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    Subpixel circuit, display panel, and display device
    21.
    发明授权
    Subpixel circuit, display panel, and display device 有权

    公开(公告)号：US11869436B2

    公开(公告)日：2024-01-09

    申请号：US17965426

    申请日：2022-10-13

    Applicant: LG DISPLAY CO., LTD.

    Inventor： CheolSe Kim

    IPC: G09G3/3233 ,  G09G3/3266 ,  G09G3/3291

    CPC classification number: G09G3/3233 ,  G09G3/3266 ,  G09G3/3291 ,  G09G2300/0852 ,  G09G2310/0278 ,  G09G2310/061 ,  G09G2310/08 ,  G09G2320/0233

    Abstract: A subpixel circuit, a display panel, and a display device are disclosed. A subpixel circuit for operating a subpixel of a display panel may include: a light emitting circuit including an light emitting element to receive a high-potential voltage, the light emitting circuit being configured to control the light emitting element according to a driving voltage and to output a control voltage; a reference circuit configured to receive the control voltage and a low-potential voltage and to control a driving current flowing through the light emitting element; an amplification circuit configured to compare the control voltage and a data voltage to generate the driving voltage for controlling the light emitting circuit; and an input circuit configured to receive the data voltage and a first scan signal and to control a timing of applying the data voltage to the amplification circuit based on the first scan signal.

    Display device
    22.
    发明授权
    Display device 有权

    公开(公告)号：US11861091B2

    公开(公告)日：2024-01-02

    申请号：US17972448

    申请日：2022-10-24

    Applicant: LG Display Co., Ltd.

    Inventor： CheolSe Kim ,  SungChul Kim ,  HoonBae Kim ,  SunYeop Kim ,  Jinseong Kim ,  JuHan Kim ,  Haewon Lee

    IPC: G06F3/041 ,  G06F3/044 ,  H01L33/62 ,  H01L25/075

    CPC classification number: G06F3/0412 ,  G06F3/0416 ,  G06F3/0446 ,  H01L25/0753 ,  H01L33/62

    Abstract: A display device includes a substrate including a plurality of sub pixels; a first touch electrode on the substrate and overlapping at least one subpixel from the plurality of sub pixels; a second touch electrode on the substrate and spaced apart from the first touch electrode and overlapping the at least one sub pixel; an insulating layer covering the first touch electrode and the second touch electrode; a plurality of charging transistors on the insulating layer and electrically connected to one of the first touch electrode and the second touch electrode; a plurality of sensing transistors on the insulating layer and electrically connected to one of the first touch electrode and the second touch electrode; a planarization layer covering the plurality of charging transistors and the plurality of sensing transistors; and a light emitting diode on the planarization layer.

    Display device
    24.
    发明授权
    Display device 有权

    公开(公告)号：US11714504B2

    公开(公告)日：2023-08-01

    申请号：US17561270

    申请日：2021-12-23

    Applicant: LG Display Co., Ltd.

    Inventor： CheolSe Kim ,  JuHan Kim ,  Jinseong Kim ,  Haewon Lee

    IPC: G06F3/041 ,  G06F3/044

    CPC classification number: G06F3/0412 ,  G06F3/044 ,  G06F3/04164 ,  G06F3/04166 ,  G06F2203/04111

    Abstract: A display device includes a first substrate, pixel substrates, first connection lines, second connection lines, and a touch electrode. The pixel substrates are disposed on the first substrate, and are spaced apart from each other along a first direction and along a second direction perpendicular to the first direction. The first connection lines connect pixel substrates disposed along the first direction. The second connection lines connect pixel substrates disposed along the second direction. The touch electrode is disposed between the pixel substrates in an area adjacent to areas in which the first connection lines and the second connection lines are disposed.

    Touch display device, driving method, and driving circuit
    27.
    发明授权
    Touch display device, driving method, and driving circuit 有权

    公开(公告)号：US10691259B2

    公开(公告)日：2020-06-23

    申请号：US16112320

    申请日：2018-08-24

    Applicant: LG Display Co., Ltd.

    Inventor： CheolSe Kim ,  HoonBae Kim ,  SunYeop Kim

    IPC: G06F3/041 ,  G09G3/20 ,  G06F3/044 ,  G06F3/01 ,  G09G3/36

    Abstract: Embodiments of the present disclosure relate to a touch display device, a driving method, and a driving circuit. More particularly, embodiments of the present disclosure relate to a touch display device, a driving method, and a driving circuit capable of preventing touch sensitivity from being affected by display driving even though simultaneously performing the display driving and touch driving by supplying a data voltage to a plurality of data lines disposed in a display panel, supplying a common voltage to a plurality of common electrodes disposed in the display panel, displaying an image through the display panel, and supplying a common voltage to the common electrodes.

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