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    DISPLAY APPARATUS AND METHOD OF DRIVING DISPLAY PANEL USING THE SAME
    1.
    发明申请
    DISPLAY APPARATUS AND METHOD OF DRIVING DISPLAY PANEL USING THE SAME 有权

    公开(公告)号：US20220238074A1

    公开(公告)日：2022-07-28

    申请号：US17717997

    申请日：2022-04-11

    Applicant: Samsung Display Co., Ltd.

    Inventor： SEHYUK PARK ,  HONGSOO KIM ,  JINYOUNG ROH ,  BONGHYUN YOU ,  HYOJIN LEE ,  JAEKEUN LIM

    IPC: G09G3/3266 ,  G09G3/3275

    Abstract: A display apparatus includes a display panel, a gate driver, a data driver, a driving controller and a power voltage generator. The display panel displays an image based on input image data. The gate driver outputs a gate signal to a gate line. The data driver outputs a data voltage to a data line. The driving controller drives display areas of the display panel in different driving frequencies. The power voltage generator outputs a data power voltage to the data driver. The driving controller outputs an output data enable signal including a writing period having an active signal and a holding period having an inactive signal for the respective display areas. The power voltage generator generates the data power voltage having a high power voltage level during the writing period and a low power voltage level in at least a portion of the holding period.

    DISPLAY DEVICE
    4.
    发明公开
    DISPLAY DEVICE 审中-公开

    公开(公告)号：US20240143113A1

    公开(公告)日：2024-05-02

    申请号：US18451417

    申请日：2023-08-17

    Applicant: SAMSUNG DISPLAY CO., LTD.

    Inventor： HYOJIN LEE ,  SOONGYU LEE ,  JINWOO KIM ,  WOOMI BAE

    IPC: G06F3/041 ,  G06F3/044

    CPC classification number: G06F3/04182 ,  G06F3/0446 ,  G06F2203/04108

    Abstract: A display device includes a display panel, an input sensor operating in an input sensing mode or a proximity sensing mode, a sensor controller driving the input sensor in the input sensing mode or the proximity sensing mode, and a main controller controlling driving of the sensor controller. The input sensor includes a sensing area and a non-sensing area. The sensing area is divided into a proximity sensing area and a plurality of reference areas in the proximity sensing mode. The main controller generates a noise control signal based on a plurality of reference sensing signals sensed in the reference areas, and determines whether an object is in proximity based on the noise control signal and a proximity sensing signal sensed in the proximity sensing area.

    INPUT SENSING PART AND DRIVING METHOD THEREOF
    5.
    发明公开
    INPUT SENSING PART AND DRIVING METHOD THEREOF 审中-公开

    公开(公告)号：US20240069672A1

    公开(公告)日：2024-02-29

    申请号：US18328285

    申请日：2023-06-02

    Applicant: SAMSUNG DISPLAY CO., LTD.

    Inventor： HYOJIN LEE ,  SOONGYU LEE ,  JINWOO KIM ,  WOOMI BAE

    IPC: G06F3/041 ,  G06F3/044

    CPC classification number: G06F3/041662 ,  G06F3/0446

    Abstract: A method of driving an input sensor to detect a proximity of a user includes driving the input sensor in a direct sensing mode, the input sensor including first sensing electrodes and second sensing electrodes insulated from the first sensing electrodes, and upon determining the user is engaged in a call, driving the input sensor in in a first proximity sensing mode by applying a driving signal to each of the first sensing electrodes. when the user has not performed the direct touch, and driving the input sensor in a second proximity sensing mode by applying no driving signal to a first subset of the first sensing electrodes and applying the driving signal to a second other subset of the first sensing electrodes, when the user has performed the direct touch.

    DISPLAY DEVICE AND METHOD OF OPERATING THE DISPLAY DEVICE
    6.
    发明申请
    DISPLAY DEVICE AND METHOD OF OPERATING THE DISPLAY DEVICE 有权

    公开(公告)号：US20230065185A1

    公开(公告)日：2023-03-02

    申请号：US17863519

    申请日：2022-07-13

    Applicant: SAMSUNG DISPLAY CO., LTD.

    Inventor： HYOJIN LEE ,  WOOMI BAE ,  HUI NAM ,  JINYOUNG ROH ,  SEHYUK PARK ,  JAEKEUN LIM

    IPC: G09G3/3266

    Abstract: A display device includes a display panel including a plurality of pixel rows, and a panel driver which drives the display panel. The panel driver determines whether input image data represents a still image. When the input image data represents the still image, the panel driver determines a flicker value of the still image, applies a compensation value corresponding to a carry shift interval to the flicker value, determines a driving frequency for the display panel based on the flicker value to which the compensation value is applied, and performs an alternate driving operation for the display panel at the driving frequency.

    GATE DRIVER AND DISPLAY APPARATUS INCLUDING THE SAME
    7.
    发明申请
    GATE DRIVER AND DISPLAY APPARATUS INCLUDING THE SAME 有权

    公开(公告)号：US20220059039A1

    公开(公告)日：2022-02-24

    申请号：US17389466

    申请日：2021-07-30

    Applicant: Samsung Display Co., Ltd.

    Inventor： JINYOUNG ROH ,  HONGSOO KIM ,  SEHYUK PARK ,  HYOJIN LEE ,  JAEKEUN LIM

    IPC: G09G3/3291 ,  G09G3/3266

    Abstract: A gate driver includes a first stage, a second stage, a third stage and a fourth stage. The first stage includes a first clock terminal receiving a first clock signal, a second clock terminal receiving a second clock signal, a carry terminal receiving a vertical start signal and an output terminal outputting a first gate output signal. The second stage includes a first clock terminal receiving the second clock signal, a second clock terminal receiving the first clock signal, a carry terminal receiving the vertical start signal and an output terminal outputting a second gate output signal. The third stage includes a first clock terminal receiving the second clock signal, a second clock terminal receiving the first clock signal, a carry terminal receiving the first gate output signal and an output terminal outputting a third gate output signal.

    DISPLAY DEVICE AND METHOD FOR DRIVING THE SAME
    9.
    发明申请
    DISPLAY DEVICE AND METHOD FOR DRIVING THE SAME 有权

    公开(公告)号：US20220238076A1

    公开(公告)日：2022-07-28

    申请号：US17539555

    申请日：2021-12-01

    Applicant: Samsung Display Co., Ltd.

    Inventor： WOOMI BAE ,  HAE-KWAN SEO ,  YOUNGHA SOHN ,  HYOJIN LEE ,  JAEKEUN LIM

    IPC: G09G3/3291 ,  G09G3/3233 ,  G09G3/3266

    Abstract: A display device includes a display panel that includes a first display area and a second display area, a data driving circuit which drives a plurality of data lines, a scan driving circuit which drives a plurality of scan lines, and a driving controller which controls the data driving circuit and the scan driving circuit such that the first display area is driven at a first driving frequency, and the second display area is driven at a second driving frequency lower than the first driving frequency during a multi-frequency mode, where the driving controller receives an image signal and provides to the data driving circuit an image data signal obtained by compensating for a gamma level of the image signal corresponding to the second display area during the multi-frequency mode.

    DISPLAY APPARATUS AND METHOD OF DRIVING THE SAME
    10.
    发明申请
    DISPLAY APPARATUS AND METHOD OF DRIVING THE SAME 有权

    公开(公告)号：US20220036833A1

    公开(公告)日：2022-02-03

    申请号：US17315449

    申请日：2021-05-10

    Applicant: Samsung Display Co., Ltd.

    Inventor： SEHYUK PARK ,  HONGSOO KIM ,  JINYOUNG ROH ,  HYOJIN LEE ,  JAEKEUN LIM ,  JUNHEYUNG JUNG

    IPC: G09G3/3291 ,  G09G3/20

    Abstract: A display apparatus includes a display panel including pixels, a gate driver applying a gate signal to a gate line, a data driver applying a data voltage to a data line and a driving controller determining a mode of an input image data to a moving image mode or a static image mode according to whether the input image data is a moving image or a static image, driving the display panel in a moving image driving frequency in the moving image mode and in a static image driving frequency in the static image mode, operating the gate driver in an alternate driving mode such that the gate driver scans a first group of the gate lines in a first duration and a second group of the gate lines in a second duration and inserting a compensation frame to scan all of the gate lines when an image transition is occurred in the static image mode.

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