TOUCH SUBSTRATE, DETECTION METHOD AND DISPLAY DEVICE

    公开(公告)号:US20200218384A1

    公开(公告)日:2020-07-09

    申请号:US16527643

    申请日:2019-07-31

    Abstract: A touch substrate includes a common electrode, a piezoelectric material layer and a touch electrode sequentially disposed on the substrate. The touch electrode includes a plurality of touch driving electrodes and a plurality of touch sensing electrodes, which cross with each other and are insulated from one another. The touch driving electrode includes a plurality of first touch sub-electrodes that are electrically connected. An overlapping area of front projections of the common electrode and each of the first touch control sub-electrodes on the substrate is smaller than an area of a pattern enclosed by a peripheral boundary of the first touch sub-electrodes.

    Fingerprint identification panel and preparation method thereof, driving method and fingerprint identification device

    公开(公告)号:US10572752B2

    公开(公告)日:2020-02-25

    申请号:US16027844

    申请日:2018-07-05

    Abstract: A fingerprint identification panel and a preparation method thereof, a driving method and a fingerprint identification device are provided. A driving electrode and a sensing electrode are provided between a base substrate and a cover plate, the driving electrode and the sensing electrode intersecting with each other define an identification unit, a photoelectric converter unit is provided in the identification unit. The photoelectric converter unit includes a light shielding electrode, a second electrode, and a photoelectric converter layer located between the light shielding electrode and the second electrode. The light shielding electrode is located between the photoelectric converter layer and the base substrate. The light shielding electrode includes a first electrode, one of the first electrode and the second electrode is electrically connected with the driving electrode, and the other of the first electrode and the second electrode is electrically connected with the sensing electrode.

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