Invention Grant
- Patent Title: Capacitive touch panel
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Application No.: US15157071Application Date: 2016-05-17
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Publication No.: US09886135B2Publication Date: 2018-02-06
- Inventor: Shinya Ogikubo , Michihiro Shibata , Yasuhiro Mitamura
- Applicant: FUJIFILM Corporation
- Applicant Address: JP Minato-Ku, Tokyo
- Assignee: FUJIFILM Corporation
- Current Assignee: FUJIFILM Corporation
- Current Assignee Address: JP Minato-Ku, Tokyo
- Agency: Sughrue Mion, PLLC
- Priority: JP2013-240084 20131120
- Main IPC: G06F3/041
- IPC: G06F3/041 ; C09J201/00 ; G06F3/044 ; B32B3/08 ; B32B7/12

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.
Public/Granted literature
- US20160259482A1 CAPACITIVE TOUCH PANEL Public/Granted day:2016-09-08
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