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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.:

US 10203824 B1

PDFFull Text
Date of Patent:
Feb. 12, 2019

Filed:

Jan. 10, 2017

Capacitive touch panel

Applicant:

Fujifilm Corporation, Tokyo, JP;

Inventor:

Shinya Ogikubo, Kanagawa, JP;

Assignee:

FUJIFILM Corporation, Minato-Ku, Tokyo, JP;

Attorney:

Sughrue Mion, PLLC

Primary Examiner:

Nan-Ying Yang

Int. Cl.
CPC ...
G06F 3/045 (2006.01); G06F 3/041 (2006.01); G06F 3/044 (2006.01); C09J 201/00 (2006.01); B32B 7/12 (2006.01); B32B 23/20 (2006.01); B32B 27/08 (2006.01); B32B 27/28 (2006.01); B32B 27/30 (2006.01); B32B 27/32 (2006.01); B32B 27/34 (2006.01); B32B 27/36 (2006.01); B32B 3/08 (2006.01);
U.S. Cl.
CPC ...
G06F 3/044 (2013.01); B32B 3/08 (2013.01); B32B 7/12 (2013.01); B32B 23/20 (2013.01); B32B 27/08 (2013.01); B32B 27/281 (2013.01); B32B 27/30 (2013.01); B32B 27/302 (2013.01); B32B 27/306 (2013.01); B32B 27/308 (2013.01); B32B 27/32 (2013.01); B32B 27/325 (2013.01); B32B 27/34 (2013.01); B32B 27/36 (2013.01); B32B 27/365 (2013.01); C09J 201/00 (2013.01); G06F 3/041 (2013.01); G06F 3/045 (2013.01); B32B 2250/44 (2013.01); B32B 2255/10 (2013.01); B32B 2255/26 (2013.01); B32B 2307/20 (2013.01); B32B 2307/206 (2013.01); B32B 2307/412 (2013.01); B32B 2307/42 (2013.01); B32B 2307/558 (2013.01); B32B 2307/732 (2013.01); B32B 2457/208 (2013.01); G06F 2203/04103 (2013.01); G06F 2203/04112 (2013.01);
Abstract

The present invention provides a capacitive touch panel in which malfunction hardly occurs even when an operation is performed after a finger of an operator touches the capacitive touch panel for a long period of time in an ordinary temperature. The capacitive touch panel according to the invention is a capacitive touch panel comprising: a display device; a lower pressure sensitive adhesive layer; a capacitive touch panel sensor; an upper pressure sensitive adhesive layer; and a protective substrate, in this order, in which temperature dependence of a relative dielectric constant of the upper pressure sensitive adhesive layer which is obtained by a temperature dependency evaluation test described below is 10.0% or less.

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