Shift register unit, gate line driving circuit and driving method thereof

    公开(公告)号:US10943553B2

    公开(公告)日:2021-03-09

    申请号:US15774568

    申请日:2017-09-22

    IPC分类号: G09G3/36

    摘要: Disclosed are a shift register unit, a gate driving circuit and a driving method thereof, the shift register unit including: an input sub-circuit configured to provide a trigger signal received by the signal input terminal to the pull-up node; an output sub-circuit configured to output, to the signal output terminal, a pulse signal provided by the first clock signal terminal as a driving signal for scanning a gate line under control of the pull-up node; a reset sub-circuit configured to reset the pull-up node and the signal output terminal under control of the reset terminal; and an input selection sub-circuit configured to select a trigger signal to be provided to the signal input terminal according to voltage levels at first to third control terminals.

    Shift register and driving method thereof, gate driving circuit, and display device

    公开(公告)号:US10685615B2

    公开(公告)日:2020-06-16

    申请号:US15979701

    申请日:2018-05-15

    IPC分类号: G11C19/00 G09G3/36 G11C19/28

    摘要: The disclosure provides a shift register, a driving method for the shift register, a gate driving circuit and a display device. The shift register comprises an input component, a reset component, a node control module, a chamfering control component and an output component. By setting the chamfering control component and cooperation among the above five components, an amplitude of a scanning signal output by a driving signal output terminal is changed so as to generate a scanning signal with a chamfered waveform. When the scanning signal with the chamfered waveform is sequentially input to each pixel unit in a corresponding row by a corresponding gate line, a jump voltage ΔVp on a pixel electrode of the pixel unit can be reduced, thereby mitigating phenomena such as flashing and image sticking of the display panel and improving the display quality of the display panel.

    Shift Register Unit and Driving Method Thereof, Gate Driving Device and Display Device

    公开(公告)号:US20190096350A1

    公开(公告)日:2019-03-28

    申请号:US15928353

    申请日:2018-03-22

    IPC分类号: G09G3/36 G11C19/28

    摘要: The present disclosure provides a shift register unit and a driving method thereof, a gate driving device and a display device. The shift register unit includes an input circuit, an output circuit, a pull-down circuit, a first pull-down control circuit, and a second pull-down control circuit, wherein the second pull-down control circuit is provided with a first pull-down compensation transistor and a second pull-down compensation transistor and connected to a second power supply voltage, to compensate a threshold voltage drift of a second pull-down control transistor in the second pull-down control circuit so as to avoid abnormality of the shift register unit which would be caused by the threshold voltage drift of the second pull-down control transistor driven by a long-time high voltage, thereby ensuring the stability of the shift register unit.

    Mura compensation circuit and method, driving circuit and display device

    公开(公告)号:US10403218B2

    公开(公告)日:2019-09-03

    申请号:US15515922

    申请日:2016-05-12

    IPC分类号: G09G3/36 G02F1/133

    摘要: A Mura compensation circuit and method, a driving circuit and a display device are provided. The Mura compensation circuit comprises: a vertical Mura compensation unit, for providing a corresponding gamma voltage to a vertical block Mura region and a vertical non-Mura region of a display panel respectively, to compensate for a vertical Mura phenomenon; and/or a horizontal Mura compensation unit, for providing a corresponding gate drive signal and/or a corresponding charging/discharging control signal to a horizontal block Mura region and a horizontal non-Mura region of a display panel respectively, to compensate for a horizontal Mura phenomenon. The Mura compensation circuit can make the different regions of the display panel have the same display effect, and improve reduction of display quality caused by impedance difference at different positions of the display panel, thereby raising the quality of a picture, and can be promoted and applied widely.