Patent · US Active

Optical fingerprint sensor illumination using a display

US10679030B2 · kind B2 · utility

3Cited by

0References

28Claims

0Family size

Assignee

Synaptics Incorporated · US

Inventors

Petr Shepelev · Campbell, US
Erik Jonathon Thompson · Phoenix, US
Michitoshi Honma · Tokyo, JP
Toshifumi Ogata · Osaka, JP
Goro Sakamaki · Tokyo, JP
Takashi Nose · Yokohama, JP
Hirobumi Furihata · Tokyo, JP

Key dates

Filing date	Mar 8, 2018
Grant date	Jun 9, 2020
Priority date	—
Expiry date	Jun 19, 2038

Classification

Technology area (CPC G)Physics
CPC primaryG09G2354/00
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

An example method of illuminating an optical fingerprint sensor integrated with a display, where the display includes a fingerprint (FP) pixel region and an outer pixel region exclusive of the FP pixel region, is described. The method includes: processing image data in display driver circuitry configured to drive the display to present an image; adjusting a first brightness setting, during the processing of the image data, corresponding to both the FP pixel region and the outer pixel region to provide illumination for the optical fingerprint sensor; and adjusting a second brightness setting, during the processing of the image data, corresponding to only the outer pixel region.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.