Abstract: A liquid crystal display (“LCD”) includes forming only a ?/4 plate between a polarizer and a display panel and setting a direction of an absorption axis of the polarizer and a slow axis of the ?/4 plate, so that the LCD can have a smaller thickness and its fabrication cost can be reduced while having better or the same characteristics than an LCD using both ?/2 and ?/4 plates. In addition, in an ECB mode backlit LCD, transmittance, contrast ratio, and viewing angles can be enhanced by attaching both the ?/4 or ?/2 plate and allowing the absorption axis of the polarizer and the slow axis of the ?/4 and ?/2 plates to have predetermined angle relationships.

Abstract: An improved display substrate is provided to reduce surface defects on insulating layers of organic thin film transistors. Related methods of manufacture are also provided. In one example, a display substrate includes a base, a plurality of data lines, a plurality of gate lines, a pixel defined by the data lines and the gate lines, an organic thin film transistor, and a pixel electrode. The data lines are on the base and are oriented in a first direction. The gate lines are oriented in a second direction that crosses the first direction. The organic thin film transistor includes a source electrode electrically connected to one of the data lines, a gate electrode electrically connected to one of the gate lines, and an organic semiconductor layer. The pixel electrode is disposed in the pixel and electrically connected to the organic thin film transistor. The pixel electrode comprises a transparent oxynitride.

Abstract: A display substrate having a low-resistance metallic layer and a method of manufacturing the display substrate. The gate conductors are extended in a first direction. The source conductors are extended in a second direction crossing the first direction including a lower layer of molybdenum or a molybdenum alloy, and an upper layer of aluminum or an aluminum alloy. The pixel areas are defined by the gate conductors and the source conductors. A switching element is formed in each of the pixel areas and includes a gate electrode extended from the gate conductor and a source electrode extended from the source conductor. The pixel electrode includes a transparent conductive material, and is electrically connected to a drain electrode of the switching element.

Abstract: A disk clamp to affix a disk of a hard disk drive to a spindle motor. The disk clamp includes a coupling part coupled to an upper portion of the spindle motor with screws, a pressing part provided outside the coupling part to press the disk against the spindle motor, and an elastic deformation part provided between the coupling part and the pressing part and adapted to be flexed in an elastically restorable manner, when the screws are tightened, to impart a pressing force to the pressing part. A hard disk drive including the disk clamp is also provided.

Abstract: A transflective LCD having a transmissive area and a reflective area according to an exemplary embodiment of the present invention includes a first substrate, a plurality of pixel electrodes formed on the first substrate and including a plurality of reflective electrodes having protrusion patterns and depression patterns, a second substrate facing the first substrate, a plurality of color filters formed on the second substrate and having a light hole in the reflective area, and a common electrode formed on the color filters. The size of the protrusion patterns in a first reflective area having the light hole is different from that in a second reflective area having no light hole, and the size of the protrusion patterns at the center of the first reflective area may be larger than that in the second reflective area.

Abstract: A color filter substrate includes a base substrate, a first common electrode layer, a second common electrode layer, and a color filter layer. The base substrate includes a plurality of pixel parts. The first common electrode layer is on the base substrate and receives a first voltage. The second common electrode layer faces the first common electrode and receives a second voltage. The color filter layer is interposed between the first and second common electrode layers, and includes a plurality of electrochromic patterns corresponding to the pixel parts, respectively. A color purity of the color filter layer is changed based on the first and second voltages. The color filter layer displays an image of high color purity in a first mode transmitting a first light, and displays an image of low color purity in a second mode transmitting a second light. Therefore, a color reproducibility is improved.

Abstract: A conductive structure containing copper is capable of being etched to have a reliable profile where the copper layer is free of corrosion or oxidation includes a barrier layer formed on an insulating or semiconductor substrate followed by a copper layer, a blocking layer and a capping layer. The copper layer includes copper or copper alloy. The barrier layer includes molybdenum (Mo), molybdenum nitride (MoN) or molybdenum alloy which includes at least one of MoW, MoTi, MoNb or MoZr. The blocking layer includes copper nitride, copper oxide or copper oxinitride. The capping layer includes molybdenum, molybdenum nitride (MoN) or molybdenum alloy which includes at least one of MoW, MoTi, MoNb and MoZr.

Abstract: An image forming apparatus includes a bubble removing apparatus to remove bubbles from a channel and a chip of a printhead by applying a pressure to an ink circulation line using a pumping unit. The pumping unit includes a housing, a vibration unit to generate pressure variations to move ink from the intake to the outlet including a circulation cam to circulate ink contained in the channel of the printhead along the ink circulation line and a purging cam to vibrate the vibration unit to discharge the ink contained in the chip of the printhead through a nozzle, and a clutch unit to transmit power from the motor to the circulation cam or the purging cam in a selective manner.

Abstract: A thin film transistor array panel includes a pixel electrode formed on a substrate, a gate line formed on the pixel electrode, a gate insulating film formed on the gate line, a semiconductor formed on the gate insulating film, a data line and a drain electrode formed on the gate insulating film, and a passivation layer formed on portions of the data line and the drain electrode. The gate line includes a first film formed on the same layer and with the same material as the pixel electrode and a second film formed on the first film.

Abstract: A hybrid image forming includes a first printing unit detachably mountable in the hybrid image forming apparatus and having a first printhead to print an image while performing a reciprocating motion in a width direction of a printing medium, and a second printing unit detachably mountable in the hybrid image forming apparatus and having a length at least as long as the width of the printing medium, and a mounting part to which each of the first printing unit and the second printing unit is detachably mountable.

Abstract: An image forming apparatus and a paper feeding method used with the image forming apparatus. An image forming apparatus includes: a paper feeding unit to accommodate a plurality of papers loaded thereon; a pick-up roller which picks up the papers loaded in the paper feeding unit and is set to rotate at multi-step speeds; a paper arrangement unit which aligns the papers to be transferred without skewing by applying a constant pressure to the front end of a paper transferred by a the pick-up roller; a printing unit which is disposed below the paper arrangement unit and forms a predetermined image on the transferred paper; a paper type sensing element which is disposed on a paper transfer path along which the paper feeding unit, the pick-up roller, the paper arrangement unit, and the printing unit are arranged; and a control unit which operates the pick-up roller at a rotation speed according to an identified paper type.

Abstract: An ink jet image forming apparatus includes a print head which has a same width as a sheet of paper and includes a nozzle portion having a plurality of nozzles, a wiping unit which removes foreign materials from the nozzle portion, and a collection portion which stores the foreign materials removed by the wiping unit using a suction force caused by a negative pressure.

Abstract: An inkjet image forming apparatus includes a cap member, a wiper, a nozzle unit, and a platen. The cap member and the wiper face the nozzle unit and are located at a position lower than an upper surface of the platen that constitutes a paper delivery path. The platen is moveable to a printing position constituting a paper delivery path and a maintenance position that leaves the printing position such that the wiper and the cap member can access the nozzle unit.

Abstract: An image forming apparatus includes an inkjet head having a length corresponding to a width of a printing medium and a nozzle unit formed with a plurality of nozzles, a platen installed under the inkjet head to support the printing medium, a wiping roller to wipe the nozzle unit, and a carriage unit to cause the wiping roller to make contact with the nozzle unit to absorb ink while the carriage unit rotates the platen and the carriage unit places the wiping roller wiping the nozzle unit apart from the nozzle unit while the carriage unit returns the platen to an original position.

Abstract: An OCB (Optically Compensated Bend) liquid crystal display in which impulse driving is performed such that an impulse data voltage is applied between normal data voltages used for displaying an image. The impulse data voltage is divided into a first impulse data voltage and a second impulse data voltage having a voltage value that will not break a bent alignment of the OCB liquid crystals. Referring to the application of the first impulse data voltage between the normal data voltages as first impulse driving and the application of the second impulse data voltage between the normal data voltages as second impulse driving, the second impulse driving is performed at every two or more of the first impulse drivings, so as to not break the bent alignment of the liquid crystals and to thereby improve luminance of the LCD.

Abstract: An inkjet printer includes a resistance element with which a front end of the paper becomes in contact so that a paper on a top of the stack of papers is separated from the stack of papers and picked up from a cassette, an angle conversion unit which changes an inclination angle of the resistance element with respect to the front end of the paper, and a switching gear which is moved by a carriage to a first position to feed the paper and to a second position to drive the angle conversion unit.

Abstract: An LCD array substrate for a transflective-type LCD includes an E-field reflecting section formed under a transmitting window that reflects light when an electric field is applied. A gate line, a gate electrode and a transparent electrode are formed on a substrate. A channel layer between source and drain electrodes and an E-field reflecting layer are formed on the gate electrode and the transparent electrode, respectively. Portions of a protecting layer are removed to form a contact hole disposed over the drain electrode, and a light-transmitting hole over the E-field reflecting layer. A pixel electrode that is electrically connected to the drain electrode through the contact hole, makes contact with the E-field reflecting layer through the light-transmitting hole.

Abstract: A scanner includes a document feed plate on which one or more documents to be read are stacked, an image sensor disposed adjacent to the document feed plate to read a lower surface of the one or more documents, a plurality of document output rollers arranged vertically adjacent to each other to change a direction along which the read one or more documents proceed along a reverse C-shaped path and to output the read one or more documents through a document outlet, and a document output plate located above the document feed plate on which the output one or more documents are stacked. The plurality of document output rollers rotate in the same direction, and each of the document output rollers has a shaft that is a rotational center and a plurality of roller bodies arranged to be separated from one another along a lengthwise direction of the shaft.

Abstract: The present invention relates to a multi-function device comprising a printer, a scanner coupled to the printer to move between an opened and closed position with respect to the printer, and a scanner cover for the scanner. An unlocking part is located on the printer. The scanner has a stopper accommodator that vertically penetrates the scanner at a position that corresponds to the unlocking part. A locking part is located on the scanner cover at a position that corresponds to the position of the stopper accommodator. A stopper is movably accommodated in the stopper accommodator and has a first end and a second end. The first end of the stopper contacts the unlocking part and the second end contacts the locking part.

Abstract: A paper feeding cassette and an image forming apparatus with the same are provided. The paper feeding cassette includes a stacking portion for stacking sheets of paper thereon, an inclined wall upwardly slanted relative to the stacking portion, a double-feed preventing unit provided on the inclined wall for separating and conveying the sheet conveyed along the inclined wall, and a coil spring installed in the double-feed preventing unit and applying frictional resistance to one side of the sheet to be conveyed. The paper feeding cassette can effectively prevent double-feed of sheets of paper by changing the shape or arrangement of the coil spring. The coil spring is not worn by the repeated printing. In addition, the paper feeding cassette can be easily manufactured by using the coil spring, and manufacturing costs can be reduced.