Optical fingerprint module
US10410039B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 18, 2016 |
| Grant date | Sep 10, 2019 |
| Priority date | — |
| Expiry date | Aug 18, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2354/00
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An optical fingerprint module includes a backlight source, an optical fingerprint sensor including a first surface, a second surface, at least one first non-opaque region and photosensitive pixels, and an OLED display panel including a third surface, a fourth surface and at least one second non-opaque region. The optical fingerprint sensor is disposed between the OLED device panel and the backlight source. Light emitted from the backlight source at least partially passes through the first non-opaque region from the first surface and reaches the second surface, transmits from the second surface to the third surface, passes through the second non-opaque region and reaches the fourth surface. The light reaching the fourth surface is at least partially reflected to be applied to capture a fingerprint image, the reflected light returns to the second non-opaque region, reaches the third surface, transmits to the second surface, and enters the photosensitive pixels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.