Optical fingerprint module
US10528788B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 18, 2016 |
| Grant date | Jan 7, 2020 |
| Priority date | — |
| Expiry date | Oct 14, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V40/1394
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An optical fingerprint module comprises: an optical fingerprint sensor, the optical fingerprint sensor having a non-opaque substrate and a device layer located on a surface of the non-opaque substrate, the device layer having a pixel area, the pixel area having a plurality of pixels, each pixel having a non-opaque area and a light blocking area, the light blocking area having a photosensitive element, the non-opaque area enabling lights to transmit through the pixel area of the device layer; a protection layer located above the optical fingerprint sensor; and a backlight source located under the pixel area, an included angle formed between a light emitted from the backlight source and an upper surface of the protection layer being an acute angle. The optical fingerprint module has an improved structure and enhanced performance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.