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:
Sep. 15, 2026
Filed:
Jun. 30, 2022
Semiconductor Energy Laboratory Co., Ltd., Atsugi, JP;
Susumu Kawashima, Atsugi, JP;
Tomoaki Atsumi, Hadano, JP;
Semiconductor Energy Laboratory Co., Ltd., Atsugi, JP;
Abstract
A semiconductor device capable of performing authentication in a short time and a driving method thereof are provided. A semiconductor device including a light-emitting apparatus and an imaging apparatus and a driving method thereof. The imaging apparatus includes pixels arranged in a matrix and a row driver including a shift register circuit. The driving method includes a first mode and a second mode. The first mode includes a step of detecting a position of a finger of a user. The second mode includes a step of reading out an image of a fingerprint of the user from pixels in the first row to a row of the position where the fingerprint of the user is detected in the first mode, row by row. The operation of the shift register circuit is stopped after the first mode and the second mode are completed.