Patent application number | Description | Published |
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 |
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 |
20110057959 | DISPLAY APPARATUS AND METHOD OF DRIVING THE SAME - A display apparatus includes a temperature sensor, a timing controller, a data driver and a display panel. The temperature sensor senses a temperature, the timing controller includes a dynamic capacitance capture (“DCC”) block, which converts a green data, a red data and a blue data into a green compensation data, a red compensation data and a blue compensation data, respectively, based on the temperature sensed by the temperature sensor, and the data driver converts the red compensation data, the green compensation data and the blue compensation data into a data voltage and outputs the data voltage. The display panel receives the data voltage and displays an image. | 03-10-2011 |
20110169856 | APPARATUS AND METHOD OF PROCESSING SIGNALS - A signal processing apparatus and a signal processing method are disclosed. The signal processing apparatus includes a correction block and a division correction block. The correction block receives grayscale data comprising achromatic color grayscale data or chromatic color grayscale data to create corrected grayscale data. The division correction block receives the corrected grayscale data to create first division grayscale data and second division grayscale data having a grayscale value less than or equal to a grayscale value of the first division grayscale data. The correction block includes a first correction block and a second correction block. The first correction block receives the grayscale data and includes a one-dimensional lookup table to create corrected create achromatic color grayscale data. The second correction block includes a three-dimensional lookup table and an interpolator. | 07-14-2011 |
20120194567 | LIQUID CRYSTAL DISPLAY, AND DEVICE AND METHOD FOR MODIFYING IMAGE SIGNAL - A liquid crystal display includes an image signal modifier for generating a modified signal based on a first image signal of a first frame, a second image signal of a second frame, and a lookup table. A data driver converts the modified signal into a data voltage which is supplied to a pixel of the display. The lookup table stores a plurality of reference modified signals for a plurality of reference first image signals and a plurality of reference second image signals. The lookup table includes a first lookup table having a gray gap of the reference first image signals and a gray gap of the reference second image signals of x, and a second lookup table having a gray gap of the reference first image signals and a gray gap of the reference second image signals of y, where y is greater than x. | 08-02-2012 |
20120257827 | METHOD OF PROCESSING DATA AND DISPLAY APPARATUS FOR PERFORMING THE METHOD - A method of processing data includes correcting received color data and generating corrected color data, generating color glitch correction data corresponding to the corrected color data using a glitch correction value preset based on the received color data, and converting the color glitch correction data into a color data voltage and providing the color data voltage to a display panel. | 10-11-2012 |
20120293466 | DRIVING APPARATUS AND DRIVING METHOD OF LIQUID CRYSTAL DISPLAY - A driving apparatus of a liquid crystal display includes a signal modification unit which modifies a signal based on a data signal input to the liquid crystal display, where the signal modification unit determines whether the data signal corresponds to an image to be displayed with a quality deterioration and outputs at least one of a first signal and a second signal, where the first signal is output when the signal modification unit determines the data signal corresponds to the image to be displayed with the quality deterioration, and where the second signal is output when the signal modification unit determines the data signal does not corresponds to the image to be displayed with the quality deterioration. | 11-22-2012 |
20120320019 | LIQUID CRYSTAL DISPLAY AND DRIVING METHOD THEREOF - Provided is a liquid crystal display for improving side visibility by calculating a representative value for image data and correcting at least one of a storage voltage Vcst, a reference voltage Vref, and a lookup table LUT according to the calculated representative value. Further, a histogram analysis block is formed inside or outside a signal controller and corrects at least one of the storage voltage Vcst, the reference voltage Vref, and the lookup table LUT based on the histogram analysis block. | 12-20-2012 |
20130169619 | METHOD OF DRIVING DISPLAY PANEL AND DISPLAY APPARATUS FOR PERFORMING THE SAME - A display panel apparatus includes a display panel and a timing controller, and a data driver. The display panel includes a first subpixel and a second subpixel. The timing controller is configured to receive a first subpixel data for the first subpixel and a second subpixel data for the second subpixel. When the second subpixel is determined to be defective, the timing controller generates a compensated grayscale of the second subpixel data. The data driver is configured to apply a precharge voltage to the second subpixel and a charging voltage to second subpixel through a data line, wherein the precharge voltage is based on a grayscale of the first subpixel data and the charging voltage is based on the compensated grayscale of the second subpixel data. | 07-04-2013 |
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 |
20140104324 | DISPLAY APPARATUS AND METHOD OF DRIVING THE SAME - A display apparatus includes a temperature sensor, a timing controller, a data driver and a display panel. The temperature sensor senses a temperature, the timing controller includes a dynamic capacitance capture (“DCC”) block, which converts a green data, a red data and a blue data into a green compensation data, a red compensation data and a blue compensation data, respectively, based on the temperature sensed by the temperature sensor, and the data driver converts the red compensation data, the green compensation data and the blue compensation data into a data voltage and outputs the data voltage. The display panel receives the data voltage and displays an image. | 04-17-2014 |
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 |
20140306984 | DISPLAY DEVICE AND DRIVING METHOD THEREOF - Disclosed are a display device and a driving method thereof. The display device includes: a first lookup table that stores first color compensation data optimized to display a first color; a second lookup table that stores second color compensation data optimized to display a second color different from the first color; and a color compensating unit that refers to the first lookup table and the second lookup table. | 10-16-2014 |
20150194105 | METHOD OF MORE QUICKLY CALIBRATING DISPLAY PANELS AND CALIBRATION APPARATUS FOR PERFORMING THE SAME - A method of reducing a total, per device, measurements taking time in a calibration system that uses a sensor array that serially reports out its readings and a data processing unit that needs to receive the reported out readings in good order before allowing an under-measurement first display device to advance away from a measurements taking station includes the step of not driving the first display device with all of required full screen test images where each is a full screen display of only a respective one of a predetermined minimum number of grayscale values produced as a minimum number of needed full screen sample images and; in place of at least a first plurality of the not-produced full screen images, driving the under-measurement first display device with a partial screen multi-pattern that presents a plurality of different grayscale values including ones not presented by those of all of the full screen test images that are used to drive the under-measurement first display device. The serially reported out readings from the sensor array for the partial screen multi-pattern and for the full screen test images are obtained and used to generate virtual full screen sample images based on the obtained partial screen multi-pattern and for the full screen test images. | 07-09-2015 |
Patent application number | Description | Published |
20090206908 | Radio Frequency Switch - An RF switch includes first, second and third transmission lines for forming ports, respectively, and first, second and third slot line pattern portions connected to one another, for transferring signals to the first, second and third transmission lines, respectively. The first slot line pattern portion has a slot line pattern for transferring a signal received from the first transmission line to a connection point with the other slot line pattern portions, and a switching circuit for shorting the gap of a corresponding slot line and thus blocking the signal transfer. The second slot line pattern portion includes a loop slot line formed by a first and a second half loop slot line, a second sub-slot line for transferring a signal received from the connection point to the second transmission line through the loop slot line, and a switching circuit for shorting the gap of a corresponding slot line. | 08-20-2009 |
20090315639 | DPDT RF Switch and TMA Using the Same - Disclosed is a DPDT RF switch. The DPDT RF switch includes: first to fourth transmission lines for forming first to fourth ports, respectively; and first to fourth slot line pattern sections. The first slot line pattern section includes: a first slot line; and a first switching device for blocking signal transfer by short-circuiting a gap of a slot line. The third slot line pattern section includes: a third slot line; and a third switching device for blocking signal transfer by short-circuiting a gap of a slot line. The second slot line pattern section includes: a first loop-shaped slot line; a second slot line; and a second switching device for blocking signal transfer by short-circuiting a gap of a slot line. The fourth slot line pattern section includes: a second loop-shaped slot line; a fourth slot line; and a fourth switching device for blocking signal transfer by short-circuiting a gap of a slot line. | 12-24-2009 |
20100008267 | Radio Frequency Switch - Disclosed is a radio frequency (RF) switch including: a circulator having first to third nodes, which are connected to first to third ports, respectively; and a slot line pattern unit installed in a connection line between the third node of the circulator and the third port so as to carry out signal transmission or interception, wherein the slot line pattern unit includes a switching circuit, which is installed at a predetermined location so as to transmit or intercept a signal by maintaining or short-circuiting a gap of a slot line corresponding to the installed location according to an external switching control signal. | 01-14-2010 |
20110176462 | BASE STATION ANTENNA IN A MOBILE COMMUNICATION SYSTEM - A Base Station (BS) antenna in a mobile communication system is provided, in which a reflective plate has a frontal surface onto which radiation elements are attached, and at least one protector is attached onto the reflective plate, surrounding at least part of the reflective plate. | 07-21-2011 |