Driving method and an apparatus for a fingerprint recognition device

    公开(公告)号:US11288485B2

    公开(公告)日:2022-03-29

    申请号:US16634286

    申请日:2019-07-30

    Abstract: Disclosed herein includes a method, an apparatus, a display device and storage medium storing computer executable instructions for fingerprint recognition. The method may comprise turning on a first subset of a plurality of light sources located on an apparatus, capturing a first fingerprint acquisition frame using a plurality of image sensors on the apparatus, turning on a second subset of the plurality of light sources, and capturing a second fingerprint acquisition frame using the plurality of image sensors. The first fingerprint acquisition frame may include a first set of valid image zones and a first set of invalid image zones. The second fingerprint acquisition frame may include a second set of valid image zones and a second set of invalid image zones. The second set of valid image zones at least partially covers areas of a finger touching interface different from the first set of valid image zones.

    Optical fingerprint sensor and display module

    公开(公告)号:US11309365B2

    公开(公告)日:2022-04-19

    申请号:US16901882

    申请日:2020-06-15

    Abstract: The present disclosure provides an optical fingerprint sensor and a display module. The optical fingerprint sensor includes a photodiode and a switching thin film transistor connected to the photodiode, in which the photodiode includes a first electrode made of a light-absorbing conductive nano-material; the first electrode is located in a same layer as a second electrode of the switching thin film transistor, and the first electrode includes a light-entering end surface facing a light-entering side and a side surface connected to the light-entering end surface, the side surface includes a curved portion, and the second electrode is at least connected to the curved portion.

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