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:
Aug. 08, 2017
Filed:
Nov. 24, 2015
Fujitsu Component Limited, Tokyo, JP;
Kenichi Fujita, Tokyo, JP;
Yuji Makiuchi, Tokyo, JP;
FUJITSU COMPONENT LIMITED, Tokyo, JP;
Abstract
A touch panel apparatus includes a first substrate including a first conductive film, a second substrate including a second conductive film, a first terminal, a second terminal, a third terminal, and a fourth terminal respectively provided on the second substrate, and a controller. The controller calculates a potential difference between a measured potential and a reference potential of each of the first and second terminals with connecting the first and second terminals to the power source and the third and fourth terminals to the ground potential, and a potential difference between a measured potential and a reference potential of each of the third and fourth terminals with connecting the second and third terminals to the power source and the first and fourth terminals to the ground potential, determines a potential difference having a largest value, and calculates a relationship between two contact points based on the determined potential difference.