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:
Feb. 04, 2025
Filed:
Mar. 01, 2023
Japan Display Inc., Tokyo, JP;
Masataka Ikeda, Tokyo, JP;
JAPAN DISPLAY INC., Tokyo, JP;
Abstract
A detection device includes a pixel including a photodiode connected to a gate electrode of a first transistor, and a control circuit configured to control an operation of the pixel in a reset period (including a first and a second periods) for resetting the gate electrode, an exposure period for exposing the photo diode, and a read-out period (a fourth period) to read out a voltage associated with the exposure of the photodiode. The control circuit is configured to read out a first voltage during the first period, read out a second voltage during the second period after stopping a supply of a reset voltage to the gate electrode, read out a third voltage in the fourth period after the exposure period, output a difference value between the first and the second voltages as PUF-ID data and a difference value between the third and the second voltages as detection data.