Optical fingerprint recognition sensor

    公开(公告)号:US10438042B2

    公开(公告)日:2019-10-08

    申请号:US15422579

    申请日:2017-02-02

    IPC分类号: G06F9/00 G06K9/00

    摘要: An optical fingerprint recognition sensor may improve internal light utilization efficiency and includes: a glass substrate; a protection layer that is positioned on the glass substrate; an active layer that is positioned above the glass substrate and in the protection layer; and a functional layer that is positioned in the protection layer and on the active layer and that includes a first transparent oxide layer and a first metal layer that are sequentially stacked.

    SENSOR PIXEL, FINGERPRINT AND IMAGE SENSOR INCLUDING THE SAME, AND DRIVING METHOD THEREOF

    公开(公告)号:US20190180075A1

    公开(公告)日:2019-06-13

    申请号:US16214296

    申请日:2018-12-10

    IPC分类号: G06K9/00 H04N5/378 H04N5/3745

    摘要: A fingerprint and image sensor includes a plurality of data lines, a plurality of scan lines, to which a plurality of scan signals is transferred, a plurality of reset scan lines, to which a plurality of reset scan signals is transferred, and a sensor panel, which is reset by a reset voltage, which is synchronized to a corresponding reset scan signal and is transferred, generates a pixel voltage according to light supplied during an exposure period, and includes a plurality of sensor pixels, which is synchronized to a corresponding scan signal and transfers the pixel voltage to a corresponding data line, and the exposure period may be a period from a time point, at which the corresponding reset scan signal is changed to an off-level, to a time point, at which the corresponding scan signal is changed to an on-level.

    Fingerprint recognition sensor
    3.
    发明授权

    公开(公告)号:US10127430B2

    公开(公告)日:2018-11-13

    申请号:US15392073

    申请日:2016-12-28

    IPC分类号: G06K9/00

    摘要: Disclosed is a fingerprint recognition sensor including: a backlight unit including a base layer positioned on one surface of a substrate and including a transparent material and a light source irradiating light to the inside of the base layer on one side of the base layer, in which light in which an incident angle on a surface facing the substrate is larger than a critical angle is transmitted toward the substrate; a cover layer spaced apart from the substrate and facing the other surface of the substrate; multiple sensor pixels defined by multiple scan lines and multiple data readout lines on the other surface of the substrate and positioned between the substrate and the cover layer; and multiple photo sensors positioned in the respective sensor pixels and sensing light transmitted on the base layer toward the substrate and total-reflected on a surface contacting a fingerprint of a user on the cover layer.

    Level shifter and array apparatus

    公开(公告)号:US10217399B2

    公开(公告)日:2019-02-26

    申请号:US15623577

    申请日:2017-06-15

    IPC分类号: G09G3/20 H03K19/0175

    摘要: The present invention relates to a level shifter including: a first inverter applied with a first voltage and a second voltage of different polarities and operated depending on an input voltage to output a first inverting output signal; a second inverter applied with the first voltage and the second voltage and operated depending on the first inverting output signal to output a second inverting output signal having an opposite polarity to that of the first inverting output signal; a driver applied with a third voltage and a fourth voltage, including a first load transistor having the first inverting output signal as a gate input and a second load transistor having a fifth voltage as the gate input, and outputting an output voltage having an increased level with respect to the input voltage; and a bootstrap capacitor positioned between an output terminal of the second inverter and a gate electrode of the second load transistor to help the fifth voltage to be bootstrapped depending on the second inverting output signal, and an array apparatus including the same.

    FINGERPRINT RECOGNITION SENSOR
    10.
    发明申请

    公开(公告)号:US20170351901A1

    公开(公告)日:2017-12-07

    申请号:US15392073

    申请日:2016-12-28

    IPC分类号: G06K9/00

    摘要: Disclosed is a fingerprint recognition sensor including: a backlight unit including a base layer positioned on one surface of a substrate and including a transparent material and a light source irradiating light to the inside of the base layer on one side of the base layer, in which light in which an incident angle on a surface facing the substrate is larger than a critical angle is transmitted toward the substrate; a cover layer spaced apart from the substrate and facing the other surface of the substrate; multiple sensor pixels defined by multiple scan lines and multiple data readout lines on the other surface of the substrate and positioned between the substrate and the cover layer; and multiple photo sensors positioned in the respective sensor pixels and sensing light transmitted on the base layer toward the substrate and total-reflected on a surface contacting a fingerprint of a user on the cover layer.