Fingerprint sensor and a display device including the same
US11915510B2 · kind B2 · utility
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21Claims
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Key dates
| Filing date | Aug 2, 2021 |
| Grant date | Feb 27, 2024 |
| Priority date | — |
| Expiry date | Aug 2, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F21/84
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A fingerprint sensor including: a substrate; a light sensing element that includes a sensing electrode disposed on the substrate, a semiconductor layer disposed on the sensing electrode, and a common electrode disposed on the semiconductor layer; a light-blocking conductive layer disposed on the common electrode and including light transmitting holes; and a light guide unit disposed on the light-blocking conductive layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.