Display device with connection board and method of testing pad contact state thereof

    公开(公告)号:US11094237B2

    公开(公告)日:2021-08-17

    申请号:US16847663

    申请日:2020-04-14

    Abstract: A display device includes a display panel including first to fourth panel pads and a connection board including first to fourth connection board pads coupled to the first to fourth pads, respectively. The first and second panel pads are electrically connected to each other, and the third and fourth panel pads are electrically connected to each other. The connection board includes a driving circuit which generates a first test result signal based on a first panel test signal transmitted to the first connection board pad and a first panel feedback signal received from the second connection board pad, generates a second test result signal based on a second panel test signal transmitted to the third connection board pad and a second panel feedback signal received from the fourth connection board pad, and sequentially outputs the first and second test result signals as a test result signal.

    Display device
    3.
    发明授权

    公开(公告)号:US11543713B2

    公开(公告)日:2023-01-03

    申请号:US16999296

    申请日:2020-08-21

    Abstract: A display device includes a first substrate including a plurality of gate lines extending in a first direction, a plurality of data lines extending in a second direction crossing the first direction, and a plurality of pixels connected to the gate lines to the data lines, a second substrate disposed on the first substrate, an image display layer disposed between the first substrate and the second substrate, a plurality of first pads which electrically connected to the gate lines, respectively, where the first pads further protrude outward than a first side surface of the first substrate, a gate driver facing the first pads, and a first adhesive disposed between the gate driver and the first pads. The first adhesive includes a first conductive film and a plurality of first conductive patterns disposed between the first conductive film and the first pads to respectively overlap the first pads.

    Display device
    5.
    发明授权

    公开(公告)号:US11410589B2

    公开(公告)日:2022-08-09

    申请号:US17434441

    申请日:2020-04-16

    Abstract: A display device includes a display panel, a first connection film, and a second connection film. The display panel includes first pads and second pads. The first connection film includes a first film, which includes a first region connected to the first pads and having a first width and a second region adjacent to the first region and having a second width different from the first width, and a first driving chip mounted on the first film. The second connection film includes a second film, which includes a third region connected to the second pads and having a third width and a fourth region adjacent to the third region and having a fourth width different from the third width and less than the second width, and a second driving chip mounted on the second film.

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