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    Display device with intra-interface for simple signal transmittal path
    1.
    发明授权
    Display device with intra-interface for simple signal transmittal path 有权

    公开(公告)号：US11475843B2

    公开(公告)日：2022-10-18

    申请号：US17124116

    申请日：2020-12-16

    Applicant: LG Display Co., Ltd.

    Inventor： Soon-Dong Cho ,  Jung-Jae Kim ,  Min-Gyu Park ,  Jae-Won Han ,  Dong-Won Park

    IPC: G09G3/3266 ,  G09G3/3275

    Abstract: A display device includes a display panel including pixels, and data lines and gate lines connected to the pixels, a timing controller configured to output source driving bit information and gate driving bit information through an intra-interface signal, a source driver configured to generate data driving signal based on the source driving bit information and to supply the data driving signal to the data lines, and a gate driver configured to generate a gate driving signal based on the gate driving bit information and to supply the gate driving signal to the gate lines, wherein the intra-interface signal is configured with predetermined data transmission units and includes both the source driving bit information and the gate driving bit information every 1 data transmission unit.

    Display device
    2.
    发明授权
    Display device 有权

    公开(公告)号：US11069301B2

    公开(公告)日：2021-07-20

    申请号：US16225753

    申请日：2018-12-19

    Applicant: LG Display Co., Ltd.

    Inventor： Soon-Dong Cho ,  Jung-Jae Kim ,  Sang-Uk Lee ,  Hyung-Jin Choe

    IPC: G09G3/3275 ,  G09G3/36 ,  G09G3/20

    Abstract: A display device can include a gate driver configured to drive gate lines of a panel; a data driver configured to drive data lines of the panel; a timing controller configured to control operations of the gate driver and the data driver; and a level shifter integrated circuit (IC) configured to receive a plurality of control signals from the timing controller, and generate and output a plurality gate control signals for controlling driving of the gate driver, in which the plurality of control signals include an on clock and an off clock, and the level shifter IC stores the on clock and the off clock in buffers based on one or more control signals from the timing controller, generates a plurality of scan clocks by logically processing the on clock and the off clock, and outputs the plurality of scan clocks to the gate driver.

    Organic light-emitting diode display device and method of driving the same
    3.
    发明授权
    Organic light-emitting diode display device and method of driving the same 有权

    公开(公告)号：US10460666B2

    公开(公告)日：2019-10-29

    申请号：US15839052

    申请日：2017-12-12

    Applicant: LG DISPLAY CO., LTD.

    Inventor： Jung-Jae Kim

    IPC: H01L29/08 ,  G09G3/3258 ,  G09G3/3233 ,  G09G3/3291 ,  G09G3/3266

    Abstract: An organic light-emitting diode (OLED) display device can include a pixel and a data driver. The pixel includes a driving thin film transistor (TFT) to drive an OLED element, a first switching TFT to connect a data line to a gate electrode of the driving TFT, a second switching TFT to connect a reference line to a source electrode of the driving TFT and a capacitor connected between the gate electrode and the source electrode of the driving TFT. The data driver includes a first amplifier to drive the data line with a reference voltage or a data voltage, a second amplifier to drive the reference line with an initialization voltage, and a third amplifier to sense a voltage of the reference line and supply a reference sensing voltage to the second amplifier, in which the reference line voltage is based on a threshold voltage of the driving TFT.

    Organic light emitting diode display device having a target current setting
    4.
    发明授权
    Organic light emitting diode display device having a target current setting 有权

    公开(公告)号：US10297194B2

    公开(公告)日：2019-05-21

    申请号：US15390162

    申请日：2016-12-23

    Applicant: LG DISPLAY CO., LTD.

    Inventor： Jung-Jae Kim

    IPC: G09G3/3233

    Abstract: Disclosed is an organic light emitting diode (OLED) display device. The OLED display device includes a target current setting unit connected to a pixel via a data line, to set a target current meeting a data voltage during a sampling period before a holding period to a target current to drive an OLED element during the holding period. The pixel includes a drive thin film transistor (TFT) for driving the OLED element, a first switching TFT to connect the drive TFT to a first power line for the sampling period such that the drive TFT serves as a diode, a second switching TFT to connect a source electrode of the drive TFT to the data line for the sampling period, and a capacitor connected between gate and source electrodes of the drive TFT, to store a drive voltage for the drive TFT determined based on the target current.

    Display device and interface method thereof
    8.
    发明授权
    Display device and interface method thereof 有权

    公开(公告)号：US10726766B2

    公开(公告)日：2020-07-28

    申请号：US16198131

    申请日：2018-11-21

    Applicant: LG Display Co., Ltd.

    Inventor： Soon-Dong Cho ,  Jung-Jae Kim ,  Jae-Won Han ,  Hyung-Jin Choe

    IPC: G09G3/20 ,  G09G3/3266 ,  G09G3/3275 ,  G09G3/36

    Abstract: Disclosed herein are a display device capable of reducing the number of transmission lines by enabling a master circuit to perform communication with a plurality of slave circuits, which utilize different interfaces, through a common transmission line in a time divisional manner, and an interface method thereof. A timing controller uses a common transmission line of a gamma voltage generator and a level shifter which respectively utilize first and second interfaces and perform communication using the first and second interfaces in a time divisional manner.

    Organic light-emitting diode display device and method of driving the same
    9.
    发明授权
    Organic light-emitting diode display device and method of driving the same 有权

    公开(公告)号：US10699644B2

    公开(公告)日：2020-06-30

    申请号：US16574827

    申请日：2019-09-18

    Applicant: LG DISPLAY CO., LTD.

    Inventor： Jung-Jae Kim

    IPC: H01L21/00 ,  G09G3/3258 ,  G09G3/3266 ,  G09G3/3291 ,  G09G3/3233

    Abstract: A method of driving an organic light-emitting diode (OLED) display device can include, during an initialization period, supplying a reference voltage (Vref), via a first amplifier, to a gate electrode of a driving thin film transistor (TFT) connected to an OLED element and charging an initialization voltage in a source electrode of the driving TFT; during a sensing period, supplying the reference voltage (Vref), via the first amplifier, to the gate electrode of the driving TFT, and charging the source electrode of the driving TFT from the initialization voltage to a reference sensing voltage based on the reference voltage (Vref) minus a threshold voltage (Vth) of the driving TFT; and during a sampling period, supplying a data voltage (Vdata), via the first amplifier, to the gate electrode of the driving TFT, sensing the reference sensing voltage, via a third amplifier, and supplying the reference sensing voltage, via a second amplifier, to the source electrode of the driving TFT.

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