Patent application number | Description | Published |
20090125750 | USING MEMORIES TO CHANGE DATA PHASE OR FREQUENCY - A data processing apparatus includes a first memory which comprises a first input/output port and a second input/output port; a second memory which is connected to the first memory and comprises a third input/output port; and a controller for controlling the first and second memories to perform operations of: (a) writing data to the first memory through the first input/output port; (b) reading the data from the first memory through the second input/output port; (c) writing the data read out of the first memory to the second memory through the third input/output port; and (d) reading the data from the second memory through the third input/output port; wherein the operation (a) is performed at a first frequency and the operations (b), (c), (d) are each performed at a second frequency, wherein either: (i) the first frequency is different from the second frequency, or (ii) the first frequency is equal to the second frequency but in each of the operations (b), (c) and (d) the data is different in phase than in the operation (a). | 05-14-2009 |
20090128705 | VIDEO PROCESSING APPARATUS AND GAMMA CORRECTION METHOD THEREOF - Provided is a video processing apparatus comprising a storage unit and a gamma correction unit. The storage unit stores a plurality of representative values of brightness to perform a gamma correction to a video signal. The gamma correction unit calculates a difference value between two adjacent representative values among the plurality of representative values, and performs gamma correction on the video signal based on the plurality of representative values and the plurality of difference values. | 05-21-2009 |
20090177930 | TIMING CONTROLLER, ERROR DETECTION METHOD OF THE TIMING CONTROLLER, AND DISPLAY DEVICE HAVING THE TIMING CONTROLLER - A timing controller includes a control unit, an error signal generating unit, and an operation detecting unit. The control unit transfers a plurality of input data and outputs a plurality of completion signals according to transfer states of the respective data. The error signal generating unit generates a plurality of error signals with different waveforms, and the operation detecting unit selectively outputs one of the plurality of error signals in response to the plurality of completion signals. | 07-09-2009 |
20090201272 | TIMING CONTROLLER, DISPLAY APPARATUS HAVING THE SAME AND SIGNAL PROCESSING METHOD THEREOF - A timing controller includes a count control circuit, a pulse width detector, and a pulse generator. The count control circuit receives an external enable signal. Pulses of the external enable signal include an effective and a blank period of image data. The count control circuit counts pulse widths of each of the pulses. The pulse width detector receives the counted pulse widths, compares a pulse width of a present pulse with pulse widths of previous pulses, and detects a pulse width of a previous pulse that has a pulse width smaller than the pulse width of the present pulse. The pulse generator generates three output pulses having pulse widths that are one-third a period of the detected previous pulse. The pulse generator outputs the first, second and third pulses as an internal enable signal. | 08-13-2009 |
20100033453 | LIQUID CRYSTAL DISPLAY HAVING ENDURANCE AGAINST ELECTROSTATIC DISCHARGE - In a liquid crystal display equipped with a timing controller, the timing controller generates a restoration signal having a predetermined pulse width in response to a data enable signal and operates in a fail mode when a difference between the data enable signal and the restoration signal is larger than a threshold value. Even if the data enable signal is distorted by electrostatic discharge, the liquid crystal display uses the restoration signal as a data enable signal without entering the fail mode when the distortion degree is smaller than the threshold value. Thus, a user may not recognize the electrostatic discharge when the electrostatic discharge is applied to the liquid crystal display for a short period of time. | 02-11-2010 |
20100149228 | METHOD FOR PROCESSING DATA, DRIVING APPARATUS FOR PERFORMING THE METHOD AND DISPLAY APPARATUS HAVING THE DRIVING APPARATUS - A method for processing image data, the image data including a plurality of sub color data corresponding to a plurality of unit pixels in a row direction, wherein each unit pixel includes N sub color data having different colors, wherein N is a natural number greater than or equal to 2, includes; storing one sub color datum of the plurality of the sub color data corresponding to the unit pixels via dividing the plurality of the sub color data one by one into an individual sub color datum corresponding to a single pixel, and reading the stored sub color data, binding up the stored sub color data two by two, and storing two sub color data bound up with each other. | 06-17-2010 |
20100156866 | DISPLAY APPARATUS AND CONTROL METHOD THEREOF - The present invention relates to a display apparatus to synchronize a synchronous signal and an inverter driving signal in response to a display mode, and a control method thereof. A back light unit of the display apparatus makes a back light to dim based on an inverter driving signal, and a dimming frequency of the back light varies in response to a synchronous signal frequency of the image. When a synchronous signal having an abnormal frequency is inputted to the back light unit for several seconds, the back light unit holds the frequency of the inverter driving signal and the frequency of the inverter driving signal varies smoothly in response to the display mode. | 06-24-2010 |
20100207953 | LIQUID CRYSTAL DISPLAY AND METHOD OF DRIVING THE SAME - A LCD includes: a display panel and a signal controller. The display panel includes n pixels arranged in a matrix, wherein n is a natural number. The signal controller sequentially receives first through 2n-th pixel image signals, sequentially calculates a difference between a k-th pixel image signal and a (n+k)-th pixel image signal, recognizes the (n+k)-th pixel image signal as a motion signal when the difference is greater than a first reference value and recognizes the (n+k)-th pixel image signal as a non-motion signal when the difference is equal to or less than the first reference value, and determines whether the (n+k)-th pixel image signal is a moving-image signal based on numbers of motion signals and non-motion signals recognized. An image signal of a previous frame includes the first through n-th pixel image signals and an image signal of a current frame includes the (n+1)-th through 2n-th pixel image signals. | 08-19-2010 |
20110169800 | METHOD OF PROCESSING DATA AND DISPLAY APPARATUS FOR PERFORMING THE METHOD - A display apparatus includes a display panel, a timing control part and a data driving part. The display panel is divided into N display areas. The timing control part includes a serializing part to serializing N data received in parallel to generate an N-th frame data, a overdriving part to select one of the N-th frame data and a previous frame data stored depending on whether the received data are normal and to compensate the selected frame data to generate a compensation frame data, and an interface part to divide the compensation frame data and to output the N compensation data. A data driving part includes N data driving circuits to generate data driving voltages corresponding to the N compensation data to output the data driving voltage to the N display areas where N is a natural number. | 07-14-2011 |
20120162185 | METHOD OF DRIVING DISPLAY PANEL AND DISPLAY APPARATUS FOR PERFORMING THE SAME - A method of driving a display panel includes converting a first data enable signal including a first cycle based on a compensation parameter to generate a second data enable signal including a second cycle longer than the first cycle, generating a plurality of gate signals based on the second data enable signal to output the gate signals to a plurality of gate lines of the display panel, and generating a plurality of data voltages based on the first data enable signal to output the data voltages to a plurality of data lines of the display panel. | 06-28-2012 |
20130044091 | SIGNAL CONTROL DEVICE, LIQUID CRYSTAL DISPLAY HAVING THE SAME AND SIGNAL CONTROL METHOD USING THE SAME - A signal controlling method for a display device for signal processing between an external system and a display panel that displays an image by receiving a signal from the external system. The method includes receiving N clock signals and N data signals synchronized with the N clock signals from the external system through N channels, N being a natural number no less than 2; writing the received N data signals in N storage units in order of reception time of the N data signals; extracting one clock signal from the N clock signals; and outputting the N data signals written in the N storage units simultaneously in synchronization with the extracted clock signal. | 02-21-2013 |