Abstract: A display device includes a display panel including a plurality of pixels, a power supply which provides a driving voltage to the pixels, and a controller which outputs a first signal by comparing a sensing driving current generated by sensing driving currents flowing through the pixels with a limit current, outputs a second signal by comparing a load of previous frame data with a limit load, and outputs a driving voltage control signal for controlling the driving voltage to the power supply based on the first signal and the second signal.

Abstract: A display device includes a display panel including a plurality of pixels, a display panel driver, and a zone compensating circuit which divides the display panel into a plurality of unit blocks, obtains load values of input image data for the unit blocks, and generates corrected image data by correcting the input image data based on the load values. Each of the load values corresponds to one of the unit blocks. The display panel driver generates a data signal for displaying an image on the display panel based on the corrected image data. When grayscale values included in the input image data are the same, a luminance of the image displayed on the display panel is decreased moving away from a center of a reference block having a largest load value among the unit blocks based on the corrected image data.

Abstract: A display device includes a display panel including a plurality of pixels, a power supply which provides a driving voltage to the pixels, and a controller which outputs a first signal by comparing a sensing driving current generated by sensing driving currents flowing through the pixels with a limit current, outputs a second signal by comparing a load of previous frame data with a limit load, and outputs a driving voltage control signal for controlling the driving voltage to the power supply based on the first signal and the second signal.

Abstract: Provided are a display device and a driving method thereof. The display device includes: a display panel for displaying an image, based on data signals supplied from data lines; a load controller for determining a scale factor for controlling a target luminance of the image displayed in the display panel, based on a load of first image data input from the outside; and a data driver for outputting data signals to the data lines, corresponding to the first image data corrected using the scale factor. The data driver includes a plurality of data driver chips coupled to at least one data line among the data lines. The load controller determines the scale factor, based on at least one of a total load of the first image data and local loads with respect to the respective data driver chips.

Abstract: A display device includes a display panel including a plurality of pixels, a display panel driver, and a zone compensating circuit which divides the display panel into a plurality of unit blocks, obtains load values of input image data for the unit blocks, and generates corrected image data by correcting the input image data based on the load values. Each of the load values corresponds to one of the unit blocks. The display panel driver generates a data signal for displaying an image on the display panel based on the corrected image data. When grayscale values included in the input image data are the same, a luminance of the image displayed on the display panel is decreased moving away from a center of a reference block having a largest load value among the unit blocks based on the corrected image data.

Abstract: A display device includes a display panel including a plurality of pixels, a display panel driver, and a zone compensating circuit which divides the display panel into a plurality of unit blocks, obtains load values of input image data for the unit blocks, and generates corrected image data by correcting the input image data based on the load values. Each of the load values corresponds to one of the unit blocks. The display panel driver generates a data signal for displaying an image on the display panel based on the corrected image data. When grayscale values included in the input image data are the same, a luminance of the image displayed on the display panel is decreased moving away from a center of a reference block having a largest load value among the unit blocks based on the corrected image data.

Abstract: Provided are a display device and a driving method thereof. The display device includes: a display panel for displaying an image, based on data signals supplied from data lines; a load controller for determining a scale factor for controlling a target luminance of the image displayed in the display panel, based on a load of first image data input from the outside; and a data driver for outputting data signals to the data lines, corresponding to the first image data corrected using the scale factor. The data driver includes a plurality of data driver chips coupled to at least one data line among the data lines. The load controller determines the scale factor, based on at least one of a total load of the first image data and local loads with respect to the respective data driver chips.

Abstract: Provided are a display device and a driving method thereof. The display device includes: a display panel for displaying an image, based on data signals supplied from data lines; a load controller for determining a scale factor for controlling a target luminance of the image displayed in the display panel, based on a load of first image data input from the outside; and a data driver for outputting data signals to the data lines, corresponding to the first image data corrected using the scale factor. The data driver includes a plurality of data driver chips coupled to at least one data line among the data lines. The load controller determines the scale factor, based on at least one of a total load of the first image data and local loads with respect to the respective data driver chips.

Abstract: A display device includes a display panel including pixels, a luminance controller that divides the display panel into blocks based on coordinate information, calculates a block reference current based on a block current sensed in each of the blocks when reference images are sequentially displayed on the blocks, calculates a target current based on the block reference current and a block load of each of the blocks based on input image data, and calculates a scaling factor based on the target current and a sensing current sensed in each of the blocks when an input image corresponding to the input image data is displayed on the display panel, and a data driver that generates a data voltage corresponding to the input image data and supplies the data voltage to the pixels by adjusting a voltage level of the data voltage based on the scaling factor.

Abstract: A display device includes a display panel including a plurality of pixels, a display panel driver, and a zone compensating circuit which divides the display panel into a plurality of unit blocks, obtains load values of input image data for the unit blocks, and generates corrected image data by correcting the input image data based on the load values. Each of the load values corresponds to one of the unit blocks. The display panel driver generates a data signal for displaying an image on the display panel based on the corrected image data. When grayscale values included in the input image data are the same, a luminance of the image displayed on the display panel is decreased moving away from a center of a reference block having a largest load value among the unit blocks based on the corrected image data.

Abstract: A display device includes: a display including a gate line, a data line, and a pixel electrically coupled to the gate line and the data line; a controller configured to calculate a load of input data; a data driver configured to: generate a data signal corresponding to a grayscale value in the input data; and provide the data signal to the data line; a gate driver configured to: generate a gate signal having a pulse, based on a gate-on voltage; and provide the gate signal to the gate line; and a power supply configured to: provide the gate-on voltage to the gate driver; and vary the gate-on voltage based on the load, wherein the gate-on voltage has a voltage level for turning on the first transistor, and wherein a luminance of the display is increased as the load is increased.

Abstract: A display device includes: a display panel including a plurality of pixels; a first correction circuit configured to perform, using a gamma correction value, a gamma correction for first image data; a second correction circuit configured to receive the gamma-corrected first image, and to generate second image data by performing gray-scale compensation for the gamma-corrected first image data; and a data driver configured to provide a data signal corresponding to the second image data to the plurality of pixels, wherein the second correction circuit performs the gray-scale compensation based on the gamma correction value and a threshold value measured for each of the plurality of pixels.

Abstract: A display device includes a display panel divided into a first display area and a second display area in a first direction, a first data driver which provides a first data signal to the first display area through data lines arranged in a second direction crossing the first direction, a second data driver which provides a second data signal to the second display area through the data lines arranged in the second direction, a gate driver which provides a gate signal to the display panel through gate lines arranged in the first direction, a timing controller which generates control signals that control the first data driver, the second data driver, and the gate driver, and a defect detector which controls to display a defect detecting image and a reference image on the first display area and the second display area alternately based on an enable signal.

Abstract: A display device includes a display panel including pixels, a luminance controller that divides the display panel into blocks based on coordinate information, calculates a block reference current based on a block current sensed in each of the blocks when reference images are sequentially displayed on the blocks, calculates a target current based on the block reference current and a block load of each of the blocks based on input image data, and calculates a scaling factor based on the target current and a sensing current sensed in each of the blocks when an input image corresponding to the input image data is displayed on the display panel, and a data driver that generates a data voltage corresponding to the input image data and supplies the data voltage to the pixels by adjusting a voltage level of the data voltage based on the scaling factor.

Abstract: Provided are a display device and a driving method thereof. The display device includes: a display panel for displaying an image, based on data signals supplied from data lines; a load controller for determining a scale factor for controlling a target luminance of the image displayed in the display panel, based on a load of first image data input from the outside; and a data driver for outputting data signals to the data lines, corresponding to the first image data corrected using the scale factor. The data driver includes a plurality of data driver chips coupled to at least one data line among the data lines. The load controller determines the scale factor, based on at least one of a total load of the first image data and local loads with respect to the respective data driver chips.

Abstract: A display device includes: a display including a gate line, a data line, and a pixel electrically coupled to the gate line and the data line; a controller configured to calculate a load of input data; a data driver configured to: generate a data signal corresponding to a grayscale value in the input data; and provide the data signal to the data line; a gate driver configured to: generate a gate signal having a pulse, based on a gate-on voltage; and provide the gate signal to the gate line; and a power supply configured to: provide the gate-on voltage to the gate driver; and vary the gate-on voltage based on the load, wherein the gate-on voltage has a voltage level for turning on the first transistor, and wherein a luminance of the display is increased as the load is increased.

Abstract: A display device includes: a display panel including a plurality of pixels; a first correction circuit configured to perform, using a gamma correction value, a gamma correction for first image data; a second correction circuit configured to receive the gamma-corrected first image, and to generate second image data by performing gray-scale compensation for the gamma-corrected first image data; and a data driver configured to provide a data signal corresponding to the second image data to the plurality of pixels, wherein the second correction circuit performs the gray-scale compensation based on the gamma correction value and a threshold value measured for each of the plurality of pixels.

Abstract: A power voltage generating circuit includes an input part, a clock determining part and a plurality of switches. The input part receives a plurality of clock signals and generates a plurality of peak signals corresponding to rising edges of the plurality of clock signals. The clock determining part determines a normal mode and an abnormal mode based on a number of the plurality of peak signals. The switches blocks outputs of the plurality of clock signals in the abnormal mode.

Abstract: A display device includes a display panel divided into a first display area and a second display area in a first direction, a first data driver which provides a first data signal to the first display area through data lines arranged in a second direction crossing the first direction, a second data driver which provides a second data signal to the second display area through the data lines arranged in the second direction, a gate driver which provides a gate signal to the display panel through gate lines arranged in the first direction, a timing controller which generates control signals that control the first data driver, the second data driver, and the gate driver, and a defect detector which controls to display a defect detecting image and a reference image on the first display area and the second display area alternately based on an enable signal.

Abstract: A display device may include: a plurality of pixels; a gate driver that receives clock signals and generates and applies a plurality of gate signals to a respective plurality of gate lines connected to the plurality of pixels; and a clock signal driver. The clock signal driver may output the clock signals and receive feedback clock signals derived from the clock signals, compare the feedback clock signals, and control amplitudes of the clock signals so that an amplitude difference between the feedback clock signals is less than a threshold.