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    Display apparatus
    41.
    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
    42.
    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
    44.
    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。

    Current sensor and display device including the same
    45.
    发明授权
    Current sensor and display device including the same 有权

    公开(公告)号：US12293693B2

    公开(公告)日：2025-05-06

    申请号：US18079607

    申请日：2022-12-12

    Applicant: Samsung Display Co., Ltd.

    Inventor： Kihyun Pyun ,  Jang-Mi Lee

    IPC: G09G3/20 ,  G01R19/165

    Abstract: A display device may include a display panel which displays an image based on image data, a power supply which provides a driving voltage to the display panel through a power line, a current sensor which generates first current data including average, minimum, and maximum sensing currents of a first period based on sensing currents generated by sampling a current flowing through the power line at a sampling frequency, generates second current data including average, minimum, and maximum sensing currents of a second period less than the first period based on the sensing currents, and includes a first controller controlling the image data or the power supply based on the second current data, and a timing controller which communicates with the current sensor, and includes a second controller controlling the image data or the power supply based on the first and second current data.

    Display device having a driving voltage controller and method of driving the same
    46.
    发明授权
    Display device having a driving voltage controller and method of driving the same 有权

    公开(公告)号：US12223897B2

    公开(公告)日：2025-02-11

    申请号：US18124044

    申请日：2023-03-21

    Applicant: Samsung Display Co., Ltd.

    Inventor： Kihyun Pyun ,  Sung-Mo Yang

    IPC: G09G3/3233 ,  G09G3/20

    Abstract: A display device may include a display panel displaying an image and including pixels, a driving voltage controller including an overcurrent detector generating an alert signal when a driving current of the display panel is greater than a reference current, a load calculator calculating a load of input image data in response to the alert signal and generating a load escape signal when the load is greater than a reference load, a vertical blank counter generating a vertical blank count value by counting a time of a vertical blank period in response to the alert signal and the load escape signal, and generating a counter escape signal when the vertical blank count value is greater than a reference count value, and a driving voltage generator altering a driving voltage provided to the display panel in response to the alert signal and the counter escape signal.

    Display device and method of driving the same
    48.
    发明授权
    Display device and method of driving the same 有权

    公开(公告)号：US11961476B2

    公开(公告)日：2024-04-16

    申请号：US18136469

    申请日：2023-04-19

    Applicant: Samsung Display Co., LTD.

    Inventor： Kihyun Pyun ,  Seung-Woon Shin

    IPC: G09G3/3233 ,  G09G3/20

    CPC classification number: G09G3/3233 ,  G09G3/2096 ,  G09G2300/0842 ,  G09G2330/021 ,  G09G2330/028 ,  G09G2354/00

    Abstract: A display device includes a display panel which displays an image based on output image data converted from input image data, an input voltage controller which determines a maximum scale factor and a minimum scale factor based on a power control mode set by a user, calculates a maximum driving voltage based on the maximum scale factor and the minimum scale factor, and calculates an optimal voltage based on the maximum driving voltage, a power supply which generates an input voltage based on the optimal voltage, and a driving voltage generator which generates a driving voltage provided to the display panel using the input voltage.

    Method of driving display panel and display apparatus for performing the same
    49.
    发明授权
    Method of driving display panel and display apparatus for performing the same 有权

    公开(公告)号：US11908370B2

    公开(公告)日：2024-02-20

    申请号：US18109106

    申请日：2023-02-13

    Applicant: Samsung Display Co., Ltd.

    Inventor： Geonhwi Park ,  Hyunjoo Seo ,  Kihyun Pyun

    IPC: G09G3/20

    CPC classification number: G09G3/2007 ,  G09G3/2096 ,  G09G2320/0233 ,  G09G2320/0276 ,  G09G2320/0626 ,  G09G2320/0666 ,  G09G2360/16

    Abstract: A method of operating a display apparatus includes the following steps: calculating a first color reference luminance ratio, a second color reference luminance ratio, and a third color reference luminance ratio for a reference grayscale value; calculating first color target luminance ratios, second color target luminance ratios, and third color target luminance ratios for adjustment target grayscale values; generating first adjustment values, second adjustment values, and third adjustment values based on the first, second, and third color reference luminance ratios and the first, second, and third color target luminance ratios; performing gamma conversions of first, second and third colors using the first, second, and third adjustment values for the adjustment target grayscale values; using results of the gamma conversions to generate data voltages; and using the data voltage and a display panel of the display apparatus to emit or transmit light for displaying an image.

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