Scanning signal line drive circuit and display device provided with same

    公开(公告)号:US12100358B2

    公开(公告)日:2024-09-24

    申请号:US18504299

    申请日:2023-11-08

    IPC分类号: G09G3/20 G09G3/3266 G11C19/28

    摘要: A unit circuit constituting each of stages of a shift register is provided with a thin film transistor, the thin film transistor including a control terminal applied with one of a plurality of gate clock signals, a first conduction terminal connected to a third node, and a second conduction terminal applied with a direct current power supply voltage of a low level. The third node is connected to a control terminal of a thin film transistor configured to change a potential of a second node toward a high level. When a gate clock signal applied to a control terminal of a thin film transistor configured to change a potential of the third node toward the high level changes from the high level to the low level, the gate clock signal applied to the control terminal of the thin film transistor changes from the low level to the high level.

    Active matrix substrate and liquid crystal display device

    公开(公告)号:US11644729B2

    公开(公告)日:2023-05-09

    申请号:US17743517

    申请日:2022-05-13

    摘要: An active matrix substrate includes a first pixel region defined by first and second source bus lines adjacent to each other and first and second gate bus lines adjacent to each other and further includes a first pixel electrode and a first oxide semiconductor TFT that are associated with the first pixel region. The first oxide semiconductor TFT includes an oxide semiconductor layer and a gate electrode electrically connected to the first gate bus line. The oxide semiconductor layer includes a channel region and a low-resistance region including first and second regions located on opposite sides of the channel region. When viewed in a direction normal to the substrate, the low-resistance region extends across the first source bus line to another pixel region and partially overlaps a pixel electrode disposed in the other pixel region with an insulating layer interposed therebetween.