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    • 60. 发明申请
    • FINGERPRINT SENSING DEVICE COMPRISING THREE-DIMENSIONAL PATTERN
    • 包含三维图案的指纹感测装置
    • WO2017007400A1
    • 2017-01-12
    • PCT/SE2016/050637
    • 2016-06-27
    • FINGERPRINT CARDS AB
    • ROMMEL, Sonja
    • G02B5/00B82Y20/00G01N21/552G02B5/18G06K9/00A61B5/117
    • G06K9/0002G06K9/00053G06K9/00087
    • There is provided a fingerprint sensing device comprising: a sensing chip comprising an array of sensing elements, the sensing elements being configured to be connected to readout circuitry for detecting a capacitive coupling between each of the sensing elements and a finger placed on a sensing surface of the sensing device; a cover layer arranged vertically above the sensing elements to cover at least a portions of the sensing elements, wherein an outer surface of the cover layer form the sensing surface of the sensing device; wherein the cover layer comprises a three-dimensional pattern configured to reduce the amount of reflected light within a predetermined sub-range of the visible range, wherein the three-dimensional pattern comprises an array of nanostructures or a reflective diffraction grating. There is also provided a method for manufacturing a fingerprint sensing device.
    • 提供了一种指纹感测装置,包括:感测芯片,包括感测元件阵列,所述感测元件被配置为连接到读出电路,用于检测每个感测元件之间的电容耦合以及放置在感测表面的感测表面上的手指 感测装置; 覆盖层,其垂直地布置在感测元件上方以覆盖感测元件的至少一部分,其中覆盖层的外表面形成感测装置的感测表面; 其中所述覆盖层包括三维图案,其被配置为减少在所述可见范围的预定子范围内的反射光的量,其中所述三维图案包括纳米结构阵列或反射衍射光栅。 还提供了一种制造指纹感测装置的方法。