Abstract: A display device includes a driving controller determining whether a dimming value is within one of first and second ranges, compare, in response to determining of the dimming value being within the first range, the dimming value with a first value and operate, in response to a comparison result of the dimming value and the first value, in one of first and second modes, compare, in response to determining of the dimming value within the second range, the dimming value with a second value and operate, in response to a comparison result of the dimming value and the second value, in one of the first and second modes, output the light emitting control signal for adjusting a pulse width of the light emitting signal in the first mode, and output the output data signal by modifying the input image signal based on the dimming value in the second mode.

Abstract: A gamma voltage setting method of a display device includes: supplying, to a data driver, data corresponding to a specific grayscale of a specific dimming level; generating a data signal corresponding to the data in the data driver, using a gamma voltage corresponding to a processing gamma value; displaying an image corresponding to the data signal in a pixel unit; determining a temperature of the pixel unit; loading, from a look-up table, a target luminance and a target color coordinate, which correspond to the specific dimming level, the specific grayscale, and the temperature of the pixel unit; generating a gamma value such that an image corresponding to the target luminance and the target color coordinate is displayed in the pixel unit; and storing the gamma value.

Abstract: A display device is disclosed that includes a display panel, a timing controller, and a data driver. The display panel includes a plurality of pixels. The timing controller is configured to calculate an on-pixel ratio of first image data and correct the first image data into second image data based on the on-pixel ratio. The data driver is configured to generate a data signal based on the second image data and provide the data signal to the pixels. The timing controller calculates the second image data by estimating a temperature of the display panel using the on-pixel ratio and gamma-correcting the first image data in response to the temperature.

Abstract: An electronic device includes a display layer, a data driving circuit, a scan driving circuit, a driving controller, and a temperature sensor which measures a temperature of the display layer to generate temperature data. The driving controller includes a first lookup table calculating unit which calculates a first lookup table based on the image signal, the temperature data, and a reference lookup table set for each of a plurality of gray levels, a luminance compensating unit which calculates a luminance weight based on luminance data, and a second lookup table calculating unit which calculates a second lookup table based on the first lookup table and the luminance weight, and the driving controller generates the image data based on the image signal and the second lookup table.

Abstract: A display device includes: a display unit including pixels connected to data lines and scan lines, the display unit being partitioned into a plurality of blocks; at least one driver overlapping with the display unit in a plan view, where the at least one driver is configured to drive the display unit; a temperature sensor for generating an ambient temperature value; and a timing controller for generating a panel temperature value corresponding to an actual temperature of the display unit by using the ambient temperature value, and generating pixel temperature values corresponding to temperatures of the pixels, respectively, by using the panel temperature value. The timing controller is supplied with input data, and generates output data by reflecting the pixel temperature value on the input data.

Abstract: A display device includes a luminance correction unit that corrects input data based on a dimming code value and outputs correction data, a gamma correction unit that corrects the correction data and generates output data, a gamma voltage generator that generates gamma voltages depending on a first voltage code value, a data driver that converts the output data into data voltages based on the gamma voltages, and a controller that supplies the dimming code value and the input data to the luminance correction unit and provides the first voltage code value to the gamma voltage generator. The controller compares a highest dimming compares a highest dimming grayscale value of the output data determined by the dimming code value with a highest reference grayscale value and updates the first voltage code value with a second voltage code value.

Abstract: A display device includes a luminance correction unit that corrects input data based on a dimming code value and outputs correction data, a gamma correction unit that corrects the correction data and generates output data, a gamma voltage generator that generates gamma voltages depending on a first voltage code value, a data driver that converts the output data into data voltages based on the gamma voltages, and a controller that supplies the dimming code value and the input data to the luminance correction unit and provides the first voltage code value to the gamma voltage generator. The controller compares a highest dimming compares a highest dimming grayscale value of the output data determined by the dimming code value with a highest reference grayscale value and updates the first voltage code value with a second voltage code value.

Abstract: An electronic device includes a display layer, a data driving circuit, a scan driving circuit, a driving controller, and a temperature sensor which measures a temperature of the display layer to generate temperature data. The driving controller includes a first lookup table calculating unit which calculates a first lookup table based on the image signal, the temperature data, and a reference lookup table set for each of a plurality of gray levels, a luminance compensating unit which calculates a luminance weight based on luminance data, and a second lookup table calculating unit which calculates a second lookup table based on the first lookup table and the luminance weight, and the driving controller generates the image data based on the image signal and the second lookup table.

Abstract: A display device is disclosed that includes a display panel, a timing controller, and a data driver. The display panel includes a plurality of pixels. The timing controller is configured to calculate an on-pixel ratio of first image data and correct the first image data into second image data based on the on-pixel ratio. The data driver is configured to generate a data signal based on the second image data and provide the data signal to the pixels. The timing controller calculates the second image data by estimating a temperature of the display panel using the on-pixel ratio and gamma-correcting the first image data in response to the temperature.

Abstract: A display device may include a display panel including a plurality of pixels. An interpolator may be configured to generate a first voltage value corresponding to an input data value using a preset gamma lookup table. A gamma compensator may be configured to, based on a dimming value, select at least one of a plurality of preset dimming lookup tables, and may calculate a first output data value by correcting the first voltage value based on the at least one dimming lookup table. A gamma voltage generator may be configured to generate a plurality of gamma voltages having a linear relationship. A data driver may be configured to select a first gamma voltage from among the gamma voltages based on the first output data value, and provide the first gamma voltage, as a data voltage, to the display panel.

Abstract: A display device may include a display panel including a plurality of pixels. An interpolator may be configured to generate a first voltage value corresponding to an input data value using a preset gamma lookup table. A gamma compensator may be configured to, based on a dimming value, select at least one of a plurality of preset dimming lookup tables, and may calculate a first output data value by correcting the first voltage value based on the at least one dimming lookup table. A gamma voltage generator may be configured to generate a plurality of gamma voltages having a linear relationship. A data driver may be configured to select a first gamma voltage from among the gamma voltages based on the first output data value, and provide the first gamma voltage, as a data voltage, to the display panel.

Abstract: A display apparatus includes a display panel, a timing controller, and a data driver. The display panel includes subpixels for displaying images. The timing controller accumulates a count value when a same grayscale value repeats for one of the subpixels, determines a boundary portion of the image based on the accumulated count value, and generates a data signal to compensate the boundary portion. The data driver converts the data signal to a data voltage for the display panel.

Abstract: A display device is disclosed. The display device comprises a display panel whose luminance changes from a start luminance to a target luminance lower than the start luminance and which displays an image, wherein the image comprises a start frame having the start luminance and a start gamma, a target frame having the target luminance and a target gamma, and a plurality of intermediate frames sequentially placed between the start frame and the target frame, where a difference in the luminance of the display panel between adjacent frames is reduced.

Abstract: A touch display device includes a touch sensor, a visual accelerator, and a display. The touch sensor senses a touch. The visual accelerator visualizes the touch. The display displays information corresponding to the visualized touch. When the touch is outside a visual acceleration area, the visual accelerator does not process the touch. When the touch is in the visual acceleration area, the visual accelerator visualizes the touch on the display.

Abstract: A display device is disclosed. The display device comprises a display panel whose luminance changes from a start luminance to a target luminance lower than the start luminance and which displays an image, wherein the image comprises a start frame having the start luminance and a start gamma, a target frame having the target luminance and a target gamma, and a plurality of intermediate frames sequentially placed between the start frame and the target frame, where a difference in the luminance of the display panel between adjacent frames is reduced.

Abstract: A display device is disclosed. The display device comprises a display panel whose luminance changes from a start luminance to a target luminance lower than the start luminance and which displays an image, wherein the image comprises a start frame having the start luminance and a start gamma, a target frame having the target luminance and a target gamma, and a plurality of intermediate frames sequentially placed between the start frame and the target frame, where a difference in the luminance of the display panel between adjacent frames is reduced.

Abstract: A display apparatus includes a display panel, a timing controller, and a data driver. The display panel includes subpixels for displaying images. The timing controller accumulates a count value when a same grayscale value repeats for one of the subpixels, determines a boundary portion of the image based on the accumulated count value, and generates a data signal to compensate the boundary portion. The data driver converts the data signal to a data voltage for the display panel.

Abstract: An organic light emitting display device includes a display panel including an organic light emitting diode, a power supply including a DC-DC converter that generates a driving voltage for the organic light emitting diode and that provides the driving voltage to the display panel, the DC-DC converter including an inductor and a switch, and an over-current prevention unit that blocks supply of the driving voltage when a value of a current flowing through the inductor is greater than a reference value.

Abstract: An organic light emitting display device includes a scan driving unit configured to provide a scan signal to pixel circuits via a plurality of scan lines, a data driving unit configured to provide a data signal to the pixel circuits via a plurality of data lines, a power unit configured to provide a first power voltage and a second power voltage to the pixel circuits, the first power voltage being greater than the second power voltage, a gamma reference voltage generating unit configured to generate a gamma reference voltage corresponding to a voltage difference between the first power voltage and a subtraction reference voltage, a gamma voltage generating unit configured to generate a plurality of gamma voltages based on the gamma reference voltage, and to provide the gamma voltages to the data driving unit, and a timing control unit.

Abstract: A touch display device includes a touch sensor, a visual accelerator, and a display. The touch sensor senses a touch. The visual accelerator visualizes the touch. The display displays information corresponding to the visualized touch. When the touch is outside a visual acceleration area, the visual accelerator does not process the touch. When the touch is in the visual acceleration area, the visual accelerator visualizes the touch on the display.