Abstract: The disclosed is a preparation method of a propylene-1-butene copolymer by using a catalyst that includes a novel metallocene compound having excellent copolymerization activity.

Abstract: An electric power transmission apparatus of a sunroof for a vehicle may include a moving glass mounted with an electric generator, and configured to slide between an opened position and a closed position, an upper electric conduction device coupled at a lower side of the moving glass, and including a moving spring that is electrically connected with the electric generator and coupled to protrude downward, a front electric conduction device including a front support portion that is a nonconductor, and a close spring that comes into contact with the moving spring when the moving glass moves to the closed position, and a rear electric conduction device including a rear support portion that is a nonconductor, and an open spring that comes into contact with the moving spring when the moving glass moves to the opened position.

Abstract: An electric power transmission apparatus of a sunroof for a vehicle may include a moving glass mounted with an electric generator, and configured to slide between an opened position and a closed position, an upper electric conduction device coupled at a lower side of the moving glass, and including a moving spring that is electrically connected with the electric generator and coupled to protrude downward, a front electric conduction device including a front support portion that is a nonconductor, and a close spring that comes into contact with the moving spring when the moving glass moves to the closed position, and a rear electric conduction device including a rear support portion that is a nonconductor, and an open spring that comes into contact with the moving spring when the moving glass moves to the opened position.

Abstract: An organic light emitting diode (OLED) display with an improved light efficiency and a method of manufacturing the OLED display are disclosed. The OLED display includes a substrate, an insulation layer on the substrate and having concave portions, first electrodes on the insulation layer, pixel defining layers (PDLs) on the insulation layer and configured to define the first electrodes into pixels, organic light emitting layers on the first electrodes as defined by the pixels, and a second electrode on the organic light emitting layers. Each of the concave portions includes a bottom surface and inclined parts. Each of the first electrodes is on the bottom surface and the inclined parts of one of the concave portions. Embossings are on a part of a surface of the PDLs.

Abstract: A method of providing a panoramic image and an imaging device thereof. The method may include: extracting at least one panoramic section, which is to generate a panoramic image, from moving picture data; displaying at least one thumbnail image respectively corresponding to the at least one panoramic section on a display screen; and if one of the at least one thumbnail image is selected, generating a panoramic section corresponding to the selected thumbnail image as a panoramic image. Therefore, even if a user performs capturing without the aim of acquiring a panoramic image at a capturing time, the user can aquire a panoramic image later by using moving picture data.

Abstract: A stretchable display device includes: a stretchable substrate; a plurality of light emitting units on the stretchable substrate; and a plurality of reflective mirrors positioned to correspond to the light emitting units, respectively, and reflecting light emitted from the light emitting units, respectively.

Abstract: A printed circuit board is disclosed having a substrate with an insulating layer, aluminum foil layers disposed on both sides of the insulating layer, and a through-hole formed in the insulating layer and aluminum foil layers. A metal layer is disposed over an exposed surface of the insulating layer positioned along an inner surface of the through-hole. A zinc film is positioned on a surface of the aluminum foil. A metal film is disposed over the zinc film. A plating film is disposed on a surface of the metal film. A circuit pattern is etched through the aluminum foil and the plating film.

Abstract: In a lens module, a concave portion may be formed on an image-side surface of a first lens, a convex portion protruding toward the concave portion may be formed on an object-side surface of a second lens, an outer region of the concave portion of the first lens and an outer region of the convex portion of the second lens may be closely adhered to each other, the concave portion and the convex portion may be spaced apart from each other, and a gap between the concave portion and the convex portion in an optical axis direction and a gap between the concave portion and the convex portion in a direction perpendicular to an optical axis may be formed so as to be different from each other.

Abstract: There is provided a lens module including: a first lens group including a plurality of lenses mounted in a lens barrel in a state in which optical axes thereof are aligned with each other by coupling therebetween; and a second lens group including a plurality of lenses sequentially mounted in the lens barrel, such that optical axes thereof are aligned with each other.

Abstract: The present disclosure relates to a power steering apparatus of a vehicle that includes: a rack housing configured to surround a rack bar and having an opening portion formed at one side thereof through which a steering shaft passes; a torque sensor cover that has a torque sensor therein and has a communicating hole formed therein through which the steering shaft passes and a first penetration portion having a first through-hole formed therein through which the fastening member passes; and a cover connecting member that has an insertion portion and a second penetration portion in order to connect the rack housing and the torque sensor cover, the insertion portion having an insertion hole formed therein where the opening portion is inserted and coupled and the second penetration portion having a second through-hole that is formed therein to correspond to the fastening hole and through which the fastening member passes.

Abstract: The present invention relates to a metallocene compound having novel structure which can provide various selectivity and activity to polyolefin copolymers, a preparation method thereof, and a preparation method of polyolefin using the metallocene compound.

Abstract: A dual-opening panoramic sunroof may include front glass which slides forward and rearward by being connected with a front sled that is slidable forward and rearward along a mechanism rail, a rear glass which slides forward and rearward by being connected with a rear sled, a front timing plate which has a rear end rotatably coupled to the rear sled, and a front end formed with a front groove to accommodate a portion of the front sled, and selectively connects the front sled and the rear sled, a rear tilt lever which is disposed rearward of the mechanism rail, and a rear timing plate which has a rear end rotatably coupled to the rear tilt sled, and a front end formed with a rear groove formed to selectively accommodate a portion of the rear sled, and connects the rear sled and the rear tilt sled.

Abstract: The present invention relates to a modular cooling apparatus for a high-voltage direct-current transmission system. A sub-module (10) according to the present invention comprises a power unit (12) in the front and a capacitor unit (13) in the rear, and a heat sink (30) for discharging heat generated from the interior is provided in an interior space (14?) of a power unit housing (14) forming the exterior of the power unit (12). A coolant path (31) is provided in the interior of the heat sink (30). The entrance and exit of the coolant path (31) are located adjacent to the bottom surface of the interior space (14?). Connecting couplers (20) for supplying coolant to the interior space (14?) are provided on the sloped surface (16) on the bottom end of the front surface (15) of the power unit housing (14). The sloped surface (16) is formed so as to face the ground at an angle.

Abstract: A technology is disclosed for controlling switching of power converters included in a power converting system. Phase angles are allocated to a plurality of sub-units corresponding to the power converters, and the respective sub-units create local switching carriers based on the allocated phase angles. The sub-units compare a reference AC voltage with the local switching carriers, and switch the power converters according to the result of the comparison.

Abstract: The present invention relates to a converter for electric power having multiple sub-modules connected in series, the sub-modules having an energy storage unit and multiple power semiconductor circuits connected in parallel to the energy storage unit, and which causes an electric current to bypass a sub-module in case the breakdown of the sub-module occurs. To this end, the converter for electric power according to the present invention has multiple sub-modules connected to each other in series, the sub-modules having an energy storage unit and at least one power semiconductor circuit that is connected in parallel to the energy storage unit and comprises multiple power semiconductor switches and freewheeling diodes, wherein each of the sub-modules comprises a bypass switching unit, which is connected in parallel to any one of said at least one power semiconductor circuit, and bypasses an electric current via the bypass switching unit.

Abstract: The present invention relates to a preparation method of a propylene-1-butene copolymer and a propylene-1-butene copolymer obtained therefrom. More specifically, it relates to a method of preparing a propylene-1-butene copolymer by using a catalyst that includes a novel metallocene compound having excellent copolymerization activity, and a propylene-1-butene copolymer obtained by the method. According to the present invention, since the copolymer is prepared by copolymerizing propylene and 1-butene by using a novel metallocene compound having an excellent copolymerization activity and hydrogen reactivity, the properties of the copolymer can be easily controlled and the propylene-1-butene copolymer having excellent mechanical properties can be obtained.

Abstract: The present invention relates an actuator including a housing, a drive unit installed in the housing and provided with a rotatable shaft, a bearing part installed in the housing to rotatably support the shaft at different positions, at least one bearing part included in the bearing part being fixed to the housing, and a gear unit accommodated in the housing, the gear unit being rotated about different axes rotational power transmitted thereto from the shaft.

Abstract: The present invention relates to a photocurable and thermosetting resin composition, including an acid modified oligomer, a photopolymerizable monomer, a thermosetting binder resin, a photoinitiator, two or more kinds of spherical alumina particles having different particle diameters from each other, and an organic solvent, a dry film solder resist obtained from the resin composition, and a circuit board including the dry film solder resist.

Abstract: A lens module includes: a first lens including a concave part and a first outer horizontal surface extended from an outer side of the concave part; a second lens including a convex part coupled to the concave part and a second outer horizontal surface extended from an outer side of the convex part; and a first ventilation part disposed between the convex part and the concave part such that a space between the first lens and the second lens is connected with an outside environment.

Abstract: An organic light emitting diode display includes a plurality of switches, a plurality of organic light emitting diodes respectively connected to the switches, and a polarization layer on the organic light emitting diodes. The polarization layer includes a light blocking area and a plurality of color filters. The light blocking area has a plurality of openings respectively exposing the organic light emitting diodes. The color filters respectively fill the openings. A first dot opening includes a first red opening, a first green opening, and a first blue opening elongated in a first direction. A second dot opening includes a second red opening, a second green opening, and a second blue opening elongated in a second direction crossing the first direction.