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    DISPLAY DEVICE INCLUDING TOUCH SENSOR AND TOUCH SENSING METHOD FOR THE SAME
    1.
    发明申请
    DISPLAY DEVICE INCLUDING TOUCH SENSOR AND TOUCH SENSING METHOD FOR THE SAME 有权

    公开(公告)号：US20210232252A1

    公开(公告)日：2021-07-29

    申请号：US17233182

    申请日：2021-04-16

    Applicant: LG Display Co., Ltd.

    Inventor： JaeKyu PARK ,  HyunWoo JANG ,  HyeongWon KANG ,  SuWon LEE

    IPC: G06F3/041 ,  G06F3/044 ,  G06F3/0354 ,  G06F3/047

    Abstract: A display device includes at least one touch sensor configured to sense a touch in response to a touch signal, a display panel including the at least one touch sensor and configured to operate in one of a display mode and a touch-sensing mode, a first circuit and a second circuit. The first circuit is configured to supply at least one of a first touch signal and a second touch signal to the at least one touch sensor during the touch-sensing mode, to yield at least one supplied signal, the first touch signal being different from the second touch signal. The second circuit is configured to control signal lines corresponding to the at least one touch sensor to receive a signal corresponding to the at least one supplied signal or to be in an electrically open state.

    CONVERTING INTEGRATOR, TOUCH DRIVING CIRCUIT, AND TOUCH DISPLAY DEVICE
    3.
    发明公开
    CONVERTING INTEGRATOR, TOUCH DRIVING CIRCUIT, AND TOUCH DISPLAY DEVICE 审中-公开

    公开(公告)号：US20240220045A1

    公开(公告)日：2024-07-04

    申请号：US18389501

    申请日：2023-11-14

    Applicant: LG Display Co., Ltd.

    Inventor： HongJu LEE ,  Hyunwoo KIM ,  JaeKyu PARK

    IPC: G06F3/041

    CPC classification number: G06F3/0416

    Abstract: A touch display device can include a plurality of touch electrodes disposed on or in a display panel; and a touch driving circuit configured to drive the plurality of touch electrodes by outputting a touch driving signal having a first level period and a second level period. Also, the touch driving circuit includes a current regulator configured to receive an input current from at least one of the plurality of touch electrodes during at least a partial period of the first level period and at least a partial period of the second level period of the touch driving signal, and scale down the input current to a first current and output the first current; and a converting integrator configured to output a sensing voltage based on the first current or a second current adjusted from the first current.

    GATE DRIVING CIRCUIT AND LIGHT EMITTING DISPLAY APPARATUS COMPRISING THE SAME
    4.
    发明申请
    GATE DRIVING CIRCUIT AND LIGHT EMITTING DISPLAY APPARATUS COMPRISING THE SAME 有权

    公开(公告)号：US20210201767A1

    公开(公告)日：2021-07-01

    申请号：US17129412

    申请日：2020-12-21

    Applicant: LG Display Co., Ltd.

    Inventor： JaeKyu PARK ,  SooHong CHOI ,  HongJae SHIN ,  Seongho YUN ,  Jeongrim SEO

    IPC: G09G3/32

    Abstract: A gate driving circuit and a light emitting display apparatus comprising the same are discussed, in which a charging characteristic of a control node is improved. The gate driving circuit comprises first to mth stage circuits, wherein each of the first to mth stage circuits includes first to third control nodes, a node control circuit controlling a voltage of each of the first to third control nodes, and an output buffer circuit outputting each of a scan signal, a sense signal and a carry signal in accordance with each of the first to third control nodes, the node control circuit including a node setup circuit charging a first gate high potential voltage in the first control node in response to a first carry signal supplied from a front stage circuit.

    TOUCH DISPLAY DEVICE, TOUCH CIRCUIT AND TOUCH DRIVING METHOD THEREOF
    5.
    发明申请
    TOUCH DISPLAY DEVICE, TOUCH CIRCUIT AND TOUCH DRIVING METHOD THEREOF 有权

    公开(公告)号：US20220027012A1

    公开(公告)日：2022-01-27

    申请号：US17350373

    申请日：2021-06-17

    Applicant: LG DISPLAY CO., LTD.

    Inventor： HoonBae KIM ,  HyunWoo JANG ,  KiYong KIM ,  JaeKyu PARK ,  Youngwoo JO ,  SunChul KIM ,  SunYeop KIM ,  Seongkyu KANG

    IPC: G06F3/044 ,  G06F3/041

    Abstract: Embodiments of the present disclosure relate to a touch display device, a touch circuit and a touch driving method thereof, and more particularly, a touch display device, a touch circuit and a touch driving method thereof enable to reduce effectively a ghost phenomenon in touch electrode groups by dividing a plurality of touch electrodes into a plurality of touch electrode groups with same patterns. The touch display device may include a display panel including a touch electrode group in which a plurality of long touch electrodes with long length and a plurality of short touch electrodes with short length in a first direction are alternately arranged in a second direction; and a touch circuit sequentially performing a self-capacitance sensing operation and a mutual-capacitance sensing operation for the touch electrode group.

    GATE DRIVING CIRCUIT AND DISPLAY APPARATUS COMPRISING THE SAME
    6.
    发明申请
    GATE DRIVING CIRCUIT AND DISPLAY APPARATUS COMPRISING THE SAME 有权

    公开(公告)号：US20210201816A1

    公开(公告)日：2021-07-01

    申请号：US17132735

    申请日：2020-12-23

    Applicant: LG Display Co., Ltd.

    Inventor： KwangSoo KIM ,  HongJae SHIN ,  JaeKyu PARK

    IPC: G09G3/3266

    Abstract: A gate driving circuit and a display apparatus including the same are disclosed, in which a plurality of gate lines may be driven through one stage circuit. The gate driving circuit includes first to mth stage circuits outputting a plurality of scan signals by dividing the scan signals into a first signal group and a second signal group. The first to mth stage circuits are grouped into k number of stage groups having two adjacent stage circuits, stage circuits of jth stage group (j is a natural number of 1 to k−1) output the scan signals of the first signal group to be earlier than the scan signals of the second signal group, and stage circuits of (j+1)th stage group output the scan signals of the second signal group to be earlier than the scan signals of the first signal group.

    GATE DRIVING CIRCUIT AND DISPLAY APPARATUS COMPRISING THE SAME
    7.
    发明申请
    GATE DRIVING CIRCUIT AND DISPLAY APPARATUS COMPRISING THE SAME 有权

    公开(公告)号：US20210201770A1

    公开(公告)日：2021-07-01

    申请号：US17130173

    申请日：2020-12-22

    Applicant: LG Display Co., Ltd.

    Inventor： JaeKyu PARK ,  Sangki JEON

    IPC: G09G3/32

    Abstract: A gate driving circuit and a display apparatus comprising the same are disclosed, in which a maximum voltage level of a plurality of scan signals output from one stage circuit can be prevented from being deteriorated. The gate driving circuit comprises first to mth stage circuits, wherein each of the first to mth stage circuits includes a logic circuit portion controlling a voltage of each of a first control node and a second control node, a node boosting circuit boosting the voltage of each of the control nodes in accordance with boosting shift clock signals, a scan output circuit outputting each of first to ith scan shift clock signals as first to ith scan signals (i is a natural number of 3 or more) in response to the boosting voltage of the first control node, and a carry output circuit outputting carry shift clock signals as carry signals in response to the boosting voltage of the first control node.

    DISPLAY DEVICE INCLUDING TOUCH SENSOR AND TOUCH SENSING METHOD FOR THE SAME
    8.
    发明申请
    DISPLAY DEVICE INCLUDING TOUCH SENSOR AND TOUCH SENSING METHOD FOR THE SAME 审中-公开

    公开(公告)号：US20200233518A1

    公开(公告)日：2020-07-23

    申请号：US16843252

    申请日：2020-04-08

    Applicant: LG Display Co., Ltd.

    Inventor： JaeKyu PARK ,  HyunWoo JANG ,  HyeongWon KANG ,  SuWon LEE

    IPC: G06F3/041 ,  G06F3/0354 ,  G06F3/044 ,  G06F3/047

    Abstract: A display device includes at least one touch sensor configured to sense a touch in response to a touch signal, a display panel including the at least one touch sensor and configured to operate in one of a display mode and a touch-sensing mode, a first circuit and a second circuit. The first circuit is configured to supply at least one of a first touch signal and a second touch signal to the at least one touch sensor during the touch-sensing mode, to yield at least one supplied signal, the first touch signal being different from the second touch signal. The second circuit is configured to control signal lines corresponding to the at least one touch sensor to receive a signal corresponding to the at least one supplied signal or to be in an electrically open state.

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