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    Display device, data driver and timing controller
    3.
    发明授权
    Display device, data driver and timing controller 有权

    公开(公告)号：US12131707B2

    公开(公告)日：2024-10-29

    申请号：US18535506

    申请日：2023-12-11

    Applicant: LG Display Co., Ltd.

    Inventor： Ri Yu ,  Myoungjae Kang ,  Bonghwan Kim ,  Unseon Lee

    IPC: G09G3/3275 ,  G09G3/3266

    CPC classification number: G09G3/3275 ,  G09G3/3266 ,  G09G2310/0289 ,  G09G2310/08 ,  G09G2320/041 ,  G09G2330/021 ,  G09G2330/04

    Abstract: A display apparatus may include a first drive circuit configured to output a driving signal, the driving signal including a first period during which the driving signal has a first value, a second period during which the driving signal has a second value different from the first value, and a third period during which the driving signal has a third value between the first value and the second value; a second drive circuit configured to receive the driving signal and generate a gate signal based on the driving signal; and a display panel including a light emitting device that is configured to emit light based on the gate signal, wherein a length of at least one of the first period, the second period, or the third period is adjustable based on a temperature associated with the display apparatus.

    Display Device, Driving Circuit and Display Driving Method
    5.
    发明申请
    Display Device, Driving Circuit and Display Driving Method 有权

    公开(公告)号：US20230074067A1

    公开(公告)日：2023-03-09

    申请号：US17743147

    申请日：2022-05-12

    Applicant: LG Display Co., Ltd.

    Inventor： Ri Yu ,  SangHyun Lim ,  Myoungjae Kang ,  Bonghwan Kim

    IPC: G09G3/3258 ,  G09G3/3291

    Abstract: Embodiments of the present disclosure relate to a display device, comprising: a display panel in which a plurality of driving voltage feedback lines branched from a driving voltage line for supplying a driving voltage to a plurality of subpixels are disposed; a driving circuit for supplying a data voltage to the plurality of subpixels and determining a deviation of a feedback driving voltage detected through the plurality of driving voltage feedback lines; and a timing controller for compensating for image data depending on positions at which the plurality of driving voltage feedback lines are branched in the display panel based on the deviation of the feedback driving voltage, and supplying a compensated image data to the driving circuit.

    Display Device, Data Driver and Timing Controller
    6.
    发明公开
    Display Device, Data Driver and Timing Controller 审中-公开

    公开(公告)号：US20240112641A1

    公开(公告)日：2024-04-04

    申请号：US18535506

    申请日：2023-12-11

    Applicant: LG Display Co., Ltd.

    Inventor： Ri Yu ,  Myoungjae Kang ,  Bonghwan Kim ,  Unseon Lee

    IPC: G09G3/3275 ,  G09G3/3266

    CPC classification number: G09G3/3275 ,  G09G3/3266 ,  G09G2310/0289 ,  G09G2310/08 ,  G09G2320/041 ,  G09G2330/021 ,  G09G2330/04

    Abstract: A display apparatus may include a first drive circuit configured to output a driving signal, the driving signal including a first period during which the driving signal has a first value, a second period during which the driving signal has a second value different from the first value, and a third period during which the driving signal has a third value between the first value and the second value; a second drive circuit configured to receive the driving signal and generate a gate signal based on the driving signal; and a display panel including a light emitting device that is configured to emit light based on the gate signal, wherein a length of at least one of the first period, the second period, or the third period is adjustable based on a temperature associated with the display apparatus.

    Display Device, Data Driver and Timing Controller
    8.
    发明公开
    Display Device, Data Driver and Timing Controller 审中-公开

    公开(公告)号：US20230186861A1

    公开(公告)日：2023-06-15

    申请号：US17994616

    申请日：2022-11-28

    Applicant: LG Display Co., Ltd.

    Inventor： Ri Yu ,  Myoungjae Kang ,  Bonghwan Kim ,  Unseon Lee

    IPC: G09G3/3275 ,  G09G3/3266

    CPC classification number: G09G3/3275 ,  G09G3/3266 ,  G09G2310/08 ,  G09G2310/0289 ,  G09G2330/021 ,  G09G2330/04 ,  G09G2320/041

    Abstract: A display apparatus may include a first drive circuit configured to output a driving signal, the driving signal including a first period during which the driving signal has a first value, a second period during which the driving signal has a second value different from the first value, and a third period during which the driving signal has a third value between the first value and the second value; a second drive circuit configured to receive the driving signal and generate a gate signal based on the driving signal; and a display panel including a light emitting device that is configured to emit light based on the gate signal, wherein a length of at least one of the first period, the second period, or the third period is adjustable based on a temperature associated with the display apparatus.

    Luminance compensation device and electroluminescence display using the same
    9.
    发明授权
    Luminance compensation device and electroluminescence display using the same 有权

    公开(公告)号：US11062649B2

    公开(公告)日：2021-07-13

    申请号：US16730508

    申请日：2019-12-30

    Applicant: LG DISPLAY CO., LTD.

    Inventor： Bonghwan Kim ,  Daekyung Kim

    IPC: G09G3/3225 ,  G09G3/3275

    Abstract: A luminance compensation device can include a luminance compensator configured to: receive a pixel driving voltage from a host system, the pixel driving voltage being supplied to both the luminance compensator and a display panel, receive a reference pixel driving voltage generated by a drive IC, compare the pixel driving voltage with the reference pixel driving voltage to detect a voltage drop in the pixel driving voltage, the voltage drop being a difference between the pixel driving voltage and the reference pixel driving voltage, amplify the voltage drop of the pixel driving voltage by a predetermined weighted value to generate an amplified voltage drop, and adjust a gamma reference voltage based on the amplified voltage drop to generate an adjusted gamma reference voltage.

    Display device, driving circuit and display driving method
    10.
    发明授权
    Display device, driving circuit and display driving method 有权

    公开(公告)号：US12159586B2

    公开(公告)日：2024-12-03

    申请号：US18462093

    申请日：2023-09-06

    Applicant: LG Display Co., Ltd.

    Inventor： Won-Seok Song ,  Bonghwan Kim ,  Sunhwan Kim ,  Mirae Shin

    IPC: G09G3/3233 ,  G09G3/20 ,  G09G3/3291

    Abstract: A display device comprises: a display panel including a light emitting element, a driving transistor providing a driving current to the light emitting element using a high potential driving voltage and switching transistors controlling the driving transistor; a gate driving circuit supplying scan signals to the display panel; a data driving circuit generating a data voltage or a bias voltage using a feedback high potential driving voltage transmitted through a high potential driving voltage feedback line; and a timing controller controlling the gate driving circuit and the data driving circuit so that the data voltage is supplied to the display panel in a first period at a low speed mode which the display panel is driven at predetermined driving frequency less than a frequency of a high speed mode and the bias voltage is supplied to the display panel in a second period at a low speed mode.

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