Abstract: A display device includes a display panel including touch electrodes, and a touch driving circuit including a driving signal output unit that outputs a touch driving signal supplied to the touch electrodes and a touch control unit that controls the driving signal output unit. The touch control unit sets the touch driving signal to swing between a first voltage and a second voltage higher than the first voltage, set the touch driving signal to rise to a third voltage higher than the second voltage and then lower from the third voltage to the second voltage, during a rising edge period, and set the touch driving signal to fall to a fourth voltage lower than the first voltage and then rise from the fourth voltage to the first voltage, during a falling edge period.

Abstract: In a touch inspection device of a display device, the touch inspection device includes: a loading unit on which a display device is loaded; a touch driving circuit configured to drive touch driving electrodes and touch sensing electrodes on a touch sensing unit of the display device, and to detect touch data for touch nodes formed at intersection portions of the touch driving electrodes and the touch sensing electrodes; and an inspection processing circuit configured to calculate deviations of the touch data, to detect touch error data and at least one touch node in which the touch error data occurs by offsetting the deviations of touch data for each of the touch nodes adjacent to each other, and to detect a defect occurrence location for the at least one touch node in which the touch error data occurs.

Abstract: In an inspecting method of a display device, the method includes: receiving an analog voltage from an external device; generating a first touch driving signal having a first potential based on the analog voltage; acquiring first raw data for each channel of touch electrodes by supplying the first touch driving signal to the touch electrodes; generating a second touch driving signal having a second potential higher than the first potential by using a charge pump; acquiring second raw data for each channel of the touch electrodes by supplying the second touch driving signal to the touch electrodes; calculating a ratio between the first raw data and the second raw data; and determining the charge pump is normal, based on the calculated ratio being within a designated range.

Abstract: Provided is a display device including a display layer to display an image and a sensor layer disposed on the display layer to sense an input. The display layer includes a base layer including a first region and a second region adjacent to the first region defined in the base layer, a plurality of pixels disposed in the first region of the base layer and including a cathode, and a power electrode disposed in the second region of the base layer and connected to the cathode at a connection region. The sensor layer includes a plurality of sensing electrode and an inspection line overlapping the connection region.

Abstract: Disclosed is an electronic device including a display layer, and a sensor layer, wherein the sensor layer includes a plurality of first sensing electrodes including one end and the other end, a plurality of second sensing electrodes, a plurality of first trace lines and a plurality of second trace lines connected the plurality of first sensing electrodes, and a plurality of third trace lines connected to the plurality of second sensing electrodes, respectively, wherein the sensor layer operates in a self-touch scheme during a first section of a sensing frame, wherein a driving signal is provided only to the plurality of first trace lines and the plurality of third trace lines during the first section of the sensing frame.

Abstract: Disclosed is an apparatus for inspecting a defect of a display panel. The apparatus for inspecting includes the display panel that displays an image, an input sensor that is disposed on the display panel and senses an input applied from outside, a sensor driving part that drives the input sensor, and an inspection part that is connected with the sensor driving part, sets a frequency of the input sensor to an inspection frequency, and detects the defect of the display panel based on a change in a jitter occurring when the input sensor is driven at the inspection frequency. The inspection frequency includes a harmonic frequency of a driving frequency of the display panel.

Abstract: A touch sensor includes first touch cells disposed in a first touch sensing area, the first touch cells each including a first touch pattern and a first dummy pattern, and second touch cells disposed in a second touch sensing area, the second touch cells each including a second touch pattern and a second dummy pattern. An area of a first dummy pattern area in which the first dummy pattern is disposed is greater than an area of a second dummy pattern area in which the second dummy pattern is disposed.

Abstract: A display device according to an embodiment includes a display layer including pixels located in a display area, a sensor layer including a sensing area overlapping with the display area and unit areas corresponding to touch nodes located in the sensing area, sensor electrodes disposed in the unit areas of the sensor layer, sensor lines electrically connected to the sensor electrodes, and an insulating layer provided exclusively in a subset of the unit areas and disposed on portions of the sensor electrodes.

Abstract: According to an embodiment of the disclosure, a display device includes a sensor driver receiving firmware from an host in which the firmware is stored, the sensor driver including a second memory storing the firmware supplied from the host and initialized when a reset signal is supplied from the host, and a sensing unit for supplying a recovery signal corresponding to an abnormal state of the sensor driver to the host while sensing at least one of an internal voltage and a clock signal of the sensor driver.

Abstract: An electronic device includes a display panel, an input sensor, and a flexible circuit film that includes a sensor controller that drives the input sensor, and an oscillation circuit. The oscillation circuit includes a quartz oscillator connected to the sensor controller, a first electrode connected to a first terminal of the quartz oscillator, and a second electrode disposed in a different layer from the first electrode and that overlaps the first electrode. The first electrode and the second electrode constitute a first capacitor.

Abstract: Disclosed is a display module inspection device including a waveform generator configured to generate a first test signal and to transmit the first test signal to the display module, and a noise sensing unit configured to receive a second test signal from the display module, wherein the second test signal is indicative of a mutual capacitance between a plurality of sensing electrodes of the display module, wherein the noise sensing unit is configured to calculate a capacitance value based on the mutual capacitance and the first test signal, and wherein the capacitance value is indicative of noise.

Abstract: A display device including: a display panel including a display area; and a touch array disposed on the display panel, wherein the display panel includes: a substrate; transistors disposed on the substrate; an insulating layer covering first electrodes and second electrodes of the transistors; light emitting elements disposed on the insulating layer, the light emitting elements being electrically connected to the first electrodes of the transistors; and a thin film encapsulation layer covering the light emitting elements, wherein the display area is divided into a plurality of sub-areas, and wherein the insulating layer has different thicknesses in the plurality of sub-areas.

Abstract: An electronic device includes a display panel, an input sensor disposed on the display panel and including a sensing electrode, a first signal line connected to the sensing electrode, and a second signal line connected to the sensing electrode, and a circuit board electrically connected to the input sensor. The circuit board includes a first group signal line electrically connected to the first signal line, a second group signal line electrically connected to the first group signal line and to the second signal line, a first inspection signal line electrically connected to the first group signal line, and a second inspection signal line electrically connected to the second group signal line.

Abstract: A circuit board includes a base substrate, and a connection structure disposed on the base substrate, and connected to the base substrate by an accessing part. The connection structure includes a first connection electrode, a second connection electrode disposed in a same layer as the first connection electrode, a third connection electrode connected to the first connection electrode on the first connection electrode, and a fourth connection electrode connected to the second connection electrode on the second connection electrode, and disposed in a same layer as the third connection electrode.

Abstract: A display device includes a display unit including pixels. A sensor unit overlaps with the display unit and includes sensors. A sensor driver transmits a driving signal to the sensors, and receives sensing signals corresponding to the driving signal from the sensors. One sensing period includes a first sensing period and a second sensing period. The sensor driver transmits a first driving signal having a first frequency to the sensors in the first sensing period, and transmits a second driving signal having a second frequency different from the first frequency to the sensors in the second sensing period.

Abstract: A display device includes a display panel, and an input sensor disposed on the display panel. The input sensor includes a detection electrode in an active area of the input sensor, a signal line connected to the detection electrode, a slave chip connected to the signal line and overlapping a non-active area adjacent to the active area, a master chip overlapping the non-active area, and a plurality of connection lines connecting the master chip and the slave chip so that a sensed signal of the detection electrode is delivered to the master chip through the slave chip.

Abstract: A display device includes a display panel including pixels, a touch panel including electrodes, a proximity sensor which is adjacent to the touch panel and detects proximity with respect to an object based on a capacitance variation, a display driver which drives the display panel and a touch controller which drives the touch panel and the proximity sensor. Here, the touch controller provides a negative voltage to the proximity sensor when the proximity sensor detects that the object approaches the proximity sensor such that a shortest distance from the object to the proximity sensor is equal to or less than a first reference distance.

Abstract: An input sensor short-circuit inspection method including: setting an inspection frequency for detecting a short-circuit of an input sensor comprising a plurality of electrodes; driving the input sensor in an inspection mode at the set inspection frequency; and detecting the short-circuit of the input sensor based on a capacitance charged between adjacent electrodes among the plurality of electrodes of the input sensor in the inspection mode.

Abstract: A display device includes a display panel including a first surface and a second surface opposite to the first surface, the second surface having a first area and a second area surrounding the first area, a conductive sheet disposed on the second surface of the display panel and including a first conductive line disposed in the first area and extending in a first direction and a conductive layer disposed in the second area, a first circuit board bending from the first surface to the second surface to be connected to a first end of the first conductive line, and a second circuit board spaced apart from the first circuit board in the first direction, the second circuit board bending from the first surface to the second surface to be connected to a second end opposite to the first end of the first conductive line.

Abstract: According to an embodiment of the disclosure, a display device includes a sensor driver receiving firmware from an host in which the firmware is stored, the sensor driver including a second memory storing the firmware supplied from the host and initialized when a reset signal is supplied from the host, and a sensing unit for supplying a recovery signal corresponding to an abnormal state of the sensor driver to the host while sensing at least one of an internal voltage and a clock signal of the sensor driver.