is output from the memory controller and based on whether a first row-hammering row address of the internal refresh operation is identical with a second row-hammering row address of the external refresh operation.

Abstract: A display apparatus includes: a first substrate having a front surface and a rear surface; a first display layer disposed on the front surface of the first substrate, the first display layer configured to emit light in a front direction; a second display layer disposed on the rear surface of the first substrate, the second display layer configured to emit light in a rear direction; and a pressure sensor disposed on the rear surface of the first substrate, the pressure sensor configured to sense a pressure of a touch of a user.

Abstract: The present disclosure according to at least one embodiment provides a method performed by a computing device for generating a task model based on meta-learning, including calculating a task-adaptation loss of the task model, the calculating the task-adaptation loss being based on a result of training the task model by using a training data set, updating the task model based on the task-adaptation loss, calculating a meta-optimization loss of the updated task model by using a validation data set, and further updating the updated task model based on the meta-optimization loss.

Abstract: A memory device includes a memory cell array, a row select circuit, a refresh controller and a memory control logic. The memory cell array includes memory cells arranged in rows and columns. The row select circuit is connected to the rows. The refresh controller controls the row select circuit to apply a refresh operating voltage to one or more rows. The memory control logic decodes a command received from a memory controller and outputs a refresh command and external refresh address information. The refresh controller controls the row select circuit to perform one of an external refresh operation and an internal refresh operation, based on the refresh command that is output from the memory controller and based on whether a first row-hammering row address of the internal refresh operation is identical with a second row-hammering row address of the external refresh operation.

Abstract: A lens system for LiDAR is proposed. The lens system includes: a lens part comprising a plurality of lenses to converge light provided from the light source; and a filter part included in the lens part and configured to transmit the light having a specific wavelength or the light belonging to a specific wavelength band, wherein the filter part is arranged at a specific position of the lens part such that an angle of light incident on the filter part is between 0 and 25 degrees. Accordingly, the lens system for lidar with high efficiency, high resolution, and high performance is provided by arranging the filter part at the position where the angle of light incident inside the lens part composed of the plurality of lenses is minimized.

Abstract: The present disclosure relates to a carbon nanotube fiber having improved physical properties and a method for manufacturing the same. The method according to the present disclosure comprises the steps of: spinning carbon nanotubes with a purity of 90% by weight or more to obtain a first carbon nanotube fiber; and heat-treating the first carbon nanotube fiber at 500 to 3,000° C. under an inert gas atmosphere to obtain a second carbon nanotube fiber, wherein the second carbon nanotube fiber has a density of 1.0 to 2.5 g/cm3.

Abstract: The present invention relates to a lens system for a head-up display. The technical gist of the present invention is to provide a lens system for a head-up display for avoiding a ghost image, comprising: a first group of lenses positioned toward a screen with reference to a diaphragm; and a second group of lenses arranged toward an image element, wherein, among the second groups of lenses, a lens positioned toward the image element and in direct proximity to the diaphragm is shaped to be concave toward the screen; the first group of lenses have negative refractive power; the second group of lenses have positive refractive power; and |f1|>|f2| is satisfied (wherein f1 refers to the effective focal distance of the first group of lenses, and f2 refers to the effective focal distance of the second group of lenses).

Abstract: The present invention relates to a lens system for a head-up display. The technical gist of the present invention is to provide a lens system for a head-up display, comprising: a first group of lenses positioned toward a screen with reference to a diaphragm; and a second group of lenses positioned toward an image element, wherein each lens is combined/arranged such that the DN/DT (abs.) (temperature coefficients of refractive index (10?6/° C. at 632.8 nm)) value of a lens that satisfies |P|>=40 (P is refractive power of each lens), among the plurality of lenses constituting the first and second groups of lenses, has a positive number value or a negative number value according to the refractive power, and the lens system accordingly has thermal compensation characteristics by controlling the amount of change in the focal distance of each lens.

Abstract: The present invention relates to a vesicle containing a saccharide isomerate, a hydrolyzed lupine protein, and an intercorneocyte lipid mimetics as an active ingredient, and a composition for skin external application including the vesicle, and more particularly, to a vesicle including: an aqueous phase part including a saccharide isomerate and a hydrolyzed lupine protein; and an oil phase part including an intercorneocyte lipid mimetics, lysolecithin, and glycerin. The vesicle includes the intercorneocyte lipid mimetics together with the saccharide isomerate and the hydrolyzed lupine protein as contents, so that the vesicle is excellent in a skin barrier recovery function and a skin moisturizing effect upon skin application. In addition, the vesicle is excellent in phase stability, so that the vesicle is suitable to be commercialized as various compositions for skin external application.

Abstract: A projection-type optical module is provided. More particularly, the projection-type optical module is configured to have a plurality of reflective mirrors and disposed inside a vehicle or a pillar of the vehicle so as to display an image projected from an image module on a wide screen. The projection-type optical module can be disposed in a confined space of the interior of the vehicle, so that the interior space of the vehicle can be efficiently used. Furthermore, the projection-type optical module is configured such that an image refracted in a confined space is prevented from blurring, thus making it possible to display a clear projection image on the screen module.

Abstract: A projection-type optical module is provided. More particularly, the projection-type optical module is configured to have a plurality of reflective mirrors and disposed inside a vehicle or a pillar of the vehicle so as to display an image projected from an image module on a wide screen. The projection-type optical module can be disposed in a confined space of the interior of the vehicle, so that the interior space of the vehicle can be efficiently used. Furthermore, the projection-type optical module is configured such that an image refracted in a confined space is prevented from blurring, thus making it possible to display a clear projection image on the screen module.

Abstract: The present invention relates to a vesicle containing a saccharide isomerate, a hydrolyzed lupine protein, and an intercorneocyte lipid mimetics as an active ingredient, and a composition for skin external application including the vesicle, and more particularly, to a vesicle including: an aqueous phase part including a saccharide isomerate and a hydrolyzed lupine protein; and an oil phase part including an intercorneocyte lipid mimetics, lysolecithin, and glycerin. The vesicle includes the intercorneocyte lipid mimetics together with the saccharide isomerate and the hydrolyzed lupine protein as contents, so that the vesicle is excellent in a skin barrier recovery function and a skin moisturizing effect upon skin application. In addition, the vesicle is excellent in phase stability, so that the vesicle is suitable to be commercialized as various compositions for skin external application.

Abstract: A projection lens unit for a pico-projector includes a plurality of plastic lenses and a single glass lens to minimize a change in focal length due to the heat generated inside the pico-projector. The lens array includes: a 1st lens with negative (?) refractive power, a 2nd lens with positive (+) refractive power, a 3rd lens with negative (?) refractive power, a 4th lens with negative (?) refractive power, and a 5th lens with positive (+) refractive power, wherein the 1st to 5th lenses are arranged in order from a screen upon which an image is projected, the 1st to 4th lenses are plastic lenses and the 5th lens is a glass lens.

Abstract: Disclosed herein are an apparatus and method for acquiring 3D depth information. The apparatus includes a pattern projection unit, an image acquisition unit, and an operation unit. The pattern projection unit projects light, radiated by an infrared light source, into a space in a form of a pattern. The image acquisition unit acquires an image corresponding to the pattern using at least one camera. The operation unit extracts a pattern from the image, analyzes results of the extraction, and calculates information about a 3D distance between objects existing in the space.

Abstract: A projection lens unit for a pico-projector includes a plurality of plastic lenses and a single glass lens to minimize a change in focal length due to the heat generated inside the pico-projector. The lens array includes: a 1st lens with negative (?) refractive power, a 2nd lens with positive (+) refractive power, a 3rd lens with negative (?) refractive power, a 4th lens with negative (?) refractive power, and a 5th lens with positive (+) refractive power, wherein the 1st to 5th lenses are arranged in order from a screen upon which an image is projected, the 1st to 4th lenses are plastic lenses and the 5th lens is a glass lens.