Abstract: A display apparatus includes a gamma data generator comprising a spatial pattern having at least a high gamma and a low gamma corresponding to a plurality of sub-pixels arranged in a matrix array in a space division configuration, a temporal pattern having the high gamma and the low gamma corresponding to the plurality of sub-pixels in a time division configuration and a spatio-temporal pattern having the high gamma and the low gamma corresponding to the plurality of sub-pixels in both a space and time division configuration, and configured to generate gamma data of a sub-pixel using the spatial pattern, the temporal pattern and the spatio-temporal pattern in a cascade configuration.

Abstract: A tiled display device includes a first display device including a first display panel configured to sense a touch thereon and display an image signal, and a first controller configured to control the first display panel and transmit a reference signal wirelessly, and a second display device including a second display panel configured to sense a touch thereon and display the image signal, and a second controller configured to control the second display panel and transmit a first ACK signal to the first controller after receiving the reference signal, in which the first controller is configured to determine a first latency time of the second display device by using the reference signal and the first ACK signal and synchronize touch information of the first and second display devices according to the first latency time.

Abstract: A liquid crystal display includes: a liquid crystal panel comprising a plurality of pixel areas, each having a plurality of pixels; and a signal controller configured to receive an original image signal and to generate a target image signal corresponding to the original image signal by using a kickback voltage at each gray level in the original image signal, wherein the signal controller comprises a dithering unit configured to generate a corrected image signal based on dithering patterns corresponding to the target image signal.

Abstract: A method of image processing includes extracting first image information from an input image by analyzing the input image, determining, based on the first image information, whether to utilize a high dynamic range (HDR) function for the input image, setting an image output mode based on a result of the determination, setting a reference tone curve for the input image based on the image output mode, and generating an output image by converting the input image based on the reference tone curve.

Abstract: A display device includes a display panel displaying an image and having a first radius of curvature, a distance measuring unit measuring a user distance, the user distance being a distance between the display panel and a user, and a curvature radius changing unit receiving the measured user distance from the distance measuring unit, to change the first radius of curvature of the display panel to a second radius of curvature different from the first radius of curvature.

Abstract: A display apparatus includes a latch circuit configured to generate a second data value from a first data value, wherein the bit count of the second data value is greater than the bit count of the first data value, a digital-analog converter configured to convert the second data value into gray scale voltages, an output buffer unit configured to amplify the current level of the gray scale voltages to generate data voltages, a data switch circuit configured to invert the polarity of the data voltages every frame, and a display panel including a plurality of pixels driven with the data voltages supplied from the data switch circuit in response to sequential application of gate signals.

Abstract: An apparatus includes an overlay buffer configured to store overlay data; a touch path logic to: receive first touch events from the first touch sensor panel and generate a first output based on the first touch events, and receive second touch events from the second touch sensor panel and generate a second output based on the second touch events; and a rendering logic to, when the first touch events occur: receive a first video image; receive the first output; and combine the first video image with the overlay data corresponding to the first video image to output at least one combined display image, and, when the second touch events occur: receive a second video image; receive the second output; and combine the second video image with the overlay data corresponding to the second video image to output the at least one combined display image.

Abstract: A display apparatus includes a plurality of pixels arranged in rows and columns, each pixel column extends in a first direction and each pixel row extends in a second direction crossing the first direction, a first data line extending in the first direction and configured to transfer a data voltage to pixels included in at least two pixel columns, and for each pixel row, a first gate line extending in the second direction and disposed at a first side of the pixel row, and a second gate line extending in the second direction and disposed at a second side of the pixel row, the first and second sides of the pixel row are opposite to each other. In a pair of adjacent pixel columns, pixels, which are connected to the first gate line of their respective pixel row, are arranged in a zigzag arrangement in the first direction.

Abstract: Provided is a display apparatus. The display apparatus includes a plurality of gate lines, a plurality of data lines, and first to fourth pixels. The first to fourth pixels are disposed between two data lines adjacent to each other. The first and second pixels are disposed between an i-th gate line and an (i+1)-th gate line. The third and fourth pixels are disposed between a j-th gate line and a (j+1)-th gate line. The first to fourth pixels may have reference connection data lines different from each other or reference connection gate lines different from each other.

Abstract: A method of driving a transparent liquid crystal display apparatus includes a transparent display panel including a brightness sensor and a timing controller. The timing controller includes a YCbCr converter configured to convert input pixel data to YCbCr data, a histogram extractor configured to receive the YCbCr data and generate histogram information about the number of values corresponding to each of brightness data, a grayscale analysis unit configured to analyze the histogram information and determine a type of an input image, an image processer configured to process the YCbCr data according to the type of the input image and the ambient brightness information and generate an output YCbCr? data, and an RGB converter configured to convert the output YCbCr? data to output image data.

Abstract: A display apparatus includes a display panel including a first pixel, a common voltage generator and a timing controller. The common voltage generator generates a reference common voltage, and provides the reference common voltage to the first pixel. The timing controller determines a dithering scheme for the first pixel based on first common voltage information, and generates first output pixel data by applying a dithering function to first input pixel data based on the dithering scheme for the first pixel. The first common voltage information indicates whether the reference common voltage is substantially equal to an optimal common voltage of the first pixel. A first data voltage provided to the first pixel is generated based on the first output pixel data. A polarity of the first data voltage is reversed with respect to the reference common voltage for each predetermined duration.

Abstract: Gamma applied data generating circuit includes motion vector extractor, gamma pattern generator, first gamma applier, second gamma applier, and output converter. Motion vector extractor extracts motion vector of object. Gamma pattern generator generates first gamma pattern corresponding to first motion vector value and second gamma pattern corresponding to second motion vector value from first time point. Value of motion vector is changed from first motion vector value to second motion vector value at first time point. First and second gamma appliers generate first and second data by applying first and second gamma pattern to input data, respectively. Output converter outputs sum of first data times first weight and second data times second weight as gamma applied data. From first time point to second time point, output converter converts first weight from 1 to 0 and converts second weight from 0 to 1.

Abstract: An apparatus for detecting an afterimage candidate region includes: a comparison unit which compares gradation data of an n-th frame with integrated gradation data of an (n?1)-th frame and generates integrated gradation data of the n-th frame, where n is a natural number; a memory which provides the integrated gradation data of the (n?1)-th frame to the comparison unit and stores the integrated gradation data of the n-th frame; and an afterimage candidate region detection unit which detects an afterimage candidate region based on the integrated gradation data of the n-th frame, where each of the integrated gradation data of the n-th frame and the integrated gradation data of the (n?1)-th frame comprises a comparison region and a gradation region.

Abstract: A method of driving a display panel is proposed. The method includes determining whether an input image data represents a video image or a static image, determining whether an image transition occurs in the input image data when the input image data represents the static image, and inserting a plurality of image sticking compensation frames between normal frames in a low frequency driving when the image transition occurs in the input image data between the normal frames. The number of the image sticking compensation frame may be properly adjusted during a cycle of low frequency driving.

Abstract: A display apparatus includes: a display panel including a data line, a gate line crossing the data line, and a sub pixel connected to the data line and the gate line; a gamma data generator configured to output normal gamma data of a normal gamma curve corresponding to image data when a grayscale of the image data is inside a first grayscale range, and to output high gamma data of a high gamma curve or low gamma data of a low gamma curve based on a spatio-temporal pattern when the grayscale of the image data is outside the first grayscale range; and a data driver configured to convert the gamma data outputted from the gamma data generator to a data voltage and to output the data voltage to the data line.

Abstract: A display apparatus includes a gamma data generator comprising a spatial pattern having at least a high gamma and a low gamma corresponding to a plurality of sub-pixels arranged in a matrix array in a space division configuration, a temporal pattern having the high gamma and the low gamma corresponding to the plurality of sub-pixels in a time division configuration and a spatio-temporal pattern having the high gamma and the low gamma corresponding to the plurality of sub-pixels in both a space and time division configuration, and configured to generate gamma data of a sub-pixel using the spatial pattern, the temporal pattern and the spatio-temporal pattern in a cascade configuration.

Abstract: A timing controller for a display apparatus includes a polarity comparison part and a compensation part. The polarity comparison part compares a first polarity of a first data voltage with a second polarity of a second data voltage, the first data voltage corresponding to a first pixel in a first frame and generated based on a first gamma voltage, the second data voltage corresponding to the first pixel in a second frame and generated based on a second gamma voltage. The compensation part compensates the second data voltage based on a first look-up table, if the first polarity is the same as the second polarity, and compensates the second data voltage based on a second look-up table, if the first polarity is different from the second polarity.

Abstract: A display apparatus includes: a panel including a plurality of pixels configured to display an image; an ambient light sensor configured to sense an illumination level of ambient light and to generate ambient light data; a gamma controller configured to control sections of a reference gamma curve based on the ambient light data to generate a controlled gamma curve, the controlled gamma curve defining output data according to input data; a data driver configured to convert an image signal into a data voltage based on the controlled gamma curve and to supply the data voltage to the pixels; and a gate driver configured to supply a gate signal to the pixels.

Abstract: A display panel driving apparatus includes a data processing part. The data processing part calculates a first pretilt value of previous image data to output a first pretilt signal, calculates a second pretilt value of current image data to output a second pretilt signal, analyze a luminance distribution of unit pixels from image data to output luminance distribution analysis data, analyzes a color pixel to which a pretilt is applied based on the unit pixel from the image data to output color analysis data, outputs a determination signal indicating whether the pretilt is applied to the image data, according to the luminance distribution analysis data and the color analysis data, and outputs pretilt compensation image data according to the first pretilt signal, the second pretilt signal and the determination signal, as compensation image data.

Abstract: A display device includes a display panel including a plurality of sub-pixels, a grayscale conversion part configured to generate a data signal displaying different grayscales to the sub-pixels at a predetermined time interval, and a data driver configured to convert the data signal into a data voltage and to output the data voltage to the display panel.