A touch detection method, suitable for a touch display panel including multiple sensing pads, is disclosed. The sensing pads are divided into groups and each of the groups includes at least two columns of the sensing pads. The touch detection method includes following steps. In a first mode, the sensing pads are scanned group-by-group for detecting whether a touch event occurs on a touch identified group. In a second mode, the sensing pads are scanned column-by-column to identify a touch position of the touch event.

The present disclosure relates to a touch panel. The touch panel includes a plurality of pixel units, and each of the plurality of pixel units includes a pixel circuit. The pixel circuit of each of the plurality of pixel units includes a driver, a writer, a power supply, a reset module, a controller and a compensator. The power supply includes a fourth switching transistor and a second capacitor. A gate of the fourth switching transistor is input with a light emitting control signal, and a source of the fourth switching transistor is input with a power supply signal. The second capacitor includes a first electrode connected to the driver; and a second electrode input with the power supply signal.

A display device including: a pixel part including pixels; a sensor part overlapping the pixel part and including sensors; and a sensor driver that transmits a sensing signal to p sensors in a first area of the sensor part in a first mode, transmits the sensing signal to q sensors in the first area in a second mode, and transmits the sensing signal to r sensors in the first area in a third mode, wherein p is an integer greater than 0, q and r are integers greater than p, and the sensor driver sets a sensing frequency, the first area, the number of sensing times per sensing frame period, whether or not the sensor driver is synchronized with a timing signal of the pixel part, or a voltage level of the sensing signal, to be different in the second mode and the third mode.

A display device is provided and includes scanning and signal lines; switch electrically coupled to scanning and signal lines; pixel electrode electrically coupled to switch and opposed to drive electrode; first and second display periods, and detection period between first and second display periods, wherein during first and second display periods, common voltage is applied to drive electrode, scanning signal is applied to scanning line and switch, pixel signal is applied to pixel electrode through signal line and switch, during detection period, AC drive signal or pulse drive signal is applied to drive electrode, and scanning signal is not applied to scanning line.

A display device includes at least one touch sensor configured to sense a touch in response to a touch signal, a display panel including the at least one touch sensor and configured to operate in one of a display mode and a touch-sensing mode, a first circuit and a second circuit. The first circuit is configured to supply at least one of a first touch signal and a second touch signal to the at least one touch sensor during the touch-sensing mode, to yield at least one supplied signal, the first touch signal being different from the second touch signal. The second circuit is configured to control signal lines corresponding to the at least one touch sensor to receive a signal corresponding to the at least one supplied signal or to be in an electrically open state.

A display device including: pixels; a data driver configured to start outputting data voltages to at least some of the pixels at a first time during a horizontal period, and end outputting the data voltages at a second time during the horizontal period; sensors; and a sensor driver configured to change a logic level of a sensing signal of at least some of the sensors at a third time different from the first time and the second time during the horizontal period, wherein at least one of the first time, the second time, and the third time is changed according to a number of times a logic level of a vertical synchronization signal is changed while a logic level of a horizontal synchronization signal is maintained.

An electronic device, detects a touch input. After a latency period, the device delivers to an application a sequence of input events that represent the touch input, including, in sequence: a first input event that represents the touch input at a first input time and is delivered at a first delivery time, a second input event that represents the touch input at a second input time and is delivered at a second delivery time, and a third input event that represents the touch input at a third input time and is delivered at a third delivery time, a time interval between the second input time and the second delivery time is smaller than a time interval between the first input time and the first delivery time, and a time interval between the third input time and the third delivery time is smaller than the time interval between the second input time and the second delivery time.

A display device includes a display region and a sensing region overlapping with each other, a plurality of pixels in the display region, a plurality of first electrodes arranged in a first direction in the sensing region, a plurality of second electrodes arranged in a second direction in the sensing region, and a driving circuit including a display driver for driving the pixels corresponding to image data, and a touch driver for sensing a touch input using a sensing signal input from each of the first electrodes, and configured to supply a noise compensation signal corresponding to the image data to the second electrodes during a period in which the pixels are driven.

An electronic device according to an embodiment comprises: a display; a display-driving integrated circuit (IC) set to apply one or more driving signals to the display; a touch sensor including a plurality of electrodes; and a touch sensor IC configured to check an input position on the touch sensor, wherein the touch sensor IC is configured to: acquire, from the display-driving IC, a first vertical synchronization signal from among the one or more driving signals, provide a plurality of first measurement signals corresponding to a first phase at intervals of a first duration to at least a first portion of electrodes among the plurality of electrodes based on the acquisition of the first vertical synchronization signal, and, after providing the plurality of first measurement signals, provide a plurality of second measurement signals corresponding to a second phase, different from the first phase, at intervals of the first duration to at least a second portion of electrodes among the plurality of electrodes, wherein at least a portion of the application period of the plurality of first driving signals and the plurality of second driving signals can overlap with at least a portion of the application period of the one or more driving signals.

A display device, comprising a display panel and a touch panel. The display panel comprises a plurality of scan lines. The plurality of scan lines are respectively classified into a plurality of scan areas, and the display panel is configured to sequentially scan the plurality of scan areas through the plurality of scanning lines. The touch panel is electrically connected to the display panel, and is configured to receive a touch signal. During a first frame period, when a position of the touch signal corresponds to one of plurality of the scan areas, the display panel is configured to start scanning the plurality of scan areas from the one of the plurality of the scan areas to display an image of the plurality of scan areas.