Abstract: A touch sensor including a substrate including an active area and a non-active area, a plurality of first electrodes extending in first direction on the active area, a plurality of second electrodes extending in a second direction crossing the first direction on the active area, a plurality of third electrodes including electrode portions disposed in the first electrodes, respectively, being separated from the first electrodes, and extending in the first direction on the active area, and a sensing circuit including a plurality of signal receivers receiving sensing signals from the first electrodes, respectively, in which each of the signal receivers includes first and second input terminals connected to a pair of first and third electrodes corresponding to each other, respectively, and outputs a signal corresponding to a voltage difference between the first and second input terminals.

Abstract: Provided are a touch sensor and a display device. The touch sensor includes a base layer, first electrode members arranged on the base layer in a first direction and spaced apart from one another in a second direction, each first electrode members including a first opening and first touch electrodes, second electrode members arranged on the base layer in the second direction and spaced apart from one another in the first direction, each second electrode members including a second opening and second touch electrodes, a first strain gauge disposed in a first electrode row, a second strain gauge disposed in a first row, a first signal line connected to the first strain gauge, a second signal line connected to the first strain gauge, a third signal line connected to the second strain gauge and the second signal line, and a fourth signal line connected to the second strain gauge.

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: Provided are a force sensor module and a display device including the same. The display device includes a display panel, and a force sensor module overlapping the display panel, and including a circuit board, and the force sensor partially attached to the circuit board, and including an attachment portion having a surface facing the circuit board and attached to the circuit board, and a non-attachment portion having a surface spaced apart from the circuit board.

Abstract: A display device with a display panel including a display area and a plurality of pixels arranged in the display area, a photosensor layer including a sensing area overlapping the display area and a plurality of photosensors arranged in the sensing area, a light-guiding layer arranged between the display panel and the photosensor layer, the light-guiding layer includes a plurality of light-transmission holes corresponding to the plurality of photosensors, wherein the light-guiding layer includes a transparent tube bundle comprising a plurality of transparent tubes forming the light-transmission holes.

Abstract: In an embodiment, a touch sensor may include a sensor part including a first electrode and a second electrode, a signal receiving part, an amplifier circuit part connected between the second electrode and the signal receiving part, an analog-to-digital converter part configured to output a digital signal corresponding to a voltage difference between input terminals, and a processor configured to detect a touch input from the sensor part in response to the digital signal when operating in a first mode, and to output a gain control signal for calibrating a gain value of the amplifier circuit part in response to the digital signal when operating in a second mode.

Abstract: A display device with a display panel including a display area and a plurality of pixels arranged in the display area, a photosensor layer including a sensing area overlapping the display area and a plurality of photosensors arranged in the sensing area, a light-guiding layer arranged between the display panel and the photosensor layer and configured to include a plurality of light-transmission holes corresponding to the photosensors, respectively, and a light-condensing layer arranged between the display panel and the photosensor layer to overlap the light-guiding layer.

Abstract: A display device with a display panel including a display area and a plurality of pixels arranged in the display area, a photosensor layer including a sensing area overlapping the display area and a plurality of photosensors arranged in the sensing area, a light-guiding layer arranged between the display panel and the photosensor layer and configured to include a plurality of light-transmission holes corresponding to the photosensors, respectively, and a light-condensing layer arranged between the display panel and the photosensor layer to overlap the light-guiding layer.

Abstract: There is provided a display device including a high-sensitivity touch sensor. A display device includes: pixels arranged in a display region; sensing electrodes arranged in a sensing region; sensing lines coupled to the respective sensing electrodes; a noise detection electrode disposed on the same layer as the sensing electrodes; sensing channels each including a first input terminal coupled to any one of the sensing electrodes and a second input terminal coupled to the noise detection electrode, the sensing channels each generating an output signal corresponding to a voltage difference between the first and second input terminals; and a processor detecting a touch input, using the output signals of the sensing channels.

Abstract: In an embodiment, a touch sensor may include a sensor part including a first electrode and a second electrode, a signal receiving part, an amplifier circuit part connected between the second electrode and the signal receiving part, an analog-to-digital converter part configured to output a digital signal corresponding to a voltage difference between input terminals, and a processor configured to detect a touch input from the sensor part in response to the digital signal when operating in a first mode, and to output a gain control signal for calibrating a gain value of the amplifier circuit part in response to the digital signal when operating in a second mode.

Abstract: A display device that senses externally applied pressure and a change in the resonant frequency of a piezoelectric element. The display device includes a piezoelectric sensor layer including a piezoelectric sensor; and a display panel disposed on the piezoelectric sensor layer. The piezoelectric sensor includes: a piezoelectric element having a first electrode, a second electrode facing the first electrode, and a piezoelectric material disposed between the first electrode and the second electrode; an alternating current (AC) voltage generator connected to the first electrode and applies a voltage having a resonance frequency to the piezoelectric element. A sensing circuit connected to the second electrode is configured to measure a change in impedance of the piezoelectric element.

Abstract: A touch sensor includes a sensor unit having a first region including at least one pair of a first electrode and a second electrode, and a second region including at least two pairs of first electrodes and second electrodes, a plurality of sensing channels each including first and second input terminals, wherein the first input terminals of the sensing channels are connected to different ones of the first electrodes, an amplifying circuit connected between the second input terminals of the sensing channels and the second electrodes, and an input control unit connected between the amplifying circuit and the second electrodes, the input control unit including a first resistor connected to the second electrode of the first region, and a second resistor commonly connected to the second electrodes of the second region.

Abstract: 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.

Abstract: A display device with a display panel including a display area and a plurality of pixels arranged in the display area, a photosensor layer including a sensing area overlapping the display area and a plurality of photosensors arranged in the sensing area, a light-guiding layer arranged between the display panel and the photosensor layer and configured to include a plurality of light-transmission holes corresponding to the photosensors, respectively, and a light-condensing layer arranged between the display panel and the photosensor layer to overlap the light-guiding layer.

Abstract: A touch sensor includes a first electrode, a second electrode, and a sensing channel. The first electrode includes first electrode cells arranged in a first direction, a first connection portion connecting the first electrode cells in the first direction and a first opening disposed in at least one of the first electrode cells. The second electrode includes an electrode portion disposed in the first opening. The electrode portion is disposed on a same layer as the first electrode cells and separated from the first electrode. The sensing channel includes a first terminal and a second terminal. The first terminal is connected to the first electrode. The second terminal is connected to the second electrode.

Abstract: A touch sensor includes a sensor unit including a plurality of first electrodes in an active area spaced apart from each other, and at least one second electrode, a plurality of sensing channels respectively coupled to one of the first electrodes, and each sensing channel including a reference node having a variable voltage coupled to the at least one second electrode, and a processor configured to receive output signals from the sensing channels, and detect a touch input based on the output signals. The plurality of sensing channels may be configured to supply driving signals to respective first electrodes during a first period, receive sensing signals from respective first electrodes during a second period, and generate the output signals corresponding to the sensing signals received from respective first electrodes based on potentials of the respective reference nodes. A method of driving a touch sensor also is disclosed.

Abstract: In an embodiment, a touch sensor may include a sensor part including a first electrode and a second electrode, a signal receiving part, an amplifier circuit part connected between the second electrode and the signal receiving part, an analog-to-digital converter part configured to output a digital signal corresponding to a voltage difference between input terminals, and a processor configured to detect a touch input from the sensor part in response to the digital signal when operating in a first mode, and to output a gain control signal for calibrating a gain value of the amplifier circuit part in response to the digital signal when operating in a second mode.

Abstract: A touch sensor including a substrate including an active area and a non-active area, a plurality of first electrodes extending in first direction on the active area, a plurality of second electrodes extending in a second direction crossing the first direction on the active area, a plurality of third electrodes including electrode portions disposed in the first electrodes, respectively, being separated from the first electrodes, and extending in the first direction on the active area, and a sensing circuit including a plurality of signal receivers receiving sensing signals from the first electrodes, respectively, in which each of the signal receivers includes first and second input terminals connected to a pair of first and third electrodes corresponding to each other, respectively, and outputs a signal corresponding to a voltage difference between the first and second input terminals.

Abstract: An organic light emitting display and a driving method of the organic light emitting display capable of reducing or minimizing power consumption. The driving method includes setting a number of selection times constituting one frame, and setting a number of unit times constituting the one frame. Each of the unit times includes j (j is a natural number of 2 or more) of the selection times. Scan signals are non-sequentially supplied to scan lines during each of the unit times. The one frame includes a number of subframes. Data signals for ones of the subframes having a same length are supplied corresponding to i (i is a natural number of 2 or more) consecutive ones of the scan signals.

Abstract: A display device may include a display panel, a sensor unit, and a touch driver. The sensor unit is provided on the display panel and may output a sensing signal corresponding to a touch input. The sensor unit may include a first electrode and may include a conductive layer provided between the display panel and the first electrode and spaced from the first electrode. The touch driver may include a signal receiver.