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    Display device and driving method thereof
    14.
    发明授权
    Display device and driving method thereof 有权

    公开(公告)号：US11514849B2

    公开(公告)日：2022-11-29

    申请号：US17665990

    申请日：2022-02-07

    Applicant: Samsung Display Co., Ltd.

    Inventor： Ki Hyun Pyun ,  Myoung Seop Song ,  Myung Ho Lee

    IPC: G09G3/30 ,  G09G3/32

    Abstract: A display device and a driving method thereof are disclosed, and the display device includes a first pixel connected to a first data line, a first scan line, and a first power source line, emitting light in a first period, and not emitting light in a second period following the first period; a second pixel connected to a second data line, the first scan line, and the first power source line, not emitting light in the first period, and emitting light in the second period; a current sensor sensing a current flowing through the first power source line in the first period to provide a first sensing current value, and sensing the current flowing through the first power source line in the second period to provide a second sensing current value; and a memory storing a first block target current value corresponding to the first sensing current value and a second block target current value corresponding to the second sensing current value.

    Scan driver and display device including the same
    15.
    发明授权
    Scan driver and display device including the same 有权

    公开(公告)号：US11158265B2

    公开(公告)日：2021-10-26

    申请号：US17115034

    申请日：2020-12-08

    Applicant: Samsung Display Co., Ltd.

    Inventor： Hae Kwan Seo ,  Jae Woo Ryu ,  Myung Ho Lee

    IPC: G09G3/3266 ,  G09G3/3275 ,  G09G3/3233

    Abstract: In a scan driver and a display device including the same, a first input terminal of a stage receives a scan start signal or an output signal of a previous stage when a first control signal is supplied, a second input terminal of the stage receives one of two clock signals, a third input terminal of the stage receives the other of the two clock signals, and a fourth input terminal of the stage receives a scan start signal or an output signal of a next stage when a second control signal is supplied, and a first power source is outputted from an output terminal of the stage when a first clock signal and a second clock signal are low levels.

    Display device
    16.
    发明授权
    Display device 有权

    公开(公告)号：US11127667B2

    公开(公告)日：2021-09-21

    申请号：US16520018

    申请日：2019-07-23

    Applicant: SAMSUNG DISPLAY CO., LTD.

    Inventor： Seung Jun Lee ,  Myung Ho Lee

    IPC: H05K1/02 ,  H05K1/11 ,  H05K1/14 ,  H05K1/18 ,  H05K5/00 ,  G02F1/13 ,  G02F1/1345 ,  G02F1/1362 ,  G06F3/038 ,  G06F3/041 ,  H01L23/12 ,  H01L23/48 ,  H01L23/495 ,  H01L23/538 ,  H01L23/498 ,  H01L27/32

    Abstract: A display device comprises a pad terminal area and a first circuit board attached to the pad terminal area. The pad terminal area comprises a first pad terminal area having a first pad terminal row of first pad terminals and a second pad terminal area having a second pad terminal row of second pad terminals. The first circuit board comprises a first film having a first lead terminal row of first lead terminals and a second film having a second lead terminal row of second lead terminals. The first lead terminals are connected to the first pad terminals, the second lead terminals are connected to the second pad terminals, an end of the second film protrudes outward from an end of the first film, and the second pad terminal area overlaps an area between the end of the first film and the end of the second film.

    Display device
    17.
    发明授权
    Display device 有权

    公开(公告)号：US11011120B2

    公开(公告)日：2021-05-18

    申请号：US16806012

    申请日：2020-03-02

    Applicant: SAMSUNG DISPLAY CO., LTD.

    Inventor： Ki Hyun Pyun ,  Myoung Seop Song ,  Myung Ho Lee

    IPC: G09G3/3291 ,  G09G3/3266

    Abstract: A display device includes: first pixels coupled to data lines and a first scan line; second pixels coupled to the data lines and a second scan line; a data driver for sequentially supplying, to the data lines, first data voltages corresponding to first grayscale values of the first pixels and second data voltages corresponding to second grayscale values of the second pixels; a scan driver for supplying a first scan signal to the first scan line, and supplying a second scan signal to the second scan line; and a precharge controller for determining a width of a pulse of the second scan signal, based on a comparison result of the second grayscale values and previous frame grayscale values and a comparison result of the first grayscale values and the second grayscale values.

    Power voltage generator and display device having the same
    19.
    发明授权
    Power voltage generator and display device having the same 有权

    公开(公告)号：US11349392B2

    公开(公告)日：2022-05-31

    申请号：US16871157

    申请日：2020-05-11

    Applicant: Samsung Display Co., Ltd.

    Inventor： Kyun Ho Kim ,  Jung-taek Kim ,  Joon Suk Baik ,  Sang Su Han ,  Jae Woo Ryu ,  Myung Ho Lee

    IPC: H02M3/156 ,  H03F3/14

    Abstract: A power voltage generator includes a booster, a voltage sensor, a constant voltage controller and a constant current controller. The booster is configured to boost an input voltage to an output voltage based on an on-off operation of a switch. The voltage sensor is configured to generate a sensing voltage by sensing the output voltage. The constant voltage controller is configured to generate a first switching signal to control the switch by comparing the sensing voltage with a reference voltage. The constant current controller is configured to generate a gain based on a ratio of an electrode signal of the switch and a target signal by comparing the electrode signal of the switch with the target signal.

    Display device and driving method thereof
    20.
    发明授权
    Display device and driving method thereof 有权

    公开(公告)号：US11244600B2

    公开(公告)日：2022-02-08

    申请号：US16842444

    申请日：2020-04-07

    Applicant: Samsung Display Co., Ltd.

    Inventor： Ki Hyun Pyun ,  Myoung Seop Song ,  Myung Ho Lee

    IPC: G09G3/30 ,  G09G3/32

    Abstract: A display device and a driving method thereof are disclosed, and the display device includes a first pixel connected to a first data line, a first scan line, and a first power source line, emitting light in a first period, and not emitting light in a second period following the first period; a second pixel connected to a second data line, the first scan line, and the first power source line, not emitting light in the first period, and emitting light in the second period; a current sensor sensing a current flowing through the first power source line in the first period to provide a first sensing current value, and sensing the current flowing through the first power source line in the second period to provide a second sensing current value; and a memory storing a first block target current value corresponding to the first sensing current value and a second block target current value corresponding to the second sensing current value.

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