A display device may include a display panel which displays an image based on a data voltage, a driving controller including a net power control setter which determines a scale factor for adjusting a gray scale of (N+1).sup.th frame data based on a load of N.sup.th frame data and a net power control reference value, where the driving controller generates a data signal based on input image data, and N is a natural number greater than or equal to 2, a data driver which converts the data signal into the data voltage and outputs the data voltage to the display panel, and a power supply voltage generator which senses a power supply current applied to the display panel in an N.sup.th frame and generates a power supply voltage based on a current level of the power supply current.

A display device includes: pixels, each of the pixels including at least one light emitting element and a first transistor configured to supply a driving current to the at least one light emitting element; a sensing unit configured to sense a driving current of the first transistor, which corresponds to a data voltage applied to one pixel from among the pixels, the sensing unit being configured to detect a luminance of the light emitting element, which corresponds to the driving current; a gamma calculator configured to receive the driving current and the luminance of the light emitting element from the sensing unit, to calculate a gamma changed based on the driving current and the luminance of the light emitting element, and to provide, to a memory, the gamma changed based on the driving current and the luminance of the light emitting element.

A method of correcting input image data for a display device can include receiving input image data by a controller in the display device, a first portion of the input image data corresponding to a first region of a display panel in the display device and a second portion of the input image data corresponding to a second region of the display panel having a pixel density different than a pixel density of the first region; and correcting, by the controller, at least some of the input image data to generate corrected image data based on at least one white correction value or at least one monochromatic correction value.

Disclosed is a display device comprising: a display panel on which a plurality of pixels of different colors are arrayed; a power supply configured to supply a high-potential driving voltage to the display panel; and a data driver configured to calculate an average picture level of input image data, and generate a data voltage based on a compensation value for compensating for a voltage drop of the high-potential driving voltage based on the calculated APL, wherein the compensation value is independently set for each of the colors.

A display device includes a substrate, pixels on the substrate, and a driving circuit unit connected to the pixels through data lines. The driving circuit unit includes a thermistor having a resistance value which changes according to a temperature of the substrate and a register group in which set values of a dimming ratio corresponding to the temperature are stored, the driving circuit unit controls the pixels to emit light with a first luminance based on the dimming ratio when the temperature based on the resistance value is less than a minimum temperature, the driving circuit unit controls the pixels to emit light with a second luminance based on the dimming ratio when the temperature is greater than the minimum temperature and less than a maximum temperature, and the driving circuit unit stops image display of the pixels when the temperature is greater than the maximum temperature.

A light emitting display device and driving method are disclosed. A light emitting display device includes a display panel including RGBW sub-pixels; a driver configured to drive the display panel; and a timing controller configured to control the driver, wherein W peak luminance derived by the W sub-pixels is higher than a sum of RGB peak luminances derived by the RGB sub-pixels when the display panel displays an image.

A display apparatus includes a first pixel including a light emitting device of a first color connected to a first data line and independently driven and a second pixel including a light emitting device of the first color connected to a second data line adjacent to the first data line and independently driven, wherein the first pixel and the second pixel are included in a first unit pixel, and the first pixel and the second pixel are alternately on-driven in a first period and a succeeding second period.

Provided is a display panel, a source driver that generates a gradation voltage signal based on an image data signal, a timing controller that supplies the image data signal to the source driver, and an illumination drive unit that controls an amount of light of a backlight that illuminates each of a plurality of areas formed by dividing a display screen in the display panel. The source driver or the timing controller calculates feature values of the image data signal corresponding to each of the plurality of areas of the display panel and supplies a dimming data signal representing the amount of light of the backlight according to the feature values of each area to the illumination drive unit. The illumination drive unit controls the amount of light of the backlight for each of the plurality of areas based on the dimming data signal.

A display device includes: a gray converter which adds compensation grays to input grays to provide output grays; a data driver which provides data voltages corresponding to the output grays; and a display panel which includes pixels which receives the data voltages, where the gray converter includes: a voltage domain converter which converts the input grays into conversion grays; and a compensation gray calculator which calculates the compensation grays based on the conversion grays.

A method of driving a display panel includes dividing an input image into a plurality of segments, generating a flicker value of a segment of the plurality of segments, determining whether to compensate the flicker value of the segment or not according to a segment size, compensating the flicker value of the segment based on the segment size, determining a frame rate of the display panel based on the flicker value of the segment and outputting a data voltage to the display panel in the frame rate. The flicker value of the segment is compensated based on the flicker value of the segment and flicker values of segments that are adjacent to the segment.