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    Scan driver and display device having the same
    41.
    发明授权
    Scan driver and display device having the same 有权

    公开(公告)号：US11348530B2

    公开(公告)日：2022-05-31

    申请号：US16707994

    申请日：2019-12-09

    Applicant: Samsung Display Co., Ltd.

    Inventor： Yang Hwa Choi ,  Jun Hyun Park ,  Dong Woo Kim ,  Kang Moon Jo ,  Sung Jae Moon ,  An Su Lee ,  Woong Sik Choi

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

    Abstract: A stage of a scan driver includes: a first driving controller for controlling a voltage of a first node and a voltage of a second node; a second driving controller for controlling a voltage of a first driving node, based on a sensing-on signal, a next carry signal, a first control clock signal, a second control clock signal, the voltage of the first node, and a voltage of a sampling node, and controlling a voltage of a second driving node, based on the voltage of the sampling node and the voltage of the first driving node; an output buffer for outputting a carry signal, the first scan signal, and the second scan signal; and a coupling controller. The second driving controller maintains the voltage of the first driving node as a gate-off voltage in response to the voltage of the second driving node and a third control clock signal.

    Pixel circuit and display apparatus having the same
    42.
    发明授权
    Pixel circuit and display apparatus having the same 有权

    公开(公告)号：US11322093B2

    公开(公告)日：2022-05-03

    申请号：US17062971

    申请日：2020-10-05

    Applicant: Samsung Display Co., Ltd.

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

    IPC: G09G3/3258 ,  G09G3/3233

    Abstract: A pixel circuit includes a first switching element including a control electrode connected to a first node, an input electrode which receives a first power voltage and an output electrode connected to a third node, a second switching element including a control electrode which receives a compensation gate signal, an input electrode connected to a second node and an output electrode connected to the third node, a third switching element including a control electrode which receives a write gate signal, an input electrode connected to the first node and an output electrode connected to the second node, a storage capacitor including a first electrode which receives an initialization voltage and a second electrode connected to the first node, a program capacitor which receives a data voltage and connected to the second node, and an organic light emitting element connected to the third node and which receives a second power voltage.

    Display panel and display device
    44.
    发明授权
    Display panel and display device 有权

    公开(公告)号：US11199573B2

    公开(公告)日：2021-12-14

    申请号：US16851590

    申请日：2020-04-17

    Applicant: Samsung Display Co., Ltd.

    Inventor： Jun Hyun Park ,  Dong Woo Kim ,  An Su Lee ,  Kang Moon Jo

    IPC: G01R31/28 ,  G01R31/56 ,  G09G3/00 ,  G09G3/3266

    Abstract: A display panel includes: a pixel region comprising a plurality of pixels; an open/short test region comprising a plurality of open/short test pads; a dummy stage configured to generate a carry signal in response to a scan start signal; and a plurality of stages configured to sequentially provide a plurality of scan signals to the plurality of pixels in response to the carry signal, wherein the plurality of stages is spaced apart by a first distance from the pixel region, and the dummy stage is spaced apart by a second distance greater than the first distance from the open/short test region.

    Display device having a storage capacitor
    45.
    发明授权
    Display device having a storage capacitor 有权

    公开(公告)号：US11177333B2

    公开(公告)日：2021-11-16

    申请号：US16735962

    申请日：2020-01-07

    Applicant: SAMSUNG DISPLAY CO., LTD.

    Inventor： Jun Hyun Park ,  Dong Woo Kim ,  Sung Jae Moon ,  Kang Moon Jo

    IPC: H01L29/12 ,  H01L27/32

    Abstract: A display device having high resolution includes: a first conductive layer, an active pattern, second to fourth conductive layers, and a pixel electrode sequentially formed on a substrate, with first to fourth insulating layers separately interposed therebetween, the first conductive layer including a lower pattern, the active pattern including a source region, a channel region, and a drain region, the second conductive layer including a gate electrode overlapping the channel region and a driving gate electrode connected to the gate electrode, the third conductive layer including a capacitor electrode overlapping the driving gate electrode, the fourth conductive layer including an additional capacitor electrode overlapping the capacitor electrode. The driving gate electrode and the capacitor electrode may form a storage capacitor, the pixel electrode and the additional capacitor electrode may form a first additional capacitor, and the capacitor electrode and the additional capacitor electrode may form a second additional capacitor.

    Organic light emitting display device and driving method thereof
    46.
    发明授权
    Organic light emitting display device and driving method thereof 有权

    公开(公告)号：US11081056B2

    公开(公告)日：2021-08-03

    申请号：US15989673

    申请日：2018-05-25

    Applicant: SAMSUNG DISPLAY CO., LTD.

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

    IPC: G09G3/3266 ,  G09G3/3225 ,  G09G3/3233

    Abstract: An organic light emitting display device includes a plurality of pixels. A pixel on an ith horizontal line includes a first transistor coupled between a first power source and a first node and having a gate electrode coupled to a second node. An organic light emitting diode is coupled between the first node and a second power source. A second transistor is coupled between the second and third nodes and is turned on when a first scan signal is supplied to an ith first scan line. A third transistor is coupled between the third and first nodes. A first capacitor is coupled between an ith control line and the second node. A second capacitor is coupled between the third node and a data line. The pixels are simultaneously driven during first, second, and third periods of a frame period and sequentially driven during a fourth period of the frame period.

    DISPLAY DEVICE
    47.
    发明申请
    DISPLAY DEVICE 审中-公开

    公开(公告)号：US20200185489A1

    公开(公告)日：2020-06-11

    申请号：US16596952

    申请日：2019-10-09

    Applicant: SAMSUNG DISPLAY CO., LTD.

    Inventor： KANG MOON JO ,  Dong Woo Kim ,  Sung Jae Moon ,  Jun Hyun Park ,  An Su Lee

    IPC: H01L27/32 ,  H01L51/52

    Abstract: A display device including: a substrate; an active layer disposed on the substrate and including active patterns; a first conductive layer disposed on the active layer; a second conductive layer disposed on the first conductive layer and including a data line; a third conductive layer disposed on the second conductive layer; and a light-emitting element disposed on the third conductive layer, wherein the first conductive layer includes a scan line, a first voltage line, and a second voltage line, the third conductive layer includes a third voltage line connected to the first voltage line and a fourth voltage line connected to the second voltage line, the first voltage line and the second voltage line extend in a first direction, the third voltage line and the fourth voltage line extend in a second direction, and the third voltage line and the fourth voltage line are alternately arranged in the first direction.

    Display panel, display apparatus having the same and method of driving the same
    48.
    发明授权
    Display panel, display apparatus having the same and method of driving the same 有权

    公开(公告)号：US10657913B2

    公开(公告)日：2020-05-19

    申请号：US15152173

    申请日：2016-05-11

    Applicant: SAMSUNG DISPLAY CO., LTD.

    Inventor： Jun Hyun Park ,  Kyoung-Ju Shin

    IPC: G09G3/36

    Abstract: A display panel includes a gate line, first and second data lines, first and second gate control lines, and first and second pixels. The first pixel includes a double-gate switching element including a gate electrode connected to the gate line, a source electrode connected to the first data line, and another gate electrode connected to the first gate control line. The second pixel includes a double-gate switching element including a gate electrode connected to the gate line, a source electrode connected to the second data line, and a gate electrode connected to the second gate control line. A data voltage having a first polarity is applied to the first data line, another data voltage having a second polarity is applied to the second data line, and first and second gate control voltages are respectively applied to the first and second gate control lines.

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