Abstract: A motion trail update method includes: receiving first pose information for a target device transmitted by a first sensor at a first frequency; selecting second pose information meeting a preset condition from a second pose information queue as target second pose information to obtain a target second pose information set; performing trail smoothing on adjacent pose information and the first pose information by using the target second pose information set to obtain a smooth pose information sequence; performing mapping on each piece of smooth pose information in the smooth pose information sequence to obtain a target pose information sequence of a virtual object, corresponding to the target device, in a virtual space; and updating a motion trail of the virtual object in the virtual space.

Abstract: A display with a curved portion is provided. The display includes a capacitive sensor mesh layer including a plurality of cells, wherein at least a cell of the plurality of cells includes at least one cell face that has a discontinuity in the cell face based at least in part on a position of the cell on the curved portion.

Abstract: According to one aspect, a trackpad includes: a substrate; a stiffener plate; a circuit board between the substrate and the stiffener plate, the circuit board comprising position detecting circuitry configured to detect a position of an object adjacent the substrate, the circuit board including an inductive element; a grounding element that electrically connects the stiffener plate and the circuit board to each other; and force sensing circuitry configured to detect force applied to the substrate, the force detected using the inductive element.

Abstract: An e-pen includes e-pen sensor electrodes (including a first and a second e-pen sensor electrode) and drive-sense circuits (DSCs) (including a first DSC and a second DSC. The first DSC drives a first e-pen signal having a first frequency via a first single line coupling to the first e-pen sensor electrode and simultaneously senses, via the first single line, the first e-pen signal. Based on e-pen/touch sensor device interaction, the first e-pen signal is coupled into at least one touch sensor electrode of the touch sensor device. The first DSC process the first e-pen signal to generate a first digital signal representative of a first electrical characteristic of the first e-pen sensor electrode. Similarly, the second DSC drives a second e-pen signal having a second frequency via a second single line coupling to the second e-pen sensor electrode and simultaneously senses, via the second single line, the second e-pen signal.

Abstract: A touch apparatus according to an exemplary embodiment of the present invention includes: a touch sensor; and a touch controller that operates in a resonance driving mode during which a first driving signal is output for generation of a resonance signal of a stylus pen to the touch sensor and an idle mode during which the driving signal output to the touch sensor is stopped, and obtains first touch coordinate information from a detection signal input from the touch sensor during the resonance driving mode.

Abstract: A touch sensing device that compensates for a phase error of a downlink signal transmitted/received between a display device and an active pen. The touch sensing device includes a differential amplifier configured to amplify a difference between a first accumulated capacitance value for a first touch group and a second accumulated capacitance value for a second touch group, based on a first downlink signal generated during a pre-driving section, an ADC configured to convert an output signal of the differential amplifier into digital data, and a phase error compensator configured to detect an edge of the first downlink signal based on a difference value between current and previous values of the digital data and compensate for a phase error of the first downlink signal using the edge of the first downlink signal and an edge of an internal timing signal.

Abstract: An apparatus (73) for processing signals from a touch panel (10) is described. The touch panel (10) includes a layer of piezoelectric material (16) disposed between a number of sensing electrodes (14, 20) and at least one common electrode (15). The apparatus (73) includes a capacitive touch controller (69) for connection to the sensing electrodes (14, 20). The apparatus (73) also includes a switch network (74) including a number of inputs for connection to some or all of the sensing electrodes (14, 20), and an output connected to system ground or a common mode voltage (VCM). The apparatus (73) also includes a second circuit (24, 44) for connection to the at least one common electrode (15) and configured to generate, based on signals received from the at least one common electrode, a second pressure signal (30) indicative of a total pressure applied to the touch panel (10).

Abstract: A touch control device and a stylus are provided. The stylus includes a transceiver and a controller. The controller generates a plurality of data items based on a request signal received by the transceiver, and generates at least one status data signal in each data item according to at least one operation status of the stylus. In particular, the controller makes the transceiver select at least one selected time period in a plurality of first time periods to transmit the at least one status data signal to a host and transmit at least one normal data signal in at least one other time period other than the at least one selected time period. In particular, a frequency of the at least one status data signal is different from a frequency of the at least one normal data signal.

Abstract: An e-pen includes e-pen sensor electrodes (including a first and a second e-pen sensor electrode) and drive-sense circuits (DSCs) (including a first DSC and a second DSC. The first DSC drives a first e-pen signal having a first frequency via a first single line coupling to the first e-pen sensor electrode and simultaneously senses, via the first single line, the first e-pen signal. Based on e-pen/touch sensor device interaction, the first e-pen signal is coupled into at least one touch sensor electrode of the touch sensor device. The first DSC process the first e-pen signal to generate a first digital signal representative of a first electrical characteristic of the first e-pen sensor electrode. Similarly, the second DSC drives a second e-pen signal having a second frequency via a second single line coupling to the second e-pen sensor electrode and simultaneously senses, via the second single line, the second e-pen signal.

Abstract: A touch sensing device employed in an electronic device having a housing including a plurality of touch members, includes a touch sensing unit disposed in the housing and including a plurality of touch sensors configured to perform touch sensing based on a touch applied to any one or any two or more of the plurality of touch members; an oscillation circuit unit configured to generate a plurality of touch sensing signals based on the touch sensing; and a signal processor configured to perform a slide mode, when any one of the plurality of touch sensing signals is a slide mode start touch, to determine whether a slide touch pattern input based on the plurality of touch sensing signals is a preset slide touch pattern.

Abstract: A touch panel includes a cover panel, a touch sensor substrate in which a sensor electrode for detecting a position of a pointing object is disposed in a detection region, an adhesive agent being disposed between the cover panel and the touch sensor substrate, a first electrode being disposed in an outer region of a region corresponding to the detection region of a second surface of the cover panel, and a second electrode being disposed to overlap a part of the first electrode in plan view in an outer region of the detection region of a third surface of the touch sensor substrate.

Abstract: The disclosure discloses a driving method of a touch electronic device. The driving method includes the following steps. A panel including a first substrate, a second substrate, a first sensing electrode, and a second sensing electrode is provided. The first sensing electrode is disposed on the first substrate, and the second sensing electrode is disposed on the second substrate and is located between the second substrate and the first sensing electrode. A touch sensing mode is performed in a frame period, and execution of the touch sensing mode includes performing identical driving on the first sensing electrode and the second sensing electrode.

Abstract: A touch display system includes: a display driver integrated circuit (IC) configured to drive a display panel; a touch screen controller configured to drive a touch screen panel; a driving voltage generator configured to provide driving voltages to the display panel, the display driver IC, and the touch screen controller; and a ground modulation device configured to receive a driving signal, which is used to drive the touch screen panel and periodically swings between a first reference voltage level and a second reference voltage level, from the touch screen controller, configured to generate a modulated ground voltage, which periodically swings between the first reference voltage level and the second reference voltage level, based on the driving signal, and configured to provide the modulated ground voltage to the display panel, the display driver IC, and the touch screen controller

Abstract: Provided is a display device including: a pixel array unit in which pixels including a light-emitting unit are arranged in a matrix shape; two drive units which are disposed on the same substrate as the pixel array unit with the pixel array unit interposed therebetween, which have output stages in a number that is half of the number of pixel rows of the pixel array unit, and in which the output stages are in charge of driving of pixels on an odd row side and on an even row side; and a control unit which performs control of driving the pixels on the odd row side by using the output stages of one drive unit between the two drive units, of driving the pixels on the even row side by using the output stages of the other drive unit, and of inverting the driving for each field.

Abstract: A stylus, including a pen body, and a battery module and an electrically conductive structure disposed in the pen body, is provided. The pen body has a charging port. The battery module has at least one electrode. The electrically conductive structure includes a first electrically conductive assembly, a second electrically conductive assembly and a first electrically conductive elastic element. The first electrically conductive assembly is connected to the electrode, the second electrically conductive assembly is disposed between the first electrically conductive assembly and the charging port, and the first electrically conductive elastic element is connected to the second electrically conductive assembly and has a contact end. The contact end is in contact with the first electrically conductive assembly by an elastic force of the first electrically conductive elastic element, and the contact end is adapted to be separated from the first electrically conductive assembly by an external force.

Abstract: An electronic device including: a housing; a sensor module disposed on an inner face of the housing and including a plurality of sensing units; and a processor positioned within the housing and electrically connected to the sensor module. Each of the plurality of sensing units is electrically connected to another sensing unit adjacent thereto among the plurality of sensing units, and includes a central portion and a plurality of peripheral portions connected to a partial area of the central portion and arranged around the central portion, and each of the central portion and the plurality of peripheral portions includes a touch sensor. In addition to this, various embodiments understood through this document are possible.

Abstract: An e-pen includes e-pen sensor electrodes (including a first and a second e-pen sensor electrode) and drive-sense circuits (DSCs) (including a first DSC and a second DSC. The first DSC drives a first e-pen signal having a first frequency via a first single line coupling to the first e-pen sensor electrode and simultaneously senses, via the first single line, the first e-pen signal. Based on e-pen/touch sensor device interaction, the first e-pen signal is coupled into at least one touch sensor electrode of the touch sensor device. The first DSC process the first e-pen signal to generate a first digital signal representative of a first electrical characteristic of the first e-pen sensor electrode. Similarly, the second DSC drives a second e-pen signal having a second frequency via a second single line coupling to the second e-pen sensor electrode and simultaneously senses, via the second single line, the second e-pen signal.

Abstract: A touch driving device and a touch movement track identification method are provided. The touch driving device includes a touch sensing circuit and a touch control circuit. The touch sensing circuit receives touch sensing signals from a touch sensor array when a touch display screen is operated in a display power saving mode, and generates digital touch sensing data according to the touch sensing signals. The touch control circuit periodically generates touch coordinates according to the digital touch sensing data, identifies whether an input symbol corresponding to a touch movement track formed by the touch coordinates generated consecutively matches a preconfigured symbol, and outputs a matching result to a core processing unit of the electronic device. The touch coordinates are generated when the orientation of the input symbol drawn on the touch display screen is not the same as a screen orientation of the touch display screen.

Abstract: An apparatus (73) for processing signals from a touch panel (10) is described. The touch panel (10) includes a layer of piezoelectric material (16) disposed between a number of sensing electrodes (14, 20) and at least one common electrode (15). The apparatus (73) includes a capacitive touch controller (69) for connection to the sensing electrodes (14, 20). The apparatus (73) also includes a switch network (74) including a number of inputs for connection to some or all of the sensing electrodes (14, 20), and an output connected to system ground or a common mode voltage (VCM). The apparatus (73) also includes a second circuit (24, 44) for connection to the at least one common electrode (15) and configured to generate, based on signals received from the at least one common electrode, a second pressure signal (30) indicative of a total pressure applied to the touch panel (10).

Abstract: A device for touch panel pressure detection includes a plurality of first input/output terminals for a projected capacitance touch panel. The projected capacitance touch panel includes a layer of piezoelectric material disposed between a plurality of sensing electrodes and a common electrode. The device also includes one or more amplifiers. Each amplifier has an inverting input, a non-inverting input and an output. The non-inverting input of the or each amplifier is configured to be switched between a common mode voltage and a capacitance measurement signal. The inverting input of the or each amplifier is configured to drive an input/output terminal based on the capacitance measurement signal. The amplifier is configured such that, when an input/output terminal is connected to a sensing electrode, the amplifier output varies in dependence upon a pressure applied to the touch panel.