Print sensor with gallium nitride LED
US10991751B2 · kind B2 · utility
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3References
24Claims
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Key dates
| Filing date | Feb 20, 2018 |
| Grant date | Apr 27, 2021 |
| Priority date | — |
| Expiry date | Jul 24, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10N15/10
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A papillary print sensor is provided, including a light emitting device configured to emit light radiation towards the sensor; and a matrix photodetector configured to be sensitive to at least part of an emission spectrum of the light emitting device, the light emitting device and the matrix photodetector being distributed together in and/or above a same semiconducting substrate, the light emitting device being composed of at least one gallium nitride light emitting diode (LED) with a series of through openings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.