Optical sensing performance of under-screen optical sensor module for on-screen fingerprint sensing
US10437974B2 · kind B2 · utility
18Cited by
12References
42Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 4, 2018 |
| Grant date | Oct 8, 2019 |
| Priority date | — |
| Expiry date | Jan 4, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V40/1382
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Devices and optical sensor modules are provided for provide on-screen optical sensing of fingerprints by using a under-screen optical sensor module that captures and detects returned light that is emitted by the display screen for displaying images and that is reflected back by the top surface of the screen assembly. Optical collimators are provided in the under-screen optical sensor module to enhance the optical imaging performance. Techniques for reducing the environmental light in the optical sensing are provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.