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    DISPLAY DEVICE, AND METHOD OF SENSING A DRIVING CHARACTERISTIC
    1.
    发明申请
    DISPLAY DEVICE, AND METHOD OF SENSING A DRIVING CHARACTERISTIC 有权

    公开(公告)号：US20220013072A1

    公开(公告)日：2022-01-13

    申请号：US17346655

    申请日：2021-06-14

    Applicant: Samsung Display Co., Ltd. ,  SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION

    Inventor： JEONKYOO KIM ,  SOO YEON LEE ,  MANSEUNG CHO ,  KYEONG SOO KANG ,  JUNHEE MOON ,  BONGHYUN YOU ,  JIN KYU LEE

    IPC: G09G3/3291 ,  G09G3/3266

    Abstract: A display device includes a sensing circuit and a controller which selects a pixel row in a frame period. A vertical blank period of the frame period includes a sensing time in which the sensing circuit performs a sensing operation for the selected pixel row. The sensing circuit measures a first source voltage of a driving transistor of a pixel in the selected pixel row at a first time point of the sensing time, and measures a second source voltage of the driving transistor at a second time point of the sensing time. The controller calculates a threshold voltage parameter and a mobility parameter based on the first and second source voltages, predicts a saturated source voltage of the driving transistor based on the threshold voltage parameter and the mobility parameter, and calculates a threshold voltage of the driving transistor based on the saturated source voltage.

    DISPLAY DEVICE, AND METHOD OF SENSING A DRIVING CHARACTERISTIC
    2.
    发明申请
    DISPLAY DEVICE, AND METHOD OF SENSING A DRIVING CHARACTERISTIC 有权

    公开(公告)号：US20220375416A1

    公开(公告)日：2022-11-24

    申请号：US17874680

    申请日：2022-07-27

    Applicant: Samsung Display Co., Ltd. ,  SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION

    Inventor： JEONKYOO KIM ,  SOO YEON LEE ,  MANSEUNG CHO ,  KYEONG SOO KANG ,  JUNHEE MOON ,  BONGHYUN YOU ,  JIN KYU LEE

    IPC: G09G3/3291 ,  G09G3/3266

    Abstract: A display device includes a sensing circuit and a controller which selects a pixel row in a frame period. A vertical blank period of the frame period includes a sensing time in which the sensing circuit performs a sensing operation for the selected pixel row. The sensing circuit measures a first source voltage of a driving transistor of a pixel in the selected pixel row at a first time point of the sensing time, and measures a second source voltage of the driving transistor at a second time point of the sensing time. The controller calculates a threshold voltage parameter and a mobility parameter based on the first and second source voltages, predicts a saturated source voltage of the driving transistor based on the threshold voltage parameter and the mobility parameter, and calculates a threshold voltage of the driving transistor based on the saturated source voltage.

    DISPLAY APPARATUS AND METHOD OF DRIVING THE SAME
    4.
    发明申请
    DISPLAY APPARATUS AND METHOD OF DRIVING THE SAME 有权

    公开(公告)号：US20220139292A1

    公开(公告)日：2022-05-05

    申请号：US17381529

    申请日：2021-07-21

    Applicant: Samsung Display Co., Ltd.

    Inventor： YUNKI BAEK ,  MANSEUNG CHO

    IPC: G09G3/20

    Abstract: A display apparatus includes a plurality of display panels, a power voltage generator and a driving controller. The power voltage generator generates power voltages of the plurality of display panels. The driving controller receives the power voltages from feedback points of the plurality of display panels and generates a control signal and controls levels of the power voltages based on fed-back power voltages from the feedback points of the plurality of display panels. The power voltage generator adjusts the levels of the power voltages and generates compensation power voltages based on the control signal.

    DATA DRIVER AND DISPLAY DEVICE INCLUDING THE DATA DRIVER
    6.
    发明申请
    DATA DRIVER AND DISPLAY DEVICE INCLUDING THE DATA DRIVER 有权

    公开(公告)号：US20220293033A1

    公开(公告)日：2022-09-15

    申请号：US17518617

    申请日：2021-11-04

    Applicant: Samsung Display Co., Ltd.

    Inventor： JIYOUN KIM ,  HONGSOO KIM ,  SEHYUK PARK ,  JUNHEYUNG JUNG ,  MANSEUNG CHO

    IPC: G09G3/20

    Abstract: A data driver for providing data voltages to a display panel includes a digital-to-analog converting block, an option storing block, a data swap block and an output buffer block. The digital-to-analog converting block converts line data into the data voltages. The option storing block stores a pixel arrangement option representing a pixel arrangement structure of the display panel. The data swap block is connected to the digital-to-analog converting block and the option storing block, and selectively performs a data swap operation that swaps the data voltages based on the pixel arrangement option and whether the line data are odd line data or even line data. The output buffer block is connected to the data swap block and outputs the data voltages on which the data swap operation is selectively performed to data lines.

    DISPLAY APPARATUS AND METHOD OF COMPENSATING GAMMA VALUE OF THE SAME
    9.
    发明申请
    DISPLAY APPARATUS AND METHOD OF COMPENSATING GAMMA VALUE OF THE SAME 有权

    公开(公告)号：US20210343258A1

    公开(公告)日：2021-11-04

    申请号：US17195696

    申请日：2021-03-09

    Applicant: Samsung Display Co., Ltd.

    Inventor： JEONKYOO KIM ,  CHAEHEE PARK ,  DEOKHWA WOO ,  MYUNGWOO LEE ,  MANSEUNG CHO

    IPC: G09G5/10 ,  G09G3/20 ,  G06K9/00 ,  H04N5/225

    Abstract: A display apparatus includes a display panel, a first coordinate calculator, a second coordinate calculator and a gamma setter. The display panel includes a first display area and a second display area. The first coordinate calculator is configured to calculate color coordinates of first image data of the first display area. The second coordinate calculator is configured to calculate color coordinates of second image data of the second display area. The gamma setter is configured to adjust luminance of the first image data, the color coordinates of the first image data, luminance of the second image data and the color coordinates of the second image data.

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