A display device includes: a plurality of pixels; a first pixel unit comprising a first portion of the plurality of pixels; a second pixel unit comprising a second portion of the plurality of pixels; and a data driver configured to supply a data voltage to the first pixel unit and the second pixel unit, wherein the data driver is configured to generate a data voltage to be supplied to the first pixel unit based on different gamma voltages even when the same grayscale is expressed according to a driving method, and the second pixel unit is configured to be driven or not driven according to the driving method.

A method for improving image display quality, including: dividing a total gray scale range of a gamma voltage curve of a display apparatus to obtain gray scale ranges; obtaining data of gray scales of frame(s) of image to be displayed by the display apparatus, and calculating a ratio of data of gray scales in each gray scale range; adjusting a division value of a gamma voltage range corresponding to each gray scale range of the gamma voltage curve according to calculated ratios, so that a division value of a gamma voltage range corresponding to a gray scale range with a maximum ratio is less than a division value of a gamma voltage range corresponding to any remaining gray scale range; and outputting gamma voltages corresponding to the data of gray scales of the frame(s) of image to be displayed according to the adjusted gamma voltage curve.

A reference voltage generation circuit is provided. The reference voltage generation circuit reduces a potential difference between a reference voltage less than a first data driving voltage and a data driving voltage, namely, the potential difference between a lower reference voltage and the data driving voltage is reduced. Therefore, the power loss of a voltage dividing module is reduced to prevent the problems of reduced reliability and reduced service life of a drive circuit board due to excessive internal temperature.

A gamma voltage correction method, a gamma voltage correction device, and a display device are provided. The gamma voltage correction method is performed on a final confirmed gamma voltage curve of a current frame period in a display stage of a next frame period. Therefore, changes in a gamma voltage curve of the display device may follow changes in frequency, i.e., the frequency and the gamma voltage curve may be consistent. As a result, a brightness difference of the display device caused by changes in frequency may be reduced and flickering may be prevented.

Embodiments of the present disclosure provide a gamma voltage correction method and device, and a display device, wherein a candidate refresh rate last determined in a current frame period of a display panel is used as a target refresh rate, and a gamma voltage corresponding to the target refresh rate is used as a gamma voltage at a display phase in a next frame period of the display panel to perform brightness correction, so that flashing of the display panel during refresh rate switching is prevented, and storage resources are saved.

A display device according to an exemplary embodiment includes: a display panel including a plurality of pixels; a plurality of source boards connected to the display panel; a power control board connected to the source board and configured to supply a power voltage to the plurality of pixels; and a control board configured to control an output of voltages supplied to the source board according to a control signal transmitted by the power control board.

Disclosed is an electronic device including a display panel displaying an image, a source driver supplying a source voltage to the display panel, and a display driver integrated circuit (DDI) including a timing controller controlling the source driver. The timing controller may be configured to identify information associated with a luminance of the image and to set a source bias current for controlling a slew rate of the source voltage based on the luminance of the image. Besides, various embodiments as understood from the specification are also possible.

A micro-light emitting diode (micro-LED) display backplane includes a plurality of macro-pixels. Each macro-pixel includes: a contiguous two-dimensional (2-D) array of bitcells storing display data bits for driving a set of micro-LEDs of a 2-D array of micro-LEDs; and drive circuits configured to generate, based on the display data bits stored in the contiguous 2-D array of bitcells, pulse-width modulated (PWM) drive signals for driving the set of micro-LEDs of the 2-D array of micro-LEDs. In one example, the plurality of macro-pixels is grouped into a plurality of sub-arrays, where each sub-array of the plurality of sub-arrays includes a set of macro-pixels and a local periphery circuit next to the set of macro-pixels. The local periphery circuit includes, for example, a buffer, a repeater, a clock gating circuit for gating an input clock signal to the sub-array, and/or a sub-array decoder for selecting the sub-array.

The present disclosure provides a display device that includes a preprocessor, a controller, and a display panel. The preprocessor includes an area determiner outputting area data, a modulator outputting modulated data, and a synthesizer converting first image data and outputting second image data including the area data and the modulated data.

The present disclosure relates to an image processing apparatus. The image processing apparatus according to an embodiment of the present disclosure includes a display having a plurality of pixels, and a controller, wherein the controller: calculates an average luminance value of a first frame of an image based on RGB data corresponding to the image; sets a criterion for determining an output level of the plurality of pixels according to the average luminance value of the first frame; controls the display to output a first frame group, including the first frame, according to the set criterion; calculates an average luminance value of a second frame of the image according to a predetermined cycle; resets a criterion for determining the output level of the plurality of pixels according to the average luminance value of the second frame; and controls the display to output a second frame group, including the second frame, according to the reset criterion. Accordingly, by dynamically changing the criteria for determining the output level of the plurality of pixels included in the display based on the luminance value of each frame of the image, the image may be displayed more clearly. Various other embodiments are possible.