Abstract: An ink-jet image forming apparatus. The ink-jet image forming apparatus includes a print head having a plurality of nozzles to eject ink, an ink tank to store the ink, an ink supply passage to supply the ink in the ink tank to the print head, an ink return passage to return the ink in the print head to the ink tank, a regulator mounted in the ink supply passage to regulate ink flow supplied to the print head, a shut-off valve mounted in the ink supply passage, between the ink tank and the regulator, to intercept ink flow supplied to the regulator, and an ink pump mounted in the ink return passage to forcedly flow the ink in the ink return passage. The ink pump is configured to be driven in forward and reverse directions so as to change an ink flow direction. Since the shut-off valve intercepts forcedly the ink flow in the ink supply passage, the ink in the ink tank is prevented from flowing abnormally to the print head and leaking from the print head.

Abstract: A light blocking member having variable transmittance, a display panel including the same, and a manufacturing method thereof. A light blocking member having a variable transmittance according to one exemplary embodiment includes a polymerizable compound, a binder, and a thermochromic material that exhibits a black color at a temperature below a threshold temperature and becomes transparent at a temperature above the threshold temperature.

Abstract: An optical module having a second connector unit mounted on the bottom of a first connector unit to reduce the size of the radiation member and the optical module. The optical module includes a first connector unit, a radiation member provided on a first side of the first connector unit to support the first connector unit and radiate heat, a second connector provided on the first connector unit to electrically connect the first connector unit to a PCB, and a fastening member provided on surfaces of the first and second connector units, which face each other, to fasten the first and second connectors to each other. The optical module is advantageous reduces the size of the radiation member and renders a more compact optical module.

Abstract: A power transmission device and an image forming apparatus having the same that is capable of reliably transmitting intermittent power to a driven component from a driving source. The power transmission device includes a shaft, a first intermittent gear to receive power from the driving source and to rotate on the shaft, a second intermittent gear arranged so as to move between a first position in which the second intermittent gear is connected to the first intermittent gear along an axial direction of the shaft and a second position in which the second intermittent gear is disconnected from the first intermittent gear, a sliding unit arranged so as to slide along the shaft and to move the second intermittent gear in the axial direction of the shaft, and a driving unit to drive the sliding unit.

Abstract: A light blocking member having variable transmittance, a display panel including the same, and a manufacturing method thereof. A light blocking member having a variable transmittance according to one exemplary embodiment includes a polymerizable compound, a binder, and a thermochromic material that exhibits a black color at a temperature below a threshold temperature and becomes transparent at a temperature above the threshold temperature.

Abstract: One or more embodiments of the present disclosure relate to a circuit board having a substrate and a plurality of differential signal lines formed on the substrate and transmitting differential signals. The differential signal lines include a first signal line and a second signal line. The first signal line and the second signal line extend along at least two paths that are parallel to each other. The paths of the first signal line and the second signal line switch at path change portions, and the path change portions of neighboring differential signal lines are positioned at different distances away from an edge of the circuit board along the length direction of the differential signal line.

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 motor includes a ring-shaped stator, and a rotor to be rotated via electromagnetic interaction with the stator. The stator includes core plates stacked one above another. Each core plate includes an arc-shaped body and a plurality of teeth connected to the body, on which a coil is wound. The body of the core plate includes at least one bending inducer incised in a circumferential direction of the body.

Abstract: A power supply apparatus includes a converter to convert AC power into DC power, an SMPS to convert the DC power into DC powers desired by loads, a capacitor to interconnect the converter and the SMPS, a PTC element connected to the converter, a first switch connected in parallel with the PTC element, and a second switch connected in series with the first switch. The method includes turning on the second switch to start charging of the capacitor, turning on the first switch to charge the capacitor to a target voltage level, and turning off both the first switch and second switch if a voltage across the capacitor rises over the target voltage level, to discharge the voltage across the capacitor so as to lower the voltage across the capacitor to the target voltage level or lower.

Abstract: In an embodiment, a test method is implemented to test an integrated circuit that includes at least one processor. The method may include programming a memory to which the integrated circuit is coupled during testing with one or more test programs. The integrated circuit may be booted, and the processor may execute the test programs from the memory. In one embodiment, the memory may also store a control program that may manage the execution of the tests. In an embodiment, the control program may also implement a protocol to communicate with the ATE to perform the testing. The protocol may be implemented over a set of general purpose input/output (I/O) pins, for example. Using the protocol and test vectors on the ATE, the tests may be selected and executed, and test results may be reported.

Abstract: An apparatus and a method for executing a mouse pointer function in a portable terminal equipped with a camera are disclosed. The method includes: capturing an external image signal by a camera module; sampling the external image signal and converting a sampled image signal into image data; mapping a group of pixels of the image data generated by the sampling to a group of pixels of an image sensor for each unit pixel on a one-to-one basis; detecting coordinate values of image data including a point light source in the group of the mapped pixels; determining if a point light source is actually included in the detected coordinate values of the image data; and displaying the detected coordinate values of the image data determined to include the point light source on a screen.

Abstract: A portable terminal with a detachable BLUETOOTH headset is provided. The terminal includes the BLUETOOTH headset installed detachably in the portable terminal, a receiver module and a microphone module installed in the BLUETOOTH headset and used for phone call, an electrical connection means for, when the BLUETOOTH headset is installed in the portable terminal, electrically connecting the BLUETOOTH headset with the portable terminal, and a controller for detecting an installation or non-installation of the BLUETOOTH headset and for performing a corresponding operation. When the BLUETOOTH headset is installed in the portable terminal, the receiver module of the BLUETOOTH headset is used as a receiver module for the portable terminal.

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 resonance device for a speaker is provided. The device includes a speaker unit and a resonance unit. The speaker unit outputs a sound corresponding to a signal. The resonance unit is fixed to the speaker unit to provide a space for allowing a sound to resonate. The resonance unit is flexible, and the space for allowing a sound to resonate is variable.

Abstract: A method for inputting text in a mobile terminal having a touch screen is provided. When detecting a touch-down, the mobile terminal displays a character of the touch-down point and nearby characters in an enlarged size and indicates the character of the touch-down point in the enlarged display. When a drag event occurs before a touch-up event, the mobile terminal determines the dragging distance and direction, changes the touch-down point to a new location according to the dragging distance and direction, and indicates another character at the new location. When a touch-up event occurs at the new location, the mobile terminal then inputs the other character indicated at the new location.

Abstract: A ZIGBEE® network system and a method for assigning an Internet Protocol (IP) address in a ZIGBEE® network system are provided. The ZIGBEE® network system includes a client device for joining a ZIGBEE® network and being assigned an IP address used for transmitting and receiving data; a server device for assigning the IP address to the client device; and a ZIGBEE® coordinator for forming the ZIGBEE® network, storing server profile information for each server device that has joined the formed ZIGBEE® network, receiving client profile information for the client device from the client device, and determining a server device that will assign an IP address to the client device, using the received client profile information.

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 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: 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 swing hinge device of a portable terminal that can move in a straight line or a curved direction when a folder rotates is provided. The portable terminal includes a body housing, a display unit, a folder rotating about first and second hinge axes on the body housing, and a connection member rotatively connecting the folder with the body housing. The swing hinge device includes a base member coupled to the connection member; a rotation member coupled to the folder; first and second guide pins; a first guide member coupled to the first guide pin, for guiding the straight movement of the first guide pin when the rotation member rotates about the second hinge axis; and a second guide member, coupled to the second guide pin, for guiding the curved movement of the second guide pin when the rotation member rotates about the second hinge axis.