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    Input sensing device and display device including the same
    2.
    发明授权
    Input sensing device and display device including the same 有权

    公开(公告)号：US11893186B2

    公开(公告)日：2024-02-06

    申请号：US18176440

    申请日：2023-02-28

    Applicant: SAMSUNG DISPLAY CO., LTD.

    Inventor： Ji Woong Kim ,  Moon Jae Jeong ,  Hyung Gun Ma ,  Tae Hun Lee ,  Keum Dong Jung ,  Sang Hyun Heo

    IPC: G06F3/041 ,  G06F3/044

    CPC classification number: G06F3/04182 ,  G06F3/0446 ,  G06F3/0447

    Abstract: An input sensing device includes first driving electrodes, second driving electrodes, and sensing electrodes, and a sensing driver that transmits a first driving signal to the first driving electrodes at a first frequency, transmits a second driving signal to the second driving electrodes at a second frequency, and determines a touch or approach of an external object based on sensing signals received from the sensing electrodes. The sensing driver includes analog front-end circuits that separate a sensing signal of the first frequency and a sensing signal of the second frequency that are received from the respective sensing electrodes, and generate digital sensing data based on a result of a recombination of the separated sensing signals.

    Fingerprint sensor and display device including the same
    4.
    发明授权
    Fingerprint sensor and display device including the same 有权

    公开(公告)号：US10572085B2

    公开(公告)日：2020-02-25

    申请号：US16004447

    申请日：2018-06-11

    Applicant: Samsung Display Co., Ltd.

    Inventor： Keum Dong Jung ,  Ki Seo Kim ,  Il Nam Kim ,  Kyung Tea Park ,  Yun Ho Kim ,  Jae Kyoung Kim ,  Won Sang Park ,  Jong In Baek

    IPC: G06F3/044 ,  G06K9/00 ,  G06F3/041

    Abstract: A fingerprint sensor including first, second, and third lines, and a unit sensor coupled to the first, the second, and the third lines. The unit sensor includes a pixel electrode coupled between the first line and the second line, a first capacitance element coupled between the first line and the pixel electrode, a second capacitance element coupled between the second line and the pixel electrode, a switching element coupled between the pixel electrode and one of the first line, the second line, a first line of an adjacent unit sensor, and a second line of the adjacent unit sensor, and including a control electrode coupled to the third line, and a third capacitance element coupled between the third line and the pixel electrode, in which at least one of the first and the second capacitance elements includes a variable capacitance element.

    Liquid crystal display including transistor with improved charging rate
    5.
    发明授权
    Liquid crystal display including transistor with improved charging rate 有权

    公开(公告)号：US10571770B2

    公开(公告)日：2020-02-25

    申请号：US15959689

    申请日：2018-04-23

    Applicant: Samsung Display Co. Ltd.

    Inventor： Keum Dong Jung ,  Seung Hwan Moon ,  Seong Young Lee

    IPC: G09G3/36 ,  G02F1/1362 ,  G02F1/133 ,  G02F1/1343

    Abstract: A liquid crystal display includes a display panel including first and second subpixels, where the first subpixel includes a first switching device including a first electrode connected to the j-th data line, a second electrode connected to a first subpixel electrode and a gate electrode connected to an i-th gate line, the second subpixel includes a second switching device including a first electrode connected to a j-th data line, a second electrode connected to a second subpixel electrode and a gate electrode connected to the i-th gate line, a third switching device including a first electrode connected to the second subpixel electrode and a gate electrode connected to the i-th gate line, and a fourth switching device including a first electrode connected to the j-th data line, a second electrode connected to the first electrode of the third switching device and a gate electrode connected to the i-th gate line.

    Liquid crystal display
    6.
    发明授权
    Liquid crystal display 有权

    公开(公告)号：US09891485B2

    公开(公告)日：2018-02-13

    申请号：US15137528

    申请日：2016-04-25

    Applicant: Samsung Display Co. Ltd.

    Inventor： Keum Dong Jung

    IPC: G02F1/1343 ,  G02F1/1362

    CPC classification number: G02F1/13439 ,  G02F1/136213 ,  G02F1/136227 ,  G02F2001/134345 ,  G02F2001/136218

    Abstract: A liquid crystal display includes a first substrate, a second substrate disposed to face the first substrate and including a common electrode, and a liquid crystal layer interposed between the first and second substrates, where the first substrate includes an insulating substrate, a thin-film transistor which is disposed on the insulating substrate and include a gate electrode, a first pixel electrode which is disposed on the insulating substrate to be spaced apart from the thin film transistor and charges a first voltage, a second pixel electrode which is disposed on the insulating substrate to be spaced apart from the thin film transistor, is disposed in a same layer as the first pixel electrode, and receives a second voltage having a magnitude different from the first voltage, and a storage electrode disposed on the same layer as the gate electrode and to overlap a portion of the second pixel electrode.

    INPUT SENSING DEVICE AND DISPLAY DEVICE INCLUDING THE SAME
    7.
    发明公开
    INPUT SENSING DEVICE AND DISPLAY DEVICE INCLUDING THE SAME 审中-公开

    公开(公告)号：US20240176450A1

    公开(公告)日：2024-05-30

    申请号：US18432158

    申请日：2024-02-05

    Applicant: SAMSUNG DISPLAY CO., LTD.

    Inventor： JI WOONG KIM ,  Moon Jae Jeong ,  Hyung Gun Ma ,  Tae Hun Lee ,  Keum Dong Jung ,  Sang Hyun Heo

    IPC: G06F3/041 ,  G06F3/044

    CPC classification number: G06F3/04182 ,  G06F3/0446 ,  G06F3/0447

    Abstract: An input sensing device includes first driving electrodes, second driving electrodes, and sensing electrodes, and a sensing driver that transmits a first driving signal to the first driving electrodes at a first frequency, transmits a second driving signal to the second driving electrodes at a second frequency, and determines a touch or approach of an external object based on sensing signals received from the sensing electrodes. The sensing driver includes analog front-end circuits that separate a sensing signal of the first frequency and a sensing signal of the second frequency that are received from the respective sensing electrodes, and generate digital sensing data based on a result of a recombination of the separated sensing signals.

    DATA DRIVING CIRCUIT AND DISPLAY DEVICE INCLUDING THE SAME
    8.
    发明公开
    DATA DRIVING CIRCUIT AND DISPLAY DEVICE INCLUDING THE SAME 审中-公开

    公开(公告)号：US20230260441A1

    公开(公告)日：2023-08-17

    申请号：US17985554

    申请日：2022-11-11

    Applicant: SAMSUNG DISPLAY CO., LTD. ,  KOREAN ADVANCE INSTITUTE OF SCIENCE AND TECHNOLOGY

    Inventor： Hyung Gun Ma ,  Gyu Wan Lim ,  Gyeong Gu Kang ,  Hyun Sik Kim ,  Keum Dong Jung ,  Moon Jae Jeong

    IPC: G09G3/20

    CPC classification number: G09G3/20 ,  H01L27/323

    Abstract: A data driving circuit includes: a resistor string in which a plurality of resistors are connected in series; and a plurality of data channels connected to a high voltage node, intermediate voltage nodes, and a low voltage node of the resistor string and configured to convert a digital data signal into an analog data voltage. Each of the plurality of data channels includes: a main digital-to-analog converter connected to the high voltage node, the intermediate voltage nodes, and the low voltage node, a multiplier connected to an output terminal of the main digital-to-analog converter, a sub digital-to-analog converter connected to some of the high voltage node, the intermediate voltage nodes, and the low voltage node, and a voltage synthesizer connected to an output terminal of the multiplier and an output terminal of the sub digital-to-analog converter.

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