Abstract: There are provided a dimming control apparatus, a lighting system driving apparatus, and a dimming control method, the dimming control apparatus including a voltage converting unit converting a dimming signal from a dimmer into dimming voltage, an analog-to-digital (A/D) converting unit converting the dimming voltage into a digital dimming value, a dimming setting unit determining whether or not the digital dimming value is included in a preset dimming value range, and when the digital dimming value is not included in the preset dimming value range, resetting the dimming value range so as to allow the digital dimming value to be included in the reset dimming value range, a memory unit storing a dimming control value corresponding to the digital dimming value, and a dimming control unit generating a dimming control signal based on the dimming control value corresponding to the digital dimming value from the A/D converting unit.

Abstract: A primary side regulation (PSR) type light emitting diode (LED) driving apparatus may be capable of precisely controlling output power. The LED driving apparatus may include: a power supplying unit converting an input power input to a primary side of the apparatus and supplying a driving power to the LED positioned on a secondary side of the apparatus; a secondary side feedback unit positioned on the secondary side and providing an output control signal based on a current flowing in the LED and a dimming signal; a dimmer positioned on the secondary side and providing the dimming signal; and a primary side feedback unit positioned on the primary side and transferring a feedback signal to the power supplying unit based on a detection signal obtained by indirectly detecting power induced in the secondary side and the output control signal.

Abstract: A heat exchange fin in a heat exchanger is disposed between two refrigerant pipes spaced apart from each other includes a guide protrusion including first inclined planes inclined upward along opposite sides of a center line of a refrigerant pipe row in a symmetric fashion and second inclined planes inclined downward from upper ends of the first inclined planes, and the first inclined planes and the second inclined planes are provided with louver members, thereby improving heat exchange efficiency.

Abstract: A heat exchanger including a plurality of horizontally arranged tubes, headers to support the tubes and to enable a refrigerant to flow in the tubes, and a corrugated fin horizontally disposed between the tubes, wherein the corrugated fins includes a vertical fin body, flat contact parts formed at an upper part and a lower part of the fin body, the flat contact parts being in surface contact with a top and a bottom of the tubes, and curved contact parts extending from opposite ends of the flat contact parts, the curved contact parts being in surface contact with the sides of the tubes, the fin body includes drainage guides formed outside the flat contact parts in a lateral direction, and each drainage guide includes protruding parts protruding more upward and downward than the flat contact parts.

Abstract: A distribution structure of a heat exchanger includes one inlet pipe connected to a header. The heat exchanger includes a first header having a first chamber and a second chamber, a second header having a third chamber and a fourth chamber, and a plurality of tubes arranged in a plurality of rows. An inlet pipe is connected to the first chamber and an outlet pipe is connected to the second chamber. A distributer distributes the refrigerant flowing into the first chamber to the tubes of the front row, the distributor includes a first separating baffle dividing the first chamber into a mixing chamber in which the refrigerant is mixed and a supplying chamber for supplying the refrigerant to the tubes, a distribution pipe communicating the mixing chamber with the supplying chamber, and a second separating baffle dividing the supplying chamber into a plurality of independent chambers.

Abstract: An endoscope apparatus is provided. An endoscope apparatus includes a slave device including a plurality of drive motors configured to adjust insertion and insertion direction of an insertion tube of an endoscope, and a plurality of load sensors provided on the plurality of drive motors; and a master device including displacement sensors configured to generate signals for driving the drive motors according to an operator manipulation, and resistive motors configured to operate based on loads detected by the load sensors. The drive motors produce drive forces according to the signals generated by the displacement sensors and the resistive motors produce resistive forces corresponding to the operator manipulation based on the loads detected by the load sensors.

Abstract: The present disclosure relates to an optical sheet for controlling the direction of light rays which is used for manufacturing backlight units of TFT-LCDs for computer monitors and televisions, and more specifically to an optical sheet which can uniformly diffuse light, improve brightness, and adjust viewing angle. There is provided an optical sheet for controlling the direction of light rays comprising a substrate film; a microlens group arranged on a first face of the substrate film; and a plurality of protuberances formed on a second face of the substrate film, wherein each protuberance comprises a reflective layer at the bottom thereof, and the plurality of protuberances comprise an aperture formed therebetween, and wherein a unit microlens of the microlens group has a first side and a second side with different radii of curvature from each other with respect to a light emission control part thereof.

Abstract: Provided is a method of manufacturing a capacitor of a display apparatus, the display apparatus being formed on a substrate and including a thin film transistor, which includes an active layer, a gate electrode, and source and drain electrodes, a display device connected to the thin film transistor, and the capacitor, the method including: forming an electrode layer on the substrate; forming a passivation layer on the electrode layer; patterning the passivation layer to form a first pattern including first branch patterns parallel to each other, and a second pattern including second branch patterns parallel to each other and interposed between the first branch patterns; and forming first and second electrodes by etching the electrode layer using the first and second patterns as masks.

Abstract: A rotation jig device may include both side housings that are disposed at both sides, a reverse gear that is disposed inside both side housings, a groove portion, front and rear side connection gears that are engaged with the reverse gear in both side housings, front and rear side pinion gears that are disposed at the front/rear side connection gear to be rotated, a rack gear that penetrates both side housings to be engaged with the front and rear side pinion gears, an advanced/retreat cylinder that is connected to each rack gear of both side housings to move each rack gear backward or forward, and a clamping portion that is disposed at the reverse gear and rotates with the reverse gear to clamp the workpiece.

Abstract: There are provided a dimming control apparatus, a lighting system driving apparatus, and a dimming control method, the dimming control apparatus including a voltage converting unit converting a dimming signal from a dimmer into dimming voltage, an analog-to-digital (A/D) converting unit converting the dimming voltage into a digital dimming value, a dimming setting unit determining whether or not the digital dimming value is included in a preset dimming value range, and when the digital dimming value is not included in the preset dimming value range, resetting the dimming value range so as to allow the digital dimming value to be included in the reset dimming value range, a memory unit storing a dimming control value corresponding to the digital dimming value, and a dimming control unit generating a dimming control signal based on the dimming control value corresponding to the digital dimming value from the A/D converting unit.

Abstract: There are provided a light driving apparatus capable of being commonly used in various types of dimmers, and a driving method therefor. The light driving apparatus includes: a driving unit supplying driving power to a light emitting device according to controlling to drive the light emitting device; and a general-purpose dimming controlling unit controlling dimming of the light emitting device by converting a range of a brightness control signal of an external dimmer into a first voltage range according to a preset ratio to control the supply of power from the driving unit.

Abstract: A rotation jig device may include both side housings that are disposed at both sides, a reverse gear that is disposed inside both side housings, a groove portion, front and rear side connection gears that are engaged with the reverse gear in both side housings, front and rear side pinion gears that are disposed at the front/rear side connection gear to be rotated, a rack gear that penetrates both side housings to be engaged with the front and rear side pinion gears, an advanced/retreat cylinder that is connected to each rack gear of both side housings to move each rack gear backward or forward, and a clamping portion that is disposed at the reverse gear and rotates with the reverse gear to clamp the workpiece.

Abstract: Exemplary embodiments of the present invention relate to a charging and discharging apparatus of a DC link capacitor in an electric power steering relay, in which the DC link capacitor turning-on the electric, power steering relay includes at least two switching elements charged or discharged by a collector current so as not to relay on an internal temperature, facilitates a circuit design, and meets an electronic control system which applies time constants in a lump using software, and a method thereof.

Abstract: A curved liquid crystal display device includes a liquid crystal display panel, a backlight unit, a bottom cover and a reinforcement frame. The liquid crystal display panel includes a thin film transistor substrate and a color filter substrate. The backlight unit applies light to the liquid crystal display panel. The bottom cover supports the backlight unit and has a flat shape. The reinforcement frame has a predetermined curvature and is attached to the bottom cover. The flat bottom cover is mounted on the reinforcement frame such that the flat bottom cover has the predetermined curvature of the reinforcement frame.

Abstract: A heat exchanger having an improved distribution structure in which one inlet pipe is connected to a header which is partitioned into a first sub-chamber in which a refrigerant flows through the inlet pipe and a second sub-chamber in which tubes communicate with each other, and a distribution pipe is installed at the header and causes the first sub-chamber and the second sub-chamber to communicate so that the refrigerant in the first sub-chamber can be distributed to the tubes. The distribution pipe can pass through and can be combined with a partitioning baffle that is combined with the header to partition a chamber of the header into the first sub-chamber and the second sub-chamber.

Abstract: Disclosed is a clinical diagnosis supporting method and system based on hierarchical fuzzy inference. The clinical diagnosis supporting method includes the steps of: (a) extracting check data of a plurality of check items for each of a plurality of patients from a respective check item database; (b) selecting a characteristic from the check data of each of the check items; (c) hierarchical fuzzy-inferring the check data from which the characteristic is selected, for each check item; (d) extracting a check opinion for each disease based on an output value of the fuzzy inference for each check item; and (e) making a synthetic clinical estimation based on the extracted check opinion.

Abstract: Disclosed are a planar small electrode sensor for skin impedance measurement and a system using the same. The sensor include: a semiconductor substrate; an insulating layer formed on the substrate; and at least one pair of electrodes which are symmetrically formed on the insulating layer with respect to a vertical central line of the insulating layer, where the at least one pair of electrodes includes a reference electrode and a measuring electrode.

Abstract: A significance parameter extraction method for differential diagnosis of abnormal diseases based on entropy rough approximation technology, including the steps of: (a) calculating clinical reference values from two different groups of clinical data extracted from a database storing a plurality of clinical data for each check item using an entropy maximization measure; (b) evaluating a clinical difference between the two different groups of clinical data and extracting candidate check items; (c) based on a reference value of a check item calculated from one of the groups of clinical data, converting attribute values of the check item into nominal attribute values; and (d) extracting significance parameters for differential diagnosis from the candidate check items extracted in the step (b).

Abstract: An oxide semiconductor thin film transistor includes a gate electrode on a substrate, the gate electrode having a first area, a gate insulation layer on the gate electrode, the gate insulation layer covering the gate electrode, an active layer on the gate insulation layer, the active layer having a second area that is smaller than the first area, a source electrode on the active layer, the source electrode contacting a source region of the active layer, a drain electrode on the active layer, the drain electrode contacting a drain region of the active layer, and a passivation layer covering the active layer, the source electrode, and the drain electrode.