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    TOUCH SENSOR AND DISPLAY DEVICE
    3.
    发明公开
    TOUCH SENSOR AND DISPLAY DEVICE 审中-公开

    公开(公告)号：US20230409156A1

    公开(公告)日：2023-12-21

    申请号：US18238578

    申请日：2023-08-28

    Applicant: Samsung Display Co., Ltd.

    Inventor： Jang Hui Kim ,  Ga Young Kim ,  Do Ik Kim ,  Sang Chul Lee ,  A Ra Jo

    IPC: G06F3/045

    CPC classification number: G06F3/045 ,  G06F2203/04105

    Abstract: A 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 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 first touch electrodes and the second touch electrodes.

    Display device
    4.
    发明授权
    Display device 有权

    公开(公告)号：US11836015B2

    公开(公告)日：2023-12-05

    申请号：US17599512

    申请日：2020-02-11

    Applicant: SAMSUNG DISPLAY CO., LTD.

    Inventor： Choon Hyop Lee ,  Kang Won Lee ,  Seung Hwan Chung ,  Sang Chul Lee

    IPC: G06F3/041 ,  G06F1/16

    CPC classification number: G06F1/1684 ,  G06F3/0412 ,  G06F2203/04105

    Abstract: A display device includes a display panel; a pressure sensor disposed on the display panel; and a lower bracket. The pressure sensor is disposed between the display panel and the lower bracket and is disposed on the lower bracket. The pressure sensor includes a first substrate, a first pressure sensing layer disposed between the first substrate and the lower bracket, a first driving electrode disposed between the first pressure sensing layer and the lower bracket, and a first sensing electrode spaced apart from the first driving electrode. A gap is present between the first pressure sensing layer, and the first driving electrode and the first sensing electrode.

    Display device
    6.
    发明授权
    Display device 有权

    公开(公告)号：US11429211B2

    公开(公告)日：2022-08-30

    申请号：US17015419

    申请日：2020-09-09

    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.

    Touch sensing device and display device including the same
    7.
    发明授权
    Touch sensing device and display device including the same 有权

    公开(公告)号：US10936137B2

    公开(公告)日：2021-03-02

    申请号：US16358048

    申请日：2019-03-19

    Applicant: SAMSUNG DISPLAY CO., LTD.

    Inventor： In Nam Lee ,  Jang Hui Kim ,  Sang Chul Lee ,  A Ra Jo

    IPC: G06F3/045 ,  G06F3/041 ,  G06F3/044

    Abstract: A touch sensing device includes a first base layer, a plurality of first sensing electrodes disposed on the first base layer and spaced apart in a first direction, a plurality of second sensing electrodes disposed on a same layer as the first sensing electrodes and arranged in different rows from the first sensing electrodes, a plurality of third sensing electrodes on the second sensing electrodes that are spaced apart along a second direction different from the first direction and that overlap the second sensing electrodes, and a plurality of fourth sensing electrodes on the first sensing electrodes that are spaced apart along the second direction and that overlap the first sensing electrodes. At least two of the second sensing electrodes are directly connected to each other.

    Touch sensor and display device including the same
    8.
    发明授权
    Touch sensor and display device including the same 有权

    公开(公告)号：US10732746B2

    公开(公告)日：2020-08-04

    申请号：US15978355

    申请日：2018-05-14

    Applicant: Samsung Display Co., Ltd.

    Inventor： Do Ik Kim ,  Ga Young Kim ,  Sang Hyun Lim ,  Young Sik Kim ,  Sang Chul Lee ,  Hwan Hee Jeong

    IPC: G06F3/041 ,  G06F3/047 ,  G06F3/044 ,  G09G3/3208 ,  H01L27/32

    Abstract: A touch sensor includes a first electrode, a second electrode, and a sensing channel. The first electrode includes first electrode cells arranged in a first direction, a first connection portion connecting the first electrode cells in the first direction and a first opening disposed in at least one of the first electrode cells. The second electrode includes an electrode portion disposed in the first opening. The electrode portion is disposed on a same layer as the first electrode cells and separated from the first electrode. The sensing channel includes a first terminal and a second terminal. The first terminal is connected to the first electrode. The second terminal is connected to the second electrode.

    Touch sensor and method of driving the same
    9.
    发明授权
    Touch sensor and method of driving the same 有权

    公开(公告)号：US10338747B2

    公开(公告)日：2019-07-02

    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

    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.

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