Abstract: A gamma voltage generator includes a reference gamma selector configured to receive a first reference voltage and a second reference voltage greater than the first reference voltage, and to select top and bottom reference gamma voltages respectively corresponding to maximum and minimum gamma tab voltages that are between the first and second reference voltages, a gamma tab generator configured to select a plurality of gamma tab voltages between the maximum and minimum gamma tab voltages based on the top and bottom reference gamma voltages, a maximum gamma compensator configured to select a compensating gamma tab voltage that is greater than the maximum gamma tab voltage based on the top reference gamma voltage and a third reference voltage greater than the second reference voltage, and a gamma output configured to divide the gamma tab voltages and the compensating gamma tab voltage, and output gamma voltages corresponding to a gamma curve.

Abstract: A system for artificially interlocking an automatic transmission includes an engine RPM sensor and a vehicle speed sensor. A pair of ultrasonic sensors measure a relative velocity of a vehicle to a neighbor vehicle, and an angle measuring sensor measures a degree of an angle variation of a steering wheel. An ECU determines whether an accelerator pedal is erroneously operated by monitoring sensing signals of the engine RPM sensor and the vehicle speed sensor, to determine whether the accelerator pedal is erroneously operated by using sensing signals of the ultrasonic sensors, and to determine whether the accelerator pedal is erroneously operated by monitoring a signal of the angle measuring sensor. A transmission control unit (TCU) performs an artificial interlock control of the automatic transmission when a determination signal, which informs that the accelerator pedal is erroneously operated, is received from the ECU.

Abstract: A system for artificially interlocking an automatic transmission includes an engine RPM sensor and a vehicle speed sensor. A pair of ultrasonic sensors measure a relative velocity of a vehicle to a neighbor vehicle, and an angle measuring sensor measures a degree of an angle variation of a steering wheel. An ECU determines whether an accelerator pedal is erroneously operated by monitoring sensing signals of the engine RPM sensor and the vehicle speed sensor, to determine whether the accelerator pedal is erroneously operated by using sensing signals of the ultrasonic sensors, and to determine whether the accelerator pedal is erroneously operated by monitoring a signal of the angle measuring sensor. A transmission control unit (TCU) performs an artificial interlock control of the automatic transmission when a determination signal, which informs that the accelerator pedal is erroneously operated, is received from the ECU.

Abstract: A method for controlling a display panel includes calculating an on-pixel ratio based on gamma information corresponding to image information, providing maximum current information based on a dimming level, calculating an average current of the display panel based on the on-pixel ratio and the maximum current information, and providing pixel average current information for each of a plurality of pixels in the display panel. The on-pixel ratio is based on the turned-on pixels of the pixels in the display panel. The pixel average current information is determined based on the average current of the display panel.

Abstract: An organic light-emitting display device, including a display unit including a plurality of pixels each having an organic light-emitting diode (OLED), a controller configured to accumulate image data of each frame and to generate compensated image data using a degradation compensation method determined, based on the accumulated image data, to compensate for the degradation of the OLED of each of the pixels, and a data driver configured to generate a data voltage according to the compensated image data and to provide the data voltage to the pixels.

Abstract: An organic light emitting display device includes: a display panel including a plurality of sub-pixels, each of the sub-pixels including an organic light emitting device to be light-emitted by a data current based on a data voltage; a memory to store accumulated data to be displayed on each of the sub-pixels; a deterioration compensator including: a compensation scheme determiner; a compensation amount calculator; and a modulation data generation generator; a timing controller to arrange the modulation data of each of the sub-pixels as pixel data according to a pixel arrangement structure of the display panel; and a data driver to convert the pixel data into the data voltage.

Abstract: A urea solution quality determining system may include a urea tank in which a urea solution is filled through a charging hole, a test chamber positioned below the charging hole for holding a portion of the urea solution, a main line connected to the urea tank at a lower part of the urea tank below the test chamber, a test line connected to the test chamber, a pumping line to which the main line and the test line are joined, a pump in the pumping line to pump the urea solution from the test chamber or from the urea tank, a control valve for selectively connecting the main line or the test line to the pumping line, and an injector at an end of the pumping line to inject the urea solution into an exhaust line through which an exhaust gas flows. A method is also described.

Abstract: An organic light-emitting diode (OLED) display and method for driving the same are disclosed. In one aspect, the OLED display includes a plurality of pixels and a compensation unit configured to receive first image data including a gray scale value for each pixel. The compensation unit accumulates the first image data to generate accumulated data, selects a data compensation method for each pixel based at least in part on the accumulated data, and compensates the gray scale value included in the first image data for each pixel based at least in part on the selected data compensation method to generate second image data. The OLED display also includes a data driver configured to convert the second image data into data signals and apply the data signals to the pixels.

Abstract: A urea solution quality determining system may include a urea tank in which a urea solution is filled through a charging hole, a test chamber positioned below the charging hole for holding a portion of the urea solution, a main line connected to the urea tank at a lower part of the urea tank below the test chamber, a test line connected to the test chamber, a pumping line to which the main line and the test line are joined, a pump in the pumping line to pump the urea solution from the test chamber or from the urea tank, a control valve for selectively connecting the main line or the test line to the pumping line, and an injector at an end of the pumping line to inject the urea solution into an exhaust line through which an exhaust gas flows. A method is also described.

Abstract: A urea solution quality determining system may include a urea tank in which a urea solution is filled through a charging hole, a test chamber positioned below the charging hole for holding a portion of the urea solution, a main line connected to the urea tank at a lower part of the urea tank below the test chamber, a test line connected to the test chamber, a pumping line to which the main line and the test line are joined, a pump in the pumping line to pump the urea solution from the test chamber or from the urea tank, a control valve for selectively connecting the main line or the test line to the pumping line, and an injector at an end of the pumping line to inject the urea solution into an exhaust line through which an exhaust gas flows. A method is also described.

Abstract: A urea solution quality determining system may include a urea tank in which a urea solution is filled through a charging hole, a test chamber positioned below the charging hole for holding a portion of the urea solution, a main line connected to the urea tank at a lower part of the urea tank below the test chamber, a test line connected to the test chamber, a pumping line to which the main line and the test line are joined, a pump in the pumping line to pump the urea solution from the test chamber or from the urea tank, a control valve for selectively connecting the main line or the test line to the pumping line, and an injector at an end of the pumping line to inject the urea solution into an exhaust line through which an exhaust gas flows. A method is also described.

Abstract: The present invention provides a system which can automatically switch passages of a fuel supply line and a fuel return line when the pressure in a fuel return line becomes higher than a predetermined pressure. Even when the fuel supply and return lines are incorrectly connected, the present system can prevent the problem of damage to a fuel supply system and fuel leakage which may be caused by an increased fuel pressure.

Abstract: The present invention provides systems which can automatically switch passages of a fuel supply line and a fuel return line when the pressure in a fuel return line becomes higher than a predetermined pressure. Even when the fuel supply and return lines are incorrectly connected, the present systems can prevent the problem of damages to a fuel supply system and fuel leakage which may be caused by an increased fuel pressure.