Patent application number | Description | Published |
20080309683 | DRIVING DEVICE, DISPLAY APPARATUS HAVING THE DRIVING DEVICE INSTALLED THEREIN AND METHOD OF DRIVING THE DISPLAY APPARATUS - A driving device including a signal controller which receives input image data corresponding to a plurality of frame periods, outputs the input image data during a first sub-frame period of one frame period among the plurality of frame periods, and outputs impulsive data having gray-scales, which are lower than those of the input image data, during a second sub-frame period of the one frame period. The impulsive data in the frame periods in which still images are displayed comprise first gray-scales, and the impulsive data in the frame periods in which moving images are displayed comprise second gray-scales, the second gray-scale being different from the first gray-scales. A data driver converts the input image data to pixel voltages during the first sub-frame period, and converts the impulsive data to impulsive voltages during the second sub-frame period. | 12-18-2008 |
20090295840 | IMAGE SIGNAL COMPENSATION APPARATUS AND LIQUID CRYSTAL DISPLAY INCLUDING THE SAME - Provided are an image signal compensation apparatus and a liquid crystal display (LCD) including the same. The image signal compensation apparatus includes a lookup table (LUT) and an image signal compensation unit. The LUT includes reference data that corresponds to each combination of first and second reference gray levels and is arranged in a matrix. The image signal compensation unit receives first and second image signals, receives reference data corresponding to the first and second image signals from the LUT, and compensates the second image signal using the reference data. The reference data includes diagonal reference data located on a diagonal line in the matrix, and at least one diagonal reference data from among the diagonal reference data has a different value from a corresponding combination of the first and second reference gray levels. | 12-03-2009 |
20090309903 | SIGNAL PROCESSING DEVICE FOR LIQUID CRYSTAL DISPLAY PANEL AND LIQUID CRYSTAL DISPLAY HAVING THE SAME - A liquid crystal display system including a signal processing device uses interpolation to generate an intermediate image frame using previous image frame data and present image frame data. The system converts data of the intermediate image frame into transposed image data that is to be used to drive a liquid crystal display panel and display a corresponding image. The transposed image data and the present image data are subjected to a prespecified DCC process (dynamic capacitance compensation process) to thereby generate respective first and second compensation image data. Since the first compensation image data is generated based on the transposed image data and the transposition is configured to prevent over-compensation by the DCC process, over-compensation by the dynamic capacitance compensation process can be reduced or prevented. | 12-17-2009 |
20100007639 | METHOD OF DRIVING A DISPLAY PANEL AND DISPLAY APPARATUS FOR PERFORMING THE METHOD - In a method of driving a display panel and a display apparatus for performing the method, a first pixel equipped in the display panel is driven with a first data voltage to which a first gamma curve is applied and a second pixel adjacent to the first pixel is driven with a second data voltage to which a second gamma curve is applied during an (N)-th frame, wherein N is a natural number. The first pixel and the second pixel is driven with a third data voltage to which a third gamma curve having a luminance between the first gamma curve and the second gamma curve is applied during a (N+1)-th frame. | 01-14-2010 |
20100033414 | LIQUID CRYSTAL DISPLAY AND METHOD OF CONTROLLING COMMON VOLTAGE THEREOF - A liquid crystal display includes a liquid crystal panel having a plurality of pixels, a lookup table which stores information about a plurality of digital common voltages, each of the plurality of digital common voltages corresponding to at least one gray value, a timing controller which analyzes gray characteristics of image signals to be displayed on the liquid crystal panel and which selects one of the digital common voltages based on an analysis result, and a common voltage generator which generates an analog common voltage in response to the digital common voltage selected by the timing controller and which supplies the analog common voltage to the liquid crystal panel. | 02-11-2010 |
20100033475 | LIQUID CRYSTAL DISPLAY AND CONTROL METHOD THEREOF - A method of controlling a liquid crystal display includes comparing a pixel data signal from a previous frame with a pixel data signal from a present frame to generate a comparison result, controlling a driving voltage based on the comparison result, generating gray scale voltages, and adjusting voltage differences between the gray scale voltages based on the driving voltage. The controlling the driving voltage includes changing the driving voltage when the pixel data signal from the previous frame corresponds to a full-black gray scale level and the pixel data signal from the present frame corresponds to a full-white gray scale level. | 02-11-2010 |
20100033634 | DISPLAY DEVICE - A display device includes; an image signal processing unit which extracts a motion vector of an (n−1)-th frame by comparing two consecutive (n−2)-th and (n−1)-th frames of a first image signal, generates an interpolated frame using the motion vector of the (n−1)-th frame, and generates a second image signal including the interpolated frame, the interpolated frame being inserted between the (n−1)-th frame and the n-th frame, wherein n is a natural number, and a display panel which displays an image corresponding to the second image signal. | 02-11-2010 |
20100156949 | LIQUID CRYSTAL DISPLAY AND METHOD OF DRIVING THE SAME - A liquid crystal display includes a timing controller and a liquid crystal panel. The timing controller sequentially receives first through third primitive image signals and sequentially outputs first through third corrected image signals. The liquid crystal panel displays an image based on the first through third corrected image signals. The timing controller generates a first converted image signal having a first gray level based on the first primitive image signal and stores the first converted image signal. The second primitive image signal has a second gray level and the timing controller generates a second converted image signal having a third gray level higher than the second gray level when the second gray level is lower than the first gray level. The timing controller generates the third corrected image signal using the second converted image signal and the third primitive image signal. | 06-24-2010 |
20100156951 | METHOD FOR COMPENSATING DATA, DATA COMPENSATING APPARATUS FOR PERFORMING THE METHOD AND DISPLAY APPARATUS HAVING THE DATA COMPENSATING APPARATUS - A method for compensating data for a data compensating apparatus in a display apparatus includes converting image data of an n-th frame (where “n” is a natural number) into pre-compensation data of the n-th frame having a gray scale less than or equal to a gray scale of the image data of the n-th frame based on pre-compensation data of an (n− | 06-24-2010 |
20110057890 | DISPLAY DEVICE INCLUDING TOUCH PANEL DEVICE, AND COUPLING-NOISE ELIMINATING METHOD - A display device includes; a touch panel device including; a touch panel and a touch controller connected to the touch panel, the touch controller including; a sampling unit which samples a sensing output signal input thereto from the touch panel to generate a sampled signal, and an analog/digital converter which converts the sampled signal to generate contact information, and a display panel device including; a display panel, a gate driver which applies a gate signal to the display panel, and a data driver which applies a data voltage to the display panel, wherein the sampling unit samples a portion of the sensing output signal which does not include a coupling noise. | 03-10-2011 |
20110057950 | DATA PROCESSING DEVICE, DISPLAY SYSTEM INCLUDING THE SAME AND METHOD OF PROCESSING DATA - A data processing device includes a receiving module, a rendering module and a color compensation module. The rendering module receives image data from the receiving module and renders the image data into first, second, third and fourth sub-pixel data based on a layout of a first sub-pixel, a second sub-pixel, a third sub-pixel and a fourth sub-pixel and the color compensation module compensates for a color of the first, second and third sub-pixel data. The color compensation module converts the first, second and third sub-pixel data into first, second and third intermediate data, respectively, adds first, second and third delta values, which are determined based on the fourth sub-pixel data, to the first, second and third intermediate data, and thereby generates first, second and third compensation data. | 03-10-2011 |
20110090319 | Display Apparatus and Method of Driving the Same - In a display apparatus and a driving method thereof, a detector determines whether a timing controller is operated in a three-dimensional (3D) mode or a two-dimensional (2D) mode to output a first or second mode signal according to a result of the determination. A compensator compensates for a gamma value of a 3D image to be increased in response to a first mode signal when the 2D mode is converted to the 3D mode and decreases an increased gamma value to a gamma value for a 2D image in response to a second mode signal when the 3D mode is converted to the 2D mode. | 04-21-2011 |
20110115889 | METHOD OF DRIVING LIGHT SOURCE AND DISPLAY APPARATUS FOR PERFORMING THE METHOD - A method of driving a light source including a light source part includes determining whether an image signal is a two-dimensional mode image signal or a three-dimensional mode image signal to generate a mode signal, adjusting a level of a current to be applied to the light source part in response to the mode signal to generate an adjusted current, and driving the light source part using the adjusted current. | 05-19-2011 |
20110157332 | 3 DIMENSIONAL IMAGE DISPLAY DEVICE AND METHOD OF DRIVING THE SAME - A stereoscopic image display device includes; a display device into which left-eye image data and right-eye image data are alternately input, and a shutter member including a left-eye shutter and a right-eye shutter, wherein the left-eye shutter and the right-eye shutter are opened in at least one of at least a part of an input period for the left-eye image data and at least a part of an input period for the right-eye image data. | 06-30-2011 |
20120113169 | Method for Displaying Stereoscopic Image and Display Apparatus for Performing the Same - A method of displaying a stereoscopic image includes outputting a left-eye image to a first and a second display block of a display panel during an N-th frame. Light is provided to the first display block during a first period of the N-th frame and light is provided to the second display block during a second period of the N-th frame. A right-eye image is output to the first and second display blocks of the display panel during an M-th frame. Light is provided to the first display block during a first period of the M-th frame and light is provided light to the second display block during a second period of the M-th frame. | 05-10-2012 |
20120126720 | THREE-DIMENSIONAL IMAGE DISPLAY DEVICE - A three-dimensional image display device includes a luminance controller receiving a three-dimensional enable signal, a backlight data signal and at least one starting signal of a scan starting signal, a vertical blank starting signal and a backlight starting signal. The luminance controller outputs a backlight control signal and a backlight unit is operated based on the backlight control signal and is coupled to the luminance controller. The backlight data signal is based on a previous pulse of the starting signal and is applied from a first time when a current pulse of the starting signal starts to a second time when a next pulse of the starting signal starts. | 05-24-2012 |
20120147162 | METHOD OF DISPLAYING STEREOSCOPIC IMAGE AND DISPLAY APPARATUS FOR PERFORMING THE SAME - A method of displaying a stereoscopic image provides first light having a first wavelength and second light having a second wavelength different from the first wavelength to the a display panel according to left-eye and right-eye images displayed on the display panel. Color correcting data are generated by correcting at least one of left-eye color data corresponding to the left-eye image and right-eye color data corresponding to the right-eye image such that a first color coordinate according to the first light and a second color coordinate according to the second light coincide with each other with respect to the same color. The left-eye and right-eye images are displayed using light having wavelengths different from each other, so that a display quality of the stereoscopic image may be enhanced. | 06-14-2012 |
20120162172 | METHOD OF DRIVING DISPLAY PANEL AND DISPLAY APPARATUS PERFORMING THE METHOD - A method of driving a display panel determines whether an image mode of an image signal is a 2D flat image mode or a 3D stereoscopic image mode. A first reverse signal and a second reverse signal different from the first reverse signal are generated according to the image mode. The image signal is converted to a first polarity data voltage or a second polarity data voltage with respect to a reference voltage based on the first reverse signal or the second reverse signal, and the first polarity data voltage or the second polarity data voltage is outputted to a display panel. During the 3D stereoscopic image mode, polarities of data voltages are reversed at a period of a plurality of frames, so that display quality of the 3D stereoscopic image may be enhanced. | 06-28-2012 |
20120169719 | METHOD FOR COMPENSATING DATA, COMPENSATING APPARATUS FOR PERFORMING THE METHOD AND DISPLAY APPARATUS HAVING THE COMPENSATING APPARATUS - A method of compensating data includes: generating color correction data of primary image data using a plurality of three-dimensional look-up tables in response to the primary image data and a stereoscopic image mode signal, where stored color correction data in the three-dimensional look-up tables are mapped with reference data in the three-dimensional look-up tables in one-to-three correspondence, and a gradation range of the stored color correction data in the three-dimensional look-up tables is less than a gradation range of the primary image data; and converting the generated color correction data to compensated data based on the generated color correction data of the primary image data and the color correction data of the primary image data of a previous frame, wherein a gradation range of the compensated data is substantially identical to the gradation range of the primary image data. | 07-05-2012 |
20120249405 | SIGNAL PROCESSING DEVICE FOR LIQUID CRYSTAL DISPLAY PANEL AND LIQUID CRYSTAL DISPLAY INCLUDING THE SIGNAL PROCESSING DEVICE - A liquid crystal display system including a signal processing device uses interpolation to generate an intermediate image frame using previous image frame data and present image frame data. The system converts data of the intermediate image frame into transposed image data that is to be used to drive a liquid crystal display panel and display a corresponding image. The transposed image data and the present image data are subjected to a prespecified DCC process (dynamic capacitance compensation process) to thereby generate respective first and second compensation image data. Since the first compensation image data is generated based on the transposed image data and the transposition is configured to prevent over-compensation by the DCC process, over-compensation by the dynamic capacitance compensation process can be reduced or prevented. | 10-04-2012 |
20120249523 | METHOD OF DRIVING SHUTTER GLASSES AND DISPLAY SYSTEM FOR PERFORMING THE SAME - A method of driving shutter glasses of a display system includes generating a display panel driving signal which drives a display panel of the display system, where the display panel displays a left image and a right image, generating a second three-dimensional (“3D”) synchronizing signal based on a first 3D synchronizing signal and the display panel driving signal, generating a third 3D synchronizing signal by adjusting an intensity of the second 3D synchronizing signal, generating a shutter control signal, which controls a left shutter and a right shutter of the shutter glasses, based on the third 3D synchronizing signal, and outputting the shutter control signal to the shutter glasses. | 10-04-2012 |
20130155129 | SIGNAL PROCESSING DEVICE FOR LIQUID CRYSTAL DISPLAY PANEL AND LIQUID CRYSTAL DISPLAY INCLUDING THE SIGNAL PROCESSING DEVICE - A liquid crystal display system including a signal processing device uses interpolation to generate an intermediate image frame using previous image frame data and present image frame data. The system converts data of the intermediate image frame into transposed image data that is to be used to drive a liquid crystal display panel and display a corresponding image. The transposed image data and the present image data are subjected to a prespecified DCC process (dynamic capacitance compensation process) to thereby generate respective first and second compensation image data. Since the first compensation image data is generated based on the transposed image data and the transposition is configured to prevent over-compensation by the DCC process, over-compensation by the dynamic capacitance compensation process can be reduced or prevented. | 06-20-2013 |
20130285965 | DISPLAY DEVICE INCLUDING TOUCH PANEL DEVICE, AND COUPLING-NOISE ELIMINATING METHOD - A display device includes; a touch panel device including; a touch panel and a touch controller connected to the touch panel, the touch controller including; a sampling unit which samples a sensing output signal input thereto from the touch panel to generate a sampled signal, and an analog/digital converter which converts the sampled signal to generate contact information, and a display panel device including; a display panel, a gate driver which applies a gate signal to the display panel, and a data driver which applies a data voltage to the display panel, wherein the sampling unit samples a portion of the sensing output signal which does not include a coupling noise. | 10-31-2013 |
20140035941 | IMAGE SIGNAL COMPENSATION APPARATUS AND LIQUID CRYSTAL DISPLAY INCLUDING THE SAME - Provided are an image signal compensation apparatus and a liquid crystal display (LCD) including the same. The image signal compensation apparatus includes a lookup table (LUT) and an image signal compensation unit. The LUT includes reference data that corresponds to each combination of first and second reference gray levels and is arranged in a matrix. The image signal compensation unit receives first and second image signals, receives reference data corresponding to the first and second image signals from the LUT, and compensates the second image signal using the reference data. The reference data includes diagonal reference data located on a diagonal line in the matrix, and at least one diagonal reference data from among the diagonal reference data has a different value from a corresponding combination of the first and second reference gray levels. | 02-06-2014 |
20140139563 | LIQUID CRYSTAL DISPLAY AND METHOD OF DRIVING THE SAME - A liquid crystal display includes a timing controller and a liquid crystal panel. The timing controller sequentially receives first through third primitive image signals and sequentially outputs first through third corrected image signals. The liquid crystal panel displays an image based on the first through third corrected image signals. The timing controller generates a first converted image signal having a first gray level based on the first primitive image signal and stores the first converted image signal. The second primitive image signal has a second gray level and the timing controller generates a second converted image signal having a third gray level higher than the second gray level when the second gray level is lower than the first gray level. The timing controller generates the third corrected image signal using the second converted image signal and the third primitive image signal. | 05-22-2014 |