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:
Feb. 06, 2018
Filed:
May. 17, 2016
Fujifilm Corporation, Minato-ku, Tokyo, JP;
Shinya Ogikubo, Ashigara-kami-gun, JP;
Michihiro Shibata, Ashigara-kami-gun, JP;
Yasuhiro Mitamura, Ashigara-kami-gun, JP;
FUJIFILM Corporation, Minato-Ku, Tokyo, JP;
Abstract
The invention provides a capacitive touch panel that hardly cause malfunction in a wide range of temperature environment from a low temperature to a high temperature. The capacitive touch panel according to the invention is a capacitive touch panel including a display device, a lower adhesive layer, a capacitive touch panel sensor, an upper adhesive layer, and a protective substrate in this order, in which a maximum value of tan σ of the upper adhesive layer and a maximum value of tan σ of the lower adhesive layer obtained from a temperature dependency evaluation test is 0.08 or less, and tan σ of the lower adhesive layer at each temperature of every 20° C. from −40° C. to 80° C. is equal to or less than tan σ of the upper adhesive layer.