MANUFACTURING METHOD OF DISPLAY SUBSTRATE, ARRAY SUBSTRATE AND DISPLAY DEVICE

    公开(公告)号:US20200312881A1

    公开(公告)日:2020-10-01

    申请号:US15777118

    申请日:2017-09-26

    Abstract: A manufacturing method of a display substrate, an array substrate and a display device are provided. The method includes forming a first wire, a first insulation layer, a first and second metal layer, and a photoresist layer; forming a photoresist retained pattern above the first wire; forming a second and first metal layer retained pattern under the photoresist retained pattern; forming a second insulation layer with a thickness less than or equal to a sum of thicknesses of the first and second metal layer; the second insulation layer forming a fracture region at a boundary between a part covering the first insulation layer and another part covering the second metal layer retained pattern; removing the first and second metal layer retained patterns by a wet etch process to expose the first insulation layer; and forming a contact hole exposing the first wire.

    Printed circuit board and display apparatus

    公开(公告)号:US10743405B2

    公开(公告)日:2020-08-11

    申请号:US16456332

    申请日:2019-06-28

    Abstract: The present disclosure provides a printed circuit board including a plurality of conductive layers separated by insulating medium and a plurality of connection structures. Each connection structure penetrates each of the conductive layers. The plurality of conductive layers comprises a first conductive layer in which first signal lines are located and a second conductive layer in which second signal lines are located, and the first and second signal lines are connected via the connection structures. Anti-pads surrounding the connection structures are provided on others of the plurality of conductive layers except the first and the second conductive layers. For a same connection structure, the anti-pads surrounding the connection structure include adjacent anti-pads and nonadjacent anti-pads. Size of the adjacent anti-pads in any direction parallel to the conductive layers is smaller than that of the nonadjacent anti-pads. The present disclosure also provides a display apparatus.

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