A display device includes a display panel including unit pixel areas and an input sensor including first-line elements and second-line elements defining crossing areas with the first-line elements. First group elements among the first-line elements and the second-line elements are electrically connected to each other to define a first electrode. Second group elements among the first-line elements and the second-line elements are electrically connected to each other to define a second electrode, and the second electrode is insulated from the first electrode while crossing the first electrode. A first angle defined by a first direction and a second direction and a second angle defined in the crossing areas by the first-line elements and the second-line elements to correspond to the first angle are different from each other.

An electronic device including: a display layer including an active area and a peripheral area adjacent to the active area, wherein the active area includes a first area in which an image is displayed; a sensor layer disposed on the display layer and including a plurality of sensing electrodes; a controller configured to generate a change signal in response to a change in a surface area of the first area; a display driver configured to transmit a horizontal synchronization signal to the display layer in response to the change signal; and a sensing driver configured to control at least some of the plurality of sensing electrodes in response to the horizontal synchronization signal.

An electronic device including: a display layer including an active area and a peripheral area adjacent to the active area, wherein the active area includes a first area in which an image is displayed; a sensor layer disposed on the display layer and including a plurality of sensing electrodes; a controller configured to generate a change signal in response to a change in a surface area of the first area; a display driver configured to transmit a horizontal synchronization signal to the display layer in response to the change signal; and a sensing driver configured to control at least some of the plurality of sensing electrodes in response to the horizontal synchronization signal.

Provided herein are a calibration method for a fingerprint sensor and a display device using the calibration method, where, in the calibration method for a fingerprint sensor, the fingerprint sensor includes a substrate, a light-blocking layer located on a first surface of the substrate and having openings formed in a light-blocking mask, a light-emitting element layer located on the light-blocking layer and having a plurality of light-emitting elements, and a sensor layer located on a second surface of the substrate and having a plurality of photosensors; and the calibration method includes generating calibration data through white calibration and dark calibration, and applying offsets to the plurality of photosensors using the calibration data.

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 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.

Disclosed is a portable communication device including a cover window, a display panel including an active area and an inactive area substantially surrounding the active area, the active area including a plurality of pixels and the inactive area including no pixels, a flexible substrate including a first portion connected with the display panel, and a second portion extended from the first portion and bent below a rear surface of the display panel; a display driver integrated circuit (DDI) disposed in the second portion of the flexible substrate, a sensing circuit disposed in the flexible substrate not to be overlapped with the DDI, a plurality of signal lines each electrically connected between the DDI and at least one pixel of the plurality of pixels, and configured to be used to transmit a signal from the DDI to the at least one pixel, and a sensing line disposed in the flexible substrate and the inactive area except the active area and including a first ending portion which is electrically connected with a power line, and a second ending portion which is electrically connected with at least one signal line of the plurality of signal lines via the sensing circuit.

The present application discloses a driving method for a display panel, a driving device thereof and a display device. The driving method includes: performing square wave conversion on drive data received by each channel to obtain data line signals, where square wave signals generated by the conversion of different gray scales in the corresponding drive data have an identical high level, and the time of low level output is different.

A color shift compensation method, a color shift compensation system and a display panel are provided. The color shift compensation method includes: accumulating actual display time of a display panel; determining whether or not the actual display time reaches a preset cumulative display time threshold; and in a case where the actual display time reaches the preset cumulative display time threshold, driving the display panel to display according to compensated adjustment voltages that are pre-stored, and in a case where the actual display time does not reach the preset cumulative display time threshold, driving the display panel to display according to current adjustment voltages that are pre-stored.

A display device includes pixels, and each pixel is connected between a first electrode or a second electrode of a driving transistor and a bias line, includes a bias transistor configured to transfer a bias voltage applied from the bias line to the first electrode or the second electrode of the driving transistor during a bias period. Bias voltages applied to the pixels emitting light of different colors are different from each other.