Abstract: An image data correcting device included in a display device includes a correction data memory and a correction calculator. The correction data memory stores sampling window select information indicating a sampling window selected from a plurality of sampling windows that are different from each other, and correction data obtained utilizing the selected sampling window with respect to the display device. The correction calculator receives image data, and corrects the image data based on the correction data for pixels at positions corresponding to the selected sampling window indicated by the sampling window select information.

Abstract: A display device includes a plurality of pixels, and a plurality of data lines connected to the plurality of pixels; a data driver for transmitting a data voltage to the data line; and a signal controller for receiving input image signals from the outside and outputting a digital image signal to the data driver. The signal controller includes an adjacent image signal compensator for comparing input gray data of the input image signals to be continuously input to the data line and generating adjacent image signal compensation data based on the comparison, and a pixel characteristic compensator for generating pixel characteristic compensation data according to a characteristic of a pixel to be displayed.

Abstract: A display device includes a plurality of pixels, and a plurality of data lines connected to the plurality of pixels; a data driver for transmitting a data voltage to the data line; and a signal controller for receiving input image signals from the outside and outputting a digital image signal to the data driver. The signal controller includes an adjacent image signal compensator for comparing input gray data of the input image signals to be continuously input to the data line and generating adjacent image signal compensation data based on the comparison, and a pixel characteristic compensator for generating pixel characteristic compensation data according to a characteristic of a pixel to be displayed.

Abstract: A display device includes a display panel including a first sub-pixel and a second sub-pixel, a gamma generator configured to change a dividing ratio of a high gamma curve and a low gamma curve applied to the high sub-pixel and the low sub-pixel based on a position of the first sub-pixel and to generate a high gamma data corresponding to the high gamma curve and a low gamma data corresponding to the low gamma curve, and a data driver configured to convert the high gamma data and the low gamma data to a high data voltage and a low data voltage.

Abstract: A display apparatus includes a local dimmer, an image compensator, a display panel and a light source. The local dimmer is configured to generate a dimming signal representing a degree of dimming for a light source block based on input image data. The image compensator is configured to determine a grayscale gain based on input grayscale value of the input image data and the dimming signal and to compensate luminance of the input image data based on the grayscale gain. The display panel is configured to display an image based on the compensated input image data. The light source is configured to provide light to the display panel based on the dimming signal.

Abstract: A display device includes: a first memory storing mura correcting data respectively corresponding to a plurality of reference pixels, each of the plurality of reference pixels comprising (n×m) pixels, the mura correcting data configured to correct mura of a reference pixel (‘n’ and ‘m’ are natural numbers being equal to or more than 2); a first correction controller configured to generate mura correcting data of a pixel using the mura correcting data of the reference pixel stored in the first memory; a second memory storing spot correcting data respectively corresponding to a plurality of spot-muras; a second correction controller configured to output the spot correcting data from the second memory based on a position data of the spot-mura; and an operation part configured to correct pixel data of the pixel using the mura correcting data and the spot correcting data of the pixel.

Abstract: A display device includes a display panel including a first sub-pixel and a second sub-pixel, a gamma generator configured to change a dividing ratio of a high gamma curve and a low gamma curve applied to the high sub-pixel and the low sub-pixel based on a position of the first sub-pixel and to generate a high gamma data corresponding to the high gamma curve and a low gamma data corresponding to the low gamma curve, and a data driver configured to convert the high gamma data and the low gamma data to a high data voltage and a low data voltage.

Abstract: A display apparatus includes a local dimmer, an image compensator, a display panel and a light source. The local dimmer is configured to generate a dimming signal representing a degree of dimming for a light source block based on input image data. The image compensator is configured to determine a grayscale gain based on input grayscale value of the input image data and the dimming signal and to compensate luminance of the input image data based on the grayscale gain. The display panel is configured to display an image based on the compensated input image data. The light source is configured to provide light to the display panel based on the dimming signal.

Abstract: An image data correcting device included in a display device includes a correction data memory and a correction calculator. The correction data memory stores sampling window select information indicating a sampling window selected from a plurality of sampling windows that are different from each other, and correction data obtained utilizing the selected sampling window with respect to the display device. The correction calculator receives image data, and corrects the image data based on the correction data for pixels at positions corresponding to the selected sampling window indicated by the sampling window select information.

Abstract: A display device includes: a first memory storing mura correcting data respectively corresponding to a plurality of reference pixels, each of the plurality of reference pixels comprising (n×m) pixels, the mura correcting data configured to correct mura of a reference pixel (‘n’ and ‘m’ are natural numbers being equal to or more than 2); a first correction controller configured to generate mura correcting data of a pixel using the mura correcting data of the reference pixel stored in the first memory; a second memory storing spot correcting data respectively corresponding to a plurality of spot-muras; a second correction controller configured to output the spot correcting data from the second memory based on a position data of the spot-mura; and an operation part configured to correct pixel data of the pixel using the mura correcting data and the spot correcting data of the pixel.

Abstract: A method of driving a display panel includes generating corrected grayscale data utilizing a grayscale correction value of a reference pixel including m×n pixels, “m” and “n” being natural numbers greater than zero, and driving M×N pixels of the display panel based on the corrected grayscale data, “M” and “N” being natural numbers greater than zero. “M” is greater than “m” and “N” is greater than “n.

Abstract: A spot correcting apparatus includes a first spot correcting part and a second spot correcting part. The first spot correcting part is configured to correct a first spot having a first size of a first correcting area unit of 2N*2N (N is a natural number) pixel area. The second spot correcting part is configured to correct a second spot having a second size different from the first size of a second correcting area unit of L*M (each of L and M is a natural number and at least one of L and M is different from 2N) pixel area. Thus, display quality of a display apparatus may be easily improved.

Abstract: A method of processing image data comprises storing image frame data in a first memory, repetitively reading the image frame data stored in the first memory to output high frequency image frame data and correcting the high frequency image frame data based on previous frame data.

Abstract: A liquid crystal display includes a pixel, a memory configured to store a plurality of look-up tables, an image signal modification unit configured to obtain a modified look-up table based on a first look-up table and a second look-up table among the plurality of look-up tables and modify an input image signal based on the modified look-up table to generate a modified image signal, and a data driver configured to convert the modified image signal generated by the image signal modification unit into a data voltage and to supply the data voltage to the pixel. The liquid crystal display includes a plurality of regions. The liquid crystal display is configured to maintain temperature information of the plurality of regions, and the image signal modification unit is configured to modify the input image signal based on the temperature information.

Abstract: A method of driving a display panel includes generating corrected grayscale data utilizing a grayscale correction value of a reference pixel including m×n pixels, “m” and “n” being natural numbers greater than zero, and driving M×N pixels of the display panel based on the corrected grayscale data, “M” and “N” being natural numbers greater than zero. “M” is greater than “m” and “N” is greater than “n.

Abstract: A method for correcting a defect pixel includes extracting a pixel value of a central pixel, and pixel values of each of a plurality of neighboring pixels around the central pixel in an image sensor by using a color filter; calculating reference levels by multiplying each the pixel value of the plurality of neighboring pixels by a weight value; calculating a total number of cases where the pixel value of the central pixel is larger or smaller than the reference level as a first comparison value or second comparison value, respectively; determining the central pixel is a defect pixel where the first or second comparison value is larger than a first or second control register value, by comparing the comparison values with the control register values, respectively; and correcting the central pixel determined as the defect pixel.

Abstract: An image processing method includes receiving an RGB data, converting the RGB data to an HSV data configured to include hue, saturation, and value compensating for the HSV data on a basis of a hue data of the HSV data, and converting the compensated HSV data to a compensated RGB data. The compensating of the HSV data includes reading out a compensation data corresponding to the hue data from a look-up table and compensating for the HSV data using the compensation data. The data are compensated on the basis of the hue in the HSV color space and the saturation and value are preserved, and thus the image, e.g., the memory color like the skin color, may be prevented from being distorted.

Abstract: A liquid crystal display includes a pixel, a memory configured to store a plurality of look-up tables, an image signal modification unit configured to obtain a modified look-up table based on a first look-up table and a second look-up table among the plurality of look-up tables and modify an input image signal based on the modified look-up table to generate a modified image signal, and a data driver configured to convert the modified image signal generated by the image signal modification unit into a data voltage and to supply the data voltage to the pixel. The liquid crystal display includes a plurality of regions. The liquid crystal display is configured to maintain temperature information of the plurality of regions, and the image signal modification unit is configured to modify the input image signal based on the temperature information.

Abstract: A method for correcting a defect pixel includes extracting a pixel value of a central pixel, and pixel values of each of a plurality of neighboring pixels around the central pixel in an image sensor by using a color filter; calculating reference levels by multiplying each the pixel value of the plurality of neighboring pixels by a weight value; calculating a total number of cases where the pixel value of the central pixel is larger or smaller than the reference level as a first comparison value or second comparison value, respectively; determining the central pixel is a defect pixel where the first or second comparison value is larger than a first or second control register value, by comparing the comparison values with the control register values, respectively; and correcting the central pixel determined as the defect pixel.

Abstract: Rather than using complex zigzag patterns or the like for counter-compensating for the different lengths of fanout lines used to transmit data line drive voltages from more concentrated source points of the drive voltages to more spread apart data lines of a given display panel, digital data signals that represent the to be output data line drive voltages are automatically adjusted so that the data line drive voltages output from the concentrated source points are pre-adjusted to counter voltage drop difference effects that will be applied to those pre-adjusted data line drive voltages by the difference of resistances among the fanout lines of different lengths.