Abstract: A touch controller includes a touch data generator that is connected to a plurality of sensing lines, the touch data generator sensing a change in capacitance of a sensing unit connected to each of the sensing lines and generating touch data by processing the sensing signal corresponding to the result of sensing; and a signal processor that controls a timing of generating the touch data by receiving at least one piece of timing information for driving a display panel from a timing controller, and then providing either the timing information or a signal generated from the timing information as a control signal to the touch data generator.

Abstract: A method of detecting multi-touch in a touch panel a plurality of panel points for sensing respective input touch levels is provided. The method includes determining touch levels by adaptively removing noise touch levels among the input touch levels based on a distribution of the input touch levels, and determining a touch point among the panel points having the valid touch levels by performing near-touch separation based on a two-dimensional pattern of the valid touch levels.

Abstract: Disclosed is a display driving device, a display device including the same, and an image data compression and decompression method. The display driving device comprises an encoder that compresses PenTile® matrix encoded input image data using a binary encoding scheme and a DPCM encoding scheme, calculates errors produced by each encoding scheme, and selects an encoding scheme mode and its compressed data according to the calculated errors. A decoder decompresses the compressed data according to a decoding scheme corresponding to the selected encoding scheme mode. And a source driver drives source lines connected with a display panel based on decompressed data.

Abstract: A method of adjusting value includes calculating a value of saturation from an input image signal, and adjusting a value of value of the input image signal according to a calculated saturation value. In the method, the value of value of the input image signal is adjusted by using a value adjustment algorithm for determining a value adjustment rate that decreases the value according to the saturation value.

Abstract: A contrast control apparatus includes a memory for storing input image signals within one frame and an image reducing unit for selecting at least one image signal of the input image signals. An accumulation value calculating unit calculates accumulation values for predetermined sampling gray values with respect to the selected image signal. An image characteristic decision unit determines at least one characteristic of the selected image based on the accumulation values. A contrast control function calculating unit calculates a contrast control function based on the characteristic of the selected image. A contrast controller controls contrast of the image signals stored in the memory according to the contrast control function.

Abstract: A method of changing a pixel color includes determining whether a chrominance of a pixel is in a preference chrominance area, where the preference chrominance area is defined as a conic section in a two-dimensional chrominance plane and an eccentricity of the conic section is not greater than 1, and changing the chrominance of the pixel to a preference chrominance to generate a preference pixel when the chrominance of the pixel is in the preference chrominance area. Therefore, the method may set a preference chrominance area in a simple manner, and hardware for setting the preference chrominance area may be easily implemented.

Abstract: A touch controller includes a touch data generator that is connected to a plurality of sensing lines, the touch data generator sensing a change in capacitance of a sensing unit connected to each of the sensing lines and generating touch data by processing the sensing signal corresponding to the result of sensing; and a signal processor that controls a timing of generating the touch data by receiving at least one piece of timing information for driving a display panel from a timing controller, and then providing either the timing information or a signal generated from the timing information as a control signal to the touch data generator.

Abstract: An image processing device is provided. The image processing device includes a calculator and a controller. The calculator performs a block matching algorithm based on a difference between first image data of a macroblock and second image data of each of a plurality of blocks in a search range. The controller generates a motion vector used for motion compensation based on a result of the block matching algorithm and alternately changes a scan direction of the second image data at an interval of one horizontal period in a frame. The image processing device shares the second image data, which is repeatedly used during the block matching algorithm, in a horizontal direction.

Abstract: Provided are frame interpolation apparatus and methods in which motion estimation is performed by separation into a static object and a moving object. The frame interpolation apparatus interpolates multiple frames including an nth frame and an (n?1)th frame located adjacent the nth frame in order to generate an interpolation frame. Some embodiments of the apparatus include a static object separation unit, a motion vector (MV) estimation unit, and an interpolation frame generation unit. The static object separation unit may compare a macroblock (MB) of the nth frame with an MB of the (n?1)th frame, which may correspond to the MB of the nth frame, in order to separate each MB of the nth frame into a static object and a moving object. The MV estimation unit may search in the (n?1)th frame for an MB that matches with each of MBs of the nth frame, which may be determined to be the moving object, to estimate an MV.

Abstract: A contrast control apparatus includes a memory for storing input image signals within one frame and an image reducing unit for selecting at least one image signal of the input image signals. An accumulation value calculating unit calculates accumulation values for predetermined sampling gray values with respect to the selected image signal. An image characteristic decision unit determines at least one characteristic of the selected image based on the accumulation values. A contrast control function calculating unit calculates a contrast control function based on the characteristic of the selected image. A contrast controller controls contrast of the image signals stored in the memory according to the contrast control function.

Abstract: A method of changing a pixel color includes determining whether a chrominance of a pixel is in a preference chrominance area, where the preference chrominance area is defined as a conic section in a two-dimensional chrominance plane and an eccentricity of the conic section is not greater than 1, and changing the chrominance of the pixel to a preference chrominance to generate a preference pixel when the chrominance of the pixel is in the to preference chrominance area. Therefore, the method may set a preference chrominance area in a simple manner, and hardware for setting the preference chrominance area may be easily implemented.