Invention Grant
- Patent Title: Capacitance touch panel
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Application No.: US14827475Application Date: 2015-08-17
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Publication No.: US09645691B2Publication Date: 2017-05-09
- Inventor: Shinya Ogikubo , Michihiro Shibata , Yasuhiro Mitamura
- Applicant: FUJIFILM Corporation
- Applicant Address: JP Tokyo
- Assignee: FUJIFILM Corporation
- Current Assignee: FUJIFILM Corporation
- Current Assignee Address: JP Tokyo
- Agency: Sughrue Mion, PLLC
- Priority: JP2013-051052 20130313; JP2013-169715 20130819
- Main IPC: G06F3/044
- IPC: G06F3/044 ; G06F3/041

Abstract:
A capacitance touch panel of the invention includes a display, a lower adhesive layer, a capacitance touch panel sensor, an upper adhesive layer and a protective substrate, which are formed in this order. Relative permittivity A in the upper adhesive layer and relative permittivity B in the lower adhesive layer satisfy expression (1): [relative permittivity A≧relative permittivity B . . . (1)] at respective temperatures set in increments of 20° C. from −40° C. to 80° C., and a temperature dependency of the relative permittivity B in the lower adhesive layer as determined by a temperature dependency evaluation test is up to 30%.
Public/Granted literature
- US20150355754A1 CAPACITANCE TOUCH PANEL Public/Granted day:2015-12-10
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