The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 28, 2024
Filed:
Oct. 21, 2021
Samsung Display Co., Ltd., Yongin-si, KR;
Kee Yong Kim, Yongin-si, KR;
SAMSUNG DISPLAY CO., LTD., Yongin-si, KR;
Abstract
A display device includes a sensor on a display panel, an optical filter, and a fingerprint detector. The sensor includes a first area and a second area and is configured to sense light transmitted through the display panel. The optical filter is between the display panel and sensor, and overlaps with the first area but not the second area. The optical filter blocks light corresponding to a first wavelength range in a wavelength range of the light. The fingerprint detector determine whether a fingerprint is a fake fingerprint or a pre-registered fingerprint based on a first sensing signal and a second sensing signal. The first sensing signal correspond to an area in contact with a finger in the second area, and the second sensing signal corresponds to an area not in contact with the finger among sensing signals from the sensor.