Fingerprint Recognition Device, Display Substrate and Display Apparatus

    公开(公告)号:US20190294850A1

    公开(公告)日:2019-09-26

    申请号:US16316457

    申请日:2018-03-08

    Abstract: The present disclosure discloses a fingerprint recognition device, a display substrate and a display apparatus. The fingerprint recognition device includes: at least one fingerprint detection component; at least one fingerprint recognition signal line, the fingerprint detection component outputs a detection current to the fingerprint recognition signal line; at least one noise reduction circuit serially coupled in the fingerprint recognition signal line, the noise reduction circuit being a resistive component; and a fingerprint determination circuit coupled to the fingerprint recognition signal line, configured to determine a morphology of a fingerprint according to a current signal, subjected to a noise reduction by the noise reduction circuit and transmitted by the fingerprint recognition signal line. The fingerprint recognition device can filter out the current generated by coupling the fingerprint recognition signal line with other data lines, the interference with the detection current is reduced, the accuracy of the fingerprint recognition is improved.

    FINGERPRINT RECOGNITION AND PIXEL DRIVING CIRCUIT, AND DISPLAY DEVICE COMPRISING THE SAME

    公开(公告)号:US20190188444A1

    公开(公告)日:2019-06-20

    申请号:US16322027

    申请日:2018-05-18

    Abstract: A fingerprint recognition and pixel driving circuit and a display device including the circuit are provided. The circuit includes a first scan line, a second scan line, a third scan line, a light emission control line and a data writing line, a pixel driving sub-circuit for driving a light emitting element of a pixel to emit light according to the first scan signal, the second scan signal, the third scan signal, the light emission control signal, and the data signal, a fingerprint recognition sub-circuit that receives any two of the first scan signal, the second scan signal and the third scan signal through a first read terminal and a reset terminal to generate fingerprint data of a finger based on any two of the first scan signal, the second scan signal and the third scan signal, thereby realizing integration of the fingerprint recognition function with the pixel driving function.

    DISPLAY PANEL AND DISPLAY DEVICE
    34.
    发明申请

    公开(公告)号:US20190180674A1

    公开(公告)日:2019-06-13

    申请号:US16089857

    申请日:2017-10-24

    Abstract: Provided is a display panel comprising including: a base substrate; a plurality of pixel units, each of which is provided with a light emitting structure, each light emitting structure includes a first electrode, a light emitting layer, and a second electrode sequentially stacked on the base substrate; a plurality of pixel circuits respectively disposed in the pixel units for driving the light emitting structure to emit light; a deforming layer disposed above the second electrodes of the light emitting structures; and one or more heating control circuits respectively disposed in different pixel units and each electrically connected to the second electrode of the light emitting structure in a corresponding pixel unit, the heating control circuit is configured to control the second electrode of the light emitting structure in the corresponding pixel unit to generate heat so that the hardness of the deforming layer above the second electrode changes.

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