Abstract: A display device includes: a display panel including a display layer and a touch layer; and a touch driving circuit connected to first electrodes and second electrodes of the touch layer. The touch driving circuit is to: determine frequencies of touch driving signals to be supplied to the first electrodes; assign the frequencies to the touch driving signals in an ascending order; determine a first phase of each of the touch driving signals that minimizes a cumulative value of PAPRs while sequentially varying phases of the touch driving signals; update the phases of the touch driving signals from the first phase to a second phase that minimizes the cumulative value of the PAPRs by sequentially varying the first phase of each of the touch driving signals; and output the touch driving signals based on the frequencies assigned to the touch driving signals, respectively, and the second phase.

Abstract: A display device includes a touch array including driving electrodes that extend in a first direction, and that are arranged in a second direction crossing the first direction, and sensing electrodes that extend in the second direction, and that are arranged in the first direction, and a touch driver configured to transmit uplink signals to an external device adjacent to the touch array through the driving electrodes and the sensing electrodes in a third sensing mode, and to sense a touch by applying a mutual driving signal to the touch array in a first sensing mode, the external device being configured to calculate position information using the uplink signals.

Abstract: A sensor device includes: a sensor layer including first sensors, and second sensors forming a capacitance with the first sensors; and a sensor driver configured to transmit driving signals to the first sensors, and receive sensing signals from the second sensors, during a touch sensing period. The sensor driver is further configured to transmit first driving signals to at least some of the first sensors, and second driving signals to at least some of the second sensors, during an object sensing period different from the touch sensing period. During the object sensing period, the first driving signals applied to the first sensors located at an edge of the sensor layer are different from the first driving signals applied to the first sensors located at a central portion of the sensor layer in at least one of a voltage level, frequency, phase, or code.

Abstract: A touch sensor including: a touch sensing area including driving electrodes and sensing electrodes; a driving signal generator which determines phases of driving signals based on a reference code and supplies the driving signals to the sensing electrodes, wherein the driving signals are sine waves; and a touch processor which receives sensing signals according to the driving signals from the sensing electrodes and determines a touch position based on the sensing signals and the reference code, wherein the driving signal generator controls the phases of the driving signals by updating the reference code at a predetermined time point.

Abstract: Provided are a touch sensor and a display device.

Abstract: A touch module includes: a touch array including: a first electrode group including touch electrodes extending in a first direction, and located along a second direction crossing the first direction; and a second electrode group including touch electrodes extending in the second direction, and located along the first direction; and a touch driver to output uplink signals through each of the first electrode group and the second electrode group to an external device adjacent to the touch array, the external device to calculate position information based on the uplink signals. The touch driver is to output the uplink signals by applying touch driving signals to some of the touch electrodes of the first touch electrode group, and at least one synchronization signal to others of the touch electrodes of the first touch electrode group, and at least some of the touch driving signals are synchronized with the synchronization signal.

Abstract: A touch system may include a touch array including touch electrodes, a touch driver configured to apply touch driving signals including different codes to the touch electrodes to thereby transmit uplink signals to objects adjacent to the touch array, at least one sub-host connected to at least one object among the objects through a communication channel, and configured to receive, from the at least one object, position information corresponding to the at least one object through the communication channel, and a main host configured to receive the position information corresponding to the at least one object through the at least one sub-host.

Abstract: A display device, includes: a display panel including pixels; a display driver configured to operate in a unit of a frame period including an active period and a blank period and to display an image on the display panel in the active period of the frame period, based on image data; a touch array on the display panel and including touch electrodes; a touch driver configured to transmit, in an uplink period, uplink signals including different information to an external device in proximity to the touch array through the touch electrodes, and to receive, from the external device, a sensing signal generated by the external device using at least some of the uplink signals; and a touch controller configured to determine the uplink period based on the image data.

Abstract: A sensor device includes: first sensors connected to first sensor lines; second sensors connected to second sensor lines, the second sensors intersecting the first sensors; a sensor transmitter connected to the first sensors through the first sensor lines, the sensor transmitter configured to supply touch driving signals to the first sensors during a touch sensing period; and a sensor receiver connected to the second sensors through the second sensor lines, the sensor receiver configured to receive touch sensing signals from the second sensors during the touch sensing period, wherein the sensor receiver includes a plurality of analog front-ends, and wherein each of the plurality of analog front-ends is connected to at least one of the second sensor lines and at least one of the first sensor lines.

Abstract: A display device including: a touch array including a plurality of touch electrodes; and a touch driver configured to sense a touch adjacent to the touch array, wherein the touch driver transmits, to an external device, uplink signals in which different position information are included through at least some of the touch electrodes in a first time period, and receives, from the external device, position information of the external device on the touch array in a second time period after the first time period, and wherein the position information of the external device is calculated by the external device, using the uplink signals.

Abstract: A touch sensor includes a base layer; a first electrode member that includes a plurality of first electrodes arranged on the base layer and electrically connected to each other along a first direction, each of the first electrodes including a first opening; a second electrode member that includes a plurality of second electrodes arranged on the base layer and electrically connected to each other along a second direction that intersects the first direction; a conductive member that includes a plurality of conductive patterns electrically connected to each other along the first direction; and a proximity detector that is electrically connected to the conductive member and configured to detect proximity of an object by receiving a proximity sensing signal from the conductive member. Each of the conductive patterns is located in the first opening of each of the first electrodes and spaced apart from each of the first electrodes, respectively.

Abstract: A display device includes a display panel including a plurality of pixels, a display driver configured to display an image on the display panel in a frame period unit, to display the image on the display panel in a display period of the frame period, and to not display the image in a blank period of the frame period, a touch panel including touch electrodes, and a touch driver configured to sense a touch adjacent to the touch panel via the touch electrodes, and to transmit an uplink signal to an external device through the touch electrodes in a first time period, the first time period being in the blank period.

Abstract: A touch device includes a touch panel including touch electrodes, and a touch driver adjacent to the touch panel, configured to sense a touch of a user, configured to transmit uplink signals including position information of the touch electrodes to an active pen through at least some of the touch electrodes in a first touch period, and configured to receive a sensing signal including position information of the active pen, which is calculated using the uplink signals, from the active pen in a second touch period after the first touch period.

Abstract: A touch sensor includes a base layer, a first electrode unit, second electrode units, and a first strain gauge. The first electrode unit includes first touch electrodes arranged on the base layer along a first direction and electrically connected to each other along the first direction. The second electrode units are spaced apart from one another along the first direction. Each of the second electrode units includes second touch electrodes arranged on the base layer along a second direction intersecting the first direction and electrically connected to each other along the second direction. Each of the second touch electrodes includes a first opening. The first strain gauge includes first resistance lines electrically connected to each other along the first direction. Each of the first resistance lines is disposed in a respective first opening disposed in a first row among the first openings.

Abstract: A display device includes: a touch panel including a touch area including first touch electrodes and second touch electrodes; and a touch panel driver for providing touch driving signals to the first touch electrodes. The touch panel driver provides the touch driving signals to the first touch electrodes in a first touch sensing period of a first mode, operates in a second mode when the first touch is detected, and provides the touch driving signals to the first touch electrodes disposed in a first row area of the touch area in which the first touch is detected in a second touch sensing period of the second mode.

Abstract: A display device includes: a substrate; a first sensor electrode and a second sensor electrode disposed on the substrate; an antenna electrically separated from the first sensor electrode to transmit and receive radio frequency signals; and an antenna feed line electrically connected to the antenna pattern.

Abstract: A touch sensor includes first touch electrode members disposed on a base layer and located in a sensing area, each of the first touch electrode members including a plurality of first touch electrodes arranged along a first direction, each of the first touch electrodes including a first opening; second touch electrode members disposed on the base layer and located in a sensing area, each of the second touch electrode members including second touch electrodes arranged along a second direction, each of the second touch electrodes including a second opening; and a first pressure sensor disposed on the base layer and including a first strain gauge. A portion of the first strain gauge is located in the second sensing area, and the first strain gauge includes a portion located in the second sensing area and disposed in the same layer as the first touch electrodes and the second touch electrodes.

Abstract: A display device includes: a base substrate; a light emitting element located on the base substrate; a thin-film encapsulation layer located on the light emitting element; touch electrodes located on the thin-film encapsulation layer, each of the touch electrode including an opening; and a strain gauge including: resistance lines located in the openings, respectively, the resistance lines located in the same layer as the touch electrodes and having variable resistance values changed in response to a touch input; a first connection line connecting two resistance lines neighboring each other along a first direction; and a second connection line connecting two resistance lines neighboring each other along a second direction, the second direction intersecting the first direction, wherein the first connection line and the second connection line are located between the thin-film encapsulation layer and the resistance lines.

Abstract: A touch sensor including: a touch sensing area including driving electrodes and sensing electrodes; a driving signal generator which determines phases of driving signals based on a reference code and supplies the driving signals to the sensing electrodes, wherein the driving signals are sine waves; and a touch processor which receives sensing signals according to the driving signals from the sensing electrodes and determines a touch position based on the sensing signals and the reference code, wherein the driving signal generator controls the phases of the driving signals by updating the reference code at a predetermined time point.

Abstract: An input sensing device includes an input sensing panel including driving electrodes and sensing electrodes, a driving signal generator that provides driving signals to the driving electrodes, respectively, and a sensing unit that receives sensing signals according to the driving signals from the sensing electrodes, and determines whether a touch is performed based on the sensing signals. Each of the driving signals includes a sinusoidal wave, and frequencies of at least some of the driving signals are different from each other.