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    Display device
    1.
    发明授权
    Display device 有权

    公开(公告)号：US12067918B2

    公开(公告)日：2024-08-20

    申请号：US18205913

    申请日：2023-06-05

    Applicant: Samsung Display Co., Ltd.

    Inventor： Seok Gyu Ban ,  Kyung Man Kim ,  Sang Jae Yeo

    IPC: G09G3/20

    CPC classification number: G09G3/20 ,  G09G2310/06 ,  G09G2320/029 ,  G09G2320/043

    Abstract: A display device includes a data line, a pixel electrically connected to the data line, a data driver for outputting a data voltage, and a transmitter electrically connected between an output terminal of the data driver and the data line. The transmitter may transmit an instance of the data voltage to the data line in a first period. The transmitter may amplify a second instance of the data voltage to generate a reference voltage and then transmit the reference voltage to the data line in a second period different from the first period. The pixel includes a light emitting element for emitting light in response to the first instance of the data voltage. A voltage level of the reference voltage may be higher than a voltage level of the data voltage.

    Method of compensating for degradation of display device
    2.
    发明授权
    Method of compensating for degradation of display device 有权

    公开(公告)号：US11264445B2

    公开(公告)日：2022-03-01

    申请号：US16820867

    申请日：2020-03-17

    Applicant: SAMSUNG DISPLAY CO., LTD.

    Inventor： Kyung Man Kim ,  Seok Gyu Ban ,  Sang Jae Yeo

    IPC: G09G3/3291 ,  G09G3/3266 ,  H01L27/32 ,  G09G3/3233 ,  G09G3/3208 ,  G09G3/3283 ,  G09G3/3258

    Abstract: A method of compensating for degradation of a display device includes sensing a first sensing current flowing through a sensing line connected to a pixel, which includes a programming period for writing a data voltage of a predetermined color to a storage capacitor of the pixel, sensing a sensing voltage of the sensing line, which includes a period for charging a line capacitor connected to the sensing line, estimating a voltage of an anode electrode of an organic light emitting diode using a second sensing current estimated from the first sensing current and the sensing voltage, and determining a degradation compensation value using the voltage of the anode electrode.

    Display device having data driver with reduced signal noise
    3.
    发明授权
    Display device having data driver with reduced signal noise 有权

    公开(公告)号：US11670237B2

    公开(公告)日：2023-06-06

    申请号：US17092966

    申请日：2020-11-09

    Applicant: SAMSUNG DISPLAY CO., LTD.

    Inventor： Jung Ki Min ,  Wook Lee ,  Sang Jae Yeo

    IPC: G09G3/3266 ,  G09G3/3291

    CPC classification number: G09G3/3266 ,  G09G3/3291 ,  G09G2310/027 ,  G09G2310/08

    Abstract: A display device includes a display unit, a scan driver, and a data driver. The display unit includes pixels coupled to scan lines, sensing scan lines, data lines, and sensing lines. The scan driver supplies a scan signal to the scan lines, and supplies a sensing scan signal to the sensing scan lines. The data driver supplies an image data voltage to the data lines, and detects sensing values of the pixels on a pixel column basis through the sensing lines during a sensing period. The data driver includes an analog-to-digital converter which converts the detected sensing values into digital data during the sensing period and outputs sensing data. The analog-to-digital converter pauses the detection of the sensing values during a first period of the sensing period.

    Display device
    4.
    发明授权
    Display device 有权

    公开(公告)号：US12033569B1

    公开(公告)日：2024-07-09

    申请号：US18205394

    申请日：2023-06-02

    Applicant: SAMSUNG DISPLAY CO., LTD.

    Inventor： Jung Ki Min ,  Wook Lee ,  Sang Jae Yeo

    IPC: G09G3/32

    CPC classification number: G09G3/32 ,  G09G2310/0267 ,  G09G2310/0275

    Abstract: A display device includes a display unit, a scan driver, and a data driver. The display unit includes pixels coupled to scan lines, sensing scan lines, data lines, and sensing lines. The scan driver supplies a scan signal to the scan lines, and supplies a sensing scan signal to the sensing scan lines. The data driver supplies an image data voltage to the data lines, and detects sensing values of the pixels on a pixel column basis through the sensing lines during a sensing period. The data driver includes an analog-to-digital converter which converts the detected sensing values into digital data during the sensing period and outputs sensing data. The analog-to-digital converter pauses the detection of the sensing values during a first period of the sensing period.

    Display device including compensation
    5.
    发明授权
    Display device including compensation 有权

    公开(公告)号：US10553156B2

    公开(公告)日：2020-02-04

    申请号：US16162105

    申请日：2018-10-16

    Applicant: Samsung Display Co., Ltd.

    Inventor： Sang Jae Yeo ,  Wook Lee

    IPC: G09G3/32 ,  G09G3/3233 ,  G09G3/3291 ,  G09G3/3266

    Abstract: A display device includes: a first pixel row including n pixels coupled to a first scan line; a second pixel row including m pixels coupled to a second scan line; a first power voltage source for supplying a first power voltage to the pixels of the first pixel row and the second pixel row through a first power voltage line; a current sensor for sensing a value of a line current flowing between the first power voltage line and a selected pixel row among the first pixel row and the second pixel row; and a timing controller for calculating a converted current value of the selected pixel row, wherein n is a natural number, and m is a natural number greater than n.

    Display device
    6.
    发明授权
    Display device 有权

    公开(公告)号：US11705040B2

    公开(公告)日：2023-07-18

    申请号：US17711988

    申请日：2022-04-01

    Applicant: Samsung Display Co., Ltd.

    Inventor： Seok Gyu Ban ,  Kyung Man Kim ,  Sang Jae Yeo

    IPC: G09G3/20

    CPC classification number: G09G3/20 ,  G09G2310/06 ,  G09G2320/029 ,  G09G2320/043

    Abstract: A display device includes a data line, a pixel electrically connected to the data line, a data driver for outputting a data voltage, and a transmitter electrically connected between an output terminal of the data driver and the data line. The transmitter may transmit an instance of the data voltage to the data line in a first period. The transmitter may amplify a second instance of the data voltage to generate a reference voltage and then transmit the reference voltage to the data line in a second period different from the first period. The pixel includes a light emitting element for emitting light in response to the first instance of the data voltage. A voltage level of the reference voltage may be higher than a voltage level of the data voltage.

    Display device
    9.
    发明授权
    Display device 有权

    公开(公告)号：US11308837B2

    公开(公告)日：2022-04-19

    申请号：US16848763

    申请日：2020-04-14

    Applicant: Samsung Display Co., Ltd.

    Inventor： Seok Gyu Ban ,  Kyung Man Kim ,  Sang Jae Yeo

    IPC: G09G3/20

    Abstract: A display device includes a data line, a pixel electrically connected to the data line, a data driver for outputting a data voltage, and a transmitter electrically connected between an output terminal of the data driver and the data line. The transmitter may transmit an instance of the data voltage to the data line in a first period. The transmitter may amplify a second instance of the data voltage to generate a reference voltage and then transmit the reference voltage to the data line in a second period different from the first period. The pixel includes a light emitting element for emitting light in response to the first instance of the data voltage. A voltage level of the reference voltage may be higher than a voltage level of the data voltage.

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