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    Thin Film Transistor and Display Apparatus Comprising the Same
    1.
    发明申请
    Thin Film Transistor and Display Apparatus Comprising the Same 有权

    公开(公告)号：US20250072056A1

    公开(公告)日：2025-02-27

    申请号：US18946627

    申请日：2024-11-13

    Applicant: LG Display Co., Ltd.

    Inventor： Sunggu Kim ,  DaeHwan Kim

    IPC: H01L29/786 ,  H01L29/24

    Abstract: A thin film transistor and a display apparatus comprising the same are provided, in which the thin film transistor comprises an active layer, a barrier layer on the active layer; a gate insulating layer on the barrier layer; and a gate electrode on the gate insulating layer, wherein at least a portion of the gate electrode overlaps at least a portion of the active layer, and the barrier layer includes an oxide semiconductor material and has a resistivity greater than a resistivity of the active layer and has a thickness less than a thickness of the active layer.

    DISPLAY DEVICE
    2.
    发明申请
    DISPLAY DEVICE 有权

    公开(公告)号：US20250069555A1

    公开(公告)日：2025-02-27

    申请号：US18789355

    申请日：2024-07-30

    Applicant: LG Display Co., Ltd.

    Inventor： Byeongchul KIM ,  Dongsup SIM

    IPC: G09G3/3266 ,  G09G3/3233

    Abstract: Disclosed is a display device that reduces a flicker phenomenon that occurs in a low-speed operation in a Variable Refresh Rate (VRR) mode by tuning a bias voltage based on a refresh rate and supplying the tuned bias voltage to a display panel. The display device includes a display panel including a plurality of pixels; and a power supply for supplying a bias voltage and an anode reset voltage to the plurality of pixels, wherein when the display device operates in a VRR mode, the display device is configured to adjust at least one of a level and an application time of the bias voltage based on a refresh rate in an anode reset frame.

    Display apparatus and operating method thereof
    4.
    发明授权
    Display apparatus and operating method thereof 有权

    公开(公告)号：US12236878B2

    公开(公告)日：2025-02-25

    申请号：US18529906

    申请日：2023-12-05

    Applicant: LG Display Co., Ltd.

    Inventor： Junhaeng Heo ,  Sejeong Wi

    IPC: G09G3/3233

    Abstract: According to an aspect of the present disclosure, a display apparatus may include a display panel in which a pixel circuit including a light emitting diode and a driving transistor connected to the light emitting diode is disposed; a memory configured to store a first current value corresponding to a first temperature and a second current value corresponding to a second temperature; a temperature sensor; and a control circuit configured to identify a threshold voltage of the light emitting diode using the first current value when a temperature sensed by the temperature sensor corresponds to the first temperature, and identifies the threshold voltage of the light emitting diode using the second current value when the temperature sensed by the temperature sensor corresponds to the second temperature.

    Display device and driving method
    5.
    发明授权
    Display device and driving method 有权

    公开(公告)号：US12236877B2

    公开(公告)日：2025-02-25

    申请号：US18520043

    申请日：2023-11-27

    Applicant: LG Display Co., Ltd.

    Inventor： DongYoon Lee ,  InHyo Han

    IPC: G09G3/3233

    Abstract: A display device and a driving method thereof. While a turn-on gate signal is being supplied to a first gate line, a dummy voltage is supplied to a first type data line, and a first image frame voltage for expressing a first image frame line is supplied to a second type data line. The readability of an image frame is improved.

    Display device having light path controlling member
    6.
    发明授权
    Display device having light path controlling member 有权

    公开(公告)号：US12235472B2

    公开(公告)日：2025-02-25

    申请号：US17471987

    申请日：2021-09-10

    Applicant: LG DISPLAY CO., LTD.

    Inventor： Se-Jin Lee ,  Young-Woong Kim ,  Seung-Soo Yang ,  Min-Gyu Choi

    IPC: G02B30/32 ,  G06F1/16

    Abstract: A display device includes a display panel including a plurality of pixel regions and displaying a picture; and a light path controlling member located on a front surface of the display panel and transmitting the picture output from the display panel, wherein the light path controlling member includes a plurality of separation walls and a plurality of light path portions between the plurality of separation walls, and wherein a period of the light path portion is different from a period of the pixel region.

    Display apparatus including a cathode layer disconnecting structure
    9.
    发明授权
    Display apparatus including a cathode layer disconnecting structure 有权

    公开(公告)号：US12232353B2

    公开(公告)日：2025-02-18

    申请号：US17384395

    申请日：2021-07-23

    Applicant: LG Display Co., Ltd.

    Inventor： Byeong-Seong So

    IPC: H10K50/84 ,  H10K50/82 ,  H10K50/822 ,  H10K50/844 ,  H10K59/12 ,  H10K59/121 ,  G02F1/1333 ,  G02F1/1335 ,  H01L27/146 ,  H10K50/80 ,  H10K59/126 ,  H10K59/35

    Abstract: The present disclosure relates to a display apparatus. The display apparatus includes a plurality of light-transmitting areas disposed between the plurality of pixels. The light-transmitting area is formed between structures disposed in the light-emitting area adjacent to the light-transmitting area, and the structure physically disconnects a cathode layer of the light-emitting area and a cathode layer of the light-transmitting area. The cathode layer may be patterned in the light-transmitting area. Accordingly, when patterning is performed with a laser, it is possible to prevent the edge of the cathode layer from being curled in the outer portion of the light-transmitting area. In addition, it is possible to pattern with low energy and solve the damage due to thermal energy of the laser beam by preventing heat conduction to the light-emitting area of the light-emitting device layer. Further, it is possible to improve the reliability by blocking the moisture permeable path.

    DISPLAY DEVICE
    10.
    发明申请
    DISPLAY DEVICE 有权

    公开(公告)号：US20250056946A1

    公开(公告)日：2025-02-13

    申请号：US18794897

    申请日：2024-08-05

    Applicant: LG Display Co., Ltd.

    Inventor： Hye Sun JUNG ,  Bung Goo KIM ,  Hyoung Ho AHN ,  Hee Won LEE ,  Jun Young JO ,  Sang Hak SHIN ,  Jae Kwang LEE ,  Hyoung Sun PARK ,  Pyung Ho CHOI ,  Tae Yoon KIM

    IPC: H01L33/62 ,  H01L25/075 ,  H01L33/58

    Abstract: An embodiment of the present specification discloses a display device including a display panel including a display area and a non-display area adjacent to the display area and a metal dam disposed in the non-display area to surround at least three surfaces of the display panel. The display panel includes a substrate, a pixel driving circuit disposed on the substrate, and a light emitting element driven by the pixel driving circuit, the metal dam may be spaced a selected distance from an edge of the display panel, the metal dam may be formed of a plurality of metal layers connected through at least one hole, and the metal dam may include a first metal dam, a second metal dam, and a third metal dam that are disposed in the non-display area while surrounding at least three surfaces of the display area.

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