On-LCD screen optical fingerprint sensing based on optical imaging with lens-pinhole module and other optical designs
US10303921B1 · kind B1 · utility
14Cited by
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30Claims
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Key dates
| Filing date | Jul 10, 2018 |
| Grant date | May 28, 2019 |
| Priority date | — |
| Expiry date | Jul 10, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V40/45
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Devices and optical sensor modules are provided for provide on-screen optical sensing of fingerprints by using an under-screen optical sensor module that captures and detects light from a fiber on top of the screen. Various implementations of the under-LCD optical sensor modules are provided, including different optical imaging module designs for under-LCD optical sensing, invisible under-LCD optical sensor modules based on concealing optical transmissive features or regions under the LCD opaque borders and optical sensing of topographical features associated with inner tissues of a finger.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.