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    Display device and a method of driving the same
    1.
    发明授权
    Display device and a method of driving the same 有权

    公开(公告)号：US12148396B2

    公开(公告)日：2024-11-19

    申请号：US18219876

    申请日：2023-07-10

    Applicant: Samsung Display Co., Ltd.

    Inventor： So Young Park ,  Hyo Jin Lee ,  Hwal Choi

    IPC: G09G3/3291 ,  G06F3/041 ,  G06F3/044 ,  G06F3/0488

    Abstract: A display device including: a display panel configured to display an image; a sensor overlapping the display panel; and a processor connected to the sensor, and configured to sense input from an object, in response to a sensing signal provided from the sensor, wherein the processor obtains, in response to the sensing signal, offset data that corresponds to a case where there is no input, and senses the input by reflecting the offset data to the sensing signal, wherein the processor senses touch input from the object in a first mode, and senses proximity of the object in a second mode, and wherein the processor changes a rule related to obtaining the offset data in response to an event occurring in the second mode.

    Display device
    4.
    发明授权
    Display device 有权

    公开(公告)号：US11610537B2

    公开(公告)日：2023-03-21

    申请号：US17535340

    申请日：2021-11-24

    Applicant: Samsung Display Co., Ltd.

    Inventor： Jae Keun Lim ,  Hong Soo Kim ,  Jin Young Roh ,  Se Hyuk Park ,  Woo Mi Bae ,  Hyo Jin Lee

    IPC: G09G3/32

    Abstract: Provided is a display device comprising a pixel unit including first pixel rows connected to first scan lines and second pixel rows alternating with the first pixel rows and connected to second scan lines, a scan driver including first scan stages connected to the first scan lines and second scan stages connected to the second scan lines, and an emission driver including emission stages in which each of emission lines is connected to two or more pixel rows. Accordingly, the display device is capable of changing a display frequency and maintaining the same cycle in which luminance decreases when the display frequency is changed.

    Display device and driving method thereof
    5.
    发明授权
    Display device and driving method thereof 有权

    公开(公告)号：US11587514B2

    公开(公告)日：2023-02-21

    申请号：US17583938

    申请日：2022-01-25

    Applicant: Samsung Display Co., Ltd.

    Inventor： Jin Young Roh ,  Hong Soo Kim ,  Se Hyuk Park ,  Hyo Jin Lee ,  Jae Keun Lim

    IPC: G09G3/3291 ,  G09G3/3266

    Abstract: Embodiments of the present disclosure relate to a display device and a driving method thereof, and the display device includes a demultiplexer connected to a first data line and transferring a data signal from the first data line to a plurality of second data lines during a data writing period of one frame, a compensator calculating an on-pixel ratio (OPR) using input data in the one frame and generating compensation data corresponding to a calculated OPR, and a data driver supplying the data signal to the first data line using the input data during the data writing period, and supplying a compensation data signal to the first data line using the compensation data in a blank period of the one frame, and the demultiplexer supplies the compensation data signal from the first data line to a second data line during the blank period.

    Display device and driving method thereof
    6.
    发明授权
    Display device and driving method thereof 有权

    公开(公告)号：US11482157B2

    公开(公告)日：2022-10-25

    申请号：US17535331

    申请日：2021-11-24

    Applicant: Samsung Display Co., Ltd.

    Inventor： Jae Keun Lim ,  Hong Soo Kim ,  Jin Young Roh ,  Se Hyuk Park ,  Hyo Jin Lee

    IPC: G09G3/20

    Abstract: Provided is a display device including a pixel unit in which each of pixel rows extends in a first direction, odd numbered pixel rows and even numbered pixel rows are alternately disposed in a second direction, and pixels included in the pixel rows are designated as dots having two or more units, a gray difference calculator that calculates difference between representative grays of dots adjacent in the second direction among dots of a p-th pair of the pixel rows, an edge detector that increases an edge dot number when a first condition in which the difference between the representative grays is larger than a first threshold value is satisfied, and a first pattern detector that increases an edge number when the edge dot number is larger than a second threshold value, and that generates a first pattern detection signal when the edge number is larger than a third threshold value.

    Display apparatus and method of driving the same
    7.
    发明授权
    Display apparatus and method of driving the same 有权

    公开(公告)号：US11264446B2

    公开(公告)日：2022-03-01

    申请号：US16843637

    申请日：2020-04-08

    Applicant: Samsung Display Co., Ltd.

    Inventor： Hyo Jin Lee ,  Jinyoung Roh ,  Sehyuk Park ,  Sangan Kwon ,  Hui Nam

    IPC: G09G3/3291 ,  G09G5/18 ,  G06F3/041 ,  G06F1/3234 ,  G09G3/36 ,  H01L27/32 ,  G09G3/20

    Abstract: A display apparatus includes: a display panel configured to display an image based on input image data; a gate driver configured to output a gate signal to the display panel; a data driver configured to output a data voltage to the display panel; a driving controller configured to control an operation of the gate driver and an operation of the data driver, to determine a normal driving mode and a low frequency driving mode based on the input image data, and to determine a driving frequency of the display panel based on the input image data; and a touch driver configured to detect a touch event occurring on the display panel, and to output a touch interrupt signal representing the touch event to the driving controller.

    Display apparatus and method of driving display panel using the same
    8.
    发明授权
    Display apparatus and method of driving display panel using the same 有权

    公开(公告)号：US11195468B2

    公开(公告)日：2021-12-07

    申请号：US17014969

    申请日：2020-09-08

    Applicant: Samsung Display Co., Ltd.

    Inventor： Se Hyuk Park ,  Hong Soo Kim ,  Jin Young Roh ,  Hyo Jin Lee ,  Jae Keun Lim

    IPC: G09G3/36 ,  G09G3/3258 ,  G09G3/3291 ,  H01L27/32 ,  H01L29/786 ,  H01L27/12

    Abstract: A display apparatus includes a display panel, a first gate driver, a second gate driver, a third gate driver, and a data driver. The display apparatus is operable in a low frequency driving mode, and the low frequency driving mode includes a writing frame and a holding frame. At least one of gate power voltages used to generate a first gate signal, a second gate signal, and an emission signal has a first voltage level in the writing frame of the low frequency driving mode and a second voltage level in the holding frame of the low frequency driving mode. The data voltage is applied to the pixel in the writing frame of the low frequency driving mode. The data voltage applied to the pixel in the writing frame of the low frequency driving mode is maintained in the holding frame of the low frequency driving mode.

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