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    Display device and method for driving the same
    12.
    发明授权
    Display device and method for driving the same 有权

    公开(公告)号：US11574505B2

    公开(公告)日：2023-02-07

    申请号：US17224421

    申请日：2021-04-07

    Applicant: SAMSUNG DISPLAY CO., LTD.

    Inventor： Soon Gyu Lee ,  Jin Woo Kim ,  Jin A Kang ,  Young Sik Kim

    IPC: G06V40/40 ,  G06V10/141 ,  G06V40/60 ,  G06V40/13 ,  G06V40/12 ,  G09G5/10 ,  G09G3/20 ,  G06F3/044

    Abstract: A method for driving a display device is performed by the display device. The method includes: displaying a first image including user convenience information through a display panel; generating sensing data corresponding to a fingerprint sensing area by using a photoelectric sensor; and determining whether a sensed fingerprint corresponding to the sensing data is a fake fingerprint by comparing expected sensing light illuminance information based on the first image with sensed light illuminance information of the sensing data. The first image includes a first color pattern in the fingerprint sensing area of the display panel. A fake-determination image pattern includes the first color pattern and a second color pattern different from the first color pattern.

    Touch sensor and method of driving the same
    13.
    发明授权
    Touch sensor and method of driving the same 有权

    公开(公告)号：US11294502B2

    公开(公告)日：2022-04-05

    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

    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.

    Touch sensor and display device including the same
    14.
    发明授权
    Touch sensor and display device including the same 有权

    公开(公告)号：US10705635B2

    公开(公告)日：2020-07-07

    申请号：US16036090

    申请日：2018-07-16

    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.

    INPUT SENSING DEVICE AND DISPLAY DEVICE INCLUDING THE SAME
    15.
    发明申请
    INPUT SENSING DEVICE AND DISPLAY DEVICE INCLUDING THE SAME 审中-公开

    公开(公告)号：US20190332210A1

    公开(公告)日：2019-10-31

    申请号：US16299280

    申请日：2019-03-12

    Applicant: SAMSUNG DISPLAY CO., LTD.

    Inventor： In Nam Lee ,  Young Sik Kim ,  Hyun Jae Lee ,  Mi Young Kim ,  Sung Hwan Kim ,  Chang Bum Kim ,  Hyung Chul Kim

    IPC: G06F3/041 ,  G06F3/044 ,  G01L1/14 ,  G01L1/22

    Abstract: An input sensing device includes a first base layer, a plurality of first sensing electrodes, a plurality of second sensing electrodes, a plurality of third sensing electrodes, and a plurality of fourth sensing electrodes. The first sensing electrodes are arranged on the first base layer along a first direction. The second sensing electrodes are arranged on the first base layer in different rows from the first sensing electrodes. The third sensing electrodes are arranged on the second sensing electrodes along a second direction different from the first direction. The third sensing electrodes overlap the second sensing electrodes. The fourth sensing electrodes are arranged on the same layer as the third sensing electrodes and overlap the first sensing electrodes. A constant voltage is applied to the third sensing electrodes during a touch pressure sensing operation.

    Flexible display device with touch panel
    17.
    发明授权
    Flexible display device with touch panel 有权

    公开(公告)号：US10310679B2

    公开(公告)日：2019-06-04

    申请号：US14693496

    申请日：2015-04-22

    Applicant: Samsung Display Co., Ltd.

    Inventor： Young Sik Kim ,  Jung Mok Park ,  Chang Bum Kim ,  Hyung Chul Kim

    IPC: G06F1/16 ,  G06F3/041 ,  G06F3/044 ,  G06F3/045

    Abstract: A flexible display device includes a display panel including a first surface including a display area configured to display an image, and a second surface disposed on the opposite side of the display panel from the first surface, and a touch panel disposed on the first surface, the touch panel including a base film and a transparent conductive layer disposed on a surface of the base film facing the display panel, in which at least a portion of each of the display panel and the touch panel is bendable such that centers of curvature of the display panel and the touch panel are positioned outside the second surface.

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