A display device includes an afterimage compensator generating output grayscales by applying at least one of first and second weights to input grayscales when the input grayscales correspond to a still image, and pixels displaying an image based on the output grayscales. The afterimage compensator applies the first weight having an initial value greater than 1 to the input grayscales of a first group, and converges the first weight to 1, and applies the second weight having initial values less than 1 to the input grayscales of a second group, and converges the second weights to 1.

A display device including pixels; a controller configured to generate first compensation data based on first sensing data with respect to threshold voltages of driving transistors of the pixels which are sensed during a first sensing period, to generate second compensation data based on second sensing data with respect to mobilities of the driving transistors of the pixels which are sensed during the first sensing period, to generate third compensation data based on third sensing data with respect to mobility change amounts of the driving transistors of the pixels which are sensed using image data for sensing compensated based on the first and second compensation data during a second sensing period, and to compensate input image data based on the first, second, and third compensation data to generate compensated image data; and a data driver configured to provide data voltages to the pixels based on the compensated image data.

Provided are a driver chip, a display screen and a display device. The driver chip is configured to drive a silicon-based display screen, and the driver chip is composed of a bridge chip and a screen driver chip. A signal interface circuit of a first signal processing circuit in the bridge chip receives video signals of each frame of picture. A drive controller controls video signals of P pixels among the video signals of one frame of picture to be output at a first preset transmission speed to a second signal processing circuit of the screen driver chip each time. A signal processor of the second signal processing circuit in the screen driver chip converts the video signals of all of the P pixels into data drive signals and outputs at a second preset transmission speed data drive signals of Q pixels in one frame of picture to a data processing circuit each time. The data processing circuit is configured to convert the data drive signals into display driving signals, sequentially output the display driving signals to pixels in each row, and control each pixel.

A display device comprises a display panel including a plurality of data lines, a plurality of gate lines, a plurality of subpixels, and a plurality of reference voltage lines electrically connected with the plurality of subpixels, each of the plurality of subpixels including a driving transistor and a light emitting element and a gate driving circuit configured to supply a gate signal to the plurality of gate lines, wherein there are three or more periods during which a voltage change slope of a reference voltage line electrically connected with any one subpixel of the plurality of subpixels is decreased and then restored while the gate driving circuit applies the gate signal of a turn-on level voltage to the any one subpixel, thereby reducing the voltage level of the high-potential driving voltage applied to the display panel, to the minimum.

An electronic device is provided. The electronic device includes a display, a camera module disposed under the display, and a processor configured to control the display and the camera module, and a memory operably connected to the processor. The memory may store instructions that, when executed, cause the processor to receive display metrics information that is changed according to the state of the display, produce an under-display camera area corresponding to a position of the camera module, based on the changed display metrics information, produce a logical cutout of the under-display camera area, and update the layout of an application to be executed, based on the cutout.

Disclosed is a display device which includes a display panel that includes a plurality of pixels and includes a display area displaying an image, a panel controller that receives an external input signal from an external source and generates a control signal for dividing the display area into a first area and a second area which is disposed adjacent to the first area based on the external input signal, and an instrument module that stretches the first area and the second area of the display panel in response to the control signal. The number of the pixels per unit area in the first area is different from the number of the pixels per unit area in the second area.

An image display system includes a graphic processor which generates an image signal, a control signal, and a variable frequency signal; and a display device which displays an image at a frame frequency corresponding to the variable frequency signal from the graphic processor. The display device includes pixels connected to emission control lines, data lines, and scan lines; a controller which provides reference data including information on reference cycles, which are cycles in which an emission control start signal is output, to the graphic processor, outputs the emission control start signal based on the control signal, and adjusting an output timing of a scan start signal based on the variable frequency signal; an emission driver which supplies emission control signals to the emission control lines based on the emission control start signal; and a scan driver which supplies scan signals to the scan lines based on the scan start signal.

An electronic shelf label, which comprises: a display unit, which is designed for displaying image content, and a communication module, which is designed for wireless communication for the purpose of receiving image data, which represent the image content, and for transferring the image data to the display unit,
characterized in that a detector unit is provided, which is designed for detecting an incorrect positioning, which differs from a desired positioning, of the electronic shelf label, and for outputting an action signal when the incorrect positioning is detected, and in that the electronic shelf label is designed to change the image content when the action signal is present.

A four-way dual scanning electronic display board capable of scan control, whereby, in order to provide drive control, an LED module arrangement method, and processing for each LED pixel dot (R, G, B), which are for easily enabling a high definition image, pixel display dots of an LED module are controlled by processing image display dots of the module by means of a four-way method by an automatic image switching device through the display control of SCU image switching, in order to display a high definition image through the four-way control of each image dot (R, G, B) pixel, and thus high resolution image quality may be enabled and displayed.

In a display controller, a standard information acquisition unit 76-acquires at least one of a luminance characteristic and a color gamut of a standard display panel. A luminance information storage unit of an output adjustment unit stores a measurement value of a luminance characteristic of a panel of a displaying destination. A luminance range adjustment unit gradually adjusts a luminance range for an image to be a luminance range same as that of the standard display panel. A color gamut information storage unit stores a measurement value of a color gamut of the panel of the displaying destination. A color adjustment unit adjusts a pixel value of an image on the basis of the color gamut such that the image is displayed in a color same as that on the standard display panel.