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    DISPLAY DEVICE
    1.
    发明公开
    DISPLAY DEVICE 审中-公开

    公开(公告)号：US20240135867A1

    公开(公告)日：2024-04-25

    申请号：US18368371

    申请日：2023-09-13

    Applicant: LG Display Co., Ltd.

    Inventor： Taehun KIM ,  WooKyu SANG ,  Moonsoo CHUNG

    IPC: G09G3/32

    CPC classification number: G09G3/32 ,  G09G2310/0267 ,  G09G2320/0233 ,  G09G2320/0252

    Abstract: A display device can include a light emitting element and a pixel circuit including a driving transistor; a first capacitor connected between the driving transistor and a first node; a first transistor connected between the first capacitor and a data line to operate based on a first scan signal; a first light emission transistor connected between the first capacitor and a reference voltage line to operate based on a light emission signal; and a second light emission transistor connected between the driving transistor and a low-potential voltage line to operate based on the light emission signal. The first scan signal sequentially includes a dummy scan signal section and driving scan signal section for turning on the first transistor, and the light emission signal includes a coupling period for turning on the first and second light emission transistors between the dummy scan signal section and the driving scan signal section.

    DISPLAY DEVICE AND DISPLAY DRIVING METHOD
    2.
    发明公开
    DISPLAY DEVICE AND DISPLAY DRIVING METHOD 审中-公开

    公开(公告)号：US20240029626A1

    公开(公告)日：2024-01-25

    申请号：US18221610

    申请日：2023-07-13

    Applicant: LG Display Co., Ltd.

    Inventor： Taehun KIM ,  WooKyu SANG ,  Moonsoo CHUNG

    IPC: G09G3/20 ,  G09G3/3233

    CPC classification number: G09G3/2096 ,  G09G3/3233 ,  G09G3/2007 ,  G09G2300/0842 ,  G09G2300/0819 ,  G09G2300/0861 ,  G09G2310/0262 ,  G09G2310/08 ,  G09G2340/0442 ,  G09G2320/0247

    Abstract: A display device can include a light-emitting element, a driving transistor providing a driving current to the light-emitting element using a driving voltage, and a plurality of switching transistors controlling driving of the driving transistor are disposed on a display panel. A gate driving circuit supplies scan signals to the display panel through gate lines. An emission driving circuit supplies a plurality of emission signals to the display panel through a plurality of emission signal lines. A data driving circuit supplies a data voltage to the display panel. A timing controller divides the display panel into a plurality of blocks and controls a level of a bias voltage applied to the driving transistor of a corresponding block among the plurality of blocks according to a grayscale of the data voltage supplied to the corresponding block in a low-speed mode operating at a low-speed driving frequency.

    Display Device and Method of Driving the Same
    4.
    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：US20160035297A1

    公开(公告)日：2016-02-04

    申请号：US14750987

    申请日：2015-06-25

    Applicant: LG Display Co., Ltd.

    Inventor： Daeseok OH ,  Sangsoon YOON ,  Yonghwa PARK ,  Seunghwan SHIN ,  Moonsoo CHUNG

    IPC: G09G3/36 ,  G09G5/00

    CPC classification number: G09G3/3618 ,  G09G3/2092 ,  G09G3/2096 ,  G09G5/006 ,  G09G2310/061 ,  G09G2310/08 ,  G09G2320/103 ,  G09G2330/021 ,  G09G2340/0435

    Abstract: A display device and method of driving the same are disclosed. The display device that transmits signals between a system board section and a circuit board section through an interface and uses Panel Self-Refresh (hereinafter, abbreviated as ‘PSR’) to reduce power consumption, the circuit board section comprising a PSR controller that, when a PSR On signal is supplied from the system board section, changes the operating frequency of a gate driver and data driver to a frequency higher than a reference frequency for driving the panel with PSR On, set by the system board section.

    Abstract translation: 公开了一种显示装置及其驱动方法。 通过接口在系统板部分和电路板部分之间传输信号并使用面板自刷新（以下简称为“PSR”）以降低功耗的显示装置，电路板部分包括PSR控制器，当时 从系统板部分提供PSR On信号，将门驱动器和数据驱动器的工作频率更改为高于用于通过系统板部分设置的PSR On驱动面板的参考频率的频率。

    DISPLAY DEVICE
    5.
    发明公开
    DISPLAY DEVICE 失效

    公开(公告)号：US20240233621A9

    公开(公告)日：2024-07-11

    申请号：US18368371

    申请日：2023-09-14

    Applicant: LG Display Co., Ltd.

    Inventor： Taehun KIM ,  WooKyu SANG ,  Moonsoo CHUNG

    IPC: G09G3/32

    CPC classification number: G09G3/32 ,  G09G2310/0267 ,  G09G2320/0233 ,  G09G2320/0252

    Abstract: A display device can include a light emitting element and a pixel circuit including a driving transistor; a first capacitor connected between the driving transistor and a first node; a first transistor connected between the first capacitor and a data line to operate based on a first scan signal; a first light emission transistor connected between the first capacitor and a reference voltage line to operate based on a light emission signal; and a second light emission transistor connected between the driving transistor and a low-potential voltage line to operate based on the light emission signal. The first scan signal sequentially includes a dummy scan signal section and driving scan signal section for turning on the first transistor, and the light emission signal includes a coupling period for turning on the first and second light emission transistors between the dummy scan signal section and the driving scan signal section.

    DISPLAY DEVICE WITH BUILT-IN TOUCH SENSORS
    6.
    发明申请
    DISPLAY DEVICE WITH BUILT-IN TOUCH SENSORS 审中-公开

    公开(公告)号：US20190155431A1

    公开(公告)日：2019-05-23

    申请号：US16192588

    申请日：2018-11-15

    Applicant: LG Display Co., Ltd.

    Inventor： Joohee LEE ,  Moonsoo CHUNG ,  Yonghwa PARK

    IPC: G06F3/041 ,  H03M1/12 ,  G09G3/22

    Abstract: A display device with built-in touch sensors comprises: a display panel with built-in touch sensors; and a touch driver that converts a sensed voltage of the touch sensors into sensed data, wherein the touch driver comprises: an enable signal generator that compares the sensed voltage with a preset offset voltage and outputs an enable signal at a first level if the sensed voltage is higher than or equal to the offset voltage and outputs the enable signal at a second level if the sensed voltage is lower than the offset voltage; and an analog-to-digital converter that converts the sensed voltage into the sensed data when the enable signal is at the first level.

    DISPLAY DEVICE
    7.
    发明申请
    DISPLAY DEVICE 审中-公开

    公开(公告)号：US20200159385A1

    公开(公告)日：2020-05-21

    申请号：US16655824

    申请日：2019-10-17

    Applicant: LG Display Co., Ltd.

    Inventor： Moonsoo CHUNG ,  Joohee LEE

    IPC: G06F3/041 ,  G06F3/042 ,  G09G3/20

    Abstract: The display device of the present disclosure may comprise a display panel equipped with pixels each representing image data and photo sensors each outputting an electric signal through a sensing line responding to light, a data driving circuit providing a data voltage corresponding to the image data to the pixel through a data line, a gate driving circuit supplying, through a gate line, a scan signal for controlling an application of the data voltage to the pixel disposed on a horizontal line and for controlling a connection of the photo sensor disposed on a corresponding horizontal line and the sensing line, a sensing driving circuit outputting digital sensing data by summing the electric signals of two photo sensors disposed on different horizontal lines and sharing the sensing line; and a timing controller supplying control signals for controlling the data driving circuit, the gate driving circuit and the sensing driving circuit.

    DISPLAY DEVICE HAVING OPTICAL SENSOR
    8.
    发明申请
    DISPLAY DEVICE HAVING OPTICAL SENSOR 审中-公开

    公开(公告)号：US20190012967A1

    公开(公告)日：2019-01-10

    申请号：US15842775

    申请日：2017-12-14

    Applicant: LG DISPLAY CO., LTD.

    Inventor： Joohee LEE ,  Moonsoo CHUNG

    IPC: G09G3/34 ,  G09G3/36

    Abstract: Disclosed is a display device having a plurality of gate lines, a plurality of pixels connected with the plurality of gate lines and an optical sensor connected with a k-th gate line among the plurality of gate lines. A gate pulse applied to the k-th gate line includes a sensing gate pulse applied during a (k−i)-th horizontal period and a pixel driving gate pulse applied during a k-th horizontal period. The optical sensor connected with the k-th gate line outputs a sensing voltage in response to the sensing gate pulse. The pixel connected with the k-th gate line is applied with a data voltage in response to the pixel driving gate pulse.

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