Pressure module, touch panel and electronic device

A pressure module comprises a first identification unit, and the first identification unit comprises a first cavity, a first elastic layer, a first inner electrode layer, a first piezoelectric film layer and a first outer electrode layer. The first elastic layer, the first inner electrode layer, the...

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Bibliographische Detailangaben
1. Verfasser: XIANG YUANFANG
Format: Patent
Sprache:chi ; eng
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Zusammenfassung:A pressure module comprises a first identification unit, and the first identification unit comprises a first cavity, a first elastic layer, a first inner electrode layer, a first piezoelectric film layer and a first outer electrode layer. The first elastic layer, the first inner electrode layer, the first piezoelectric film layer and the first outer electrode layer are sequentially arranged from inside to outside to form a hollow tubular structure, and the first recognition unit is of a hollow tubular structure, so that the first piezoelectric film layer can deform in the thickness and perimeter directions, and a larger deformation space and deformation amount are provided for the first piezoelectric film layer; the increase of the deformation amount is beneficial to amplification of an electric signal, the sensitivity and accuracy of pressure detection can be improved, and fingerprints or pressure far away from the pressure module can be detected. The invention further provides a touch panel and an electroni