SHIFT REGISTER, GATE DRIVE CIRCUIT AND DISPLAY PANEL

    公开(公告)号:US20220293035A1

    公开(公告)日:2022-09-15

    申请号:US17551368

    申请日:2021-12-15

    IPC分类号: G09G3/20 G11C19/28

    摘要: A shift register, a gate drive circuit, and a display panel are provided. The shift register includes an input sub-circuit configured to pre-charge a pull-up node using an input signal; an output sub-circuit configured to output a clock signal through an signal output terminal; a pull-down control sub-circuit configured to control a potential of a pull-down node using a power supply voltage signal; a first pull-down sub-circuit configured to pull down a potential of the pull-down node using a first preset voltage signal; and a first control sub-circuit configured to control the potential of the pull-up node using a second preset voltage signal in response to the potential of the pull-down node; a potential of the first preset voltage signal is lower than a potential of a non-operating level signal of the first pull-down sub-circuit, but higher than a potential of the second preset voltage signal.