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:
Nov. 20, 2007
Filed:
Mar. 06, 2006
Kenichi Matsumoto, Osaka, JP;
Koji Tanabe, Osaka, JP;
Shoji Fujii, Osaka, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
A touch panel which is constituted by using an adhesive layer having a thickness which is 70% or more of a thickness of an approximately picture-frame-like spacer which allows respective outer peripheries of an upper substrate and a lower substrate to adhere to each other is provided. Due to such a constitution, when the touch panel is used under high temperature or in an environment where the temperature difference is severely large so that the thermal expansion or shrinkage is generated on upper substrate or lower substrate, these thermal expansion and shrinkage can be absorbed by the thick and soft adhesive layer. As a result, it is possible to suppress the peeling-off of upper and lower substrates thus realizing a surely manipulable touch panel.