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    Display Apparatus and Overcurrent Detection Method Thereof
    1.
    发明公开
    Display Apparatus and Overcurrent Detection Method Thereof 审中-公开

    公开(公告)号：US20230196955A1

    公开(公告)日：2023-06-22

    申请号：US17961551

    申请日：2022-10-06

    Applicant: LG Display Co., Ltd.

    Inventor： Won Yong Jang ,  Soon Dong Cho ,  Hoon Jang ,  Jung Jae Kim ,  Dong Ju Kim

    IPC: G09G3/00

    CPC classification number: G09G3/006 ,  G09G2310/08 ,  G09G2330/028 ,  G09G2310/0286 ,  G09G2330/12

    Abstract: A display apparatus includes a display panel driven based on a first gate clock and a second gate clock, a clock supply circuit including a first output terminal for an output of the first gate clock and a second output terminal for an output of the second gate clock, supplying the first output terminal with one of a gate high voltage and a gate low voltage as a first test voltage, and supplying the second output terminal with the other of the gate high voltage and the gate low voltage as a second test voltage, for a first time immediately after a system power is applied thereto, a power generator generating the gate high voltage and the gate low voltage and supplying the gate high voltage and the gate low voltage to the clock supply circuit, and an overcurrent detector receiving a flag signal to recognize overcurrent from the power generator to shut down the power generator, when the first output terminal and the second output terminal are short-circuited with each other at the first time interval.

    Level shifter and display device using the same
    3.
    发明授权
    Level shifter and display device using the same 有权

    公开(公告)号：US11094280B2

    公开(公告)日：2021-08-17

    申请号：US16930951

    申请日：2020-07-16

    Applicant: LG Display Co., Ltd.

    Inventor： Hoon Jang ,  Juno Hur ,  Dong Ju Kim ,  Soon Dong Cho

    IPC: G09G3/36

    Abstract: The present disclosure relates to a level shifter and a display device using the same, and the level shifter includes a first transistor configured to increase a voltage of an output signal, a second transistor configured to lower a voltage of the output signal, a first driver configured to vary a gate voltage of the first transistor in response to a first Vgs signal being varied within a transition time of the output signal, and a second driver configured to vary a gate voltage of the second transistor in response to a second Vgs signal being varied within a transition time of the output signal.

    Display device including compensation for current difference between circuit boards, and method of driving the same
    4.
    发明授权
    Display device including compensation for current difference between circuit boards, and method of driving the same 有权

    公开(公告)号：US12217681B2

    公开(公告)日：2025-02-04

    申请号：US18382942

    申请日：2023-10-23

    Applicant: LG Display Co., Ltd.

    Inventor： Dong Ju Kim ,  Won Yong Jang

    IPC: G09G3/3233 ,  G09G3/20

    Abstract: A display device includes a display panel configured to display images, a plurality of circuit boards connected to one side of the display panel, a cable electrically connecting at least two of the plurality of circuit boards, voltage lines disposed on the cable, the plurality of circuit boards, and the display panel, a deviation compensation circuit configured to sense voltages transmitted through a circuit board on one side and a circuit board on the other side connected by the cable among the plurality of circuit boards and to output a signal based on the sensed voltages, and a variable circuit configured to compensate for a current difference between the circuit board on one side and the circuit board on the other side based on the signal output from the deviation compensation circuit.

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