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    Display device performing clock modulation and method of operating the display device
    1.
    发明授权
    Display device performing clock modulation and method of operating the display device 有权

    公开(公告)号：US11151919B2

    公开(公告)日：2021-10-19

    申请号：US16268066

    申请日：2019-02-05

    Applicant: Samsung Display Co., Ltd.

    Inventor： Hyun-Sik Yoon ,  Daeho Hwang ,  Jeong-Hyun Kim ,  Junpyo Lee ,  Sungsoo Choi

    IPC: G09G3/20

    Abstract: A method of operating a display device includes: receiving image data at an input frame frequency; generating a modulated clock signal by modulating an input clock signal according to a modulation frequency; randomly selecting an output frame frequency within a data frequency selection range, the input frame frequency being within the data frequency selection range; determining an output start timing of the image data based on the output frame frequency; initiating, at the output start timing, output of the image data in synchronization with the modulated clock signal; and displaying an image based on the outputted image data.

    Display apparatus and method of operating the same based on N gate clock control signals
    3.
    发明授权
    Display apparatus and method of operating the same based on N gate clock control signals 审中-公开

    公开(公告)号：US10672321B2

    公开(公告)日：2020-06-02

    申请号：US15806555

    申请日：2017-11-08

    Applicant: Samsung Display Co., Ltd.

    Inventor： Min-Soo Choi ,  Junpyo Lee ,  Yu-Chol Kim ,  Jeong-Hyun Kim

    IPC: G09G5/10 ,  G09G3/20 ,  G09G3/36

    Abstract: A display apparatus includes a gate driving control circuit, a gate driver and a display panel. The gate driving control circuit generates N gate clock signals and N inversion gate clock signals based on N gate clock control signals, phases of which partially overlap with each other. Each inversion gate clock signals has an opposite phase to a respective gate clock signal. The gate driver generates gate signals based on the N gate clock signals or the N inversion gate clock signals and applies the gate signals to gate lines. The display panel includes pixels, each connected to a respective gate line and a respective data line. Each of the pixels has a longer side in parallel with gate lines and a shorter side in parallel with the data lines. A number of the gate clock control signals is an integer multiple of a number of colors of the pixels.

    Display device with connection board and method of testing pad contact state thereof
    4.
    发明授权
    Display device with connection board and method of testing pad contact state thereof 有权

    公开(公告)号：US11094237B2

    公开(公告)日：2021-08-17

    申请号：US16847663

    申请日：2020-04-14

    Applicant: Samsung Display Co., LTD.

    Inventor： Sung-Jun Kim ,  Myung-Seok Kwon ,  Deok-Hwan Kim ,  Yun-Tae Kim ,  Jeong-Hyun Kim ,  Hasook Kim ,  Bongchun Park

    IPC: G09G3/00 ,  G01R31/28

    Abstract: A display device includes a display panel including first to fourth panel pads and a connection board including first to fourth connection board pads coupled to the first to fourth pads, respectively. The first and second panel pads are electrically connected to each other, and the third and fourth panel pads are electrically connected to each other. The connection board includes a driving circuit which generates a first test result signal based on a first panel test signal transmitted to the first connection board pad and a first panel feedback signal received from the second connection board pad, generates a second test result signal based on a second panel test signal transmitted to the third connection board pad and a second panel feedback signal received from the fourth connection board pad, and sequentially outputs the first and second test result signals as a test result signal.

    Display apparatus
    6.
    发明授权
    Display apparatus 有权
    显示装置

    公开(公告)号：US09373296B2

    公开(公告)日：2016-06-21

    申请号：US14294924

    申请日：2014-06-03

    Applicant: Samsung Display Co., Ltd.

    Inventor： Neung-Beom Lee ,  Jeong-Hyun Kim ,  Jinseuk Kim ,  Jong Hyun Sim ,  Junpyo Lee

    IPC: G09G1/00 ,  G09G3/36

    CPC classification number: G09G3/3659 ,  G09G3/3607 ,  G09G2300/0426 ,  G09G2300/0447 ,  G09G2300/0478 ,  G09G2310/0251 ,  G09G2310/0286 ,  G09G2320/028

    Abstract: A display apparatus includes pixels each including first and second sub-pixels having different transmittances from each other under a same gray scale, gate lines commonly connected to the first and second sub-pixels to apply a gate signal to the first and second sub-pixels, a first data line applying a first data signal to one of the first and second sub-pixels, and a second data line applying a second data signal to the other one of the first and second sub-pixels. The first sub-pixel has the transmittance lower than the transmittance of the second sub-pixel, and the second sub-pixel connected to an i-th gate line of the gate lines is disposed between the first sub-pixel connected to the i-th gate line and the first sub-pixel connected to an (i+1)th gate line of the gate lines.

    Abstract translation: 显示装置包括像素，其各自包括在相同灰度处彼此具有不同透射率的第一和第二子像素，公共连接到第一和第二子像素的栅极线，以向第一和第二子像素施加栅极信号 将第一数据信号施加到第一和第二子像素之一的第一数据线以及将第二数据信号施加到第一和第二子像素中的另一个的第二数据线。 第一子像素的透射率低于第二子像素的透射率，连接到栅极线的第i栅极线的第二子像素设置在与第i子像素连接的第一子像素之间， 栅极线和连接到栅极线的第（i + 1）栅极线的第一子像素。

    Gate driver, a display apparatus having the gate driver and a method of driving the display apparatus
    7.
    发明授权
    Gate driver, a display apparatus having the gate driver and a method of driving the display apparatus 有权

    公开(公告)号：US10186220B2

    公开(公告)日：2019-01-22

    申请号：US15054580

    申请日：2016-02-26

    Applicant: SAMSUNG DISPLAY CO., LTD.

    Inventor： Young-Soo Sohn ,  Neung-Beom Lee ,  Jeong-Hyun Kim ,  Jin-Seuk Kim ,  Won-Hee Lee

    IPC: G09G3/36 ,  G09G3/20

    Abstract: A gate driver includes a first shift-register including a plurality of odd-numbered stages which outputs a plurality of odd-numbered original gate signals having a pre-charge pulse and a main-charge pulse in synchronization with a first gate clock signal, a second shift-register comprising a plurality of even-numbered stages which outputs a plurality of even-numbered original gate signals having a pre-charge pulse and a main-charge pulse in synchronization with a second gate clock signal, a first inverter configured to output a first inversion pre-charge control signal having a phase opposite to a phase of a first pre-charge control signal, and a second inverter configured to output a second inversion pre-charge control signal having a phase opposite to a phase of a second pre-charge control signal.

    Display device using plural gamma curves and driving method thereof
    8.
    发明授权
    Display device using plural gamma curves and driving method thereof 有权
    使用多个伽马曲线的显示装置及其驱动方法

    公开(公告)号：US09230469B2

    公开(公告)日：2016-01-05

    申请号：US13678009

    申请日：2012-11-15

    Applicant: Samsung Display Co., Ltd.

    Inventor： Neung-Beom Lee ,  Jeong-Hyun Kim ,  Won Hee Lee ,  Woo Jung Jung

    IPC: G09G3/36 ,  G09G3/20

    CPC classification number: G09G3/20 ,  G09G3/3614 ,  G09G3/3648 ,  G09G3/3655 ,  G09G2300/0443 ,  G09G2310/0205 ,  G09G2310/0218 ,  G09G2310/0251 ,  G09G2320/0204 ,  G09G2320/0257 ,  G09G2320/0673

    Abstract: A display device and a driving method is disclosed. The driving method includes receiving an image signal for one frame for one pixel, converting the image signal into at least two data voltages according to at least two gamma curves, applying a first gate signal and a second gate signal to a plurality of gate lines respectively connected to a plurality of subpixels included in one pixel during the frame. The method further includes applying the at least two data voltages to the plurality of subpixels during the frame. A gamma curve for the data voltage applied to one subpixel among the plurality of subpixels includes the at least two different gamma curves and is changed with a period of a first time.

    Abstract translation: 公开了一种显示装置和驱动方法。 该驱动方法包括：接收一个像素的一帧的图像信号，根据至少两个伽马曲线将图像信号转换为至少两个数据电压，分别向多个栅极线施加第一栅极信号和第二栅极信号 连接到帧期间包括在一个像素中的多个子像素。 该方法还包括在帧期间将多个子像素应用至少两个数据电压。 施加到多个子像素中的一个子像素的数据电压的伽马曲线包括至少两个不同的伽马曲线，并且以第一次的周期改变。

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