- Patent Title: Electroconductive film comprising base material film and one or more functional layers configured to suppress variations of hue between different viewing angles
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Application No.: US14660111Application Date: 2015-03-17
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Publication No.: US09652100B2Publication Date: 2017-05-16
- Inventor: Koujirou Ookawa , Takashi Kuroda
- Applicant: DAI NIPPON PRINTING CO., LTD.
- Applicant Address: JP Shinjuku-Ku
- Assignee: Dai Nippon Printing Co., Ltd.
- Current Assignee: Dai Nippon Printing Co., Ltd.
- Current Assignee Address: JP Shinjuku-Ku
- Agency: Burr & Brown, PLLC
- Priority: JP2014-055401 20140318
- Main IPC: G06F3/044
- IPC: G06F3/044 ; G09G5/00 ; H05K1/02 ; H05K1/03

Abstract:
Provided is an electroconductive film including a base material film provided with a light transmissive base material (20), and one or more functional layers laminated on a single or both sides of the light transmissive base material; a transparent electroconductive layer, which is provided on the functional layer, and patterned; and a lead-out electrode electrically connected with the transparent electroconductive layer; wherein when the base material film is irradiated with light from a surface side of the functional layer while an incidence angle is varied every five degrees in a range of 5° or more and 75° or less to determine a* and b* values of the base material film in a L*a*b* color system from reflected light toward each regular reflection direction, a variation of the a* values is 1.0 or less, and a variation of the b* values is 3.0 or less.
Public/Granted literature
- US20150268771A1 ELECTROCONDUCTIVE FILM AND TOUCH PANEL SENSOR Public/Granted day:2015-09-24
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