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    DISPLAY DEVICE AND DRIVING METHOD THEREOF
    12.
    发明申请
    DISPLAY DEVICE AND DRIVING METHOD THEREOF 审中-公开
    显示装置及其驱动方法

    公开(公告)号：US20160372044A1

    公开(公告)日：2016-12-22

    申请号：US15067986

    申请日：2016-03-11

    Applicant: SAMSUNG DISPLAY CO., LTD. ,  KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

    Inventor： Oh Jo Kwon ,  Ji Woong Kim ,  Choong Sun Shin ,  Joo Hyung Lee ,  Jun Suk Bang ,  Gyu Hyeong Cho

    IPC: G09G3/3258 ,  G09G3/3291

    CPC classification number: G09G3/3291 ,  G09G3/3233 ,  G09G2310/0248 ,  G09G2310/027 ,  G09G2310/0286 ,  G09G2310/0291 ,  G09G2310/08 ,  G09G2320/0252

    Abstract: A display device includes pixels at respective crossing regions of scan lines and data lines, a scan driver that is configured to supply a scan signal to the scan lines, and a data driver that is configured to supply a pre-emphasis voltage to the data lines using a first constant for controlling a voltage value of the pre-emphasis voltage, and using a second constant for controlling a supply time of the pre-emphasis voltage, and supply data signals to the data lines after the supply of the pre-emphasis voltage, wherein at least one of the first or second constants is stored in each channel corresponding to each of the data lines.

    Abstract translation: 显示装置包括在扫描线和数据线的相应交叉区域处的像素，被配置为向扫描线提供扫描信号的扫描驱动器，以及被配置为向数据线提供预加重电压的数据驱动器 使用用于控制预加重电压的电压值的第一常数，以及使用用于控制预加重电压的供给时间的第二常数，并且在提供预加重电压之后将数据信号提供给数据线 其中所述第一或第二常数中的至少一个存储在对应于每条数据线的每个通道中。

    Display device and method of driving the same
    15.
    发明授权
    Display device and method of driving the same 有权

    公开(公告)号：US10964270B2

    公开(公告)日：2021-03-30

    申请号：US16817527

    申请日：2020-03-12

    Applicant: Samsung Display Co., Ltd.

    Inventor： Ji Woong Kim ,  Oh Jo Kwon ,  Hyo Jin Lee ,  Se Hyuk Park

    IPC: G09G3/3266 ,  G09G3/3291

    Abstract: A method of driving a pixel including: during a first period of a first frame, applying a first scan signal having a turn-on level to the first scan line, applying a data voltage to a data line, and applying a second scan signal having the turn-on level to the second scan line; and during a second period of a second frame, applying the first scan signal having the turn-on level to the first scan line, applying a bias voltage to the data line, and applying the second scan signal having a turn-off level to the second scan line, the second frame is a frame subsequent to the first frame, the second period is longer than the first period, and a light-emitting diode emits light at luminance based on the data voltage during at least a portion of the first frame and at least a portion of the second frame.

    Display device and method of driving display device
    16.
    发明授权
    Display device and method of driving display device 有权

    公开(公告)号：US10902780B2

    公开(公告)日：2021-01-26

    申请号：US16402169

    申请日：2019-05-02

    Applicant: Samsung Display Co., Ltd.

    Inventor： Jeon Kyoo Kim ,  Oh Jo Kwon ,  Jiwoong Kim ,  JunYong Song ,  Dong Won Lee ,  Jae Keun Lim

    IPC: G09G3/3266 ,  G09G3/3258 ,  G09G3/3275

    Abstract: A display device includes data lines, scan lines, and pixels. Each of the pixels includes an organic light emitting diode, a first transistor (OLED), and a second transistor. The first transistor is electrically connected to an anode of the OLED. The second transistor is electrically connected to the first transistor, a scan line among the scan lines, and a data line among the data lines. The second transistors of the pixels may receive instances of a reference voltage from the data lines during a first period of a frame. The second transistors of the pixels may simultaneously receive instances of a turn-on scan signal from the scan lines during the first period of the frame. Cathodes of the OLEDs of the pixels may receive instances of a turn-off voltage for the OLEDs to turn off during the first period of the frame.

    Organic light-emitting display having sensing transistor
    17.
    发明授权
    Organic light-emitting display having sensing transistor 有权

    公开(公告)号：US10438533B2

    公开(公告)日：2019-10-08

    申请号：US16105862

    申请日：2018-08-20

    Applicant: SAMSUNG DISPLAY CO., LTD.

    Inventor： Oh Jo Kwon ,  Joo Hyung Lee ,  Kyung Youl Min

    IPC: G09G3/3233 ,  G09G3/3275 ,  G09G3/3291

    Abstract: An organic light-emitting display includes: a display panel including first and second pixels, each having an organic light-emitting diode; and a data driver including a first operational amplifier having a non-inverting terminal coupled to a reference voltage terminal and an inverting terminal coupled to the first pixel, and a second operational amplifier having a non-inverting terminal coupled to the reference voltage terminal and an inverting terminal coupled to the second pixel. The first pixel includes a sensing transistor, a first driving transistor, and a first switch transistor. The second pixel includes a second driving transistor and a second switch transistor.

    AMOLED display device including compensaton unit and driving method thereof
    20.
    发明授权
    AMOLED display device including compensaton unit and driving method thereof 有权

    公开(公告)号：US09805648B2

    公开(公告)日：2017-10-31

    申请号：US14253725

    申请日：2014-04-15

    Applicant: Samsung Display Co., Ltd.

    Inventor： Bo Yeon Kim ,  Oh Jo Kwon ,  Choong Sun Shin

    IPC: G09G3/3233

    CPC classification number: G09G3/3233 ,  G09G2300/0842 ,  G09G2320/045

    Abstract: A display device is disclosed. In one aspect, the display device includes a plurality of pixels, a plurality of data lines respectively connected to the pixels, and a compensation unit connected to at least one the data lines. The compensation unit includes a first capacitor storing a leakage current of a pixel connected to the data line, a second capacitor storing a difference current, where the difference current is the difference between a reference current and a pixel current measured when a data signal of a reference gray signal is applied to the pixel. The compensation unit also includes a comparator outputting a difference value between the voltages stored in the first and second capacitors. According to embodiments, is possible to measure an accurate pixel current regardless of a leakage current and accurately detect deterioration of a pixel.

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