Abstract: A display apparatus includes a display panel, a driving controller, a gate driver and a data driver. The driving controller is configured to insert a compensation image to first image data including a normal image to generate second image data. The gate driver is configured to shift an output time of a gate signal and to output the gate signal having a shifted output time to the display panel. The data driver is configured to generate a data voltage based on the second image data and to output the data voltage to the display panel. A gate shift amount when the compensation image is applied is substantially the same as a gate shift amount immediately before the compensation image is applied.

Abstract: A display device includes a display panel, controller configured to generate a second data enable signal and second image data based on a first data enable signal and first image data, and generate an output data enable signal and output image data by performing a black data insertion operation, and data driver configured to provide data signals based on the output data enable signal and the output image data, where the controller obtains a delay time between the first data enable signal and the second data enable signal or the first image data and the second image data, determines a number of subsequent pulses of the output data enable signal during a period from one time point within a frame period to an end time point of the frame period, and adjusts a cycle of the subsequent pulses based on the delay time and the number of the subsequent pulses.

Abstract: A display device of the present invention includes a pixel unit including a plurality of pixels connected to data lines and scan lines; a data driver disposed on one side of the pixel unit to drive the data lines; a scan driver disposed on the one side of the pixel unit together with the data driver to drive the scan lines; and a controller which controls an output timing of a data signal in units of pixel columns and units of pixel rows based on a load of a scan signal supplied to the scan lines and a load of the data signal supplied to the data lines.

Abstract: A display device of the present invention includes a pixel unit including a plurality of pixels connected to data lines and scan lines; a data driver disposed on one side of the pixel unit to drive the data lines; a scan driver disposed on the one side of the pixel unit together with the data driver to drive the scan lines; and a controller which controls an output timing of a data signal in units of pixel columns and units of pixel rows based on a load of a scan signal supplied to the scan lines and a load of the data signal supplied to the data lines.

Abstract: A liquid crystal display device comprising, a liquid crystal display panel, a timing controller configured to output a light-source controlling signal during a variable frequency mode comprising a plurality of frames with variable frame frequencies, the light-source controlling signal having a high level during a light-on period preset in an early period of a frame of the plurality of frames and a low level during a light-off period preset to a length according to a frame frequency in a latter period of the frame of the plurality of frames, and a light source configured to emit light during the light-on period and not emit light during the light-off period in response to the light-source controlling signal.

Abstract: A method of operating a display device involves detecting whether a frame mode of the display device is a normal mode in which image data are received with a constant frame rate or a variable frame mode in which the image data are received with a variable frame rate. An output buffer drivability of a data driver included in the display device may be set according to the detected frame mode, and an image is displayed by outputting data voltages corresponding to the image data with slew rates corresponding to the set output buffer drivability. Power consumption in output buffer amplifiers may be selectively lowered by setting a relatively low output buffer drivability corresponding to a relatively low slew rate.

Abstract: A display apparatus includes a display panel, a timing controller, a data driver, and a gate driver. The timing controller receives image data at a number of frames per second of a first level and generates a gate control signal and a data control signal. The timing controller includes an image converter that operates in film mode or normal mode when the input image data are moving image data, and that outputs film image data at a number of frames per second of second level lower than the first level during the film mode. The data driver applies a data voltage corresponding to the film image data to the display panel based on the data control signal. The gate driver applies a gate voltage to the display panel based on the gate control signal. The display panel operates at a frequency of the second level during the film mode.

Abstract: A display device includes a display panel comprising a plurality of pixels, a light-source configured to provide a light to the display panel and comprising a plurality of emitting blocks, a dimming level calculator configured to calculate dimming levels of the emitting blocks based on an image signal, and a data corrector configured to calculate correction data of pixel data utilizing the dimming levels of the emitting blocks, the correction data having gradually increasing gray levels when the pixel data are higher in gray level than a preset gray level.

Abstract: A liquid crystal display device comprising, a liquid crystal display panel, a timing controller configured to output a light-source controlling signal during a variable frequency mode comprising a plurality of frames with variable frame frequencies, the light-source controlling signal having a high level during a light-on period preset in an early period of a frame of the plurality of frames and a low level during a light-off period preset to a length according to a frame frequency in a latter period of the frame of the plurality of frames, and a light source configured to emit light during the light-on period and not emit light during the light-off period in response to the light-source controlling signal.

Abstract: A display device includes a display panel including a plurality of pixels and divided into a plurality of regions, a data driver generating a plurality of reference gamma voltages based on a gamma control signal and including a data driving integrated circuit applying a data signal generated using the plurality of reference gamma voltages to a corresponding pixel among the plurality of pixels, a memory storing a plurality of gamma voltage data corresponding to a plurality of gamma curves of each of the plurality of regions, and a signal controller determining characteristics of a plurality of images divided and displayed in the plurality of regions using an input image signal, selecting the gamma curves corresponding to the plurality of regions according to the characteristics, and reading gamma voltage data corresponding to the selected gamma curve from the memory to generate the gamma control signal.

Abstract: A display apparatus includes a display panel to display an image, a first frame counter to count a first number of frames during a first duration and to be reset when the first number reaches a first reference number, a second frame counter to count a second number of the frames during a second duration and to be reset when the second number reaches a second reference number, wherein the second duration occurs after and is shorter than the first duration, a level counter to hold a count value at a first count value during the first duration, to change the count value when the first frame counter is reset, and to change the count value when the second frame counter is reset, and a common voltage generator to control a level of a common voltage to correspond to the count value and to output the common voltage.

Abstract: A method of driving a display panel includes compensating first pixel data corresponding to a first pixel of a plurality of pixels in the display panel based on at least one of a first decision, a second decision, or a third decision and generating a first data voltage corresponding to the compensated first pixel data. The first data voltage is applied to the first pixel through a data line. The first decision includes determining, based on a position of the first pixel, whether compensation for the first pixel data is required. The second decision includes determining, based on previous subpixel data and present subpixel data for the first pixel, whether the compensation for the first pixel data is required. The third decision includes determining whether the first pixel data complies with a compensation avoidance condition.

Abstract: A display device includes: a display panel configured to display an image; a timing controller configured to output line configuration signals, frame configuration signals, and image signals; a plurality of data drivers each of which is configured to receive the line configuration signals, the frame configuration signals, and the image signals and provide a data voltage corresponding to the image signals to the display panel according to the line configuration signals and the frame configuration signals; a high speed driving line configured to connect the timing controller and one of the data drivers and transfer the image signals; and a low speed driving line configured to connect the timing controller and the data drivers and transfer the line configuration signals.

Abstract: A display apparatus includes a display panel, a timing controller, a data driver, and a gate driver. The timing controller receives image data at a number of frames per second of a first level and generates a gate control signal and a data control signal. The timing controller includes an image converter that operates in film mode or normal mode when the input image data are moving image data, and that outputs film image data at a number of frames per second of second level lower than the first level during the film mode. The data driver applies a data voltage corresponding to the film image data to the display panel based on the data control signal. The gate driver applies a gate voltage to the display panel based on the gate control signal. The display panel operates at a frequency of the second level during the film mode.

Abstract: A method of operating a display device involves detecting whether a frame mode of the display device is a normal mode in which image data are received with a constant frame rate or a variable frame mode in which the image data are received with a variable frame rate. An output buffer drivability of a data driver included in the display device may be set according to the detected frame mode, and an image is displayed by outputting data voltages corresponding to the image data with slew rates corresponding to the set output buffer drivability. Power consumption in output buffer amplifiers may be selectively lowered by setting a relatively low output buffer drivability corresponding to a relatively low slew rate.

Abstract: A display apparatus includes a first compensation part that corrects image data using an LUT that stores correction data corresponding to the image data, where grayscale differences between low-grayscale correction data and low-grayscale image data are greater than grayscale differences between middle-grayscale correction data and middle-grayscale image data, and a low-grayscale filter that transforms grayscale values of low-grayscale image data into predetermined low-grayscale values when grayscale values of the low-grayscale image data are less than or equal to a threshold low-grayscale value.

Abstract: A display apparatus includes a display panel, a timing controller, a data driver, and a gate driver. The timing controller receives image data at a number of frames per second of a first level and generates a gate control signal and a data control signal. The timing controller includes an image converter that operates in film mode or normal mode when the input image data are moving image data, and that outputs film image data at a number of frames per second of second level lower than the first level during the film mode. The data driver applies a data voltage corresponding to the film image data to the display panel based on the data control signal. The gate driver applies a gate voltage to the display panel based on the gate control signal. The display panel operates at a frequency of the second level during the film mode.

Abstract: A display device includes a display panel including a plurality of pixels respectively connected to a plurality of gate lines and to a plurality of data lines, a gate driving circuit configured to drive the plurality of gate lines, a data driving circuit configured to drive the plurality of data lines, a timing controller configured to provide a data signal to the data driving circuit, configured to control the gate driving circuit, and configured to output a voltage control signal, and a voltage generator configured to generate a plurality of reference voltages in response to the voltage control signal, wherein the data driving circuit is further configured to convert the data signal into a grayscale voltage based on the plurality of reference voltages, wherein a voltage level of each of the reference voltages is changed periodically within a range.

Abstract: A display device includes: a display panel configured to display an image; a timing controller configured to output line configuration signals, frame configuration signals, and image signals; a plurality of data drivers each of which is configured to receive the line configuration signals, the frame configuration signals, and the image signals and provide a data voltage corresponding to the image signals to the display panel according to the line configuration signals and the frame configuration signals; a high speed driving line configured to connect the timing controller and one of the data drivers and transfer the image signals; and a low speed driving line configured to connect the timing controller and the data drivers and transfer the line configuration signals.

Abstract: A display device includes a display panel including a plurality of pixels and divided into a plurality of regions, a data driver generating a plurality of reference gamma voltages based on a gamma control signal and including a data driving integrated circuit applying a data signal generated using the plurality of reference gamma voltages to a corresponding pixel among the plurality of pixels, a memory storing a plurality of gamma voltage data corresponding to a plurality of gamma curves of each of the plurality of regions, and a signal controller determining characteristics of a plurality of images divided and displayed in the plurality of regions using an input image signal, selecting the gamma curves corresponding to the plurality of regions according to the characteristics, and reading gamma voltage data corresponding to the selected gamma curve from the memory to generate the gamma control signal.