Abstract: The present invention provides a composite tool bar which has a composite body part (10) covered with a covering (20), with a plurality of bites (TO1-T05) mounted on the composite body part (10) along a longitudinal direction. The composite tool bar includes a first insert (240) which is inserted into the composite body part (10). A bite mounting hole (210) is provided in the first insert (240) to receive a bite therein. A bite height adjusting hole (220) is axially aligned with the bite mounting hole (210) to receive therein a bite height adjusting bolt (BO1-B05). The composite tool bar further includes a second insert (250) which is inserted into the composite body part (10) to be coupled to the first insert (240). A bite holding hole (230) is provided in the second insert (250) to receive therein a bite holding bolt (B06-B10).

Abstract: The present invention discloses a bearing assembly capable of assuring mechanical strength and reducing a friction coefficient and stress concentration, and a method for manufacturing the same. The present invention comprises a spherical journal and a hemispherical bearing that is made of a fiber reinforced composite and has a bearing surface for establishing a spherical pair with the spherical journal. The fiber reinforced composite can be constructed by arranging a uni-directional prepreg, woven fiber prepregs and staple-fiber prepregs in a variety of configurations, and thermoplastic resin particles or self-lubrication particles are uniformly provided on the bearing surface. It is possible to alleviate stress concentration generated on the bearing surface by forming a plurality of air channels capable of imparting directivity on an outer surface of the hemispherical bearing.

Abstract: An array substrate for an LCD device includes a first TFT including a first semiconductor layer, a first gate electrode, wherein the first gate electrode is directly over the first semiconductor layer; a first protrusion extending from the first gate electrode along an edge of the first semiconductor layer; a second TFT including a second semiconductor layer, a second gate electrode, wherein the second gate electrode is directly over the second semiconductor layer; a second protrusion extending from the second gate electrode along an edge of the second semiconductor layer; a third TFT connected to crossed data and gate lines including a third semiconductor layer, a third gate electrode, wherein the third gate electrode is directly over the third semiconductor layer; a third protrusion extending from the third gate electrode along an edge of the third semiconductor layer; and a pixel electrode.

Abstract: Disclosed herein is a vibration actuator. The vibration actuator excites a mass member by interaction between an electric field of a vibration coil provided in an inner space of a case and a magnetic field of a magnetic field unit disposed corresponding to the vibration coil. The vibration actuator comprises an elastic wire having a wire body fixed to the outer surface of the mass member and elastic ends fixed to the inner surface of the case. The elastic wire is connected between the case and the mass member for elastically supporting mass member. The present invention minimizes change of natural frequency due to manufacturing tolerance of raw materials to improve vibration characteristics of the vibration actuator, simplifies and reduces a manufacturing process to improve productivity of the vibration actuator, and improves durability to increase the service life of the vibration actuator.

Abstract: A liquid crystal display device, including: a gate line with a double conductive layer structure on a substrate; a data line crossing the gate line with an interlayer insulating film in between to define a pixel area; a pixel electrode formed of the double conductive layer structure in the pixel area and a lower conductive layer of the double conductive layer is exposed through a transmission hole; and a thin film transistor having a gate electrode with the double conductive layer structure connected to the gate line, a source electrode connected to the data line, a drain electrode connected to the pixel electrode, and a polysilicon active layer forming a channel between the source electrode and the drain electrode, wherein the double conductive layer is formed to have an edge of the lower conductive layer substantially aligned with an edge of an upper conductive layer or where the lower edge is located outside the upper edge.

Abstract: A method of fabricating a liquid crystal display device according to an embodiment of the present invention includes forming first and second conductive layers on a substrate, wherein the first layer is transparent; patterning the second conductive layer and the first conductive layer using the photo-resist pattern as a mask; etching at least one lateral part of the patterned second conductive layer using the photo-resist pattern as a mask; and removing the remaining photo-resist pattern.

Abstract: The present invention discloses a bearing assembly capable of assuring mechanical strength and reducing a friction coefficient and stress concentration, and a method for manufacturing the same. The present invention comprises a spherical journal and a hemispherical bearing that is made of a fiber reinforced composite and has a bearing surface for establishing a spherical pair with the spherical journal. The fiber reinforced composite can be constructed by arranging a uni-directional prepreg, woven fiber prepregs and staple-fiber prepregs in a variety of configurations, and thermoplastic resin particles or self-lubrication particles are uniformly provided on the bearing surface. It is possible to alleviate stress concentration generated on the bearing surface by forming a plurality of air channels capable of imparting directivity on an outer surface of the hemispherical bearing.

Abstract: The propeller shaft comprises a transmission shaft 10 consisting of a hollow metal tube 11 with excellent torque transmissibility and a composite material prepregs 12 having higher specific stiffness than a metal material and stacked to the inner surface of the metal tube, and metal yokes 40 mounted on both ends of the transmission shaft and assembled with other devices. The composite material prepregs is co-cure bonded while applying an axial compressive preload to the transmission shaft and creating a vacuum in a space between a vacuum bag inserted in the transmission shaft and the composite material prepregs of the transmission shaft. Teeth 43 or embossments 44, and adhesive-retaining grooves 45 are formed on inner surfaces of the metal yokes, so the transmission shaft is desirably compression-fitted into the metal yokes. Accordingly, the propeller shaft has advantages of securing improved impact, abrasion, and water resistance.

Abstract: An electro-luminescence display device includes: pixels provided between data lines and scan lines, each of the pixels including a light-emitting cell driven with a current; and a current controller for temporarily increasing the current for driving the light-emitting cells.

Abstract: A LCD is adapted to reduce the number of data lines and drive circuits. The LCD can be driven in a dot inversion manner, using a data driver employing column inversion. A gate driver sequentially supplies first and second gate signals to gate lines. First and second switching parts are located in an ith horizontal line and supply video signals from data lines to LC cells by the control of an ith gate line. Third switching parts supply video signals to the cells located in the horizontal line, and are connected to the same data line as the second switching part, and are controlled by the ith and an i?1th gate lines. Fourth switching parts supply video signals to the cells located in the horizontal line and are connected to the same data line as the first switching part, and are controlled by the ith and i?1th gate lines.

Abstract: Disclosed is a method and apparatus for producing a microchannel plate (MCP) using a corrugated mold, characterized in that each of corrugated substrates formed by the corrugated mold is coated with a secondary emitter and then layered, thereby easily producing a large area of the MCP and decreasing production costs of the MCP. The MCP producing method includes placing a first flat substrate on the corrugated mold, vacuum forming the first flat substrate so that both surfaces thereof are corrugated, coating a secondary emitter onto both surfaces of each of the first corrugated substrate and a second flat substrate, and alternately layering a plurality of the first corrugated substrates and a plurality of the second substrates each coated with the secondary emitter, to form microchannels.

Abstract: An electro-luminescence display device and a driving method thereof for assuring a high aperture ratio are disclosed. In the device, a plurality of pixel cells is arranged in a matrix type. A plurality of data electrodes applies video signals to the pixel cells. A plurality of gate lines are connected to the pixel cells positioned adjacently to each other at the upper/lower sides thereof in such a manner to cross the data electrodes.

Abstract: A robot arm has an impact absorption structure for absorbing impact energy caused by a collision to protect a person from injury and the robot arm from being damaged. The robot arm includes a plurality of rigid beams provided at both end portions thereof to define a frame of the robot arm, and side members made of an elastic material and provided between the plurality of rigid beams to define an appearance of the robot arm and absorb the impact energy. Each side member includes a sheet made of a plastic material, a foam or honeycomb structure, and a fiber reinforced composite material attached to the sheet.