摘要:
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.
摘要:
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.
摘要:
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.
摘要:
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.
摘要:
A method for generating data for driving a display panel is provided in which first compensation data of (N+k) bits, corresponding to grayscale data of N bits, is generated, wherein values of N and k are natural numbers. A first gamma curve is applied to the first compensation data of (N+k) bits. Second compensation data of (N+k) bits, corresponding to the grayscale data of N bits, is generated. A second gamma curve is applied to the second compensation data of (N+k) bits. The first compensation data or the second compensation data are selectively output and converted into analog data signals. The analog data signals are output to a data line. Accordingly, the first compensation data and second compensation data includes a multidomain structure which improves display quality. A data driving circuit and a display device including the data driving circuit for performing the method are also provided.
摘要:
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−1)-th frame, storing the pre-compensation data of the n-th frame, and generating compensation data of the n-th frame having a gray scale greater than or equal to the gray scale of the image data of the n-th frame by using the image data of the n-th frame and the pre-compensation data of the (n−1)-th frame.
摘要:
A timing controller includes a receiver, an internal clock generator, a first frequency converter, a first selector and a control signal generator. The receiver receives an image signal and a main clock signal having a first spread spectrum frequency from an external system, converts the main clock signal to a converted main clock signal and the image signal to a first converted image signal, and outputs the converted main clock signal as a first clock signal having a plurality of frequencies. The internal clock generator multiplies the frequencies of the first clock signal and generates a second clock signal having a frequency band within the multiplied frequencies of the first clock signal. The first frequency converter converts the second clock signal to a third clock signal having a second spread spectrum frequency. The first selector selects one of the second clock signal and the third clock signal in response to a first selection signal and outputs the selected one of the second clock signal and the third clock signal as a control clock signal. The control signal generator receives the control clock signal to generate a control signal synchronized with the control clock signal.
摘要:
A method of restoring a timing controller includes generating an error condition signal from a timing controller by checking abnormality of an image signal and a control signal provided from an image board, feeding back the error condition signal to the image board, and restoring the timing controller based on the error condition signal.
摘要:
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.
摘要:
A display apparatus includes a display panel, a plurality of gate lines driving circuit parts, a plurality of data lines driving circuit parts and a timing control part. The display panel includes a plurality of gate lines and a plurality of data lines. The gate lines driving circuit parts output gate signals to the gate lines. The data lines driving circuit parts output data signals to the data lines. The timing control part applies a dummy gate signal to at least one dummy gate line, controls a latch sequence of image data and an output sequence of the gate lines driving circuit parts in a reverse sequence, in response to an inverted-mounting mode selection signal for displaying an inverted mount image to the display panel. Because signal lines can be shortened, heat generated by the display apparatus may be decreased and image quality of the display apparatus may be improved.