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DISPOSITIF DE DÉTECTION D'EMPREINTES DIGITALES COMPRENANT UN MOTIF TRIDIMENSIONNEL
专利权人:
Fingerprint Cards AB
发明人:
ROMMEL, Sonja
申请号:
EP16821733
公开号:
EP3317701A4
申请日:
2016.06.27
申请国别(地区):
EP
年份:
2018
代理人:
摘要:
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. There is also provided a method for manufacturing a fingerprint sensing device.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/
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