Sensor stack with opposing electrodes

    公开(公告)号:US10088960B2

    公开(公告)日:2018-10-02

    申请号:US14850223

    申请日:2015-09-10

    Abstract: In certain embodiments, an apparatus includes a first substrate with sense electrodes of a touch sensor disposed on it and a second substrate with drive electrodes of the touch sensor disposed on it. One or more of the following is true: the sense electrodes of the first substrate are made of a first conductive mesh of conductive material such that the sense electrodes include the first conductive mesh; and the drive electrodes of the second substrate are made of a second conductive mesh of conductive material such that the drive electrodes include the second conductive mesh. The apparatus also includes an insulating layer between the sense electrodes of the first substrate and the drive electrodes of the second substrate.

    Suspension of Touch Sensor Scan Based on an Expected Interference

    公开(公告)号:US20180173363A1

    公开(公告)日:2018-06-21

    申请号:US15888501

    申请日:2018-02-05

    CPC classification number: G06F3/0416 G06F3/0412 G06F3/0418 G06F3/044

    Abstract: In certain embodiments, a touch sensor controller estimates an area of a display screen that a display controller will update at a first time and estimates an area of a touch sensor that the touch sensor controller is expected to scan at the first time. The touch sensor controller further identifies an expected interference based on a comparison between the update of the estimated area of the display screen by the display controller at the first time and the scan of the estimated area of the touch sensor by the touch sensor controller at the first time. Based on the expected interference, the touch sensor controller suspends, for a first time period, the scan of the estimated area of the touch sensor for touch events based on the expected interference. The touch sensor controller resumes the scan after the first time period.

    Touch sensor and associated control method for decreased capacitive loads

    公开(公告)号:US10705651B2

    公开(公告)日:2020-07-07

    申请号:US16541473

    申请日:2019-08-15

    Abstract: A device includes a controller coupled to a touch sensor. The touch sensor includes a first array of capacitive nodes substantially aligned with a second array of capacitive nodes in a mechanical stack. The controller is configured, when in a self-capacitive mode of operation, to send a first drive signal to a plurality of the electrodes of the first array, send a shield signal to at least a portion of the electrodes of the second array at the same time as the first drive signal is sent to the plurality of electrodes of the first array, and sense touch inputs based on signals received from the plurality of electrodes of the first array while the first drive signal is being sent to the plurality of electrodes of the first array and the shield signal is being sent to the at least a portion of the electrodes of the second array.

    Pseudo Driven Shield
    5.
    发明申请

    公开(公告)号:US20190004629A1

    公开(公告)日:2019-01-03

    申请号:US16042872

    申请日:2018-07-23

    Abstract: In an embodiment, a touch-sensitive device includes a controller, a shield sensor, a plurality of first electrodes, and a plurality of second electrodes. The plurality of first electrodes spans a first direction and the plurality of second electrodes spans a second direction that is different than the first direction. The controller electrically couples the plurality of first electrodes to the shield sensor. The shield sensor charges the plurality of first electrodes to cause substantially equal voltages to be present on the plurality of first electrodes and the plurality of second electrodes.

    Suspension of touch sensor scan based on an expected interference

    公开(公告)号:US10162464B2

    公开(公告)日:2018-12-25

    申请号:US15888501

    申请日:2018-02-05

    Abstract: In certain embodiments, a touch sensor controller estimates an area of a display screen that a display controller will update at a first time and estimates an area of a touch sensor that the touch sensor controller is expected to scan at the first time. The touch sensor controller further identifies an expected interference based on a comparison between the update of the estimated area of the display screen by the display controller at the first time and the scan of the estimated area of the touch sensor by the touch sensor controller at the first time. Based on the expected interference, the touch sensor controller suspends, for a first time period, the scan of the estimated area of the touch sensor for touch events based on the expected interference. The touch sensor controller resumes the scan after the first time period.

    Dynamic clustering of touch sensor electrodes

    公开(公告)号:US10042501B2

    公开(公告)日:2018-08-07

    申请号:US15868706

    申请日:2018-01-11

    Abstract: In one embodiment, an apparatus includes a sensor and a controller having a processor and a memory. The memory includes logic operable, when executed by the processor, to connect each electrode of a first subset of electrodes of the sensor and determine a first value associated with the first subset of electrodes. Based at least on the first value, the logic is further operable to alter the first subset of electrodes to a second subset of electrodes and connect, in response to determining to alter the first subset of electrodes to the second subset of electrodes, each electrode of the second subset of electrodes of the sensor.

Patent Agency Ranking