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    DISPLAY DEVICE AND DRIVING METHOD THEREOF
    1.
    发明申请
    DISPLAY DEVICE AND DRIVING METHOD THEREOF 有权

    公开(公告)号：US20220020334A1

    公开(公告)日：2022-01-20

    申请号：US17185155

    申请日：2021-02-25

    Applicant: SAMSUNG DISPLAY CO., LTD.

    Inventor： Won Tae KIM ,  Myeong Su KIM ,  Bo Yeon KIM ,  Jae Han LEE ,  Whee Won LEE

    IPC: G09G3/3275 ,  G09G3/3225

    Abstract: A display device includes a display panel including a plurality of pixels connected to data lines and sensing lines, a data driver including a plurality of buffer amplifiers which supplies a first sensing voltage to the data lines during a first sensing period and a sensor which receives a first sensing signal from the pixels through the sensing lines during the first sensing period, and a global amplifier which supplies a second sensing voltage to the data lines during a second sensing period different from the first sensing period. The sensor receives a second sensing signal corresponding to the second sensing voltage from the pixels through the sensing lines during the second sensing period, and generates compensation data based on a difference value between the first sensing signal and the second sensing signal.

    AMOLED DISPLAY DEVICE AND DRIVING METHOD THEREOF
    2.
    发明申请
    AMOLED DISPLAY DEVICE AND DRIVING METHOD THEREOF 有权
    AMOLED显示设备及其驱动方法

    公开(公告)号：US20150077314A1

    公开(公告)日：2015-03-19

    申请号：US14253725

    申请日：2014-04-15

    Applicant: Samsung Display Co., Ltd.

    Inventor： Bo Yeon KIM ,  Oh Jo KWON ,  Choong Sun SHIN

    IPC: G09G3/32

    CPC classification number: G09G3/3233 ,  G09G2300/0842 ,  G09G2320/045

    Abstract: A display device is disclosed. In one aspect, the display device includes a plurality of pixels, a plurality of data lines respectively connected to the pixels, and a compensation unit connected to at least one the data lines. The compensation unit includes a first capacitor storing a leakage current of a pixel connected to the data line, a second capacitor storing a difference current, where the difference current is the difference between a reference current and a pixel current measured when a data signal of a reference gray signal is applied to the pixel. The compensation unit also includes a comparator outputting a difference value between the voltages stored in the first and second capacitors. According to embodiments, is possible to measure an accurate pixel current regardless of a leakage current and accurately detect deterioration of a pixel.

    Abstract translation: 公开了一种显示装置。 一方面，显示装置包括多个像素，分别连接到像素的多条数据线以及连接到至少一条数据线的补偿单元。 补偿单元包括存储连接到数据线的像素的漏电流的第一电容器，存储差电流的第二电容器，其中差电流是参考电流与当a的数据信号之间测量的像素电流之间的差 将参考灰度信号应用于像素。 补偿单元还包括输出存储在第一和第二电容器中的电压之间的差值的比较器。 根据实施例，可以测量精确的像素电流，而不管漏电流如何，并准确地检测像素的劣化。

    SOURCE DRIVER AND DISPLAY DEVICE INCLUDING THE SAME
    3.
    发明申请
    SOURCE DRIVER AND DISPLAY DEVICE INCLUDING THE SAME 有权

    公开(公告)号：US20220101799A1

    公开(公告)日：2022-03-31

    申请号：US17215670

    申请日：2021-03-29

    Applicant: SAMSUNG DISPLAY CO., LTD.

    Inventor： Whee Won LEE ,  Myeong Su KIM ,  Bo Yeon KIM ,  Won Tae KIM ,  Jae Han LEE

    IPC: G09G3/3291 ,  G09G3/3266

    Abstract: A display device includes: a display panel including a plurality of pixels; a source driver for outputting a target initialization voltage in an analog format to the pixels through sensing lines; and a timing controller for providing the source driver with a data control signal including packet information associated with the target initialization voltage. The packet information is in a digital format. The source driver includes a digital-analog converter which generates the target initialization voltage in the analog format, based on the packet information.

    DISPLAY DEVICE AND DRIVING METHOD THEREOF
    6.
    发明申请
    DISPLAY DEVICE AND DRIVING METHOD THEREOF 有权

    公开(公告)号：US20210074194A1

    公开(公告)日：2021-03-11

    申请号：US16861926

    申请日：2020-04-29

    Applicant: Samsung Display Co., Ltd.

    Inventor： Si Duk SUNG ,  Sang Hyun LEE ,  Bo Yeon KIM

    IPC: G09G3/20

    Abstract: A display device includes a display panel, a power supply, a signal controller configured to generate first and second clock signals having a period, a clock signal generator configured to generate a gate clock signal that is raised to a high level voltage in synchronization with the first clock signal, and that falls to a low level voltage in synchronization with the second clock signal, generate a panel separation signal by comparing a voltage of the gate clock signal with a first reference voltage during a falling period during which the gate clock signal falls, and transfer the panel separation signal to the power supply or the signal controller, and a gate driver configured to sequentially apply a gate signal by using the gate clock signal, wherein the power supply or the signal controller is configured to stop outputting depending on the panel separation signal.

    DISPLAY DEVICE AND DRIVING METHOD THEREOF
    7.
    发明申请
    DISPLAY DEVICE AND DRIVING METHOD THEREOF 审中-公开

    公开(公告)号：US20190304397A1

    公开(公告)日：2019-10-03

    申请号：US16287499

    申请日：2019-02-27

    Applicant: Samsung Display Co., Ltd.

    Inventor： Tae Gon IM ,  Myeong Su KIM ,  Bo Yeon KIM ,  Sun Koo KANG ,  Yong Bum KIM ,  Dong Won PARK ,  Jung Hwan CHO

    IPC: G09G5/00 ,  G09G3/36 ,  G09G3/3275

    Abstract: A display device includes a timing controller configured to supply a first set signal to a data control signal line in a first frequency mode, and to supply a second set signal and a data signal to the data control signal line in a second frequency mode that is different from the first frequency mode, a data driver configured to recover the data signal supplied to the data control signal line according to a signal recovery characteristic value, to generate a plurality of data voltages based on the recovered data signal, and to adjust the signal recover characteristic value based on the first set signal and the second set signal, and a display unit including a plurality of pixels that emit lights with gray scales corresponding to the plurality of data voltages

    DISPLAY DEVICE AND DRIVING METHOD THEREOF
    8.
    发明申请
    DISPLAY DEVICE AND DRIVING METHOD THEREOF 审中-公开

    公开(公告)号：US20190147831A1

    公开(公告)日：2019-05-16

    申请号：US16045918

    申请日：2018-07-26

    Applicant: SAMSUNG DISPLAY CO., LTD.

    Inventor： Jae Han LEE ,  Myeong Su KIM ,  Sun Koo KANG ,  Bo Yeon KIM ,  Dong Won PARK ,  Tae Gon IM ,  Jung Hwan CHO

    IPC: G09G5/00 ,  G09G3/36 ,  G09G3/3275

    Abstract: A display device may include a timing controller, a data driver and a plurality of pixels. The timing controller supplies a clock training pattern over a data/clock signal line in a first time period, and supplies pixel/control data over the data/clock signal line in a second time period. The data driver generates a clock signal, using the clock training pattern, in the first period, and generate a plurality of data voltages based on the plurality of pixel data, using the clock signal, in the second period. The plurality of pixels receive the plurality of data voltages and emit corresponding light. During the second period, the data driver outputs a feedback signal to the timing controller indicating that the locking of the clock signal has failed. The timing controller re-supplies the clock training pattern in response to the feedback signal.

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