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    DISPLAY DEVICE
    1.
    发明申请
    DISPLAY DEVICE 有权

    公开(公告)号：US20230138436A1

    公开(公告)日：2023-05-04

    申请号：US17948787

    申请日：2022-09-20

    Applicant: Samsung Display Co., Ltd.

    Inventor： Jae Hoon LEE ,  Kyoung Ho LIM ,  Seung Ho PARK ,  Hee Sook PARK ,  Sang Myeon HAN

    IPC: G09G3/32

    Abstract: A display device is disclosed that includes pixels, a memory, and a degradation compensator. The pixels include light emitting elements. The memory is operable to store degradation information including degradation degrees of the light emitting elements. The degradation compensator is operable to receive the degradation information and generate output grayscales by changing each of input grayscales of the pixels in proportion to each of the degradation degrees. The degradation compensator includes a degradation information changer for changing the degradation information by decreasing a degradation degree having a variation greater than a threshold value among variations of the degradation degrees.

    IMAGE STICKING COMPENSATION DEVICE AND DISPLAY DEVICE HAVING THE SAME
    2.
    发明申请
    IMAGE STICKING COMPENSATION DEVICE AND DISPLAY DEVICE HAVING THE SAME 有权

    公开(公告)号：US20220223092A1

    公开(公告)日：2022-07-14

    申请号：US17523218

    申请日：2021-11-10

    Applicant: SAMSUNG DISPLAY CO., LTD.

    Inventor： JAE HOON LEE ,  Seung Ho PARK ,  Jin Ho LEE ,  Sang Myeon HAN

    IPC: G09G3/20

    Abstract: An image sticking compensation device includes: a deterioration calculator which calculates deterioration data of a current frame based on input image data and sensing frequency information which are received from a timing controller; an accumulator which accumulates the deterioration data and generates age data in which the deterioration data is accumulated; and a compensator which determines a grayscale compensation value corresponding to the age data and an input grayscale value of the input image data, and outputs age compensation data by applying the grayscale compensation value to the input image data. The sensing frequency information includes a frequency of the current frame, and the deterioration data varies in accordance with the frequency of the current frame.

    DISPLAY DEVICE
    3.
    发明申请
    DISPLAY DEVICE 审中-公开

    公开(公告)号：US20190325849A1

    公开(公告)日：2019-10-24

    申请号：US16458941

    申请日：2019-07-01

    Applicant: Samsung Display Co., Ltd.

    Inventor： Kang Hee LEE ,  Seung Ho PARK ,  Mi Young JOO

    IPC: G09G5/393 ,  G09G3/00

    Abstract: A display device includes a controller and a display panel. The controller receives original image data and output a display image signal. The display panel receives the display image signal and displays a display image corresponding to the display image signal. The controller includes an image shift controller and a memory. The image shift controller generates shifted image data by modulating the original image data to shift the display image sequentially along a preset shift path on the display panel. The memory stores a shift path value indicating a distance by which the display image has been shifted on the preset shift path. The image shift controller generates the display image signal by processing the shifted image data. When the display device is powered on, the image shift controller generates shifted image data corresponding to a shift path value stored in the memory.

    DISPLAY DEVICE AND METHOD OF DISPLAYING IMAGE BY USING DISPLAY DEVICE
    4.
    发明申请
    DISPLAY DEVICE AND METHOD OF DISPLAYING IMAGE BY USING DISPLAY DEVICE 审中-公开

    公开(公告)号：US20180012563A1

    公开(公告)日：2018-01-11

    申请号：US15618860

    申请日：2017-06-09

    Applicant: SAMSUNG DISPLAY CO., LTD.

    Inventor： Kang Hee LEE ,  Seung Ho PARK

    IPC: G09G5/10

    Abstract: A method of displaying an image by using a display device. The method includes: grouping pixels included in a display unit into pixel blocks, generating a first accumulated stress map representing a degree of a deteriorated performance of the pixels included in the pixel blocks based on first image data of a current frame image, and determining a shiftable range of the current frame image by analyzing the first accumulated stress map. The first image data is corrected to second image data in which the current frame image is shifted within the shiftable range.

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

    公开(公告)号：US20250006138A1

    公开(公告)日：2025-01-02

    申请号：US18589875

    申请日：2024-02-28

    Applicant: Samsung Display Co., LTD.

    Inventor： Jung Taek KIM ,  Yoon Sup KIM ,  Seung Ho PARK ,  Joon Suk BAIK

    IPC: G09G3/3291 ,  G09G3/32

    Abstract: A display device includes a pixel that has a first transistor having a drain electrode that is connected to a first power voltage node and a source electrode that is connected to a second power voltage node, a second transistor connected between a data line and a gate electrode of the first transistor, and a third transistor connected between a sensing line and the source electrode of the first transistor, a data driver applying a bias voltage to the data line during a sensing period, a sensing driver sensing an electrical characteristic of the pixel through the sensing line during the sensing period, and a controller for adjusting the bias voltage according to the first power voltage according to input image data.

    DISPLAY DEVICE AND METHOD OF DRIVING THE SAME
    7.
    发明申请
    DISPLAY DEVICE AND METHOD OF DRIVING THE SAME 有权

    公开(公告)号：US20240412681A1

    公开(公告)日：2024-12-12

    申请号：US18811239

    申请日：2024-08-21

    Applicant: SAMSUNG DISPLAY CO., LTD.

    Inventor： Joon Hyeok JEON ,  Byoung Kwan AN ,  Sang Myeon HAN ,  Chang Hun KIM ,  Seung Ho PARK ,  Seok Gyu BAN ,  Nam Jae LIM

    IPC: G09G3/20 ,  G09G3/3233

    Abstract: A display device includes pixels connected to scan lines and data lines, each pixel including a driving transistor and at least one light emitting element, and a timing controller configured to generate output data using external input data. The timing controller includes a first compensator configured generate first data by correcting the external input data using at least one of optical measurement information, a threshold voltage of each of the driving transistors, mobility information, dimming information, and temperature information, and an afterimage compensator configured to generate second data based on age information of each light emitting element and the first data, generate third data based on a current amount corresponding to the first data and a current amount corresponding to the second data, and generate the age information by accumulating the third data.

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