DRIVING BACKPLANE, DISPLAY PANEL AND DISPLAY DEVICE

    公开(公告)号:US20220246074A1

    公开(公告)日:2022-08-04

    申请号:US17475529

    申请日:2021-09-15

    Abstract: The present disclosure provides a driving backplane, a display panel and a display device. The driving backplane comprises: a base substrate having a plurality of first conductive vias; a pixel circuit layer disposed on the base substrate and comprising a plurality of pixel circuits and a plurality of signal lines; a conductive portion, at least part of which is disposed in one first conductive via; a conductive pattern layer disposed on the base substrate and comprising a plurality of first conductive patterns; and a shielding layer disposed between the pixel circuit layer and the conductive pattern layer and having a plurality of hollow areas; wherein each of the plurality of signal lines is coupled to one first conductive pattern through at least one of the conductive portions.

    DISPLAY PANEL, DISPLAY DEVICE AND DRIVING METHOD

    公开(公告)号:US20220208101A1

    公开(公告)日:2022-06-30

    申请号:US17488115

    申请日:2021-09-28

    Inventor: Jing LIU Zihua LI

    Abstract: The present disclosure provides a display panel, a display device and a driving method. The display panel includes a display substrate and a driving chip. The display panel is configured to write a data signal to a corresponding pixel circuit at a pre-writing phase and a target data writing phase. The driving chip includes a voltage compensation module configured to obtain a compensation voltage value for the pixel circuits in each row in accordance with the quantity of pre-writing phases. Each pixel circuit is configured to write a pre-writing voltage stored in a parasitic capacitor to a gate electrode of a driving transistor in response to a pre-scanning signal at the pre-writing phase, and write a target writing voltage stored in the parasitic capacitor to the gate electrode of the driving transistor in response to a target scanning signal at the target data writing phase.

    METHOD FOR DETECTING RESISTANCE OF SIDE TRACE OF DISPLAY SUBSTRATE AND DISPLAY SUBSTRATE

    公开(公告)号:US20210375700A1

    公开(公告)日:2021-12-02

    申请号:US17255079

    申请日:2019-11-29

    Abstract: The present disclosure provides a method for detecting resistance of a side trace of a display substrate and the display substrate, and belongs to the field of display technology. In the method for detecting resistance of a side trace of a display substrate, the display substrate includes: a base substrate including a first surface and a second surface opposite to each other; a plurality of first pads at intervals on the first surface; and a plurality of second pads at intervals on the second surface; the first pad is electrically connected to a corresponding second pad through a side trace; the method includes forming at least one detection unit; wherein forming the detection unit includes: connecting two first pads through a connection part; and detecting two second pads in the detection unit, and obtaining resistance of the detection unit to obtain the resistance of the side trace.

    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

    Abstract: 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.

Patent Agency Ranking