Pixel module and fingerprint identification system
US10354119B2 · kind B2 · utility
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2References
4Claims
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Assignee
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Key dates
| Filing date | Jan 21, 2016 |
| Grant date | Jul 16, 2019 |
| Priority date | — |
| Expiry date | Feb 20, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V40/1329
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A pixel module and a fingerprint identification system are provided. The pixel module includes: a top-layer electrode, configured to receive a contact of a finger, a contact capacitance being formed between the top-layer electrode and the finger; a pixel circuit, configured to detect a capacitance value of the contact capacitance; and a resistor, coupled between the top-layer electrode and the pixel circuit. The pixel module suppresses the electrostatic current formed by the electrostatic charges, thereby achieving the effect of electrostatic protection.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.