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    Display Device and Method of Driving the Same
    22.
    发明申请
    Display Device and Method of Driving the Same 有权
    显示装置及其驱动方法

    公开(公告)号：US20160189624A1

    公开(公告)日：2016-06-30

    申请号：US14975629

    申请日：2015-12-18

    Applicant: LG Display Co., Ltd.

    Inventor： Hoon Jang ,  Wonyong Jang

    IPC: G09G3/32 ,  G09G3/36

    CPC classification number: G09G3/3258 ,  G09G3/20 ,  G09G3/3648 ,  G09G3/3696 ,  G09G2310/0267 ,  G09G2310/063 ,  G09G2310/08 ,  G09G2320/0257 ,  G09G2330/02 ,  G09G2330/027

    Abstract: Embodiments relate to a display device and a method of operating the display device. The display device includes a power supply circuit configured to generate a gate voltage at an output terminal of the power supply circuit based on an input voltage to supply the gate signal to the pixels of the panel. The display device generates a switching pulse signal for a predetermined time period after the input voltage dropping below the predetermined threshold voltage. The display device generates the gate voltage at a first voltage level responsive to the switching pulse signal, the gate voltage at the first voltage level higher than the gate voltage at a second voltage level absent the switching pulse signal. Charges stored in pixels are discharged by applying the gate voltage to the pixels through gate lines, responsive to the input voltage dropping below the predetermined threshold voltage.

    Abstract translation: 实施例涉及显示装置和操作显示装置的方法。 显示装置包括：电源电路，被配置为基于输入电压在电源电路的输出端产生栅极电压，以将栅极信号提供给面板的像素。 显示装置在输入电压下降到预定阈值电压之前的预定时间周期内产生开关脉冲信号。 所述显示装置响应于所述开关脉冲信号，以不存在所述开关脉冲信号的第二电压电平，将所述栅极电压以比所述栅极电压高的第一电压电平产生第一电压电平。 响应于输入电压下降到预定阈值电压以下，通过栅极线将栅极电压施加到像素来放电存储在像素中的电荷。

    Display device
    23.
    发明授权
    Display device 有权

    公开(公告)号：US12051357B2

    公开(公告)日：2024-07-30

    申请号：US18201011

    申请日：2023-05-23

    Applicant: LG Display Co., Ltd.

    Inventor： Hoon Jang ,  Sang-Uk Lee ,  Taehwa Park ,  SoonDong Cho ,  Wonyong Jang

    IPC: G09G3/20 ,  G09G3/36 ,  H02M3/156 ,  H02M3/158

    CPC classification number: G09G3/2096 ,  G09G3/3696 ,  H02M3/156 ,  H02M3/158 ,  H02M3/1582 ,  G09G2310/0291 ,  G09G2310/0297 ,  G09G2330/021 ,  G09G2360/10

    Abstract: A power supply includes a first converter configured to convert an input voltage into a first output voltage, a first feedback circuit configured to output a first pulse width modulation (PWM) signal to the first converter to control a level of the first output voltage, and a mode controller configured to compare the input voltage and a reference voltage and determine whether the first converter operates in a first mode or a second mode based on the compared result. When the input voltage is less than or equal to the reference voltage, the first converter boosts the input voltage and outputs the boosted voltage as the first output voltage in the first mode. Further, when the input voltage is greater than the reference voltage, the first converter bypasses the input voltage and outputs the bypassed voltage as the first output voltage in the second mode.

    Display device
    24.
    发明授权
    Display device 有权

    公开(公告)号：US11699384B2

    公开(公告)日：2023-07-11

    申请号：US17941903

    申请日：2022-09-09

    Applicant: LG Display Co., Ltd.

    Inventor： Hoon Jang ,  Sang-Uk Lee ,  Taehwa Park ,  SoonDong Cho ,  Wonyong Jang

    IPC: G09G3/20

    CPC classification number: G09G3/2096 ,  G09G2310/0291 ,  G09G2310/0297 ,  G09G2330/021 ,  G09G2360/10

    Abstract: A display device can include a display panel having a plurality of pixels disposed on a substrate, and a power supplier configured to supply a driving voltage to the display panel. The power supplier can include a first converter configured to receive an input voltage supplied from an external system and convert the input voltage into a boost voltage, a second converter configured to convert the boost voltage into the driving voltage, a first feedback unit configured to output a first pulse width modulation (PWM) signal to the first converter so that the boost voltage is proportional to a first reference voltage, and a second feedback unit configured to output a second PWM signal to the second converter so that the driving voltage is proportional to a second reference voltage.

    Level shifter and display device
    25.
    发明授权
    Level shifter and display device 有权

    公开(公告)号：US11386827B1

    公开(公告)日：2022-07-12

    申请号：US17458118

    申请日：2021-08-26

    Applicant: LG Display Co., Ltd.

    Inventor： Hoon Jang ,  Soondong Cho

    IPC: G09G3/20

    Abstract: Embodiments of the present disclosure relate to a level shifter and a display device capable of differently controlling a signal waveform between a first clock signal and a second clock signal used to output a first gate signal and a second gate signal. Accordingly, it is possible to reduce the variation in output characteristics between the first gate signal and the second gate signal, thereby improving image quality.

    Display device and method of driving the same
    28.
    发明授权
    Display device and method of driving the same 有权

    公开(公告)号：US10008152B2

    公开(公告)日：2018-06-26

    申请号：US14975629

    申请日：2015-12-18

    Applicant: LG Display Co., Ltd.

    Inventor： Hoon Jang ,  Wonyong Jang

    IPC: G09G5/00 ,  G09G3/3258 ,  G09G3/20 ,  G09G3/36

    CPC classification number: G09G3/3258 ,  G09G3/20 ,  G09G3/3648 ,  G09G3/3696 ,  G09G2310/0267 ,  G09G2310/063 ,  G09G2310/08 ,  G09G2320/0257 ,  G09G2330/02 ,  G09G2330/027

    Abstract: Embodiments relate to a display device and a method of operating the display device. The display device includes a power supply circuit configured to generate a gate voltage at an output terminal of the power supply circuit based on an input voltage to supply the gate signal to the pixels of the panel. The display device generates a switching pulse signal for a predetermined time period after the input voltage dropping below the predetermined threshold voltage. The display device generates the gate voltage at a first voltage level responsive to the switching pulse signal, the gate voltage at the first voltage level higher than the gate voltage at a second voltage level absent the switching pulse signal. Charges stored in pixels are discharged by applying the gate voltage to the pixels through gate lines, responsive to the input voltage dropping below the predetermined threshold voltage.

    Display device and data driving circuit thereof
    29.
    发明授权
    Display device and data driving circuit thereof 有权
    显示装置及数据驱动电路

    公开(公告)号：US09245490B1

    公开(公告)日：2016-01-26

    申请号：US14733643

    申请日：2015-06-08

    Applicant: LG Display Co., Ltd.

    Inventor： Soondong Cho ,  Hoon Jang ,  Hoonbae Kim

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

    CPC classification number: G09G3/3655 ,  G06F3/0412 ,  G06F3/0418 ,  G06F3/044 ,  G09G3/3614 ,  G09G3/3688 ,  G09G2310/0291

    Abstract: A touch display device includes a timing controller to generate a sync signal for controlling timing of a touch sensor driving period and a display driving period, where the display driving period comprises a first phase to drive odd signal lines according to a first polarity and to drive even signal lines according to a second polarity, a second phase to drive the odd signal lines according to the second polarity and to drive the even signal lines according to the first polarity, and a charge share period between the first phase and the second phase. A set of charge sharing switches couple the odd and even signal lines together during the charge share period and couple the odd and even signal lines together during the touch sensor driving period.

    Abstract translation: 触摸显示装置包括：时序控制器，用于产生用于控制触摸传感器驱动时段的定时的同步信号和显示驱动周期，其中显示驱动周期包括根据第一极性驱动奇数信号线的第一相，并驱动 根据第二极性的偶数信号线，根据第二极性驱动奇数信号线的第二相，并根据第一极性驱动偶数信号线，以及第一相和第二相之间的电荷共享周期。 一组电荷共享开关在电荷共享周期期间将奇数和偶数信号线耦合在一起，并且在触摸传感器驱动周期期间将奇数和偶数信号线耦合在一起。

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