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. 30, 2003
Filed:
Feb. 08, 2001
Toshiyuki Shimizu, Saitama, JP;
NEC Corporation, Tokyo, JP;
Abstract
A touch panel input device includes layers A and B. Layer A includes a first transparent film, a first transparent resistive film, a second transparent film, a second transparent resistive film, and first dot spacers. Layer B includes a second transparent film, a third transparent resistive film, a fourth transparent resistive film, a glass substrate, and second dot spacers. When the device is operated by a finger, the device detects a contact state of the transparent resistive films in layer A and a non-contact state of the transparent resistive films in layer B. When the device is operated by a finger, the device detects a contact state of the transparent resistive films in layer A and a contact state of the transparent resistive films in layer B. Regardless of the input mode, information of a position thus inputted can be detected. The touch panel input device detects, regardless of the input mode to use a pen or a finger, information of a position inputted by a pen or by a finger.