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    Display device and touch sensor including touch sensing electrodes
    41.
    发明授权
    Display device and touch sensor including touch sensing electrodes 有权

    公开(公告)号：US11481053B2

    公开(公告)日：2022-10-25

    申请号：US16363345

    申请日：2019-03-25

    Applicant: SAMSUNG DISPLAY CO., LTD.

    Inventor： Jung Hak Kim ,  Do Ik 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 display device
    43.
    发明授权
    Touch sensor and display device 有权

    公开(公告)号：US11231819B2

    公开(公告)日：2022-01-25

    申请号：US17222856

    申请日：2021-04-05

    Applicant: Samsung Display Co., Ltd.

    Inventor： Do Ik Kim ,  Jang hui Kim ,  Sang Chul Lee ,  Ga Young Kim

    IPC: G06F3/044 ,  G06F3/041

    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.

    Touch sensor and method of driving the same
    44.
    发明授权
    Touch sensor and method of driving the same 有权

    公开(公告)号：US11061508B2

    公开(公告)日：2021-07-13

    申请号：US17026333

    申请日：2020-09-21

    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 including sensor electrodes
    46.
    发明授权
    Display device including sensor electrodes 有权

    公开(公告)号：US10775916B2

    公开(公告)日：2020-09-15

    申请号：US16163116

    申请日：2018-10-17

    Applicant: SAMSUNG DISPLAY CO., LTD.

    Inventor： Do Ik Kim ,  Gwang Bum Ko ,  Jung Hak Kim ,  Sang Chul Lee ,  Ga Young Kim

    IPC: G06F3/041 ,  G06F3/044 ,  G09G3/20

    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.

    DISPLAY DEVICE
    49.
    发明申请
    DISPLAY DEVICE 审中-公开

    公开(公告)号：US20190179471A1

    公开(公告)日：2019-06-13

    申请号：US16196168

    申请日：2018-11-20

    Applicant: Samsung Display Co., Ltd

    Inventor： Do Ik Kim ,  Gwang Bum Ko ,  Sung Hwan Kim

    IPC: G06F3/041 ,  H01L27/32 ,  H01L51/52 ,  H01L41/113

    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.

    TOUCH SENSOR AND DISPLAY DEVICE INCLUDING TOUCH SENSOR
    50.
    发明申请
    TOUCH SENSOR AND DISPLAY DEVICE INCLUDING TOUCH SENSOR 审中-公开

    公开(公告)号：US20180157355A1

    公开(公告)日：2018-06-07

    申请号：US15831849

    申请日：2017-12-05

    Applicant: Samsung Display Co., Ltd.

    Inventor： Do Ik Kim

    IPC: G06F3/044 ,  G06F3/041

    CPC classification number: G06F3/044 ,  G06F3/0412 ,  G06F3/0418 ,  G06F2203/04111 ,  G06F2203/04112

    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. The signal receiver may include a first input terminal electrically coupled to the first electrode, may include a second input terminal electrically coupled to the conductive layer, may receive the sensing signal, and may output a signal corresponding to a voltage difference the first input terminal and the second input terminal

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