The disclosure includes multiple data drivers provided for each predetermined number of data lines. Each data driver receives an image signal; generates, based on the image signal, a positive gradation data signal and a negative gradation data signal; outputs one of the positive and negative gradation data signals to one of a first and second data line groups of a display panel; and outputs the other of the positive and negative gradation data signals to the other of the first and second data line groups. The data driver shifts a phase of the negative gradation data signal in a direction delayed with respect to the positive gradation data signal, and controls a slew rate of an output amplifier for outputting the positive gradation data signal to be lower than that of an output amplifier for outputting the negative gradation data signal.

Methods and apparatuses relating to controlling an emission of a display panel. In one embodiment, a display driver hardware circuit includes row selection logic to select a number of rows in an emission group of a display panel, wherein the number of rows is adjustable from a single row to a full panel of the display panel, column selection logic to select a number of columns in the emission group of the display panel, wherein the number of columns is adjustable from a single column to the full panel of the display panel, and emission logic to select a number of pulses per data frame to be displayed, wherein the number of pulses per data frame is adjustable from one to a plurality and a pulse length is adjustable from a continuous duty cycle to a non-continuous duty cycle.

An electronic device and method are disclosed. The electronic device includes a housing, a flexible display having a variable display area including: a visible first region, and a second region that is stowable/extendable, a display driver integrated circuit (DDI), and a processor. The processor implements the method, including: when the housing is disposed in a first state in which the second region is stowed, control the flexible display to display a user interface (UI) screen through the first region based on a first driving frequency and a first light emission frequency, control the flexible display to display a compensation image through the second region based on a second driving frequency and a second light emission frequency, wherein the second driving frequency is equal to or less than the first driving frequency, and the second light emission frequency is less than the first light emission frequency.

A method of operating a display system consisting of a plurality of light emitting diodes (LEDs) is disclosed. The LEDs are arranged in a plurality of groups and an integrated circuit provides power to the LEDs through a plurality of output pins connected to respective groups. The integrated circuit selectively determines the states of the output pins to illuminate the groups of LEDs in a repeating sequence such that each group is illuminated for a time dependent on a number of groups and a compensation factor. The compensation factor is dependent on at least a number of LEDs in the group.

A display device includes a plurality of pixels. One of the pixels includes a light emitting diode and a driving circuit coupled to the light emitting diode. A display frame period includes at least two emission periods. The light emitting diode emits light according to a data signal including a gray level in each of the at least two emission periods.

Provided are a pixel having two contacting points and an operating method of the pixel. The pixel includes a positive power terminal and a negative power terminal which are related to power required for driving of a pixel driving circuit unit driving a plurality of light-emitting elements, wherein the positive power terminal is connected to a data driving circuit, and the negative power terminal is connected to a scan driving circuit. The pixel may be driven according to a potential difference between a signal output from the data driving circuit and a signal output from the scan driving circuit.

The present disclosure relates to systems and methods to control brightness and color output in foldable displays. A foldable electronic display may, when folded, includes a first part in a first plane and a second part in a second plane different from the first plane. A brightness or color setting of the first part may be controlled independently of a brightness or color setting of the second part.

Disclosed are a grayscale compensation method and apparatus, and a display device. The grayscale compensation method includes obtaining a basic grayscale of each compensation device; obtaining an equivalent lighting duration of the each compensation device, where the equivalent lighting duration is a duration of lighting the compensation device with a preset grayscale obtained by converting an actual lighting duration of the compensation device; if the equivalent duration reaches a preset time point, obtaining a grayscale compensation parameter corresponding to the compensation device by searching a table according to the preset time point and the basic grayscale, and performing grayscale compensation on a sub-pixel in the compensation device according to the grayscale compensation parameter and the basic grayscale.

A backlight brightness control method, a backlight brightness control device, and a display equipment are provided. By using a constant current integrated circuit to input constant current to backlight sources in backlight partitions, uniformity of backlight brightness is allowed to be improved. By determining a target peak current inputted to the backlight sources in the backlight partitions according to a grayscale level of partition images, not only can the backlight brightness required by a high grayscale level be ensured, but fine adjustment of the backlight brightness under a low grayscale level can also be ensured.

The disclosure provides a display device and a driving method thereof. The display device includes a light emitting module and a display panel. The light emitting module includes an optical sensor and multiple light emitting diodes (LEDs). The LEDs are adjacent to the optical sensor. The LEDs emit red, green, and blue light. The LEDs dynamically convert brightness of the red, green, and blue light. The display panel is disposed on the light emitting module. The display device of the disclosure may achieve a full-screen display or have a higher resolution.