Systems and methods for optical sensing with angled filters
US10891460B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 16, 2018 |
| Grant date | Jan 12, 2021 |
| Priority date | — |
| Expiry date | Jan 21, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E10/549
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Disclosed is a device for optical sensing, comprising: a display comprising a transparent substrate and a plurality of light emitters disposed above the transparent substrate; a transparent cover layer disposed above the display, wherein a top surface of the transparent cover layer provides an input surface for sensing an input object; and, an angled filter disposed below the transparent substrate of the display, wherein the angled filter is configured to allow light within a tolerance angle of an acceptance angle to pass through the angled filter, wherein the acceptance angle is centered around a non-zero angle relative to a normal of the input surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.