CAPACITIVE TOUCH SYSTEM AND SENSING METHOD THEREOF

    公开(公告)号:US20190018520A1

    公开(公告)日:2019-01-17

    申请号:US16037433

    申请日:2018-07-17

    CPC classification number: G06F3/044 G06F3/03545 G06F3/0414 G06F3/0416

    Abstract: A capacitive touch system and a sensing method thereof are disclosed. The capacitive touch system includes a touch panel; a touch control chip; and an active pen which includes a receiving part, a transmitting part, a control unit, and a pressure sensing element. The control unit controls the transmitting unit to output a pen driving signal according to a pen sensing signal. The pressure sensing element detects a pen pressure signal. The control unit outputs a voltage signal in responsive to the pen pressure signal after a time delay period. In the capacitive touch system and the sensing method thereof, the active pan is not required to be paired with the touch panel.

    TOUCH DISPLAY SYSTEM, TOUCH DISPLAY METHOD, ACTIVE PEN, AND TOUCH CONTROL DEVICE

    公开(公告)号:US20180335860A1

    公开(公告)日:2018-11-22

    申请号:US15968951

    申请日:2018-05-02

    Abstract: A touch display system includes a touch panel; a touch control chip configured to transmit a driving signal to the touch panel; an active pen configured to transmit a signal based on the driving signal of the touch control chip, the signal including two signal segments that are called a position signal and an ID signal, the touch control chip resolving the signal transmitted by the active pen to obtain an ID data carried by the ID signal and inquiring a property of the active pen corresponding to the ID data; and a display panel configured to display traces in accordance with the property of the active pen. Similar to the usage of a traditional marker pen, such an active panel is easily to be used by a user.

    TOUCH DETECTION METHOD
    3.
    发明申请

    公开(公告)号:US20180121021A1

    公开(公告)日:2018-05-03

    申请号:US15693309

    申请日:2017-08-31

    CPC classification number: G06F3/0418 G06F3/044

    Abstract: A touch detection method is applied to a touch panel including sensing units and includes: detecting sensing values corresponding to the sensing units; selecting a first sensing value that is a local maximum among the sensing values; determining a first sensing unit corresponding to the first sensing value among the sensing units; selecting from the sensing units a second sensing unit located at the first side of the first sensing unit; selecting from the sensing values a second sensing value corresponding to the second sensing unit; and generating a touch coordinate according to the first sensing value, the second sensing value, a touch sensing value distribution model, and the coordinate of the first sensing unit.

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