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    Electronic device with improved overcurrent protection reliability and method for driving the same
    51.
    发明授权
    Electronic device with improved overcurrent protection reliability and method for driving the same 有权

    公开(公告)号：US11501702B2

    公开(公告)日：2022-11-15

    申请号：US17335501

    申请日：2021-06-01

    Applicant: Samsung Display Co., Ltd.

    Inventor： Wonjin Seo ,  Eunjin Choi ,  Kihyun Pyun

    IPC: G09G3/3208 ,  H01L27/32

    Abstract: An electronic device includes a display panel which includes a plurality of light emitting elements and in which a plurality of areas is defined based on the plurality of light emitting elements, a compensation unit which calculates compensation values for image data provided to each of the plurality of areas, and a control unit which controls the output of the image data provided to the display panel based on the compensation values and the image data, where the control unit may include a correction unit which outputs a correction ratio of each of the plurality of areas based on the compensation values and a comparison unit which determines whether an input current of the image data is in a normal range based on the correction ratio.

    ORGANIC LIGHT-EMITTING DIODE DISPLAY DEVICE PERFORMING A SENSING OPERATION, AND METHOD OF SENSING DEGRADATION OF AN ORGANIC LIGHT-EMITTING DIODE DISPLAY DEVICE
    52.
    发明申请
    ORGANIC LIGHT-EMITTING DIODE DISPLAY DEVICE PERFORMING A SENSING OPERATION, AND METHOD OF SENSING DEGRADATION OF AN ORGANIC LIGHT-EMITTING DIODE DISPLAY DEVICE 有权

    公开(公告)号：US20220013049A1

    公开(公告)日：2022-01-13

    申请号：US17211370

    申请日：2021-03-24

    Applicant: SAMSUNG DISPLAY CO., LTD.

    Inventor： Kihyun Pyun ,  Siduk Sung

    IPC: G09G3/00 ,  G09G3/3283

    Abstract: An organic light-emitting diode (OLED) display device includes a display panel including a plurality of pixels, the plurality of pixels being grouped into a plurality of pixel blocks, a nonvolatile memory configured to store previous accumulated block degradation information for the plurality of pixel blocks up to a previous driving period, a controller configured to calculate current block degradation information for the plurality of pixel blocks in a current driving period, to calculate current accumulated block degradation information for the plurality of pixel blocks up to the current driving period by adding the current block degradation information to the previous accumulated block degradation information in response to a power control signal indicating a power-off, and to determine whether a sensing operation for each of the plurality of pixel blocks is to be performed by comparing the current accumulated block degradation information for each of the plurality of pixel blocks with a sensing reference degradation amount, and a sensing circuit configured to selectively perform the sensing operation for each of the plurality of pixel blocks.

    Driving controller, display apparatus including the same and method of driving display panel using the same
    53.
    发明授权
    Driving controller, display apparatus including the same and method of driving display panel using the same 有权

    公开(公告)号：US11170691B2

    公开(公告)日：2021-11-09

    申请号：US17149610

    申请日：2021-01-14

    Applicant: Samsung Display Co., Ltd.

    Inventor： Kihyun Pyun ,  Wonjin Seo ,  Eunjin Choi

    IPC: G09G3/20

    Abstract: A driving controller set includes a net power control setter, a data clamper, a data line, and a data driver. The net power control setter may determine a first scale factor for adjusting a grayscale value of (N+1)-th frame data based on a load of N-th frame data and a net power control reference value. N is an integer equal to or greater than two. The data clamper may determine a second scale factor for adjusting a grayscale value of the N-th frame data based on a load of (N−1)-th frame data and the N-th frame data. A data signal may be generated using the first scale factor and/or the second scale factor. The data line may include a conductive material. The data driver may convert the data signal into a data voltage and may output the data voltage to the data line.

    Display apparatus
    56.
    发明授权
    Display apparatus 有权

    公开(公告)号：US10650721B2

    公开(公告)日：2020-05-12

    申请号：US15945263

    申请日：2018-04-04

    Applicant: Samsung Display Co., Ltd.

    Inventor： Kihyun Pyun ,  Hyeon-Do Park

    IPC: G09G3/20 ,  G09G3/36

    Abstract: A display apparatus includes a display panel including a plurality of first gate lines, a first gate driver connected to first ends of the plurality of first gate lines, a second gate driver connected to second ends of the plurality of first gate lines, a feedback line connected adjacent to the first end of one of the plurality of first gate lines, and a gate delay sensing circuit connected to the feedback line. The gate delay sensing circuit includes a time-to-digital converter and a digital comparator. The time-to-digital converter converts an activation time of a feedback gate signal into a digital activation value. The feedback gate signal is retrieved from the feedback line. The digital comparator generates a digital delay value based on the digital activation value. The digital delay value indicates resistive-capacitive (“RC”) delay of the one of the plurality of first gate lines connected to the feedback line.

    Display apparatus and operation method thereof
    57.
    发明授权
    Display apparatus and operation method thereof 有权

    公开(公告)号：US09824652B2

    公开(公告)日：2017-11-21

    申请号：US14462064

    申请日：2014-08-18

    Applicant: SAMSUNG DISPLAY CO., LTD.

    Inventor： Yunmi Kim ,  Kihyun Pyun ,  Sung-Jun Kim ,  Kyung-Hwa Lim ,  Juhyun Kim ,  Yongjae Lee ,  Jeongdoo Lee

    IPC: G09G3/36

    CPC classification number: G09G3/3614 ,  G09G3/3696 ,  G09G2310/08 ,  G09G2320/0209

    Abstract: A display apparatus includes: a display panel which displays an image; a data driver which supplies a data voltage to the display panel in response to a polarity control signal, where the polarity control signal controls a polarity of the data voltage; a timing controller which outputs a polarity signal corresponding to a polarity of the data voltage; and a polarity converter which receives a common voltage from a common electrode of the display panel and the polarity signal from the timing controller, where the polarity converter outputs the polarity control signal to the data driver in response to a difference in voltage level between the common voltage from the common electrode and the polarity signal from the timing controller.

    Display device and method of driving the same utilizing kickback compensation values
    59.
    发明授权
    Display device and method of driving the same utilizing kickback compensation values 有权
    使用反冲补偿值的显示装置及其驱动方法

    公开(公告)号：US09251751B2

    公开(公告)日：2016-02-02

    申请号：US14182805

    申请日：2014-02-18

    Applicant: Samsung Display Co., Ltd.

    Inventor： Seung-Woon Shin ,  Kihyun Pyun ,  Jun-Ho Hwang ,  Jang-Mi Lee

    IPC: G09G3/36 ,  G09G3/00

    CPC classification number: G09G3/3648 ,  G09G3/006 ,  G09G2310/0286 ,  G09G2320/0242 ,  G09G2320/0285 ,  G09G2330/10

    Abstract: A display device includes gate lines, data lines, pixels, a gate driver, a data driver, and a timing controller. The gate lines extend in a first direction. The data lines extend in a second direction crossing the first direction. Each of the pixels is connected to a corresponding gate line of the gate lines and a corresponding data line of the data lines. The gate driver is configured to drive the gate lines. The data driver is configured to drive each data line of the data lines in response to a corresponding data signal. The timing controller is configured to, in response to an image signal and a control signal, apply the corresponding data signals to the data driver and control the gate driver. Each corresponding data signal reflects a kickback compensation value corresponding to a distance between the gate driver and the corresponding data line in the first direction.

    Abstract translation: 显示装置包括栅极线，数据线，像素，栅极驱动器，数据驱动器和定时控制器。 栅极线在第一方向上延伸。 数据线沿与第一方向交叉的第二方向延伸。 每个像素连接到栅极线的对应栅极线和数据线的相应数据线。 栅极驱动器配置为驱动栅极线。 数据驱动器被配置为响应于相应的数据信号驱动数据线的每个数据线。 定时控制器被配置为响应于图像信号和控制信号，将相应的数据信号施加到数据驱动器并控制栅极驱动器。 每个对应的数据信号反映与第一方向上的栅极驱动器和对应数据线之间的距离对应的反冲补偿值。

    Driving controller and display device including the same
    60.
    发明授权
    Driving controller and display device including the same 有权

    公开(公告)号：US12288529B2

    公开(公告)日：2025-04-29

    申请号：US18750577

    申请日：2024-06-21

    Applicant: Samsung Display Co., Ltd.

    Inventor： Kihyun Pyun ,  Seungho Park ,  Sung-Mo Yang

    IPC: G09G3/3275 ,  G09G3/32

    Abstract: A driving controller includes an overcurrent load calculator calculating a load of an input image signal, comparing the load and a reference load, and outputting a first signal corresponding to a first comparison result, an overcurrent reference controller analyzing a grayscale of the input image signal and outputting one of a first reference current signal corresponding to the grayscale and a second reference current signal, whose current level is higher than that of the first reference current signal, as a reference current signal, a current sensor receiving a feedback current signal, comparing a current level of the feedback current signal and a current level of the reference current signal, and outputting a second signal corresponding to a second comparison result, and a voltage controller outputting a voltage control signal for adjusting a voltage level of a driving voltage, based on the first signal and the second signal.

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