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    Display panel and method of testing display panel
    3.
    发明授权
    Display panel and method of testing display panel 有权

    公开(公告)号：US11710432B2

    公开(公告)日：2023-07-25

    申请号：US17749690

    申请日：2022-05-20

    Applicant: Samsung Display Co., Ltd.

    Inventor： Hyun Joon Kim ,  Jun Ki Jeong ,  Kyung Hoon Chung ,  Kyung Bae Kim ,  Seung Chan Lee ,  Chong Chul Chai

    IPC: G09G3/00

    CPC classification number: G09G3/006 ,  G09G2300/0842 ,  G09G2330/10 ,  G09G2330/12

    Abstract: A method of testing a display panel including a pixel coupled to first, second, and third power lines, a data line, scan lines, an emission control line, and a test line, the method includes: applying a first power supply voltage to the first power line; applying a test voltage having a turn-on voltage level to the second power line; applying a scan signal having a turn-on voltage level sequentially to the scan lines and an emission control signal having a turn-on voltage level to the emission control line; applying a gate signal to the test line to turn on a test transistor coupled between two electrode of a light emitting element included in the pixel; measuring a sensing voltage output through the data line; and determining whether the pixel is defective, based on a voltage level of the measured sensing voltage.

    Display device including symmetrically disposed transistors
    4.
    发明授权
    Display device including symmetrically disposed transistors 有权

    公开(公告)号：US11411065B2

    公开(公告)日：2022-08-09

    申请号：US16940904

    申请日：2020-07-28

    Applicant: SAMSUNG DISPLAY CO., LTD.

    Inventor： Kang Moon Jo ,  Young Wan Seo ,  Chong Chul Chai

    IPC: H01L29/08 ,  H01L27/32 ,  G09G3/32

    Abstract: A display device includes a first pixel including a first transistor, a second transistor, and a third transistor, a second pixel disposed adjacent to the first pixel in a first direction, and including a first transistor, a second transistor, and a third transistor, and an initialization voltage line disposed between the first pixel and the second pixel, and extending in a second direction crossing the first direction. The second transistor of the first pixel and the second transistor of the second pixel are connected to the initialization voltage line. The first, second, and third transistors of the first pixel and the first, second, and third transistors of the second pixel are symmetrical with respect to the initialization voltage line.

    Scan driver and display device for driving a plurality of scan lines
    5.
    发明授权
    Scan driver and display device for driving a plurality of scan lines 有权

    公开(公告)号：US11114036B2

    公开(公告)日：2021-09-07

    申请号：US16434432

    申请日：2019-06-07

    Applicant: Samsung Display Co., Ltd.

    Inventor： Boyoung Chung ,  Youngwan Seo ,  Dongwoo Kim ,  Yeonkyung Kim ,  Chong Chul Chai

    IPC: G06F3/038 ,  G09G3/3266 ,  G09G3/3225

    Abstract: A scan driver includes a plurality of circuit stages, each circuit stage including a first input part configured to transfer a carry signal to a first node in response to a first clock signal, a second input part configured to transfer the first clock signal to a second node in response to a signal of the first node, a first output part configured to transfer a third clock signal to an output terminal in response to a signal of the second node, a holding part configured to maintain a signal of a third node response to a second clock signal, and a second output part configured to transfer a signal of the third node to the output terminal in response to the second clock signal.

    Pixel and organic light emitting display device using the same
    6.
    发明授权
    Pixel and organic light emitting display device using the same 有权

    公开(公告)号：US10388220B2

    公开(公告)日：2019-08-20

    申请号：US15698420

    申请日：2017-09-07

    Applicant: Samsung Display Co., Ltd.

    Inventor： Bo Yong Chung ,  Jun Hyun Park ,  Young Wan Seo ,  An Su Lee ,  Kang Moon Jo ,  Chong Chul Chai

    IPC: G09G3/3233 ,  H01L51/52

    Abstract: A pixel including an organic light emitting diode; a first transistor for controlling the amount of current flowing from a first driving power source to a second driving power source via the organic light emitting diode, corresponding to a voltage of a first node; a second transistor coupled between the first node and a second node, the second transistor being turned on when a scan signal is supplied to an ith (i is a natural number) scan line; a third transistor coupled between the second node and an anode electrode of the organic light emitting diode; a first capacitor coupled between a data line and the second node; and a fourth transistor coupled between an initialization power source and the anode electrode of the organic light emitting diode. The fourth transistor is turned on in response to a first control signal being supplied to a first control line.

    Scan driver and driving method thereof
    7.
    发明授权
    Scan driver and driving method thereof 有权

    公开(公告)号：US10347207B2

    公开(公告)日：2019-07-09

    申请号：US15136287

    申请日：2016-04-22

    Applicant: SAMSUNG DISPLAY CO., LTD.

    Inventor： Jong Hee Kim ,  Ji Hye Lee ,  Chong Chul Chai

    IPC: G09G3/36 ,  G11C19/28

    Abstract: A scan driver includes a plurality of stages to receive one or more clock signals, each of the plurality of stages to supply a carry signal to a corresponding first output terminal and to supply a scan signal to a corresponding second output terminal, corresponding to a voltage of a corresponding first node, and each of the plurality of stages including a reset unit, the reset unit to initialize the first node, the first output terminal, and the second output terminal, corresponding to a gate start pulse supplied to a corresponding reset input terminal.

    Display device
    8.
    发明授权
    Display device 有权

    公开(公告)号：US09865218B2

    公开(公告)日：2018-01-09

    申请号：US14642389

    申请日：2015-03-09

    Applicant: Samsung Display Co. Ltd.

    Inventor： Ji Sun Kim ,  Won Sik Oh ,  Yeong Keun Kwon ,  Young Wan Seo ,  Young Soo Yoon ,  Chong Chul Chai

    IPC: G09G3/36

    CPC classification number: G09G3/3688 ,  G09G3/3611 ,  G09G3/3614 ,  G09G2300/0426 ,  G09G2310/0297 ,  G09G2310/08 ,  G09G2330/021

    Abstract: A display device includes pixels arranged in a matrix form, gate lines extending in a first direction; data lines extending in a second direction, first and second unit pixel columns, each defined by adjacent data lines and the pixels connected thereto, first and second channels which transmit data signals to each of the first and second unit pixel columns, and a line selector which connects the first and second channels to the data lines and provides data voltages to the data lines in response to control signals, where a pixel connected to a first gate line is connected to a data line at a side thereof, a pixel connected to a second gate line is connected to a data line at the other side thereof, and each of the first and second channels is connected to a data line of each of the first and second unit pixel columns.

    Pixel, display device comprising the same and having an initialization period and driving method thereof
    9.
    发明授权
    Pixel, display device comprising the same and having an initialization period and driving method thereof 有权

    公开(公告)号：US09842537B2

    公开(公告)日：2017-12-12

    申请号：US14991900

    申请日：2016-01-08

    Applicant: SAMSUNG DISPLAY CO., LTD.

    Inventor： Jae Keun Lim ,  Jong Hee Kim ,  Chong Chul Chai

    IPC: G09G3/32 ,  G09G3/3225

    CPC classification number: G09G3/3225 ,  G09G2300/0876 ,  G09G2310/0216 ,  G09G2310/08 ,  G09G2320/045

    Abstract: A display device includes: a display unit including a plurality of pixels, each of the pixels including: an OLED; and a driving transistor to supply current to an anode of the OLED according to a voltage applied to a gate of the driving transistor and a power supply voltage; a scan driver to supply scan signals to the pixels; an initialization driver to supply initializing signals to the pixels; a data driver to supply data signals to the pixels; light emission drivers to supply first and second light emission signals to the pixels; and a power supply to supply the power supply voltage and an initialization voltage to the pixels, wherein the initialization voltage is supplied to the anode during a first period, and the power supply voltage corresponding to a threshold voltage of the driving transistor is supplied to the gate during a first sub-period of the first period.

    SCAN DRIVER AND DRIVING METHOD THEREOF
    10.
    发明申请
    SCAN DRIVER AND DRIVING METHOD THEREOF 审中-公开
    扫描驱动器及其驱动方法

    公开(公告)号：US20170076684A1

    公开(公告)日：2017-03-16

    申请号：US15136287

    申请日：2016-04-22

    Applicant: SAMSUNG DISPLAY CO., LTD.

    Inventor： Jong Hee Kim ,  Ji Hye Lee ,  Chong Chul Chai

    IPC: G09G3/36

    CPC classification number: G09G3/3677 ,  G09G2310/0286 ,  G11C19/287

    Abstract: A scan driver includes a plurality of stages to receive one or more clock signals, each of the plurality of stages to supply a carry signal to a corresponding first output terminal and to supply a scan signal to a corresponding second output terminal, corresponding to a voltage of a corresponding first node, and each of the plurality of stages including a reset unit, the reset unit to initialize the first node, the first output terminal, and the second output terminal, corresponding to a gate start pulse supplied to a corresponding reset input terminal.

    Abstract translation: 扫描驱动器包括多个级以接收一个或多个时钟信号，多个级中的每一个级将进位信号提供给对应的第一输出端，​​并将扫描信号提供给相应的第二输出端，对应于电压 并且所述多个级中的每一个包括复位单元，所述复位单元用于初始化所述第一节点，所述第一输出端子和所述第二输出端子，对应于提供给相应的复位输入的门启动脉冲 终奌站。

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