CHIP BONDING METHOD AND BONDING DEVICE

    公开(公告)号:US20210159208A1

    公开(公告)日:2021-05-27

    申请号:US16830834

    申请日:2020-03-26

    IPC分类号: H01L23/00 H01L25/18 H01L25/00

    摘要: A chip bonding method and a bonding device. The chip bonding method is used for bonding a chip to a display module, the display module includes a substrate and a functional layer on the substrate, the substrate includes a first substrate portion and a second substrate portion, the functional layer is on the first substrate portion, and an electrode is on an upper side of the second substrate portion. The chip bonding method includes: forming a light absorbing film layer on a side of the second substrate portion facing away from the electrode; coating a conductive adhesive film on the electrode, and placing the chip on the conductive adhesive film; and irradiating, by using a laser beam, a side of the second substrate portion facing away from the electrode.

    ARRAY SUBSTRATE AND PREPARATION METHOD THEREFOR, AND DISPLAY PANEL AND DISPLAY DEVICE

    公开(公告)号:US20210296394A1

    公开(公告)日:2021-09-23

    申请号:US17264036

    申请日:2020-06-15

    IPC分类号: H01L27/15 H01L33/62 H01L33/00

    摘要: An array substrate and a manufacturing method thereof, a display panel, and a display device are provided. The array substrate includes a bonding region and a non-bonding region, and further includes: a rigid substrate, in the non-bonding region, a driving circuit layer, in the non-bonding region; a light-emitting diode layer, on a side of the driving circuit layer away from the rigid substrate; a flexible base layer, m the bonding region and on the same side of the rigid substrate as the driving circuit layer; and a bonding wire layer, on a side of the flexible base layer away from the rigid substrate. The bonding wire layer and the flexible base layer is capable of being bent along an edge of the rigid substrate to a side of the rigid substrate away from the driving circuit layer.

    MICRO-LED TRANSFER METHOD AND DISPLAY PANEL

    公开(公告)号:US20220013398A1

    公开(公告)日:2022-01-13

    申请号:US17295036

    申请日:2020-05-09

    摘要: A micro-LED transfer method, including: moving a passing substrate to a position above a donor substrate and moving the pasting substrate in a direction approaching the donor substrate to paste up LED grains so that the LED grains are separated from the bearing substrate; moving the pasting substrate with the LED grains to a position above a target substrate with the LED grains being closer to the target substrate than the pasting substrate, and conducting an alignment so that the LED grains are directly opposite to positions on the target substrate where the LED grains are to be arranged; and heating the pasting substrate with the LED grains to a first temperature greater than or equal to a melting temperature of the hot melt adhesive film to melt the hot melt adhesive film, so that the LED grains are separated from the pasting substrate and transferred to the target substrate.