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:
Dec. 11, 2018
Filed:
Mar. 30, 2015
Sharp Kabushiki Kaisha, Osaka, JP;
Koichi Sugiyama, Osaka, JP;
Nobuyuki Yoshioka, Osaka, JP;
SHARP KABUSHIKI KAISHA, Sakai, Osaka, JP;
Abstract
An FTIR touch panel () includes a light guide plate () and a prism () joined to the light guide plate (). The prism () includes a side surface (), which is a joining portion that is joined to the light guide plate (), and a groove () in which a light source () is inserted. Light emitted from the light source () is incident on the prism () through a wall surface of the groove (), and travels from the prism () to the light guide plate () through the side surface (). Plating () is formed on a surface of the prism () over a region excluding the side surface () and the wall surface of the groove (). Accordingly, a touch panel having a high position detection accuracy can be provided.