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. 18, 2021
Filed:
Jan. 08, 2018
Leading Ui Co., Ltd., Anyang-si, KR;
Sang-hyun Han, Anyang-si, KR;
Sang-hyun Han, Anyang-si, KR;
Abstract
A capacitive fingerprint recognition unit using a thin-film transistor (TFT) sensor array to sense a user's fingerprint in a capacitive manner, a capacitance measurement circuit of a fingerprint sensor, and a fingerprint recognition device having the capacitance measurement circuit are disclosed. A capacitive fingerprint recognition unit includes a thin-film transistor (TFT) sensor array, a gate driver, an upper switch and a lower switch. The TFT sensor array includes a plurality of gate lines, a plurality of sensing lines, a plurality of TFTs connected to the gate line and the sensing line, and a fingerprint recognition pattern connected to each of the TFTs. The gate driver sequentially supplies a gate signal to the gate line. The upper switch is connected to a first end of each of the sensing lines and the lower switch is connected to a second end of each of the sensing lines.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile