Abstract: A display device includes a display unit including a plurality of pixels, and a signal controller for generating a compensation image data signal for offsetting a difference of a deterioration degree of a pixel from among the plurality of pixels, based on a data accumulation value of an input video signal of the pixel for displaying a normal image to the display unit, wherein the signal controller is configured to generate the compensation image data signal for offsetting a difference between a maximum data accumulation value of a maximum light emitting pixel from among the plurality of pixels and each data accumulation value of remaining pixels from among the plurality of pixels.

Abstract: Methods for reducing or even eliminating dislocations in Czochralski-grown silicon ingots are disclosed. Generally, the methods involve controlling the growth conditions of the neck prior to formation of the ingot body.

Abstract: A method of driving an organic light emitting display in which a frame is divided into a plurality of sub frames, includes: storing a plurality of bit change values corresponding to emission times in a plurality of lookup tables; selecting one of the lookup tables from among the plurality of lookup tables; measuring and storing emission times of pixels included in the organic light emitting display; extracting one of the bit change values from the selected lookup table corresponding to the emission time of one of the pixels when first data to be supplied to the one of the pixels is input; and changing a bit value of the first data to generate second data to be supplied to the one of the pixels utilizing the extracted bit change value.

Abstract: A display device includes: a display unit including a plurality of pixels connected to a plurality of scan lines and a plurality of data lines and emitting light according to corresponding image data; a dummy pixel connected to a dummy scan line and a dummy data line; and a compensation image data generator calculating a compensation amount according to an accumulation light emitting time of the first organic light emitting element to detect the compensation amount corresponding to each accumulation light emitting time of a plurality of second organic light emitting elements of the plurality of pixels by using a decreasing amount of luminance corresponding a resistance of a first organic light emitting element according to an accumulation light emitting time of the first organic light emitting element of the dummy pixel, and compensating the corresponding image data according to the detected compensation amount.

Abstract: A method of driving an organic light emitting display device including a plurality of pixels during a frame including subframes includes: representing gray levels by utilizing some of the subframes of the frame prior to degradation of an organic light emitting diode of each of the plurality of pixels; and compensating for the degradation of the organic light emitting diodes by changing the utilized subframes to increase a portion of the frame utilized by the plurality of pixels to represent the gray levels.

Abstract: An organic light emitting display is disclosed. The display comprises: a scan driver for sequentially supplying a scan signal to scan lines during scan periods of a plurality of sub-frames included in a frame; a data driver for supplying a data signal to data lines when the scan signal is supplied; pixels disposed at a display region of a panel to be coupled to the scan lines and the data lines, and receiving a first power source voltage and a second power source voltage; at least one dummy organic light emitting diode disposed at a non-display region of the panel; and a power source block for supplying an electric current to the dummy organic light emitting diode and for generating the first power source voltage based on a voltage of the dummy organic light emitting diode corresponding to the electric current.

Abstract: A color-changing adsorption fabric is provided to identify an adsorption state of a type of chemical, e.g., acid, alkali or organic matter, the color change being generated through a chemical reaction between chemical solution and pH-indicator material after wiping the chemical solution with the fabric. An adsorption fabric used in wiping the chemical solution may include a material, whose color changes when contacting an acid, alkali or organic matter, thereby identifying a type of chemical solution and thus preventing or reducing a fire occurrence. The color change of the adsorption fabric used in wiping a chemical solution may be identified with the naked eye so that separating and disposing the used-adsorption fabric corresponding to a type of chemical may be easier.

Abstract: A temperature control device comprising a heater, a plurality of heater temperature sensors, a heater temperature controller, and a power supply unit, and adapted to prevent overheating and fires caused by the overheating of a heater, is disclosed. The heater adapted to increase in temperature in response to receiving power, each heater temperature sensor is adapted to sense a temperature of the heater and generate a corresponding sensed heater temperature, and the heater temperature controller is adapted to generate an interlock control signal when at least one of the sensed heater temperatures respectively sensed by the plurality of temperature sensors exceeds a heater reference temperature. In addition, the power supply unit is adapted to stop supplying power to a power supply controller, thereby stopping power from being supplied to the heater, when the heater temperature controller provides the interlock control signal to the power supply unit.

Abstract: A temperature control device comprising a heater, a plurality of heater temperature sensors, a heater temperature controller, and a power supply unit, and adapted to prevent overheating and fires caused by the overheating of a heater, is disclosed. The heater adapted to increase in temperature in response to receiving power, each heater temperature sensor is adapted to sense a temperature of the heater and generate a corresponding sensed heater temperature, and the heater temperature controller is adapted to generate an interlock control signal when at least one of the sensed heater temperatures respectively sensed by the plurality of temperature sensors exceeds a heater reference temperature. In addition, the power supply unit is adapted to stop supplying power to a power supply controller, thereby stopping power from being supplied to the heater, when the heater temperature controller provides the interlock control signal to the power supply unit.