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    TOUCH SENSOR AND METHOD OF DRIVING THE SAME
    11.
    发明申请
    TOUCH SENSOR AND METHOD OF DRIVING THE SAME 审中-公开

    公开(公告)号：US20190302962A1

    公开(公告)日：2019-10-03

    申请号：US16446717

    申请日：2019-06-20

    Applicant: Samsung Display Co., Ltd.

    Inventor： Do Ik KIM ,  Sang Hyun LIM ,  Ga Young KIM ,  Young Sik KIM ,  Sang Chul LEE

    IPC: G06F3/041 ,  G06F3/044

    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.

    DISPLAY DEVICE AND METHOD OF DRIVING THE SAME
    12.
    发明申请
    DISPLAY DEVICE AND METHOD OF DRIVING THE SAME 审中-公开

    公开(公告)号：US20190102017A1

    公开(公告)日：2019-04-04

    申请号：US16110226

    申请日：2018-08-23

    Applicant: Samsung Display Co., Ltd.

    Inventor： Jung Hak KIM ,  Do Ik KIM ,  Ga Young KIM ,  Young Sik KIM ,  Sang Chul LEE

    IPC: G06F3/041 ,  G06F3/044

    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.

    TOUCH SENSOR AND METHOD OF DRIVING THE SAME
    13.
    发明申请
    TOUCH SENSOR AND METHOD OF DRIVING THE SAME 审中-公开

    公开(公告)号：US20180321793A1

    公开(公告)日：2018-11-08

    申请号：US15914281

    申请日：2018-03-07

    Applicant: Samsung Display Co., Ltd.

    Inventor： Do Ik KIM ,  Sang Hyun LIM ,  Ga Young KIM ,  Young Sik KIM ,  Sang Chul LEE

    IPC: G06F3/041 ,  G06F3/044

    CPC classification number: G06F3/0418 ,  G06F3/044 ,  G06F2203/04111

    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.

    TOUCH DETECTING UNIT AND DISPLAY DEVICE INCLUDING THE SAME
    14.
    发明申请
    TOUCH DETECTING UNIT AND DISPLAY DEVICE INCLUDING THE SAME 有权

    公开(公告)号：US20210005677A1

    公开(公告)日：2021-01-07

    申请号：US16895768

    申请日：2020-06-08

    Applicant: Samsung Display Co., Ltd.

    Inventor： Kang Won LEE ,  Do Ik KIM ,  Choon Hyop LEE ,  Jang Hui KIM ,  Sang Chul LEE

    IPC: H01L27/32 ,  G06F3/041 ,  G06F3/044

    Abstract: A touch detecting unit comprises first sensor electrodes arranged in a first direction and electrically connected with one another second sensor electrodes arranged in a second direction crossing the first direction, and electrically connected with one another, the second sensor electrodes electrically separated from the first sensor electrodes, and third sensor electrodes electrically separated from the first sensor electrodes and the second sensor electrodes. Amounts of change in first capacitances between the first sensor electrodes and the second sensor electrodes are detected in a first mode. Amounts of change in the first capacitances and amounts of change in a second capacitance between the first sensor electrodes and the third sensor electrodes are detected in a second mode.

    TOUCH SENSOR AND DISPLAY DEVICE
    15.
    发明申请
    TOUCH SENSOR AND DISPLAY DEVICE 审中-公开

    公开(公告)号：US20200319735A1

    公开(公告)日：2020-10-08

    申请号：US16835784

    申请日：2020-03-31

    Applicant: Samsung Display Co., Ltd.

    Inventor： Jang Hui KIM ,  Ga Young KIM ,  Do Ik KIM ,  Sang Chul LEE ,  A Ra JO

    IPC: G06F3/045

    Abstract: The touch sensor includes first touch electrode members disposed on a base layer and located in a sensing area, each of the first touch electrode members including a plurality of first touch electrodes arranged along a first direction, each of the first touch electrodes including a first opening; second touch electrode members disposed on the base layer and located in a sensing area, each of the second touch electrode members including a plurality of second touch electrodes arranged along a second direction, each of the second touch electrodes including a second opening; and a first pressure sensor disposed on the base layer and including a first strain gauge. A portion of the first strain gauge is located in the second sensing area, and the first strain gauge includes a portion located in the second sensing area and disposed in the same layer as the plurality of first touch electrodes and the plurality of second touch electrodes.

    TOUCH SENSOR AND DISPLAY DEVICE INCLUDING THE SAME
    16.
    发明申请
    TOUCH SENSOR AND DISPLAY DEVICE INCLUDING THE SAME 审中-公开

    公开(公告)号：US20200293139A1

    公开(公告)日：2020-09-17

    申请号：US16889079

    申请日：2020-06-01

    Applicant: Samsung Display Co., Ltd.

    Inventor： Jung Hak KIM ,  Do Ik KIM ,  Young Sik KIM ,  Sang Chul LEE

    IPC: G06F3/041 ,  G06F3/044 ,  G06F3/047 ,  H01L27/32 ,  H01L51/52 ,  G09G3/3266 ,  G09G3/3275 ,  G09G3/20

    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.

    DISPLAY DEVICE AND TOUCH SENSOR INCLUDING TOUCH SENSING ELECTRODES
    18.
    发明申请
    DISPLAY DEVICE AND TOUCH SENSOR INCLUDING TOUCH SENSING ELECTRODES 审中-公开

    公开(公告)号：US20190332212A1

    公开(公告)日：2019-10-31

    申请号：US16363345

    申请日：2019-03-25

    Applicant: SAMSUNG DISPLAY CO., LTD.

    Inventor： JUNG HAK KIM ,  Do lk KIM ,  Gwang Bum KO ,  Ga Young KIM ,  Young Sik KIM ,  Sang Chul LEE

    IPC: G06F3/041 ,  G06F3/044 ,  H01L27/32 ,  H01L51/52

    Abstract: A touch sensor includes a base layer and a plurality of first touch electrodes disposed on the base layer. The plurality of first touch electrodes are arranged in a first direction. The plurality of first touch electrodes include openings, and are electrically connected to one another. A plurality of second touch electrodes are disposed on the base layer. The plurality of second touch electrodes are arranged in a second direction. The plurality of second touch electrodes are electrically connected to one another. First pressure sensing electrodes and second pressure sensing electrodes are separated from each other and are disposed in the openings. The pressure sensing electrodes and second pressure sensing electrodes are spaced apart from the first touch electrodes. The first pressure sensing electrodes, the second pressure sensing electrodes, the first touch electrodes, and the second touch electrodes are all disposed in a first layer.

    TOUCH SENSOR AND METHOD OF DRIVING THE SAME
    20.
    发明申请
    TOUCH SENSOR AND METHOD OF DRIVING THE SAME 审中-公开

    公开(公告)号：US20180329576A1

    公开(公告)日：2018-11-15

    申请号：US15949585

    申请日：2018-04-10

    Applicant: Samsung Display Co., Ltd.

    Inventor： Do Ik KIM ,  Ga Young KIM ,  Young Sik KIM ,  Sang Chul LEE

    IPC: G06F3/041 ,  G06F3/044

    CPC classification number: G06F3/0418 ,  G06F3/044 ,  G06F2203/04111

    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.

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